Optical collimator and method for making same
US6714703B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 11, 2002 |
| Grant date | Mar 30, 2004 |
| Priority date | — |
| Expiry date | Mar 11, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/327
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An optical collimator comprises an optical fiber (210), a ferrule (220), a GRIN lens (230), a metal sleeve (240), and an outer metal tube (250). The optical fiber has an exposed end which is inserted into the ferrule and glued thereinto. The GRIN lens is glued into the sleeve. Opposite ends (232, 234) of the GRIN lens protrude from opposite ends of the sleeve. The outer tube includes first and second receiving portions (252, 254). The ferrule is glued into the first receiving portion, and the sleeve is secured in the second receiving portion. A plurality of soldering holes (256) is defined in a periphery of the outer tube. Soldering is applied to the sleeve through the holes to firmly connect the outer tube and the sleeve together. A position of the GRIN lens relative to the optical fiber can be easily readjusted by re-soldering the sleeve.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.