Meniscus Lens are identified by having one convex surface and one concave surface. Within this, Meniscus lens are categorized as Positive or Negative. Positive Mensicus lens have a thicker center in relation to its edges. They can be used to shorten focal length while increasing the NA of an existing system, and can also minimize spherical aberrations. Negative Meniscus lens have thicker edges compared to its center. They can be used to increase the focal length while decreasing the NA of an existing system, and can also increase the divergence of a beam without introducing spherical aberrations. We are able to customize these to your application requirements. Please contact us for more details.
Precision Optical Components Produced To Your Specifications
| Standard Specifications | ||||
|---|---|---|---|---|
| Diameter | 3.00 - 5.00 | 5.01 - 25.40 | 25.41 - 40.00 | 40.01 - 75.00 |
| Surface Quality | 40-20 | 40-20 | 60-40 | 80-50 |
| Diameter Tolerance | +0/-0.05 | +0/-0.1 | +0/-0.1 | +0/-0.1 |
| Center Thickness Tolerance | +/-0.2 | +/-0.2 | +/-0.2 | +/-0.2 |
| Edge Thickness Tolerance | Reference | Reference | Reference | Reference |
| Centering Tolerance | 3-5arc mins | 3-5arc mins | 3-5arc mins | 3-5arc mins |
| Note | If your requirement is outside of our listed specifications, please inquire as our production facility can often quickly and affordably customize off-the-shelf components to a variety of sizes and shapes that will meet standard, precision, or high precision quality. | |||
