Communications: electrical – Visual indication – Lighted alphanumeric or character indicator matrix
Reexamination Certificate
2005-05-17
2005-05-17
Trieu, Van T. (Department: 2636)
Communications: electrical
Visual indication
Lighted alphanumeric or character indicator matrix
C340S815500, C340S815570, C340S815680, C340S555000, C250S221000, C250S222100
Reexamination Certificate
active
06894623
ABSTRACT:
A display monitor is provided for a multi-optical-path photoelectric safety apparatus including a plurality of multi-optical-path photoelectric sensor units. The user can determine whether a special function such as blanking is set for each optical path in a group which comprises a plurality of indicator lamps placed in a row along a longitudinal direction. The user can check the light incidence/light block status for each optical path on an indicator lamp group. The display monitor includes the plurality of indicator lamps placed in a row in the longitudinal direction. First and second switches allow the user to select the unit and the optical path to be shown on the two indicator lamp groups.
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Hama Kiyoshi
Inoue Tetsu
Keyence Corporation
Smith Patent Office
Trieu Van T.
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