Optical elements
US3955882A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 19, 1972 |
| Grant date | May 11, 1976 |
| Priority date | — |
| Expiry date | Jul 19, 1992 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B27/147
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An optical element and a method of forming such an optical element are disclosed. The optical element comprises a base of optically transparent material, a layer or several layers of material having selected physical and optical properties, and a coating integrally formed to the substrate and having substantially the same optical properties as the substrate so that the said layer or layers is or are effectively embedded therein. The layer or layers may be discontinuous e.g. formed as stripes, or patterned and the optical properties may be reflective, transmissive, absorptive, spectrally selective, photo-sensitive, photo-emissive or any combination of these depending on the circumstances. If several layers are provided these may be all identical or one or more may be different, having different optical properties and/or different physical properties of size, shape and pattern.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.