Brightness up to 50 million cd/m2! Nichia white laser light source brightness increased by 5 times

[BP] the Nikkei news agency reported Nichia announced the successful development of the use of blue semiconductor laser, the brightness can reach 50 million cd/m2 white light source. April 2005 white light source for the first time, the brightness of the current 1/5, only 10 million cd/m2, a full increase in brightness within a year of 5 times. The brightness of the "almost comparable with the HID lamp" (the company). Compared with the current market supply of 25 million cd/m2, brightness also increased by 1 times. The 90lm beam can be obtained from a diameter of 1.25mm (current of 480 Ma). The company said it would supply samples in mid 2006. Intended for use as light sources such as endoscopes, monitors and headlights.

White light source to obtain white light by blue semiconductor laser, optical fiber and phosphor. The utility model is characterized in that one end face of the optical fiber is connected with the exit surface of the laser, and the wavelength is coated on the other end surface of the fiber. The utility model is characterized in that the light emitting part of the light emitting part is separated from the luminous part of the external part. In order to improve the brightness, the efficiency of blue semiconductor laser and the wavelength conversion efficiency of phosphor were improved. In this case, however, due to an increase in the amount of light that will cause deterioration of the organic material used in the coating, it is not possible to ensure long-term reliability. Therefore, the white light-emitting part of the use of inorganic materials. Details of the method for the formation of inorganic materials are not disclosed.