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Wavelength conversion devices and associated lighting devices, fluorescent color wheels and projection devices

A technology of wavelength conversion device and fluorescent color wheel, which is applied to lighting devices, components of lighting devices, lighting and heating equipment, etc., can solve the problems of not being able to satisfy the uniformity and efficiency of light output of the reflective layer at the same time, and achieve high efficiency, stability and uniformity Luminous, high reflectivity effects

Active Publication Date: 2019-07-02
APPOTRONICS CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In view of the defects of the above-mentioned prior art that cannot simultaneously satisfy the uniformity and efficiency of the light output of the reflective layer, the present invention provides a wavelength conversion device capable of maintaining high-efficiency and stable uniform output light in the case of high-power light emission

Method used

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  • Wavelength conversion devices and associated lighting devices, fluorescent color wheels and projection devices
  • Wavelength conversion devices and associated lighting devices, fluorescent color wheels and projection devices
  • Wavelength conversion devices and associated lighting devices, fluorescent color wheels and projection devices

Examples

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Embodiment 1

[0036] Such as figure 1 as shown, figure 1 It is a schematic structural diagram of a wavelength conversion device according to Embodiment 1 of the present invention. The wavelength conversion device includes a light-emitting layer 101, an intermediate layer 102, and a specular reflection layer 103, wherein between the light-emitting layer 101 and the intermediate layer 102, between the intermediate layer 102 and the specular reflection layer 103 close connection between them.

[0037] In the working state, the light emitted by the light-emitting layer 101 passes through the intermediate layer 102, reaches the specular reflection layer 103, is then reflected by the specular reflection layer 103, passes through the intermediate layer 102 and the light-emitting layer 101 in turn, and exits. The heat generated by the light-emitting layer 101 is conducted to the specular reflection layer 103 through the middle layer 102 , and dissipated from the middle layer 102 and the reflection...

Embodiment 2

[0051] See image 3 , image 3 It is a structural schematic diagram of the fluorescent color wheel of the second embodiment of the present invention. Compared with Embodiment 1, the fluorescent color wheel of this embodiment has an additional driving device 305, which is used to drive the wavelength conversion device to rotate.

[0052] Compared with the fixed wavelength conversion device without the driving device 305 , the fluorescent color wheel in this embodiment uses rotation to dissipate heat faster, so that it can work under higher optical power.

[0053] Figure 4 It is a structural schematic diagram of a modified embodiment of the second embodiment. Compared with the second embodiment, the middle layer 402 is fixedly connected with the driving device 405, the driving device 405 drives the middle layer 402 to rotate, and the middle layer 402 drives the light emitting layer 401 and the specular reflection layer 403 to rotate. Since the middle layer 402 has a dense l...

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Abstract

The invention provides a wavelength conversion equipment, and a correlated illuminating device, a fluorescent color wheel and a projection apparatus. The wavelength conversion equipment comprises a light emitting layer, an intermediate layer, and a specular reflection layer, wherein the layers are laminated successively; the light emitting layer includes a wavelength conversion material and an adhesive; the intermediate layer is a light-transmitting diffusion reflection layer; and the intermediate layer is a compact layer and is used for supporting the light emitting layer. High-reflectivity reflection of light emitted by the light emitting layer can be realized under the joint effect of diffuse reflection of the intermediate layer and specular reflection of the specular reflection layer; and uniformity of the light divergence angle distribution is improved. Meanwhile, heat generated by the light emitting layer can be spread and dissipated uniformly at the compact intermediate layer, so that the wavelength conversion equipment can keep high-efficiency, stable and uniform light emission on the condition of high-power light emission.

Description

technical field [0001] The invention relates to the field of light-emitting devices, in particular to a wavelength conversion device, a related lighting device, a fluorescent color wheel and a projection device. Background technique [0002] With the development of display and lighting technology, the original halogen bulb as a light source is increasingly unable to meet the high power and high brightness requirements of display and lighting. Visible light of various colors can be obtained by using excitation light emitted by a solid-state light source such as an LD (Laser Diode, laser diode) to excite wavelength conversion materials, and this technology is increasingly used in lighting and display. This technology has the advantages of high efficiency, low energy consumption, low cost, and long life, and is an ideal alternative to existing white or monochromatic light sources. [0003] Due to the high efficiency of the reflective wavelength conversion device, it is widely ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B5/20F21V9/32F21V14/00G03B21/20F21V9/40
Inventor 胡飞杨佳翼
Owner APPOTRONICS CORP LTD
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