jcn@cis.ohio-state.edu (James C. Nugen) (10/01/90)
Hello VR hackers!
I have been working on a homebrew VR system, and have some info
from my research others may be intereseted in.
The following is from some older Polhemus info I had:
Polhemus, Inc.
P.O. Box 560
1 Hercules Drive
Colchester, VT 05546
802-655-3159
802-655-1439 (FAX)
3SPACE Isotrak(R) $ 3,145
Tracks a single sensor, can be used as a 3D mouse.
3SPACE Tracker $11,000
Tracks multiple sensors, good for Eyephone, DataGlove, etc.
3SPACE Digitizer $13,900
Tracks sensor mounted in a stylus for digitizing objects.
And for you hackers who want figure out how it works,
look up the following:
Number: 3,983,474
Title: Tracking and Determining Orientation of Object using
Coordinate Transformation Means, System and Process
Inventor: Jack Kulpers
Assignee: Polhemus Navigation Sciences, Inc.
Date: Sept. 28, 1976
Number: 4,017,858
Title: Apparatus for Generating a Nutating Electromagnetic Field
Inventor: Jack Kulpers
Assignee: Polhemus Navigation Sciences, Inc.
Date: Apr. 12, 1977
I believe there was one other patent related to the ones above, but
I didn't get the information for it.
I originally got the patent info with thoughts of cloning the tracker in
mind. But the more I read about it and all the complaints researchers
in the VR field had about it, I decided to use a different approach.
I have a paper that describes a LED/optical based tracking system, but
I can't find it at the moment. I post more later!
James Nugen
jcn@jcnpc.UUCP