Paper Title:
Equivalent Brightness Fitting Calculation Method about White LEDs
  Abstract

White LEDs can show different correlated color temperature (abbreviated as CCT) by adjusting the luminous spectrum peak distribution and relative strength. Recent research results indicate that spectral luminous efficiency function of mesopic vision Vmes(λ) and equivalent brightness are associated with luminous spectra of light sources. A series of white LEDs with different CCT are tested and calculated, it shows white LED with higher CCT has higher mesopic vision equivalent brightness, although the brightness are identical when the tester corrected by traditional photopic vision spectral luminous efficiency V(λ). From the equivalent brightness curve fitting, the curve can be described as a polynomial function, for it excellent correlation, the more value of equivalent brightness could be calculated without complex derivation.

  Info
Periodical
Chapter
Chapter 5: Materials in Energy and Environment (2)
Edited by
Dongye Sun, Wen-Pei Sung and Ran Chen
Pages
2721-2725
DOI
10.4028/www.scientific.net/AMM.121-126.2721
Citation
Y. Yang, L. Wang, C. Z. Zhu, "Equivalent Brightness Fitting Calculation Method about White LEDs", Applied Mechanics and Materials, Vols. 121-126, pp. 2721-2725, 2012
Online since
October 2011
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Paul C.P. Chao, Lun De Liao, Chi Wei Chiu, Chien Yu Shen
Abstract:A novel dual-cone-shaped side-emitting lens cap for High Brightness Light Emitting Diodes (HB-LEDs) is proposed for improving brightness and...
132
Authors: Ke Huang, Ji Weng, Ying Kui Hu
Chapter 8: Frontiers of Construction Information
Abstract:Four kinds of traffic lighting sources HPS, MH, LED and EDL are widely used in roads and tunnels, the luminance at this place almost in the...
4918
Authors: Hua Rui Wu, Rong Hua Gao, Chun Jiang Zhao
Chapter 8: Nanomaterials and Nanomanufacturing
Abstract:Per-Pixel lighting can greatly improve the computational efficiency because of the model has been completed the hidden and visibility judge...
1631
Authors: Chuan Zheng Zhu, Yong Yang, Lei Wang
Chapter 1: Material Science Technology
Abstract:The coefficient of retroreflection is considered as the most important parameter of retroreflective material, the value of which is tested by...
67