Electric lamp and discharge devices: systems – With radiant energy sensitive control means – Electric switch controlled by the radiant energy responsive...
Reexamination Certificate
2005-11-29
2005-11-29
Vo, Tuyet Thi (Department: 2821)
Electric lamp and discharge devices: systems
With radiant energy sensitive control means
Electric switch controlled by the radiant energy responsive...
C315SDIG002, C315S291000, C315S312000
Reexamination Certificate
active
06969955
ABSTRACT:
An apparatus and method for providing dimming control of an electronic ballast circuit that includes a electronic ballast circuit that is electrically connected to a plurality of input voltage terminals that can receive alternating current and the electronic ballast circuit is electrically connected to the plurality of fluorescent lamp terminals. There is at least one light sensor that is electrically connected to the electronic ballast circuit so that the electrical power applied at the plurality of fluorescent lamp terminals can be proportionally modified in relationship to the ambient light received by the at least one light sensor. Also, there is a plurality of switches that are electrically connected in one-to-one corresponding relationship to a plurality of resistive loads so that the electrical power applied at the plurality of fluorescent lamp terminals can be set at a plurality of predetermined lighting levels.
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Erickson James A.
Gruenewald Mark B.
Hirschbach Kipton P.
Axis Technologies, Inc.
Blackwell Sanders Peper Martin LLP
Vo Tuyet Thi
LandOfFree
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