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Bi-concave lens

Product Details

Double-Concave Lenses are used in beam expansion, image reduction, or light projection applications. These lenses are also ideal for expanding the focal length of an optical system. Double-Concave Lenses, which have two concave surfaces, are Optical Lenses with negative focal lengths.




We can manufacture lenses in any optical material required. Please contact us with your specific requirements



Diameter Tolerance

±0.02 mm

Center Thickness Tolerance

±0.02 mm

Focal Length Tolerance

±2%

Surface Quality

10/20 or better

Material

BK7, UVFused silica, Ge,Si,CaF2,  ZnSe,etc

Clear Aperture

>90%

Centering

<1 arc min

Coating

Custom

Bevel

Protective bevel as needed

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  • +86-199 0981 7122
  • +86-199 0981 7122
  • yibeiteoptics@gmail.com
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