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A new method to test the photometric characteristics of lamps for motor vehicles

Authors
Journal
Optik - International Journal for Light and Electron Optics
0030-4026
Publisher
Elsevier
Publication Date
Volume
120
Issue
11
Identifiers
DOI: 10.1016/j.ijleo.2007.12.015
Keywords
  • Photometric Characteristics
  • Automotive Lamp
  • Simulation
  • Test
  • Light Pattern
Disciplines
  • Economics

Abstract

Abstract In this paper, a new method is proposed to test whether the automotive lamp's light pattern or shape satisfies the ECE or SAE regulation at about 3–5 m distance instead of the 25 m distances. From the simulation results, we can draw functions that can describe the correlation between the light source flux and the distance from the receiver plane to the light source. By this method, we can easily test the satisfaction of the light pattern or shape with the regulation of ECE or SAE or National Standard of China in Automobile Lamp test. By this method, an economically efficient method may be provided for our test before the lamps’ formal test in the specified testing field.

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