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Details |
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Plano concave lenses
Plano-Concave Lens have one flat and one inward curved surface. PV lenses have a negative focal length and are used for image reduction or to spread light.
Application: 
Optical Display System
Projection Optics System
Imaging Optics System
Laser Measurements System
Specification:
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Material |
BK7 or Fused Silica |
|
Design Wavelength |
546.1 nm |
|
Design Index: |
|
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BK7 |
1.5183 ± 0.0005 |
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Fused Silica |
1.46008±0.00005 |
|
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 Irregularity |
λ/4@632.8 nm |
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Surface Quality |
60-40 scratch and dig |
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Protective Bevel |
0.25 mm x 45° |
BK7 Plano-Concave Lens Standard Products:
|
Part No. |
f (mm) |
Ф(mm) |
R1 (mm) |
t c(mm) |
t e(mm) |
f b(mm) |
|
DIT201 |
-10.0 |
6.0 |
5.18 |
2.0 |
2.9 |
-11.3 |
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DIT202 |
-20.0 |
10.0 |
10.37 |
2.0 |
3.2 |
-21.3 |
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DIT203 |
-50.0 |
12.7 |
25.92 |
2.0 |
2.5 |
-51.3 |
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DIT204 |
-100.0 |
25.4 |
51.83 |
2.0 |
3.6 |
-101.3 |
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DIT205 |
-200.0 |
25.4 |
103.66 |
2.0 |
2.7 |
-201.3 |
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DIT206 |
-500.0 |
25.4 |
259.15 |
2.0 |
2.3 |
-501.3 |
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DIT207 |
-1000.0 |
25.4 |
518.3 |
2.0 |
2.2 |
-1001.3 |
Note: Other material, size and coating are available upon request.
Fused Silica Plano-Concave Lens Standard Products:
|
Part No. |
f (mm) |
Ф(mm) |
R1 (mm) |
t c(mm) |
t e(mm) |
f b(mm) |
|
DIT301 |
-10.0 |
6.0 |
5.18 |
2.0 |
2.9 |
-11.3 |
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DIT302 |
-20.0 |
10.0 |
10.37 |
2.0 |
3.2 |
-21.3 |
|
DIT303 |
-50.0 |
12.7 |
25.92 |
2.0 |
2.5 |
-51.3 |
|
DIT304 |
-100.0 |
25.4 |
51.83 |
2.0 |
3.6 |
-101.3 |
Note: Other material, size and coating are available upon request.
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