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Double-Concave Lens Is Normally Used In Combination With Other Lenses. Typical Applications Include Laser Beam Expanders, Optical Character Readers, Viewers, And Projection Systems.
Capability
Material | BK7, FS, UVFS, CaF2, ZnSe, Si, Ge |
Diameter tolerance: | +0.0/-0.1 mm |
Thickness tolerance: | ±0.1 mm |
Focal Length Tolerence | ±3 % |
Design wavelength: | 632.8 nm |
Surface quality: | 40-20 S-D |
Surface figure: | <λ/4 @ 632.8 nm |
Centration error: | <3 arcmin |
Protective chamfers: | <0.25 mm x 45° |
Coatings: | Available on request |
Capability Is Subject To The Change Of Material Used And Dimension.
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