Cylindrical Lens
A cylindrical lens is a lens which focuses light onto a line instead of a point, as a spherical lens would. The curved face or faces of a cylindrical lens are sections of a cylinder, and focus the image passing through it onto a line parallel to the intersection of the surface of the lens and a plane tangent to it. The lens compresses the image in the direction perpendicular to this line, and leaves it unaltered in the direction parallel to it.
Applications:
- Telecom Optical System
- Laser Optical System
- Instrument Optical System
Capability:
| PARAMETER | COMMERCIAL | HIGH PRECISION |
| Material | N-BK7,Fused Silica or upon request | |
| Clear Aperture | ≥85% | ≥95% |
| Dimension Tolerance | ±0.1mm | ±0.02mm |
| Paraxial Focal Length Tol. | ±2% | ±0.5% |
| Surface Irregularity | λ/4 @632.8nm | λ/8@632.8nm |
| Surface Quality(S/D) | 40-20 | 10-5 |
| Centration | ±3 arcmin | ±1 arcmin |
| AR Coating | AR＜0.2%@CWL
HR＞99.5%@CWL |
|
Other material ,sizes, tolerance and coatings are also available upon request.