double concave optical glass lens
Product description:
double concave glass lens
|
Double concave lens is the most common form of Negative lens. Negative lens is most suited to producing diverging light or a virtual image, where the input light is converging.
Specifications:
Material: |
BK7, Fused Silica, SF10, CaF2, Sapphire .etc. |
| Paraxial Focal Length Tolerance: |
±2% |
| Dimension Tolerance: |
±0.2(General). ±0.05(High Precision) |
| Centration: |
<3 arc min |
| IRR: |
λ/4@633nm(General),λ/10@633nm(High Precision) |
| Clear Aperture: |
>80%(Small Size), >95%(Large Size) |
| Surface Figure |
<1.5λ@633nm(General),<λ/4@633nm(High Precision) |
| Surface Quality: |
60/40(General),10/5(High Precision) |
| Bevel: |
<0.25mm |
| Coating: |
Uncoated, AR,PR, HR, etc. |
|
Technology Index:
Production:
Package:
Delivery:
Audited Supplier 
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