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)
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:
Assignee:
WENZHOUJIAYI INSTR CO LTD (CN)
International Classes:
G01J3/10; G01J3/46
Foreign References:
CN205384086U | 2016-07-13 | |||
CN105651386A | 2016-06-08 | |||
CN104748848A | 2015-07-01 | |||
CN203024866U | 2013-06-26 | |||
CN101883971A | 2010-11-10 | |||
CN201464043U | 2010-05-12 | |||
CN203259249U | 2013-10-30 | |||
US8592748B2 | 2013-11-26 |
Other References:
See also references of EP 3324160A4
Attorney, Agent or Firm:
ZHEJIANG NAQI LAW FIRM (CN)
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