Lighting device with operation responsive to geospatial position
First Claim
1. A lighting device comprising:
- at least one electrically activated emitter;
at least one element selected from;
(a) a user input element, (b) a signal receiver, and (c) at least one sensor, wherein the at least one element is arranged to receive or provide at least one signal indicative of or permitting derivation of geospatial position; and
a driver module arranged to adjust operation of the at least one electrically activated emitter differently on different days of a year based on the at least one signal and a predefined or user-defined schedule stored in a memory of the lighting device, wherein said adjustment alters spectral content of emissions of the lighting device, and wherein said predefined or user-defined schedule is configured to alter the spectral content of the emissions of the lighting device to compensate for yearly variations in spectral content of natural ambient light.
3 Assignments
0 Petitions
Accused Products
Abstract
A lighting device is arranged to receive or determine information indicative of geospatial location (and optionally additional information such as time, time zone, and/or date) and automatically adjust one or more light output parameters (e.g., luminous flux, color point, color temperature, spectral content, and operating time) based on such information to operate one or more emitters differently on different days of a year. Information indicative of geospatial location may be received or provided by a user input element, a signal receiver, and/or at least one sensor. Brightness and/or spectral content of lighting device emissions may be further adjusted intraday based on sensed ambient conditions, conditions of an illuminated space or surface, information indicative of weather conditions, and/or user inputs.
-
Citations
35 Claims
-
1. A lighting device comprising:
-
at least one electrically activated emitter; at least one element selected from;
(a) a user input element, (b) a signal receiver, and (c) at least one sensor, wherein the at least one element is arranged to receive or provide at least one signal indicative of or permitting derivation of geospatial position; anda driver module arranged to adjust operation of the at least one electrically activated emitter differently on different days of a year based on the at least one signal and a predefined or user-defined schedule stored in a memory of the lighting device, wherein said adjustment alters spectral content of emissions of the lighting device, and wherein said predefined or user-defined schedule is configured to alter the spectral content of the emissions of the lighting device to compensate for yearly variations in spectral content of natural ambient light. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
-
-
13. A lighting system comprising:
-
a plurality of lighting devices comprising a plurality of electrically activated emitters; at least one element selected from;
(a) a user input element, (b) a signal receiver, and (c) at least one sensor, wherein the at least one element is arranged to receive or provide at least one signal indicative of or permitting derivation of geospatial position; andat least one driver module arranged to adjust operation of the plurality of electrically activated emitters differently on different days of a year based on the at least one signal and a predefined or user-defined schedule stored in a memory of the lighting system, wherein said adjustment alters spectral content of emissions of the lighting system, and wherein said predefined or user-defined schedule is configured to alter the spectral content of the emissions of the lighting system to compensate for yearly variations in spectral content of natural ambient light. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
-
-
24. A lighting system comprising:
-
at least one element selected from;
(a) a user input element, (b) a signal receiver, and (c) at least one sensor, wherein the at least one element is arranged to receive or provide at least one first signal indicative of or permitting derivation of geospatial position;a first lighting device comprising at least one first electrically activated emitter, a wireless transmitter arranged to transmit at least one second signal derived from or including at least a portion of the at least one first signal, and a first driver module arranged to adjust operation of the at least one first electrically activated emitter differently on different days of a year based on the at least one first signal and a first predefined or user-defined schedule stored in a memory of the first lighting device, wherein said adjustment of operation of the at least one first electrically activated emitter alters spectral content of emissions of the first lighting device, and wherein said first predefined or user-defined schedule is configured to alter the spectral content of the emissions of the first lighting device to compensate for yearly variations in spectral content of natural ambient light; and a second lighting device comprising at least one second electrically activated emitter, a receiver arranged to receive the at least one second signal from the wireless transmitter, and a second driver module arranged to adjust operation of the at least one second electrically activated emitter differently on different days of a year based on the at least one second signal and a second predefined or user-defined schedule stored in a memory of the second lighting device, wherein said adjustment of operation of the at least one second electrically activated emitter alters spectral content of emissions of the second lighting device, and wherein said second predefined or user-defined schedule is configured to alter the spectral content of the emissions of the second lighting device to compensate for yearly variations in the spectral content of natural ambient light. - View Dependent Claims (25, 26, 27, 28, 29, 30)
-
-
31. A method for operating a lighting device including at least one electrically activated emitter, the method comprising:
-
receiving by the lighting device, or providing to the lighting device, at least one signal indicative of or permitting derivation of geospatial position; establishing a predefined or user-defined schedule configured to adjust operation of the at least one electrically activated emitter differently on different days of a year to compensate for yearly variations in spectral content of natural ambient light based on the at least one signal, wherein said adjustment of operation alters spectral content of emissions of the lighting device; and operating the at least one electrically activated emitter of the lighting device differently on different days of a year according to the predefined or user-defined schedule. - View Dependent Claims (32, 33, 34, 35)
-
Specification