Color-balanced glare reduction system for flash cameras
US6088541A · kind A · utility
18Cited by
2References
19Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 17, 1998 |
| Grant date | Jul 11, 2000 |
| Priority date | — |
| Expiry date | Nov 17, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B2215/0592
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A flash camera with glare controlling ability for general photographic use is described. It includes at least two panchromatic reflective sheet polarizing filters. One filter is incorporated in the flash unit to produce a polarized light flash source. The flash source also incorporates light redirecting means such that a majority of light from the flash is directed toward the photographic scene. A second filter over the camera lens excludes that light originating from the flash source which is specularly reflected from the photographic scene.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.