Lighting device and display system
A technology of lighting device and linkage device, applied in the field of optics, can solve the problems of excessive spot size, poor lighting or display effect, etc., and achieve the effect of stable optical path shape and improved light utilization rate
Pending Publication Date: 2018-02-13
APPOTRONICS CORP LTD
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Problems solved by technology
[0004] However, the wavelength conversion device 103 emits Lambertian light with the light spot as the center, and the change of the light spot size will cause the light to change in the subsequent optical path, which may cause the size of the light spot in the subsequent optical path to exceed the area of the optical element, resulting in lighting or display not effectively
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[0048] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention. In the case of no conflict, the following embodiments and features in the embodiments can be combined with each other.
[0049] It should be noted that, in the present invention, when a component is considered to be "connected" to another component, it may be directly connected to another component, or may be indirectly connected to another component through an intermediate component.
[0050] Unless otherwise defined, all technical and scientific terms used her...
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The invention relates to a lighting device. The lighting device comprises an excitation light source, a lens assembly, a wavelength conversion device, a linkage device and a rear-end optical element;the lens assembly at least comprises a first lens and a second lens which are movably arranged on the light path, a first light spot is formed by the section of the light beam incident to the first lens, a second light spot is formed on the wavelength conversion device by the light beam incident to the wavelength conversion device, and a third light spot is formed on the surface of the rear-end optical element by light incident to the rear-end optical element; the first lens and the second lens are connected through the linkage device. When the position of the first lens relative to the wavelength conversion device, the position of the second lens relative to the wavelength conversion device is adjusted by the linkage device, and then the third light spot formed by the light beam incidentto the rear-end optical element is completely located on the incident face of the rear-end optical element. The invention further provides a display system with the lighting device.
Description
technical field [0001] The invention relates to the field of optical technology, in particular to an illuminating device and the display system. Background technique [0002] In the prior art, there is a technical solution of using a lens to change the size of the light spot incident on the fluorescent layer, thereby changing the excitation light density at each position on the fluorescent layer, thereby changing the color coordinates of the outgoing light. [0003] Such as Figure 5 As shown, the lighting device 100 includes an excitation light source 101, a lens 102 and a wavelength conversion device 103, and the wavelength conversion device 103 carries a fluorescent material. The light emitted by the excitation light source 101 is incident on the wavelength conversion device 103 through the lens 102 . When the lens 102 is at the position A, the light spot of the excitation light on the wavelength conversion device 103 is smaller and the optical density is higher. When t...
Claims
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Patent Timeline
Login to View More IPC IPC(8): G03B21/20G02B7/02
CPCG02B7/023G03B21/204G03B21/206G03B21/208G02B7/02G03B21/20
Inventor 米麟李屹
Owner APPOTRONICS CORP LTD