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 |