Zoom optical system and electronic imaging apparatus having the same
US7453650B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 10, 2008 |
| Grant date | Nov 18, 2008 |
| Priority date | — |
| Expiry date | Mar 10, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N25/61
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An electronic imaging apparatus includes a zoom optical system having, in order from the object side, a first lens unit with positive power, a second lens unit with negative power, and an aperture stop, in which the first lens unit is composed of a single positive power unit and the second lens unit has a single negative lens element located at the most object-side position, both surfaces of which are concave, and a positive lens component located at the most image-side position; an electronic image sensor located on the image side of the zoom optical system; and an image processing section electrically processing image data obtained by the electronic image sensor to change the form thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.