Plano-Concave Lens
Product Details
Plano-Concave Lenses, which have one concave surface, are Optical Lenses with negative focal lengths. should be oriented with the plano, or flat, surface towards the desired focal plane. are ideal for beam expansion, light projection, or for expanding an optical system’s focal length.
Opticreateoffers AR coated and Uncoated lenses,range from the Ultraviolet (UV) to the Infrared (IR), Germanium (Ge), Silicon (Si), or Zinc Selenide (ZnSe) substrates are ideal for Infrared (IR) applications and Fused Silica are used for UV applications.
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Material |
BK7, Fused silica, Si,Ge,CaF2,ZnSe ect. |
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Design wavelength |
440～660nm |
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Diameter tolerance |
+0.0/-0.05mm(D50mm) |
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Diameter |
D2-D300mm |
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Focal length tolerance |
±2% |
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Centration |
≤0.01mm((General)<0.005mm(High Precision) |
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Power |
<1.5λ@633nm（General),<λ/4@633nm(High Precision) |
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Irregularity |
λ/4 @ Precision) |
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Surface Quality |
40/20（General)10/5(High Precision) |
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Bevel |
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Coating |
AR coating, HR coating（Could be customized） |
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