Invention Grant
- Patent Title: Multilayer diffractive optical element
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Application No.: US14850804Application Date: 2015-09-10
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Publication No.: US09696469B2Publication Date: 2017-07-04
- Inventor: Hideo Genda , Maiko Niwa
- Applicant: CANON KABUSHIKI KAISHA
- Applicant Address: JP Tokyo
- Assignee: CANON KABUSHIKI KAISHA
- Current Assignee: CANON KABUSHIKI KAISHA
- Current Assignee Address: JP Tokyo
- Agency: Canon USA, Inc. IP Division
- Priority: JP2014-186856 20140912
- Main IPC: G02B5/18
- IPC: G02B5/18 ; B29D11/00

Abstract:
A multilayer diffractive optical element includes a first substrate, a second substrate, a first resin layer having a first diffraction grating pattern and interposed between the first substrate and the second substrate, and a second resin layer having a second diffraction grating pattern and interposed between the first substrate and the second substrate. The first resin layer includes a first region provided at a peripheral portion adjacent to a portion of the first diffraction grating pattern. The first resin layer includes a second region provided at a peripheral portion adjacent to the first region.
Public/Granted literature
- US20160077251A1 MULTILAYER DIFFRACTIVE OPTICAL ELEMENT Public/Granted day:2016-03-17
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