Japan's NHK uses new materials to develop LED lamps to effectively reduce glare and glare

The Japan Broadcasting Corporation (NHK) announced that it has jointly developed white LED lighting fixtures using Cl_MS fluorescent materials (fluorescent materials that absorb purple light and emit yellow light) with Koito Manufacturing Co., Ltd. The characteristic of the new product is that it reduces glare compared with the white LED lighting fixtures previously used in TV program production sites. The new product adopts Cl_MS fluorescent material, which has more stable spectral characteristics (intensity distribution of each light wavelength) than the original white LED and can be designed with a large light-emitting area, thus reducing the glare problem. NHK and Koito Productions trial-produced two lighting fixtures, the "Caster Light" that provides lighting for announcers in studios and the "Soft Light" that is used for outdoor shooting and broadcasting, and conducted comparative evaluations with traditional white LED lighting fixtures. About 90% of trial users responded that "there is no glare in the trial product." NHK recently used this kind of white LED lighting equipment for filming. NHK will further trial the product in programs, targeting Optimize it for program production purposes. Currently, TV program production sites are using white LED lighting fixtures to promote energy-saving light sources, but some participants reported that "the light source feels a bit dazzling when it enters the field of vision."

Comments: Glare is indeed a big problem with LED lighting, especially LED street lights. The glare at night makes people extremely uncomfortable. At present, various manufacturers have adopted various methods, including brushed PC masks, frosted masks, special phosphor materials, etc., but these methods are not ideal. Brushed masks can eliminate glare, but the spot phenomenon is more serious. People's eyes are prone to fatigue when exposed to this kind of light for a long time. If you use your eyes under this kind of light for a long time, it will also cause eye astigmatism; frosted and milky white masks have too much light loss and the effect is too poor. If this problem can be solved, then there will be no problem with the user experience of LED lighting. If Japan can solve the problem of glare this time, then LED will take another big step towards people.