Geltech Aspheric Lenses

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1 High quality optical glass lenses Custom designs available Numerical aperture up to 0.83 Diameters from mm to 25.0 mm Diffraction-limited performance Available in standard and custom housings For today s sophisticated and compact laser systems, aspheres are the most powerful lenses for managing laser light. In these systems, spherical aberration is the most prevalent performance detractor. It arises from the use of spherical surfaces and artificially limits focusing and collimating accuracy. Although it has been known for centuries that spherical geometry is not optimal for refracting light, the expense of fabricating nonspherical (aspheric) surfaces has inhibited their use. With the breakthrough of LightPath s glass molding technology, this optimal lens geometry has become a reality. Spherical vs Aspherical Lens Systems Spherical System Aspheric Lens Working Distance Center Thickness Aspheres provide elegant single-element simplicity Molded lenses are used in a variety of photonics products: barcode scanners, laser diode to fiber couplings, optical data storage, and medical lasers, to name a few. In many of these applications, the material of choice is optical glass because of its durability and performance stability over a wide environmental range. High power transmittance is also an added advantage. Laser Window Edge Thickness Clear Aperture Outer Diameter The benefits of glass molding technology become apparent when traditional methods of grinding and polishing become cost-prohibitive. The direct molding process eliminates the need for any grinding or polishing, offering aspheric lenses at practical prices for system designers. Molding is the most consistent and economical way to produce aspheres in large volumes. Small and lightweight, our aspheres collimate or focus light as a single element. This means less complex systems, fewer alignment requirements, less re-work and shorter assembly time. Our aspheres are molded; therefore the lenses have excellent piece-to-piece uniformity. They are made of glass, which is the most durable optical material available, capable of withstanding repeated cleaning and performing at specification despite extreme temperature and moisture variations. Guaranteed Performance LightPath s aspheric lenses are inspected and optically tested to ensure complete customer satisfaction. Visual cosmetic inspection is preformed on 100% of all lenses per MIL-PRF-13830B with a scratch/dig spec of 40/20. Other inspection criteria including 80/40 and 20/10 can be provided upon request. Typical Tolerances ± mm ± mm ± 1% ± 1% of EFL Optical performance is guaranteed by test methods utilizing mm interferometer measuring transmitted RMS wavefront error listed in the individual lens specification. LightPath can also perform customized optical tests in order to screen for specific application criteria. 8

2 Optical Performance The primary optical specification is the root-mean-squared transmitted wavefront error (RMS WFE). It is measured on a phase shift interferometer at the wavelength of nm. Most of our lenses are guaranteed to be diffraction limited, which means the RMS WFE < λ at the design wavelength. Numerical Aperture Lens Holders Several of our catalog lenses are available pre-mounted in metal holders. Using our unique Mold-In-Place (MIP) technology, we can actually mold the lens directly inside of a steel holder, eliminating the need for adhesives in your package. We can epoxy our lenses into Stainless Steel or Kovar mounts so you can weld them directly into your system. Our molded aspheric lenses are available with numerical apertures ranging from 0.15 up to Lower NAs are best when a large depth of focus is important or when you need nearly circular beams. Examples of applications that would use a low numerical aperture are bar code scanners, surveying instruments, and small weapons sights. High numerical aperture lenses are important when you need to focus light down to a small spot size or when you need the maximum light capture from a diode laser. High numerical aperture applications include data storage and industrial printing. Aspheric Optics Shapes and Sizes LightPath aspheric lenses are typically plano-convex or bi-convex, with diameters as large as 25 mm or as small as mm. LightPath has the capability to dice the lenses to specified shapes for easier mounting. Custom Aspheres Our catalog details 53 standard types of available aspheric lenses. If you do not see a lens that fits your particular application, we would be happy to design one for you. Our sales and engineering teams work closely together to assist you in design, prototyping, and production of custom glass aspheric lenses. LightPath offers custom lens solutions for high volume manufacturing at prices equal to those of standard off-the-shelf lenses. We pride ourselves on being the fastest custom lens designers in the industry. When determining specifications for custom aspheric lenses, the following parameters are typically used to specify lens performance. A LightPath product expert would be happy to discuss the following list of parameters with you to determine the appropriate lens for your application. Custom Asphere Specifications Diffractive Hybrid Lenses By combining a refractive aspheric lens with a diffractive feature on one surface, you can do sophisticated beam shaping on your laser light. You can also use diffractive hybrid lenses to make your system achromatic over a range of wavelengths. LightPath hybrid lenses are custom designed to each particular application. See page 34. Wavelength Used Numerical Aperture (NA) Minimum Clear Aperture Minimum Back Focal Length Mechanical Space Constraints microns mm mm mm Application notes for choosing the right aspheric lens are also available online. Please see technicalpapers.php for more details. 9

3 Standard Glasses LightPath Technologies manufactures aspheric lenses using several different types of glass. These glasses have been fully qualified, along with the corresponding AR coating. Transmittance of all five glasses is very good over a large wavelength spectrum. Lens Code Glass Type Refractive Index Abbe Number CTE dn/dt Equivalent Glasses RoHS Compliance 350xxx C ν d = x 10-6 / C -11 x 10-6 / C Corning BCD-C2060 & Schott SK16 X 352xxx ECO ν d = x 10-6 / C 2.39 x 10-6 / C N/A 354xxx D-ZK ν d = x 10-6 / C 3.2 x 10-6 / C Hoya M-BACD5N & Ohara L-BAL35 355xxx D-ZLaF52LA ν d = x 10-6 / C 6.5 x 10-6 / C Ohara L-LAH53, Hoya M-NBFD130, Sumita K-VC89 370xxx PBH ν d = x 10-6 / C 13.1 x 10-6 / C Schott SF66, Hoya FDS1, Sumita PSFN5 X D-ZLAF52LA 355xxx Series of Lenses This glass has a higher index of refraction than ECO-550 and is best suited for those applications that require a higher index and need to maintain RoHS compliance. D-ZK3 354xxx Series of Lenses This glass is best suited for those applications that require a low cost glass for higher volume manufacturing. ECO xxx Series of Lenses New European (RoHS) and Japanese environmental regulations have restricted the use of lead and other hazardous substances in optical components. ECO-550 is an environmentally friendly alternative to conventional moldable glasses. It has similar optical properties to C-0550, but does not contain hazardous materials. C xxx Series of Lenses Corning developed a special glass to allow production of highly sophisticated aspheric lenses that are cost effective. The code for this glass is C-0550, and its low dispersion (n d = 50.40) is key for many applications. In durability, it is equivalent to Corning BCD C2060 or Schott SK16. Due to limited availability, this glass should only be used for special projects that require its unique properties. PBH71 370xxx Series of Lenses For aspheric lenses that require a glass with a higher index of refraction, LightPath also offers lenses made from Ohara PBH71 glass. Its high index (n d = ) allows designers to minimize aberrations in lenses with high numerical apertures. It has the added benefit of a lower coefficient of thermal expansion. Standard Glass Internal Transmission Curves (5 mm thickness) LightPath s capabilities include most high volume moldable glasses from Corning, Schott, Sumita, and CDGM. 10

4 Standard Anti-Reflective Coatings LightPath offers a variety of multilayer broadband coatings to reduce the back reflection from a nominal 6% for uncoated lenses. The choice of which AR coating is appropriate depends on the type of glass the lens is made from and the wavelength at which the lens will be used. Standard Coatings Lens Series Coating λ Range (µm) R MAX 352xxx, 354xxx, 355xxx MLBB-A < 1.0% 352xxx, 354xxx, 355xxx MLBB-B < 1.0% 352xxx, 354xxx, 355xxx MLBB-C < 1.0% 352xxx, 354xxx, 355xxx MLBB-M < 2.0% 370xxx MLBB-Q < 0.25% Available Coatings Lens Series Coating λ Range (µm) R MAX 352xxx MLBB-D < 0.25% 352xxx MLBB-E < 0.50% 370xxx MLBB-O < 1.0% 370xxx MLBB-P < 1.0% LightPath s rigorous qualification process ensures that all of the standard coatings will pass the abrasion and adhesion resistance requirements of ISO LightPath is happy to provide any AR coatings based on specific requirements. A Coating Reflectance (%) B Coating Reflectance (%) Typical AR Coating Curves C Coating Reflectance (%) Wavelength (nm) M Coating Reflectance (%) NOTE: Coating specification λ range = 600 µm µm. Wavelength (nm) NOTE: Coating specification λ range = 1050 µm µm Wavelength (nm) Wavelength (nm) Q Coating 1.0 Reflectance (%) Wavelength (nm) 11

5 Choosing Geltech the Aspheric Right Aspheric LensesLens For Diode Collimation One of the most common uses for aspheric lenses is in the collimation of edge emitting diode lasers. With over 35 standard lenses in LightPath s catalog to choose from, however, this can sometimes be a confusing task. The guide below will clear up some of the questions about choosing the best lens to use with a specific laser for a particular application. Due to the way that the laser cavity is constructed in edge emitting diode lasers, light is emitted in a diverging, elliptical geometry - so the divergence is typically specified in both the x and y axes separately. The axis with the larger divergence is called the fast axis and the axis with the smaller divergence is called the slow axis. When selecting a lens to collimate the laser, first consider the Numerical Aperture of the lens. If the application requires a high amount of the laser light to be coupled though the system, a lens with a high enough NA must be chosen. The NA of a lens is a measure of the maximum amount of divergence that the lens can capture from the laser. Ideally, a lens should be used that has an NA higher than the NA of the laser s fast axis. If not, the laser will clip the lens causing some of the light to be wasted. To convert the laser NA to the divergence angle (and vice-versa), use this formula: NA = n sin (φ) In most cases, n = 1 since the NA of the laser is defined in air Therefore, solving for the equation is simplified to: φ = s i n - ¹ (NA) It is important to note that φ is the half angle of the divergence cone and is given at the marginal ray (not 1/e² or half angle half max). After the minimum NA necessary for the lens is determined, next consider what beam diameter is preferred. Although ray-tracing is necessary to precisely determine the beam diameter for a given NA source with a particular lens, it can be approximated with the following formula: Beam Diameter 2 EFL NA where EFL is the effective focal length of the lens and NA is the numerical aperture of the source (not the NA of the lens). Important Note: Some laser manufacturers give the NA of the source in different terms, such as half max (50% point) or 1/e² (87% point). Whatever type of number is entered into the formula for the NA of the source will be the same type of number given for the beam diameter. For example, if the half max NA for a laser is used with the above formula, you will get the half max beam diameter. There is no simple way to convert from a half max number or a 1/e² beam diameter to a full beam diameter for a specific source because it depends on the intensity profile of the source itself. A reasonable approximation, though, for most edge emitting diode lasers is to assume a Gaussian beam profile. Using this beam profile, you can convert the beam diameters as follows: 1. To convert a half max beam diameter to a full beam diameter, multiply the diameter by To convert a 1/e² beam diameter to a full beam diameter, multiply the diameter by Remember that most edge emitting diodes are elliptical, so the beam diameter will be different in the x-axis versus the y-axis. Use the formula above to calculate the beam diameter in both axes to determine the shape of the collimated, elliptical beam. For Fiber Coupling Another common use for aspheric lenses is to couple laser light into optical fibers. Choosing the right lens or lenses to do the coupling is important to maintain high efficiency in the optical system. The guide below is intended to show how best to do this while using off-theshelf components. This guide assumes that the input laser light has already been collimated (not diverging). When selecting a lens to focus light into a fiber, first consider what focal length lens is needed. Let s revisit the formula given previously: Solving for EFL it becomes: Beam Diameter 2 EFL NA EFL Beam Diameter 2 NA where NA is the numerical aperture of the fiber that is used for the coupling. It is important to note that the EFL value that is calculated above is the minimum EFL needed to couple the light completely into the fiber. Longer EFL lenses can be used, but the spot size on the fiber tip will become larger. Therefore, it is best practice to use the shortest EFL lens possible that is larger than the minimum value specified above. 12

6 Geltech Aspheric Lenses Standard Lenses Laser Diode Collimating Lenses Lens Code NA EFL CA OD / / / / A A A / / / / Lens Code NA EFL CA OD Window Thickness none none none A A A none none none none none none none none Lens Code Laser to Fiber Coupling Lens NA (object) NA (image) MAG EFL OD

7 Fiber Collimating/Coupling Lenses Fiber to Fiber Coupling Lens Fiber Collimating FIBER FIBER Fiber Coupling Lens Code NA EFL CA OD Lens Code NA (object) NA (image) MAG EFL OD Lens Code Data Storage Objective Lenses NA EFL CA OD Media Thickness Geltech Aspheric Lens Selection Guide Numerical Aperture (NA) Focal Length A A A

8 Lens Codes and Drawing Parameter RoHS ECO-550 C nm This lens 780 has nm been Ø 3.82 Numerical Aperture (NA) mm replaced 4.20 with mm our Ø mm 4.47 mm RoHS compliant glass. The replacement 5.42 mm 5.42 mm 3.08 mm lens 1.88 code mm is Ø mm 3.44 mm Laser Window Thickness 1.20 mm mm Laser Window Material/Index Polycarbonate / Polycarbonate / Focus light into an optical disk Moderate NA for good light capture; small focused spot. Optical data storage systems A AR Coating nm B C AR Coating nm A AR Coating nm B Discontinued C AR Coating nm Lens Codes and Drawing Parameter RoHS ECO-550 C nm This lens 780 has nm been Numerical Aperture (NA) mm replaced 4.29 with mm our 3.89 mm 3.89 mm RoHS compliant glass. Ø RMS WFE Diffraction Limited The Diffraction replacement Limited Ø mm mm mm lens 1.50 code mm is Ø mm 3.07 mm Laser Window Thickness 1.20 mm mm Laser Window Material/Index Polycarbonate / Polycarbonate / Focus light into an optical disk High NA for maximum light capture; small focused spot. Optical data storage systems A AR Coating nm B C AR Coating nm A AR Coating nm B Discontinued C AR Coating nm Lens Code Drawing Parameter RoHS Ø Ø Ø 5.00 ECO nm Numerical Aperture (NA) mm 5.5 mm RMS WFE Diffraction Limited 7.20 mm mm 3.55 mm Laser Window Thickness mm Laser Window Material/Index BK7 / Collimate or focus laser light at high magnification from a laser diode. High NA for maximum light capture; large CA and long focal length for minimum beam divergence. General purpose laser diode collimation A AR Coating nm B C AR Coating nm 15

9 Lens Codes and Drawing Parameter RoHS Ø Ø Ø 4.40 ECO-550 C nm This lens 780 has nm been Numerical Aperture (NA) mm replaced 5.00 with mm our 6.24 mm 6.24 mm RoHS compliant glass. The replacement 7.20 mm 7.20 mm mm lens 3.45 code mm is 5.36 mm 5.36 mm Laser Window Thickness mm mm Laser Window Material/Index BK7 / BK7 / Collimate or focus laser light at high magnification from a laser diode. Moderate NA for good light capture; large CA for minimum beam divergence. Presentation pointers, small weapons sights, survey instruments, alignment instruments, hand held and fixed barcode scanners, medical instruments A AR Coating nm B C AR Coating nm A AR Coating nm B Discontinued C AR Coating nm Lens Code Drawing Parameter RoHS Ø Ø Ø 5.80 ECO nm Numerical Aperture (NA) mm 6.75 mm RMS WFE Diffraction Limited 9.20 mm mm 4.00 mm Laser Window Thickness mm Laser Window Material/Index BK7 / Collimate or focus laser light at high magnification from a laser diode. High NA for maximum light capture; large CA and long focal length for minimum beam divergence. General purpose laser diode collimation A AR Coating nm B C AR Coating nm Lens Code Drawing Parameter RoHS Ø Ø Ø 9.91 ECO nm Numerical Aperture (NA) mm mm RMS WFE Diffraction Limited mm mm 4.00 mm Laser Window Thickness mm Laser Window Material/Index BK7 / Collimate or focus laser light at high magnification from a laser diode. High NA for maximum light capture; large CA and long focal length for minimum beam divergence. General purpose laser diode collimation A AR Coating nm B C AR Coating nm 16

10 Lens Codes and Drawing Parameter RoHS Ø Ø Lens Codes and Ø 1.60 ECO-550 C nm This lens 780 has nm been Numerical Aperture (NA) 0.55 replaced 0.55 with our 1.60 mm 1.60 mm 1.45 mm RoHS compliant 1.45 mm glass. The replacement 2.40 mm lens 2.40 code mm is 0.88 mm 0.88 mm mm 1.01 mm Collimate or focus laser light. High NA for maximum light capture; small physical size. Fiber to fiber coupling applications when use with another lens or in pairs A AR Coating nm B C AR Coating nm A AR Coating nm B Discontinued C AR Coating nm Drawing Parameter RoHS Ø Ø Lens Codes and Ø 1.90 ECO-550 C nm 780 nm This lens has been Numerical Aperture (NA) mm replaced 2.0 mm with our 2.00 mm 2.00 mm RoHS compliant glass. The replacement 3.00 mm 3.00 mm 1.09 mm lens 1.09 code mm is 2.0 mm 2.00 mm Laser Window Thickness mm mm Laser Window Material/Index BK7 / BK7 / Collimate or focus laser light at high magnification from a laser diode. High NA for maximum light capture; small physical size. Presentation pointers, small weapons sights, survey instruments, alignment instruments, hand held and fixed barcode scanners, medical instruments A AR Coating nm B C AR Coating nm A AR Coating nm B Discontinued C AR Coating nm Drawing Parameter RoHS Ø 4.70 Ø Ø 3.40 ECO-550 C nm 780 nm This lens has been Numerical Aperture (NA) mm replaced 3.70 with mm our 6.16 mm 6.16 mm RoHS compliant glass. The replacement 4.70 mm 4.70 mm 4.38 mm lens 4.37 code mm is 3.48 mm 3.48 mm Laser Window Thickness mm mm Laser Window Material/Index BK7 / BK7 / Collimate or focus laser light at high magnification from a laser diode. Low NA for clean circular beam; moderate physical size. Industrial barcode readers, point-of-purchase barcode readers, laser printers, laser fax machines, survey instruments A AR Coating nm B C AR Coating nm A AR Coating nm B Discontinued C AR Coating nm 17

11 Lens Codes and Drawing Parameter RoHS Ø Ø ECO-550 C nm This lens 633 has nm been Numerical Aperture (NA) mm replaced 5.50 with mm our mm mm RoHS compliant glass. The replacement mm 7.20 mm 7.97 mm lens 7.96 code mm is 5.00 mm 5.00 mm Laser Window Thickness mm mm Laser Window Material/Index BK7 / BK7 / Collimate or focus laser light at high magnification from a laser diode. Low NA for clean circular beam; large CA for minimum beam divergence. Industrial bar code readers, point-of-purchase barcode readers, laser printers, laser fax machines, survey instruments A AR Coating nm B C AR Coating nm A AR Coating nm B Discontinued C AR Coating nm Lens Codes and Drawing Parameter RoHS Ø Ø Ø 4.50 ECO-550 C nm This lens 780 has nm been Numerical Aperture (NA) mm replaced 4.95 with mm our 4.51 mm 4.51 mm RoHS compliant glass. The replacement mm mm 2.92 mm lens 2.91 code mm is 2.94 mm 2.94 mm Laser Window Thickness 0.25 mm mm Laser Window Material/Index BK7 / BK7 / Collimate or focus laser light at high magnification from a laser diode. High NA for maximum light capture; large CA for minimum beam divergence. Presentation pointers, small weapons sights, survey instruments, alignment instruments, hand held and fixed barcode scanners, medical instruments A AR Coating nm B C AR Coating nm A AR Coating nm B Discontinued C AR Coating nm Lens Codes and Drawing Parameter RoHS Ø Ø Ø 8.68 ECO-550 C nm This lens 780 has nm been Numerical Aperture (NA) mm replaced 8.00 with mm our 8.00 mm 8.00 mm RoHS compliant glass. The replacement mm 9.94 mm mm lens 5.92 code mm is 3.69 mm 3.69 mm Laser Window Thickness mm mm Laser Window Material/Index BK7 / BK7 / Collimate or focus laser light at high magnification from a laser diode. High NA for maximum light capture; large CA and long focal length for minimum beam divergence. Telecommunications A AR Coating nm B C AR Coating nm A AR Coating nm B Discontinued C AR Coating nm 18

12 Lens Codes and Drawing Parameter RoHS Ø Ø ECO-550 C nm This lens 780 has nm been Numerical Aperture (NA) mm replaced 5.00 with mm our mm mm RoHS compliant glass. The replacement 6.50 mm 6.50 mm mm lens code mm is 2.20 mm 2.20 mm Laser Window Thickness mm mm Laser Window Material/Index BK7 / BK7 / Collimate or focus laser light at high magnification from a laser diode. Low NA for clean circular beam; large CA for minimum beam divergence. Industrial barcode readers, point-of-purchase barcode readers, laser printers, laser fax machines, survey instruments A AR Coating nm B C AR Coating nm A AR Coating nm B Discontinued C AR Coating nm Lens Codes and Drawing Parameter RoHS Ø Ø ECO-550 C nm This lens 780 has nm been Numerical Aperture (NA) mm replaced 5.50 with mm our mm mm RoHS compliant glass. The replacement 6.50 mm 6.50 mm mm lens code mm is mm Laser Window Thickness mm mm Laser Window Material/Index BK7 / BK7 / Collimate or focus laser light at high magnification from a laser diode. Low NA for clean circular beam; large CA for minimum beam divergence. Industrial barcode readers, point-of-purchase barcode readers, laser printers, laser fax machines, survey instruments A AR Coating nm B C AR Coating nm A AR Coating nm B Discontinued C AR Coating nm Lens Codes and Drawing Parameter RoHS Ø Ø 5.04 Ø ECO-550 C nm This lens 830 has nm been Numerical Aperture (NA) 0.68 replaced 0.68 with our 5.00 mm 5.00 mm RoHS compliant glass mm 3.10 mm The replacement mm lens code mm is 1.76 mm mm 3.18 mm 3.19 mm Collimate or focus laser light. High NA for maximum light capture; large CA for minimum beam convergence. Fiber to fiber coupling applications when use with another lens or in pairs A AR Coating nm B C AR Coating nm A AR Coating nm B Discontinued C AR Coating nm 19

13 Lens Codes and Drawing Parameter RoHS Ø Ø 5.23 Ø ECO-550 C nm This lens 685 has nm been Numerical Aperture (NA) mm replaced 5.00 with mm our 4.03 mm 4.03 mm RoHS compliant glass. The replacement mm mm 2.69 mm lens 1.56 code mm is 3.07 mm 3.07 mm Laser Window Thickness 1.20 mm mm Laser Window Material/Index K3 / K3 / Focus light into an optical disk. High NA for maximum light capture; large CA for minimum beam divergence. Optical data storage systems A AR Coating nm B C AR Coating nm A AR Coating nm B Discontinued C AR Coating nm Lens Codes and Drawing Parameter RoHS Ø Ø 4.10 Ø ECO-550 C nm This lens 980 has nm been Numerical Aperture (NA) 0.42 replaced 0.42 with our 3.70 mm 3.70 mm RoHS compliant glass mm 4.50 mm The replacement 4.70 mm lens 4.70 code mm is 2.38 mm mm 3.64 mm 3.65 mm Collimate or focus laser light. Moderate NA for good light capture. Fiber coupling applications A AR Coating nm B C AR Coating nm A AR Coating nm B Discontinued C AR Coating nm Lens Codes and Drawing Parameter RoHS Ø Ø ECO-550 C nm This lens 980 has nm been Numerical Aperture (NA) 0.53/0.27 (object/image) 0.53 / 0.27 (object / image) replaced with our 4.0 mm/4.2 mm (object/image) 4.0 mm / 4.2 mm (object / image) 2.95 mm RoHS compliant 2.95 mm glass mm The replacement 4.70 mm 2.66 mm/6.91 mm (object/image) 2.66/6.91 mm (front/back) lens code is mm 4.07 mm Laser Window Thickness mm mm Laser Window Material/Index BK7 / BK7 / Finite conjugate operates at (2:1) magnification. High NA for maximum light capture. Laser diode pigtails (SM/MM), laser diode connectors (SM/MM), fiber-to-fiber connectors A AR Coating nm B C AR Coating nm A AR Coating nm B Discontinued C AR Coating nm 20

14 Lens Codes and Drawing Parameter RoHS Ø ECO-550 C nm This lens 980 has nm been Numerical Aperture (NA) 0.30/0.30 (object/image) 0.30/0.30 replaced (object/image) with our 1.15 mm/1.15 mm (object/image) 1.15/1.15 mm (object/image) RoHS compliant glass mm 1.16 mm 1.00 The replacement mm lens 1.80 code mm is 1.69 mm/1.69 mm (object/image) 1.69/1.69 mm (front/back) mm 1.48 mm Minimize alignment sensitivity; finite conjugate operates at (1:1) magnification. Single lens couples light to single mode/multi-mode fibers; small physical size for fiber-to-fiber coupling. Fiber coupling applications A AR Coating nm B C AR Coating nm A AR Coating nm B Discontinued C AR Coating nm Lens Codes and Drawing Parameter RoHS Ø Ø Ø 4.00 ECO-550 C nm This lens 410 has nm been Numerical Aperture (NA) mm replaced 4.80 with mm our 4.00 mm 4.00 mm RoHS compliant glass. The replacement mm mm 2.73 mm lens 1.53 code mm is mm 3.04 mm Laser Window Thickness mm mm Laser Window Material/Index K3 / K3 / Focus light through disk onto storage media. High NA for maximum light capture, small size Data storage A AR Coating nm B C AR Coating nm A AR Coating nm B Discontinued C AR Coating nm Lens Codes and , please see page 32. Lens Codes and Drawing Parameter RoHS Ø Ø 1.59 Ø 1.70 ECO-550 C nm This lens 1550 has nm been Numerical Aperture (NA) mm replaced 1.50 with mm our 1.49 mm 1.49 mm RoHS compliant glass. The replacement 2.65 mm 2.65 mm 1.1 mm lens 1.10 code mm is 0.88 mm 0.88 mm Laser Window Thickness mm mm Laser Window Material/Index BK7 / BK7 / Collimate or focus laser light at high magnification. High NA for maximum light capture; small size. Telecommunications A AR Coating nm B C AR Coating nm A AR Coating nm B Discontinued C AR Coating nm 21

15 Lens Code 352-A375 Drawing Parameter 352-A375 RoHS Ø Ø Direct replacement for Kodak A ECO nm Numerical Aperture (NA) mm 7.50 mm Optical Glass ECO550 Wavefront Error < 0.15 λ RMS (λ = 633 nm) Scratch/Dig 60/40 MgF 2 AR Coating 95% Transmission (650 nm nm) mm mm 2.83 mm Laser Window Thickness mm Laser Window Material/Index BK7 / Collimate or focus laser light at high magnification. High NA for maximum light capture. Laser collimator for telecommunications. 352-A375A AR Coating nm 352-A375B 352-A375C AR Coating nm 352A-375M AR Coating MgF2 Lens Code 352-A390 Drawing Parameter 352-A390 RoHS Ø Ø 5.12 Direct replacement for Kodak A ECO nm Numerical Aperture (NA) mm 4.60 mm Optical Glass ECO550 Wavefront Error < 0.1 λ RMS (λ = 633 nm) Scratch/Dig 60/40 MgF 2 AR Coating 95% Transmission (650 nm nm) 6.00 mm mm mm Laser Window Thickness mm Laser Window Material/Index BK7 / Collimate or focus laser light at high magnification. High NA for maximum light capture. Laser collimator for telecommunications. 352-A390A AR Coating nm 352-A390B 352-A390C AR Coating nm 352-A390M AR Coating MgF2 Lens Code 352-A397 Drawing Parameter 352-A397 RoHS Ø Ø Direct replacement for Kodak A ECO nm Numerical Aperture (NA) mm Optical Glass ECO550 Wavefront Error < 0.1 λ RMS (λ = 633 nm) Scratch/Dig 60/40 MgF 2 AR Coating 95% Transmission (650 nm nm) 7.20 mm mm mm Laser Window Thickness mm Laser Window Material/Index BK7 / Collimate or focus laser light at high magnification. High NA for maximum light capture. Laser collimator for telecommunications. 352-A397A AR Coating nm 352-A397B 352-A397C AR Coating nm 352-A397M AR Coating MgF2 22

16 Lens Code Drawing Parameter RoHS Ø Ø D-ZK3 633 nm Numerical Aperture (NA) mm 13.0 mm mm mm 2.38 mm Laser Window Thickness mm Laser Window Material/Index BK7 / Collimate or focus laser light ay high magnification from a laser diode. Low NA for clean circular beam; large CA for minimum beam divergence. Laser pointers, laser scanners, barcode readers, survey instruments A AR Coating nm B C AR Coating nm Lens Code Drawing Parameter RoHS Ø Ø D-ZK3 633 nm Numerical Aperture (NA) mm 12.0 mm mm mm 2.4 mm Laser Window Thickness mm Laser Window Material/Index BK7 / Collimate or focus laser light ay high magnification from a laser diode. Low NA for clean circular beam; large CA for minimum beam divergence. Laser pointers, laser scanners, barcode readers, survey instruments A AR Coating nm B C AR Coating nm Lens Code Drawing Parameter RoHS Ø Ø D-ZK3 633 nm Numerical Aperture (NA) mm 14.0 mm mm mm mm Laser Window Thickness mm Laser Window Material/Index BK7 / Collimate or focus laser light ay high magnification from a laser diode. Low NA for clean circular beam; large CA for minimum beam divergence. Laser pointers, laser scanners, barcode readers, survey instruments A AR Coating nm B C AR Coating nm 23

17 Lens Code Drawing Parameter RoHS Ø Ø D-ZK3 633 nm Numerical Aperture (NA) mm 9.6 mm mm 8.13 mm mm Laser Window Thickness mm Laser Window Material/Index BK7 / Collimate or focus laser light ay high magnification from a laser diode. Low NA for clean circular beam; large CA for minimum beam divergence. Laser pointers, laser scanners, barcode readers, survey instruments A AR Coating nm B C AR Coating nm Lens Code Drawing Parameter RoHS Ø Ø D-ZK3 633 nm Numerical Aperture (NA) mm 11.0 mm mm 9.56 mm mm Laser Window Thickness mm Laser Window Material/Index BK7 / Collimate or focus laser light ay high magnification from a laser diode. Low NA for clean circular beam; large CA for minimum beam divergence. Laser pointers, laser scanners, barcode readers, survey instruments A AR Coating nm B C AR Coating nm Lens Code Drawing Parameter RoHS Ø 6.00 Ø D-ZK3 633 nm Numerical Aperture (NA) mm mm 6.00 mm 9.66 mm mm Laser Window Thickness mm Laser Window Material/Index BK7 / Collimate or focus laser light ay high magnification from a laser diode. Low NA for clean circular beam; large CA for minimum beam divergence. Laser pointers, laser scanners, barcode readers, survey instruments A AR Coating nm B C AR Coating nm 24

18 Lens Code Drawing Parameter RoHS Ø 5.00 Ø D-ZK3 670 nm Numerical Aperture (NA) mm mm 5.00 mm mm mm Laser Window Thickness mm Laser Window Material/Index BK7 / Collimate or focus laser light ay high magnification from a laser diode. Low NA for clean circular beam; large CA for minimum beam divergence. Laser pointers, laser scanners, barcode readers, survey instruments A AR Coating nm B C AR Coating nm Lens Codes and Drawing Parameter RoHS Ø Ø D-ZK3 C nm This lens 670 has nm been Numerical Aperture (NA) 0.21 replaced 0.21 with our 2.50 mm 2.50 mm 6.00 mm RoHS compliant 6.00 mm glass. The replacement 3.00 mm lens 3.00 code mm is 4.90 mm mm mm mm Collimate or focus laser light. High NA for maximum light capture; small physical size. Fiber to fiber coupling applications when use with another lens or in pairs A AR Coating nm B C AR Coating nm A AR Coating nm B Discontinued C AR Coating nm Lens Codes and Drawing Parameter RoHS Ø Ø DZK-3 C nm This lens 605 has nm been Numerical Aperture (NA) mm replaced 3.8 mm with our 6.2 mm 6.45 mm RoHS compliant glass. The replacement 4.70 mm 4.70 mm 4.1 mm lens 4.38 code is mm 3.46 Laser Window Thickness mm mm Laser Window Material/Index BK7 / BK7 / Collimate or focus laser light at high magnification from a laser diode. Low NA for clean circular beam; moderate physical size. Industrial barcode readers, point-of-purchase barcode readers, laser printers, laser fax machines, survey instruments A AR Coating nm B C AR Coating nm A AR Coating nm B Discontinued C AR Coating nm 25

19 Lens Codes and Drawing Parameter RoHS Ø 2.00 Ø D-ZK3 C nm This lens 1550 has nm been Numerical Aperture (NA) 0.15 replaced 0.15 with our 1.60 mm 1.50 mm 5.00 mm RoHS compliant 5.00 mm glass. The replacement 2.00 mm lens 2.00 code mm is 4.37 mm mm mm 1.01 mm Collimate or focus laser light. Low NA for clean circular beams; small physical size. Fiber coupling applications A AR Coating nm B C AR Coating nm A AR Coating nm B Discontinued C AR Coating nm Lens Codes and Drawing Parameter RoHS Ø 2.79 Ø D-ZK3 C nm This lens 1550 has nm been Numerical Aperture (NA) 0.18 replaced 0.18 with our 2.20 mm 2.20 mm 6.10 mm RoHS compliant 6.10 mm glass. The replacement 2.79 mm lens 2.80 code mm is 4.87 mm mm 1.93 mm 1.93 mm Collimate or focus laser light. Low NA for clean circular beam; small physical size. Fiber coupling applications A AR Coating nm B C AR Coating nm A AR Coating nm B Discontinued C AR Coating nm Lens Codes and Drawing Parameter RoHS Ø Ø ECO-550 C nm This lens 650 has nm been Numerical Aperture (NA) 0.18 replaced 0.18 with our 5.10 mm 5.10 mm mm RoHS compliant mm glass. The replacement mm lens code mm is mm mm mm 2.76 mm Collimate or focus laser light. Low NA for clean circular beam; large CA for minimum beam divergence. Fiber coupling applications, data storage A AR Coating nm B C AR Coating nm A AR Coating nm B Discontinued C AR Coating nm 26

20 Lens Codes and Drawing Parameter RoHS Ø Ø D-ZK3 C nm This lens 670 has nm been Numerical Aperture (NA) mm replaced 5.50 with mm our mm mm RoHS compliant glass. The replacement mm mm mm lens code mm is mm mm Laser Window Thickness mm mm Laser Window Material/Index BK7 / BK7 / Collimate or focus laser light at high magnification. High NA for maximum light capture; small size. Telecommunications A AR Coating nm B C AR Coating nm A AR Coating nm B Discontinued AR Coating nm C AR Coating nm Lens Code Drawing Parameter RoHS Ø 3.00 Ø D-ZK3 634 nm Numerical Aperture (NA) mm 4.50 mm 3.00 mm 3.46 mm mm Laser Window Thickness mm Laser Window Material/Index BK7 / Collimate or focus laser light ay high magnification from a laser diode. Low NA for clean circular beam; large CA for minimum beam divergence. Laser pointers, laser scanners, barcode readers, survey instruments A AR Coating nm B C AR Coating nm Lens Codes and Drawing Parameter RoHS Ø 4.00 Ø D-ZLaF52LA C nm This lens 780 has nm been Numerical Aperture (NA) replaced with our 3.00 mm 3.00 mm 2.73 mm RoHS compliant 2.73 mm glass. RMS WFE Diffraction Limited The Diffraction replacement Limited 4.00 mm 4.00 mm lens code is 2.37 mm mm Laser Window Thickness mm mm Laser Window Material/Index Polycarbonate Disk / Polycarbonate Disk / 1.20 Focus light into an optical disk.. High NA for maximum light capture, small focused spot. Optical data storage systems A AR Coating nm B C AR Coating nm A AR Coating nm B Discontinued C AR Coating nm 27

21 Lens Codes and Drawing Parameter RoHS Ø 2.40 Ø Ø 1.66 D-ZLaF52LA C nm This lens 1300 has nm been Numerical Aperture (NA) 0.43/0.12 (object/image) 0.43 / (object /image) 1.10 mm/1.24 mm (object/image) 1.13/1.3 replaced mm (object/image) with our 1.14 mm 1.14 mm 3.64 RoHS compliant 3.64 glass. The replacement 2.40 mm 2.40 mm 4.81 mm/1.13 mm (object/image) 1.16/4.93 lens mm code (front/back) is mm 1.03 mm Laser Window Thickness 0.30 mm mm Laser Window Material/Index BK7 / BK7 / Finite conjugate operates at (3.70:1) magnification. Single lens couples light to single mode/multi-mode fibers; small physical size for fiber-to-fiber coupling. Laser diode pigtails (SM/MM), laser diode connectors (SM/MM), fiber-to-fiber connectors A AR Coating nm B C AR Coating nm A AR Coating nm B Discontinued C AR Coating nm Lens Codes and Drawing Parameter RoHS Ø 4.50 Ø Ø 3.70 D-ZLaF52LA C nm This lens 830 has nm been Numerical Aperture (NA) 0.55 replaced 0.68 with our 3.60 mm 3.60 mm RoHS compliant glass mm 2.75 mm The replacement 4.50 mm lens 4.00 code mm is 2.16 mm mm mm 1.90 mm Collimate or focus laser light. High NA for maximum light capture. Fiber to fiber coupling applications when use with another lens or in pairs A AR Coating nm B C AR Coating nm A AR Coating nm B Discontinued C AR Coating nm Lens Codes and Drawing Parameter RoHS Ø 4.00 Ø D-ZLaF52LA C nm This lens 1550 has nm been Numerical Aperture (NA) 0.60 replaced 0.60 with our 3.60 mm 3.60 mm 2.97 mm RoHS compliant 2.97 mm glass. The replacement 4.00 mm lens 4.00 code mm is 1.56 mm mm 2.50 mm 2.50 mm Collimate or focus laser light at high magnification. High NA for maximum light capture. Telecommunications A AR Coating nm B C AR Coating nm A AR Coating nm B Discontinued C AR Coating nm 28

22 Lens Code Drawing Parameter PBH nm Numerical Aperture (NA) mm mm Ø Ø 0.90 RMS WFE < Diffraction Limited 2.50 mm mm 0.80 mm Collimate or focus laser light at high magnification Very high NA for maximum light capture. Laser collimator for telecommunications Q AR Coating nm Lens Code Drawing Parameter Front View Ø PBH nm Numerical Aperture (NA) 0.55/0.13 (object/image) 0.40 mm/0.53 mm (object/image) mm 4.02 RMS WFE Diffraction Limited mm Edge Length 1.20 mm mm/1.910 mm (object/image) 0.35 mm Laser to laser fiber coupling lens. High NA for maximum light capture; small size. Telecommunications Q AR Coating nm Lens Code Drawing Parameter Ø 2.27 Ø 1.67 Direct replacement for: ALPS FLBF1Z001A ALPS FLBF1Z101A Ø PBH nm Numerical Aperture (NA) mm 0.75 mm RMS WFE Diffraction Limited 3.0 mm 0.2 mm 1.13 mm Distance Holder to Laser 0.23 mm Lens Holder 304 Stainless Steel Collimate or focus laser light at high magnification. High NA for maximum light capture. Laser collimator for telecommunications Q AR Coating nm 29

23 Lens Code Drawing Parameter Ø Direct replacement for: ALPS FLAM1Z001A ALPS FLAM1Z101A Ø Ø 2.50 PBH nm Numerical Aperture (NA) mm 0.70 mm RMS WFE Diffraction Limited 2.5 mm 0.29 mm 0.95 mm Distance Holder to Laser 0.33 mm Lens Holder 304 Stainless Steel Collimate or focus laser light at high magnification. High NA for maximum light capture. Laser collimator for telecommunications Q AR Coating nm Lens Code Drawing Parameter Ø 1.81 Ø 1.20 Ø Direct replacement for: ALPS FLAN1Z001A ALPS FLAN1Z101A PBH nm Numerical Aperture (NA) mm 1.80 mm RMS WFE Diffraction Limited 3.0 mm 1.11 mm 1.28 mm Distance Holder to Laser 1.0 mm Lens Holder 304 Stainless Steel Collimate or focus laser light at high magnification. High NA for maximum light capture. Laser collimator for telecommunications Q AR Coating nm Lens Code Drawing Parameter Ø Direct replacement for: ALPS FLBN1Z001A ALPS FLBN1Z101A Ø ± ± ± Ø ± PBH /1480 nm Numerical Aperture (NA) mm 0.75 mm RMS WFE Diffraction Limited mm 0.2 mm 1.13 mm Distance Holder to Laser 0.23 mm Lens Holder 304 Stainless Steel Collimate or focus laser light at high magnification. High NA for maximum light capture. Laser collimator for telecommunications Q AR Coating nm 30

24 Lens Code Drawing Parameter Ø Direct replacement for: ALPS FLBM1Z001A ALPS FLBM1Z101A Ø ± ± ± Ø ± PBH nm Numerical Aperture (NA) mm 0.70 mm RMS WFE Diffraction Limited mm 0.29 mm 0.95 mm Distance Holder to Laser 0.33 mm Lens Holder 304 Stainless Steel Collimate or focus laser light at high magnification. High NA for maximum light capture. Laser collimator for telecommunications Q AR Coating nm Lens Code Drawing Parameter Ø Ø 1.82 Direct replacement for: ALPS FLAG1Z001A ALPS FLAG1Z101A Ø PBH nm Numerical Aperture (NA) mm 4.0 mm RMS WFE Diffraction Limited 3.0 mm 3.36 mm 1.23 mm Distance Holder to Laser 3.36 mm Lens Holder 304 Stainless Steel Collimate or focus laser light at high magnification. High NA for maximum light capture. Laser collimator for telecommunications Q AR Coating nm Lens Code Drawing Parameter Ø Ø 1.65 Ø Direct replacement for: ALPS FLAE1Z001A ALPS FLAE1Z101A PBH nm Numerical Aperture (NA) mm 2.51 mm RMS WFE Diffraction Limited 2.25 mm mm 1.41 mm Distance Holder to Laser 1.68 mm Lens Holder 304 Stainless Steel Collimate or focus laser light at high magnification. High NA for maximum light capture. Laser collimator for telecommunications Q AR Coating nm 31

25 Blue Laser Collimating Lens Optimized for Nichia blue laser Compatible with other blue diode lasers Aspheric molded glass lens Diffraction limited performance Compact, single lens design Short wavelength provides smallest spot LightPath s molded glass aspheric lens is optimized to collimate Nichia s blue laser diode, and is manufactured and designed to meet extremely stringent optical standards. Achieving good beam quality is particularly difficult for shorter wavelength lasers. The molded glass aspheric lenses are designed for the specific beam divergences, peak wavelength and window material of commercial blue diode lasers, enabling blue laser applications to achieve excellent beam quality and performance. Working with lasers from 400 nm to 415 nm with a design centered at 408 nm per the laser manufacturers specification, this design was optimized with a very large and forgiving clear aperture and is also compensated for the laser manufacturers variation in window thickness. The lens utilizes LightPath s ECO-550 glass, a lead-free alternative to traditional moldable glasses. This glass is fully RoHS compliant, in accordance with the new European restrictions on hazardous substances. Lens Codes and Drawing Parameter RoHS RoHS Ø Ø Ø ECO-550 ECO nm 408 nm Numerical Aperture (NA) mm 4.80 mm 4.02 mm 4.02 mm mm mm 2.39 mm 2.37 mm 3.02 mm mm Laser Window Thickness mm mm Laser Window Material/Index PK2 / PK2 / Collimate laser light at high magnification. High NA for maximum light capture. Data storage A AR Coating nm A AR Coating nm B C AR Coating nm 32

26 Glass Aspheres for Laser Tools Single lens provides same performance as doublets and triplets Reduces system cost through simple, compact design Molded lenses for greater performance repeatability Designed for high volume production In today s manufacturing environment, laser tools are a common method for generating guidelines and measuring distances or surface profiles. These tools include laser levels, laser pointers, line projectors, laser scanners, and laser trackers. LightPath s aspheric lenses are designed for use in today s high performance laser tools and measurement systems. Aspheric lenses provide a single lens solution to laser projection. These aspheric lenses provide a cost savings over spherical doublets and triplets without sacrificing performance. Time consuming and expensive mounting and alignment of doublets and triplets can be replaced with a simple single lens mount. Aspheric lenses also have higher transmission than multi-lens systems due to less optical material and allow more compact packaging to be produced. Contact LightPath to take advantage of the power of Aspheric Optics for a simpler optical system. Lens Code Shape Numerical Aperture Laser Tool Lenses Focal Length Outer Diameter Clear Aperture Working Distance Plano-Convex (PCX) Plano-Convex (PCX) Plano-Convex (PCX) Plano-Convex (PCX) Plano-Convex (PCX) Plano-Convex (PCX) Plano-Convex (PCX) Plano-Convex (PCX) LightPath s D-ZK3 Glass is used for all Laser Tool Lenses. Please see page for detailed descriptions of the above lenses. Standard Coatings MLBB-A Coating: 400 nm nm MLBB-B Coating: 600 nm nm MLBB-C Coating: 1050 nm nm M g F

27 Asphere Customization Capabilities Aspheric Hybrid Optics Refractive-diffractive design Color corrects with a single element Diffraction limited performance Custom F/1 and faster achromats available High performance, cost effective Diffractive Zone on an Aspheric Lens In multi-wavelength or polychromatic applications, the change in focal length due to wavelength can compromise lens performance. For example, if the application requires minimum spot size, as is required in data storage or communications systems, the spot size will change with wavelength, which can degrade system performance. In imaging applications, an uncorrected lens results in a blurry image. A colorcorrected lens is needed to minimize these effects. LightPath s line of optical products for minimizing chromatic aberrations using only a single optical element. These new glass, molded asphericdiffractive lenses, also called hybrid lenses, can be used over a range of wavelengths for many applications, such as endoscopes for medical and industrial applications, CCD cameras for imaging, as well as tunable lasers for communications products. Using LightPath s unique precision molded glass hybrid lenses, customers can now solve chromatic performance issues in a single glass lens, and reduce weight, volume and parts count at the same time. Molded In Place (MIP) Lenses LightPath s lenses can be molded directly into metallic holders, allowing the lenses to be welded or soldered into the package and eliminating the need to use epoxy. This can be an ideal solution for high volume automated assembly or in applications where strict outgassing requirements preclude the use of epoxy adhesives. Anamorphic Optics Most commercially available laser diodes project an elliptical beam due to the diode junction having a rectangular shape. This elliptical beam can create difficulties in many applications, such as laser to fiber coupling. LightPath s lens technology creates a simple solution to circularize and collimate many of the available laser diodes. By positioning the lens very close to the laser chip itself, these lenses provide a small circular and collimated beam, providing a very elegant and compact solution. 34

28 Mounted Aspheric Lenses Cost effective solution for mounting Geltech aspheres Easy to handle optical assembly Durable stainless-steel housing Threaded extension for easy mounting Compact size LightPath s line of mounted aspheric lenses makes assembly work quick and easy. The housings are made from durable stainless steel, which is suitable for welding or soldering. The mounts also have a threaded exterior, allowing you to simply screw the lens into place. Standard design mounts are available for 24 of our most popular lens types, but any of the lenses in the catalog can be mounted into a holder of your preference. General Specifications and Tolerances Lens Holder Design MT6A Lens Holder Design MT6B Holder Material Stainless Steel Holder Outer Diameter Holder Inner Diameter Holder Length Length of Threaded Section ± mm ± mm ± mm ± mm Ø 6.24 M6 x 0.5-6g Thread Ø 6.24 M6 x 0.5-6g Thread Ordering Information 1.90 D 1.97 D Part Number Holder Type EFL NA D Y-00-MT MT Y-00-MT MT Y-00-MT MT Y-00-MT MT Y-00-MT MT Y-00-MT MT6A Y-00-MT MT Y-00-MT MT Y-00-MT MT Y-00-MT MT Y-00-MT MT Y-00-MT MT Y-00-MT MT Y-00-MT MT Y-00-MT MT Y-00-MT MT Y-00-MT MT / Y-00-MT MT Y-00-MT MT Y-00-MT MT6B A397Y-00-MT MT Y-00-MT MT Y-00-MT MT Y-00-MT MT **Substitute AR coating letter for Y in the product number. Lens Holder Design MT8 Ø M8 x 0.5-6g Thread D 3.20 Lens Holder Design MT12 Ø M12 x 0.5-6g Thread D 3.20 Lens Holder Design MT9 Ø M9 x 0.5-6g Thread D 3.20 Lens Holder Design MT14 Ø M14 x g Thread For mounts with Fiber Connectors, please see page. D 35

29 Connectorized Aspheric Fiber Optic Collimators Optimal performance using Aspheric Lenses Pre-aligned for popular wavelengths Epoxy free optical path Connectorized for quick assembly Rugged stainless steel housing Threaded exterior for easy mounting LightPath s line of connectorized aspheric collimator assemblies combine the outstanding performance of glass molded aspheric lenses with the ease of assembly of a fiber connector interface. The assemblies have a threaded exterior, which allows a quick connection to an optical bench or within an instrument. LightPath s connectorized collimators are available with FC/PC, FC/APC, or SMA fiber optic connectors. Each collimator is individually aligned and tested for the specified wavelength, and will offer excellent performance throughout the entire range of their AR coatings. Standard design assemblies are available for our most popular lens types, but any asphere in our catalog can be mounted into a custom assembly of your choice. Please contact LightPath sales for more information. Part Number λ (nm) Beam ø * AR Coating Thread ø ø L1 L2 L3 L (FCPC / FCAPC / SMA) A M11 x g (FCPC / FCAPC / SMA) B M11 x g (FCPC / FCAPC / SMA) C M11 x g (FCPC / FCAPC / SMA) C M11 x g (FCPC / FCAPC / SMA) C M11 x g (FCPC / FCAPC / SMA) - Y - KIT A, B, or C M11 x g (FCPC / FCAPC / SMA) A M11 x g (FCPC / FCAPC / SMA) B M11 x g (FCPC / FCAPC / SMA) C M11 x g (FCPC / FCAPC / SMA) C M11 x g (FCPC / FCAPC / SMA) C M11 x g (FCPC / FCAPC / SMA) - Y - KIT A, B, or C M11 x g (FCPC / FCAPC / SMA) A M11 x g (FCPC / FCAPC / SMA) B M11 x g (FCPC / FCAPC / SMA) C M11 x g (FCPC / FCAPC / SMA) C M11 x g (FCPC / FCAPC / SMA) C M11 x g (FCPC / FCAPC / SMA) - Y - KIT A, B, or C M11 x g (FCPC / FCAPC / SMA) A M12 x g (FCPC / FCAPC / SMA) B M12 x g (FCPC / FCAPC / SMA) C M12 x g (FCPC / FCAPC / SMA) C M12 x g (FCPC / FCAPC / SMA) C M12 x g (FCPC / FCAPC / SMA) - Y - KIT A, B, or C M12 x g (FCPC / FCAPC / SMA) A M11 x g (FCPC / FCAPC / SMA) B M11 x g (FCPC / FCAPC / SMA) C M11 x g (FCPC / FCAPC / SMA) C M11 x g (FCPC / FCAPC / SMA) C M11 x g (FCPC / FCAPC / SMA) - Y - KIT A, B, or C M11 x g 11 NOTE: For -KIT part numbers, Y is equal to AR coating requested. * Typical beam diameter, measured at 1/e 2, when using single mode fiber. NEW! NEW! For all Connectorized Collimators, Pointing Accuracy = 0.5 and Waist Position = Infinity. Connectorized Collimators can also be ordered as an unaligned kit for custom wavelength alignment. 36