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Lying just to the northeast and southwest of Alkaid, the last star in the handle of the Big Dipper, is a pair of small smudges of light visible in a pair of binoculars on a dark, moonless night. The ...

Developed specifically for the detection of diffuse materials, OPB609 series reflective-object sensors are unfocused, suiting them for detection of paper, labels, or any material with a matte finish.

Photoelectric sensors and light curtain sensors are among the most commonly used sensing devices in factories. Photoelectric ...