Optics: measuring and testing – Position or displacement
Reexamination Certificate
2006-04-25
2006-04-25
Toatley, Gregory J. (Department: 2877)
Optics: measuring and testing
Position or displacement
C356S003050, C356S003060, C250S221000, C250S341700
Reexamination Certificate
active
07034950
ABSTRACT:
The laser grid (1) permits a single-sided installation in order to record a person or object in the monitoring area. The grid operates using punctiform sensor units (3), each including at least one laser diode and two photosensitive pixels. The sensor units are arranged in a line in a housing (2).
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Mengel Peter
Waschke Holger
Nguyen Sang H.
Siemens Aktiengesellschaft
Toatley Gregory J.
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