Casambi and Seoul Semiconductor partner on human-centric lighting

July 17, 2019 // By Julien Happich
human-centric lighting
Wireless lighting controls provider Casambi has teamed up with LED technology specialist Seoul Semiconductor to provide lighting designers with precision control of LED lights that match the spectrum of sunlight.

Casambi’s wireless control technology can now be used with Seoul Semiconductor’s SunLike Series LEDs, claimed to be the first LED light source to closely match the spectrum of sunlight.
‘Human-centric lighting’ describes lighting that is designed to work with the human body’s natural rhythms. It relies on the well-established fact that the human eye detects the presence of a particular wavelength of blue light in the spectrum that makes up sunlight, and uses this to judge what time of day it is. In this way, light helps regulate our sleep–wake cycles and other bodily rhythms, and has a significant impact on our mood and well-being.

Human-centric lighting harnesses this effect by adjusting its brightness and colour temperature during the day to mimic natural light, with the right amount of blue wavelength that triggers the body’s response. Seoul Semiconductor’s SunLike Series LEDs closely matched to real sunlight, so they provide a similar biological stimulus.
This was confirmed in a recent study by Dr Octavio L. Perez, adjunct researcher in integrative lighting at Mount Sinai Hospital in New York. The study, due to be published soon, looked at the non-visual effects of light on the body, and found that the SunLike Series LEDs provide up to 21% more stimulus than conventional LEDs at a colour temperature of 4000K, and the same stimulus as daylight at 6500K.

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