Radiant energy – Photocells; circuits and apparatus – Optical or pre-photocell system
Reexamination Certificate
2006-02-07
2006-02-07
Porta, David (Department: 2878)
Radiant energy
Photocells; circuits and apparatus
Optical or pre-photocell system
C250S238000, C340S602000, C073S029050, C219S522000
Reexamination Certificate
active
06995354
ABSTRACT:
An optoelectronic sensor device for detecting precipitation on an outer surface of a transparent pane. The sensor device includes a beam guide attached to an inner surface of the pane and a circuit board offset from the inner pane surface. A beam transmitter is arranged on the circuit board to transmit, along a transmission beam path, a light beam toward the pane via the beam guide. A beam receiver is arranged on the circuit board to receive, along a reception beam path, a light beam reflected from the outer surface of the pane via the beam guide. A circuit substrate, electrically connected to the circuit board, is arranged parallel to the pane between the pane and the circuit board. An installation space separates the circuit substrate from the inner pane surface. A heating device is arranged on the circuit substrate in an area lying outside of the beam paths.
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Hagen Frank
Levers Jürgen
Weber Thomas
Kushman P.C. Brooks
Leopold Kostal GmbH & Co. KG
Monbleau Davienne
Porta David
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