Imaging device with solid optical member
US7154551B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 6, 2002 |
| Grant date | Dec 26, 2006 |
| Priority date | — |
| Expiry date | Jan 19, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B13/06
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An imaging device includes a convex mirror for reflecting first incident light representing an object, the convex mirror having a shape of solid of revolution; an imaging mechanism for taking a reflected image represented by light reflected in the convex mirror; and an optical member for guiding the first incident light toward the convex mirror and guiding the reflected light toward the imaging mechanism, the optical member having an attenuation section for attenuating second incident light which is incident on an outer circumferential surface of the optical member in an opposite direction to the first incident light, passes through the optical member, is reflected by an inner circumferential surface of the optical member so as to be directed toward the convex rotational mirror, and is superimposed on the first incident light.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.