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Title:
TRANSMISSION MEMBER
Document Type and Number:
WIPO Patent Application WO/2023/195524
Kind Code:
A1
Abstract:
The present invention improves abrasion resistance while allowing the transmission of light in a plurality of wavelength ranges. A transmission member (20) includes a base material (30) which transmits far infrared rays, and a first functional film (32) formed on the base material (30). The average transmittance of light having wavelengths of 8-12 μm is 50% or more, and the transmittance of light from a laser source that emits light having a wavelength in the range of 0.8-1.8 μm is 80% or more. The refractive index of the outermost layer (34) of the first functional film (32) with respect to light from the laser source is 1.7 or more.

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Inventors:
YASUI YOJI (JP)
KITAOKA KENJI (JP)
Application Number:
PCT/JP2023/014268
Publication Date:
October 12, 2023
Filing Date:
April 06, 2023
Export Citation:
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Assignee:
AGC INC (JP)
International Classes:
B60J1/00; G02B1/115; G01S7/481; G01S17/931; G02B1/14; G02B5/28
Domestic Patent References:
WO2022045011A12022-03-03
WO2021014857A12021-01-28
WO2017086227A12017-05-26
WO2017130934A12017-08-03
Foreign References:
JP2021018253A2021-02-15
Attorney, Agent or Firm:
SAKAI INTERNATIONAL PATENT OFFICE (JP)
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