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Title:
OPTICAL CAMOUFLAGING COMPOSITE MATERIAL
Document Type and Number:
WIPO Patent Application WO/2021/203681
Kind Code:
A1
Abstract:
An optical camouflaging composite material (10), used for attaching onto a target object to be covered and for adhering to the target object to be covered, the material comprising a plurality of first film layers (11), a plurality of second film layers (12), and a pressure-sensitive adhesive layer (13). The plurality of first film layers (11) and the plurality of second film layers (12) are alternately stacked, the outermost layer of the optical camouflaging composite material (10) away from the target object to be covered being a first film layer (11), and the refractive index of the first film layers (11) being greater than the refractive index of the second film layers (12). The pressure-sensitive adhesive layer (13) is positioned on the outer side of a first film layer (11) or a second film layer (12) near to the target object to be covered, and the pressure-sensitive adhesive layer (13) comprises a plurality of pressure-sensitive adhesive parts (131) arranged at intervals, gap parts (132) being formed between adjacent two pressure-sensitive adhesive parts (131) by a gas (132). By means of the pressure-sensitive adhesive parts (131) arranged at intervals of the pressure-sensitive adhesive layer (13) and the gaps formed between adjacent two pressure-sensitive adhesive parts (131) by air (232), compared to providing pressure-sensitive adhesive on the entirety of an object, the provision of an air structure is able to create a greater difference in refractive index between the pressure-sensitive adhesive layer (13) and the lower surface of the plurality of layers of film. The invention thus features an increased reflectivity and a broadened range of reflection, thus having a better concealing effect.

Inventors:
ZHU HAOSHU (CN)
YE RUI (CN)
ZUO ZHICHENG (CN)
LIU PENG (CN)
REN JIAAN (CN)
CHEN LINSEN (CN)
ZHU ZHIJIAN (CN)
Application Number:
PCT/CN2020/124442
Publication Date:
October 14, 2021
Filing Date:
October 28, 2020
Export Citation:
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Assignee:
SVG TECH GROUP CO LTD (CN)
JIANGSU WEIGE NEW MATERIAL TECH CO LTD (CN)
International Classes:
G02B5/08
Domestic Patent References:
WO2014103768A12014-07-03
Foreign References:
CN106396425A2017-02-15
CN206248869U2017-06-13
CN107748404A2018-03-02
CN110275228A2019-09-24
Attorney, Agent or Firm:
SUZHOU JINHE INTELLECTUAL PROPERTY AGENCY (SPECIAL GENERAL PARTNERSHIP) (CN)
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