Radiant energy – Invisible radiant energy responsive electric signalling – Infrared responsive
Reexamination Certificate
2007-02-02
2010-11-30
Porta, David P (Department: 2884)
Radiant energy
Invisible radiant energy responsive electric signalling
Infrared responsive
Reexamination Certificate
active
07842925
ABSTRACT:
A radiation source for an optical sensor arrangement has an incandescent lamp being switched by a semiconductor switch. The incandescent lamp emits a broadband light spectrum. The semiconductor switch has a control terminal driven by a control signal to switch a connection of the incandescent lamp to a supply voltage. The semiconductor switch has a first terminal which is connected to the incandescent lamp, and a second terminal which is connected to a reference potential. When the semiconductor switch is in an on state, a current path is formed between the first and second terminals. A capacitor is connected between the control terminal and the first terminal. A first resistor connects the control terminal to the control signal and a second resistor or capacitor connects the control terminal to the reference potential.
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Straub Kuno
Tille Thomas
Barley Snyder LLC
Bayerische Motoren Werke Aktiengesellschaft
Kim Kiho
Porta David P
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