Camera
US6289181A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 23, 1998 |
| Grant date | Sep 11, 2001 |
| Priority date | — |
| Expiry date | Oct 23, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B2217/248
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A camera (1) is provided with an object lens, an aperture and guiding means for an image recording medium. The camera includes a means for providing generally scattered or white light to be incident on a first portion of the image recording medium and a light adjusting means for varying the dissipation of the white or scattered light across the aperture of the camera in relation to the exposure time across the aperture. The camera also includes a lens system with an object lens and an additional focusing means with a focal length in a first area being infinite and in a second area being relatively short focusing light on the image close to the lens system, for example on the plate (10) held in front of the lens system. Light enhancement means are also provided for increasing the light on the first portion of the image recording medium.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.