发明名称 |
DEVICE FOR DETECTING LINE OF SIGHT |
摘要 |
PURPOSE:To accurately obtain a line of sight by an eye-ball even in the case of using a light source positioned at a finite distance. CONSTITUTION:As to the device for detecting the line of sight provided with an illuminating means 101 for illuminating observer's eye-ball, a line of sight calculating means 102 for calculating the line of sight by the eye-ball based on the reflected image on the eye-ball which is illuminated by the illuminating means 101, the line of sight is calculated by the line of sight calculating means 102 by using a distance between the illuminating means 101 and the central position of the cornea curvature of the eye-ball. |
申请公布号 |
JPH0694977(A) |
申请公布日期 |
1994.04.08 |
申请号 |
JP19920245141 |
申请日期 |
1992.09.14 |
申请人 |
NIKON CORP |
发明人 |
NISHIMURA HITOSHI;WATANABE TOSHIMI;SATO SHIGEMASA;SUZUKI AKIO |
分类号 |
A61B3/113;G02B7/28;G03B13/02;G03B13/36;(IPC1-7):G02B7/28 |
主分类号 |
A61B3/113 |
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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