Biconcave lens

Bi concave lenses have equal radius of curvature on both surfaces. The lenses are often used to expand light beams or to increase focal lengths in optical systems and devices, and biconcave lenses are also used in combination with other lenses. Among the many devices using bi concave lenses are laser beam expanders, optical character readers, viewers and projection systems. We produce bi concave lenses with different diameters and dimensions. For custom made biconcave lens, please send us drawings or specifications.

Custom Made capabilities:

Material N-BK7, UV fused silica, JGS1,N-SF11, Silicon, Germanium, and optical glasses
Diameter available 1.5mm to 700mm
Tolerance +/-0.03mm
Thickness tolerance +/-0.03mm
Surface quality 20/10 or better
Surface accuracy Lambda/4 or better
Centering 1 arc min
Chamfer protective or do as per requested
Coating anti reflective coating for visible, UV, infrared wavelengths. Reflective mirror coating for the concave surfaces.

Minimum Order: 5 pieces

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