(12) Patent Application Publication (10) Pub. No.: US 2013/ A1

Transcription

1 (19) United States US A1 (12) Patent Application Publication (10) Pub. No.: US 2013/ A1 CHEN et al. (43) Pub. Date: Oct. 24, 2013 (54) OPTICAL IMAGE LENS SYSTEM Publication Classification (71) Applicant: LARGAN PRECISION CO.,LTD., (51) Int. Cl. Taichung City (TW) GO2B 13/18 ( ) (52) U.S. Cl. (72) Inventors: Chun-Shan CHEN, Taichung City USPC /713 (TW); Tsung-Han TSAI, Taichung City (TW); Ming-Ta CHOU, Taichung City (57) - ABSTRACT (TW) An optical Image lens system includes, in order from an object side to an image side, a first lens element, a second lens element, a third lens element, a fourth lens element, a fifth (73) Assignee: LARGAN PRECISION CO.,LTD., lens element and a sixth lens element. The first lens element Taichung City (TW) with positive refractive power has a convex object-side sur face. The second lens element has positive refractive power. The third lens element has positive refractive power. The (21) Appl. No.: 13/652,485 fourth lens element has refractive power. The fifth lens ele ment with positive refractive power has a convex image-side surface, wherein at least one surface of the fifth lens element (22) Filed: Oct. 16, 2012 is aspheric. The sixth lens element with negative refractive power has a concave image-side surface, wherein at least one (30) Foreign Application Priority Data Surface of the sixth lens element is aspheric, and the sixth lens element has at least one inflection point on the image-side Apr. 20, 2012 (TW) surface thereof

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20 US 2013/ A1 Oct. 24, 2013 OPTICAL IMAGE LENS SYSTEM RELATED APPLICATIONS The application claims priority to Taiwan Applica tion Serial Number , filed Apr. 20, 2012, which is herein incorporated by reference. BACKGROUND Technical Field The present invention relates to an optical image lens system. More particularly, the present invention relates to a compact optical image lens system applicable to elec tronic products and three-dimensional (3D) image applica tions thereof Description of Related Art In recent years, with the popularity of mobile prod ucts with camera functionalities, the demand of miniaturized optical lens systems is increasing. The sensor of a conven tional photographing camera is typically a CCD (Charge Coupled Device) or a CMOS (Complementary Metal-Oxide Semiconductor) sensor. As the advanced semiconductor manufacturing technologies have allowed the pixel size of sensors to be reduced and compact optical lens systems have gradually evolved toward the field of higher megapixels, there is an increasing demand for compact optical lens systems featuring better image quality A conventional compact optical lens system employed in a portable electronic product mainly adopts a structure of four-element lens such as the one disclosed in U.S. Pat. No. 7,869,142. Due to the popularity of mobile products with high-end specifications, such as Smartphones and PDAs (Personal Digital Assistants), the requirements for high resolution and image quality of modern compact optical lens systems has been increasing significantly. However, the conventional four-element lens structure cannot satisfy these requirements of the compact optical lens system Although other conventional optical lens system with five-element lens structure such as the ones disclosed in U.S. Pat. No. 8,000,030 and U.S. Pat. No. 8,000,031 enhance image quality and resolving power, these optical designs still reside with unsolved problems. Since there are no three con tinuous lens elements closest to the object side with positive refractive power, it is not favorable for presenting its tele photo functionality in which the telephoto ratio is thereby limited. These optical designs are also hard to keep the lens system compact while achieving for the same telephoto ratio. Besides, these optical designs are not favorable for reducing the sensitivity of the lens system because its positive refrac tive power of these optical systems is not effectively distrib uted. SUMMARY 0008 According to one aspect of the present disclosure, an optical image lens system includes in order from an object side to an image side, a first lens element, a second lens element, a third lens element, a fourth lens element, a fifth lens element and a sixth lens element. The first lens element with positive refractive power has a convex object-side sur face. The second lens element has positive refractive power. The third lens element has positive refractive power. The fourth lens element has refractive power. The fifth lens ele ment with positive refractive power has a convex image-side Surface, wherein at least one of an object-side Surface and the image-side surface of the fifth lens element is aspheric. The sixth lens element with negative refractive power has a con cave image-side Surface, wherein at least one of an object side Surface and the image-side Surface of the sixth lens element is aspheric, and the sixth lens element has at least one inflection point on the image-side surface thereof. When a focal length of the optical image lens system is f. and a focal length of the second lens element is f2, the following rela tionship is satisfied: According to another aspect of the present disclo Sure, an optical image lens system includes, in order from an object side to an image side, a first lens element, a second lens element, a third lens element, a fourth lens element, a fifth lens element and a sixth lens element. The first lens element with positive refractive power has a convex object-side sur face. The second lens element has positive refractive power. The third lens element has positive refractive power. The fourth lens element with negative refractive power has a con cave object-side Surface and a convex image-side Surface. The fifth lens element with positive refractive power has a convex image-side Surface, wherein at least one of an object side surface and the image-side surface of the fifth lens ele ment is aspheric. The sixth lens element with negative refrac tive power has a concave image-side Surface, wherein at least one of an object-side Surface and the image-side Surface of the sixth lens element is aspheric, and the sixth lens element has at least one inflection point on the image-side Surface thereof. When a focal length of the optical image lens system is f, a focal length of the second lens element is f2, and a focal length of the third lens element is f3, the following relation ships are satisfied: According to yet another aspect of the present dis closure, an optical image lens system includes, in order from an object side to an image side, a first lens element, a second lens element, a third lens element, a fourth lens element, a fifth lens element and a sixth lens element. The first lens element with positive refractive power has a convex object side surface. The second lens element has positive refractive power. The third lens element has positive refractive power. The fourth lens element with negative refractive power has a concave object-side Surface and a convex image-side Surface. The fifth lens element with positive refractive power has a convex image-side Surface, wherein at least one of an object side surface and the image-side surface of the fifth lens ele ment is aspheric. The sixth lens element with negative refrac tive power has a concave image-side Surface, wherein at least one of an object-side Surface and the image-side Surface of the sixth lens element is aspheric, and the sixth lens element has at least one inflection point on the image-side Surface thereof. When a focal length of the second lens element is f2, and a focal length of the third lens element is f3, the following relationship is satisfied: BRIEF DESCRIPTION OF THE DRAWINGS The invention can be more fully understood by read ing the following detailed description of the embodiment, with reference made to the accompanying drawings as fol lows:

21 US 2013/ A1 Oct. 24, FIG. 1 is a schematic view of an optical image lens system according to the 1st embodiment of the present dis closure; 0013 FIG. 2 shows spherical aberration curves, astig matic field cures and a distortion curve of the optical image lens system according to the 1st embodiment; 0014 FIG. 3 is a schematic view of an optical image lens system according to the 2nd embodiment of the present dis closure; 0015 FIG. 4 shows spherical aberration curves, astig matic field curves and a distortion curve of the optical image lens system according to the 2nd embodiment; 0016 FIG. 5 is a schematic view of an optical image lens system cording to the 3rd embodiment of the present disclo Sure; 0017 FIG. 6 shows spherical aberration curves, astig matic field curves and a distortion curve of the optical image lens system according to the 3rd embodiment; 0018 FIG. 7 is a schematic view of an optical image lens system according to the 4th embodiment of the present dis closure; 0019 FIG. 8 shows spherical aberration curves, astig matic field curves and a distortion curve of the optical image lens system according to the 4th embodiment; 0020 FIG. 9 is a schematic view of an optical image lens system according to the 5th embodiment of the present dis closure; 0021 FIG. 10 shows spherical aberration curves, astig matic field curves and a distortion curve of the optical image lens system according to the 5th embodiment; 0022 FIG. 11 is a schematic view of an optical image lens system according to the 6th embodiment of the present dis closure; 0023 FIG. 12 shows spherical aberration curves, astig matic field curves and a distortion curve of the optical image lens system according to the 6th embodiment; 0024 FIG. 13 is a schematic view of an optical image lens system according to the 7th embodiment of the present dis closure; 0025 FIG. 14 shows spherical aberration curves, astig matic field curves and a distortion curve of the optical image lens system according to the 7th embodiment; 0026 FIG. 15 is a schematic view of an optical image lens system according to the 8th embodiment of the present dis closure; 0027 FIG. 16 shows spherical aberration curves, astig matic field curves and a distortion curve of the optical image lens system according to the 8th embodiment; 0028 FIG. 17 is a schematic view of an optical image lens system according to the 9th embodiment of the present dis closure; and 0029 FIG. 18 shows spherical aberration curves, astig matic field curves and a distortion curve of the optical image lens system according to the 9th embodiment. DETAILED DESCRIPTION An optical image lens system includes, in order from an object side to an image side, a first lens element, a second lens element, a third lens element, a fourth lens ele ment, a fifth lens element and a sixth lens element The first lens element with positive refractive power has a convex object-side Surface, and can have a concave image-side surface, so that the total track length of the optical image lens system can be reduced by properly adjusting the positive refractive power of the first lens element The second lens element with positive refractive power can have a convex object-side Surface and a concave image-side surface. Therefore, the sensitivity of the optical image lens system can be reduced by balancing the distribu tion of the positive refractive power of the first lens element, and the Surface curvature of the second lens element can thereby correct the astigmatism of the optical image lens system The third lens element with positive refractive power can enhance the telephoto functionality of the optical image lens system by combining with the positive refractive power of the first lens element and the second lens element. Therefore, the optical image lens system can obtain a good telephoto ratio when applying to the six-lens optical system with high resolving power. The six-lens optical image lens system can thereby not only keep its optical system compact but also obtain a better image quality. Furthermore, the third lens element can have a convex image-side Surface for adjust ing the positive refractive power of the third lens element The fourth lens element with negative refractive power has a concave object-side surface and a convex image side surface, so that the aberration generated from the first through third lens elements with positive refractive power can be corrected, and the astigmatism of the optical image lens system can also be corrected The fifth lens element with positive refractive power has a convex image-side surface. Therefore, the high order aberration of the optical image lens system can be corrected by adjusting the refractive power of the fifth lens element for enhancing the resolving power and retaining high image qual ity The sixth lens element with negative refractive power has a concave image-side Surface, so that the principal point of the optical image lens system can be positioned away from the image plane, and the total track length of the optical image lens system can be reduced so as to maintain the compact size of the optical image lens system. Furthermore, the sixth lens element has at least one inflection point on the image-side Surface thereof. So that the angle at which the incident light projects onto an image sensor from the off-axis field can be effectively reduced, and the aberration of the off-axis field can be further corrected Whena focallength of the optical image lens system is f, and a focal length of the second lens element is f2, the following relationship is satisfied: Therefore, the distribution of the positive refractive power can be properly balanced for reducing the sensitivity of the optical image lens system, and the manufacturing, the assembling or the environmental test of the optical image lens system can be more stable fand f2 can further satisfy the following relation ship: 0<ff2< When the focal length of the optical image lens system is f, a focal length of the third lens element is f3, and a focal length of the fourth lens element is f4, the following relationship is satisfied:

22 US 2013/ A1 Oct. 24, Therefore, the distribution of the refractive power of the optical image lens system can be balanced by properly adjusting the refractive power of the third lens element and the sensitivity of the optical image lens system can be reduced. Moreover, the aberration generated from the third lens element can be corrected by adjusting the refractive power of the fourth lens element When a curvature radius of the object-side surface of the fourth lens element is R7, and a curvature radius of the image-side surface of the fourth lens element is R8, the fol lowing relationship is satisfied: By adjusting the surface curvature of the fourth lens element, the aberration generated from the first through third lens elements and the astigmatism can be corrected R7 and R8 can further satisfy the following relation ship: -0.50<(R7-R8)/(R7-R8)< When a central thickness of the second lens element is CT2, and a central thickness of the third lens element is CT3, the following relationship is satisfied: Therefore, the thickness of the second lens element and the third lens element is favorable for manufacturing and assembling the optical image lens system and thereby the manufacturing yield rate can be increased When an Abbe number of the fourth lens element is V4, and an Abbe number of the fifth lens element is V5, the following relationship is satisfied: Therefore, the chromatic aberration of the optical image lens system can be corrected Whena focallength of the first lens element is fl and a focal length of the third lens element is f3, the following relationship is satisfied: Therefore, the third lens element provides the main positive refractive power to enhance the telephoto function ality of the optical image lens system and thereby the total track length of the optical image lens system is reduced for keeping the optical system compact When an Abbe number of the first lens element is V1, and an Abbe number of the second lens element is V2, the following relationship is satisfied: Therefore, the chromatic aberration of the optical image lens system can be corrected When a focal length of the second lens element is f2., and a focal length of the third lens element is f3, the following relationship is satisfied: 0054) Therefore, the distribution of the positive refractive power of the second lens element and the third lens element is proper for reducing the sensitivity of the optical image lens system, and the total track length of the optical image lens system can be effectively reduced by obtaining a good tele photo ratio According to the optical image lens system of the present disclosure, the lens elements thereof can be made of glass or plastic material. When the lens elements are made of glass material, the distribution of the refractive power of the optical image lens system may be more flexible to design. When the lens elements are made of plastic material, the manufacturing cost can be effectively reduced. Furthermore, Surfaces of each lens element can be aspheric, so that it is easier to make the Surfaces into non-spherical shapes. As a result, more controllable variables are obtained, and the aber ration is reduced, as well as the number of required lens elements can be reduced while constructing an optical sys tem. Therefore, the total track length of the optical image lens system can also be reduced According to the optical image lens system of the present disclosure, when the lens element has a convex Sur face, it indicates that the paraxial region of the Surface is convex; and when the lens element has a concave Surface, it indicates that the paraxial region of the Surface is concave According to the optical image lens system of the present disclosure, the optical image lens system can include at least one stop. Such as an aperture stop, a glare stop, or a field stop, etc. Said glare stop or said field stop is allocated for reducing Stray light while retaining high image quality. Fur thermore, an aperture stop can be configured as a front stop or a middle stop. A front stop which can be disposed between an object and the first lens element provides a longer distance from an exit pupil of the system to an image plane and thereby the generated telecentric effect improves the image-sensing efficiency of an image sensor. A middle stop which can be disposed between the first lens element and the second lens element is favorable for enlarging the field of view of the system and thereby provides a wider field of view for the SaC According to the above description of the present disclosure, the following 1st-9th specific embodiments are provided for further explanation. 1st Embodiment 0059 FIG. 1 is a schematic view of an optical image lens system according to the 1st embodiment of the present dis closure. FIG. 2 shows spherical aberration curves, astigmatic field curves and a distortion curve of the optical image lens system according to the 1st embodiment. In FIG. 1, the opti cal image lens system includes, in order from an object side to an image side, an aperture stop 100, a first lens element 110. a second lens element 120, a third lens element 130, a fourth lens element 140, a fifth lens element 150, a sixth lens element 160, an IR-cut filter 180 and an image plane The first lens element 110 with positive refractive power has a convex object-side Surface 111 and a concave image-side surface 112. The first lens element 110 is made of plastic material and has the object-side surface 111 and the image-side Surface 112 being aspheric The second lens element 120 with positive refrac tive power has a convex object-side Surface 121 and a concave image-side surface 122. The second lens element 120 is made of plastic material and has the object-side surface 121 and the image-side Surface 122 being aspheric The third lens element 130 with positive refractive power has a convex object-side Surface 131 and a convex image-side surface 132. The third lens element 130 is made of plastic material and has the object-side surface 131 and the image-side Surface 132 being aspheric The fourth lens element 140 with negative refractive power has a concave object-side Surface 141 and a convex

23 US 2013/ A1 Oct. 24, 2013 image-side surface 142. The fourth lens element 140 is made of plastic material and has the object-side surface 141 and the image-side Surface 142 being aspheric The fifth lens element 150 with positive refractive power has a convex object-side surface 151 and a convex image-side surface 152. The fifth lens element 150 is made of plastic material and has the object-side surface 151 and the image-side Surface 152 being aspheric The sixth lens element 160 with negative refractive power has a concave object-side Surface 161 and a concave image-side surface 162. The sixth lens element 160 is made of plastic material and has the object-side surface 161 and the image-side Surface 162 being aspheric. Furthermore, the sixth lens element 160 has inflection points on the image-side surface 162 thereof The IR-cut filter 180 is made of glass, and located between the sixth lens element 160 and the image plane 170, and will not affect the focal length of the optical image lens system The equation of the aspheric surface profiles of the aforementioned lens elements of the 1st embodiment is expressed as follows: wherein, 0068 X is the relative distance between a point on the aspheric Surface spaced at a distance Y from the optical axis and the tangential plane at the aspheric Surface vertex on the optical axis; 0069 Y is the distance from the point on the curve of the aspheric Surface to the optical axis; 0070 R is the curvature radius: 0071 k is the conic coefficient; and 0072 Ai is the i-th aspheric coefficient In the optical image lens system according to the 1st embodiment, when a focal length of the optical image lens system is fan f-number of the optical image lens system is Fno, and half of the maximal field of view of the optical image lens system is HFOV, these parameters have the following values: 0074 f-3.33 mm: 0075 Fno=2.35; and HFOV=39.4 degrees In the optical image lens system according to the 1st embodiment, when an Abbe number of the first lens element 110 is V1, an Abbe number of the second lens element 120 is V2, an Abbe number of the fourth lens element 140 is V4, and an Abbe number of the fifth lens element 150 is V5 the following relationships are satisfied: V1/V2=2.40; and Sf24= In the optical image lens system according to the 1st embodiment, when a central thickness of the second lens element 120 is CT2, and a central thickness of the third lens element 130 is CT3, the following relationship is satisfied: In the optical image lens system according to the 1st embodiment, when a curvature radius of the object-side sur face 141 of the fourth lens element 140 is R7, and a curvature radius of the image-side surface 142 of the fourth lens ele ment 140 is R8, the following relationship is satisfied: (R7-R8)/(R7+R8)= In the optical image lens system according to the 1st embodiment, when the focal length of the optical image lens system is f, a focal length of the first lens element 110 is f1, a focal length of the second lens element 120 is f2, a focal length of the third lens element 130 is f3, and a focal length of the fourth lens element 140 is f4, the following relationships are satisfied: I0081. The detailed optical data of the 1st embodiment are shown in Table 1 and the aspheric surface data are shown in Table 2 below. TABLE 1. 1st Embodiment f = 3.33 mm, Fno = HFOV = 39.4 deg. Focal Surface # Curvature Radius Thickness Material Index Abbe # length O Object Plano Infinity 1 Ape. Stop Plano Lens (ASP) Plastic S (ASP) O Lens (ASP) Plastic (ASP) O.2OS 6 Lens (ASP) Plastic S (ASP) O Lens (ASP) Plastic (ASP) O.O3O 10 Lens (ASP) Plastic (ASP) O.O3O 12 Lens (ASP) Plastic (ASP) O.7OO

24 US 2013/ A1 Oct. 24, 2013 TABLE 1-continued 1st Embodiment f = 3.33 mm, Fno = HFOV = 39.4 deg. Surface # Curvature Radius Thickness Material Index 14 IR-cut filter Plano Glass Plano O Image Plano Note, Reference wavelength (d-line) is mm. Abbeii 64.2 Focal length TABLE 2 Aspheric Coefficients Surface # k = -2.12O1E--OO -2.OOOOE E--O OE--OO A4 = E-O E-O E-O E-O1 A6 = E-O E-O2 S.7642E-O E-O1 A8 = E--OO E-O E--OO E-O1 A1O = E--OO E--OO 1.1SSSE-OO E-O2 A12 = E--OO 6.695SE-O E OO1E-O1 A14 = E--OO E-O E--OO OE-O1 Surface # 1.OOOOE OE E-O E-O OE-O E-O E-O1 OOOOOE--OO E E E-O E E-O E k = E--OO E--OO E--OO E--OO A4 = E-O E-O E-O E-O2 A6 = E-O1-2.77SSE-O E-O E-O2 A8 = E E-O E-O E-01 A1O = E-O E-O E-O E-O2 A12 = E-O E-O E-O E-O2 A14 = E-O E-O E-O E-03-2.OOOOE--O E-O E-O E-O3 7.53S,6E OOSE E-OS E--OO E-02 24O95E OE E E E In Table 1, the curvature radius, the thickness and the focallength are shown in millimeters (mm). Surface num bers 0-16 represent the Surfaces sequentially arranged from the object-side to the image-side along the optical axis. In Table 2, k represents the conic coefficient of the equation of the aspheric surface profiles. A1-A14 represent the aspheric coefficients ranging from the 1st order to the 14th order. This information related to Table 1 and Table 2 applies also to the Tables for the remaining embodiments, and so an explanation in this regard will not be provided again. 2nd Embodiment 0083 FIG. 3 is a schematic view of an optical image lens system according to the 2nd embodiment of the present dis closure. FIG. 4 shows spherical aberration curves, astigmatic field curves and a distortion curve of the optical image lens system according to the 2nd embodiment. In FIG. 3, the optical image lens system includes, in order from an object side to an image side, a first lens element 210, an aperture stop 200, a second lens element 220, a third lens element 230, a fourth lens element 240, a fifth lens element 250, a sixth lens element 260, an IR-cut filter 280 and an image plane 270. I0084. The first lens element 210 with positive refractive power has a convex object-side Surface 211 and a concave image-side surface 212. The first lens element 210 is made of plastic material and has the object-side surface 211 and the image-side Surface 212 being aspheric The second lens element 220 with positive refrac tive power has a convex object-side Surface 221 and a concave image-side surface 222. The second lens element 220 is made of plastic material and has the object-side surface 221 and the image-side Surface 222 being aspheric. I0086. The third lens element 230 with positive refractive power has a convex object-side Surface 231 and a convex image-side surface 232. The third lens element 230 is made of plastic material and has the object-side surface 231 and the image-side Surface 232 being aspheric. I0087. The fourth lens element 240 with negative refractive power has a concave object-side Surface 241 and a convex image-side surface 242. The fourth lens element 240 is made of plastic material and has the object-side surface 241 and the image-side Surface 242 being aspheric. I0088. The fifth lens element 250 with positive refractive power has a convex object-side surface 251 and a convex image-side surface 252. The fifth lens element 250 is made of plastic material and has the object-side surface 251 and the image-side Surface 252 being aspheric. I0089. The sixth lens element 260 with negative refractive power has a convex to object-side Surface 261 and a concave image-side surface 262. The sixth lens element 260 is made of plastic material and has the object-side surface 261 and the image-side Surface 262 being aspheric. Furthermore, the sixth lens element 260 has inflection points on the image-side surface 262 thereof. (0090. The IR-cut filter 280 is made of glass, and located between the sixth lens element 260 and the image plane 270, and will not affect the focal length of the optical image lens system.

25

26 US 2013/ A1 Oct. 24, field curves and a distortion curve of the optical image lens (0097. The fourth lens element 340 with negative refractive system according to the 3rd embodiment. In FIG. 5, the power has a concave object-side Surface 341 and a convex optical image lens system includes, in order from an object image-side surface 342. The fourth lens element 340 is made side to an image side, an to aperture stop 300, a first lens of plastic material and has the object-side surface 341 and the element 310, a second lens element 320, a third lens element image-side surface 342 being aspheric. 330, a fourth lens element 340, a fifth lens element 350, a sixth The fifth lens element 350 with positive refractive lens element 360, an IR-cut filter 380 and an image plane 370. power has a convex object-side surface 351 and a convex image-side surface 352. The fifth lens element 350 is made of The first lens element 310 with positive refractive plastic material and has the object-side surface 351 and the power has a convex object-side Surface 311 and a concave image-side Surface 352 being aspheric. image-side surface 312. The first lens element 310 is made of (0099. The sixth lens element 360 with negative refractive plastic material and has the object-side surface 311 and the power has a concave object-side Surface 361 and a concave image-side Surface 312 being aspheric. image-side surface 362. The sixth lens element 360 is made of The second lens element 320 with positive refrac- plastic material and has the object-side surface 361 and the tive power has a convex object-side Surface 321 and a concave image-side surface 362 being aspheric. Furthermore, the sixth lens element 360 has inflection points on the image-side image-side surface 322. The second lens element 320 is made SaCe face 362 thereof. of plastic material and has the object-side surface 321 and the The IR-cut filter 380 is made of glass, and located image-side Surface 322 being aspheric. between the sixth lens element 360 and the image plane 370, The third lens element 330 with positive refractive and will not affect the focal length of the optical image lens power has a convex object-side surface 331 and a convex system. image-side surface 332. The third lens element 330 is made of 0101 The detailed optical data of the 3rd embodiment are plastic material and has the object-side surface 331 and the shown in Table 5 and the aspheric surface data are shown in image-side Surface 332 being aspheric. Table 6 below. TABLE 5 3rd Embodiment f = 2.94 mm, Fno = 2.50, HFOV = 40.0 deg. Focal Surface # Curvature Radius Thickness Material Index Abbe # length O Object Plano Infinity 1 Ape. Stop Plano Lens (ASP) O.320 Plastic 1.53S (ASP) O.O86 4 Lens (ASP) O.292 Plastic 1.53S (ASP) O Lens (ASP) O.S3S Plastic 1.53S (ASP) O Lens (ASP) Plastic (ASP) O O Lens (ASP) O.9S4 Plastic 1.53S (ASP) O Lens (ASP) Plastic (ASP) O.6OO 14 R-cut filter Plano Glass S Plano O mage Plano Note: Reference wavelength (d-line) is mm. TABLE 6 Aspheric Coefficients Surface # k = E--OO -2.OOOOE--O E--OO E--OO -1978OE-01 S.1915E--OO A4 = E-O E-O1-2.8O35E E E E-O2 A6 = E-O E-O E-O E-O E-O E-O1 A8 = E--OO E-O E--OO E-O E-01 S.4391E-O2 A1O = E-O E--OO 91184E-O E-O E-O E-O2 A12 = E--OO 9.367OE-O E-O E-O OE-O E-03 A14 = E E-O E--OO 15258E-O1 1577OE-O E-OS

27 US 2013/ A1 Oct. 24, 2013 TABLE 6-continued Aspheric Coefficients Surface # k = E--OO OE--OO -5.07OSE-OO OE--OO A4 = E-O1 1.45O1E-O E-O E-02 A6 = E-O E-O1 1.6O77E-O OE-O2 A8 = E--OO 32261E-O E OE-O1 A10 = E-O E E-O E-O2 A12 = E-O E-O E E-O2 A14 = E-O E-O E E-O3-1.OOOOE--OO E-O E-O E E E E OOE O1E-O E-O E E-O E-OS E In the optical image system according to the 3rd embodiment, the definitions off, Fno, HFOV,V1,V2, V4, V5, R7, R8, CT2, CT3, f1, f2, f3 and f4 are the same as those stated in the 1st embodiment with corresponding values for the 3rd embodiment. Moreover, these parameters can be cal culated from Table 5 and Table 6 as the following values and satisfy the following relationships: f(mm) 2.94 (R7 - R8)/(R7+ R8) Fno 2.50 ff2 O.32 HFOV (deg.) 40.0 fif3 - ffa 1.77 V1/V (f1 - f3)/(f1 + f3) O.71 VSFV (f2 - f3)/(f2 + f3) O.42 CT2/CT th Embodiment 0103 FIG. 7 is a schematic view of an optical image lens system according to to the 4th embodiment of the present disclosure. FIG. 8 shows spherical aberration curves, astig matic field curves and a distortion curve of the optical image lens system according to the 4th embodiment. In FIG. 7, the optical image lens system includes, in order from an object side to an image side, an aperture stop 400, a first lens element 410, a second lens element 420, a third lens element 430, a fourth lens element 440, a fifth lens element 450, a sixth lens element 460, an IR-cut filter 480 and an image plane The first lens element 410 with positive refractive power has a convex object-side Surface 411 and a concave image-side surface 412. The first lens element 410 is made of plastic material and has the object-side surface 411 and the image-side Surface 412 being aspheric The second lens element 420 with positive refrac tive power has a convex object-side Surface 421 and a concave image-side surface 422. The second lens element 420 is made of plastic material and has the object-side surface 421 and the image-side Surface 422 being aspheric The third lens element 430 with positive refractive power has a convex object-side Surface 431 and a convex image-side surface 432. The third lens element 430 is made of plastic material and has the object-side surface 431 and the image-side Surface 432 being aspheric The fourth lens element 440 with negative refractive power has a concave object-side Surface 441 and a convex image-side surface 442. The fourth lens element 440 is made of plastic material and has the object-side surface 441 and the image-side surface 442 being aspheric The fifth lens element 450 with positive refractive power has a convex object-side surface 451 and a convex image-side surface 452. The fifth lens element 450 is made of plastic material and has the object-side surface 451 and the image-side Surface 452 being aspheric The sixth lens element 460 with negative refractive power has a concave object-side Surface 461 and a concave image-side surface 462. The sixth lens element 460 is made of plastic material and has the object-side surface 461 and the image-side Surface 462 being aspheric. Furthermore, the sixth lens element 460 has inflection points on the image-side surface 462 thereof The IR-cut filter 480 is made of glass, and located between the sixth lens element 460 and the image plane 470, and will not affect the focal length of the optical image lens system The detailed optical data of the 4th embodiment are shown in Table 7 and the aspheric surface data are shown in Table 8 below. TABLE 7 4th Embodiment f = 2.82 mm, Fno = HFOV = 45.0 deg. Focal Surface # Curvature Radius Thickness Material Index Abbe # length O Object Plano Infinity 1 Ape. Stop Plano Lens (ASP) Plastic (ASP) O.O90 4 Lens (ASP) Plastic (ASP) O Lens (ASP) O.S6S Plastic SS (ASP) O Lens (ASP) Plastic (ASP) O.OSO

28 US 2013/ A1 Oct. 24, 2013 TABLE 7-continued 4th Embodiment f = 2.82 mm, Fno = HFOV = 45.0 deg. Focal Surface # Curvature Radius Thickness Material Index Abbe # length 10 Lens (ASP) Plastic SS (ASP) O Lens (ASP) Plastic SS (ASP) O3SO 14 IR-cut filter Plano Glass Plano O.S68 16 Image Plano Note: Reference wavelength (d-line) is mm. TABLE 8 Aspheric Coefficients Surface # k = E--OO -1.OOOOE E--OO E--OO E E--OO A4 = -46O85E O25E E-O E-O E-O E-O2 A6 = 1877OE-01 S.S2O2E-O E E-O E-O E-O1 A8 = E E--OO E--OO E-O E-O E-O3 A1O = E-O E E SE-O E-O1-1.O334E-O2 A12 = E E-O E--OO E-O E-O2 1.O2SOE-02 A14 = -6.2O3OE--OO E-O E--OO 12032E-O E-O E-O2 Surface # k = -2.0O28E--OO E--OO E--O E E--O E--OO A4 = E-O E-O E-O E-O E-O2-7.8O14E-O2 A6 = E-O E-O E E-O2 3.S162E-O SE-O2 A8 = E E-O E-O2 1.OS87E-O OE-O E-03 A1O = E-O E OE-O E-O E O2E-O3 A12 = S.77O2E-O E-O E-04 2.SSO6E-O OE E-04 A14 = E-O E-O E OE E-O E-O In the optical image system according to the 4th optical image lens system includes, in order from an object embodiment, the definitions off, Fno, HFOV,V1,V2, V4, V5, R7, R8, CT2, CT3, f1, f2, f3 and f4 are the same as those stated in the 1st embodiment with corresponding values for the 4th embodiment. Moreover, these parameters can be cal culated from Table 7 and Table 8 as the following values and satisfy the following relationships: f(mm) 2.82 (R7 - R8)/(R7+ R8) Fno 2.45 ff2 O.21 HFOV (deg.) 45.0 fif3 - ffa 2.29 V1/V (f1 - f3)/(f1 + f3) O.92 VSFV (f2 - f3)/(f2 + f3) 0.67 CT2/CT3 O42 5th Embodiment 0113 FIG. 9 is a schematic view of an optical image lens system according to the 5th embodiment of the present dis closure. FIG. 10 shows spherical aberration curves, astig matic field curves and a distortion curve of the optical image lens system according to the 5th embodiment. In FIG. 9, the side to an image side, an aperture stop 500, a first lens element 510, a second lens element 520, a third lens element 530, a fourth lens element 540, a fifth lens element 550, a sixth lens element 560, an IR-cut filter 580 and an image plane The first lens element 510 with positive refractive power has a convex object-side Surface 511 and a concave image-side surface 512. The first lens element 510 is made of plastic material and has the object-side surface 511 and the image-side Surface 512 being aspheric The second lens element 520 with positive refrac tive power has a convex object-side surface 521 and a concave image-side surface 522. The second lens element 520 is made of plastic material and has the object-side surface 521 and the image-side Surface 522 being aspheric The third lens element 530 with positive refractive power has a concave object-side surface 531 and a convex image-side surface 532. The third lens element 530 is made of plastic material and has the object-side surface 531 and the image-side Surface 532 being aspheric The fourth lens element 540 with negative refractive power has a concave object-side Surface 541 and a convex image-side surface 542. The fourth lens element 540 is made

29 US 2013/ A1 10 Oct. 24, 2013 of plastic material and has the object-side surface 541 and the image-side Surface 542 being aspheric The fifth lens element 550 with positive refractive power has a convex object-side surface 551 and a convex image-side surface 552. The fifth lens element 550 is made of plastic material and has the object-side surface 551 and the image-side surface 552 being aspheric. 0119) The sixth lens element 560 with negative refractive power has a convex object-side surface 561 and a concave image-side surface 562. The sixth lens element 560 is made of plastic material and has the object-side surface 561 and the image-side surface 562 being aspheric. Furthermore, the sixth lens element 560 has inflection points on the image-side Surface 562 thereof The IR-cut filter 580 is made of glass, and located between the sixth lens element 560 and the image plane 570, and will not affect the focal length of the optical image lens system. I0121 The detailed optical data of the 5th embodiment are shown in Table 9 and the aspheric surface data are shown in Table 10 below. TABLE 9 5th Embodiment f = 3.24 mm, Fno = 2.25, HFOV = 40.2 deg. Focal Surface # Curvature Radius Thickness Material Index Abbe # length O Object Plano Infinity 1 Ape. Stop Plano Lens (ASP) Plastic (ASP) O.O60 4 Lens (ASP) Plastic OO (ASP) O Lens (ASP) Plastic (ASP) O.18O 8 Lens (ASP) Plastic (ASP) O.OS3 10 Lens (ASP) Plastic (ASP) O.O67 12 Lens (ASP) Plastic (ASP) O.7OO 14 R-cut filter Plano Glass S Plano mage Plano Note: Reference wavelength (d-line) is mm. TABLE 10 Aspheric Coefficients Surface # k = E--OO -1.6O24E--O1-2.OOOOE--O E--OO -1.OOOOE E-O1 A4 = E-O E-O E-O E-O E-O1-4.59OOE-O2 A6 = 4.34O1E-O E-O E-O E-O OE-O E-O1 A8 = E--OO E-O E--OO E-O1 1.2O37E-O E-O2 A1O = 1706OE E E--OO E-O E-O E-O2 A12 = E--OO 6.695SE-O E E-O E-O E-03 A14 = E--OO E-O E--OO OE-O SE-O E-03 Surface # k = E--OO E E--O E--OO -1.OOOOE E--OO A4 = E-O E-O E-O E-O E-O E-O2 A6 = E-O1-2.74O9E E-O E-O2 3.94O1E-O E-O2 A8 = 1.132OE OE-O E-O OE-O E-O E-03 A1O = E-O E-O E-O E-O E-04 1.O2S3E-03 A12 = E-O E-O E-O E-O2 1722OE E-04 A14 = E-O E-O E E E-OS S.S298E-06

30 US 2013/ A1 Oct. 24, In the optical image system according to the 5th embodiment, the definitions off, Fno, HFOV,V1,V2, V4, V5, R7, R8, CT2, CT3, f1, f2, f3 and f4 are the same as those stated in the 1st embodiment with corresponding values for the 5th embodiment. Moreover, these parameters can be cal culated from Table 9 and Table 10 as the following values and satisfy the following relationships: f(mm) 3.24 (R7 - R8)/(R7+ R8) Fno 2.25 ff2 O.08 HFOV (deg.) 40.2 fif3 - ffa 1.74 V1/V (f1 - f3)/(f1 + f3) O16 VSFV (f2 - f3)/(f2 + f3) O.82 CT2/CT th Embodiment 0123 FIG. 11 is a schematic view of an optical image lens system according to the 6th embodiment of the present dis closure. FIG. 12 shows spherical aberration curves, astig matic field curves and a distortion curve of the optical image lens system according to the 6th embodiment. In FIG. 11, the optical image lens system includes, in order from an object side to an image side, a first lens element 610, an aperture stop 600, a second lens element 620, a third lens element 630, a fourth lens element 640, a fifth lens element 650, a sixth lens element 660, an IR-cut filter 680 and an image plane The first lens element 610 with positive refractive power has a convex object-side Surface 611 and a concave image-side surface 612. The first lens element 610 is made of plastic material and has the object-side surface 611 and the image-side Surface 612 being aspheric The second lens element 620 with positive refrac tive power has a convex object-side Surface 621 and a concave image-side surface 622. The second lens element 620 is made of plastic material and has the object-side surface 621 and the image-side Surface 622 being aspheric. I0126. The third lens element 630 with positive refractive power has a convex object-side surface 631 and a convex image-side surface 632. The third lens element 630 is made of plastic material and has the object-side surface 631 and the image-side Surface 632 being aspheric. I0127. The fourth lens element 640 with negative refractive power has a concave object-side Surface 641 and a convex image-side surface 642. The fourth lens element 640 is made of plastic material and has the object-side surface 641 and the image-side Surface 642 being aspheric. I0128. The fifth lens element 650 with positive refractive power has a convex object-side surface 651 and a convex image-side surface 652. The fifth lens element 650 is made of plastic material and has the object-side surface 651 and the image-side Surface 652 being aspheric. I0129. The sixth lens element 660 with negative refractive power has a convex object-side Surface 661 and a concave image-side surface 662. The sixth lens element 660 is made of plastic material and has the object-side surface 661 and the image-side Surface 662 being aspheric. Furthermore, the sixth lens element 660 has inflection points on the image-side surface 662 thereof The IR-cut filter 680 is made of glass, and located between the sixth lens element 660 and the image plane 670, and will not affect the focal length of the optical image lens system. I0131 The detailed optical data of the 6th embodiment are shown in Table 11 and the aspheric surface data are shown in Table 12 below. TABLE 11 6th Embodiment f = 2.88 mm, Fno = 2.00, HFOV = 42.5 deg. Focal Surface # Curvature Radius Thickness Material Index Abbe # length O Object Plano Infinity 1 Lens (ASP) Plastic S (ASP) O Ape. Stop Plano Lens (ASP) Plastic S (ASP) O Lens (ASP) O.SS7 Pastic S (ASP) O Lens (ASP) Plastic (ASP) O.O41 10 Lens (ASP) Plastic S (ASP) O Lens (ASP) Plastic S (ASP) O.7OO 14 R-cut filter Plano Glass S Plano O mage Plano Note: Reference wavelength (d-line) is mm.

31 US 2013/ A1 12 Oct. 24, 2013 TABLE 12 Aspheric Coefficients Surface # k = -3.8O85E-00-3.OOOOE E--OO OE--OO A4 = E-O3-1.36O2E-O OE E-O1 A6 = E-O SE-O E-O OE-O2 A8 = E E-01-2.OO42E--OO 21743E-O2 A1O = E-O E-O E--OO E-O1 A12 = 6.O247E-O E-O E-O E-O1 A14 = -6.O2O1E-O E E E-O1 Surface # E--O E-O E-O E-O E-O E-O E-O OE--OO E-O E E E-O OE E-O k = E--OO -2.OO77E--OO E-O E--OO A4 = E-O E E-O OE-02 A6 = E-O E-O SE-O E-O2 A8 = 11603E--OO 3.141OE E E-02 A1O = E-O1-2.5O29E E-O E-O2 A12 = E-O E-O E E-O2 A14 = -1582E-O E E-O E-O E--O1-1634OE-O E-O2 -SSOS6E-O E E E-OS -4.3OO6E--OO E-O E-O E E-O OE E In the optical image system according to the 6th embodiment, the definitions off, Fno, HFOV,V1,V2, V4, V5, R7, R8, CT2, CT3, f1, f2, f3 and f4 are the same as those stated in the 1st embodiment with corresponding values for the 6th embodiment. Moreover, these parameters can be cal culated from Table 11 and Table 12 as the following values and satisfy the following relationships: f(mm) 2.88 (R7 - R8)/(R7+ R8) Fno 2.00 ff2 O.32 HFOV (deg.) 42.5 fif3 - ffa 1.88 V1/V (f1 - f3)/(f1 + f3) 0.77 VSFV (f2 - f3)/(f2 + f3) O.43 CT2/CT3 O.S6 7th Embodiment FIG. 13 is a schematic view of an optical image lens system according to the 7th embodiment of the present dis closure. FIG. 14 shows spherical aberration curves, astig matic field curves and a distortion curve of the optical image lens system according to the 7th embodiment. In FIG. 13, the optical image lens system includes, in order from an object side to an image side, an aperture stop 700, a first lens element 710, a second lens element 720, a third lens element 730, a fourth lens element 740, a fifth lens element 750, a sixth lens element 760, an IR-cut filter 780 and an image plane ) The first lens element 710 with positive refractive power has a convex object-side surface 711 and a convex image-side surface 712. The first lens element 710 is made of plastic material and has the object-side surface 711 and the image-side Surface 712 being aspheric The second lens element 720 with positive refrac tive power has a convex object-side surface 721 and a concave image-side surface 722.The second lens element 720 is made of plastic material and has the object-side surface 721 and the image-side surface 722 being aspheric. I0136. The third lens element 730 with positive refractive power has a concave object-side surface 731 and a convex image-side surface 732. The third lens element 730 is made of plastic material and has the object-side surface 731 and the image-side Surface 732 being aspheric. I0137 The fourth lens element 740 with negative refractive power has a concave object-side Surface 741 and a convex image-side surface 742. The fourth lens element 740 is made of plastic material and has the object-side surface 741 and the image-side Surface 742 being aspheric. ( The fifth lens element 750 with positive refractive power has a convex object-side surface 751 and a convex image-side surface 752. The fifth lens element 750 is made of plastic material and has the object-side surface 751 and the image-side surface 752 being aspheric. ( The sixth lens element 760 with negative refractive power has a convex object-side Surface 761 and a concave image-side surface 762. The sixth lens element 760 is made of plastic material and has the object-side surface 761 and the image-side surface 762 being aspheric. Furthermore, the sixth lens element 760 has inflection points on the image-side Surface 762 thereof The IR-cut filter 780 is made of glass, and located between the sixth lens element 760 and the image plane 770, and will not affect the focal length of the optical image lens system The detailed optical data of the 7th embodiment are shown in Table 13 and the aspheric surface data are shown in Table 14 below.

32 US 2013/ A1 13 Oct. 24, 2013 TABLE 13 7th Embodiment f = 3.01 mm, Fno = HFOV = 41.0 deg. Surface # Curvature Radius Thickness Material Index O Object Plano Infinity 1 Ape. Stop Plano -O.OSS 2 Lens (ASP) Plastic (ASP) O.O60 4 Lens (ASP) Plastic 6SO (ASP) O Lens (ASP) Plastic (ASP) O Lens (ASP) Plastic 6SO (ASP) O.OSO 10 Lens (ASP) Plastic (ASP) O.OSO 12 Lens (ASP) Plastic (ASP) O.7OO 14 IR-cut filter Plano Glass Plano O Image Plano Abbe # Focal length 55.9 S Note: Reference wavelength (d-line) is mm. TABLE 1.4 Aspheric Coefficients Surface # k = E--OO E--O E E--O1 A4 = E-O E-O E-O OE-O1 A6 = E-O SE-O E-O E-O1 A8 = E--OO E E--OO E-O1 A1O = 12828E--OO E--OO E--OO 1.7OO1E-O1 A12 = 2.028SE-OO E-O1 1.45OOE-O2-2.7OO7E-O1 A14 = E--OO E-O E--OO E-O1 Surface # -1.OOOOE--OO E-O E-O E-O E-O E-O E-O E-O E-O E O16E-O E-O E E k = E--OO E--OO E-O E--OO A4 = E-O E-O E OE-02 A6 = E-O E-O1 1517OE-O E-O2 A8 = 1.138OE E-O E-O E-O1 A1O = OE-O E-O1 14O72E-O E-O2 A12 = S.9689E E E-O E-O2 A14 = E-O E-O E E-03-1.OOOOE--OO -1538OE-O E-O E-O3 S.7624E E E-OS -4.18O2E--OO E-O E-O E E E-04 8.OO21E in the optical image system according to the 7th embodiment, the definitions off, Fno, HFOV,V1,V2, V4, V5, R7, R8, CT2, CT3, f1, f2, f3 and 14 are the same as those stated in the 1st embodiment with corresponding values for the 7th embodiment. Moreover, these parameters can be cal culated from Table 13 and Table 14 as the following values and satisfy the following relationships: 8th Embodiment FIG. 15 is a schematic view of an optical image lens system according to the 8th embodiment of the present dis closure. FIG. 16 shows spherical aberration curves, astig matic field curves and a distortion curve of the optical image lens system according to the 8th embodiment. In FIG. 15, the optical image lens system includes, in order from an object side to an image side, an aperture stop 800, a first lens element 810, a second lens element 820, a third lens element 830, a fourth lens element 840, a fifth lens element 850, a sixth lens element 860, an IR-cut filter 880 and an image plane The first lens element 810 with positive refractive power has a convex object-side Surface 811 and a concave image-side surface 812. The first lens element 810 is made of plastic material and has the object-side surface 811 and the image-side Surface 812 being aspheric.

33 US 2013/ A1 14 Oct. 24, The second lens element 820 with positive refrac tive power has a convex object-side Surface 821 and a concave image-side surface 822. The second lens element 820 is made of plastic material and has the object-side surface 821 and the image-side Surface 822 being aspheric The third lens element 830 with positive refractive power has a convex object-side surface 831 and a convex image-side surface 832. The third lens element 830 is made of plastic material and has the object-side surface 831 and the image-side Surface 832 being aspheric The fourth lens element 840 with negative refractive power has a concave object-side Surface 841 and a convex image-side surface 842. The fourth lens element 840 is made of plastic material and has the object-side surface 841 and the image-side Surface 842 being aspheric The fifth lens element 850 with positive refractive power has a convex object-side surface 851 and a convex image-side surface 852. The fifth lens element 850 is made of plastic material and has the object-side surface 851 and the image-side Surface 852 being aspheric The sixth lens element 860 with negative refractive power has a planar object-side Surface 861 and a concave image-side surface 862. The sixth lens element 860 is made of plastic material and has the object-side surface 861 and the image-side surface 862 being aspheric. Furthermore, the sixth lens element 860 has inflection points on the image-side surface 862 thereof The IR-cut filter 880 is made of glass, and located between the sixth lens element 860 and the image plane 870, and will not affect the focal length of the optical image lens system The detailed optical data of the 8th embodiment are shown in Table 15 and the aspheric surface data are shown in Table 16 below. TABLE 1.5 8th Embodiment f = 2.98 mm. Fino = HFOV = 39.6 deg. Focal Surface # Curvature Radius Thickness Material Index Abbe # length O Object Plano Infinity 1 Ape. Stop Plano -O.O69 2 Lens (ASP) Plastic (ASP) O.O86 4 Lens (ASP) Plastic (ASP) O Lens (ASP) Plastic (ASP) O Lens (ASP) Plastic (ASP) O.O3S 10 Lens (ASP) Plastic (ASP) O Lens 6 ce (ASP) Plastic (ASP) O.6OO 14 IR-cut filter Plano Glass S Plano O Image Plano Note: Reference wavelength (d-line) is mm. TABLE 16 Aspheric Coefficients Surface # k = E--OO -2.OOOOE--O E--OO E--OO -2.OOOOE--O E--OO A4 = -1908OE-O2-1.4O2(OE-O E-O OE E-O E-O2 A6 = 2.804OE-O E-O E-O E-O E-O E-O1 A8 = E-O E-O OE--OO E-O E-O E-O2 A1O = E-O E SE-O E-O OSE-O E-O2 A12 = 20138E--OO E-O E-O E-O E-O E-03 A14 = E--OO E-O E--OO E OE E-03 Surface # k = -1.8O84E--OO E E--OO E--OO -1.OOOOE E--OO A4 = E-O E-O OE-O E-O E-O E-O2 A6 = E-O E-O E-O E-O2 3.77O2E-O E-02 A8 = E--OO E-O E E-O E-O E-03 A1O = -9.2OO8E-O OE-O E-O E-O E-O E-03 A12 = 5.88S1E-O E E E-O E E-OS A14 = E-O SE-O2 2014OE E-O E SO3E-06

34 US 2013/ A1 Oct. 24, In the optical image system according to the 8th embodiment, the definitions off, Fno, HFOV,V1,V2, V4, V5, R7, R8, CT2, CT3, f1, f2, f3 and 141 are the same as those stated in the 1st embodiment With corresponding values for the 8th embodiment. Moreover, these parameters can be cal culated from Table 15 and Table 16 as the following values and satisfy the following relationships: f(mm) 2.98 (R7 - R8)/(R7+ R8) Fno 2.50 ff2 O.40 HFOV (deg.) 39.6 fif3 - ffa 1.79 V1/V (f1 - f3)/(f1 + f3) O.80 VSFV (f2 - f3)/(f2 + f3) O.32 CT2/CT th Embodiment 0153 FIG. 17 is a schematic view of an optical image lens system according to the 9th embodiment of the present dis closure. FIG. 18 shows spherical aberration curves, astig matic field curves and a distortion curve of the optical image lens system according to the 9th embodiment. In FIG. 17, the optical image lens system includes, in order from an object side to an image side, an aperture stop 900, a first lens element 910, a second lens element 920, a third lens element 930, a fourth lens element 940, a fifth lens element 950, a sixth lens element 960, an IR-cut filter 980 and an image plane ) The first lens element 910 with positive refractive power has a convex object-side surface 911 and a concave image-side surface 912. The first lens element 910 is made of glass material and has the object-side surface 911 and the image-side Surface 912 being aspheric. (O155 The second lens element 920 with positive refrac tive power has a convex object-side surface 921 and a concave image-side surface 922. The second lens element 920 is made of plastic material and has the object-side surface 921 and the image-side Surface 922 being aspheric The third lens element 930 with positive refractive power has a concave object-side surface 931 and a convex image-side surface 932. The third lens element 930 is made of plastic material and has the object-side surface 931 and the image-side Surface 932 being aspheric. (O157. The fourth lens element 940 with negative refractive power has a concave object-side Surface 941 and a convex image-side surface 942. The fourth lens element 940 is made of plastic material and has the object-side surface 941 and the image-side Surface 942 being aspheric The fifth lens element 950 with positive refractive power has a concave object-side surface 951 and a convex image-side surface 952. The fifth lens element 950 is made of plastic material and has the object-side surface 951 and the image-side surface 952 being aspheric The sixth lens element 960 with negative refractive power has a convex object-side surface 961 and a concave image-side surface 962. The sixth lens element 960 is made of plastic material and has the object-side surface 961 and the image-side surface 962 being aspheric. Furthermore, the sixth lens element 960 has inflection points on the image-side Surface 962 thereof The IR-cut filter 980 is made of glass, and located between the sixth lens element 960 and the image plane 970, and will not affect the focal length of the optical image lens system The detailed optical data of the 9th embodiment are shown in Table 17 and the aspheric surface data are shown in Table 18 below. TABLE 17 9th Embodiment f = 3.24 mm, Fno = 2.45, HFOV = 40.2 deg. Focal Surface # Curvature Radius Thickness Material Index Abbe # length O Object Plano Infinity 1 Ape. Stop Plano Lens (ASP) Glass (ASP) O.O76 4 Lens (ASP) Plastic (ASP) Lens (ASP) Plastic (ASP) O Lens (ASP) Plastic (ASP) O.OSO 10 Lens (ASP) Plastic (ASP) O.OS6 12 Lens (ASP) Plastic (ASP) O.7OO 14 R-cut filter Plano Glass S Plano O mage Plano Note: Reference wavelength (d-line) is mm.

35 US 2013/ A1 16 Oct. 24, 2013 TABLE 1.8 Aspheric Coefficients Surface # k = E E-O E E--OO A4 = E E E-O E-O1 A6 = 3.SO85E S1E-01 S.7514E-O E-01 A8 = E--OO E E--OO E-O1 A1O = E E--OO 112SOE--OO 112O1E-O1 A12 = E--OO E E OO1E-O1 A14 = E E-O E--OO 1111 OE-O1 Surface # -1.OOOOE--OO E-O1-8.73OOE-O E-O1-1.3O86E-O E-O E-O1 28O14E-O E-O E E-O E-O E S2E k = E--OO OE E E--OO A4 = E-O E-O1-1.72O4E-O E-O2 A6 = E-O E-O E-O E-O2 A8 = 11222E--OO E-O E-O E-O1 A10 = E-O E-O E-O E-O2 A12 = 6.007OE-O E E-O E-O2 A14 = E-O OE-O2 2.OOS2E-O E-03-1.OOOOE--OO E-O OE-O E-03 S.9497E O7E E-OS E--OO E-O E-O E-03 1.O3O4E-O E-04 S.S361E In the optical image system according to the 9th embodiment, the definitions off, Fno, HFOV,V1,V2, V4, V5, R7, R8, CT2, CT3, f1, f2, f3 and f4 are the same as those stated in the 1st embodiment with corresponding values for the 9th embodiment. Moreover, these parameters can be cal culated from Table 17 and Table 18 as the following values and satisfy the following relationships: f(mm) 3.24 (R7 - R8)/(R7+ R8) Fno 2.45 ff2 O.08 HFOV (deg.) 40.2 fif3 - ffa 186 V1/V (f1 - f3)/(f1 + f3) O.20 CT2/CT3 O It will be apparent to those skilled in the art that various modifications and variations can be made to the struc ture of the present invention without to departing from the Scope or spirit of the invention. In view of the foregoing, it is intended that the present invention cover modifications and variations of this invention provided they fall within the scope of the following claims. What is claimed is: 1. An optical image lens system comprising, in order from an object side to an image side: a first lens element with positive refractive power having a convex object-side Surface; second lens element with positive refractive power; a third lens element with positive refractive power; a fourth lens element with refractive power; a fifth lens element with positive refractive power having a convex image-side Surface, wherein at least one of an object-side Surface and the image-side Surface of the fifth lens element is aspheric; and a sixth lens element with negative refractive power having a concave image-side Surface, wherein at least one of an object-side Surface and the image-side Surface of the sixth lens element is aspheric, and the sixth lens element has at least one inflection point on the image-side Surface thereof; wherein a focal length of the optical image lens system is f. a focal length of the second lens element is f2, and the following relationship is satisfied: 2. The optical image lens system of claim 1, wherein the focal length of the optical image lens system is f, a focal length of the third lens element is f3, a focal length of the fourth lens element is f4, and the following relationship is satisfied: 3. The optical image lens system of claim 1, wherein the fourth lens element has negative refractive power, a curvature radius of an object-side surface of the fourth lens element is R7, a curvature radius of an image-side surface of the fourth lens element is R8, and the following relationship is satisfied: 4. The optical image lens system of claim 2, wherein the third lens element has a convex image-side Surface. 5. The optical image lens system of claim 2, wherein a central thickness of the second lens element is CT2, a central thickness of the third lens element is CT3, and the following relationship is satisfied: 6. The optical image lens system of claim 3, wherein an Abbe number of the fourth lens element is V4, an Abbe number of the fifth lens element is V5, and the following relationship is satisfied: 7. The optical image lens system of claim3, whereina focal length of the first lens element is f1, a focal length of the third lens element is f3, and the following relationship is satisfied:

36 US 2013/ A1 Oct. 24, The optical image lens system of claim 7, wherein the first through sixth lens elements are made of plastic material, and the object-side Surfaces and the image-side Surfaces of the first through sixth lens elements are aspheric. 9. The optical image lens system of claim 3, wherein the first lens element has a concave image-side Surface, and the second lens element has a convex object-side Surface and a concave mage-side Surface. 10. The optical image lens system of claim 4, wherein an Abbe number of the first lens element is V1, an Abbe number of the second lens element is V2, and the following relation ship is satisfied: 11. The optical image lens system of claim 1, wherein the focal length of the optical image lens system f, the focal length of the second lens element is f2, and the following relationship is satisfied: 12. The optical image lens system of claim 1, wherein a curvature radius of an object-side surface of the fourth lens element is R7, a curvature radius of an image-side Surface of the fourth lens element is R8, and the following relationship is satisfied: 13. An optical image lens system comprising, in order from an object side to an image side: a first lens element with positive refractive power having a convex object-side Surface; a second lens element with positive refractive power; a third lens element with positive refractive power; a fourth lens element with negative refractive power having a concave object-side Surface and a convex mage-side Surface; a fifth lens element with positive refractive power having a convex image-side Surface, wherein at least one of an object-side Surface and the image-side Surface of the fifth lens element is aspheric; and a sixth lens element with negative refractive power having a concave image-side Surface, wherein at least one of an object-side Surface and the image-side Surface of the sixth lens element is aspheric, and the sixth lens element has at least one inflection point on the image-side Surface thereof; wherein a focal length of the optical image lens system is f. a focal length of the second lens element is f2, a focal length of the third lens element is f3, and the following relationships are satisfied: 14. The optical image lens system of claim 13, wherein an Abbe number of the fourth lens element is V4, an Abbe number of the fifth lens element is V5, and the following relationship is satisfied: 15. The optical image lens system of claim 13, wherein a focal length of the first lens element is fl the focal length of the third lens element is f3, and the following relationship is satisfied: 16. The optical image lens system of claim 13, wherein a curvature radius of the object-side surface of the fourth lens element is R7, a curvature radius of the image-side surface of the fourth lens element is R8, and the following relationship is satisfied: 17. The optical image lens system of claim 13, wherein the focal length of the optical image lens system is f, the focal length of the second lens element is f2, and the following relationship is satisfied: 18. The optical image lens system of claim 17, wherein the first lens element has a concave image-side Surface, and the second lens element has a convex object-side Surface and a concave mage-side Surface. 19. An optical image lens system comprising, in order from an object side to an image side: a first lens element with positive refractive power having a convex object-side Surface; a second lens element with positive refractive power; a third lens element with positive refractive power; a fourth lens element with negative refractive power having a concave object-side surface and a convex image-side Surface; a fifth lens element with positive refractive power having a convex image-side surface, wherein at least one of an object-side Surface and the image-side Surface of the fifth lens element is aspheric; and a sixth lens element with negative refractive power having a concave image-side Surface, wherein at least one of an object-side Surface and the image-side Surface of the sixth lens element is aspheric, and the sixth lens element has at least one inflection point on the image-side Surface thereof; wherein a focal length of the second lens element is f2, a focal length of the third lens element is f3, and the following relationship is satisfied: 20. The optical image lens system of claim 19, wherein a focal length of the optical image lens system is f, the focal length of the third lens element is f3, a focal length of the fourth lens element is f4, and the following relationship is satisfied: 21. The optical image lens system of claim 19, wherein the third lens element has a convex image-side Surface, a focal length of the first lens element is fl the focallength of the third lens element is f3, and the following relationship is satisfied: 22. The optical image lens system of claim 19, wherein a curvature radius of the object-side surface of the fourth lens element is R7, a curvature radius of the image-side surface of the fourth lens element is R8, and the following relationship is satisfied: 23. The optical image lens system of claim 20, wherein an Abbe number to of the fourth lens element is V4, an Abbe number of the fifth lens element is V5, and the following relationship is satisfied: