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Details |
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Cylindrical Lenses
Cylindrical lens is used to provide focusing power in one section only. For illumination or detection of light from line sources. Also used to anamorphic compression of beams and images. Especially widely used to anamorphic compression of LD (laser diode) output beam.
Application:
Laser Measurements System
Bar Code Scanning
Projection Optics System
Holography
Specification:
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Material |
BK7 or Fused Silica |
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Design Wavelength |
632.8 nm |
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Design Index: |
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BK7 |
n=1.5147±0.0005 |
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Fused Silica |
n=1.45702±0.00005 |
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Surface Figure |
x: λ/2; y: 2λ |
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Diameter Tolerance |
+0.00, -0.15 mm |
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Thickness Tolerance |
±0.2 mm |
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Paraxial Focal Length |
±2% |
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Centration |
<3 arc minutes |
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Clear Aperture |
>85% |
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Surface Quality |
60-40 scratch and dig |
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Protective Bevel |
0.25 mm x 45° |
BK7 Plano-Convex Cylindrical Lens Standard Products:
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Part No. |
X×Y (mm) |
f (mm) |
R1 (mm) |
t c(mm) |
t e(mm) |
f b(mm) |
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DIT01 |
10.0x10.0 |
12.7 |
6.54 |
4.3 |
2.0 |
9.8 |
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DIT02 |
20.0x10.0 |
12.7 |
6.54 |
4.3 |
2.0 |
9.8 |
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DIT03 |
10.0x10.0 |
20.0 |
10.29 |
3.3 |
2.0 |
17.8 |
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DIT04 |
20.0x10.0 |
20.0 |
10.29 |
3.3 |
2.0 |
17.8 |
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DIT05 |
10.0x10.0 |
25.0 |
12.87 |
3.0 |
2.0 |
23.0 |
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DIT06 |
20.0x10.0 |
25.0 |
12.87 |
3.0 |
2.0 |
23.0 |
Note: Other size, material and coatings are available upon request.
BK7 Plano-Concave Cylindrical Lens Standard Products:
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Part No. |
X×Y (mm) |
f (mm) |
R1 (mm) |
t c(mm) |
t e(mm) |
f b(mm) |
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DIT601 |
10.0x10.0 |
-12.7 |
6.54 |
4.3 |
2.0 |
-14 |
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DIT702 |
20.0x10.0 |
-12.7 |
6.54 |
4.3 |
2.0 |
-14 |
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DIT803 |
10.0x10.0 |
-25.0 |
12.87 |
3.0 |
2.0 |
-26.3 |
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DIT904 |
20.0x10.0 |
-25.0 |
12.87 |
3.0 |
2.0 |
-26.3 | Note: Other size, material and coatings are available upon request. |
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