Electric lamp and discharge devices: systems – With cathode or cathode heater supply circuit
Reexamination Certificate
2006-02-21
2006-02-21
Wong, Don (Department: 2821)
Electric lamp and discharge devices: systems
With cathode or cathode heater supply circuit
C315S105000, C315S224000, C315S291000
Reexamination Certificate
active
07002301
ABSTRACT:
Apparatus and methods for measuring cathode fall in fluorescent lamps are disclosed. Together with measurements of cathode temperature, such measurements of cathode fall may inform a determination of cathode heater voltage as a function of discharge current (i.e., a cathode-heating-profile) that avoids both sputtering and excess-evaporation.
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DeMeo Renzo Corrado
Hartfield Mark Alan
Khan Farheen
MacAdam Russell Lawrence
Nachtrieb Robert Thomas
Lie Angela M
Lutron Electronics Co. Inc.
Wong Don
Woodcock & Washburn LLP
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