A Double Concave Cylindrical Lens is an optical component designed to diverge light in a single axis. It has two inward-curving cylindrical surfaces, making it concave along one dimension while remaining flat along the perpendicular axis. These lenses are widely used in applications requiring beam shaping, light expansion, or divergence correction in one plane.
A double concave cylindrical lens consists of two concave surfaces. It is usually used in optical display systems, imaging systems, optical instrument, laser systems, etc.
Laser Beam Shaping: Used to expand or shape laser beams in applications like scanning systems or optical data storage.
Image Processing: Helps in correcting distortions in imaging systems.
Optical Instruments: Useful in designing devices like projectors, spectrometers, and optical sensors.
| Materials | Optical glass, quartz, infrared materials (calcium fluoride, zinc selenide, silicon) |
| Diameter Range | φ5-280mm |
| Contour tolerance | 0/-0.1mm |
| Thickness Tolerance | ±0.05mm |
| Surface Quality | 20-10 |
| Surface Flatness | N≤1, △N≤0.5 |
| Centering Error | 1 arc min |
| Chamfer | ≤0.1 |
| Clear Aperture | > 90% |
| Coating | According to customer requirements |
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