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Optical glass biconcave lenses
$15.00
≥10 Piece/Pieces
| Brand Name : | Bena |
|---|---|
| Customized : | Customized |
Product description
With two concave surfaces, biconcave lenses have negative focal length, causing collimated incident light to diverge, and they are ideal for expanding the focal length of an optical system. Bena’s biconcave lenses are offered with various materials, including UV Fused silica, ZnSe, Silicon, Ge, CaF2, MgF2, N-SF10, N-BK7 etc. Bena is specialized in providing customized biconcave lenses with large diameter (up to 700mm) and high precision (RMS ≤ λ @ 632.8nm).
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Technical Specifications for Customized Biconcave Lenses |
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Customization |
Build-to-print |
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Material |
UV Fused silica, N-BK7, ZnSe, Silicon, Ge, CaF2, MgF2, N-SF10 |
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Diameter |
10~700mm |
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Diameter tolerance |
0/-0.01 |
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Surface Quality |
20/10 |
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Surface Accuracy |
RMS ≤ λ/100 @ 632.8nm |
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Coating |
As required |
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Edge |
Protective Bevel As required |
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Surface Roughness |
Ra ≤ 1nm |
Founded in 2014, Bena was co-founded by several experienced engineers who have more than 10 years of optical design, process, production and test. We provide customization service for high precision (rms = 1
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