專業Bi-concave spherical lenses廠商

Bi-concave spherical lenses feature two spherical concave surfaces with same radius of curvature, while their focal length is negative. The performance of these lenses is best when used for finite conjugate (0,2X - 5X ratio) applications, most often diverge converging light.

Main features

• Fabricated from high-quality UV grade fused silica, BK7 glasses
• Standard diameter is ⌀25,4 mm
• Focal length selection from -25 mm to -100 mm
• Antireflective coating, custom substrate material, dimensions and focal lengths available upon request

Application examples

• Beam expanders
• Relay imaging