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3D light curing method and 3D light curing equipment

A light-curing and light-curing resin technology, applied in the field of 3D printing, can solve the problem of low light-curing precision

Active Publication Date: 2019-10-25
GUANGZHOU INST OF BIOMEDICINE & HEALTH CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Due to the limitation of the clear aperture of the projection device and the divergence angle of the exposure beam, the resolution of the exposure pattern is about 300 μm, so the accuracy of photocuring is relatively low

Method used

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  • 3D light curing method and 3D light curing equipment

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Embodiment Construction

[0015] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, but not to limit the present invention. In addition, it should be noted that, for the convenience of description, only some structures related to the present invention are shown in the drawings but not all structures.

[0016] figure 1 A schematic flow chart of a 3D photocuring method provided in an embodiment of the present invention, specifically including the following steps:

[0017] Step 110, modulating the light source to form an exposure beam;

[0018] Step 120 , controlling the exposure beam to scan along the first direction on the exposure surface of the photocurable resin through a projection system to form an exposure pattern.

[0019] Wherein, the light aperture size D1 of the projection system along the second dire...

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Abstract

The invention discloses a 3D light curing method and 3D light curing equipment. The method comprises the steps that a light source is modulated to form exposure beams; the exposure beams are controlled to scan in a first direction on an exposure surface of light-cured resin through a projection system, and an exposure pattern is formed, wherein the clear aperture D1 of the projection system in a second direction is greater than the clear aperture D2 of the projection system in a third direction; the first direction is perpendicular to the second direction; a plane defined by the first direction and the second direction is parallel to the exposure surface of the light-cured resin; and the third direction is perpendicular to the exposed surface of the light-cured resin. According to the embodiments of the invention, the imaging resolution is increased, and thus the light curing accuracy is improved.

Description

technical field [0001] Embodiments of the present invention relate to 3D printing technology, and in particular to a 3D photocuring method and 3D photocuring equipment. Background technique [0002] 3D printing technology is the use of metal materials, non-metal materials and medical biological materials to accumulate layer by layer according to extrusion, sintering, melting, light curing, spraying, etc., to manufacture physical objects and realize the manufacture of complex structural parts. [0003] The current 3D photocuring method performs image projection through the reverse process of CT imaging, rotates the photocurable resin, and utilizes the critical exposure threshold of the photocurable resin to obtain the required physical objects. Specifically, according to the 3D image of the object, the cross-sectional shape of the image at different angles is calculated, and the projection device is used to project the corresponding 2D image at different angles, and the proje...

Claims

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Application Information

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IPC IPC(8): B29C64/135B29C64/264B33Y10/00B33Y40/00
CPCB33Y10/00B33Y40/00B29C64/135B29C64/264
Inventor 张骁骆建忠樊科
Owner GUANGZHOU INST OF BIOMEDICINE & HEALTH CHINESE ACAD OF SCI
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