Point cloud light source spatial optoelectronic modulation device for photosensitive 3D printing
A 3D printing, light source space technology, applied in the field of 3D printing, can solve problems such as affecting the light stability and service life of LCD chips, reducing the molding speed of 3D printing, and low utilization of light energy.
Active Publication Date: 2021-04-20
CHANGCHUN UNIV OF SCI & TECH +2
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Problems solved by technology
However, the light energy utilization rate of this type of scheme is low. If the luminous intensity of the ultraviolet LED array is increased blindly, the light stability and service life of the LCD chip will be affected due to the ultraviolet absorption of the LCD chip. If the image intensity is low, it is not conducive to liquid Rapid polymerization and curing of photosensitive resin, reducing the speed of 3D printing
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[0008] The specific implementation of the point cloud light source space photoelectric modulation device for photosensitive 3D printing of the present invention is as follows.
[0009] LED screen 1, waveguide fiber cone 2, photocathode 3, microchannel plate 4, MgZnO light-emitting layer 5, and relay lens 6 are arranged coaxially in sequence, as figure 1 shown.
[0010] The LED screen 1 is OLED, the length and width of the screen are 100mm×100mm, the thickness is 0.88mm, and the image resolution is 4K. The fiber diameter of the waveguide fiber taper 2 is 5 μm, the resolution of the big end is 40 lp / mm, and the resolution of the small end is 120 lp / mm. The photocathode 3 is a transmissive photocathode with a thickness of 0.5mm and a diameter of 60mm, and the optoelectronic material is cesium antimonide (Cs 3 Sb), with high sensitivity to visible light. The diameter of the microchannel plate 4 is 60 mm, the thickness is 0.48 mm, and the aperture of the optical fiber microchann...
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Abstract
A point cloud light source space photoelectric modulation device for photosensitive 3D printing belongs to the technical field of 3D printing. In the present invention, the LED screen, waveguide fiber taper, photocathode, microchannel plate, MgZnO luminescent layer, and relay lens are arranged coaxially in sequence, the first annular electrode is located on the back of the photocathode substrate, the second annular electrode, the third annular The electrodes are respectively located on the incident end face and the exit end face of the microchannel plate, and the metal film anode is located on the incident side of the MgZnO light-emitting layer; the visible light monochromatic spatial optical image is emitted by the LED screen, and it is imaged on the photocathode by the waveguide fiber taper, and then by The photocathode converts it into a photoelectron image, and sequentially generates a coupling electric field, a multiplication electric field, and a bombardment electric field between the first ring electrode, the second ring electrode, the third ring electrode, and the metal film anode, and the photoelectron image is enhanced by a microchannel plate , the optoelectronic image is transformed into an ultraviolet photon image by the MgZnO light-emitting layer, and the ultraviolet photon image is imaged by a relay lens into a photocured image.
Description
technical field [0001] The invention relates to a point cloud light source space photoelectric modulation device for photosensitive 3D printing. Firstly, the point cloud light source is modulated into an optoelectronic image, and enhanced by electron multiplication, and finally modulated into an ultraviolet photon image, which belongs to 3D printing. technology field. Background technique [0002] Photocuring molding technology is a conventional technology in 3D printing technology. The so-called photocuring molding refers to the use of the characteristics of the polymerization reaction of the liquid photosensitive resin under the irradiation of ultraviolet light to irradiate the liquid photosensitive resin according to the cross-sectional pattern of the object to be formed to make it solidify and form. The technical solutions for applying for patents around this technical theme involve the printing system structure and printing methods, one of which is the light-curing mol...
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IPC IPC(8): B29C64/106B29C64/20B33Y30/00
CPCB33Y30/00B29C64/106B29C64/20
Inventor 母一宁刘春阳樊海波张拓王帅
Owner CHANGCHUN UNIV OF SCI & TECH