Metal halide lightbulb strobe system
AssigneeAmglo Kemlite Laboratories, Inc.
InventorsJames H. Hyland, John E. Powell
Life of this patent
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Abstract
The system contains a quartz arc tube surrounding a gas tight envelope containing mercury, a metal halide, a rare earth gas and a pair of end to end spaced apart tungsten electrodes attached at a distal end to a molybdenum foil seal. A circuit is provided to generate an initial ignition voltage of 30,000 volts and thereafter, a circuit of 100-2,000 watts with a timer to automatically break and reconnect the circuit to provide a strobe light. A single driver actuates multiple lamps.
Claims15
A high intensity discharge metal halide strobe emitting lamp comprising:
- a quartz or fused silica arc tube surrounding a gas tight envelope containing mercury, a metal halide, a rare earth gas or nitrogen and a pair of end to end spaced apart tungsten electrodes, having a diameter of 0.002 to 0.005 inches;
- the arc tube hermetically sealed within a borosilicate glass envelope;
- a proximal end of each tungsten electrode spaced apart 4 to 12 mm;
- a distal end of each tungsten electrode attached to a molybdenum foil seal;
- the strobe emitting lamp adapted to receive an ignition charge of at least 30,000 volts at each on portion of an on and off cycle;
- and
- a wattage of 100-2000 watts during the on portion of the cycle to provide a strobe emitting light.
A method for generating a strobe emitting light comprising:
- (a) providing a quartz or fused silica arc tube surrounding a gas tight envelope containing mercury, a metal halide, a rare earth gas or nitrogen and a pair of end to end spaced apart tungsten electrodes;
- (b) hermetically sealing the arc tube within a borosilicate glass envelope;
- (c) attaching a distal end of each of the pair of tungsten electrodes to a molybdenum foil seal;
- (d) providing an electrical circuit with an on and off continuous cycle, the circuit generating an ignition charge of at least 30,000 volts each time the circuit turns on;
- and
- (e) continuing with an on and off break in the circuit employing a wattage of 100-2,000 watts when the circuit is on to provide a strobe emitting light.
A method for generating a strobe emitting light from multiple high intensity metal halide lamps comprising:
- (a) providing each of the multiple lamps in a quartz arc tube surrounding a gas tight envelope containing mercury, a metal halide, a rare earth gas and a pair of proximal end to end spaced apart tungsten electrodes;
- (b) attaching a distal end of each of the pair of tungsten electrodes to a molybdenum foil seal;
- (c) providing an electrical circuit to generate an ignition with at least 30,000 volts each time the circuit turns on;
- (d) providing a driver to actuate the multiple lamps;
- and
- (e) providing an available wattage of 100-2,000 watts each time the circuit turns on.
Dependencies are inferred from the claim text.