Beyond the Physical Limit: Energy Saving Lighting and Illumination by Using Repetitive Intense and Fast Pulsed Light Sources and the Effect on Human Eyes

Jinno, Masafumi; Morita, Keiji; Tomita, Yudai; Toda, Y. R.; Motomura, Hideki

doi:10.2150/jlve.32.170

Cited by 5 publications

(1 citation statement)

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“…On the other hand it has been demonstrated that the pulsing of lamps offers opportunities for energy savings according to the Broca-Sulzer effect [2,3]. We therefore decided to conduct an experiment with volunteers and explore the parameter space (frequency and duty cycle) in order to find a region of operating modes where pulsing would not be at least visually perceived.…”

Section: Introductionmentioning

confidence: 99%

LED Flicker: A Drawback or an Opportunity?

Kitsinelis¹,

Arexis-Boisson²,

Zhang³

et al. 2013

OPJ

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In this paper we examine the flicker of commercial LED lamps and with the help of volunteers we explore the parameter space (frequency and duty cycle) in order to find pulsing operating conditions under which the light fluctuations are not visually perceived. The results show that LEDs under mains voltage manifest the most extreme cases of flicker and we also confirm that under pulsing mode the overall impression is of higher brightness which is an opportunity for energy savings. The results also show that the background color and luminance contrast is of high importance. Finally we propose an easy method for consumers to detect flickering of light sources under mains voltage.

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Section: Introductionmentioning

confidence: 99%