Spherical Lenses
Feature and Advantage:
- Varios materials
- Various shapes
- Mature processing techniques, wide application
- Suitable for mass production
- High damage threshold is available
PRODUCT
Detail
An optical spherical lens is an optical component composed of two spherical surfaces (or one spherical surface and one plane). Its surface is a part of a sphere. It achieves functions such as focusing, diverging or imaging through the refraction of light.
Typical types: plano-convex lens, plano-concave lens, biconvex lens, biconcave lens, concave-convex lens and Meniscus lens.
Common materials: Optical glass (CDGM, Schott, Ohara, Hoya), fused quartz, etc. Crystal materials: sapphire, silicon, germanium, zinc selenide, etc.
Sizes can be customized as needed. We can produce the lenses according to customers’ drawings or specifications.
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Specifications
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Diameter tolerance (mm)
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+0.0/-0.2 (General), +0.0/-0.02 (High precision)
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Focal length(mm)
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±2%
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Centration
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<3 arc min or better
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CA
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>80% (Small sizes), >95% (Larger sizes)
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Power
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<1.5λ(General), <λ/2 (High precision)
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IRR ( @632.8nm)
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<λ/4 (General), <λ/10 (High precision)
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Surface Quality
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60/40 (General), 10/5 (High precision)
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Coating
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Uncoated, AR, HR, PR, etc.
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