Reflective material mold with flat-topped microprism arrays and preparation method thereof

A technology of reflective materials and micro-prisms, applied in optics, optical components, household appliances, etc., can solve the problems of cumbersome preparation process, achieve easy separation of film molds, solve the effect of sharp drop in retroreflection coefficient, and reduce wear rate

Active Publication Date: 2021-11-12
YEAGOOD INC
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0009] The present application provides a reflective material mold with a flat-top microprism array and its preparation method, which solves the problem of changing different V-shaped cutters in d

Method used

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  • Reflective material mold with flat-topped microprism arrays and preparation method thereof
  • Reflective material mold with flat-topped microprism arrays and preparation method thereof
  • Reflective material mold with flat-topped microprism arrays and preparation method thereof

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Embodiment Construction

[0042] In order to better understand the above-mentioned technical solution, the above-mentioned technical solution will be described in detail below in conjunction with the specification and specific implementation manners.

[0043] A method for preparing a flat-top positive-angle microprism reflective material mold, comprising the steps of:

[0044] Step (1): Calculate the planing distance, first design the flat-top micro-prism unit, and then calculate the data of the flat-top micro-prism unit based on the pointed-top micro-prism unit, as follows

[0045] Please refer to figure 1 , the included angles of the triangles at the bottom of the right-angled pyramid are designed to be 60°, that is, ∠A=∠B=∠C=60°, the triangle at the bottom of the right-angled pyramid is an equilateral triangle, whose side length is L, and its height is D; The triangle on the side of the pyramid is an isosceles right triangle, and its edge length is L·sin45°; the height of the pointed pyramid is h. ...

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Abstract

The invention discloses a reflective material mold with flat-topped microprism arrays and a preparation method thereof. The reflective material mold is formed by the unit flat-topped microprism arrays, and the side surfaces of the unit flat-topped microprism arrays are quadrilateral. According to the reflective material mold, a V-shaped cutter is used for planing a micro V-shaped groove in a first direction, and after all planing is carried out in the first direction, a micro V-shaped groove is planed in a next planing direction, so that the reflective material mold with the same unit flat-topped microprism arrays is constructed. According to the preparation method, the planing frequency is reduced, the mold production efficiency is improved, the planing difficulty is reduced, and a manufactured flat-topped microprism array reflecting material has the excellent characteristics of meeting large-angle incidence and observation conditions and keeping a high retroreflection coefficient, a large visual angle range is better widened, the visible recognition degree of reflective signboards on road sections including high-speed entrance/exit ramps, interchange curve guide roads and the like with large visual blind areas are better increased, and the safe driving coefficient is improved.

Description

technical field [0001] The invention relates to the technical field of reflective materials, in particular to a reflective material mold with a flat-top microprism array and a preparation method thereof. Background technique [0002] Prism technology in the retroreflective material industry includes full prism and large-angle micro-prism retroreflective film. Among them, the full prism is made by removing the non-reflective parts at the three corners of the triangular pyramid and then re-splicing and combining or rebuilding the pyramid structure of the full prism. Both are the transformation of the corners of the triangular pyramid, forming two quadrilateral sides and one pentagonal side. Pyramid: The existing method for preparing the original mold of the full prism is to complete the assembly or structural reconstruction of the full prism unit corner cone under the micron-level condition. From the perspective of maintaining the integrity and consistency of the pyramid, the ...

Claims

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Application Information

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IPC IPC(8): B29C33/38B29C33/42G02B5/122B29L11/00
CPCB29C33/3842B29C33/3835B29C33/42G02B5/122B29L2011/00
Inventor 黄志鹏梁桂德杨光朱庆金段明辉刘凯许明旗
Owner YEAGOOD INC
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