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LED Flux Measurement Methods for Automotive Lighting
Technical Paper
2006-01-0288
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
Currently, there is still no standardized method to measure LED flux in automotive lighting. Usually, LED manufacturers provide a lumen range (or bin) for a given type of LED. However, with the increased usage of high-flux LEDs, the need for an absolute lumen value is becoming important for optical design of automotive lamps. The knowledge of an LED lumen value is necessary for more precise lamp designs. Three different types of measurements for LED flux were compared. These three measurement methods are: 1). 2π flux integrating sphere; 2). 4π flux integrating sphere; and 3). Goniometer. In this paper, we will discuss the results from these three methods, and conclude with recommendations on the preferred methods and parameters critical for accurate LED flux measurements.
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Authors
Citation
Chen, J., Wang, B., and Taleb-Bendiab, A., "LED Flux Measurement Methods for Automotive Lighting," SAE Technical Paper 2006-01-0288, 2006, https://doi.org/10.4271/2006-01-0288.Also In
Automotive Lighting Technology & Human Factors in Driver Vision & Lighting; Rear Vision & Indirect Vision
Number: SP-1993; Published: 2006-04-03
Number: SP-1993; Published: 2006-04-03
SAE 2006 Transactions Journal of Passenger Cars: Mechanical Systems
Number: V115-6; Published: 2007-03-30
Number: V115-6; Published: 2007-03-30
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