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> laserBIRD 2
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A precise
optical tracker for
the most demanding tracking
environments. Designed
for head and object
tracking in simulator,
medical and 3D visualization
applications. laserBIRD's
scanner continuously
scans the work space
enabling its sensor
to instantly sense the
laser beams. Signals
are then directed back
to the scanner's DSP
electronics for processing
and output of position
and orientation data
to a host computer.
Click here to download
the product brochure
(PDF).
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Miniaturized
Scanner with Head-mountable
Sensor in Front
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- Head/object tracking in simulators & virtual/augmented reality systems
- Real-time localization
of patients for radiological
targeting
- Instrument tracking in surgical applications
- Guidance & control of robotic devices
- Biomechanical measurement and feedback
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| Scanning
laser beam technology |
- No metallic distortion,
drift, noise or acoustic
interference. Ambient light
resistant. Works equally
well on fixed and motion-based
platforms.
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| Sub-degree
and millimeter accuracy |
- Best available 6 DOF precision.
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| Unique
prediction capability |
- Customizable prediction
parameters. Only predicts
motion along axis of interest.
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| Measurement
rate of 240 meas/sec |
- Instantaneous tracking
solution without discernable
lag.
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| Prediction
to 50ms |
- Tight sync of head locaiton
with image generation. Helps
alleviate "“motion
sickness” in virtual environments.
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| TECHNICAL |
| Degrees
of Freedom: |
6
(Position and Orientation) |
| Scanner
Field of View: |
±
50° horizontal
52° vertical |
| Measurement
Rate |
240
Hz |
| Lag |
Tracking
response: 7.17 ms; All filters
off
Step Response: 11.34 ms. |
| RS-232 Reporting
Time |
1.0 ms; 115.2
k Baud, Position and Euler Angles |
| Prediction
Capability |
Yes
- customizable up to 50 ms |
| Note:
Specifications with sensor between
43cm and 106cm from scanner
unit. |
| Sensor
Position |
| Operating
Distance |
0.15
m to 1.83 m |
| Accuracy
@ 1m |
0.7
mm RMS; AVG filter on |
| Static
Resolution @1m |
0.1
mm |
| Sensor
Orientation |
| Angle
Range |
Sensor
directly in front of scanner:
± 85° Azimuth, Elevation, ±
180° Roll |
| Accuracy
@ 1m |
0.5°
RMS; AVG filter on |
| Static
Resolution @ 1m |
0.05°
Sensor Position |
| Physical |
| Scanner
Dimensions (L x W x H) |
32
cm x 9 cm x 4 cm |
| Scanner
Weight |
1.53
kg |
| Sensor
Dimensions (L x W x H) |
10
cm x 9 cm x 1 cm |
| Sensor
Weight |
40
g |
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Prediction:
laserBIRD predicts position
and orientation data up to
50ms into the future. This
features is designed for use
in simulators exhibiting significant
lag in their image generator.
Flexible prediction
capability:
As with any prediction algorithm,
the more you predict into
the future, the more noise
introduced into the data stream.
laserBIRD's unique prediction
capability allows a user to
select individual prediction
parameters (X, Y, Z, Azimuth,
Elevation, Roll). Prediction
can thus be specified along
a single axis of interest
with minimal data degradation.
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- EMC:
EN 61326-1: 1998; 47 CFR:
Part 15;
Subpart B; Class A limits
- Safety
EN 61010-1: 1995
- Laser Safety
FDA/CDRH: 21 CFR 1040.10-11
Laser Hazard Classification:
Class 1
CE: EN 60825-1
Laser Hazard Classification:
Class 1
Note: laserBIRD is a general-purpose
motion tracker suitable for
many applications. Biomedical
references in this document
are examples of what medical
companies have done with Ascension
trackers after obtaining all
necessary medical certifications.
Ascension trackers are not
certified for use in medicine
without the end user/OEM complying
with all pertinent FDA/CE
regulatory requirements.
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