Lens system and optoelectric alignment apparatus
US6519099B1 · kind B1 · utility
Inventors
Key dates
| Filing date | Sep 12, 2001 |
| Grant date | Feb 11, 2003 |
| Priority date | — |
| Expiry date | Sep 12, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/4206
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The optoelectric alignment apparatus and lens system includes a glass ball positioned to receive light from a light source along an optical axis. A second lens is positioned to receive light from the glass ball and to supply the received light to a light receiving structure. The glass ball provides most of the optical power of the lens system so that the second lens provides only minor optical correction. The lens system is mounted by means of a molded plastic body that extends axially along the optical axis with the second lens molded into the body. The body includes a light inlet end and a light outlet in a surface lateral to the optical axis and defines a glass ball receiving cavity adjacent the light inlet end fixedly gripping the glass ball.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.