Computer graphics processing and selective visual display system – Image superposition by optical means
Reexamination Certificate
2000-07-25
2002-05-28
Saras, Steven (Department: 2675)
Computer graphics processing and selective visual display system
Image superposition by optical means
C345S008000, C345S156000, C361S689000, C434S043000
Reexamination Certificate
active
06396462
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of Invention
This invention relates to the art of mechanical structures whose deformation can be easily measured.
2. Description of the Prior Art
In the field of virtual reality, displays are mounted on structures which can be manipulated by a user. The motion of the display is measured and is used to control the user's view point in a computer generated world. Such devices are exemplified by the art described in U.S. Pat. No. 5,436,638. Making a suitable structure for mounting a display on is a challenge, one desires that the display be movable with little force. It is also desirable that the platform encourages controllable motion which means that the perceived stiffness in the left-right directions be matched with forward-back and that twist also feels similarly stiff. As detailed in U.S. Pat. No. 5,436,638 it is desired that it be possible for the structure to facilitate rotations about a user. This invention provides that flexibility is a way which is easy to sense and measure.
SUMMARY OF THE INVENTION
A structure suitable for holding a display is the object of this invention. The platform is supported by three compliant members. One of these members is attached to a gimbaled mechanism which facilitates the easy measurement of the deflection of the platform as it is moved by the user.
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Bolas Mark
McDowall Ian
Mead, Jr. Russell C.
Awad Amr
Crockett & Crockett
Crockett, Esq. K. David
Fakespace Labs, Inc.
Saras Steven
LandOfFree
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