Title:
FAR INFRARED TRANSMITTING MEMBER AND METHOD FOR MANUFACTURING FAR INFRARED TRANSMITTING MEMBER
Document Type and Number:
WIPO Patent Application WO/2023/171309
Kind Code:
A1
Abstract:
The present invention appropriately transmits far infrared and improves abrasion resistance. A far infrared transmitting member (20) comprises a far infrared transmitting substrate (30), and a first functional film (32) formed on the substrate (30). The average transmittance of light having a wavelength 8 µm to 12 µm is 50% or more. An outermost layer (36) of the first functional film (32) includes ZrO2 as a main component. The ZrO2 content is 50-100 mass% with respect to the entirety of the outermost layer (36). The refractive index for light having a wavelength of 550 nm is 2.05 or greater.
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Inventors:
YASUI YOJI (JP)
Application Number:
PCT/JP2023/005632
Publication Date:
September 14, 2023
Filing Date:
February 17, 2023
Export Citation:
Assignee:
AGC INC (JP)
International Classes:
C03C17/34; B32B9/00; G02B1/14
Domestic Patent References:
| WO2022244686A1 | 2022-11-24 |
Foreign References:
| JP2017151409A | 2017-08-31 | |||
| 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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