Title:
COLOR SENSOR
Document Type and Number:
WIPO Patent Application WO/2011/158540
Kind Code:
A1
Abstract:
Provided is a color sensor which can be used, with a reduced number of light sources, for a multi-directional illumination and unidirectional light-receiving colorimeter. To this end, a curved reflection mirror (15) is disposed to be focused on the emission point of a light source (13), and an optical path separating means (16) having two plane mirrors (16a, 16b) is disposed in the direction of a beam of light emitted from the light source (13), the beam having been collimated by the curved reflection mirror (15). The collimated beam reflected on the plane mirror (16a) illuminates directly a surface to be measured, while the collimated beam reflected on the plane mirror (16b) is reflected on an illuminating reflection mirror (17) to then illuminate in a different direction the surface to be measured.
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Inventors:
HOSOYA AKIHIRO
Application Number:
PCT/JP2011/056735
Publication Date:
December 22, 2011
Filing Date:
March 22, 2011
Export Citation:
Assignee:
OMRON TATEISI ELECTRONICS CO (JP)
HOSOYA AKIHIRO
HOSOYA AKIHIRO
International Classes:
G01J3/10; G01J3/46
Foreign References:
| US5486701A | 1996-01-23 | |||
| JP2001099711A | 2001-04-13 | |||
| JPH01262404A | 1989-10-19 | |||
| JP2002310626A | 2002-10-23 | |||
| JPH0643700Y2 | 1994-11-14 |
Attorney, Agent or Firm:
TANAKA, Mitsuo et al. (JP)
Mitsuo Tanaka (JP)
Mitsuo Tanaka (JP)
Download PDF:
Claims:
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