- Patent Title: Reflecting element, light deflecting device, image projection device, optical writing device, object recognition device, mobile object, and head-mounted display
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Application No.: US17188927Application Date: 2021-03-01
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Publication No.: US11892660B2Publication Date: 2024-02-06
- Inventor: Kazutaka Niigata
- Applicant: Ricoh Company, Ltd.
- Applicant Address: JP Tokyo
- Assignee: RICOH COMPANY, LTD.
- Current Assignee: RICOH COMPANY, LTD.
- Current Assignee Address: JP Tokyo
- Agency: XSENSUS LLP
- Priority: JP 20050319 2020.03.19
- Main IPC: G02B5/08
- IPC: G02B5/08 ; G02B26/08 ; G02B26/10
Abstract:
A reflecting element includes a first reflecting film to reflect light and a second reflecting film configured to increase a reflectivity of the first reflecting film. The second reflecting film includes a layer of high-refractive-index material and a layer of low-refractive-index material with a refractive index lower than the layer of high-refractive-index material. The layer of low-refractive-index material is a top layer of the second reflecting film.
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