OBJECT DETECTION DEVICE

To inexpensively provide an object detection device capable of highly precisely detecting an object existing within a specific area.SOLUTION: An object detection device has projection devices 10, 31, 41, 61, 71 in which plural projectors 12 are arranged, light receiving devices 20, 32, 42 in which plural light receiving units 22 are arranged, and arithmetic processing units 3, 33, 43, 53, light of the projectors 12 is light to be diffused, the arithmetic processing units 3, 33, 43, 53 allow a selected projector 12 to project light, the light receiving units 22 send light reception data to the arithmetic processing units 3, 33, 43, 53, the arithmetic processing units 3, 33, 43, 53 determine presence or absence of reception of light by the light receiving units 22 on the basis of the light reception data, the arithmetic processing units 3, 33, 43, 53 store presence or absence of reception of light by the light receiving units 22 for each projection of light by the projectors 12, and the object detection device for determining whether an object exists within a specific area A on the basis of presence or absence of the stored light reception precisely detects an object existing within the specific area A.SELECTED DRAWING: Figure 4 【課題】特定エリア内に存在する物体を高精度に検出することができる物体検出装置を安価に提供する。【解決手段】複数の投光器12が配列された投光装置10,31,41,61,71と複数の受光器22が配列された受光装置20,32,42と演算処理装置3,33,43,53とを備え、投光器12の光は拡散される光であり、演算処理装置3,33,43,53は選択した投光器12を投光させ、受光器22は受光データを演算処理装置3,33,43,53に送り、演算処理装置3,33,43,53は受光データに基づき、受光器22の受光の有無を判断し、演算処理装置3,33,43,53は、投光器12の投光ごとの受光器22の受光の有無を記憶し、記憶した受光の有無に基づき特定エリアAに物体が存在するか否かを判断する物体検装置により、特定エリアA内に存在する物体を高精度に検出する。【選択図】図４