Title:
MULTI-ANGLE COLORIMETER
Document Type and Number:
WIPO Patent Application WO/2012/147488
Kind Code:
A1
Abstract:
A multi-angle colorimeter (100) uses a multi-angle method and a symmetrical arrangement method in the optical configuration thereof. Photodetection on each side of a symmetrical arrangement is performed using one photodetector unit (41). The photodetector unit (41) being a multi-use unit allows the device to be simpler and eliminates any impact caused by individual differences unique to each of a plurality of photodetector units. Meanwhile, it is also possible to use elements in a multi-use manner for illumination. It is possible to reduce size and cost of the device by using a photodetector unit having a comparatively low wavelength resolution as a photodetector unit used on one side when using multiple photodetector units. As a result, it is possible to reduce the orientation error caused by a relative slant of the measurement surface, while achieving a reduction in size and cost of the device.
Inventors:
TERAOKA YOSHITAKA (JP)
TSURUTANI KATSUTOSHI (JP)
YAMANOI YUTA (JP)
TSURUTANI KATSUTOSHI (JP)
YAMANOI YUTA (JP)
Application Number:
PCT/JP2012/059364
Publication Date:
November 01, 2012
Filing Date:
April 05, 2012
Export Citation:
Assignee:
KONICA MINOLTA OPTICS INC (JP)
TERAOKA YOSHITAKA (JP)
TSURUTANI KATSUTOSHI (JP)
YAMANOI YUTA (JP)
TERAOKA YOSHITAKA (JP)
TSURUTANI KATSUTOSHI (JP)
YAMANOI YUTA (JP)
International Classes:
G01J3/50
Foreign References:
| JPH0968462A | 1997-03-11 | |||
| JP2009264924A | 2009-11-12 | |||
| JP2007315761A | 2007-12-06 | |||
| JP2001050817A | 2001-02-23 | |||
| JP2008523392A | 2008-07-03 | |||
| JP2002005830A | 2002-01-09 | |||
| JP2007315761A | 2007-12-06 |
Other References:
See also references of EP 2703794A4
Attorney, Agent or Firm:
YOSHITAKE Hidetoshi et al. (JP)
Hidetoshi Yoshitake (JP)
Hidetoshi Yoshitake (JP)
Download PDF:
Claims: