Chapter 1: Overview; Figure 1-1: Functional Principle Of A 2-Axis Galvanometer Scanner - Aerotech AGV-HP Series Hardware Manual

AGV-HP(O) Hardware Manual

Chapter 1: Overview

A 2-axis galvanometer scanner is used to deflect a laser beam in the X and Y directions. The laser can be
directed to any position within the two-dimensional area, which is called the "marking field". Deflection of the
laser beam is accomplished by two mirrors, each of which is actuated by a galvano motor. Every scan head
includes a beam entrance aperture, into which the laser beam is fed, and a beam exit aperture, through which
the laser beam is emitted from the unit after deflection. Only suitable lasers of the appropriate wavelength,
power level, beam diameter, etc., may be fed into the beam entrance aperture. Contact the factory for mirror
and coating details. Depending on the options selected for the particular scan head, the beam exit aperture
may be either open or fitted with a focal lens.
Figure 1-1:
Integration Flexibility
Most scanner control interfaces are on the same surface as the laser input aperture which can create
interference problems if the laser beam path approaches the scanner from the top. The AGV-HP(O) control
connections are two 25-pin D-style connectors.The scanner cables can be oriented in any direction and
terminated on the machine to ensure there is no interference with beam delivery. The AGV-HPO is also
available with right-side and left-side input apertures for "mirror image" machine builds or side-by-side
scanner mounting with a single laser beam split to source both scanners.
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Functional Principle of a 2-Axis Galvanometer Scanner
Chapter 1: Overview
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