Optical fiber cantilever structure and optical fiber scanning device
An optical fiber and cantilever technology, applied in the field of optical fiber scanning display, can solve the problem of lack of a better technical solution, and achieve the effect of reducing the spot diameter, improving the imaging brightness, and reducing the pixel size
Active Publication Date: 2020-12-29
CHENGDU IDEALSEE TECH
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Problems solved by technology
However, there is currently no better technical solution for how to obtain display quality with both high resolution and high brightness.
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[0039] 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 creative efforts fall within the protection scope of the present invention.
[0040] Such as figure 1 Shown is the principle diagram of fiber optic imaging, which shows the schematic diagram of the optical path of the central field of view. In order to better illustrate the imaging process, figure 1 The optical fiber 10 and the light spot 30 are enlarged schematically (the combination of the two and the projection objective lens 20 is not proportionally enlarged), and the optical fiber 10 in the figure is a schematic cross-sectional view, in...
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The invention discloses an optical fiber cantilever structure. The optical fiber cantilever structure comprises fiber cores and a cladding; and the one or more fiber cores are wrapped with the cladding, one or more microstructure parts are arranged on the front end face of each fiber core, and each microstructure part is used for converging light beams or diverging the light beams so as to enablelight spots or light spot virtual images of the light beams emitted by the microstructure parts are overlapped on the same plane. The invention further discloses an optical fiber scanning device. Eachlight beam emitted by the optical fiber cantilever structure forms the corresponding coincident light spot or light spot virtual image, and the coincident light spots or light spot virtual images arefocused and projected to the same pixel point of a projection surface by a projection lens, thus the diameter of the light spots is reduced, superposition of pixel point brightness is realized, thusthe pixel size after passing through a projection objective lens is reduced, the imaging resolution is increased, and meanwhile the imaging brightness is also improved.
Description
technical field [0001] The invention relates to the technical field of optical fiber scanning display, in particular to an optical fiber cantilever structure and an optical fiber scanning device. Background technique [0002] The imaging principle of optical fiber scanning display technology is that the scanning fiber is driven by an actuator to perform a certain trajectory movement, and each pixel of the image to be displayed is projected to the display area one by one, thereby forming a projection screen. The color of the image displayed by this technology is sharp. Saturation, high contrast, high brightness, and most importantly, the volume of the fiber optic scanning device as a display unit is very small. [0003] The optical fiber scanning display system modulates the light source units of each color in the light source group (which can be lasers / light-emitting diodes, etc.) The color of each pixel, the light beam generated by the beam combiner is introduced into the ...
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IPC IPC(8): G02B26/10G02B6/26
CPCG02B26/103G02B6/262
Inventor 宋海涛其他发明人请求不公开姓名
Owner CHENGDU IDEALSEE TECH