Dual field-of-view optical imaging system with dual focus lens
US8294808B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 19, 2010 |
| Grant date | Oct 23, 2012 |
| Priority date | — |
| Expiry date | Oct 3, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B27/644
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A dual field-of-view optical imaging system is provided for obtaining two images of a scene, each image having a different field of view. The dual field-of-view optical imaging system includes a frontal dual focus lens, the dual focus lens having a central zone of focal length f1 producing a wide field-of-view image at a first focal plane and a peripheral zone of focal length f2 greater than f1 producing a narrow field-of-view image at a second focal plane; and a detector for detecting and acquiring the wide field-of-view image and the narrow field-of-view image, the detector being movable along an optical path for selective positioning at the first focal plane or the second focal plane.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.