Negative Meniscus Lenses
Negative meniscus lens series; select the required material.
Compare K9 GLA16 and UV fused silica GLA26 negative meniscus lenses. Begin with the material and required negative focal length, then review the two curved surfaces and installation dimensions for the selected model.
Choosing Negative Meniscus Lenses
- Check the sign and magnitude of focal length against the intended divergent optical power.
- Compare radii, thickness and aperture with the prescription and holder, especially for a replacement lens.
- Specify wavelength and the required surface orientation so material and coating can be reviewed in the actual beam path.
Use the optical-parameter guide to distinguish focal, aperture and surface specifications.