- 专利标题: OBSERVATION OPTICAL SYSTEM AND IMAGE DISPLAY APPARATUS HAVING THE SAME
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申请号: US17388057申请日: 2021-07-29
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公开(公告)号: US20210356731A1公开(公告)日: 2021-11-18
- 发明人: Shuichi Mogi
- 申请人: CANON KABUSHIKI KAISHA
- 申请人地址: JP Tokyo
- 专利权人: CANON KABUSHIKI KAISHA
- 当前专利权人: CANON KABUSHIKI KAISHA
- 当前专利权人地址: JP Tokyo
- 优先权: JP2019-024086 20190214
- 主分类号: G02B25/00
- IPC分类号: G02B25/00 ; G02B3/08 ; G02B9/10 ; G02B9/16 ; G02B9/34 ; G02B9/60
摘要:
An observation optical system is configured to observe an image displayed on an image display plane and includes a negative lens and a positive lens. At least one of the negative lens and the positive lens has a lens surface having a Fresnel shape. A predetermined condition is satisfied.
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