Sapphire lenses
Optical Sapphire Lenses are designed to focus or diverge light and for imaging or alignment in an optical system. Optical Lenses, which may consist of a single or multiple elements, have a variety of applications. Lens forms can be divided into simple lenses (which include plano-convex lens , plano-concave lens, double-convex lens, double-concave lens, cylinder lens, drum lens,spherical lens in different shapes), achromatic lenses compound lens and multiple types.When light passes through a lens ,it is refracted changing the direction of the output light by the lens profile or the lens substrate.
Specifications of Sapphire Lenses
| Material | Optical grade single crystal sapphire |
|---|---|
| Orientation | C-axis perpendicular to the faces |
| Diameter Tolerance | +/-0.1 mm |
| Thickness Tolerance | +/-0.05 mm |
| Centering Tolerance | < 1' (3 arc minutes maximum) |
| Surface Quality | 60-40 scratch-dig per MIL-O-13830A |
| Focal Length Tolerance | +/- 5% at .6328µm |
| Clear Aperture | >85% |
| Chamfer/Bevel | < 0.25mm*45° |
| Coating | No/AR coating or customized available |
Typical Applications of sapphire lenses
Various Configurations can be custom fabricated to customer requirements and specifications