Light source device

A light source device and excitation light source technology, applied in the field of optics, can solve the problems such as the difficulty of dissipating the heat in the center of the spot, the lack of scalability of the brightness, and the diminishing returns of heat dissipation.

Active Publication Date: 2020-04-14
APPOTRONICS CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In addition, the improvement of heat dissipation effect brought about by expanding the spot area is non-linear, and the heat in the center of the spot is more and more difficult to dissipate, which leads to diminishing returns of heat dissipation. The brightness improvement of this technical solution is not scalable.

Method used

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Examples

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Embodiment 3

[0064] In the third embodiment, the light source device 30 includes an excitation light source 310, a rotating drum 320, a driving device 330 and a light collecting device 340. The excitation light source 310 can refer to the description of the excitation light source 110, 210 or 210' in the foregoing embodiments, the driving device 330 can refer to the description of the driving device 130, and the light collection device 340 can refer to the light collection device in the foregoing embodiments. The description is not repeated here.

[0065] In this embodiment, the rotating drum 320 includes a cylindrical base 322 and a plurality of wavelength conversion units 321 arranged on the side of the rotating drum 320 and distributed along the circumferential direction. The wavelength conversion unit 321 includes a first surface 3211 and a second surface 3212 disposed oppositely, including a first end surface 3213 and a second end surface 3214 disposed oppositely, and two side surfaces c...

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Abstract

The invention provides a light source device, which comprises an excitation light source used for emitting excitation light; a rotating cylinder comprises a plurality of wavelength conversion units which are arranged on the side face of the rotating cylinder and distributed in the circumferential direction, wherein the wavelength conversion unit comprises a wavelength conversion material and is used for absorbing exciting light and emitting excited light; and a driving device used for driving the rotating cylinder to rotate around the center axis of the rotating cylinder. The exciting light enters the wavelength conversion unit along the radial direction of the rotating cylinder, and the excited light exits from the wavelength conversion unit along the axial direction of the rotating cylinder. The wavelength conversion units are arranged on the peripheral side of the rotating cylinder, the exciting light is enabled to enter the wavelength conversion unit along the radial direction of the rotating cylinder, and the excited light exits from the wavelength conversion unit along the axial direction of the rotating cylinder, an incident light spot of the exciting light is completely separated from an emergent light spot of the stimulated light, so that the area of the incident light spot can be randomly enlarged under the condition that the size of the emergent light spot is not changed, and high brightness and a compact structure of the light source device are realized.

Description

Technical field [0001] The present invention relates to the field of optical technology, in particular to a light source device. Background technique [0002] The existing illumination light sources are mainly LED, xenon lamp and halogen light sources. These types of light sources have disadvantages such as insufficient brightness, insufficient service life, and large beam divergence angle resulting in insufficient illumination distance. As an emerging lighting technology, laser lighting has become the development trend of future lighting due to its high brightness, long service life, and small laser beam collimation and divergence angle. [0003] In order to obtain white light that can be used for illumination and display, it is necessary to use red, green and blue lasers or to excite wavelength conversion materials (such as phosphors) by lasers. Among them, the white light obtained by the red, green and blue lasers has a large color gamut, high brightness and high cost, and is s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03B21/20G03B21/16
CPCG03B21/204G03B21/2066G03B21/2033G03B21/208G03B21/16G03B21/20G02B26/00G02F1/01
Inventor 余新张贤鹏常静李屹
Owner APPOTRONICS CORP LTD
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