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US 2018/0149347 A1Published application
Improved lamp color temperature stability in an automated luminaire
AssigneeRobe Lighting
InventorsPavel JURIK, Josef VALCHAR
Life of this patent
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Abstract
Described is dynamic control of the temperature of the envelope of an HID lamp in order to stabilize the output color temperature of the lamp. As the lamp power is changed, or environmental factors alter the lamp envelope temperature, the system senses these changes and adjusts the lamp cooling systems so as to move the lamp envelope temperature back to the desired point.
Claims9
An automated luminaire comprising:
- a light source that generates different color temperature light based on variance in its operating conditions;
- an enclosure for the light source with fan(s) which gate the flow of air into and out of the enclosure;
- temperature sensor(s) which monitor temperatures that effect the temperature inside the enclosure;
- controller that monitors power to the lamp as a function of time historically and prospectively based on a preprogrammed light show and operating temperature and controls airflow to maintain operating temperature given power applied to the lamp to optimize a constant lamp output color temperature as a function of time.
1 more element
An automated luminaire comprising:
- a light source that generates different color temperature light based on variance in its operating conditions;
- an enclosure for the light source with fan(s) which gate the flow of air into and out of the enclosure;
- temperature sensor(s) which monitor temperatures that effect the temperature inside the enclosure;
- controller that monitors power to the lamp and operating temperature and controls airflow to maintain operating temperature given power applied to the lamp so that the lamp output color temperature is maintained as constant.
1 more element
Dependencies are inferred from the claim text.