Grand Idea Studio

Laser Position Sensor


The Laser Position Sensor (LPS) module is an optical sensor that measures and provides the two-dimensional coordinates of visible red laser light (630-694nm) shined onto its surface.

The LPS has a resolution of 0.0001″, an accuracy of 0.001″, and a measurement range of +/-0.2″ (+/-5mm). Applications include positioning and alignment, long-range beam-break/security trip wires, remote device control, data communications, and high-speed photography.

This design is based, with permission, on Roger Johnson and Chris Lentz’s 2-D Optical Position Sensor (Circuit Cellar #152, March 2003). There are no plans to manufacture or sell the LPS. It is distributed under a Creative Commons Attribution-Share Alike 3.0 license and no technical support will be provided.



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