Home > Products > Scanning Systems > Rotary Airbearing Scanners
For over
30 years, Axsys Technologies has been
providing high performance laser scanning
solutions for a multitude of imaging
applications ranging from automated
optical inspection to high-resolution
film recorders. Our laser scanning
devices are the heart of some of the
most precise instruments in the world. Our
success in these demanding applications
goes beyond our expertise in optics,
mechanics and electronics. Axsys Technologies
understands our customer’s overall
systems’ requirements, offering
guidance to the customer to ensure
the requirements are properly specified
early in the product design.
Product
Description
Axsys Technologies designs
and manufacturers both aerodynamic and aero-static
rotary airbearing scanners. Each device
has specific advantages that will provide
the optimal precision laser scanning solution
for your application.
By generating it’s own air bearing
cushion as the spindle lifts off during
rotation, the aerodynamic laser scanner
provides numerous advantages over mechanical
bearings for many applications where an
air supply is not available. Axsys
Technologies aerodynamic laser scanners
provide high rotational speeds, mechanical
cross-scan accuracy, and extremely low jitter
when used in conjunction with Axsys Technologies’ spindle
controllers.
For ultimate performance at all speeds,
Axsys Technologies’ aero-static air
bearing laser scanners are the technology
of choice. Suspended by pressurized
air, the aero-static bearing is completely
cushioned prior to dynamic rotation, enabling
the device to deliver the same high performance
from low to high speeds. In addition
to all of the inherent advantages of an
air bearing, the aero-static bearing provides
extremely high stiffness, offering additional
load carrying capacity as well as very low
repeatable spindle run-out errors.
Example
Customer Applications
Computer-to-Film and
Computer-to-Plate imagesetting
Medical imaging film
plotters
Automated Optical
Inspection of printed circuit boards
Web inspection
Semiconductor mask
production
Key
Features
Aero-static – Pressurized
air for bearing suspension system
Aerodynamic – Self-generating
air bearing suspension system
High bearing stiffness
Rugged design
Multiple types of
optical deflectors ranging from mirrors,
polygons, beam bending cubes and penta
prisms
Brushless DC and AC
hysteresis synchronous motors
Closed-loop control
electronics available
Wide range of speed
and position feedback devices available
Key
Benefits
Broad range of rotational
speeds from 1-100,000 RPM
Contamination free
device for clean environments
Infinite orientation
of the spindle rotational axis
Very low cross-scan
wobble errors
Very low jitter or
in-scan rotational errors
How
to Specify
Application
Type
of optical deflector
Specify shape or type
of optical deflector
Scan
rate
Frequency
Optical
Scan Angle
=2 x 360/number of
facets
Apex
angle error
Angular deviation
of the reflected beam
Mirror
aperture size
Beam diameter
Mirror
speed
Rotations per minute
Operating
wavelength
Speicfy the laser
source used in the application
Mirror
reflectivity
Percent reflectivity
at operating wavelength
Electronic
control
Accuracy - Jitter
per revolution in parts per million
or time
