Cylindrical Lens
A cylindrical lens is an optical element whose surface is cylindrical (or composed of a cylindrical surface and a planar surface). Its core feature is that it has different refractive capabilities in different directions. It is mainly used for one-dimensional (linear) focusing, divergence, or astigmatism correction of light. It utilizes the law of refraction of light and only causes refraction of light in the direction perpendicular to the cylindrical axis. In the direction parallel to the axis, the propagation direction of the light remains unchanged, thereby achieving one-dimensional focusing or defocusing effects. Its application scenarios cover vision correction, laser processing, optical instruments, etc., and is indispensable in scenarios that require handling asymmetric light beams or correcting astigmatism. Type: Plano convex cylindrical lens, Plano concave cylindrical lens, double convex cylindrical lens, double concave cylindrical lens, Meniscus cylindrical lens.
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Overview
Specifications
| Parameter | Value |
|---|---|
| Diameter tolerance [+/-0.2 (General), +/-0.05 (High precision)] | +/-0.2 (General), +/-0.05 (High precision) |
| Focal length | ±2% |
| Centration | <3 arc min or better |
| CA [>80% (Small sizes), >95% (Larger sizes)] | >80% (Small sizes), >95% (Larger sizes) |
| IRR at X direction [<λ/2(General), <λ/24(High precision)] | <λ/2(General), <λ/24(High precision) |
| IRR at Y direction [<2λ(General), <λ(High precision)] | <2λ(General), <λ(High precision) |
| Surface Quality [60/40 (General), 10/5 (High precision)] | 60/40 (General), 10/5 (High precision) |
| Coating | Uncoated, AR, HR, PR, etc. |
| Common materials | Optical glass (CDGM, Schott, Ohara, Hoya), Fused quartz, etc. |
Key Features
Datasheet
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Supplier Information
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