Invention Grant
- Patent Title: Optical element and optical apparatus
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Application No.: US15370243Application Date: 2016-12-06
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Publication No.: US10649235B2Publication Date: 2020-05-12
- Inventor: Satoshi Ito
- Applicant: CANON KABUSHIKI KAISHA
- Applicant Address: JP Tokyo
- Assignee: CANON KABUSHIKI KAISHA
- Current Assignee: CANON KABUSHIKI KAISHA
- Current Assignee Address: JP Tokyo
- Agency: Rossi, Kimms & McDowell LLP
- Priority: com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@7a21211d
- Main IPC: G02C7/08
- IPC: G02C7/08 ; G02F1/1343 ; G02F1/29 ; G02F1/137
Abstract:
An optical element switchable to a first state and a second state includes a first material and a second material, each of optical properties of the first and second materials changes between the first state and the second state, and refractive indices of the first and second materials and Abbe's numbers of the first and second materials satisfy a predetermined relationship.
Public/Granted literature
- US20170168372A1 OPTICAL ELEMENT AND OPTICAL APPARATUS Public/Granted day:2017-06-15
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