Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
WHITE LED LAMP BEAD, LIGHT BAR AND LIGHT FIXTURE
Document Type and Number:
WIPO Patent Application WO/2020/220688
Kind Code:
A1
Abstract:
A white LED lamp bead, a light bar and a light fixture. A relative spectrum of the white LED lamp bead is Ф(λ). A relative spectrum of black body radiation having the corresponding color temperature is S(λ). Area normalization is performed on Ф(λ) and S(λ) to convert the same to an equal energy spectrum Ф'(λ) of the white LED lamp bead and an equal energy spectrum S'(λ) of the black body radiation having the corresponding color temperature. R-squared (R) values of the equal energy spectrum of the white LED lamp bead and the equal energy spectrum of the black body radiation satisfy the following formula (I): when λi is 380 nm, λn is 680 nm, R ≥ 85％. The invention enables a low amplitude of fluctuation in spectra and excellent spectral continuity, such that a spectrum of a light fixture of the invention approximates to the spectrum of sunlight, thereby providing a user performing indoor activities with favorable illumination resembling an outdoor environment.

Inventors:
ZHANG JINHUI (CN)
MAI JIAER (CN)
YUAN YIKAI (CN)
LIANG JINQIN (CN)
ZHANG YUNYUAN (CN)
LI CHENG (CN)
Application Number:
PCT/CN2019/124920
Publication Date:
November 05, 2020
Filing Date:
December 12, 2019
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
FOSHAN NATIONSTAR OPTOELECTRONICS CO LTD (CN)
International Classes:
F21K9/00; F21K9/64; F21V9/38; H05B33/02
Foreign References:
CN110094641A2019-08-06
CN101378105A2009-03-04
CN109538951A2019-03-29
CN108954040A2018-12-07
CN105782747A2016-07-20
CN208424845U2019-01-22
JP4363215B22009-11-11
Attorney, Agent or Firm:
KANGXIN PARTNERS, P.C. (CN)
Download PDF:
View/Download PDF      PDF Help



 
Previous Patent: LOUDSPEAKER APPARATUS

Next Patent: LIGHT-EMITTING SYSTEM FOR HEALTHY LIGHTING, LIGHT BAR AND LAMP