发明名称 |
Adjustable motion sensing apparatus |
摘要 |
An infrared motion sensing apparatus mounted within the canopy of a decorative lighting fixture where the apparatus may be vertically adjusted. The apparatus comprises a pyroelectric infrared sensor located in a stationary base. Mounted over the sensor and movable in a vertical direction is a Fresnel lens array. The array is mounted to a frame that is constrained to ride on the base in a vertical direction in response to the rotation of a screw. The canopy has an opening to allow radiation to be received by the sensor and a second opening for a stem of the screw so that manipulation of the stem may take place without disassembly of any part of the lighting fixture.
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申请公布号 |
US6323488(B1) |
申请公布日期 |
2001.11.27 |
申请号 |
US19990326407 |
申请日期 |
1999.06.04 |
申请人 |
DESA INTERNATIONAL, INC. |
发明人 |
MCCAVIT KIM IRWIN;JENSEN BRADFORD BRIAN;KO WAI-SHING PETER |
分类号 |
G08B13/19;(IPC1-7):G08B13/193;F21U23/00 |
主分类号 |
G08B13/19 |
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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