眼科装置
- 专利权人:
- 株式会社トーメーコーポレーション
- 发明人:
- 渡辺 拓,加藤 千比呂
- 申请号：
- JP2006346622
- 公开号：
- JP4914203B2
- 申请日:
- 2006.12.22
- 申请国别(地区):
- JP
- 年份:
- 2012
- 代理人:
- 摘要：
PROBLEM TO BE SOLVED: To provide an ophthalmological instrument which permits both Z-alignment driving over a wide range and accurate driving control to a focusing position to be consistently performed by appropriately changing the detection information of an ultrasonic distance measuring means and an optical Z-alignment sensing means.
SOLUTION: The ophthalmological instrument is provided with: an XY-alignment detection means to detect upward, downward, rightward and leftward alignment information of the instrument with respect to an examinees eye E an optical Z-alignment detection means to optically detect the Z-alignment information of the instrument with respect to the examinees eye E by a light receiving element an ultrasonic wave transmission means to transmit ultrasonic waves to the examinees eye E on the basis of the XY-alignment detection information an ultrasonic wave Z-alignment detection means to detect the reflected waves of ultrasonic waves transmitted to the examinees eye E a sonic velocity correction means to correct the sonic velocity varied by temperature a Z-alignment detection signal selection means to select one of detection signals detected by two Z-alignment detection means and a Z-axis driving means to drive the instrument on the basis of the selected Z-alignment detection signal.
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- 来源网站：
- 中国工程科技知识中心
