发明名称 |
Mobile lens unit with detection device |
摘要 |
A lens unit includes a lens barrel for receiving at least one lens and a motor arranged to displace the lens barrel between various positions. Displacement of the lens barrel is proportional to an electrical signal applied to the motor. A first conductor is fixed to the lens barrel and is arranged to make electrical contact with a second conductor when the lens barrel is at an initial position. A processor is arranged to detect a change in the electrical contact, to determine an electrical signal at the time of the change and to generate an electrical signal corresponding to the desired displacement.
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申请公布号 |
US7679849(B2) |
申请公布日期 |
2010.03.16 |
申请号 |
US20080129703 |
申请日期 |
2008.05.30 |
申请人 |
STMICROELECTRONICS (GRENOBLE) SAS |
发明人 |
LULE TAREK |
分类号 |
G02B7/02;G02B15/14;G02B21/00 |
主分类号 |
G02B7/02 |
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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