Lens barrel
US7259923B2 · kind B2 · utility
17Cited by
43References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 9, 2004 |
| Grant date | Aug 21, 2007 |
| Priority date | — |
| Expiry date | Sep 1, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B7/02
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A lens barrel, including, a moving frame (2) to hold a lens (8), a direct-advance ring (4) provided on an outer periphery of the moving frame and movable relative to the moving frame in an optical direction, a resilient member (6) provided between the moving frame and the direct-advance ring, and a control part (10) provided on the moving frame to control an amount of movement of the direct-advance ring in the optical direction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.