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US 12,535,202 B2Granted
Lighting device, lighting control method, and recording medium
AssigneePanasonic Intellectual Property Management Co., Ltd.
InventorsShintaro Hayashi, Kenta Watanabe
Life of this patent
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Abstract
A lighting device includes: a plurality of light sources that illuminate in all directions; a first detector that detects an installation orientation of the lighting device; and a controller that changes a light-emission pattern of each of the plurality of light sources according to the installation orientation of the lighting device detected by the first detector.
Claims7
A lighting device comprising:
- a plurality of light sources that illuminate in all directions;
- a first detector that detects an installation orientation of the lighting device;
- a controller that changes a light-emission pattern of each of the plurality of light sources according to the installation orientation of the lighting device detected by the first detector;
- and
- a second detector that detects a rotational acceleration rate of the lighting device, wherein the controller:
- estimates an amount of change from a light-emission pattern when the lighting device emits light in a first orientation to a light-emission pattern when the lighting device emits light in a second orientation different from the first orientation, according to the rotational acceleration rate, and
- controls the light-emission pattern of each of the plurality of light sources based on the amount of change.
4 more elements
A lighting control method comprising:
- detecting an installation orientation of the lighting device;
- changing a light-emission pattern of each of a plurality of light sources according to the installation orientation, the plurality of light sources illuminating in all directions;
- controlling each of the plurality of light sources to cause a light-emission pattern when the lighting device emits light in a first orientation and a light-emission pattern when the lighting device emits light in a second orientation to be maintained as a same light-emission pattern, the second orientation being different from the first orientation;
- detecting a rotational acceleration rate of the lighting device;
- estimating an amount of change from a light-emission pattern when the lighting device emits light in a first orientation to a light-emission pattern when the lighting device emits light in a second orientation different from the first orientation, according to the rotational acceleration rate, and
- controlling the light-emission pattern of each of the plurality of light sources based on the amount of change.
3 more elements
Dependencies are inferred from the claim text.