Refractive index distribution type light transmitting device
US6500910B1 · kind B1 · utility
1Cited by
4References
17Claims
0Family size
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Key dates
| Filing date | Jul 21, 2000 |
| Grant date | Dec 31, 2002 |
| Priority date | — |
| Expiry date | Jul 21, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/02033
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A refractive index distribution type light transmitting device comprising a non-crystalline polymer (a) and a metal chelate compound (b) having a difference in refractive index of at least 0.001 as compared with the non-crystalline polymer (a) and having a molecular weight of at least 400, wherein the metal chelate compound (b) is distributed in the non-crystalline polymer (a) with a concentration gradient in a specific direction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.