发明名称 A PHOTOELECTRIC APPARATUS FOR SENSING OBSTACLES TO MACHINES,AUTOMATICALLY-OPERATED DOORS,SELF-PROPELLED TRUCKS AND LIKE
摘要 <p>An object sensing apparatus includes a plurality of light emitting diodes for illuminating a region of space and a plurality of closely arranged light detectors for receiving light reflected from an object. The apparatus is particularly useful in connection with automatically operated doors.</p>
申请公布号 SG84084(G) 申请公布日期 1985.04.26
申请号 SG19840000840 申请日期 1984.11.26
申请人 BERT OVE JONSSON 发明人
分类号 G01S17/93;E05F15/20;G01S7/48;G01S17/02;G01S17/87;G01V8/20;(IPC1-7):G01V9/04 主分类号 G01S17/93
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