A non spherical cylindrical lens is a type of non spherical lens whose surface is cylindrical in shape. The optical performance of non spherical cylindrical lenses is superior to spherical lenses, which can improve image distortion and clarity.
Non spherical cylindrical lenses are commonly used in optical systems such as camera lenses, optical instruments, and medical imaging. Its manufacturing technology is relatively complex, usually using techniques such as laser cutting, grinding, or polishing.
The optical performance of non spherical cylindrical lenses is related to the material. Common materials include glass, metal, plastic, etc. Glass non spherical cylindrical lenses have the advantages of superior optical performance, good thermal stability, and strong corrosion resistance.
| Outer diameter | 4.50 |
|---|---|
| material quality | D-ZLAF52LA |
| Focal length tolerance | ±1% |
| Profile Tolerance | +0.0/-0.1mm |
| Tolerance | ±0.1mm |
| Facial shape | λ/4@632.8nm |
| finish | 60/40 |
| eccentric | ＜3arc min |
| Effective aperture | ＞90% |
| Chamfer | ＜0.2×45° |
| effective focal length | 2.75 |
| work distance | 1.50 |
| Center Thickness | 2.24 |
| Numerical Aperture | 0.64 |
| design wavelength | 830 |
| coating film | A:400-700 |
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