Equi-Concave
Glass Lenses |
Detailed products information
(Minimum Quantity Per Order: 50 pcs ) |
The equi-concave lens has a focal length,
diverges collimated incident light, and forms only virtual images
that are seen through the lens. It is often used to expand light
beams or to increase focal length in existing systems, and is
normally used in combination with other lenses |
|
Specifications |
Focal Length |
3% |
Diameter |
+0-0.2mm |
Center Thickness |
0.2mm |
Wedge Angle |
<5arcmin |
Surface quality |
40-20 |
|