The optimized PWM driving for the lighting system based on physiological characteristic of human vision

Wang, Ping-Chieh; Uang, Chii-Maw; Hong, Yi-Jian; Ho, Zu-Sheng

doi:10.1117/12.894503

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2013

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“…It is a headache problem to vary the brightness in a strobe system. Since the time is too short to do PWM [1,2,3]. The LED strobe controller should have several programmable parameters set, such as: brightness, pulse width of trigger signal, delay time, and exposure time.…”

Section: Technical Work Preparation (Size 10 Bold)mentioning

confidence: 99%

LED strobe lighting for machine vision inspection

Lin

Uang

Wang

et al. 2013

2013 International Symposium on Next-Generation Electronics

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A strobe method to control LED lighting source for machine vision inspection is a better design than that of traditional method that let LED always ON but adjustable brightness. A successful image processing depends on whether can retrieve a clear image which is the key work of the image processing. This paper introduces how to design a well strobe controller, to optimize the strobe control strategy to obtain a clear image, and is conducive to the establishment of a complete machine vision system.

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Section: Technical Work Preparation (Size 10 Bold)mentioning

confidence: 99%