Coupling with strong lens and weak lens on flexure
US6816323B2 · kind B2 · utility
10Cited by
7References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 3, 2002 |
| Grant date | Nov 9, 2004 |
| Priority date | — |
| Expiry date | Oct 3, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/4237
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Modern optoelectronic components have very tight coupling tolerances. Small misalignments of a strong lens that occur during the alignment and bonding process seriously degrade optical coupling. A weak lens is actively mounted using a flexure to correct misalignments of the strong lens. Since the weak lens does not exert as much steering force on a beam for a similar movement as the strong lens, misalignments that may occur during weak lens positioning and bonding do not appreciably degrade coupling.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.