Imaging device and digital camera using the imaging device
US7522346B2 · kind B2 · utility
1Cited by
4References
24Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 27, 2003 |
| Grant date | Apr 21, 2009 |
| Priority date | — |
| Expiry date | Dec 2, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B15/145513
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An imaging device has a zoom lens system having a plurality of lens units and forming an optical image of an object so as to continuously optically zoom by varying distances between the lens unit; and an image sensor converting the optical image formed by the zoom lens system to an electric signal. The zoom lens system has from an object side: a first lens unit being overall negative and including a reflecting surface that bends a luminous flux substantially 90 degrees; and a second lens unit disposed with a variable air distance from the first lens unit, and having a negative optical power.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.