Invention Publication
- Patent Title: Waveguide-Based Displays with Tint Layer
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Application No.: US18489662Application Date: 2023-10-18
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Publication No.: US20240168296A1Publication Date: 2024-05-23
- Inventor: Alexander D. Schlaupitz , Edward J. Wrzesniewski , Graham C. Nelson , Hyungryul Choi , Kibyung Seong , Vikrant Bhakta , Xiaonan Wen , Zachary M. Beiley
- Applicant: Apple Inc.
- Applicant Address: US CA Cupertino
- Assignee: Apple Inc.
- Current Assignee: Apple Inc.
- Current Assignee Address: US CA Cupertino
- Main IPC: G02B27/01
- IPC: G02B27/01 ; G02F1/161

Abstract:
An electronic device may include a first bias lens that transmits world light to an output coupler on a waveguide. The output coupler may transmit the world light while coupling image light out of the waveguide. A second bias lens may transmit the world light and the image light to an eye box. A tint layer may transmit the world light towards the output coupler. The tint layer may be planar and layered onto a planar surface of the first bias lens or another lens, may be separated from the first bias lens by an air gap, may be non-parallel relative to the waveguide, and/or may be curved and separated from the first bias lens and the waveguide by air gaps. When planar, the tint layer may be provided with spacers between substrates or between the tint layer and the waveguide to maximize parallelism.
Public/Granted literature
- US3119255A Apparatus for measuring the hardness of a material Public/Granted day:1964-01-28
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