Daylighting for different groups of lighting fixtures
First Claim
1. A lighting fixture associated with a first group of lighting fixtures, which is located in the same environment as a second group of lighting fixtures, the lighting fixture comprising:
- a light source configured to emit light;
an ambient light sensor; and
circuitry configured to;
determine a reference output level for light emitted from the first group of lighting fixtures;
determine an actual lighting contribution for light emitted from the second group of lighting fixtures;
reduce the reference output level by the actual lighting contribution to provide an adjusted reference level that is a function of a target level; and
monitor the ambient light sensor and regulate a light output level such that a measurement from the ambient light sensor corresponds to the target level.
3 Assignments
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Accused Products
Abstract
Assume that the two groups of lighting fixtures are located in the same general area, employ daylighting, and provide light that can be sensed by each other. A first group will determine an actual lighting contribution provided by the second group and remove the actual lighting contribution provided by the second group when making daylighting decisions. As such, when the dimming level of the second group is changed, the first group will effectively ignore changes in the dimming level of the second group when making daylighting decisions, and vice versa. A group of lighting fixtures may include one or more lighting fixtures.
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Citations
21 Claims
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1. A lighting fixture associated with a first group of lighting fixtures, which is located in the same environment as a second group of lighting fixtures, the lighting fixture comprising:
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a light source configured to emit light; an ambient light sensor; and circuitry configured to; determine a reference output level for light emitted from the first group of lighting fixtures; determine an actual lighting contribution for light emitted from the second group of lighting fixtures; reduce the reference output level by the actual lighting contribution to provide an adjusted reference level that is a function of a target level; and monitor the ambient light sensor and regulate a light output level such that a measurement from the ambient light sensor corresponds to the target level. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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Specification