SHIELDING STRUCTURE OF PASSIVE INFRARED SENSOR AND PASSIVE INFRARED SENSOR DEVICE HAVING THE SHIELDING STRUCTURE

摘要

A shielding structure of a passive infrared sensor and a passive infrared sensor device having the shielding structure. The shielding structure matches with a lens (14) and is provided with a movable part (162). A user can move the movable part (162) over the lens (14) to shield the range exposed to the outside, thus limiting the sensing range of the passive infrared sensor device. The shielding structure has the advantages of easy installation and reduced costs.