发明名称 |
SAFETY APPARATUS OF AUTOMATIC FOCUS CONTROLLING CAMERA |
摘要 |
In an automatic focusing device for a camera lens, a safety device is provided for insuring that the camera lens will be focused when a coincident auto-focusing point signal is not produced. A movable focus adjustment member for focusing the lens has a first cam thereon defining a plurality of focusing positions and a latch mechanism is coactive with the first cam to select a focusing position in response to the receipt of the signal indicating a coincident auto-focusing point. The safety device includes a second cam on the focus adjustment member defining a focusing position corresponding to a predetermined pan focusing distance between zero and infinity and wherein the latching mechanism is coactive with the second cam when the coincident auto-focusing point signal is not produced. |
申请公布号 |
JPS5492322(A) |
申请公布日期 |
1979.07.21 |
申请号 |
JP19770159269 |
申请日期 |
1977.12.29 |
申请人 |
SEIKO KOKI KK |
发明人 |
KITAI KIYOSHI;TAKAZAWA YUZURU |
分类号 |
G03B13/36;G02B7/09;G02B7/28;G03B3/00;G03B3/10;G03B9/08 |
主分类号 |
G03B13/36 |
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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