Gradient index aspherical lens
US5986818A · kind A · utility
12Cited by
4References
26Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 15, 1995 |
| Grant date | Nov 16, 1999 |
| Priority date | — |
| Expiry date | Dec 15, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B3/0087
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A gradient index lens has a base lens and a resin layer. The resin layer is formed on a surface of the base lens. The resin layer has an aspherical surface. The base lens has a gradient index.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.