Title:
SPECTROSCOPE AND MULTI-ANGLE COLORIMETER
Document Type and Number:
Japanese Patent JP2015001389
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a spectroscope and a multi-angle colorimeter with improved measurement accuracy while suppressing increase in size of devices.SOLUTION: An optical path conversion by an optical element 33 is an inversion conversion to invert a distance relationship of a plurality of detection beams DL on a photoelectric conversion surface CS of a photoelectric converter 35 from an optical axis into a distance relationship of a plurality of incident beams IL from the optical axis with respect to one direction where spectral measurement is carried out on the photoelectric conversion surface CS. By the optical path conversion, an incident beam with high intensity from the viewpoint of an incident angle distribution can be made to irradiate an end in the one direction (on a shorter wavelength side of a visible light region) of the photoelectric conversion surface CS of the photoelectric converter 25, which increases an output signal quantity on the shorter wavelength side in the visible light region where an output signal quantity in the photoelectric converter 35 is minimum. The optical element 33 is required only to achieve the above optical path conversion and use of a large member is not necessary, and therefore, reduction in size of the device as a whole can be achieved.
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Inventors:
TERAOKA YOSHITAKA
TSURUYA KATSUTOSHI
NAKATANI TORU
TSURUYA KATSUTOSHI
NAKATANI TORU
Application Number:
JP2013124485A
Publication Date:
January 05, 2015
Filing Date:
June 13, 2013
Export Citation:
Assignee:
KONICA MINOLTA INC
International Classes:
G01J3/36; G01J3/10; G01J3/50
Attorney, Agent or Firm:
Hidetoshi Yoshitake
Takahiro Arita
Takahiro Arita
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