Toshiba is about to launch a high power white LED lighting

Toshiba will officially enter the ordinary lighting light source can be used for high power white light emitting diode (LED) market. Toshiba recently successfully developed 2W electric energy input time standard for 60lm and 30lm varieties, 60lm products began to supply production since October 2005, 30lm products in July to start mass production delivery. In addition to lighting equipment, it is also available for decorative and LCD panel backlight and other fields. The scale of production is 1 million monthly production plan. Before mass production, will be in July 2005 and in the beginning of the supply of 60lm product samples TL10W02-D and 30lm samples TL10W01-D". Sample price, 60lm products for 700 yen (about RMB 54 yuan), 30lm products for the yen (about RMB 38 yuan). The company held in October 2004, Japan's joint exhibition of high-tech (CEATEC JAPAN 2004) on the reference of this high power white LED.

The white LED are used in the blue chip LED yellow fluorescent material. When the input power is 2W, the luminous efficiency of 60lm products is 30lm/W, 30lm product is 15lm/W. 60lm products using a light-emitting efficiency higher than the 30lm blue chip LED. When the input power is over 1W, LED has the problem that the output of the LED chip itself is accumulated in the package, so that the luminous efficiency is reduced. The blue chip LED is encapsulated in the copper lead frame by the daughter board, so that the heat of the chip can be released to the copper material with low thermal resistance. In addition, in order to be able to effectively transmit light to the outside of the package, a reflective plate is designed based on the optical simulation around the blue LED chip.

The coordinates of white light in the CIE chromaticity diagram are (0.33, 0.32). The package size is 10.5mm * 5.0mm * 2.1mm.