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Molded Glass Aspheric Lenses: 350 - 700 nm or 400 - 600 nm AR Coating


Related Items

Alternative Aspheric Lenses
Coating DesignationSpectral Range
UncoatedVisible and NIR
-A350 - 700 nm
-B600 - 1050 nm
-C1050 - 1620 nm
-D1.8 - 3 µm
-E3 -5 µm
-F8 - 12 µm
-405405 nm
-10641064 nm

Molded Glass Aspheric Lenses: 350 - 700 nm or 400 - 600 nm Broadband AR Coating

Aspheric lenses focus or collimate light without introducing spherical aberration into the transmitted wavefront. For monochromatic sources, spherical aberration often prevents a single spherical lens from achieving diffraction-limited performance when focusing or collimating light. Thus, an aspheric lens is often the best single element solution for many applications including collimating the output of a fiber or laser diode, coupling light into a fiber, spatial filtering, or imaging light onto a detector.

All molded glass aspheres are also available premounted in non-magnetic 303 stainless steel lens cells that are engraved with the part number for easy identification. These mounted aspheres have a metric thread that makes them easy to integrate into an optical setup or OEM application. The mounted aspheres are readily adapted to our SM1-threaded (1.035"-40) of lens tubes by using our Aspheric Lens Adapters. Mounted aspheres can be used as a drop-in replacement for multi-element microscope objectives by combining the lens with our Microscope Objective Adapter Extension Tube.

AR coating curve

If an unmounted aspheric lens is being used to collimate the light from a point source or laser diode, the side with the greater radius of curvature (i.e., the flatter surface) should face the point source or laser diode. To collimate light using one of our mounted aspheric lenses, orient the housing so that the externally threaded end of the mount faces the source.

Molded glass aspheres are manufactured from a variety of optical glasses to yield the indicated performance. The molding process will cause the properties of the glass (e.g., Abbe number) to deviate slightly from those given by glass manufacturers. Specific material properties for each lens can be found by clicking on the Glass link in the tables below.

Webpage Features
 info iconClick to view complete specifications, documents, and drawings.
Performance HyperlinkClick to view item specific spot diagrams at various wavelengths and focal length shift data.

Choosing a Lens

Aspheric lenses are commonly chosen to couple incident light with a diameter of 1 - 5 mm into a single mode fiber. A simple example will illustrate the key specifications to consider when trying to choose the correct lens.

Example:
Fiber: P1-630A-FC-2
Collimated Beam Diameter Prior to Lens: Ø3 mm

The specifications for the P1-630A-FC-2, 630 nm, FC/PC single mode patch cable indicate that the mode field diameter (MFD) is 4.3 μm. This specification should be matched to the diffraction-limited spot size given by the following equation:

Equation for Diffraction-Limited Spot

Here, f  is the focal length of the lens, λ is the wavelength of the input light, and D is the diameter of collimated beam incident on the lens. Solving for the desired focal length of the collimating lens yields

focal length of collimating lens

Thorlabs offers a large selection of mounted and unmounted aspheric lenses to choose from. The aspheric lens with a focal length that is closest to 16 mm has a focal length of 15.29 mm (Item# 354260-B or A260-B). This lens also has a clear aperture that is larger than the collimated beam diameter. Therefore, this aspheric lens is the best option given the initial parameters (i.e., a P1-630A-FC-2 single mode fiber and a collimated beam diameter of 3 mm). Remember, for optimum coupling the spot size of the focused beam must be less than the MFD of the single mode fiber. As a result, if an aspheric lens is not available that provides an exact match, then choose the aspheric lens with a focal length that is shorter than the calculation above yields. Alternatively, if the clear aperture of the aspheric lens is large enough, the beam can be expanded before the aspheric lens, which has the result of reducing the spot size of the focus beam.

Lens Design Formula

  • Positive Radius Indicates that the Vertex is Located Left of the Center
  • Negative Radius Indicates that the Vertex is Located Right of the Center

Aspheric Lens Equation

Variable Definitions
zSAG as a Function of Y
RRadius of Curvature
kConic Constant
A44th Order Aspheric Coefficient
A66th Order Aspheric Coefficient
A8 8th Order Aspheric Coefficient
A1010th Order Aspheric Coefficient
A12 12th Order Aspheric Coefficient
A1414th Order Aspheric Coefficient
A1616th Order Aspheric Coefficient

Aspheric Lens Coefficients

The aspheric lens coefficients are listed on the lens information pages that are loaded by clicking on the info icon symbol in the tables below and in the .pdf and .dxf files available for each lens. Links to the files can be found under the Drawings and Documents tab or by clicking on the part number in the price table below.

Choosing a Collimation Lens for Your Laser Diode

Since the output of a laser diode is highly divergent, collimating optics are necessary. Since aspheric lenses do not introduce spherical aberration, they are commonly chosen when the collimated laser beam is to be between one and five millimeters. A simple example will illustrate the key specifications to consider when choosing the correct lens for a given application.

Example:
Laser Diode to be Used: L780P010
Desired Collimated Beam Diameter: Ø3 mm (Major Axis)

The specifications for the L780P010 laser diode indicate that the typical parallel and perpendicular FWHM beam divergences are 10o and 30o, respectively. Therefore, as the light diverges, an elliptical beam will result. To collect as much light as possible during the collimation process, consider the larger of these two divergence angles in any calculations (i.e., in this case use 30o). If you wish to convert your elliptical beam in to a round one, we suggest using an Anamorphic Prism Pair, which magnifies one axis of your beam.

laser diode collimation drawing

Ø = Beam Diameter

Θ = Divergence Angle

From the information above, the focal length of the lens can be determined, using the thin lens approximation:

focal length calculation

With this information known, it is now time to choose the appropriate collimating lens. Thorlabs offers a large selection of aspheric lenses to choose from. For this application the ideal lens is a -B AR-coated molded glass aspheric lens with focal length near 5.6 mm. The C171TMD-B (mounted) or 354171-B (unmounted) aspheric lenses have a focal length of 6.20 mm, which will result in a collimated beam diameter (major axis) of 3.3 mm. Next, check to see if the numerical aperture (NA) of the diode is smaller than the NA of the lenses so that the light emitted from the laser diode is not clipped by the lens:

0.30 = NALens > NADiode ~ sin(15°) = 0.26

AR Coating Abbreviations
Abbreviation Description
U Uncoated: Optics do not have an AR Coating of any kind
A Broadband AR Coating for the 350 - 700 nm or 400 - 600 nm range
B Broadband AR Coating for the 600 - 1050 nm or 650 - 1050 nm range
C Broadband AR Coating for the 1050 - 1620 nm range
V Narrowband AR Coating designed for the wavelength listed in the table below

The table below contains all molded visible and near-IR aspheric lenses offered by Thorlabs. For our selection of IR molded aspheres, click here. The item # listed is that of the unmounted, uncoated lens. An "X" in any of the five AR Coating Columns indicates the lens is available with that coating (note that the V coating availability is indicated with the design wavelength). The table to the right defines each letter and lists the specified AR coating range. Click on the linked X's to purchase the specific lens, which is available mounted and unmounted.

Base Item #AR Coating OptionsEffective
Focal Length
NAOuter Diameter of
Unmounted Lens
Working DistanceClear Aperture of
Unmounted Lens
UABCVUnmountedMounteda
352140   X   X   1.45 mm 0.55 2.40 mm 0.88 mm 0.88 mm 1.60 mm
354140     X     1.45 mm 0.58 2.4 mm 0.81 mm 0.81 mm 1.60 mm
354710   X X X   1.49 mm 0.53 2.7 mm 0.52 mmb 0.42 mmb 1.50 mm
355151   X X X   2.00 mm 0.50 3.00 mm 0.48 mmb 0.28 mmb 2.00 mm
355390   X X X   2.75 mm 0.55 4.50 mm 2.16 mm 1.91 mm 3.60 mm
355392   X X X   2.75 mm 0.64 4.00 mm 1.50 mm 0.98 mm 3.60 mm
352440   X       2.95 mm 0.27/0.53c 4.70 mm 6.91 mm/2.75 mmc 5.04 mm/2.84 mmc 4.00 mm
355440     X X   2.76 mm 0.26/0.52c 4.7 mm 7.09 mm/1.96 mmb,c 7.09 mm/1.86 mmb,c 4.12 mm
355660   X X X   2.97 mm 0.60 4.00 mm 1.56 mm 1.31 mm 3.60 mm
354330   X X X   3.1 mm 0.68 6.3 mm 1.76 mm 1.76 mm 5.00 mm
A414   X X X   3.30 mm 0.47 4.50 mm 1.94 mm 1.81 mm 3.52 mm
N414   X X X   3.30 mm 0.47 4.50 mm 1.94 mm 1.83 mm 3.52 mm
352610   X X     4.00 mm 0.60 6.33 mm 2.73 mm 2.44 mm 4.80 mm
352671   X X   405 4.02 mm 0.60 6.33 mm 2.37 mm 2.13 mm 4.80 mm
354340   X X     4.03 mm 0.64 6.3 mm 1.48 mmb 1.18 mmb 5.10 mm
354350     X X   4.50 mm 0.43 4.70 mm 2.19 mm 1.59 mm 3.70 mm
352110         1064 6.24 mm 0.40 7.20 mm 3.39 mm 2.42 mm 5.00 mm
355230   X X X   4.51 mm 0.55 6.30 mm 2.83 mmb 2.43 mmb 5.07 mm
A230 X X X X   4.51 mm 0.55 6.34 mm 2.91 mm 2.53 mm 4.95 mm
A390   X X     4.60 mm 0.53 6.00 mm 2.70 mm 1.64 mm 4.89 mm
354430     X X   5.00 mm 0.15 2.00 mm 4.37 mm 3.37 mm 1.60 mm
352170   X       6.16 mm 0.30 4.70 mm 4.38 mm 3.82 mm 3.70 mm
354171     X X   6.20 mm 0.30 4.70 mm 3.44 mmb 2.84 mmb 3.70 mm
352110         1064 4.51 mm 0.55 6.33 mm 2.92 mm 2.67 mm 4.95 mm
355110   X X X   6.24 mm 0.40 7.20 mm 2.69 mmb 1.59 mmb 5.00 mm
A110 X X X X   6.24 mm 0.40 7.20 mm 3.39 mm 2.39 mm 5.00 mm
A375   X X X   7.50 mm 0.30 6.51 mm 5.90 mm 5.59 mm 4.50 mm
352240   X X X 1064 8.00 mm 0.50 9.94 mm 5.92 mm 4.93 mm 8.00 mm
A240 X X X X   8.00 mm 0.50 9.94 mm 5.92 mm 4.79 mm 8.00 mm
A397   X X X   11.00 mm 0.30 7.20 mm 9.64 mm 8.44 mm 6.59 mm
A220 X X X     11.00 mm 0.26 7.20 mm 7.97 mm 6.91 mm 5.50 mm
352220         1064 11.00 mm 0.25 7.22 mm 7.97 mm 6.83 mm 5.50 mm
354220   X X X   11.00 mm 0.25 7.2 mm 6.91 mmb 5.81 mmb 5.50 mm
354560   X X X   13.86 mm 0.18 6.33 mm 12.11 mm 11.74 mm 5.10 mm
354260   X X X   15.29 mm 0.16 6.50 mm 12.73 mmb 12.43 mmb 5.00 mm
A260   X X X   15.29 mm 0.16 6.50 mm 14.09 mm 13.84 mm 5.00 mm
352280         1064 18.40 mm 0.15 6.50 mm 17.13 mm 16.75 mm 5.50 mm
354280   X X X   18.40 mm 0.15 6.5 mm 15.86 mmb 15.56 mmb 5.50 mm
A280   X X X   18.40 mm 0.15 6.50 mm 17.13 mm 16.88 mm 5.50 mm
  • The mounted working distance is measured from the edge of the unthreaded portion of the housing.
  • The working distance is measured to the edge of the laser diode window (instead of the emission point).
  • Image / Object
Click the Support Documentation icon document icon or Part Number below to view the available support documentation
Part Number Product Description
352140-A Support Documentation 352140-A : f = 1.45 mm, NA = 0.55, Unmounted Geltech Aspheric Lens, AR: 400-600 nm
352170-A Support Documentation 352170-A : f=6.16 mm, NA=0.3, Unmounted Geltech Aspheric Lens, AR: 400-600 nm
352240-A Support Documentation 352240-A : f = 8.0 mm, NA = 0.5, Unmounted Geltech Aspheric Lens, AR: 400-600 nm
352330-A Support Documentation 352330-A : f = 3.1 mm, NA = 0.68, Unmounted Geltech Aspheric Lens, AR: 400-600 nm
352440-A Support Documentation 352440-A : f = 2.95 mm, Unmounted Geltech Aspheric Lens, AR: 400-600 nm
352610-A Support Documentation 352610-A : f = 4.0mm NA = 0.60, Unmounted Geltech Aspheric Lens, AR: 400-600 nm
352671-A Support Documentation 352671-A : f = 4.02mm NA = 0.60, Unmounted Geltech Aspheric Lens, AR: 400-600 nm
352710-A Support Documentation 352710-A : f = 1.49mm, NA = 0.50, Unmounted Geltech Aspheric Lens, AR, AR: 400-600 nm
354220-A Support Documentation 354220-A : f = 11.0 mm, NA = 0.25, Unmounted Geltech Aspheric Lens, AR: 350-700 nm
354260-A Support Documentation 354260-A : f = 15.29 mm, NA = 0.16, Unmounted Geltech Aspheric Lens, AR: 350-700 nm
354280-A Support Documentation 354280-A : f = 18.40 mm, NA = 0.15, Unmounted Geltech Aspheric Lens, AR: 350-700 nm
354330-A Support Documentation 354330-A : f = 3.10 mm, NA = 0.68 Unmounted Geltech Aspheric Lens, AR: 350-700 nm
354340-A Support Documentation 354340-A : f = 4.03 mm NA = 0.64 Unmounted Geltech Aspheric Lens, AR: 350-700 nm
354560-A Support Documentation 354560-A : f = 13.86 mm, NA = 0.18, Unmounted Geltech Aspheric Lens, AR: 400-600 nm
354710-A Support Documentation 354710-A : f = 1.49 mm, NA = 0.53, Unmounted Geltech Aspheric Lens, AR: 350-700 nm
355110-A Support Documentation 355110-A : f = 6.24 mm, NA = 0.40, Unmounted Geltech Aspheric Lens, AR: 350-700 nm
355151-A Support Documentation 355151-A : f = 2.00 mm, NA = 0.50, Unmounted Geltech Aspheric Lens, AR: 350-700 nm
355230-A Support Documentation 355230-A : f = 4.51 mm NA = 0.55 Unmounted Geltech Aspheric Lens, AR: 350-700 nm
355390-A Support Documentation 355390-A : f = 2.75 mm, NA = 0.55, Unmounted Geltech Aspheric Lens, AR: 400-600 nm
355392-A Support Documentation 355392-A : f = 2.75 mm, NA = 0.64, Unmounted Geltech Aspheric Lens, AR: 400 - 600 nm
355660-A Support Documentation 355660-A : f = 2.97mm, NA=0.60, Unmounted Geltech Aspheric Lens, AR: 400-600 nm
A110-A Support Documentation A110-A : f = 6.24 mm, NA = 0.40, Unmounted Rochester Aspheric Lens, AR: 350-700 nm
A110TM-A Support Documentation A110TM-A : f = 6.24 mm, NA = 0.40, Mounted Rochester Aspheric Lens, AR: 350-700 nm
A220-A Support Documentation A220-A : f = 11.0 mm, NA = 0.26, Unmounted Rochester Aspheric Lens, AR: 350-700 nm
A220TM-A Support Documentation A220TM-A : f = 11.0 mm, NA = 0.26, Mounted Rochester Aspheric Lens, AR: 350-700 nm
A230-A Support Documentation A230-A : f = 4.51 mm, NA = 0.55, Unmounted Rochester Aspheric Lens, AR: 350-700 nm
A230TM-A Support Documentation A230TM-A : f = 4.51 mm, NA = 0.55, Mounted Rochester Aspheric Lens, AR: 350-700 nm
A240-A Support Documentation A240-A : f = 8.0 mm, NA = 0.5, Unmounted Rochester Aspheric Lens, AR: 350-700 nm
A240TM-A Support Documentation A240TM-A : f = 8.0 mm, NA = 0.5, Mounted Rochester Aspheric Lens, AR: 350-700 nm
A260-A Support Documentation A260-A : f = 15.29 mm, NA = 0.16, Unmounted Rochester Aspheric Lens, AR: 350-700 nm
A260TM-A Support Documentation A260TM-A : f = 15.29 mm, NA = 0.16, Mounted Rochester Asphere, AR: 350-700 nm
A280-A Support Documentation A280-A : f = 18.4 mm, NA = 0.15, Unmounted Rochester Aspheric Lens, AR: 350-700 nm
Part Number Product Description
A280TM-A Support Documentation A280TM-A : f = 18.4 mm, NA = 0.15, Mounted Rochester Aspheric Lens, AR: 350-700 nm
A375-A Support Documentation A375-A : f = 7.5 mm, NA = 0.3, Unmounted Rochester Aspheric Lens, AR: 350-700 nm
A375TM-A Support Documentation A375TM-A : f = 7.5 mm, NA = 0.3, Mounted Rochester Aspheric Lens, AR: 350-700 nm
A390-A Support Documentation A390-A : f = 4.6 mm, NA = 0.53, Unmounted Rochester Aspheric Lens, AR: 350-700 nm
A390TM-A Support Documentation A390TM-A : f = 4.6 mm, NA = 0.53, Mounted Rochester Aspheric Lens, AR: 350-700 nm
A397-A Support Documentation A397-A : f = 11.0 mm, NA = 0.3, Unmounted Rochester Aspheric Lens, AR: 350-700 nm
A397TM-A Support Documentation A397TM-A : f = 11.0 mm, NA = 0.3, Mounted Rochester Aspheric Lens, AR: 350-700 nm
A414-A Support Documentation A414-A : f = 3.3 mm, NA = 0.47 Unmounted Rochester Aspheric Lens, AR: 350-700 nm
A414TM-A Support Documentation A414TM-A : f = 3.3 mm, NA = 0.47 Mounted Rochester Aspheric Lens, AR: 350-700 nm
C110TMD-A Support Documentation C110TMD-A : f = 6.24 mm, NA = 0.40, Mounted Geltech Aspheric Lens, AR: 350-700 nm
C140TME-A Support Documentation C140TME-A : f = 1.45 mm, NA = 0.55, Mounted Geltech Aspheric Lens, AR: 400-600 nm
C151TMD-A Support Documentation C151TMD-A : f = 2.00 mm, NA = 0.50, Mounted Geltech Aspheric Lens, AR: 350-700 nm
C170TME-A Support Documentation C170TME-A : f = 6.16 mm, NA = 0.3, Mounted Geltech Aspheric Lens, AR: 400-600 nm
C220TMD-A Support Documentation C220TMD-A : f = 11.0 mm, NA = 0.25, Mounted Geltech Aspheric Lens, AR: 350-700 nm
C230TMD-A Support Documentation C230TMD-A : f = 4.51 mm NA = 0.55 Mounted Geltech Aspheric Lens, AR: 350-700 nm
C240TME-A Support Documentation C240TME-A : f = 8.0 mm, NA = 0.5, Mounted Geltech Aspheric Lens, AR: 400-600 nm
C260TMD-A Support Documentation C260TMD-A : f = 15.29 mm, NA = 0.16, Mounted Geltech Aspheric Lens, AR: 350-700 nm
C280TMD-A Support Documentation C280TMD-A : f = 18.40 mm, NA = 0.15, Mounted Geltech Aspheric Lens, AR: 350-700 nm
C330TMD-A Support Documentation C330TMD-A : f = 3.10 mm, NA = 0.68 Mounted Geltech Aspheric Lens, AR: 350-700 nm
C330TME-A Support Documentation C330TME-A : f = 3.1 mm, NA = 0.68, Mounted Geltech Aspheric Lens, AR: 400-600 nm
C340TMD-A Support Documentation C340TMD-A : f = 4.03 mm NA = 0.64 Mounted Geltech Aspheric Lens, AR: 350-700 nm
C390TME-A Support Documentation C390TME-A : f = 2.75 mm, NA = 0.55, Mounted Geltech Aspheric Lens, AR: 400-600 nm
C392TME-A Support Documentation C392TME-A : f = 2.75 mm, NA = 0.64, Unmounted Geltech Aspheric Lens, AR: 400 - 600 nm
C440TME-A Support Documentation C440TME-A : f = 2.95 mm, Mounted Geltech Aspheric Lens, AR: 400-600 nm
C560TME-A Support Documentation C560TME-A : f = 13.86 mm, NA = 0.18, Mounted Geltech Aspheric Lens, AR: 400-600 nm
C610TME-A Support Documentation C610TME-A : f = 4.0mm NA = 0.60, Mounted Geltech Aspheric Lens, AR: 400-600 nm
C660TME-A Support Documentation C660TME-A : f = 2.97 mm, NA = 0.60, Mounted Geltech Aspheric Lens, AR: 400-600 nm
C671TME-A Support Documentation C671TME-A : f = 4.02mm NA = 0.60, Mounted Geltech Aspheric Lens, AR: 400-600 nm
C710TMD-A Support Documentation C710TMD-A : f = 1.49 mm, NA = 0.53, Mounted Geltech Aspheric Lens, AR: 350-700 nm
C710TME-A Support Documentation C710TME-A : f = 1.49 mm, NA = 0.50, Mounted Geltech Aspheric Lens, AR, AR: 400-600 nm
N414-A Support Documentation N414-A : f = 3.3 mm, NA = 0.47 Unmounted Rochester Aspheric Lens, AR: 350-700 nm
N414TM-A Support Documentation N414TM-A : f = 3.3 mm, NA = 0.47 Mounted Rochester Aspheric Lens, AR: 350-700 nm

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Posted Comments:
Poster: jlow
Posted Date: 2014-01-08 05:10:48.0
Response from Jeremy at Thorlabs: At 580nm, the estimated MFD of the 460HP fiber is around 3.9µm nominally. Therefore, the ideal focal length lens would have around 6.8mm focal length. Using that number, the closest focal length asphere that would give you the best theoretical coupling efficiency would be the A375-A (7.5mm focal length). However, the difference with using the 6.24mm focal length asphere is relatively small (<0.5% absolute). For the collimation on the other end, it depends on the beam diameter and beam divergence you are looking to have on the output. Longer focal length would give you larger beam diameter and smaller beam divergence. You can use the same focal length lens on the output as well.
Poster: moritz.kick
Posted Date: 2014-01-07 15:25:08.0
Hi, we want to couple a laser beam into and out of a fiber. The wavelength is 580 nm, we use the 460-HP fiber (MFD 3.5µm) and the Collimated Beam Diameter prior to Lens is about 1.3 mm. I calculated f as 6.16 so the best aspheric lens for coupling the light into the fiber would be the item 352170-A. Is this correct so far? But what kind of lense do I need to collimate the beam past the fiber. Can I use the same lense for both sides? Thanks for your support
Poster: tcohen
Posted Date: 2012-09-04 10:05:00.0
Response from Tim at Thorlabs: Thank you for contacting us. For the most efficiency in our support, a member of our China support team will contact you directly.
Poster: houshannanhai
Posted Date: 2012-09-04 03:28:27.0
??,????????????0.22,???1.5mm??????532nm?????,???????????40mm????????????????????????????????????(working distance)????????,?????????????????,???????qq??????
Poster: bdada
Posted Date: 2011-11-14 23:47:00.0
Response from Buki at Thorlabs.com Thank you for participating in our Feedback Forum. We can provide custom coatings on our lenses. We have contacted you to get more information from you in order to provide a quote.
Poster: c2hollow
Posted Date: 2011-11-14 15:14:57.0
Is it possible to get the C330TME-A with 405nm V-coating?
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EFL = 1.xx mm

Item #
(Unmounted/
Mounted)
InfoEFLaNACAWDbDWODGlassAR RangeMPerformanceThreadSuggested
Spanner
Wrench
352140-A info icon 1.45 mm 0.55 1.60 mm 0.88 mm 780 nm 2.40 mm ECO-550 400 - 600 nm 140_Asph.pdf - -
C140TME-A 0.88 mm 6.21 mm M6 x 0.5 SPW306
354710-A info icon 1.49 mm 0.53 1.50 mm 0.52 mm 1550 nm 2.7 mm D-ZK3 350 - 700 nmc Focal Shift
Spot Size Cross Section
- -
C710TMD-A 0.42 mm 6.2 mm M6 x 0.5 SPW306

OD = Outer Diameter
M = Magnification

WD = Working Distance
DW = Design Wavelength

EFL = Effective Focal Length
NA = Numerical Aperture
CA = Clear Aperture

  • EFL is specified at the design wavelength for the unmounted lens.
  • WD is specified at the design wavelength.
  • These Geltech Lenses feature an improved AR coating range of 350 - 700 nm.
Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Universal/Imperial Price Available / Ships
352140-A Support Documentation
352140-A f = 1.45 mm, NA = 0.55, Unmounted Geltech Aspheric Lens, AR: 400-600 nm
$69.00
Today
C140TME-A Support Documentation
C140TME-A f = 1.45 mm, NA = 0.55, Mounted Geltech Aspheric Lens, AR: 400-600 nm
$74.00
Today
354710-A Support Documentation
354710-A NEW! f = 1.49 mm, NA = 0.53, Unmounted Geltech Aspheric Lens, AR: 350-700 nm
$58.33
Today
C710TMD-A Support Documentation
C710TMD-A NEW! f = 1.49 mm, NA = 0.53, Mounted Geltech Aspheric Lens, AR: 350-700 nm
$77.50
Today

EFL = 2.xx mm

Item #
(Unmounted/
Mounted)
InfoEFLaNACAWDbDWODGlassAR RangeMPerformanceThreadSuggested
Spanner
Wrench
355151-A info icon 2.00 mm 0.50 2.00 mm 0.48 mmc 780 nm 3.0 mm D-ZLaF52LA 350 - 700 nmd Focal Shift
Spot Size Cross Section
- -
C151TME-A 0.28 mmc 6.2 mm M6 x 0.5 SPW306
355390-A info icon 2.75 mm 0.55 3.60 mm 2.16 mm 830 nm 4.50 mm D-ZLAF52LA 400 - 600 nm 390_Asph.pdf - -
C390TME-A 1.91 mm 8.21 mm M8 x 0.5 SPW308
355392-A info icon 2.75 mm 0.64 3.60 mm 1.50 mm 830 nm 4.0 mm D-ZLAF52LA 400 - 600 nm 392_Asph.pdf - -
C392TME-A 0.98 mm 6.2 mm M6 x 0.5 SPW306
352440-A info icon 2.95 mm 0.27e
0.53f
4.20 mme
4.00 mmf
6.91 mme
2.66 mmf
980 nm 4.7 mm ECO-550 400 - 600 nm 2 440_Asph.pdf - -
C440TME-A 5.04 mme
2.84 mmf
8.24 mm M8 x 0.5 SPW308
355660-A info icon 2.97 mm 0.60 3.60 mm 1.56 mm 1550 nm 4.00 mm D-ZLAF52LA 400 - 600 nm 660_Asph.pdf - -
C660TME-A 1.31 mm 8.2 mm M8 x 0.5 SPW308

OD = Outer Diameter 
M = Magnification

WD = Working Distance
DW = Design Wavelength

EFL = Effective Focal Length
NA = Numerical Aperture
CA = Clear Aperture

  • EFL is specified at the design wavelength for the unmounted lens.
  • WD is specified at the design wavelength.
  • This working distance is measured from the lens to the window of the laser diode being collimated (not the emission point).
  • These Geltech Lenses feature an improved AR coating range of 350 - 700 nm.
  • Image side.
  • Object side.
Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Universal/Imperial Price Available / Ships
355151-A Support Documentation
355151-A f = 2.00 mm, NA = 0.50, Unmounted Geltech Aspheric Lens, AR: 350-700 nm
$53.33
Today
C151TMD-A Support Documentation
C151TMD-A f = 2.00 mm, NA = 0.50, Mounted Geltech Aspheric Lens, AR: 350-700 nm
$79.17
Today
355390-A Support Documentation
355390-A f = 2.75 mm, NA = 0.55, Unmounted Geltech Aspheric Lens, AR: 400-600 nm
$69.00
Today
C390TME-A Support Documentation
C390TME-A f = 2.75 mm, NA = 0.55, Mounted Geltech Aspheric Lens, AR: 400-600 nm
$74.00
Today
355392-A Support Documentation
355392-A Customer Inspired! f = 2.75 mm, NA = 0.64, Unmounted Geltech Aspheric Lens, AR: 400 - 600 nm
$69.00
Today
C392TME-A Support Documentation
C392TME-A Customer Inspired! f = 2.75 mm, NA = 0.64, Unmounted Geltech Aspheric Lens, AR: 400 - 600 nm
$74.00
Today
352440-A Support Documentation
352440-A f = 2.95 mm, Unmounted Geltech Aspheric Lens, AR: 400-600 nm
$69.00
Today
C440TME-A Support Documentation
C440TME-A f = 2.95 mm, Mounted Geltech Aspheric Lens, AR: 400-600 nm
$74.00
Today
355660-A Support Documentation
355660-A f = 2.97mm, NA=0.60, Unmounted Geltech Aspheric Lens, AR: 400-600 nm
$82.00
Today
C660TME-A Support Documentation
C660TME-A f = 2.97 mm, NA = 0.60, Mounted Geltech Aspheric Lens, AR: 400-600 nm
$87.00
Today

EFL = 3.xx mm

Item #
(Unmounted/
Mounted)
InfoEFLaNACAWDbDWODGlassAR RangeMPerformanceThreadSuggested
Spanner
Wrench
354330-A info icon 3.10 mm 0.68 5.00 mm 1.76 mm 830 nm 6.3 mm D-ZK3 350 - 700 nmc Focal Shift
Spot Size Cross Section
- -
C330TMD-A 1.76 mm 9.2 mm M9 x 0.5 SPW301
A414-A
info icon 3.30 mm 0.47 3.52 mm 1.94 mm 670 nm 4.50 mm N-SF57 350 - 700 nmc A414_Asph.pdf - -
A414TM-A 1.81 mm 6.22 mm M6 x 0.5 SPW306
N414-A info icon 3.30 mm 0.47 3.52 mm 1.94 mm 670 nm 4.50 mm H-ZLAF52 350 - 700 nmc N414_Asph.pdf - -
N414TM-A 1.83 mm 6.22 mm M6 x 0.5 SPW306

OD = Outer Diameter

WD = Working Distance
DW = Design Wavelength

EFL = Effective Focal Length
NA = Numerical Aperture
CA = Clear Aperture

  • EFL is specified at the design wavelength for the unmounted lens.
  • WD is specified at the design wavelength.
  • These Geltech Lenses feature an improved AR coating range of 350 - 700 nm. Please note that D-ZK3, N-SF57, and H-ZLAF52 provide poor transmittance in the UV (click on the Glass link for details).
Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Universal/Imperial Price Available / Ships
354330-A Support Documentation
354330-A f = 3.10 mm, NA = 0.68 Unmounted Geltech Aspheric Lens, AR: 350-700 nm
$58.33
Today
C330TMD-A Support Documentation
C330TMD-A f = 3.10 mm, NA = 0.68 Mounted Geltech Aspheric Lens, AR: 350-700 nm
$72.50
Today
A414-A Support Documentation
A414-A f = 3.3 mm, NA = 0.47 Unmounted Rochester Aspheric Lens, AR: 350-700 nm
$81.55
3-5 Days
A414TM-A Support Documentation
A414TM-A f = 3.3 mm, NA = 0.47 Mounted Rochester Aspheric Lens, AR: 350-700 nm
$86.55
Lead Time
N414-A Support Documentation
N414-A f = 3.3 mm, NA = 0.47 Unmounted Rochester Aspheric Lens, AR: 350-700 nm
$81.55
Today
N414TM-A Support Documentation
N414TM-A f = 3.3 mm, NA = 0.47 Mounted Rochester Aspheric Lens, AR: 350-700 nm
$86.55
Today

EFL = 4.xx mm

Item #(Unmounted/
Mounted)
InfoEFLaNACAWDbDWODGlassAR RangeMPerformanceThreadSuggested
Spanner
Wrench
352610-A info icon 4.00 mm 0.60 4.80 mm 2.73 mm 410 nm 6.33 mm ECO-550 400 - 600 nm 610_Asph.pdf - -
C610TME-A 2.44 mm 9.24 mm M9 x 0.5 SPW301
352671-A info icon 4.02 mm 0.60 4.80 mm 2.37 mm 408 nm 6.33 mm ECO-550 400 - 600 nm 671_Asph.pdf - -
C671TME-A 2.13 mm 9.24 mm M9 x 0.5 SPW301
354340-A info icon 4.03 mm 0.64 5.10 mm 1.48 mmc 685 nm 6.3 mm D-ZK3 350 - 700 nmd Focal Shift
Spot Size Cross Section
- -
C340TMD-A 1.18 mmc 9.2 mm M9 x 0.5 SPW301
355230-A info icon 4.51 mm 0.55 5.07 mm 2.83 mmc 780 nm 6.3 mm D-ZLaF52LA 350 - 700 nme Focal Shift
Spot Size Cross Section
- -
C230TMD-A 2.43 mmc 9.2 mm M9 x 0.5 SPW301
A230-A info icon 4.51 mm 0.55 4.95 mm 2.91 mm 780 nm 6.33 mm S-NPH1 350 - 700 nmd A230_Asph.pdf - -
A230TM-A 2.53 mm 9.24 mm M9 x 0.5 SPW301
A390-A info icon 4.60 mm 0.53 4.89 mm 2.70 mm 655 nm 6.00 mm H-LAK54 350 - 700 nmd A390_Asph.pdf - -
A390TM-A 1.64 mm 9.24 mm M9 x 0.5 SPW301

OD = Outer Diameter
M = Magnification

WD = Working Distance
DW = Design Wavelength

EFL = Effective Focal Length
NA = Numerical Aperture
CA = Clear Aperture

  • EFL is specified at the design wavelength for the unmounted lens.
  • WD is specified at the design wavelength.
  • This working distance is measured from the lens to the window of the laser diode being collimated (not the emission point).
  • The AR coating is designed for 350 - 700 nm, but S-NPH1, H-LAK54, and D-ZK3 have poor transmittance in the UV (click on the Glass link for details).
  • These Geltech Lenses feature an improved AR coating range of 350 - 700 nm.
Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Universal/Imperial Price Available / Ships
352610-A Support Documentation
352610-A f = 4.0mm NA = 0.60, Unmounted Geltech Aspheric Lens, AR: 400-600 nm
$82.00
Today
C610TME-A Support Documentation
C610TME-A f = 4.0mm NA = 0.60, Mounted Geltech Aspheric Lens, AR: 400-600 nm
$87.00
Today
352671-A Support Documentation
352671-A f = 4.02mm NA = 0.60, Unmounted Geltech Aspheric Lens, AR: 400-600 nm
$113.00
Today
C671TME-A Support Documentation
C671TME-A f = 4.02mm NA = 0.60, Mounted Geltech Aspheric Lens, AR: 400-600 nm
$118.00
Today
354340-A Support Documentation
354340-A f = 4.03 mm NA = 0.64 Unmounted Geltech Aspheric Lens, AR: 350-700 nm
$58.33
Today
C340TMD-A Support Documentation
C340TMD-A f = 4.03 mm NA = 0.64 Mounted Geltech Aspheric Lens, AR: 350-700 nm
$72.50
Today
355230-A Support Documentation
355230-A f = 4.51 mm NA = 0.55 Unmounted Geltech Aspheric Lens, AR: 350-700 nm
$50.00
Today
C230TMD-A Support Documentation
C230TMD-A f = 4.51 mm NA = 0.55 Mounted Geltech Aspheric Lens, AR: 350-700 nm
$64.17
Today
A230-A Support Documentation
A230-A f = 4.51 mm, NA = 0.55, Unmounted Rochester Aspheric Lens, AR: 350-700 nm
$74.00
Today
A230TM-A Support Documentation
A230TM-A f = 4.51 mm, NA = 0.55, Mounted Rochester Aspheric Lens, AR: 350-700 nm
$79.00
Today
A390-A Support Documentation
A390-A f = 4.6 mm, NA = 0.53, Unmounted Rochester Aspheric Lens, AR: 350-700 nm
$81.55
Today
A390TM-A Support Documentation
A390TM-A f = 4.6 mm, NA = 0.53, Mounted Rochester Aspheric Lens, AR: 350-700 nm
$86.55
Today

EFL = 6.xx mm

Item #(Unmounted/
Mounted)
InfoEFLaNACAWDbDWODGlassAR RangeMPerformanceThreadSuggested
Spanner
Wrench
352170-A info icon 6.16 mm 0.30 3.70 mm 4.38 mm 780 nm 4.70 mm ECO-550 400 - 600 nm 170_Asph.pdf - -
C170TME-A 3.82 mm 8.24 mm M8 x 0.5 SPW308
355110-A info icon 6.24 mm 0.40 5.00 mm 2.69 mmd 780 nm 7.2 mm D-ZLaF52LA 350 - 700 nm Focal Shift
Spot Size Cross Section
- -
C110TMD-A 1.59 mmd 9.2 mm M9 x 0.5 SPW301
A110-A info icon 6.24 mm 0.40 5.00 mm 3.39 mm 780 nm 7.20 mm H-LAK54 350 - 700 nmc A110_Asph.pdf - -
A110TM-A 2.39 mm 9.24 mm M9 x 0.5 SPW301

OD = Outer Diameter
M = Magnification

WD = Working Distance
DW = Design Wavelength

EFL = Effective Focal Length
NA = Numerical Aperture
CA = Clear Aperture

  • EFL is specified at the design wavelength for the unmounted lens.
  • WD is specified at the design wavelength.
  • The AR coating is designed for 350 - 700 nm, but H-LAK54 has poor transmittance in the UV (click on the Glass link for details).
  • This working distance is measured from the lens to the window of the laser diode being collimated (not the emission point).
Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Universal/Imperial Price Available / Ships
352170-A Support Documentation
352170-A f=6.16 mm, NA=0.3, Unmounted Geltech Aspheric Lens, AR: 400-600 nm
$74.00
Today
C170TME-A Support Documentation
C170TME-A f = 6.16 mm, NA = 0.3, Mounted Geltech Aspheric Lens, AR: 400-600 nm
$79.00
Today
355110-A Support Documentation
355110-A f = 6.24 mm, NA = 0.40, Unmounted Geltech Aspheric Lens, AR: 350-700 nm
$66.67
Today
C110TMD-A Support Documentation
C110TMD-A f = 6.24 mm, NA = 0.40, Mounted Geltech Aspheric Lens, AR: 350-700 nm
$80.83
Today
A110-A Support Documentation
A110-A f = 6.24 mm, NA = 0.40, Unmounted Rochester Aspheric Lens, AR: 350-700 nm
$74.00
Today
A110TM-A Support Documentation
A110TM-A f = 6.24 mm, NA = 0.40, Mounted Rochester Aspheric Lens, AR: 350-700 nm
$79.00
Today

EFL = 7.50 mm

Item #
(Unmounted/
Mounted)
InfoEFLaNACAWDbDWODGlassAR RangeMPerformanceThreadSuggested
Spanner
Wrench
A375-A info icon 7.50 mm 0.30 4.50 mm 5.90 mm 810 nm 6.51 mm H-LAK54 350 - 700 nmc A375_Asph.pdf - -
A375TM-A 5.59 mm 9.24 mm M9 x 0.5 SPW301

OD = Outer Diameter
M = Magnification

WD = Working Distance
DW = Design Wavelength

EFL = Effective Focal Length
NA = Numerical Aperture
CA = Clear Aperture

  • EFL is specified at the design wavelength for the unmounted lens.
  • WD is specified at the design wavelength.
  • The AR coating is designed for 350 - 700 nm, but H-LAK54 has poor transmittance in the UV (click on the Glass link for details).
Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Universal/Imperial Price Available / Ships
A375-A Support Documentation
A375-A f = 7.5 mm, NA = 0.3, Unmounted Rochester Aspheric Lens, AR: 350-700 nm
$81.55
Today
A375TM-A Support Documentation
A375TM-A f = 7.5 mm, NA = 0.3, Mounted Rochester Aspheric Lens, AR: 350-700 nm
$86.55
Today

EFL = 8.00 mm

Item #
(Unmounted/
Mounted)
InfoEFLaNACAWDbDWODGlassAR RangeMPerformanceThreadSuggested
Spanner Wrench
352240-A info icon 8.00 mm 0.50 8.00 mm 5.92 mm 780 nm 9.94 mm ECO-550 400 - 600 nm 240_Asph.pdf - -
C240TME-A 4.93 mm 12.24 mm M12 x 0.5 SPW302
A240-A info icon 8.00 mm 0.50 8.00 mm 5.92 mm 780 nm 9.94 mm D-LAK6 350 - 700 nmc A240_Asph.pdf - -
A240TM-A 4.79 mm 12.24 mm M12 x 0.5 SPW302

OD = Outer Diameter
M = Magnification

WD = Working Distance
DW = Design Wavelength

EFL = Effective Focal Length
NA = Numerical Aperture
CA = Clear Aperture

  • EFL is  specified at the design wavelength for the unmounted lens.
  • WD is specified at the design wavelength.
  • The AR coating is designed for 350 - 700 nm, but S-LAL13 has poor transmittance in the UV (click on the Glass link for details).
Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Universal/Imperial Price Available / Ships
352240-A Support Documentation
352240-A f = 8.0 mm, NA = 0.5, Unmounted Geltech Aspheric Lens, AR: 400-600 nm
$74.00
Today
C240TME-A Support Documentation
C240TME-A f = 8.0 mm, NA = 0.5, Mounted Geltech Aspheric Lens, AR: 400-600 nm
$79.00
Today
A240-A Support Documentation
A240-A f = 8.0 mm, NA = 0.5, Unmounted Rochester Aspheric Lens, AR: 350-700 nm
$74.00
Today
A240TM-A Support Documentation
A240TM-A f = 8.0 mm, NA = 0.5, Mounted Rochester Aspheric Lens, AR: 350-700 nm
$79.00
Today

EFL = 11.00 mm

Item #
(Unmounted/
Mounted)
InfoEFLaNACAWDbDWODGlassAR RangeMPerformanceThreadSuggested
Spanner
Wrench
A397-A info icon 11.00 mm 0.30 6.59 mm 9.64 mm 670 nm 7.20 mm H-LAK54 350 - 700 nmc A397_Asph.pdf - -
A397TM-A
8.44 mm 9.24 mm M9 x 0.5 SPW301
A220-A info icon 11.00 mm 0.26 5.50 mm 7.97 mm 633 nm 7.20 mm D-K59 350 - 700 nmc A220_Asph.pdf - -
A220TM-A
6.91 mm 9.24 mm M9 x 0.5 SPW301
354220-A info icon 11.00 mm 0.25 5.50 mm 6.91 mmd 633 nm 7.2 mm D-ZK3 350 - 700 nmc Focal Shift
Spot Size Cross Section
- -
C220TMD-A
5.81 mm 8.4 mm M9 x 0.5 SPW301

OD = Outer Diameter
M = Magnification

WD = Working Distance
DW = Design Wavelength

EFL = Effective Focal Length
NA = Numerical Aperture
CA = Clear Aperture

  • EFL is specified at the design wavelength for the unmounted lens.
  • WD is specified at the design wavelength.
  • The AR coating is designed for 350 - 700 nm, but H-LAK54, D-K59, and D-ZK3 have poor transmittance in the UV (click on the Glass link for details).
  • This working distance is measured from the lens to the window of the laser diode being collimated (not the emission point).
Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Universal/Imperial Price Available / Ships
A397-A Support Documentation
A397-A f = 11.0 mm, NA = 0.3, Unmounted Rochester Aspheric Lens, AR: 350-700 nm
$81.55
Today
A397TM-A Support Documentation
A397TM-A f = 11.0 mm, NA = 0.3, Mounted Rochester Aspheric Lens, AR: 350-700 nm
$86.55
Today
A220-A Support Documentation
A220-A f = 11.0 mm, NA = 0.26, Unmounted Rochester Aspheric Lens, AR: 350-700 nm
$74.00
Today
A220TM-A Support Documentation
A220TM-A f = 11.0 mm, NA = 0.26, Mounted Rochester Aspheric Lens, AR: 350-700 nm
$79.00
Today
354220-A Support Documentation
354220-A f = 11.0 mm, NA = 0.25, Unmounted Geltech Aspheric Lens, AR: 350-700 nm
$53.33
Today
C220TMD-A Support Documentation
C220TMD-A f = 11.0 mm, NA = 0.25, Mounted Geltech Aspheric Lens, AR: 350-700 nm
$67.50
Today

EFL = 13.86 mm

Item #
(Unmounted/
Mounted)
InfoEFLaNACAWDbDWODGlassAR RangeMPerformanceThreadSuggested
Spanner
Wrench
354560-A info icon 13.86 mm 0.18 5.10 mm 12.11 mm 650 nm 6.33 mm D-ZK3 400 - 600 nm 560_Asph.pdf - -
C560TME-A 11.74 mm 9.24 mm M9 x 0.5 SPW301

OD = Outer Diameter
M = Magnification

WD = Working Distance
DW = Design Wavelength

EFL = Effective Focal Length
NA = Numerical Aperture
CA = Clear Aperture

  • EFL is specified at the design wavelength for the unmounted lens.
  • WD is specified at the design wavelength.
Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Universal/Imperial Price Available / Ships
354560-A Support Documentation
354560-A f = 13.86 mm, NA = 0.18, Unmounted Geltech Aspheric Lens, AR: 400-600 nm
$74.00
Today
C560TME-A Support Documentation
C560TME-A f = 13.86 mm, NA = 0.18, Mounted Geltech Aspheric Lens, AR: 400-600 nm
$79.00
Today

EFL = 15.29 mm

Item #
(Unmounted/
Mounted)
InfoEFLaNACAWDbDWODGlassAR RangeMPerformanceThreadSuggested
Spanner
Wrench
354260-A info icon 15.29 mm 0.16 5.00 mm 12.73 mmc 780 nm 6.5 mm D-ZK3 350 - 700 nmd Focal Shift
Spot Size Cross Section
- -
C260TMD-A 12.43 mmc 9.2 mm M9 x 0.5 SPW301
A260-A info icon 15.29 mm 0.16 5.00 mm 14.09 mm 780 nm 6.50 mm H-LAK54 350 - 700 nmd A260_Asph.pdf - -
A260TM-A 13.84 mm 9.24 mm M9 x 0.5 SPW301

OD = Outer Diameter
M = Magnification

WD = Working Distance
DW = Design Wavelength

EFL = Effective Focal Length
NA = Numerical Aperture
CA = Clear Aperture

  • EFL is specified at the design wavelength for the unmounted lens.
  • WD is specified at the design wavelength.
  • This working distance is measured from the lens to the window of the laser diode being collimated (not the emission point).
  • The AR coating is designed for 350 - 700 nm, but H-LAK54 and D-ZK3 have poor transmittance in the UV (click on the Glass link for details).
Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Universal/Imperial Price Available / Ships
354260-A Support Documentation
354260-A f = 15.29 mm, NA = 0.16, Unmounted Geltech Aspheric Lens, AR: 350-700 nm
$58.33
Today
C260TMD-A Support Documentation
C260TMD-A f = 15.29 mm, NA = 0.16, Mounted Geltech Aspheric Lens, AR: 350-700 nm
$75.00
Today
A260-A Support Documentation
A260-A f = 15.29 mm, NA = 0.16, Unmounted Rochester Aspheric Lens, AR: 350-700 nm
$74.00
Today
A260TM-A Support Documentation
A260TM-A f = 15.29 mm, NA = 0.16, Mounted Rochester Asphere, AR: 350-700 nm
$79.00
Today

EFL = 18.40 mm

Item #
(Unmounted/
Mounted)
InfoEFLaNACAWDbDWODGlassAR RangeMPerformanceThreadSuggested
Spanner
Wrench
354280-A info icon 18.40 mm 0.15 5.50 mm 15.86 mmc 780 nm 6.5 mm D-ZK3 350 - 700 nmd,e Focal Shift
Spot Size Cross Section
- -
C280TMD-A 15.56 mmc 9.2 mm M9 x 0.5 SPW301
A280-A info icon 18.40 mm 0.15 5.50 mm 17.13 mm 780 nm 6.50 mm H-LAK54 350 - 700 nmd A280_Asph.pdf - -
A280TM-A 16.88 mm 9.24 mm M9 x 0.5 SPW301

OD = Outer Diameter
M = Magnification

WD = Working Distance
DW = Design Wavelength

EFL = Effective Focal Length
NA = Numerical Aperture
CA = Clear Aperture

  • EFL is specified at the design wavelength for the unmounted lens.
  • WD is specified at the design wavelength.
  • This working distance is measured from the lens to the window of the laser diode being collimated (not the emission point).
  • The AR coating is designed for 350 - 700 nm, but H-LAK54 and D-ZK3 have poor transmittance in the UV (click on the Glass link for details).
  • These Geltech Lenses feature an improved AR coating range of 350 - 700 nm.
Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Universal/Imperial Price Available / Ships
354280-A Support Documentation
354280-A f = 18.40 mm, NA = 0.15, Unmounted Geltech Aspheric Lens, AR: 350-700 nm
$58.33
Today
C280TMD-A Support Documentation
C280TMD-A f = 18.40 mm, NA = 0.15, Mounted Geltech Aspheric Lens, AR: 350-700 nm
$75.00
Today
A280-A Support Documentation
A280-A f = 18.4 mm, NA = 0.15, Unmounted Rochester Aspheric Lens, AR: 350-700 nm
$74.00
Today
A280TM-A Support Documentation
A280TM-A f = 18.4 mm, NA = 0.15, Mounted Rochester Aspheric Lens, AR: 350-700 nm
$79.00
Today
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