Laser beam pointer, tracer or angle sensor for building works surveying measurements - provides laser diode, batteries and spirit level within calibrated tube, with mirror for directing laser beam perpendicular to axis of tube, and stepper motor for rotating tube around axis

摘要

The system consists of a calibrated tube (2) inside of which is a diode laser transmitter (1), mounted so that the optical transmission axis coincides with the tube axis. A mirror (8) directs the laser beam in a direction perpendicular to the axis. The tube is rotated around the axis. Inside the tube is a spirit level (5) whose bubble is visible through a window in the tube. The tube also houses an electronic power circuit (4) together with batteries (3). USE/ADVANTAGE - Small size and can be mounted on large range of supports, whilst ensuring best possible precision along vertical and horizontal target lines.