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Laser illumination system based on perovskite quantum dot fluorescent powder

A technology of laser lighting and quantum dots, applied in the field of lighting systems, can solve the problems of short lighting length and low color rendering index of light source lighting, and achieve the effect of long lighting length, high color rendering index and wide color range

Pending Publication Date: 2021-07-27
INST OF SEMICONDUCTORS - CHINESE ACAD OF SCI
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Problems solved by technology

[0005] In view of this, the present invention combines the advantages of laser light sources and perovskite quantum dot phosphors to provide a laser lighting system based on perovskite quantum dot phosphors to solve the problem of color rendering of light source lighting in the prior art. Technical issues of low index and short lighting length, thus achieving high-quality output of directional light sources

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  • Laser illumination system based on perovskite quantum dot fluorescent powder

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Embodiment Construction

[0020] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings.

[0021] As a directional light source, the laser has very good advantages. It is an ideal high-energy-density injection light source. It can increase the optical output power by increasing the input current, thereby effectively avoiding the low-voltage effect under high current density. After reaching high power, it will not There will be an effect of energy reduction; in addition, according to the half-peak width of the laser light source, it can be precisely matched with the excitation wavelength of the fluorescent material to achieve high energy conversion efficiency. There is a better degree of freedom in design.

[0022] Compared with traditional phosphors or fluorescent ceramics, perovskite quantum dot phosphors have...

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Abstract

The invention provides a laser illumination system based on perovskite quantum dot fluorescent powder, and the system comprises a temperature control substrate which is internally provided with a plurality of electrodes; at least one laser which is mounted on the temperature control substrate and is electrically connected with the temperature control substrate through an electrode; and a perovskite quantum dot fluorescent light-emitting panel which is arranged at the upper part of the at least one laser, wherein a preset interval is formed between the perovskite quantum dot fluorescent light-emitting panel and the at least one laser so as to adjust the light beam direction of the at least one laser and wherein the perovskite quantum dot fluorescent light-emitting panel comprises perovskite quantum dot fluorescent powder.

Description

technical field [0001] The invention belongs to the technical field of lighting systems, and in particular relates to a laser lighting system based on perovskite quantum dot fluorescent powder. Background technique [0002] LED light sources are widely used in applications such as traffic lights, automobile lights, tunnel lights, etc. However, in the application of LED light sources in lamps, practical problems will still affect the performance of LED light sources. [0003] Most of the white light LEDs in the prior art are realized in two ways: one is that the mixed light of LEDs of various colors is called white light; the other is that blue light or ultraviolet light is used to excite traditional phosphors to emit white light. In particular, the method of exciting traditional phosphors makes the blue light content in the LED high, which makes the color temperature of the entire LED high, while other spectral content is small, making the color rendering index of the LED lo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F21K9/238F21K9/64F21Y115/30
CPCF21K9/238F21K9/64F21Y2115/30
Inventor 孙雪娇魏学成王军喜张宁
Owner INST OF SEMICONDUCTORS - CHINESE ACAD OF SCI
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