Method for improving resolution of projection picture by multi-disc DMD common imaging

A resolution and imaging technology, applied in the field of 3D printing, can solve the problems of increasing the number of lenses, limiting the quality of image projection, and not being able to meet the high-resolution delicate surface, etc., to achieve the effect of large imaging area

Inactive Publication Date: 2017-06-13
深圳晗竣雅科技有限公司
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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 multi-disc DMD common imaging

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Embodiment Construction

[0015] 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.

[0016] The method for improving the resolution of the projected picture by the common imaging of the plurality of DMDs comprises the following steps:

[0017] 1) Divide the image information into two symmetrical parts;

[0018] 2) A light source, a lens group and a DMD are arranged symmetrically on both sides of the projection lens, and the two parts of image information are emitted through the ultraviolet rays emitted by the light sources on both sides, converted by the lens groups on both sides, and projected onto the DMDs on both sides;

[0019] 3) After the two parts of image information are reflected by the DMD, they respectively reach the two sides of the prism arranged vertically to the projection lens;

[0...

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Abstract

The invention relates to a method for raising the resolution of projected pictures through common imaging of multiple DMDs. The ultraviolet light source, the lens group and the DMD are placed symmetrically in pairs with respect to the projected lens, the reflective prism is placed vertically with the projected lens, and the projected picture information is divided into two parts. The information is collected separately by two DMDs, and the beams are reflected and spliced ​​completely at the prism, and then projected and imaged uniformly, so that a larger imaging area can be obtained in the case of a higher resolution.

Description

technical field [0001] The invention relates to the field of 3D printing, in particular to a method for joint imaging of multiple DMDs to improve the resolution of projected pictures. 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, and the exist...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03B21/14
CPCG03B21/142
Inventor 林佳裕王芳
Owner 深圳晗竣雅科技有限公司
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