发明名称 |
CONTRAST CHART APPARATUS, CONTRAST SENSITIVITY MEASURING APPARATUS, AND CONTRAST SENSITIVITY MEASURING METHOD |
摘要 |
<p>A contrast chart device of the present invention comprises a contrast target presenting part for presenting a contrast target for a contrast sensitivity test at prescribed timing; a pupil data measuring part for producing an image of an anterior ocular segment of a subject and measuring the diameter or area of a pupil region in the anterior ocular segment; and a measurement timing forming part for forming timing at which the pupil data measuring part performs measurement. <IMAGE></p> |
申请公布号 |
EP1366706(A1) |
申请公布日期 |
2003.12.03 |
申请号 |
EP20020711382 |
申请日期 |
2002.02.07 |
申请人 |
TOPCON CORPORATION |
发明人 |
MIHASHI, TOSHIFUMI;HIROHARA, YOKO |
分类号 |
A61B3/032;A61B3/11;(IPC1-7):A61B3/028;A61B3/06 |
主分类号 |
A61B3/032 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|