Lenses


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Product Catalog 2016

InStockOptics

Laser optics direct from stock. All products are inspected at metrology laboratory, certified and delivered worldwide direct from European Union.

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Double-Concave Lenses

Double-Concave Lenses
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Material BK7, FS, UVFS, CaF2, ZnSe, Si, Ge
Diameter tolerance +0.0/-0.1 mm
Thickness tolerance ±0.1 mm
Clear aperture >90%
Focal Length Tolerance ±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
Price list
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Attention! You can customise this product to your needs.
The biconcave lenses are used in optical systems in combination with other lenses. These lenses also work as beam expanders, optical character readers, viewers and projection systems. Under customer request anti-reflection or other types of coatings can applied.
varna Lower spherical aberrations than for Plano-Concave lenses
varna Diverges incident light
varna Ideal for Experimenting and Prototyping Applications

Properties (Diameter D, Focal length L)

D, mmD, InchesL Minimal, mmL Maximal, mm
12,7 0.5 -12 -10.000
25,4 1 -25 -10.000
38,1 1.5 -40 -10.000
50,8 2 -50 -10.000
76,23-75-10.000

Order your item

1
Items per page page
Diameter, mm Edge Thickness, mm Focal length, mm Material ROC1, mm ROC2, mm Delivery Product ID Price Action
12.7 4.5 -20 BK7 -21.11 21.11 4-6 weeks 1-BCV-1-C127 31 $
12.7 5.0 -15 BK7 -15.85 15.85 4-6 weeks 1-BCV-1-B127 33 $
25.4 7.0 -50 BK7 -52.16 52.16 4-6 weeks 1-BCV-1-D254 33 $
12.7 5.0 -12 BK7 -12.59 12.59 4-6 weeks 1-BCV-1-A127 35 $
25.4 7.0 -35 BK7 -36.71 36.71 4-6 weeks 1-BCV-1-C254 35 $
25.4 8.0 -30 BK7 -31.41 31.41 4-6 weeks 1-BCV-1-B254 37 $
25.4 8.0 -25 BK7 -26.11 26.11 4-6 weeks 1-BCV-1-A254 42 $
12.7 5.0 -20 UVFS -18.75 18.75 4-6 weeks 1-BCV-2-B127 54 $
12.7 4.5 -25 UVFS -23.32 23.32 4-6 weeks 1-BCV-2-C127 54 $
12.7 5.0 -15 UVFS -14.11 14.11 4-6 weeks 1-BCV-2-A127 57 $
25.4 8.0 -40 UVFS -37.12 37.12 4-6 weeks 1-BCV-2-B254 64 $
25.4 8.0 -30 UVFS -27.81 27.81 4-6 weeks 1-BCV-2-A254 66 $
25.4 7.0 -50 UVFS -46.43 46.43 From stock 1-BCV-2-C254 64 $

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You can customise this product to your needs. If you do not find suitable specifications for your application please contact us for custom solution.

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Choose from 12 Double-Concave Lenses