Invention Grant
- Patent Title: Low-temperature hermetic sealing for diffractive optical element stacks
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Application No.: US16254637Application Date: 2019-01-23
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Publication No.: US10732428B2Publication Date: 2020-08-04
- Inventor: Moshe Kriman , Adar Magen
- Applicant: APPLE INC.
- Applicant Address: US CA Cupertino
- Assignee: APPLE INC.
- Current Assignee: APPLE INC.
- Current Assignee Address: US CA Cupertino
- Agency: Kligler & Associates Patent Attorneys Ltd
- Main IPC: G02B27/42
- IPC: G02B27/42 ; G02B5/18 ; G02B7/00 ; C03B23/20 ; G02B27/00
Abstract:
A method for producing an optical apparatus includes providing a pair of glass wafers. One or more diffractive optical elements (DOEs) are formed on one or more of the glass wafers. A spacer is positioned between the glass wafers so as to define a cavity containing the DOEs, and a hermetic seal that bonds the glass wafers together and seals the cavity is formed.
Public/Granted literature
- US20190171030A1 Low-temperature hermetic sealing for diffractive optical element stacks Public/Granted day:2019-06-06
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