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Patent Searching and Data


Title:
ILLUMINATION EVALUATION DEVICE AND ILLUMINATION EVALUATION METHOD
Document Type and Number:
WIPO Patent Application WO/2013/183195
Kind Code:
A1
Abstract:
An illumination evaluation device which evaluates an illumination environment from an arbitrary light source comprises: a visual sign presentation means for presenting, in arbitrary examination locations upon an illumination face (12) whereupon illumination light emitted from a light source is projected, visual signs (13) for acquiring a contrast sensitivity of an observer who views the illumination face (12); and an examination result recording means for acquiring contrast sensitivity values when the observer has viewed the visual signs (13) which are presented by the visual sign presentation means and recording the acquired contrast sensitivity values and location information of the examination locations. An observability of the arbitrary locations upon the illumination face (12) of the light source is evaluated from the contrast sensitivity values.

Inventors:
KAWAMURA RYO
Application Number:
PCT/JP2013/000734
Publication Date:
December 12, 2013
Filing Date:
February 12, 2013
Export Citation:
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Assignee:
PANASONIC CORP (JP)
International Classes:
G01M11/00; A61B3/028; G01J1/02; G01J3/50; G01J5/60; H05B37/02
Domestic Patent References:
WO2010064492A12010-06-10
Foreign References:
JPH09147082A1997-06-06
JP2012064541A2012-03-29
JP3623401B22005-02-23
JP3850186B22006-11-29
JP2012128324A2012-07-05
Other References:
YUTAKA TAKEZAKI: "Study of illumination by a desk lamp", BULLETIN OF THE FACULTY OF SCHOOL EDUCATION, vol. 11, 25 December 1988 (1988-12-25), pages 155 - 161, XP008174775
SHODIQ W ALWI ET AL.: "Research on Comfortable Lighting Environment For Presentation", ARCHITECTURAL INSTITUTE OF JAPAN 2003 NENDO TAIKAI (TOKAI) GAKUJUTSU KOEN KOGAISHU KANKYO KOGAKU I, vol. D-1, 30 July 2003 (2003-07-30), pages 327 - 328, XP008174573
See also references of EP 2857819A4
Attorney, Agent or Firm:
ITO, Masakazu et al. (JP)
Masakazu Ito (JP)
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