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Illumination method and light source of large-size photocuring 3D printer

A 3D printer and photo-curing technology, which is applied to 3D object support structures, metal processing equipment, manufacturing tools, etc., can solve the problems of not being able to obtain better uniformity at the same time, and solve problems such as insufficient beam alignment, insufficient energy, and Effects that improve lighting quality

Pending Publication Date: 2021-08-10
SHENZHEN ELEGOO TECH CO LTD
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Problems solved by technology

[0003] The present invention provides a lighting method and light source for a large-scale light-curing 3D printer, aiming to solve the problem that the existing 3D printing technology cannot simultaneously obtain better uniformity and collimation in the face of large-size light-curing 3D printing work. and the energy required for curing

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  • Illumination method and light source of large-size photocuring 3D printer

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Embodiment Construction

[0022] 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 some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0023] It should also be understood that the terminology used in the description of the present invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the present invention. As used in this specification and the appended claims, the singular forms "a", "an" and "the" are intended to include plural referents unless the context clearly dictates otherwise.

[0024] It should be further understood ...

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Abstract

The invention discloses an illumination method and a light source of a large-size photocuring 3D printer. The light source, a collimating lens, a focusing lens, a homogenizing sheet, a spatial filter, a free-form surface lens, a Fresnel collimating lens and an illumination surface are sequentially laminated, and the light source comprises lamp beads arranged in an array, so that equipment can improve the total power of the light source, illumination of a large-target-surface LCD screen is achieved, and meanwhile the quality of light beams is improved. A secondary processing scheme of the light beams is adopted, namely, the collimated light beams are gathered, homogenized and spatially filtered, the light beams subjected to secondary processing form a new expanded light source at the spatial filtering position, the light source has good light intensity distribution, light field homogenization and light spot shape control of the light beams can be conveniently carried out by the free-form surface lens, and finally, the light beams are collimated through the Fresnel collimating lens, and the collimation degree of the light beams can be controlled within 5 degrees.

Description

technical field [0001] The invention relates to the field of lighting equipment for large-size photo-curing 3D printers, in particular to a lighting method and light source for large-size photo-curing 3D printers. Background technique [0002] 3D printers use ultraviolet light to irradiate photosensitive resin to cure and shape. Photosensitive resin is sensitive to the intensity of ultraviolet light during the molding process, so it is extremely important to obtain a uniform and highly collimated ultraviolet beam. In large-scale photocuring 3D printing, it is necessary to obtain a large-scale irradiation area to obtain large-scale 3D printing operations, such as printing large-scale equipment such as large-scale objects such as construction and construction machinery parts. How to obtain better uniformity, collimation and energy required for curing while 3D printing large-scale objects is one of the difficulties faced in large-scale photocuring 3D printing. At present, mos...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C64/264B33Y30/00
CPCB33Y30/00B29C64/264
Inventor 洪英盛张胜哲
Owner SHENZHEN ELEGOO TECH CO LTD
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