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Honeycomb slightly convex grating, and preparation method and application thereof

A honeycomb-shaped, convex grating technology, applied in the field of three-dimensional image production, can solve the problems of product quality defects, manufacturing and processing accuracy and low printing accuracy, and achieves the effects of strong versatility, significant energy saving, and improved clarity.

Inactive Publication Date: 2015-10-28
陈昭红 +1
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0004] However, dot gratings also have some disadvantages. For example, the diameter of the dots is usually more than 0.3mm, the manufacturing and processing accuracy and printing accuracy (dpi resolution) are low, the product quality is flawed, and the shape of the dots is a circular array ( like figure 1 shown), this array shape grating has a solid blind angle

Method used

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  • Honeycomb slightly convex grating, and preparation method and application thereof
  • Honeycomb slightly convex grating, and preparation method and application thereof
  • Honeycomb slightly convex grating, and preparation method and application thereof

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Embodiment 1

[0039] 1. Manufacture of honeycomb micro-convex grating material

[0040] (1) (Mold CAD drawing design) Array dots in honeycomb shape with a manufacturing accuracy of 0.02mm (20μm), the best array angle is 60°, to form a 360° panoramic 3D material mold CAD drawing file.

[0041] (2) According to the designed CAD drawing, output photopainting film with 25400dpi resolution accuracy, and if the requirements are higher, a chrome plate with a line width of 5 microns can be produced.

[0042] (3) Print the plate with photo-painting film, and perform photolithography to etch the master plate. (deposition-lithography-etching)

[0043] (4) Use the etched honeycomb dot master for UV transfer (pk).

[0044] (5) The 360° panoramic 3D etching template can transfer (uv / pk) 360° panoramic grating materials on transparent substrates such as PUC, PET, TU, and PU.

[0045] 2. Design and production of 360° panorama stereogram

[0046] (1) Design a 3D panorama with a line width of 5 microns i...

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Abstract

The present invention discloses a honeycomb slightly convex grating, and a preparation method and an application thereof. The honeycomb slightly convex grating has a micro lens array layer formed by 360-degree continuous arrangement of orthohexagonal micro lenses, wherein a convex surface of each orthohexagonal micro lens is a spherical curved surface. Through adoption of a honeycomb slightly convex mode, the effect that slightly convex 3D stereo imaging has no blind angle and no blind spot is achieved. The material light transmittance of the slightly convex grating is more than 95%, thus the definition of the later stereo imaging is greatly improved. The surface of the material is coated with a UV light-cured layer so that the surface hardness of the material reaches more than 2H, and physical properties of base materials, such as PC, PET, PTU and PVC, which are used in cooperation with the grating, cannot change, toughness and tensile property can still maintain a good state, thus the honeycomb slightly convex grating can be widely applied to imd plastic product in-mold injection of a large number of industrial products for manufacturing optical anti-counterfeiting elements.

Description

technical field [0001] The invention relates to the technical field of three-dimensional image production, in particular to a honeycomb micro-convex grating and a preparation method and application thereof. Background technique [0002] The existing gratings are divided into three types: plane lens grating, cylindrical lens grating and spherical lens grating according to the special lens form. dot raster). Among them, the slit grating is not suitable for large-scale three-dimensional printing due to the single type of grating and the need for additional light sources to produce effects; while the lenticular lens grating has rich effects and can produce effects without additional light sources, and is suitable for large-scale printing. Bulk printing production. Therefore, at present, lenticular gratings are generally used in the production of three-dimensional patterns, but the viewing direction of lenticular gratings is extremely strict, and there is only one vertical dire...

Claims

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Application Information

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IPC IPC(8): G02B5/18G02B27/22G03F7/20
CPCG02B5/1842G02B5/1847G02B5/1857G02B30/27
Inventor 陈昭红李长洲
Owner 陈昭红
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