- 专利标题: LIGHTGUIDE ASSEMBLY WITH SWITCHABLE INPUTS
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申请号: US18124424申请日: 2023-03-21
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公开(公告)号: US20230367124A1公开(公告)日: 2023-11-16
- 发明人: Sihui He , Xiayu Feng , Renate Eva Klementine Landig , Jacques Gollier
- 申请人: Meta Platforms Technologies, LLC
- 申请人地址: US CA Menlo Park
- 专利权人: Meta Platforms Technologies, LLC
- 当前专利权人: Meta Platforms Technologies, LLC
- 当前专利权人地址: US CA Menlo Park
- 主分类号: G02B27/01
- IPC分类号: G02B27/01
摘要:
A lightguide assembly includes a stack of optically separated lightguide plates for conveying image light to an eyebox. At least one lightguide plate of the stack includes an in-coupler configured for switchably in-coupling the image light into the lightguide plate. The switchable in-coupler(s) may be used to time-sequence through different lightguides of the stack, each lightguide carrying a portion of the image such as a field of view portion or a color channel of the image. The time-sequencing through the lightguides allows one to compensate for image offsets due to the lightguide being non-parallel to one another, by providing corresponding offsets in the image portions being carried by different lightguides.
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