发明授权
- 专利标题: Visual aid
- 专利标题(中): 视觉辅助
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申请号: US10474415申请日: 2002-04-12
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公开(公告)号: US06972903B2公开(公告)日: 2005-12-06
- 发明人: Hideo Hara , Kazunaga Shimizu , Fumiaki Koizumi , Yasuhiro Sakai
- 申请人: Hideo Hara , Kazunaga Shimizu , Fumiaki Koizumi , Yasuhiro Sakai
- 申请人地址: JP JP
- 专利权人: Nittoh Kogaku K.K.,Toshinori Tsuchiya
- 当前专利权人: Nittoh Kogaku K.K.,Toshinori Tsuchiya
- 当前专利权人地址: JP JP
- 代理机构: Thompson Hine LLP
- 优先权: JP2001-114746 20010413
- 国际申请: PCT/JP02/03641 WO 20020412
- 国际公布: WO02/084370 WO 20021024
- 主分类号: G02C9/00
- IPC分类号: G02C9/00 ; G02B25/00 ; G02B27/00 ; G02B27/01 ; G02B27/02 ; H04N5/64 ; G02C1/00
摘要:
A vision assisting apparatus includes a casing for forming an inversely U-shaped optical path, a light entry, provided at one end of the optical path, through which light enters, a light exit, provided at another end of the optical path, through which light exits in an opposite direction to the light entry, an optical system for processing an image entered via the light entry by using the optical pass and outputting a processed image via the light exit, and attaching structure for attaching the casing to a wearer so that the light exit is positioned close to an eye of the wearer. By forming the inversely U-shaped optical path with the casing, it is possible to provide a sufficiently long optical path in a compact form. Accordingly it is possible to provide the vision assisting apparatus that does not hide facial expressions, is easy to use, and can provide a sufficient length for setting a magnifying optical system without extending the distance in the horizontal direction between the light entry and the light exit.
公开/授权文献
- US20040179261A1 Visual aid 公开/授权日:2004-09-16
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