发明名称 |
Zoom camera with manual focus function |
摘要 |
A zoom camera having enhanced focusing stability during high magnification zooming under environments of high temperatures or low temperatures. When the zoom camera performs zoom-in operations in an environment of high or low temperatures, aperture control is added as the zoom magnification becomes higher and the temperature becomes higher or lower whereby the depth of field is made deeper to assure the presence of a range with good focusability. |
申请公布号 |
US8068166(B2) |
申请公布日期 |
2011.11.29 |
申请号 |
US20080260115 |
申请日期 |
2008.10.29 |
申请人 |
NISHIGUCHI TOMOAKI;OONO HIDEHARU;HITACHI, LTD. |
发明人 |
NISHIGUCHI TOMOAKI;OONO HIDEHARU |
分类号 |
H04N5/232;H04N5/235 |
主分类号 |
H04N5/232 |
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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