Open AccessEnhancing the CRI and lumen output for the 6600 K WLED with convex-dual-layer remote phosphor geometry by applying red-emitting MGSR3SI2O8:EU2+,MN2+ phosphor
Author(s) -
Thuc Minh Bui,
Nguyen Thi Phuong Loan,
Phan Xuan Le,
Nguyễn Đoàn Quốc Anh,
AnhTuan Le,
Le Van Tho
Publication year - 2020
Publication title -
international journal of power electronics and drive systems/international journal of electrical and computer engineering
Language(s) - English
Resource type - Journals
eISSN - 2722-2578
pISSN - 2722-256X
DOI - 10.11591/ijece.v10i4.pp3501-3507
Subject(s) - phosphor , color rendering index , color temperature , luminous efficacy , materials science , gamut , luminous flux , high color , light emitting diode , optoelectronics , dual layer , color difference , optics , computer science , layer (electronics) , physics , telecommunications , light source , artificial intelligence , nanotechnology , image processing , color image , image (mathematics) , enhanced data rates for gsm evolution
The traditional white LED product established with a single chip and a single phosphor results in a low color rendering index (CRI). The upgrade of LED package is comprised of two chips and one phosphor material and gives the higher CRI while keeping high luminous efficiency. Based on previous findings, the research paper performs the application of the two chips and two phosphors to enhance the color tunability of LEDs with different amounts and intensities of the two employed phosphors. Additionally, a color design model is built to serve the purpose of bettering the color fine-tuning of the white-light LED module. The maximum value of the difference between the measured CIE 1931 color coordinates and that of the simulated model is approximately 0.0063 around the 6600 K correlated color temperature (CCT). From the results, this study offers a quick approach to achieve the color fine tuning of a white-light LED module with a high CRI and luminous efficiency.