Stray light absorption
US6298178A · kind A · utility
31Cited by
1References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 13, 1998 |
| Grant date | Oct 2, 2001 |
| Priority date | — |
| Expiry date | May 13, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B2006/12126
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An integrated optical circuit formed on an optically conductive substrate having light absorbing means comprising one or more doped areas (1) of the substrate where the doping concentration is greater than that of areas of the substrate forming the optical circuit (2) to absorb stray light in the substrate which is not guided by components of the optical circuit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.