Invention Grant
- Patent Title: Transparent member and image pickup apparatus, and method of manufacturing transparent member
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Application No.: US16700042Application Date: 2019-12-02
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Publication No.: US12096104B2Publication Date: 2024-09-17
- Inventor: Yo Watanabe , Tomonari Nakayama , Junji Kawasaki , Miwa Takachi
- Applicant: CANON KABUSHIKI KAISHA
- Applicant Address: JP Tokyo
- Assignee: Canon Kabushiki Kaisha
- Current Assignee: Canon Kabushiki Kaisha
- Current Assignee Address: JP Tokyo
- Agency: Venable LLP
- Priority: JP 18230318 2018.12.07 JP 19199987 2019.11.01
- Main IPC: H04N23/54
- IPC: H04N23/54 ; C08J7/02 ; C08J7/054 ; C08J7/06 ; C09D1/00 ; G02B1/14 ; G02B1/18 ; G03B11/04 ; H04N23/51 ; H04N23/55

Abstract:
Provided is a transparent member having formed thereon a film having high reliability, the film being capable of suppressing an increase in its haze and maintaining its hydrophilicity for a long time period even when exposed to an outdoor environment. The transparent member is a transparent member including a resin base material and a porous layer arranged thereon, wherein the porous layer has a network structure in which silica particles are joined to each other with a binder, wherein the resin base material has a mixed layer that the network structure has entered, wherein the mixed layer has a thickness of 20 nm or more and 160 nm or less, and wherein a thickness variation in a range having a length of 1 μm of a section of the mixed layer in its thickness direction along the surface of the resin base material is 15% or less.
Public/Granted literature
- US20200186685A1 TRANSPARENT MEMBER AND IMAGE PICKUP APPARATUS, AND METHOD OF MANUFACTURING TRANSPARENT MEMBER Public/Granted day:2020-06-11
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