Camera
US6097897A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jan 27, 1999 |
| Grant date | Aug 1, 2000 |
| Priority date | — |
| Expiry date | Jan 27, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B7/34
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A camera of this invention includes a photographing optical system, an imaging means, an optical path splitting means, a lens shutter, a focus detecting means, and a correcting means. The imaging means senses an optical image, formed by a light beam passing through the photographing optical system, on a predetermined photographing plane. The optical path splitting means splits at least a portion of a light beam passing through the photographing optical system. The lens shutter opens and closes the optical path of the photographing optical system. The focus detecting means receives the split light beam and detects the defocus amount of an image formation plane of the light beam with respect to a predetermined primary image formation plane. The correcting means corrects any deviation between an image formation plane of the photographing light beam imaged by the imaging means and the primary image formation plane.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.