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Optical projection system for realizing large-size photocuring 3D printing

A 3D printing and optical projection technology, applied in optics, optical components, instruments, etc., can solve the problems of reducing printing accuracy, high price, and limiting the application of DLP and LCD projection technology, and achieve the effect of increased printing size and high-precision cost

Active Publication Date: 2017-02-01
深圳市鹏安视科技有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, high-pixel DLP and LCD, especially DLP, are expensive, which limits the application of DLP and LCD projection technology in large-scale 3D printing, or can only reduce printing accuracy to achieve larger-scale 3D printing

Method used

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  • Optical projection system for realizing large-size photocuring 3D printing
  • Optical projection system for realizing large-size photocuring 3D printing

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Embodiment Construction

[0023] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0024] Such as figure 1 As shown, the embodiment of the present invention is composed of a first LCD lighting module 1 , a second LCD lighting module 2 , a polarizing beam splitter 3 , a projection lens 4 and a resin tank 5 . The optical structures of the first LCD lighting module 1 and the second LCD lighting module 2 are completely the same.

[0025] The specific lighting implementation of the system, taking the first LCD lighting module 1 as an example, includes an LED light source 101, a condenser lens 102, a diaphragm 103, a collimating lens 104, a first polarizer 105, an LCD liquid crystal plate 106, and a second polarizer 107 ,Such as figure 2 shown.

[0026] Firstly, after the LED light source 101 passes through the lighting module composed of the condenser lens 102, the aperture 103, and the collimating lens 104, the incident light...

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Abstract

The invention provides an optical projection system for realizing large-size photocuring 3D printing. The optical projection system comprises a first LCD illumination module (1), a second LCD illumination module (2), a polarizing beam splitter (3), a projection lens and a resin groove (5). The first LCD illumination module (1) and the second LCD illumination module (2) have the identical structure, the polarizing directions of the lights of the two illumination modules are mutually vertical after the lights are emitted through the polarizing beam splitter (3), and the LCDs are imaged onto the resin groove (5) through the projection lens (4) to carry out photocuring 3D printing. Because the two LCDs are mutually staggered in a space, seamless connection of the image surfaces of the two LCDs can be realized through adjusting the relative positions of the two LCDs, thus a printing size is doubled.

Description

technical field [0001] The invention relates to a light-curing 3D printing device, in particular to an optical imaging system in the light-curing 3D printing device. Background technique [0002] A mainstream branch of 3D printing technology is photocuring 3D printing technology, which uses the principle of photopolymerization and then curing after irradiating liquid photosensitive resin with ultraviolet light beams, so that materials can be accumulated point by point or layer by layer. Stereo-curing 3D printing technology is mainly divided into SLA and DLP or LCD projection technology. Among them, SLA is called stereolithography technology, which uses a laser beam to quickly scan and irradiate the photosensitive resin point by point to make it solidified. SLA technology is also mainly used for molding photosensitive resin materials, which has the characteristics of wide application. DLP and LCD projection technology project the entire layer of images onto the photosensiti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C64/20G02B27/26B33Y30/00G02B30/25
CPCB33Y30/00G02B30/25
Inventor 陈旺富周绍林马旭刚
Owner 深圳市鹏安视科技有限公司
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