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Patent Searching and Data


Title:
STANDARD ILLUMINANT COLOR MATCHING BOX
Document Type and Number:
WIPO Patent Application WO/2017/147987
Kind Code:
A1
Abstract:
A standard illuminant color matching box. The color matching box comprises: a box body (1) with an observation chamber (11) formed inside the box body (1); a standard illuminant (2) provided on a top portion of the observation chamber (11), wherein the standard illuminant (2) comprises a halogen lamp (21); a filter device (12) provided below the halogen lamp (21); and an LED light source (22) provided on the top portion of the observation chamber (11). A light emitted by the halogen lamp (21) passes through the filter device (12) and mixes with a light from the LED light source (22). The light energy provided by the narrow band LED light source (22) is within 20% of the total radiant energy. The quality of a supplemented lighting has a Category A Metamerism Index < 0.2 as specified for CIE Standard Illuminant D. The supplemented lighting is used to perform color testing on a test subject to ensure long-term accuracy of color testing results.

Inventors:
QIU JIAYI (CN)
CUI GUIHUA (CN)
LI CHANGJUN (CN)
ZHAN YINGSHENG (CN)
LIN JIAN (CN)
DENG DAPING (CN)
Application Number:
PCT/CN2016/079510
Publication Date:
September 08, 2017
Filing Date:
April 15, 2016
Export Citation:
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Assignee:
WENZHOUJIAYI INSTR CO LTD (CN)
International Classes:
G01J3/10; G01J3/46
Foreign References:
CN205384086U2016-07-13
CN105651386A2016-06-08
CN104748848A2015-07-01
CN203024866U2013-06-26
CN101883971A2010-11-10
CN201464043U2010-05-12
CN203259249U2013-10-30
US8592748B22013-11-26
Other References:
See also references of EP 3324160A4
Attorney, Agent or Firm:
ZHEJIANG NAQI LAW FIRM (CN)
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