A biconvex lens is composed of two convex spherical surfaces with a positive focal length, usually with objects and images on either side of the lens. Mainly used to gather light from point sources or to transfer images to other optical systems.
| Material |
CDGM
optical glass, CORNING, SCHOTT, HOYA, OHARA, and other specified materials |
|
Outer
diameter
|
φ4-φ80mm
|
|
Surface
Figure
|
≤1（0.5）
|
|
Machining
Tolerance
|
Center
thickness tolerance: ±0.05mm, outer diameter tolerance: ±0.05mm, sagittal
height tolerance: ±0.05mm
|
|
Eccentricity
|
1 arc minute |
|
Surface
Quality |
40/20 |
| Material |
CDGM
optical glass, CORNING, SCHOTT, HOYA, OHARA, and other specified materials |
|
Outer
diameter
|
φ4-φ80mm
|
|
Surface
Figure
|
≤1（0.5）
|
|
Machining
Tolerance
|
Center
thickness tolerance: ±0.05mm, outer diameter tolerance: ±0.05mm, sagittal
height tolerance: ±0.05mm
|
|
Eccentricity
|
1 arc minute |
|
Surface
Quality |
40/20 |
