System and method for arc lamp power control
First Claim
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1. An arc lamp system comprising:
- a) an arc lamp, having a life span;
b) a power supply, electrically coupled to the arc lamp and configured to provide power thereto; and
c) a power control servo, coupled to the power supply, configured to cause the power supply to provide lower power to the arc lamp at a beginning of the life span, and to provide greater power to the arc lamp toward an end of the life span.
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Abstract
An arc lamp system includes an arc lamp, having a life span, a power supply, and a power control servo. The power supply is electrically coupled to the arc lamp and configured to provide power thereto, and the power control servo is coupled to the power supply, and configured to cause the power supply to provide lower power to the arc lamp at a beginning of the life span, and to provide greater power to the arc lamp toward an end of the life span.
24 Citations
20 Claims
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1. An arc lamp system comprising:
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a) an arc lamp, having a life span;
b) a power supply, electrically coupled to the arc lamp and configured to provide power thereto; and
c) a power control servo, coupled to the power supply, configured to cause the power supply to provide lower power to the arc lamp at a beginning of the life span, and to provide greater power to the arc lamp toward an end of the life span. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method for powering an arc lamp having a lamp life span, comprising the steps of:
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a) reducing power to the arc lamp at a beginning of the lamp life span; and
b) increasing power to the arc lamp toward an end of the life span of the arc lamp. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A method for increasing a life span of an arc lamp, comprising the steps of:
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a) actuating the arc lamp;
b) detecting an intensity of light output of the arc lamp;
c) comparing the detected lamp light output with a lamp intensity function representing a statistically expected lamp output associated with a current age of the arc lamp;
d) adjusting power to the arc lamp to cause the lamp to provide light output at a level closer to a statistically expected average intensity level for the life span of the arc lamp.
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Specification