Our Bulletin 45MLD Short-range Photoelectric Laser Sensors are Class II diffuse sensors designed for the packaging, material handling and semiconductor industries. These sensors provide background suppression by triangulation, establishing a fixed focal point and suppressing anything beyond the focal point. The rotatable lens also lets you adjust the laser beam spot size at the focal point down to 0.5 mm (0.02 in.) for accurate sensing of small targets such as gap detection, chip detection, and crack detection in semiconductor and packaging applications.
Adjustable focal length from 50…300 mm (2…11.8 in.) Fast 200 µs response time for high-speed sensing or counting Timer option: 40 ms off delay (pulse stretcher, activated via wiring scheme) NPN/PNP output A photoelectric sensor emits a light beam (visible or infrared) from its light-emitting element. A reflective-type photoelectric sensor is used to detect the light beam reflected from the target. A thrubeam type sensor is used to measure the change in light quantity caused by the target crossing the optical axis.
Photoelectric sensors provide three primary methods of target detection: diffused, retro-reflective and thru-beam, with variations of each. In diffused mode sensing, sometimes called proximity mode, the transmitter and receiver are in the same housing.
