发明名称 |
Back projection visual field tester |
摘要 |
One embodiment of the present invention is a visual field tester that includes: (a) a projection screen; (b) a stimulus projection system that projects a light stimulus onto a first side of the projection screen; (c) a background projection system that projects a background light onto the first side of the projection screen; and (d) a lens system disposed on a second side of the projection screen that directs light transmitted through the projection screen to a predetermined location.
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申请公布号 |
US6688744(B2) |
申请公布日期 |
2004.02.10 |
申请号 |
US20010016536 |
申请日期 |
2001.12.10 |
申请人 |
CARL ZEISS MEDITEC, INC. |
发明人 |
WEI JAY;WEI JIANPING;BAKER CHRISTOPHER J. R. V. |
分类号 |
A61B3/024;(IPC1-7):A61B3/14 |
主分类号 |
A61B3/024 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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