Title:
FAR INFRARED RAY TRANSMITTING MEMBER AND METHOD FOR PRODUCING FAR INFRARED RAY TRANSMITTING MEMBER
Document Type and Number:
WIPO Patent Application WO/2023/171313
Kind Code:
A1
Abstract:
The present invention appropriately transmits far infrared rays, while having improved abrasion resistance. A far infrared ray transmitting member 20 according to the present invention comprises a base material 30 which transmits far infrared rays, and a first functional film 32 which is formed on the base material 30, while comprising an NiOx layer 34 that is mainly composed of NiOx; the average transmittance of light having a wavelength of 8 µm to 12 µm is 50% or more; and the maximum value Hmax of the indentation hardness within the range of indentation depth from the functional film surface of 40 nm to 110 nm is 10 GPa or more as determined by a nanoindentation method.
Inventors:
INOUE HIDEHISA (JP)
YASUI YOJI (JP)
YASUI YOJI (JP)
Application Number:
PCT/JP2023/005653
Publication Date:
September 14, 2023
Filing Date:
February 17, 2023
Export Citation:
Assignee:
AGC INC (JP)
International Classes:
C03C17/245; B32B9/00; C03C17/34; G02B1/14
Domestic Patent References:
| WO2021014857A1 | 2021-01-28 | |||
| WO2022065000A1 | 2022-03-31 | |||
| WO2022244686A1 | 2022-11-24 |
Foreign References:
| JP2017172019A | 2017-09-28 | |||
| JP2018036325A | 2018-03-08 |
Other References:
SHIM HYUNBIN, KIM DONGSOO, KANG INGU, KIM JINKWAN, LEE HEE CHUL: "Nickel oxide film as an AR coating of Si window for IR sensor packaging", PROCEEDINGS OF THE SPIE, SPIE, US, vol. 8704, 18 June 2013 (2013-06-18), US, pages 1 - 6, XP055915667, ISSN: 0277-786X, ISBN: 978-1-5106-5738-0, DOI: 10.1117/12.2013929
Attorney, Agent or Firm:
SAKAI INTERNATIONAL PATENT OFFICE (JP)
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