发明名称 |
Systems and methods for object detection using beam widening optics |
摘要 |
In exemplary embodiments, a diffraction grating is placed in the beam path of the generated light source. The grating expands the beam's field of view by distributing the transmitted radiation into plural sub-fields. Sub-fields associated with distant objects are set to a greater intensity to ensure reflection of the sub-fields back to the receiver. Sub-fields directed to closer objects have a lesser intensity to avoid detection of false objects.
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申请公布号 |
US5313262(A) |
申请公布日期 |
1994.05.17 |
申请号 |
US19920953250 |
申请日期 |
1992.09.30 |
申请人 |
IMRA AMERICA, INC. |
发明人 |
LEONARD, CARL D. |
分类号 |
B60R21/00;B60T1/16;B60T7/22;B60W30/00;G01C3/06;G01S7/481;G01S17/02;G01S17/93;G05D1/02;G08G1/00;G08G1/16;(IPC1-7):G01C3/08;B60T7/16;G01B11/26;G01C3/00 |
主分类号 |
B60R21/00 |
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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