GRIN lens and method of manufacturing
US5689374A · kind A · utility
28Cited by
10References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 8, 1995 |
| Grant date | Nov 18, 1997 |
| Priority date | — |
| Expiry date | Mar 8, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B3/0087
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An optical element having an optical axis, and comprising a plurality of definable adjacent zones of optical material, each zone having a definable refractive index different from the refractive index of an adjacent zone and an Abbe number, the zones of optical materials being arranged parallel to each other to define a profile of refractive indices which is symmetric about a plane of symmetry along the optical axis of the element and parallel to the zones. In one embodiment the optical element is a spectrally invariant lens.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.