| 发明名称 |
OBJECT DISTANCE DETECTOR AND AUTOMATIC FOCUS CONTROL DEVICE BY USE OF DETECTOR |
| 摘要 |
PURPOSE:To enhance the detection accuracy and conduct and automatic focus control by assuming a detection signal of the operating condition of vibrating means as reference pulse signal, and setting off the change of the vibrating means in the comparison treating process of the signal. |
| 申请公布号 |
JPS5332729(A) |
申请公布日期 |
1978.03.28 |
| 申请号 |
JP19760107401 |
申请日期 |
1976.09.08 |
| 申请人 |
CANON KK |
发明人 |
HOSOE SANYA;TAMURA SHIYUUICHI;TSUNEKAWA TOKUICHI;MASUNAGA MAKOTO;YOKOTA HIDEO |
| 分类号 |
G03B13/36;G02B7/30;G02B27/40;G03B3/00 |
主分类号 |
G03B13/36 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
|
| 地址 |
|
