Geometrical instruments – Miscellaneous – Light direction
Reexamination Certificate
2007-12-18
2007-12-18
Smith, R. Alexander (Department: 2859)
Geometrical instruments
Miscellaneous
Light direction
C033S0010PT
Reexamination Certificate
active
11289861
ABSTRACT:
An angle-measuring arrangement that includes a base body, a code disk, which is rotatable relative to the base body around an axis A and a contact area, which is laid out in such a way that electrical current or electrical signals can be conducted into the angle-measuring arrangement from a further stationary body. The contact area is arranged to be stationary with respect to the base body and has an identical electrical potential at every point of the contact area. The contact area is also configured in such a way that a first point is defined by polar coordinates R and α1, and a second point by polar coordinates R and α2, wherein the first and second points are located on the contact area, and R is a distance of an identical size of the first and second points from the axis A, and α1and α2represent different angles.
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Brinks Hofer Gilson & Lione
Dr. Johannes Heidenhain GmbH
Smith R. Alexander
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