Hermetic and near hermetic sealing of optical components
US7490999B2 · kind B2 · utility
0Cited by
5References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 11, 2004 |
| Grant date | Feb 17, 2009 |
| Priority date | — |
| Expiry date | Oct 11, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/4248
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Methods and structures for reducing the moisture penetration in an optical device such as an isolator, collimator, filters, circulators, and the like. Methods can include placing an optical cover over the opening(s) of the housing of the optical device. The optical cover can be bonded by epoxy or metallic seal. A moisture prevention coating can be placed over the seal line between the optical cover and the housing to further enhance moisture prevention.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.