Lighting system, controller and lighting method
First Claim
Patent Images
1. A lighting system comprising:
- a first lighting unit for providing general lighting to a first area;
a second lighting unit for providing directed lighting to a smaller second area within the first area;
a sensor arrangement for detecting an outdoor daylight intensity and/or color characteristic; and
a controller for controlling the first and second lighting units in dependence on the sensor arrangement output,wherein the controller is adapted to apply a predetermined relationship between the general lighting in the first area and the directed lighting in the second area to maintain a light intensity contrast between the general lighting and the directed lighting when the outdoor daylight intensity is sensed and/or to maintain a color difference between the general lighting and the directed lighting when the outdoor daylight color characteristic is sensed.
2 Assignments
0 Petitions
Accused Products
Abstract
A lighting system has a first lighting unit for providing general lighting and a second lighting unit for providing directed lighting. The lighting units are controlled based on sensed light conditions, in order to maintain an intensity and/or color contrast between the general lighting and the directed lighting.
-
Citations
11 Claims
-
1. A lighting system comprising:
-
a first lighting unit for providing general lighting to a first area; a second lighting unit for providing directed lighting to a smaller second area within the first area; a sensor arrangement for detecting an outdoor daylight intensity and/or color characteristic; and a controller for controlling the first and second lighting units in dependence on the sensor arrangement output, wherein the controller is adapted to apply a predetermined relationship between the general lighting in the first area and the directed lighting in the second area to maintain a light intensity contrast between the general lighting and the directed lighting when the outdoor daylight intensity is sensed and/or to maintain a color difference between the general lighting and the directed lighting when the outdoor daylight color characteristic is sensed. - View Dependent Claims (2, 3, 4, 5, 6, 11)
-
-
7. A lighting method comprising:
-
providing general lighting to a first area via a first lighting unit; providing directed lighting via a second lighting unit to a smaller second area within the first area; detecting an outdoor daylight intensity and/or color characteristic; and controlling the first and second lighting units in dependence on the sensor arrangement output by applying a predetermined relationship between the general lighting in the first area and the directed lighting in the second area to maintain an intensity contrast between the general lighting and the directed lighting when the outdoor daylight intensity is sensed and/or to maintain a color contrast between the general lighting and the directed lighting when the outdoor daylight color characteristic is sensed. - View Dependent Claims (8, 9, 10)
-
Specification