发明名称 |
Zoom lens for video camera |
摘要 |
A zoom lens for a video camera includes a focusing mechanism which is designed to prevent a picked-up image from shaking when the focusing mechanism is operated manually or electrically. In the focusing mechanism, a female helicoid is threadedly fitted on a male helicoid, and a female helicoid holder supports the female helicoid from a lower side of the female helicoid to maintain a proper threaded engagement between the female helicoid and the male helicoid. The female helicoid holder is provided at a lower side of the male helicoid.
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申请公布号 |
US5191478(A) |
申请公布日期 |
1993.03.02 |
申请号 |
US19920829237 |
申请日期 |
1992.02.03 |
申请人 |
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. |
发明人 |
HORIGUCHI, SHUUICHI;UCHIDA, OSAMU |
分类号 |
G02B7/04;G02B7/10;H04N5/232 |
主分类号 |
G02B7/04 |
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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