Recently, LED light sources have been widely applied in many domestic and foreign brands of projectors. Especially in the second half of 2008, LED projectors in the market has experienced unprecedented success, that among micro-projection, handheld projectors and home theatre projectors, LED light sources reviewed a clear lead in sales figures.
LED sources are being considered in the industry as the alternative for ultra-high pressure mercury halogen lamps and new projector bulbs, due to its excellent performance. As a cold-light source, LED light source advances over the traditional light bulb with its low heat, long service life of 20,000 hours. Therefore, LED projector sizes can be reduced mobile phone sizes, while also easy to maintain, without having the trouble to replace light bulbs every two years. In addition, LED light sources are also more environmentally friendly, as they do not cause mercury pollution.
In fact, as early as three or four years ago, LED light sources have been applied on projectors, but with a performance of dozens lumens brightness, those products cannot meet the general requirement of thousands of lumens, thus they were largely in the laboratory stage, without going into mass production. The development bottleneck was finally being overcome in 2008, with the projector light bulb manufacturer, Osram developed a new LED light source system that can achieve a brightness of more than 500 lumens. The breakthrough in technology allows LED projectors to finally emerge onto the markets, and with prices coming down quickly, the current home projector now costs about RMB8,000.
At present, the technology may not have reached a highly mature level, LED projector sales is no better than traditional projectors, but its energy-saving, environmental friendly, and other extraordinary features will make it a new favour in the projector market.