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Title:
TWO-DIMENSIONAL CHARACTERISTIC-BASED REFLECTIVE GEOMETRIC HOLOGRAPHIC FILM AND PREPARATION METHOD THEREFOR AND USE THEREOF
Document Type and Number:
WIPO Patent Application WO/2021/208941
Kind Code:
A1
Abstract:
Provided are a two-dimensional characteristic-based reflective geometric holographic film and a preparation method therefor and the use thereof. The reflective geometric holographic film comprises a primitive film (1) and a plurality of columnar primitive prisms (2) arranged on the surface of the primitive film (1) in an array manner, with the cross sections of the columnar primitive prisms being right-angled triangles, wherein the surfaces on which the hypotenuses of the cross sections of the columnar primitive prisms (2) are located are all attached to the surface of the primitive film (1), and a plurality of transparent layers (11) and reflecting layers (12), which are alternately arranged, are arranged inside the primitive film (1) in the lengthwise directions of the columnar primitive prisms (2); and a layer of a reflecting film (3) is arranged on an inclined plane on which the right-angled side of the cross section of each columnar primitive prism (2) is located, and the error range between the right angle contained in the cross section of each columnar primitive prism (2) and the angle formed by the transparent layer (11), the reflecting layer (12) and the lengthwise direction of the columnar primitive prism (2) is within ±5°. By means of simple two-dimensional characteristic-based cutting and machining, implementation on a large scale is easy to achieve; the primitive film (1) is preferably a flexible primitive film; the product yield is high; and the characteristic of same being flexible enables the two-dimensional characteristic-based reflective geometric holographic film to meet the requirements of folding, winding, storage, etc.

Inventors:
WANG GUANGJUN (CN)
YU WEIWEI (CN)
Application Number:
PCT/CN2021/087143
Publication Date:
October 21, 2021
Filing Date:
April 14, 2021
Export Citation:
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Assignee:
JINGMEN CITY DREAM EXPLORATION TECH CO LTD (CN)
International Classes:
G02B27/00; G02B5/32
Foreign References:
CN111338015A2020-06-26
CN111338016A2020-06-26
CN111338177A2020-06-26
CN110794504A2020-02-14
CN107193125A2017-09-22
CN103488036A2014-01-01
JP2011215569A2011-10-27
Attorney, Agent or Firm:
UNITALEN ATTORNEYS AT LAW (CN)
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