The world's most bright white Nichia LED

The world's most bright white Nichia LED

Figure 1: beam reach 1000lm products Figure 2: luminous efficiency of 50lm/W products Nichia chemical industries developed for beam white light emitting diode (LED) module 1000lm. "The brightness of the product reached the highest level in the white light-emitting diode module (Figure 1), around 600LM" (the company). Module installation area of 40mm * 40MM, thickness of 10mm. When the output beam 1000lm power consumption is 30W. The maximum input power is 50W. The mounting substrate is provided with a plurality of blue light-emitting diode chips and a yellow fluorescent material is combined. The product is equipped with a blue light-emitting diode chip size is larger than the usual variety (the company), but did not disclose details. Also refused to disclose the number of installation. The period of product has not been determined yet. The display of the white light-emitting diode module luminous efficiency of 33lm/W, with the current market white light-emitting diode equivalent or higher. In general, with the increase in output power inside the white light-emitting diode module will increase the temperature, so the luminous efficiency decreased. In addition, if the size of the light-emitting diode chip will increase the electric field distribution inside the chip, will also reduce the luminous efficiency. The "can not be disclosed in detail, by improving the blue light-emitting diode chip electrode structure and packaging technology to improve the luminous efficiency" (the company). In addition, Nichia chemical industries for the first time to the public for the luminous efficiency of white light emitting diode module 50lm/W. The company has disclosed the white light-emitting diode module at the Institute in early 2003. The diameter of the shell of the 5mm type package, when applied +3.6V voltage current of 20mA beam time is 3.6lm. Combination of 300 micron * 300 micron blue light-emitting diode chip and yellow fluorescent material. The company uses the white light emitting diode module as a lighting device to illuminate the booth (Figure 2). (reporter: Okubo So)