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Patent Searching and Data


Title:
LAMP SOURCE FOR IMPROVING COLOR RENDERING INDEX AND METHOD FOR CHANGING COLOR TEMPERATURE
Document Type and Number:
WIPO Patent Application WO/2021/072678
Kind Code:
A1
Abstract:
A lamp source for improving a color rendering index and a method for changing a color temperature. The lamp source for improving a color rendering index comprises a housing (6); a control board (2) is provided in the housing (6), lamp beads are mounted on the control board (2), the lamp beads at least comprise a red lamp (43), a green lamp (42) and a white lamp (41), and a filter (3) for filtering out some blue light is provided in front of the white lamp (41). The method for changing a color temperature comprises: (1) after the peak of blue light of a white lamp (41) among the white lamp (41), a green lamp (42) and a red lamp (43) is filtered out by a filter (3), the white lamp together with the red lamp (43) and the green lamp (42) achieve the purpose of color mixing by means of a scattering plate (5), so as to form a single color-mixed light ray; and (2) a control board (2) performs current proportion adjustment on the basis of the original brightness, chromaticity and color temperature of the red lamp (43), the green lamp (42) and the white lamp (41), so as to achieve the purpose of adjusting a color-mixed spectrum.

Inventors:
XIAO GAOLI (CN)
Application Number:
PCT/CN2019/111480
Publication Date:
April 22, 2021
Filing Date:
October 16, 2019
Export Citation:
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Assignee:
XIAO GAOLI (CN)
International Classes:
F21K9/20; F21V9/40; F21V19/00; F21V23/00; H05B33/08
Foreign References:
CN103925533A2014-07-16
CN207279314U2018-04-27
CN102141210A2011-08-03
CN104633545A2015-05-20
CN101697654A2010-04-21
CN105354369A2016-02-24
US20140035472A12014-02-06
Attorney, Agent or Firm:
SHENZHEN HUIBANG INTELLECTUAL PROPERTY AGENCY FIRM (CN)
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