brief introduction: Introduction:A photoelectric sensor, or photo eye, is an equipment used to discover the distance, absence, or presence of an object by using a light transmitter, often infrared, and a photoelectric receiver. They are largely used in industrial manufacturing. There are three different useful types: opposed (through beam), retro-reflective, and proximity-sensing (diffused). Using the frequencies at or near the visible light spectrum, photoelectric sensors can detect changes in the patterns of ligh
Pq70 diffuse reflective Pq70 diffuse reflective 天津神悦电子科技有限公司 Photoelectric Sensors