Integrating densitometer
US4417818A · kind A · utility
13Cited by
6References
8Claims
0Family size
Inventor
Key dates
| Filing date | Feb 12, 1981 |
| Grant date | Nov 29, 1983 |
| Priority date | — |
| Expiry date | Feb 12, 2001 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01J3/465
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An integrating densitometer for comparing unknown values of an integrated color print with reference values of a standard to indicate changes in density and quality and quantity characteristics of color for correcting the values of the unknown to have substantially the values of the reference, the densitometer having a photopic filter before a light sensor, and a master control for biasing simultaneously individually adjustable color controls.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.