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Plano-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
  • These lenses are also available with a -A, -B, or -C antireflection coating.
  • Click Link for Detailed Specifications on the Substrate
  • Uncoated Wavelength Range: 350 nm - 2.0 µm
  • Much like surface flatness for flat optics, surface power is a measure of the deviation between the surface of the curved optic and a calibrated reference gauge, typically for a 633 nm source, unless otherwise stated. This specification is also commonly referred to as surface fit.

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.

Optic Cleaning Tutorial
Optical Coatings and Substrates
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
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 plot shown below indicates the performance of the standard coatings in this family as a function of wavelength.

N-BK7 Transmittance
Click to Enlarge
Click Here for Raw Data

Thorlabs' Standard Broadband Antireflection Coatings


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.

Plano-Concave Cylindrical Lenses, N-BK7, Uncoated (f=-3.91 to -25.39 mm)

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 Plano-Concave Cylindrical Lens Drawing
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
  • All focal lengths are specified at the design wavelength (587.6 nm). Since the index of refraction for N-BK7 is inversely proportional to the wavelength, the focal length of each lens becomes longer (more negative) with increasing wavelength.
Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Universal Price Available
LK1395L1 Support Documentation
LK1395L1f=-3.91 mm, H=4.0 mm, L=6 mm, N-BK7 Plano-Concave Cylindrical Lens, Uncoated
$48.60
Today
LK1597L2 Support Documentation
LK1597L2f=-4.01 mm, H=4.0 mm, L=8 mm, N-BK7 Plano-Concave Cylindrical Lens, Uncoated
$55.68
Today
LK1523L1 Support Documentation
LK1523L1f=-5.79 mm, H=4.0 mm, L=6 mm, N-BK7 Plano-Concave Cylindrical Lens, Uncoated
$48.60
Today
LK1087L1 Support Documentation
LK1087L1f=-6.35 mm, H=6.0 mm, L=8 mm, N-BK7 Plano-Concave Cylindrical Lens, Uncoated
$54.90
Today
LK1087L2 Support Documentation
LK1087L2f=-6.35 mm, H=6.0 mm, L=12 mm, N-BK7 Plano-Concave Cylindrical Lens, Uncoated
$64.88
Today
LK1363L2 Support Documentation
LK1363L2f=-7.70 mm, H=7.0 mm, L=14 mm, N-BK7 Plano-Concave Cylindrical Lens, Uncoated
$64.88
Today
LK1836L1 Support Documentation
LK1836L1f=-9.69 mm, H=10 mm, L=12 mm, N-BK7 Plano-Concave Cylindrical Lens, Uncoated
$67.24
Today
LK1836L2 Support Documentation
LK1836L2f=-9.69 mm, H=10 mm, L=20 mm, N-BK7 Plano-Concave Cylindrical Lens, Uncoated
$78.54
Today
LK1684L1 Support Documentation
LK1684L1f=-12.69 mm, H=10 mm, L=12 mm, N-BK7 Plano-Concave Cylindrical Lens, Uncoated
$54.37
Today
LK1816L1 Support Documentation
LK1816L1f=-13.70 mm, H=13 mm, L=15 mm, N-BK7 Plano-Concave Cylindrical Lens, Uncoated
$63.83
Today
LK1753L1 Support Documentation
LK1753L1f=-15.00 mm, H=10 mm, L=12 mm, N-BK7 Plano-Concave Cylindrical Lens. Uncoated
$55.68
Today
LK1037L1 Support Documentation
LK1037L1f=-19.00 mm, H=19 mm, L=21 mm, N-BK7 Plano-Concave Cylindrical Lens, Uncoated
$81.16
Today
LK1085L1 Support Documentation
LK1085L1f=-20.01 mm, H=15 mm, L=17 mm, N-BK7 Plano-Concave Cylindrical Lens, Uncoated
$69.61
Today
LK1085L2 Support Documentation
LK1085L2f=-20.01 mm, H=15 mm, L=30 mm, N-BK7 Plano-Concave Cylindrical Lens, Uncoated
$84.32
Today
LK1006L1 Support Documentation
LK1006L1f=-22.19 mm, H=12.5 mm, L=15 mm, N-BK7 Plano-Concave Cylindrical Lens, Uncoated
$62.51
Today
LK1426L1 Support Documentation
LK1426L1f=-24.88 mm, H=10 mm, L=12 mm, N-BK7 Plano-Concave Cylindrical Lens, Uncoated
$55.68
Today
LK1900L1 Support Documentation
LK1900L1f=-25.39 mm, H=16 mm, L=18 mm, N-BK7 Plano-Concave Cylindrical Lens, Uncoated
$71.71
Today

Plano-Concave Cylindrical Lenses, N-BK7, Uncoated (f=-29.99 to -79.99 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 Plano-Concave Cylindrical Lens Drawing
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
  • All focal lengths are specified at the design wavelength (587.6 nm). Since the index of refraction for N-BK7 is inversely proportional to the wavelength, the focal length of each lens becomes longer (more negative) with increasing wavelength.
Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Universal Price Available
LK1982L1 Support Documentation
LK1982L1f=-29.99 mm, H=20 mm, L=22 mm, N-BK7 Plano-Concave Cylindrical Lens, Uncoated
$83.52
Today
LK1982L2 Support Documentation
LK1982L2f=-29.99 mm, H=20 mm, L=40 mm, N-BK7 Plano-Concave Cylindrical Lens, Uncoated
$103.75
Today
LK1283L1 Support Documentation
LK1283L1f=-40.00 mm, H=10 mm, L=12 mm, N-BK7 Plano-Concave Cylindrical Lens, Uncoated
$55.68
Today
LK1662L1 Support Documentation
LK1662L1f=-50.00 mm, H=20 mm, L=22 mm, N-BK7 Plano-Concave Cylindrical Lens, Uncoated
$83.52
Today
LK1336L1 Support Documentation
LK1336L1f=-50.00 mm, H=30 mm, L=32 mm, N-BK7 Plano-Concave Cylindrical Lens, Uncoated
$114.52
Today
LK1792L1 Support Documentation
LK1792L1f=-50.99 mm, H=50.8 mm, L=53 mm, N-BK7 Plano-Concave Cylindrical Lens, Uncoated
$174.40
Today
LK1913L1 Support Documentation
LK1913L1f=-69.99 mm, H=30 mm, L=32 mm, N-BK7 Plano-Concave Cylindrical Lens, Uncoated
$109.26
Today
LK1431L1 Support Documentation
LK1431L1f=-75.00 mm, H=50.8 mm, L=53 mm, N-BK7 Plano-Concave Cylindrical Lens, Uncoated
$174.40
Today
LK1526L1 Support Documentation
LK1526L1f=-79.99 mm, H=20 mm, L=22 mm, N-BK7 Plano-Concave Cylindrical Lens, Uncoated
$83.52
Today

Plano-Concave Cylindrical Lenses, N-BK7, Uncoated (f=-100.00 to -1000.00 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 Plano-Concave Cylindrical Lens Drawing
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
  • Since the index of refraction for N-BK7 is inversely proportional to the wavelength, the focal length of each lens becomes longer (more negative) with increasing wavelength.
Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Universal Price Available
LK1743L1 Support Documentation
LK1743L1f=-100.00 mm, H=30 mm, L=32 mm, N-BK7 Plano-Concave Cylindrical Lens, Uncoated
$114.52
Today
LK1419L1 Support Documentation
LK1419L1f=-150.00 mm, H=30 mm, L=32 mm, N-BK7 Plano-Concave Cylindrical Lens, Uncoated
$114.52
Today
LK1069L1 Support Documentation
LK1069L1f=-200.00 mm, H=30 mm, L=32 mm, N-BK7 Plano-Concave Cylindrical Lens, Uncoated
$114.52
Today
LK1030L1 Support Documentation
LK1030L1f=-250.00 mm, H=30 mm, L=32 mm, N-BK7 Plano-Concave Cylindrical Lens, Uncoated
$114.52
Today
LK1487L1 Support Documentation
LK1487L1f=-400.00 mm, H=30 mm, L=32 mm, N-BK7 Plano-Concave Cylindrical Lens, Uncoated
$114.52
Today
LK1002L1 Support Documentation
LK1002L1f=-1000.00 mm, H=30 mm, L=32 mm, N-BK7 Plano-Concave Cylindrical Lens, Uncoated
$114.52
Today
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