The entire light spectrum of the sun in one LED: Page 5 of 6

June 17, 2020 // By Simone Hettinger
light spectrum
Daylight LEDs can produce approximately the light spectrum of the sun. What advantages do current generations of LEDs offer compared to other light sources and what influence do they have on people?

Special phosphor mixture

euroLighting's LED products are based on the concept of physical lighting that meets both visual needs - such as natural color vision and easy contrast discrimination - and physiological needs - such as promoting well-being and health, under the name Human Sun Lighting.

Fig. 6: The spectrum of the daylight LED distributed by
euroLighting has an almost ideal sunlight spectrum at
colour temperatures above 5000 K.

By using blue and violet chips and a specially developed phosphorus mixture instead of yellow phosphor, it is possible to produce a light spectrum that comes close to the even sunlight spectrum - without the pronounced blue peak. LEDs such as the Daylight series from Smart Eco Lighting offer an almost ideal sunlight spectrum at a color temperature of over 5000 K (Fig. 5) and also at lower color temperatures. This is achieved by a very similar spectrum to that of the ideal thermal light source over the entire visible range.

Fig. 7: The colour spectrum of the broadband sunlight LED
extends into infrared.

It contains all the important components of light as provided by sunlight. This means that the LEDs can be used in offices, schools and workplaces. They create the conditions to meet the natural needs of humans, but also those of plants and animals. New developments worldwide include broadband solar spectrum LEDs that reproduce the entire visible light spectrum of the sun and additionally emit light down to infrared of 1000nm (Fig. 7).

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