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Title:
COLOR MEASURING INSTRUMENT AND LIGHT SOURCE DEVICE
Document Type and Number:
Japanese Patent JP2006071589
Kind Code:
A
Abstract:

To provide a color measuring instrument and a light source device, both reduced in size.

A plurality of white color LEDs 21, 22, 23, and color filters 24, 25, 26 respectively emit lights different in wavelengths; an irradiating light guide member 203 guides to a testing paper face a mixed beam mixed with the lights emitted from the plurality of white color LEDs 21, 22, 23, and color filters 24, 25, 26; a photoelectric transfer part 27 receives a reflected beam reflected by the test paper face, and converts the received reflected beam into a light intensity signal; and a color measuring part 3 resolves the light intensity signal converted by the photoelectric transfer part 27 in every of the plurality of wavelengths of the light source, and measures a color of test paper, on the basis of resolved light intensity signals.


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Inventors:
KURATA JUNICHI
UCHIYAMA HIRONOBU
Application Number:
JP2004258436A
Publication Date:
March 16, 2006
Filing Date:
September 06, 2004
Export Citation:
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Assignee:
UNIV KANSAI
International Classes:
G01J3/51; G01N21/27; G01N21/78
Domestic Patent References:
JP2001514413A2001-09-11
JPH10505407A1998-05-26
JP2003167243A2003-06-13
Foreign References:
WO1999008080A11999-02-18
Attorney, Agent or Firm:
Etsushi Kotani
Takao Ito
Jiro Higuchi
Shinsuke Otsuki



 
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