Double Concave Lens

Double-concave lenses are normally used in combination with other lenses. Typical applications include laser beam expanders, optical character readers, viewers, and projection systems. Specificati..
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Double Concave Lens

Double-concave lenses are normally used in combination with other lenses. Typical applications include laser beam expanders, optical character readers, viewers, and projection systems.

 

Specifications
Material: .............................BK7, Silica, CaF2, Silicon, etc.
Diameter Tolerance: .....................................+0.0, -0.1 mm
tc tolerance: .......................................................±0.1mm
Clear Aperture: ........................................................>85%
Surface Quality: .......................................................40-20
Flatness: .....................................................N=2, △N=0.5
Centration: ....................................................±3 arc mins
Size (φ): ............................................3 to 200mm or larger

Part No.
F(mm)
Dia(mm)
Rad1=Rad2(mm)
Tc(mm)
Te(mm)
fb(mm)
DCCL 101
-10.0
10.0
10.7
2.0
4.5
-10.6
DCCL 102
-20.0
12.7
21.07
2.0
4.0
-20.6
DCCL 103
-50.0
12.7
52.17
2.0
2.8
-50.7
DCCL 104
-100.0
25.4
104.0
2.0
3.6
-100.7
Note: Other sizes and specifications are available upon request.

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