Double concave lens

Double concave lens
Double concave lens
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Product Code : 15
Product Description

Double-Concave Lens Is Normally Used In Combination With Other Lenses. Typical Applications Include Laser Beam Expanders, Optical Character Readers, Viewers, And Projection Systems.


Material: N-BK7, Fused silica
Diameter: +0/-0.2mm
Clear aperture: > 90% of diameter
Thickness: +/-0.1mm
Radius: +/-0.1%
Centration: < 3 arc minutes
Surface quality: 60-40 scratch and dig
Power: 2 fringes
Irregularity: 0.5 fringe
Coating: with or without AR coating
Bevel: Protective bevel  

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