NEW MULTI MAG OPTICS INSIDE! 2012 APRIL edition SPECIAL EXHIBITION ISSUE

Transcription

1 NEW MULTI MAG OPTICS INSIDE! 2012 APRIL edition SPECIAL EXHIBITION ISSUE

2 PRODUCTS INDEX 03 BI-TELECENTRIC LENSES 15 LED ILLUMINATORS 16 MULTI MAG OPTICS OPTICS 34 ENTOCENTRIC LENSES 36 3D OPTICS OPTO ENGINEERING SOCIAL CHANNELS BLOG FLICKR TWITTER YOU TUBE VIMEO FACEBOOK LINKEDIN INFO 02

3 360 OPTICS PERICENTRIC LENSES are an exclusive product developed by Opto Engineering to enable 3D peripheral vision of objects without the aid of mirrors. PERICENTRIC LENSES 360 view with just 1 camera By means of this unique optical design, just one camera shot is enough to capture the top and side views of an object. The name pericentric is because of the pupil is seen from object space as if it was moving around the peripheral zone of the front optical group. KEY ADVANTAGES Just one camera: no need for multiple cameras placed around and over the object Fast image analysis: no image matching software is needed as the picture is not segmented Single point of view: no perspective effects typical of multi-image systems Smooth on-line integration: inspected parts pass unobstacled in the free space below the lens part number PC13030HP PC12030HP detector size 1/3 1/2 min. FOV (diam x height) (mm x mm) 20x60 20x60 typ. FOV (diam x height) (mm x mm) 30x30 30x30 max. FOV (diam x height) (mm x mm) 60x20 60x20 wavelength range (nm) working distance (mm) lp/mm (%) > 30 > 25 f-number diameter (mm) length (mm) weight (g) mount C C 20

4 PERICENTRIC LENSES 360 OPTICS Pericentric lenses are designed to work with 1/2 and 1/3 detectors. The choice of such detectors grants the height W.d. diameter by high resolution 3D pericentric imaging. The image of the front surface of the object and its sides are inscribed into the short side of the camera detector. The smaller the object diameter, the larger the object height which can be inspected, while thin objects can be inspected over a larger diameter. height diameter detector short side The table below shows possible combinations of object diameters and heights along with the appropriate working distance and recommended F-number. The r parameter is the ratio between the lateral view size (the circular crown thickness) and the vertical side of the detector, thus providing accurate information on the image geometry and the side view resolution. r (%) = height/detector short side PC13030H diameter height w.d. F/# r height w.d. F/# r height w.d. F/# r height w.d. F/# r height w.d. F/# r height w.d. F/# r (mm) (mm) (mm) % (mm) (mm) % (mm) (mm) % (mm) (mm) % (mm) (mm) % (mm) (mm) % PC12030H diameter height w.d. F/# r height w.d. F/# r height w.d. F/# r height w.d. F/# r height w.d. F/# r height w.d. F/# r (mm) (mm) (mm) % (mm) (mm) % (mm) (mm) % (mm) (mm) % (mm) (mm) % (mm) (mm) %

5 360 OPTICS PCCD Series are pericentric lenses exclusively developed and produced by Opto Engineering to enable the 360 side view imaging of small objects. Their innovative optical design, based on a catadioptric system, makes it possible to image small objects, with diameters as small as 7 mm. The sides of the object are imaged through the catadioptric system, while the top surface is directly imaged onto the center of the detector. The compactness and high resolution performances of these lenses make them the perfect choice for the inspection of components like pharmaceutical containers, plastic caps, pre-forms, bottle necks, screws and other threaded objects. CATADIOPTRIC PC LENSES 7 to 25 mm diameter pericentric imaging Sample Images taken with PCCD Series Lenses: the sides of small objects are displayed inside a circular crown on the external part of the image. The top of the object is displayed at the center of the image. KEY ADVANTAGES imaging of small objects: parts down to 7.5 mm in diameter can be imaged Very wide lateral viewing angle: object sides viewing angle approaches 45 Compactness: the lens can be easily held and integrated in any system Perfect chromatic correction: for RGB camera applications and colour inspection part number PCCD013 PCCD012 detector size 1/3" 1/2" min. FOV (diam x height) (mm x mm) 7,5 x 5 7,5 x 5 typ. FOV (diam x height) (mm x mm) 15 x x 10 max. FOV (diam x height) (mm x mm) 25 x x 17 wavelength range (nm) working distance (mm) lp/mm (%) > 35 > 30 f-number diameter (mm) length (mm) 110,5 110,5 weight (g) mount C C 22

6 CATADIOPTRIC PC LENSES 360 OPTICS heght w.d. diameter PCCD Pericentric lenses can work either with 1/2 and 1/3 detectors, like standard Pericentric Lenses. The sides of the object being inspected are observed over a wide view angle, approaching 45 at its maximum; this feature makes it possible to inspect complex object geometries under a convenient perspective. The image of the external walls of the object, captured thought the catadioptric system, is inscribed into the short side of the camera detector within a circular crown. On the other hand, the top of the object is directly imaged onto the central part of the detector area: both the lateral and top view of the object are in perfect focus at the same time. height diameter diameter height c (%) = diameter/detector short side detector short side The c parameter describes the dimension of the top view image: it is calculated as the ratio between the central top view diameter and the short side of the detector. The typical ratio between the object height and its diameter is 2/3, which means that, for a given object diameter (i.e. 15 mm), the recommended inspection height will be around 67% of the diameter (10 mm). However, this for different aspect ratios (up to 100%) by adjusting the lens working distance, focus and F-number. FIELD OF SELECTION CHART diameter height w.d. F/# c (mm) (mm) (mm) (%) 7,5 5, % 10 6, % 15 10, % 20 13, % 25 16, % diameter height w.d. F/# c (mm) (mm) (mm) (%) 7,5 5, % 10 6, % 15 10, % 20 13, % 25 16, % The table below shows possible combinations of object diameters and heights along with the appropriate working distance and recommended F-number ; the also listed. The optics is protected by a glass window, to prevent from the intrusion of dust and impurities into the optical system. The top of the object is imaged through a small removable window, located at the center of the lens. This optical window can be removed and replaced with other type of optics in order to compensate for the object depth, where necessary. The window s mounting thread can also 23

7 360 OPTICS HOLE INSPECTION OPTICS have been developed by Opto Engineering to enable the perfect viewing of holed objects, cavities and containers. Unlike common optics or so called pinhole HOLE INSPECTION OPTICS 360 inside view in perfect focus designed to image both the bottom of a hole and its vertical walls. Thanks to the large view angle (>82 degree) and innovative optical design, these lenses are compatible with a wide range of object diameters and thicknesses. Hole Inspection Optics are therefore the solution of choice to inspect a variety of different object shapes such as cylinders, cones, holes, bottles or threaded objects. Examples of images taken with Hole Inspection Optics: KEY ADVANTAGES Perfect focusing is maintained throughout the entire depth of a hole. Conical cavity inspection is possible from both sides Perfect focusing of holed objects: both the walls and the bottom of a cavity are imaged in high resolution Cavity inspection from the outside: no need to put an optical probe into the hole Very High Field Depth: objects featuring different shapes and dimensions can be imaged by the same lens Wide viewing angle: sample surfaces are unwrapped by the lens under a convenient perspective to clearly display their features. Writings inside a cavity, as well as scratches and tiny defects are easily imaged Common lens Hole Inspection Optics Square, polygonal or irregular cross section objects can be inspected. FOV cavity bottom cavity vertical wall 24

8 HOLE INSPECTION OPTICS 360 OPTICS height diameter r (%) = diameter/detector short side detector short side Hole Inspection optics can image cavities whose diameters and thicknesses span over a wide range of values. For a given hole diameter, the table below lists the maximum cavity height allowed for both high resolution imaging (small pixel sizes) and normal resolution imaging (> 5 micron pixels) applications; the r ratio indicates how much of the detector area gets covered by the image of the hole inner walls. The listed working distance values ensure that the object image is exactly inscribed into the short side of the detector, thus maximizing r ratio and image resolution. part number PCHI013 PCHI012 detector size 1/3" 1/2" min. FOV (diam x height) (mm x mm) 10 x x 10 max. FOV (diam x height) (mm x mm) 70 x x 100 wavelength range (nm) working distance (mm) lp/mm (%) > 40 > 40 f-number 4,7 5,8 diameter (mm) 28,0 28,0 length (mm) 102,0 104,0 weight (g) mount c c PCHI013 and PCHI012: FIELD OF SELECTION CHART hole high res. Imaging normal res. Imaging working diameter cavity r cavity r distance height ratio height ratio (mm) (mm) (%) (mm) (%) (mm) , ,5 28 6, height w.d. diameter 25

9 360 OPTICS BOROSCOPIC PROBES are used to inspect holed objects such as engine parts, containers and tubes whose hidden features can only be controlled by introducing a probe into the cavity. BOROSCOPIC PROBE Panoramic cavity imaging and measurement from inside optical design ensures much higher enables a complete 360 inner view throughout the entire cavity length. Boroscopic Probes are intended to be handled by a Robot Arm or S.C.A.R.A. in order to scan even the deepest cavities. Built-in illumination keeps the device very compact and makes it suitable for simple by means of panoramic triangulation techinques. Examples of images taken with a Boroscopic Probe: KEY ADVANTAGES Inspection of holed parts of an engine Inspection of cavities from inside: hidden internal features and defects are cleary viewed High Resolution: the catadioptric design enables the detection of tiny defects over a very wide view angle 3D measurement capability: deformation and Tube scanning for integrity inspection 4 Surface defect enhancement: mixing direct and indirect illumination makes it possible to emphasize tiny and scarcely visible defects. Defect and impurities detection inside containers Rubber sealings control for leak prevention 26

10 360 OPTICS Inspection Area diameter height (mm) (mm) BOROSCOPIC PROBES can image cavities whose diameter ranges from 25 mm to 100 mm and over: the table on the left shows the inspection range allowed. An integrated LED engine illuminates the cavity both diffusely and directly (specular illumination). The diagram below shows the different illumination areas. The diffused illumination is used for defect detection and component inspection. The direct/specular illumination can The image of the cavity covers around 50% of the detector height; the continuous red line indicates the bottom view of the cavity (-22.5 ), the dashed line shows the upper view (+37.5 ) while the dash-dotted line refers to the lateral view (0 ). ve objects as well as to measure the hole diameter. Ø 21 Specular/3D area Max. Height. 53 mm min. heig ht. 9 mm min. diam. 25 mm Max. Diam. 100 mm + 37,5 0-22,5 part number PCBP013 PCBP012 detector size 1/3" 1/2" min. FOV (diam x height) (mm x mm) 25 x 9 25 x 9 max. FOV (diam x height) (mm x mm) 100 x x 53 wavelength range (nm) wiewing angle (deg) lp/mm (%) > 25 > 20 f-number diameter (mm) 21,0 21,0 length (mm) 167,0 137,0 weight (g) mount c c LED voltage (volt) LED power (watt) <2,0 <2,0 27 The LED illumination device is integrated into the unit. The optical tip of the probe can be easily replaced in case of damage. The best focus is achieved by means of a lockable focusing mechanism. Power supply cables exit the device nearby the device s C-mount.

11 360 OPTICS PolyView Lenses provide 8 different views of the side and top surfaces of an object. A wide perspective angle (45 ) makes these components suitable for the inspection of the side features of an object (i.e. the threads of a screw or a nut) otherwise impossible to image with a single camera. Both the external walls of an object and its top can be imaged at the same time. Internal surfaces of holed objects can be completely inspected from the outside. A combined view of the internal and external surfaces is possible and an image displaying both the inner walls and the bottom of a cavity can be obtained. In addition to these unique features, PolyView Optics also grant a very high image resolution and very good image brightneess. POLY OPTICS Multiple side views with one shot KEY ADVANTAGES Just one camera: no need for multiple cameras placed around and over the object Wide viewing angle: 45 object sides view makes visible features hidden when viewed from top Complete surface inspection: both inner and outer object surfaces can be imaged in one shot Very High Resolution: even the tiniest defects can be detected part number PCPW013 PCPW012 PCPW023 detector size 1/3" 1/2" 2/3" max. object diameter for SIDE inspection: with object height 20 mm (mm) with object height 5 mm (mm) max. object diameter for SIDE + TOP inspection: with object height 10 mm (mm) wavelength range (nm) working distance (mm) lp/mm (%) > 60 > 50 > 40 f-number diameter (mm) length (mm) weight (g) mount C C C 28

12 POLY OPTICS 360 OPTICS max w.d. 44 mm min w.d. 20 mm mm 22 mm IMAGE ON CAMERA DETECTOR The diagram below shows how PolyView Optics image a cylindrical object. The object is observed at a 45 viewing angle, from 8 different points of view. Eight different trapezoidal Fields of View are obtained: all the object features included in such a trapezoid will be imaged on the corresponding image portion. 45 viewing angle allows for imaging both the sides of a cylindrical object and its top; if the object is a hollow cylinder (hole or cavitiy), the inner wall of the cavity will be imaged instead of the top, thus enabling both outer and inner sides inspection. object diameter object height 33 mm FIELD OF object diameter object height h = 20 mm Ø 30 mm h = 5 mm Ø 50 mm h = 10 mm Ø 30 mm MAXIMUM FIELD OF In order to perform a complete 360 inspection, each of the 8 image portions should image at least 1/6 of the cylindrical surface; this condition ensures a good overlapping between two different lateral views, since part of the object features will be shared by two neighbouring image portions. When the object height is maximum (20 mm) up to 30 mm diameter objects can be inspected Up to 50 mm diameter objects can be inspected, provided their thickness doesn t exceed 5 mm. Combined view of both the inner sides and the bottom of a cavity possible up to 30 mm diameter and 10 mm height. part number LTRNO50W45 light colour white, 6300 K dimensions outer diameter (mm) 54,0 inner diameter (mm) 28,0 height (mm) 18,3 weight (g) 30 mount threaded retaining ring voltage (V, DC) 24 power watt 3 compatible PC lenses PCPWOxx, PCHIOxx other compatible lenses TC230x, MC3-03X LTRN050W45 is a small LED ring illuminator compatible with different OE products and suitable for a variety of inspections. This illuminator is also perfectly suitable for illuminating the inner sides of a cavity imaged by a PolyView Lens; the illuminator flange is threaded to fit PolyView innner mounting interface. 29

13 360 OPTICS Micro-PolyView is a 3D, multi-image lens designed to completely measure and inspect objects whose dimensions range from 1 to 10 millimeters, such as electronic components, solder paste and micro-mechanics. Six different lateral views are provided by an array of mirrors interfaced to a bitelecentric lens; the top of the object is MICRO-POLY 3D measurement and imaging of small parts of view. The lateral views feature exactly the same perfect focus even when the object is displaced from its nominal position. All the views can be used to precisely measure the dimension of components from different angles. Micro-PolyView integrates LED illumination with the most appropriate lighting geometry for this optical KEY ADVANTAGES 1 2 Small parts lateral imaging: inspection of objects whose size ranges from 1 to 10 mm Measurement capability: the top and the lateral 3 H part decentering can be tolerated part number PCMP012 PCMP023 detector size 1/2" 2/3" max inspection height with diameter 2.5 mm 6 6 max inspection height with diameter 5 mm 4,5 4,5 max inspection height with diameter 7.5 mm 3 3 max inspection height with diameter 10 mm 1 1 wavelength range (nm) working distance (mm) 1, , lp/mm (%) > 40 > 40 f-number 8 8 diameter (mm) length (mm) weight (g) mount C C 30

14 MICRO-POLY 360 OPTICS Mechanical components inspection: thread integrity, pitch measured. SIDE 1.0 TOP 10.0 SIDE SIDE 3.0 TOP 7.5 S SID SIDE The suggested working distance ranges from 1.5 to 7.5 mm. The best focusing can be achieved by adjusting the number of spacers in the C-mount interface or by vertically positioning the illuminator+mirror assembly. The image orientation phase can be adjusted by simply rotating the mirror cage or the whole assembly. The top and side views show exactly the SIDE S TOP SIDE S TOP SIDE S views appear to be compressed because of the perspective angle. Thanks to telecentric imaging such compression is purely linear and therefore very easy to compensate. SMD component inspection: integrated circuit position, rotation, pin integrity and bonding can be checked. SIDE TOP 5.0 SIDE SIDE S SIDE TOP 5.0 SIDE Customized versions available with: - different number of views - different mirror inclination angles - asymmetric or special mirror arrays are possible and easily manufacturable Electronic connector checking: presence/absence, alignment and length of pins can be precisely measured. 4.5 SIDE S 6.0 SIDE S SIDE S TOP SIDE S TOP LED quality control: lens scratches, die centering and correct wiring can be inspected and measured. 31

15 360 OPTICS The TCCAGE is an integrated optomechanical system designed to fully inspect and measure parts from their side without any need of rotation.four orthonormal views of an object are provided by a telecentric lens through an array of mirrors. The optical path is designed so that the displacement angle between the views is exactly 90 ; this optical layout ensures complete coverage of the object lateral surface. Furthermore, telecentric imaging makes the system insensitive to part decentering and therefore suitable for measurement applications. The TCCAGE is the perfect solution for inspecting parts whose features would be hidden when looked at from the top and for all those applications where an object must be inspected or measured from different sides. Two different illumination devices are built into the device to provide either backlight or direct part illumination. TCCAGE Multiple side imaging and measurement at 90 KEY ADVANTAGES lateral imaging: the 4 orthonormal views allow visualization of object features that are hidden when looked at from the top Long and thin object inspection: the characterilong and thin stic aspects ratio of the 4 image segmets perfectly fits objects Built-in illumination: the device also incorporates two different light sources, for back and direct illumination Suitable for measurement: the telecentric optics makes this module perfect for any multiple-measurement application. part number TCCAGE1248 TCCAGE2348 TCCAGE1296 TCCAGE2396 detector size 1/2" 2/3" 1/2" 2/3 max. object diameter (mm) max. object height (mm) wavelength range (nm) lp/mm (%) > 40 > 40 > 40 > 40 f-number width (mm) length (mm) 192,8 192, height (mm) weight (g) mount C C C C Ring Illumination Voltage (V, DC) Ring Illumination Power (watt) Coax. Illumination Voltage (V, DC) Coax. Illumination Power (watt)

16 TCCAGE 360 OPTICS WORKING PRINCIPLE A telecentric lens observes the object from 4 different positions through a mirror assembly, ensuring that the optical path is the same for all 4 view points. The 4 views are equally spaced every 90 and partially overlapped, obtaining complete coverage of the object lateral surfaces. The system can thus tolerate component decentering without any thanks to the telecentric optics, which each image segment. The system is designed so as to allow components to pass unobstacled through the mirror cage, for in-line applications. ILLUMINATION GEOMETRY The TCCAGE integrates both direct and backlight illumination devices. Direct illumination (red cone in the drawing) is provided by a ring illuminator placed on the top of the part and can be used to enhance surface defects. Back lighting (indicated by the blue arrows) is obtained by means of a diffusive source which illuminates the object through the mirror system; this type of illumination is suggested for measurement purposes or to inspect transparent objects. ADDITIONAL PORT The TCCAGE is provided with a 28 mm diameter hole, placed right above the object. This port can be used to inspect the top of the part by means of an additional lens and camera system (i.e. a Hole Inspection Lens, a Macro or a Telecentric lens). The aperture can also host other types of illuminators. 33

17 LT RN SERIES Ring Illuminators designed for OE telecentric and 360 lenses LED ILLUMINATORS LTRN Series are LED ring illuminators specifically designed to fit Opto Engineering s Telecentric Lenses and 360 optics. Every illuminator is equipped with a mechanical interface which makes it very easy to mount it on different types of OE lenses. The illumination geometry of each of these devices proved to be the best fit for most common applications of the lenses they have been designed to match. light dimensions pow. ratings compatible lenses part number colour, peak wavelength 360 optics ring illuminators outer diameter (mm) inner diameter (mm) height (mm) voltage (V, DC) power (watt) telecentric lenses 360 optics other optics LT RN 050 W 45 white,6300k 53, ,5 n.a. PCPW0xx,TCCAGExx48 MCx.xxX LT RN 075 W 45 white,6300k 75, TC230x,TC2312,TC4M0x PCHI01x,TCCAGExx96 MC3-03X LT RN 165 W 45 white,6300k , n.a. PCCD01x n.a. LT RN 245 W 25 white,6300k n.a. PC1x030HP n.a. LT RN 245 W 35 white,6300k n.a. PCCD01x n.a. LT RN 245 W 45 white,6300k n.a. PCPW0xx n.a. telecentric lenses ring illuminators LT RN 23 NW white,6300k TC230x,TC2312,TC4M0x n.a. MC3-03X LT RN 16 NW white,6300k 120,6 37, TCxx16,TCxM16 n.a. TCSM016 LT RN 24 NW white,6300k 120, TCxx24,TCxM24 n.a. TCSM024 LT RN 36 NW white,6300k TCxx36,TCxM36,TC16M036 n.a. TCSM036 LT RN 48 NW white,6300k TCxx48,TCxM48,TC16M048 n.a. TCSM048 LT RN 56 NW white,6300k TCxx56,TCxM56,TC16M056 n.a. TCSM056 LT RN 64 NW white,6300k TCxx64,TCxM64,TC16M064 n.a. TCSM064 LT RN 80 NW white,6300k TCxx80,TC2372,TCxM80,TC4M72,TC16M080 n.a. TCSM080 LT RN 96 NW white,6300k TCxx96,TC2385,TCxM96,TC4M85,TC16M096 n.a. TCSM096 LT RN 120NW white,6300k TCxx120,TC23110,TCxM120,TC4M110,TC16M120 n.a. n.a. LT RN 144 NW white,6300k TCxx144,TC23130,TCxM144,TC4M130,TC16M144 n.a. n.a. KEY ADVANTAGES LTRN illuminator series coupled with TCZR Series Mechanically Fitting OE optics: each lens integrates specific mechanical interfaces Specific Illumination Geometry: illumination path matches OE lenses viewing angle and numerical aperture High Performance to Price ratio: cost-effectiveness without quality compromises 15

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