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Wavelength conversion device

A wavelength conversion device and wavelength conversion module technology, applied in lighting devices, projection devices, components of lighting devices, etc., can solve the problems affecting the stability and service life of the device, poor heat dissipation performance of the wavelength conversion device, etc. The effect of increasing the laser irradiation time, improving the heat dissipation performance, and improving the luminous efficiency

Pending Publication Date: 2019-08-13
APPOTRONICS CORP LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, as the brightness continues to increase, it is bound to increase the power of the light source
In the case of using a high-power laser light source, figure 1 The wavelength conversion device with fluorescent color wheel mechanism shown in , has poor heat dissipation performance, which affects the stability and service life of the device

Method used

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Examples

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no. 1 example

[0042] figure 2 A side view of the wavelength conversion device according to the first embodiment of the present invention is shown. image 3 A top view of the wavelength conversion device according to the first embodiment of the present invention is shown.

[0043] Such as figure 2 and image 3 As shown, the wavelength conversion device according to this embodiment includes a heat dissipation substrate 10 , a driving motor 20 and a wavelength conversion module 30 . The heat dissipation substrate 10 is, for example, an aluminum nitride substrate. The driving motor 20 is arranged at the center of the non-light-receiving surface (also referred to as “back”) of the heat dissipation substrate 10 , and the wavelength conversion module 30 is arranged on the light-receiving surface (also referred to as “front”) of the heat dissipation substrate 10 . The heat dissipation substrate 10 is in the shape of a disc as a whole, and has a centrally symmetrical stepped structure in which...

no. 2 example

[0047] Figure 5 A side view of a wavelength conversion device according to a second embodiment of the present invention is shown. The wavelength conversion device according to the present embodiment includes a heat dissipation substrate 11 , a drive motor 20 and a wavelength conversion module 30 . For the convenience of illustration, Figure 5 Only two wavelength conversion modules 30 are shown in . According to the wavelength conversion device of this embodiment and figure 2 The difference of the wavelength conversion device of the first embodiment shown is that: the heat dissipation substrate 11 has a centrally symmetrical stepped structure in which the light-receiving surface (front) gradually protrudes from outside to inside and the non-light-receiving surface (back) gradually recesses from outside to inside.

[0048] Since the wavelength conversion device needs to be provided with a drive motor for driving rotation, and the drive motor is usually provided on the back...

no. 3 example

[0052] Figure 7 A side view of a wavelength conversion device according to a third embodiment of the present invention is shown. The wavelength conversion device according to the present embodiment includes a heat dissipation substrate 12 , a drive motor 20 and a wavelength conversion module 30 . For the convenience of illustration, Figure 7 Only four wavelength conversion modules 30 are shown in . Such as Figure 7 As shown, according to the wavelength conversion device of this embodiment and Figure 6 The difference of the wavelength conversion device of the second embodiment shown is that: the heat dissipation substrate 12 has a light-receiving surface (front) gradually concave and then gradually convex from outside to inside, and a non-light-receiving surface (back) is gradually convex and then gradually convex from outside to inside. Concave centrosymmetric ladder structure. In other words, the heat dissipation substrate 12 in this embodiment has a W-shaped cross s...

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Abstract

The invention discloses a wavelength conversion device. The device comprises a heat dissipation substrate which is in a disc shape, and at least one wavelength conversion module which is positioned onthe light receiving surface of the heat dissipation substrate. The heat dissipation substrate is provided with a centrosymmetric step structure, and the at least one wavelength conversion module is arranged on the corresponding step surface of the step structure in a circular ring shape. According to the invention, the heat dissipation performance, stability and service life of the wavelength conversion device can be improved.

Description

technical field [0001] The present invention relates to the field of image display, and more specifically, to a wavelength conversion device. Background technique [0002] In recent years, with the continuous development of science and technology, people have higher and higher requirements for image display devices. Laser light source has become one of the most promising technical research directions. In the technical field of laser light sources, wavelength conversion devices with fluorescent color wheel mechanisms are generally used. Among them, the fluorescent color wheel rotates around the central axis under the drive of the motor, and the laser as the excitation light converges and irradiates the phosphor material layer set on the surface of the fluorescent color wheel by coating or other means, so that the phosphor material is excited and emits the required Fluorescent color. [0003] figure 1 A schematic structural diagram of a wavelength conversion device with a ...

Claims

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Application Information

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IPC IPC(8): G03B21/20G03B21/16
CPCG03B21/16G03B21/204F21V14/08G02B5/20G02B26/00G03B21/00G03B21/14G03B21/20
Inventor 徐虎段银祥周萌田梓峰许颜正
Owner APPOTRONICS CORP LTD
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