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Plano-concave glass lenses are manufactured with one concave surface and one
plane surface. These lenses have negative focal lengths.
- These lenses diverge collimated incident light.
- They form virtual images which are seen through the lens.
- They are often used to expand light or to increase focal lengths in
existing systems.
- We also offer precision grade plano-concave lens
with tighter manufacturing tolerances.
General Specifications:
| Parameter |
Value |
| Default unit |
mm |
| Material |
BK7 |
| Diameter tolerance |
+0,-0.1mm (+0, -0.15mm for diameter>75mm) |
| Focal length tolerance |
+/-2% |
| Center thickness tolerance |
+/-0.2mm |
| Centration |
3 arc min |
| Surface quality |
60-40 |
| Flange width |
0.2-0.4mm |
| PN: |
PVS042
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| Description: |
Plano-concave lens standard grade BK7 D= 25 EFL= -100
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| Material: |
BK7
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| EFL: |
-100
|
| Diameter: |
25
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| Index: |
1.51872
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| BFL: |
-101.32
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| Tc: |
2
|
| Te: |
3.53
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| Radius1: |
-51.872
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| Radius2: |
Infinity
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| Volume Price: |
Request Volume Quote |
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