meniscus lens
Meniscus lenses are divided into positive meniscus lenses and negative meniscus lenses. Meniscus lenses are used to reduce spherical aberration to a greater extent, obtaining a smaller focal spot and fewer aberrations than plano-convex lenses, thereby improving imaging quality. When used in combination with another lens, a positive meniscus lens can shorten the focal length, thereby increasing the numerical aperture (NA) of the system without introducing significant spherical aberration.
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Overview
Specifications
| Parameter | Value |
|---|---|
| Front Radius of Curvature R1 | 18.59mm 20.422mm |
| Back Radius of Curvature R2 | -49.886mm -43.022mm |
| Surface Finish | 40-20 |
| Transmitted Wavefront Error | ＜λ/4@633nm |
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Supplier Information
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