Colorimetric evaluation of photographic film
US4310848A · kind A · utility
9Cited by
2References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 18, 1979 |
| Grant date | Jan 12, 1982 |
| Priority date | — |
| Expiry date | Oct 18, 1999 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B27/735
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method and apparatus for colorimetric evaluation of photographic film by passing light through the film to form a visual image, determining corrections to be made to provide a desired color corrected version of the image, and providing such corrections by adjusting the intensities of separate light beams of different primary colors which are used to form the visual image.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.