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Nichia | Fraunhofer | Featured | Research | Resources | Reports | Apr 22, 2020

Full Spectrum LEDs Outperform Standard LED Lighting, Study Shows

Full Spectrum LED products outperform conventional solutions, according to a study into the visual impact and perceptual performance of LED lighting by the Fraunhofer Institute for Building Physics (IBP) in Stuttgart, Germany.

Research conducted by the organization at its High Performance Indoor Environment Lab (HiPIELab) indicates that Full Spectrum LED lighting delivers greater visual comfort and an improved perception of naturalness (including color, condition and quality) compared to standard LED products. Researchers concluded that unrivalled color rendering for different color temperatures can be provided by Full Spectrum LEDs. 

Full Spectrum LEDs are usually categorized as those emitting light similar in composition to natural sunlight. NICHIA, for example, has developed a range of proprietary Full Spectrum LED solutions with specific benefits. For example, Optisolis™ technology accurately mimics sunlight but without producing any ultraviolet light (which can degrade precious artefacts) making it ideal for museums, art galleries and jewelry stores among other retail settings. Vitasolis™ products target human centric lighting applications with a color spectrum richer in cyan content to promote greater alertness.

The soon-to-be published Fraunhofer IBP study incorporated a technical comparison of the LED spectra to daylight spectra, a literature review addressing the effect of light spectra on humans, and a psychological study with 83 persons in an office setting. Each participant was tested for one hour in one of four different lighting settings comparing Full Spectrum LEDs with conventional LEDs on various aspects such as visual comfort, naturalness, concentration, general glare rating, sleepiness, alertness and glossiness. 

Dr. Ulf Meiners, Managing Director at Nichia Germany, said: “There is limited research on the impact of Full Spectrum LEDs on people’s perception, with a focus instead on the psychological effects of natural and artificial light in general. As a pioneer of true daylight white LED emitters, NICHIA welcomes the findings from Fraunhofer IBP. We hope new studies are developed to further demonstrate the performance of Full Spectrum LEDs on perception, behavior and health.”  

High Performance Indoor Environment Lab (HiPIELab) at Fraunhofer. Image provided by Fraunhofer Institute.

About NICHIA Corporation
Having ‘Ever Researching for a Brighter World’ as a motto, NICHIA takes great pride in being the technology leader and world’s largest LED manufacturer. Founded in 1956 as a specialist chemical producer, NICHIA quickly became the leader in luminescent materials (phosphors). Nichia later developed and commercialized the first high brightness blue LED in 1993 and the first white LED in 1996. Additional nitride-based LEDs in various colors were developed, including ultraviolet and visible laser diodes. NICHIA believes that its products will remain at the forefront of energy efficient solutions throughout the world for years to come.

NICHIA will continue to be a company that makes contributions to the world by evolving its original and unique technologies and ‘Ever Researching for a Brighter World’.

For more information, visit www.NICHIA.com

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