Products Home / Optical Elements / Optical Lenses / Cylindrical Lenses / Plano-Concave Cylindrical Lenses, N-BK7, UncoatedPlano-Concave Cylindrical Lenses, N-BK7, Uncoated
- Ideal for Applications Requiring Magnification in One Dimension
- Provide Anamorphic Shaping of Images
- Used to Transform a Collimated Beam into a Line
LK1836L2
LK1526L1
LK1982L2
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| Uncoated Plano-Concave Cylindrical Lensesa | ||
|---|---|---|
| Material | N-BK7b | |
| Uncoated Wavelength Rangec | 350 nm - 2.0 µm | |
| Design Wavelength | 587.6 nm | |
| Length Tolerance | +0.00 / -0.10 mm | |
| Height Tolerance | +0.00 / -0.10 mm | |
| Center Thickness Tolerance | ±0.1 mm | |
| Focal Length Tolerance | ±1% | |
| Surface Quality | 60-40 Scratch/Dig | |
| Centration | For f ≤50 mm: ≤5 arcmin For f >50 mm: ≤3 arcmin |
|
| Surface Flatness (Plano Side) |
Height | λ/2 |
| Length | λ/2 | |
| Cylindrical Surface Powerd (Concave Side) |
Height | 3λ/2 |
| Length | 3λ/2 | |
| Surface Irregularity (Peak to Valley) |
Height (Plano, Curved) | λ/4, λ |
| Length (Plano, Curved) | λ/4, λ/cm | |
| Clear Aperture | >90% of Surface Dimensions | |
Features
- Made of N-BK7 Glass
- Uncoated Wavelength Range: 350 nm - 2.0 µm
- Focal Lengths from -3.91 mm to -1000.00 mm
- Focal Length Tolerance: ±1%
Negative cylindrical lenses act as plano-concave spherical lenses, except on only one axis. These lenses are used in applications that require one dimensional shaping of a light source. A typical application is to use a single cylindrical lens to turn a collimated laser into a line generator. Pairs of cylindrical lenses may be used to anamorphically shape images. To minimize the introduction of aberration, the curved surface of the lens should face the source when used to diverge a beam.
These N-BK7 Plano-Concave Cylindrical lenses are available uncoated or with one of three Antireflection Coatings, which can reduce the amount of light reflected from each surface of the lens. The uncoated lenses are highlighted on this page. Lenses with a -A (350 - 700 nm range), -B (650 - 1050 nm range), or -C (1050 - 1700 nm range) antireflection coating are featured elsewhere. Please see the Graphs tab for coating information.
For cage system and lens tube compatibility, please see our Mounted Plano-Concave Round Cylindrical lenses. These lenses are typically easier to integrate into our standard optomechanics.
 Zemax Files |
|---|
| Click on the red Document icon next to the item numbers below to access the Zemax file download. Our entire Zemax Catalog is also available. |
| Plano-Concave Cylindrical Lens Selection Guide | ||||
|---|---|---|---|---|
| Substrate | N-BK7 | UV Fused Silica | N-BK7 (Round) |
UV Fused Silica (Round) |
| AR Coating Range |
Uncoated 350 - 700 nm 650 - 1050 nm 1050 - 1700 nm |
Uncoated 245 - 400 nm 350 - 700 nm 650 - 1050 nm 1050 - 1700 nm |
Uncoated 350 - 700 nm 650 - 1050 nm 1050 - 1700 nm |
Uncoated 350 - 700 nm 650 - 1050 nm 1050 - 1700 nm |
All cylindrical lenses can be ordered uncoated and the cylindrical lenses made from N-BK7 can be ordered with one of the following broadband AR coatings:
-A: 350-700 nm, -B: 650-1050 nm, or -C: 1050-1700 nm
These high performance multilayer AR coatings have an average reflectance of less than 0.5% (per surface) across the specified wavelength ranges. The central peak in each curve is less than 0.25%. These coatings provide good performance for angles of incidence (AOI) between 0° and 30° (0.5 NA). For optics intended to be used at large angles, consider using a custom coating optimized at a 45° angle of incidence; this custom coating is effective from 25° to 52°. The Broadband AR Coatings plot indicates the performance of the standard coatings in this family as a function of wavelength.
| Posted Comments: | |
Vladimir Chvykov
(posted 2019-04-18 16:38:55.99) Dears
I would like to order the cylindrical lens like below, but I need bigger focal length F=2000 mm or R=1000 mm. If it possible, how much will it cost and what is the time delivery.
LK1002L1 f=-1000 mm, H=30 mm, L=32 mm, N-BK7 Plano-Concave Cylindrical Lens, Uncoated nbayconich
(posted 2019-04-19 09:28:54.0) Thank you for contacting Thorlabs. We can offer custom lenses upon request through our techsupport department. I will reach out to you directly to discuss our custom capabilities.
For future reference any custom requests can be sent directly to techsupport@thorlabs.com. andre.chagas
(posted 2013-11-06 14:33:07.74) Hello,
I'm in need of a plano-concave lens. This lens is to be placed on top of a sensor that measures 33mmX5mm (heightXlength). Although models LK1431L1 and LK1792L1 would serve my purpose, I wonder if there aren't any models with the same height but with different length.
Thanks in advance and best regards,
André pbui
(posted 2013-11-14 03:35:37.0) Response from Phong at Thorlabs: We will contact you directly to explore the possibility of offering this custom lens. |
| Item # | Focal Lengtha |
Length | Height | Radius | Center Thickness |
Edge Thickness |
Back Focal Length |
Reference Drawing |
|---|---|---|---|---|---|---|---|---|
| LK1395L1 | -3.91 mm | 6.0 mm | 4.0 mm | -2.0 mm | 2.0 mm | 2.7 mm | -5.2 mm |  |
| LK1597L2 | -4.01 mm | 8.0 mm | 4.0 mm | -2.1 mm | 2.0 mm | 2.6 mm | -5.3 mm | |
| LK1523L1 | -5.79 mm | 6.0 mm | 4.0 mm | -3.0 mm | 2.0 mm | 2.4 mm | -7.1 mm | |
| LK1087L1 | -6.35 mm | 8.0 mm | 6.0 mm | -3.3 mm | 2.0 mm | 3.2 mm | -7.7 mm | |
| LK1087L2 | 12.0 mm | |||||||
| LK1363L2 | -7.70 mm | 14.0 mm | 7.0 mm | -4.0 mm | 2.0 mm | 3.4 mm | -9.0 mm | |
| LK1836L1 | -9.69 mm | 12.0 mm | 10.0 mm | -5.0 mm | 2.0 mm | 4.8 mm | -11.0 mm | |
| LK1836L2 | 20.0 mm | |||||||
| LK1684L1 | -12.69 mm | 12.0 mm | 10.0 mm | -6.6 mm | 2.0 mm | 3.8 mm | -14.0 mm | |
| LK1816L1 | -13.70 mm | 15.0 mm | 13.0 mm | -7.1 mm | 2.0 mm | 5.3 mm | -15.0 mm | |
| LK1753L1 | -15.00 mm | 12.0 mm | 10.0 mm | -7.8 mm | 2.0 mm | 3.4 mm | -16.3 mm | |
| LK1037L1 | -19.00 mm | 21.0 mm | 19.0 mm | -9.8 mm | 2.0 mm | 8.8 mm | -20.3 mm | |
| LK1085L1 | -20.01 mm | 17.0 mm | 15.0 mm | -10.3 mm | 2.0 mm | 4.7 mm | -21.3 mm | |
| LK1085L2 | 30.0 mm | |||||||
| LK1006L1 | -22.19 mm | 15.0 mm | 12.5 mm | -11.5 mm | 2.0 mm | 3.5 mm | -23.5 mm | |
| LK1426L1 | -24.88 mm | 12.0 mm | 10.0 mm | -12.9 mm | 2.0 mm | 2.8 mm | -26.2 mm | |
| LK1900L1 | -25.39 mm | 18.0 mm | 16.0 mm | -13.1 mm | 2.0 mm | 4.4 mm | -26.7 mm |
| Item # | Focal Lengtha |
Length | Height | Radius | Center Thickness |
Edge Thickness |
Back Focal Length |
Reference Drawing |
|---|---|---|---|---|---|---|---|---|
| LK1982L1 | -29.99 mm | 22.0 mm | 20.0 mm | -15.5 mm | 2.0 mm | 5.3 mm | -31.3 mm | |
| LK1982L2 | 40.0 mm | |||||||
| LK1283L1 | -40.00 mm | 12.0 mm | 10.0 mm | -20.7 mm | 2.0 mm | 2.5 mm | -41.3 mm | |
| LK1662L1 | -50.00 mm | 22.0 mm | 20.0 mm | -25.8 mm | 2.0 mm | 3.8 mm | -51.3 mm | |
| LK1336L1 | -50.00 mm | 32.0 mm | 30.0 mm | -25.8 mm | 2.0 mm | 6.5 mm | -51.3 mm | |
| LK1792L1 | -50.99 mm | 53.0 mm | 50.8 mm | -26.4 mm | 2.0 mm | 19.9 mm | -52.3 mm | |
| LK1913L1 | -69.99 mm | 32.0 mm | 30.0 mm | -36.2 mm | 2.0 mm | 5.2 mm | -71.3 mm | |
| LK1431L1 | -75.00 mm | 53.0 mm | 50.8 mm | -38.8 mm | 2.0 mm | 11.1 mm | -76.3 mm | |
| LK1526L1 | -79.99 mm | 22.0 mm | 20.0 mm | -41.3 mm | 3.0 mm | 4.1 mm | -82.0 mm |
| Item # | Focal Lengtha |
Length | Height | Radius | Center Thickness |
Edge Thickness |
Back Focal Length |
Reference Drawing |
|---|---|---|---|---|---|---|---|---|
| LK1743L1 | -100.00 mm | 32.0 mm | 30.0 mm | -51.7 mm | 3.0 mm | 5.1 mm | -102.0 mm | |
| LK1419L1 | -150.00 mm | 32.0 mm | 30.0 mm | -77.5 mm | 3.0 mm | 4.4 mm | -152.0 mm | |
| LK1069L1 | -200.00 mm | 32.0 mm | 30.0 mm | -103.4 mm | 3.0 mm | 4.0 mm | -202.0 mm | |
| LK1030L1 | -250.00 mm | 32.0 mm | 30.0 mm | -129.2 mm | 3.0 mm | 3.8 mm | -252.0 mm | |
| LK1487L1 | -400.00 mm | 32.0 mm | 30.0 mm | -206.7 mm | 3.0 mm | 3.5 mm | -402.0 mm | |
| LK1002L1 | -1000.00 mm | 32.0 mm | 30.0 mm | -516.8 mm | 3.0 mm | 3.2 mm | -1002.0 mm |
Plano-Concave, N-BK7, Uncoated