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Method for improving resolution of projection picture by multiple times of imaging through reflection mirror swinging

A technology of multiple imaging and mirrors, applied in optics, instruments, projection devices, etc., can solve the problems of increasing the number of lenses, limiting the quality of image projection, and not being able to meet high-resolution delicate surfaces, etc., to achieve the effect of large imaging area

Inactive Publication Date: 2017-11-10
深圳晗竣雅科技有限公司
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  • Abstract
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AI Technical Summary

Problems solved by technology

[0003] In order to improve the quality of projected pictures, it is required that the number of micromirrors on the DMD chip should be as many as possible, but no matter from the perspective of cost or technical conditions, the number of mirrors cannot be increased without limit, thus limiting the projection quality of pictures
In the 3D printing industry, the quality requirements for projected images are even stricter, and the existing DMD production technology cannot meet the printing requirements of high-resolution delicate surfaces and realistic details.

Method used

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  • Method for improving resolution of projection picture by multiple times of imaging through reflection mirror swinging

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Embodiment Construction

[0016] The principles and features of the present invention are described below in conjunction with the accompanying drawings, and the examples given are only used to explain the present invention, and are not intended to limit the scope of the present invention.

[0017] combined with figure 1 It can be seen that the device includes a light source, lens group, DMD, lens, mirror and imaging position panel; ultraviolet light is emitted from the light source, converted by the lens group, and projected onto the DMD with better collimation. Tens of thousands of micromirrors, according to the picture information on it, selectively project light energy into the lens, the lens forms an image of the light beam carrying the picture information, and places the image surface on the imaging panel through the mirror; in order to improve the resolution of the projected picture When the picture information is input to the DMD, half of the picture information just covers all the micromirrors ...

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Abstract

The invention relates to a method for improving resolution of a projection picture by multiple times of imaging through reflection mirror swinging. When picture information is input to DMD, half of the picture information just covers all micro-mirrors of the DMD, the DMD projects a light beam which carries half of the picture information into a lens, and then the lens performs imaging and shots in the first imaging position through reflection of the reflection mirror; next, the other half of the picture information is input to the DMD, and the light beam performs imaging through the same path; only through strict mathematical calculation, the reflection mirror rotates for a proper angle, and the projection picture in the second time is formed in the second position; and the two imaged pictures are seamlessly spliced in the first position and the second position. Therefore, relatively high resolution is obtained while a relatively large imaging area is obtained.

Description

technical field [0001] The invention relates to the field of imaging devices, in particular to a method for improving the resolution of projected pictures by swinging a mirror for multiple imaging. Background technique [0002] In DLP projection technology, its core component is a chip called DMD. The top of the DMD chip is composed of millions of lenses with an area of ​​micron. Increasing the number of lenses in the DMD can improve the resolution of the product. The higher the resolution of the product, the better the quality of the projected picture. [0003] In order to improve the quality of projected pictures, it is required that the number of micromirrors on the DMD chip be as many as possible, but no matter from the perspective of cost or technical conditions, the number of mirrors cannot be increased without limit, thus limiting the projection quality of pictures . In the 3D printing industry, the requirements for the quality of projected images are even stricter,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03B21/28
CPCG03B21/28
Inventor 周伟王芳林佳裕
Owner 深圳晗竣雅科技有限公司
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