Title: LED application specific calibration method for color measurements
Authors: Nimz, Thomas
Bodenstein, Christian
Berekovic, Mladen
Citation: 2015 International Conference on Applied Electronics: Pilsen, 8th – 9th September 2015, Czech Republic, p.169-174.
Issue Date: 2015
Publisher: Západočeská univerzita v Plzni
Document type: konferenční příspěvek
URI: http://hdl.handle.net/11025/35115
ISBN: 978-80-261-0385-1 (Print)
978-80-261-0386-8 (Online)
ISSN: 1803-7232 (Print)
1805-9597 (Online)
Keywords: diody vyzařující světlo;Analýza barev obrazu;měření teploty;kalibrace;modulace šířky pulsu;barva;teplotní senzory
Keywords in different language: light emitting diodes;image color analysis;temperature measurement;calibration;pulse width modulation;color;temperature sensors
Abstract in different language: More and more light applications use multiple light emitting diodes to generate defined light spectra. Often reaching defined brightness levels and an exact color coordinate or color temperature is desired. The LEDs change their light spectra over time or under influence of different environmental temperatures. One possibility is to compensate the resulting color shift of the illumination by integrating a color sensor. Before the light can be re-adjusted or regulated, a precise color measurement must be guaranteed. This paper studies the color measurement accuracy, based on specific filter curves of sensors and models of red, green, blue and white LEDs fitted to measure data.
Rights: © University of West Bohemia
Appears in Collections:Applied Electronics 2015
Applied Electronics 2015

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