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Multi-resolution femtosecond laser 3D printing device and printing method

A femtosecond laser, 3D printing technology, applied in 3D object support structures, metal processing equipment, manufacturing tools, etc., can solve the problem of lack of effective technical solutions and solutions, and achieve the effect of controllable precision

Active Publication Date: 2019-03-08
SHANGHAI INST OF OPTICS & FINE MECHANICS CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, 3D printing with a resolution of 1 μm-100 μm still lacks effective technical solutions and solutions

Method used

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  • Multi-resolution femtosecond laser 3D printing device and printing method

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Embodiment Construction

[0015] The present invention will be further described below in conjunction with the embodiments and accompanying drawings, but the protection scope of the present invention should not be limited thereby.

[0016] see figure 1 , figure 1 It is the optical path diagram of the embodiment of the multi-resolution femtosecond laser 3D printing device of the present invention. It can be seen from the figure that the multi-resolution femtosecond laser 3D printing device of the present invention includes a stretcher 1, an amplifier 2, a variable-focus convex lens 3 and a concave lens 4, an adjustable attenuation sheet 5, a first A grating 6, a second grating 7, a spatial light modulator 8, a first convex lens 9, a plane mirror 10, a second convex lens 11, a dichroic mirror 12, a flat-field lens 13, and a printing material 14 on a three-dimensional translation stage 15 , in the direction of the reflected light of the printing material 14 are the flat-field lens 13, the dichroic mirro...

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Abstract

The invention discloses a multi-resolution femtosecond laser 3D printing device and printing method. According to the core of the multi-resolution femtosecond laser 3D printing device and printing method, the time-space focusing technology is utilized for carrying out time-space shaping on femtosecond laser pulses, and the time-space characteristics of incidence pulse light beams are operated and controlled; and meanwhile, the space wavefront correction technology is utilized for carrying out compensation on aberration, three-dimensional symmetric focal spot shapes of different scales in a printing material are achieved, and therefore three-dimensional object photocuring forming of different scales is carried out. The multi-resolution femtosecond laser 3D printing device and printing method have the beneficial effects of being effective, high in speed, controllable in precision and the like; photocuring 3D forming and printing of different scales can be achieved; and the important potential application value is achieved in the fields such as laser 3D printing, mold manufacturing, biomedical functional organ manufacturing, laser three-dimensional processing and displaying.

Description

technical field [0001] The invention relates to photocuring 3D printing, in particular to a multi-resolution femtosecond laser 3D printing device and printing method. Background technique [0002] In 1986, American Ph.D. Charles Hull proposed photocuring three-dimensional rapid prototyping technology in his doctoral dissertation and applied for related patents. The principle is to use laser curing liquid resin to form, and now it is usually called SLA technology (Stereo lithography appearance). SLA is the first molding technology proposed and commercially applied. Due to the high maturity, high precision and wide application of this technology, it has received great attention since it entered the historical stage, and printing methods and equipment based on SLA technology emerge in endlessly. Today, 3D printing based on SLA technology is used in many fields such as design verification, small batch trial production and wax film casting in the field of industrial manufacturin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C64/273B29C64/135B33Y30/00
CPCB33Y30/00
Inventor 程亚储蔚谭远鑫
Owner SHANGHAI INST OF OPTICS & FINE MECHANICS CHINESE ACAD OF SCI