Optics: measuring and testing – By alignment in lateral direction
Reexamination Certificate
2005-01-11
2005-01-11
Lauchman, Layla (Department: 2877)
Optics: measuring and testing
By alignment in lateral direction
C700S245000, C700S100000, C356S400000
Reexamination Certificate
active
06842246
ABSTRACT:
An alignment system includes a first module having a plurality of emitters and a first receiver configuration located on the face of the first module. A second module has a second plurality of emitters and a second receiver configuration located on the face of the second module. First and second trigger signal generators fire the first and second plurality of the emitters. The generated signals are sensed by at least some of the receivers. A converter arrangement obtain and convert the received signals into digital data representative of the readings received by selected receivers. A processing system computes at least one of an absolute six degree offset or a relative six degree offset between the faces. The offset information is then used to achieve a desired alignment between the face of the first module and the face of the second module.
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Duff David G.
Eldershaw Craig
Roufas Kimon D.
Yim Mark H.
Zhang Ying
Fay Sharpe Fagan Minnich & McKee LLP
Lauchman Layla
Xerox Corporation
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