Light receiver unit having a light receiving element and a packaging cover
US6369380B1 · kind B1 · utility
6Cited by
6References
13Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 29, 1999 |
| Grant date | Apr 9, 2002 |
| Priority date | — |
| Expiry date | Jul 29, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B7/099
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Disclosed is a light receiver unit having a packaging cover and a light receiving element positioned in an inner space of the packaging cover wherein a resin is injected into the inner space to be solidified. The light receiver unit includes: a window hole formed on the packaging cover, a filter fixed to the packaging cover to cover the window hole, and a transparent plane-parallel plate fixed to the packaging cover to cover the filter from the inside of the packaging cover, the transparent plane-parallel plate being harder that the filter; whereby the filter is protected from any pressure caused by the injected resin.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.