Light source device, method for controlling light source device, and projector
A light source device and a technology for exciting a light source, applied in the field of laser projectors, can solve the problems of reduced fluorescence excitation efficiency, low fluorescence excitation efficiency of a fluorescence wheel, etc., and achieve the effect of improving fluorescence excitation efficiency
Pending Publication Date: 2021-03-30
QINGDAO HISENSE LASER DISPLAY CO LTD
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Problems solved by technology
[0004] In order to increase the intensity of the light provided by the light source device, the power of the excitation light source is usually higher, but the power density of the light (the power density is the quotient of the output light power of the excitation light source and the area of the light spot on the fluorescent wheel) is increased to a certain extent After that, the excitation efficiency of fluorescence will decrease rapidly, which will lead to low fluorescence excitation efficiency of the fluorescent wheel.
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[0050] In order to make the purpose, technical solution and advantages of the present application clearer, the implementation manners of the present application will be further described in detail below in conjunction with the accompanying drawings.
[0051] figure 1 is a schematic diagram of an implementation environment involved in the embodiment of the present application, and the implementation environment may include a projector 10 and a projection screen 20 .
[0052] The projector 10 may include a light source device 11 and an optomechanical lighting device 12 . The light source device 11 is used to provide a light source to the optical-mechanical lighting device 12 , and the optical-mechanical lighting device 12 is used to project a preset pattern onto the projection screen 20 according to the light source provided by the light source device 11 .
[0053]The projection screen 20 is used to carry the pattern projected by the optomechanical lighting device 12 . The pro...
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The invention discloses a light source device, a control method of the light source device and a projector, and belongs to the technical field of projection. The light source device comprises a fluorescent wheel and two excitation light sources; the fluorescent wheel comprises two fluorescence excitation areas, and the two fluorescence excitation areas are respectively positioned in two annular areas with different radiuses on the fluorescent wheel; excitation light emitted by the two excitation light sources irradiates one of the two fluorescence excitation areas and the other fluorescence excitation area respectively and excites the corresponding fluorescence areas to emit corresponding excitation light. The power density of the excitation light source irradiating the fluorescence excitation area can be low, the temperature of the excitation light emitted by the excitation light source in the irradiation area of the fluorescence excitation area is low, the fluorescence excitation efficiency is higher, and the problem that the fluorescence excitation efficiency is low in the prior art is solved. And the effect of improving the fluorescence excitation efficiency is achieved.
Description
technical field [0001] The present application relates to the field of projection technology, in particular to a light source device, a control method of the light source device, and a laser projector. Background technique [0002] Currently, a projector may include a light source device and an optomechanical lighting device. The light source device is used to provide light of various colors to the optomechanical lighting device, and the optomechanical lighting device is used to output the light of various colors. [0003] A light source device includes an excitation light source and an optical path assembly. The excitation light source is used to output blue light. The optical path assembly includes a fluorescent wheel. And the blue light can be output to the optomechanical lighting device. [0004] In order to increase the intensity of the light provided by the light source device, the power of the excitation light source is usually higher, but the power density of the li...
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IPC IPC(8): G03B21/20G03B21/16
CPCG03B21/204G03B21/2013G03B21/16
Inventor 王强刘显荣田有良
Owner QINGDAO HISENSE LASER DISPLAY CO LTD