Illustrating the Luminaire Comparison Method

Sammarco, John J.; Helfrich, William

doi:10.1109/tia.2021.3057307

Cited by 2 publications

(1 citation statement)

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“…More than 20% of the energy provided in developed countries is consumed by lighting [8]. Fluorescent lamps and incandescent filament lamps have been used in lighting devices [9][10][11][12][13],…”

Section: Introductionmentioning

confidence: 99%

Effect of LED Light Frequency on an Object in Terms of Visual Comfort

Ozcelik,

Akinci,

Yilmaz

et al. 2023

Electric Power Components and Systems

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CONTENTS 1. Introduction 2. Experimental Setup 3. Results 4. Discussion Conclusion ReferencesAbstract-Light emitting diodes (LEDs) play an essential role in lighting, and green earth activities because of their high efficiency, longevity, and reduction of carbon dioxide emissions during illumination. However, the brightness level of LED light sources must be adjusted appropriately for the backlight source or illumination; therefore, pulse amplitude modulation (PWM) is a commonly used method of LED control. This article experimentally investigated human interaction with the visual comfort effect of the light obtained using different PWM frequencies on an object in a sensor-based intelligent lighting system. Critical light frequencies are vital for the eye to distinguish light stimuli according to time. Histograms of the object were created according to the light frequency, and the results are discussed. The eye's response to light frequencies changing over time is important for visual comfort, and examining light frequencies in the range of 25-250 Hz was sufficient to conclude the study. It has been experimentally shown that light frequencies around 160 Hz, and above this value provide visual comfort.

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