Spectral Design Flexibility of LED Brings Better life

Publication: Research - peer-reviewConference article – Annual report year: 2012

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Light-emitting diodes (LEDs) are penetrating into the huge market of general lighting because they are energy saving and environmentally friendly. The big advantage of LED light sources, compared to traditional incandescent lamps and fluorescent light tubes, is the flexible spectral design to make white light using different color mixing schemes. The spectral design flexibility of white LED light sources will promote them for novel applications to improve the life quality of human beings. As an initial exploration to make use of the spectral design flexibility, we present an example: 'no blue' white LED light source for sufferers of disease Porphyria. An LED light source prototype, made of high brightness commercial LEDs applying an optical filter, was tested by a patient suffering from Porphyria. Preliminary results have shown that the sufferer could withstand the light source for much longer time than the standard light source. At last future perspectives on spectral design flexibility of LED light sources improving human being's life will be discussed, with focus on the light and health. The good health is ensured by the spectrum optimized so that vital hormones (melatonin and serotonin) are produced during times when they support human daily rhythm.
Original languageEnglish
JournalProceedings of SPIE, the International Society for Optical Engineering
Publication date2012
Volume8278
Pages827802
Number of pages7
ISSN0277-786X
DOIs
StatePublished

Conference

ConferenceSPIE Photonics West
CountryUnited States
CitySan Francisco, California
Period21/01/1226/01/12

Bibliographical note

Invited paper.

CitationsWeb of Science® Times Cited: 1

Keywords

  • Light-emitting diode, Color mixing, Spectral design, Light therapy
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