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Wavelength conversion device with a cooling structure baseplate and light emitting device

A technology of wavelength conversion device and cooling structure, which is applied to cooling/heating devices of lighting devices, lighting devices, projection devices, etc., can solve the problems of reduced efficiency of wavelength conversion materials and affecting the reliability of wavelength conversion materials, and achieves simple structure, Enhances air convection and ensures efficiency

Inactive Publication Date: 2015-05-13
YANGZHOU G-NOVA OPTOELECTRONIC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] As people's requirements for brightness continue to increase, the optical power of the excitation light is also getting higher and higher, so the heat emitted by the wavelength conversion device is also increasing, and the temperature of the wavelength conversion material is getting higher and higher, which directly leads to wavelength The decline in the efficiency of the conversion material even affects the reliability of the long-term use of the wavelength conversion material

Method used

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  • Wavelength conversion device with a cooling structure baseplate and light emitting device
  • Wavelength conversion device with a cooling structure baseplate and light emitting device
  • Wavelength conversion device with a cooling structure baseplate and light emitting device

Examples

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Effect test

Embodiment 1

[0016] figure 1 , 2 , 3 shows Embodiment 1 of the present invention. The components of the light-emitting device include (1) an aluminum reflective substrate 201 with a thickness of 0.7mm and a silver-plated high-reflection film on the front, (2) an airflow disturbance structure 301 made of fan blade-shaped materials with a thickness of 0.5mm, (3) The driving device 210, (4) The wavelength conversion material sheet 101 composed of red, yellow and green phosphors mixed with silica gel.

[0017] The material in the shape of the fan blade in the example is connected to the back of the reflective aluminum substrate by means of pasting / welding. The material in the shape of the fan blade can be metal or plastic, etc., and is made by stamping or other processing techniques. The front side of the aluminum reflective substrate is silver-plated with a metal high-reflection film layer.

[0018] When the driving device drives the light-emitting device to rotate at high speed, the wavel...

Embodiment 2

[0020] Figure 4 , 5 Shown is Example 2 of the present invention. The components of the light-emitting device include (1) an aluminum reflective substrate 202 with a thickness of 1.2mm and a silver-coated high-reflection film layer on one side. ) a driving device 210, (4) a wavelength conversion material sheet 102 formed by mixing yellow and green phosphors and silica gel.

[0021] The aluminum reflective substrate in the example has a total thickness of 1.2mm. A fan blade-shaped airflow disturbance structure is formed on the back of the aluminum reflective substrate by machining and other methods. The thickness of the plane part of the aluminum reflective substrate is 0.7mm. The thickness of the part is 0.5mm, and the front of the reflective substrate of the aluminum sheet is coated with an aluminum metal high-reflection film layer.

[0022] When the driving device drives the light-emitting device to rotate at a high speed, the wavelength conversion material layer coated o...

Embodiment 3

[0024] Figure 6 , 7 Shown is Example 3 of the present invention. The components of the light emitting device include (1) a reflective substrate 203 made of ceramic material with a thickness of 1mm, (2) a copper heat dissipation substrate 401 with a total thickness of 1mm, the plane part of the heat dissipation substrate is 0.5mm, and the thickness of the fan blade shape part is 0.5mm , (3) A wavelength conversion material sheet 103 made of yellow and green phosphors mixed with an inorganic bonding material, (4) A driving device 210 .

[0025] The copper heat dissipation substrate is directly formed into an airflow disturbance structure with a 0.5mm thick plane part and a 0.5mm thick fan blade shape by machining, and the ceramic reflective substrate and the copper heat dissipation substrate are bonded by organic / inorganic glue Or fixed by welding.

[0026] When the driving device drives the light-emitting device to rotate at high speed, the wavelength conversion material sh...

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Abstract

The invention relates to a wavelength conversion device with a cooling structure baseplate. The wavelength conversion device comprises the baseplate, and a fluorescence pink wheel sheet layer and an airflow disturbance structure which are arranged on the same side of the baseplate or on the different sides of the baseplate. By using the airflow disturbance structure, a driving device drives a light emitting device to rotate at high speed, and cross-ventilation above the surface of the baseplate is greatly improved, so that the heat dissipation capacity of the baseplate is enhanced; a heat dissipation baseplate is provided, and a double-layer heat dissipation mode is realized by heat conduction and air convection, so that the heat dissipation capacity is further improved, and the efficiency of a wavelength conversion material is ensured; and the airflow disturbance structure is in a fan blade mode, the shape and the processing mode of the airflow disturbance structure can be flexibly selected according to specific conditions, the structure is simple and the heat dissipation capacity is excellent.

Description

technical field [0001] The invention relates to the technical field of light sources for illumination and display, in particular to a wavelength conversion device and a light emitting device with a cooling structure substrate. Background technique [0002] Now, more and more projectors choose to mainly use LED (light Emitting Diode) or LD (Laser Diode) as the display light source. One of the modes is to directly use the multi-color excitation light source to emit light of different wavelengths such as red, green or blue. As a light source to achieve color display; the other is to use a red or green or blue as a light source, and then use it to excite and convert the other two primary colors, and finally realize color projection display by modulating the optical path. A method of producing high-brightness time-sequence color light is to collect and focus the excitation light source on a phosphor powder turntable to excite the phosphor material to emit light, and generate a pe...

Claims

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Application Information

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IPC IPC(8): G03B21/20G03B21/16F21V29/67
CPCG03B21/204G03B21/16
Inventor 周际新钱向林杨生强周恒荣
Owner YANGZHOU G-NOVA OPTOELECTRONIC CO LTD
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