作者: 基晴 奥濃 , Motoharu Okuno , 雄基 丸本 , Yuki Marumoto
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摘要: PROBLEM TO BE SOLVED: To provide a reflection type photoelectric sensor that is capable of both detection in short distance and long reduced size cost.SOLUTION: Among light projection lens 3A reception 3B mounted to holder 4 front element 1 2, at least the constructed include main body 30 by condenser protrusion part 31 protruding from back surface 30. The includes an inclination plane 32 inclined with respect direction which lenses are arranged. Light entering into other than condensed as first location spaced apart 3A. On hand, significantly refracted vicinity becomes second intersects optical path position preceding range 3B.