Title:
LIGHT SOURCE COLOR RENDERING INDEX ADJUSTMENT METHOD, AND STAGE LAMP USING SAME
Document Type and Number:
WIPO Patent Application WO/2024/113514
Kind Code:
A1
Abstract:
Disclosed in the present invention are a light source color rendering index adjustment method, and a stage lamp using same. The light source color rendering index adjustment method comprises: providing a controlled light source which comprises a first color rendering index LED chip group having a first color rendering index and a second color rendering index LED chip group having a second color rendering index; according to a target spectrum P目(λ) of a reference light source under a target color rendering index and a target color temperature, defining a range of chromaticity differences of the target spectrum and a range of color differences of fourteen Munsell color samples of the target spectrum; adjusting normalization coefficients KA and KB of relative spectral power distribution PA(λ) and PB(λ) of the first color rendering index LED chip group and the second color rendering index LED chip group, calculating relative spectral power distribution P合(λ)＝K1 PA(λ)+K2PB(λ) of a controlled light source synthetic light spectrum, and searching for K1 and K2 values which enable the relative spectral power distribution P合(λ) to fall into the range of chromaticity differences of the target spectrum and the range of color differences of the fourteen Munsell color samples of the target spectrum; and selecting proper K1 and K2 values to achieve the adjustment of color rendering indexes of the controlled light source.
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Inventors:
JIANG WEIKAI (CN)
Application Number:
PCT/CN2023/077821
Publication Date:
June 06, 2024
Filing Date:
February 23, 2023
Export Citation:
Assignee:
GUANGZHOU HAOYANG ELECTRONICS CO LTD (CN)
International Classes:
H05B45/20
Foreign References:
| CN108954041A | 2018-12-07 | |||
| CN109451624A | 2019-03-08 | |||
| CN111010765A | 2020-04-14 | |||
| CN216521202U | 2022-05-13 | |||
| US20130082622A1 | 2013-04-04 |
Attorney, Agent or Firm:
GUANGZHOU RUNHE INTELLECTUAL PROPERTY AGENCY (GENERAL PARTNERSHIP) (CN)
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