These lenses have negative focal lengths, diverge collimated incident light, and form only virtual images which are seen through the lenses. They are often used to expand light beams or increase focal lengths in existing systems.
1. lens types include plano-concave, plano-convex, biconvex, biconcave, meniscus, cemented, and cylindrical lenses. 2. They could be used on telescope, binoculars, collimator, optical transceiver, magnifier, alignment instrument, scanner, ...
1. COT developed many optical components in infra ray and ultra violate wavelength range including: Silica, Silicon, Germanium, Sapphire, CaF2, MgF2, ZnS, ZnSe, etc. 2. Though those materials often owned extremely high or low hardness ...
Condenser lenses concentrate light into a projected beam. Used in projectors, enlargers, spotlights, and photo cell systems, they are usually mounted in pairs so that their convex surfaces are nearly in contact.
A lens having two spherically curved faces, one convex and the other concave, so that it has the form of a shell. A positive meniscus lens is thicker in the middle than at the edges and serves as a converging lens; a negative meniscus lens ...
| Company Name : | Control Optics Taiwan Inc. |
|---|---|
| Contact Person : | Mr. Jack Yeh  |
| Address : | No.16, Lane 317, Youping Street, Kao-Jun |
| Country : |  Taiwan |
| Telephone : | 886-3-4961737 |
| Fax : | 886-3-4961757 |
