Test chart color measuring system and a color output apparatus correcting system
US7006690B1 · kind B1 · utility
16Cited by
7References
30Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 25, 2000 |
| Grant date | Feb 28, 2006 |
| Priority date | — |
| Expiry date | Dec 31, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01J3/0216
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A color measuring head is provided with an illuminating unit, a light receiving optical system, a color image pickup unit, a drive controller and a measurement controller, and picks up an image of a test chart as a measurement specimen placed to face a specimen opening. A personal computer is provided with a monitor, a memory unit, and a CPU. The CPU calculates color values of color samples by reading and implementing a control program stored in the memory unit. The color of the test chart in which a plurality of color samples are arrayed can be automatically measured within a short period of time.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.