| 发明名称 |
PRESETTABLE ZOOMING SPEED CONTROLLER |
| 摘要 |
PURPOSE:To achieve the improvement in the follow-up characteristics of a zooming speed controller by providing a bridge circuit comprising connecting FET constant current circuits mutually in opposite directions to a zooming control circuit. |
| 申请公布号 |
JPS5350730(A) |
申请公布日期 |
1978.05.09 |
| 申请号 |
JP19760125270 |
申请日期 |
1976.10.19 |
| 申请人 |
FUJI PHOTO OPTICAL CO LTD |
发明人 |
YAMAMOTO KIKUO |
| 分类号 |
G03B13/36;G02B7/04;G02B7/08;G02B7/28;G03B3/10;G03B5/00;G03B13/34;G03B19/18 |
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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