4

Laser Light Source

Three solid state lasers are used in the ARRILASER, producing monochro-
matic light beams in the colors red, green and blue. With a perfect Gaussian
shape, very long life expectancy and minimal size as well as power consump-
tion, they are the key to the ARRILASER’s unrivalled image quality.
The data for each color channel and pixel is fed to an Acousto-optical
Modulator (AOM) as a light intensity value, according to which the beam
intensity is controlled. The AOM translates the digital data of each pixel into
beam intensity in less than 17 nanoseconds.

Deection System

Moving parts on the ARRILASER are designed to sustain a minimum of wear.
A new aerostatic bearing motor, which encounters no mechanical friction
during operation, is used to achieve the speed required for the deection of
the beam. Line by line is written on lm in an ultra precision linear stage.
A linear induction motor moves the stage through direct magnetic induction
without any additional moving parts such as gears.
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