Home / Custom / Optical Components / Cylindrical Mirror / Plano Convex Cylindrical Lens 
A plano-convex cylindrical lens is used to condense light in one axis. A positive plano cylindrical lens is able to create a line image from a point of light, to change the aspect ratio of an image or to focus collimated input light to a line. Plano- convex cylindrical lenses are typically used for illumination of slit and line detector arrays, laser projection, laser line focussing and anamorphic beam shaping.
Optical glass such as K9, fused silica, sapphire, MgF2, silicon (Si), ZnSe, ZnS, etc. These materials possess high transmittance, low absorption, low scattering, uniform refractive index, and specific dispersion characteristics.
Precisely hemispherical. The machining precision of the center and radius of curvature of the sphere is extremely high.
The surface is precision polished to an optical grade of 10-5 to ensure image quality and reduce scattering and aberrations.
An AR coating is typically applied to the concave surface to maximize the transmittance of specific wavelengths of light (e.g. visible light) and reduce reflection loss.
| Commercial | High precision | |
|---|---|---|
| Material | Optical glasses, fused silica, silica, etc. | |
| Diameter | 0.5mm ~ 150mm | |
| Diameter tolerance | ±0.1mm | ±0.02 |
| Focal length | -50mm ~ 2000mm | |
| Focal length tolerance | ±2% (<10mm) | |
| ±0.5% <10mm – 1000mm) | ||
| ±1% (>1000%) | ||
| Centraticom | <3 arc min | <10 arc sec |
| Clear aperture | >85% ~92% of diameter | |
| Surface quality ( Scratch / Dig) | MIL 60/40 | MIL 10/5 |
| Surface accuracy | λ/4@632.8nm | λ/10632.8nm |
| Bevel | 0.05mm~0.2mm x 45° | |
| Coating | Up on customer’s requirement. | |
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