Invention Grant
- Patent Title: Antireflection film, optical device, and production method for antireflection film
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Application No.: US15889347Application Date: 2018-02-06
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Publication No.: US10705258B2Publication Date: 2020-07-07
- Inventor: Kazuyuki Miyashita
- Applicant: Seiko Epson Corporation
- Applicant Address: JP
- Assignee: Seiko Epson Corporation
- Current Assignee: Seiko Epson Corporation
- Current Assignee Address: JP
- Agency: Harness, Dickey & Pierce, P.L.C.
- Priority: com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@7cb16358
- Main IPC: G02B1/115
- IPC: G02B1/115 ; G02B26/10 ; G02B7/182 ; G02B26/08 ; G02B5/00 ; G02B27/10 ; G02B27/14
Abstract:
An antireflection film includes a light shielding layer which is placed on a substrate and contains an electrical conductor, a first transmission layer which is placed on the light shielding layer and contains a dielectric, a semi-transmission layer which is placed on the first transmission layer and contains an electrical conductor, and a second transmission layer which is placed on the semi-transmission layer and contains a dielectric, wherein the light shielding layer and the semi-transmission layer have a larger extinction coefficient than the first transmission layer and the second transmission layer.
Public/Granted literature
- US20180313979A1 ANTIREFLECTION FILM, OPTICAL DEVICE, AND PRODUCTION METHOD FOR ANTIREFLECTION FILM Public/Granted day:2018-11-01
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