Lens moving mechanism for finely moving a portion of an objective lens by rotating a holding member
US5912774A · kind A · utility
12Cited by
10References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 25, 1996 |
| Grant date | Jun 15, 1999 |
| Priority date | — |
| Expiry date | Jul 25, 2016 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B7/08
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A lens moving mechanism for finely moving at least a lens portion of an objective lens in a direction of an optical axis of the objective lens. The lens moving mechanism includes a holding member holding the lens portion and a disc-like disc cam member provided with a cam surface, which lies in a peripheral portion of the disc-like disc cam member. The disc cam member is rotated to thereby move the holding member on a track conforming to the cam surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.