Retractable zoom lens
US7791820B2 · kind B2 · utility
0Cited by
2References
20Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Apr 22, 2009 |
| Grant date | Sep 7, 2010 |
| Priority date | — |
| Expiry date | Apr 22, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B7/102
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A retractable zoom lens includes a holder, at least one movable barrel assembly received in the holder, a holding frame received in the movable barrel assembly, and a slide barrel engaged with the holding frame. The holding frame can move along the optical axis along with the movement of the movable barrel assembly. The movable barrel assembly is movable along an optical axis of the retractable zoom lens, and the slide barrel is slidable along a direction substantially perpendicular to the optical axis during an object image captured by an image pickup device of the retractable zoom lens.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.