Integrator for analyzing the spectral content of printing illumination
US4494876A · kind A · utility
3Cited by
9References
24Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 17, 1982 |
| Grant date | Jan 22, 1985 |
| Priority date | — |
| Expiry date | Feb 17, 2002 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B27/735
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An integrator for spectral analysis of printing illumination from photographic film including a lens for collimating the printing illumination into a beam. The integrator includes first and second color separation filters which divert respective colors from the beam. First and second phototransducers are provided for receiving the respective colors. A third phototransducer receives the beam passing through the first and second filters. Each phototransducer produces a signal representative of the intensity of the respective color.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.