Multi-group laser light source device
A laser light source and laser beam technology, applied in the field of laser projection, can solve the problems of light efficiency attenuation, poor display color performance, etc.
Pending Publication Date: 2018-12-25
艾优优(深圳)技术有限公司 +1
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Problems solved by technology
Monochromatic laser light sources convert polychromatic wavelengths and typically perform poorly in displaying color due to the use of fluorescence to excite different wavelengths
In order to solve this problem, a dual-wavelength laser light source is used to make up for the problem of low color saturation of a single-wavelength excitation multi-wavelength image display. Most of them use two-way wavelength lasers to pass through the filter assembly and then enter the wavelength conversion device, but the light efficiency is limited. attenuation
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[0033] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the associated drawings. Preferred embodiments of the invention are shown in the accompanying drawings. However, the present invention can be embodied in many different forms and is not limited to the embodiments described herein. On the contrary, these embodiments are provided to make the understanding of the disclosure of the present invention more thorough and comprehensive.
[0034] It should be noted that when an element is referred to as being “fixed” to another element, it can be directly on the other element or there can also be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and similar expressions are used herein for purposes ...
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The invention relates to a multi-group laser light source apparatus which is applied as a light source in projection equipment. The device includes a first laser light source which is used for emitting a first laser beam and directly injecting the first laser beam into a first converging lens group, wherein the first laser beam is concentrated on a wavelength conversion device through the first converging lens group, and a second laser light source which is used for emitting a second laser beam having a different wavelength from the first laser beam and directly injecting the second laser beaminto the first converging lens group, wherein the second laser beam is concentrated on the wavelength conversion device through the first converging lens group, and the first laser light source and the second laser light source are arranged side by side. The multi-group laser light source apparatus avoids the loss of optical efficiency caused by the combination of the first laser beam and the second laser beam with a filter module. The two laser light source with different wavelengths do not pass through the filter module, and so the color saturation of a display screen is improved, and an optical machine is smaller in size and is more compact.
Description
technical field [0001] The invention relates to the field of laser projection, in particular to a multi-group laser light source device. Background technique [0002] Laser light source has the characteristics of strong directionality, high brightness, and good coherence. In recent years, it has gradually become the main light source for high-brightness projection and is widely used in the field of large-screen display. [0003] At present, monochromatic laser light sources are usually used to convert multi-color bands, or multi-channel reflective methods are used to convert. Monochromatic laser light sources convert polychromatic wavelengths and typically perform poorly in displaying color due to the use of fluorescence to excite the different wavelengths. In order to solve this problem, a dual-wavelength laser light source is used to make up for the problem of low color saturation of a single-wavelength excitation multi-wavelength image display. Most of them use two-wavel...
Claims
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IPC IPC(8): G03B21/20
CPCG03B21/204G03B21/208
Inventor 刘帅辰文鹏
Owner 艾优优(深圳)技术有限公司