A reflective temperature-controllable laser excitation remote fluorescent material testing device

Abstract

The invention discloses a reflective temperature-controllable laser excitation remote fluorescent material testing device, which includes an optical platform, an integrating sphere, a spectrometer, a laser diode, a temperature control platform, a circular slide rail and a slider, wherein the temperature control platform is composed of a copper plate, a TEC , radiator, temperature sensor, fan, drive power supply, wires, temperature measuring instrument. During the test, the circular slide rail is placed on the right half of the integrating sphere, and the laser diode is placed on the slider. By moving the slider on the circular slide rail, the adjustment of the angle between the laser diode and the fluorescent material is realized, and the light is irradiated by the laser diode. A temperature-controlled platform for fluorescent materials is placed, and the reflected light inside the integrating sphere is collected by a spectrometer. When the fluorescent material needs to be heated up, the temperature is raised by changing the TEC current, and the surface temperature of the copper plate is collected by the temperature measuring instrument; when the fluorescent material needs to be cooled down, the temperature is lowered by changing the TEC current, and the fan is turned on at the same time to accelerate the cooling process. The meter collects the surface temperature of the copper plate.

Description

technical field [0001] The invention belongs to the technical field of semiconductor laser testing, in particular to a reflective temperature-controllable laser excitation remote fluorescent material testing device. Background technique [0002] Traditional semiconductor white light lighting mainly uses blue LED chips with phosphor powder, but with the continuous increase of blue light power, there have been increasingly serious heat and heat dissipation problems. With the development of laser diode technology in recent years, light-emitting solutions combining blue light lasers and fluorescent conversion materials have emerged one after another. As a new generation technology in the field of third-generation semiconductor lighting, laser diode lighting has unique advantages over LED lighting: long life, higher brightness, smaller size, higher photoelectric conversion efficiency, and longer irradiation distance. The device for laser excitation of remote fluorescent material...

AI Technical Summary

Problems solved by technology

At present, there is no experimental device for such experiments, so it is necessary to design a device that can measure reflected light and test the thermal stability of fluorescent materials.

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