French authorities warn of health dangers from LED lighting
|CTVnews 15 May 2019 at 13:46|
Long-lasting, energy efficient and inexpensive, light-emitting diode (LED) technology has gobbled up half of the general lighting market in a decade, and will top 60 percent by the end of next year, according to industry projections. (Dimitris66 / IStock.com)
Published Wednesday, May 15, 2019 4:51PM EDT
New findings confirm earlier concerns that "exposure to an intense and powerful [LED] light is photo-toxic and can lead to irreversible loss of retinal cells and diminished sharpness of vision," the French Agency for Food, Environmental and Occupational Health & Safety (ANSES) warned in a statement .
The agency recommended in a 400-page report that the maximum limit for acute exposure be revised, even if such levels are rarely met in home or work environments.
The report distinguished between acute exposure of high-intensity LED light, and "chronic exposure" to lower intensity sources.
Long-lasting, energy efficient and inexpensive, light-emitting diode technology has gobbled up half of the general lighting market in a decade, and will top 60 percent by the end of next year, according to industry projections.
LED uses only a fifth of the electricity needed for an incandescent bulb of comparable brightness.
The world s leading LED light-bulb makers are GE Lighting, Osram and Philips.
The basic technology for producing a white light combines a short wavelength LED such as blue or ultraviolet with a yellow phosphor coating. The whiter or "colder" the light, the greater the proportion of blue in the spectrum.