Illumination device, illumination system, and illumination control method
AssigneesKYOCERA Corporation, Public University Corporation Nara Medical University
InventorsKatsuhiro MITSUI, Hidetaka KATOU, Kenji OBAYASHI
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Abstract
An illumination device includes a light emitter configured to emit illumination light and a controller configured to control the light emitter. The controller controls the illumination light such that a first decrease ratio of melanopic illuminance of illumination light during night-time illumination to melanopic illuminance of illumination light during daytime illumination is higher than a second decrease ratio of illuminance of the illumination light during the night-time illumination to illuminance of the illumination light during the daytime illumination.
Claims15
An illumination device comprising:
- a light emitter configured to emit illumination light;
- and
- a controller configured to control the light emitter,
- wherein the controller controls the illumination light such that a first decrease ratio of a melanopic illuminance of illumination light during night-time illumination to a melanopic illuminance of illumination light during daytime illumination is higher than a second decrease ratio of an illuminance of the illumination light during the night-time illumination to an illuminance of the illumination light during the daytime illumination.
An illumination system comprising a server and an illumination device configured to emit illumination light,
- wherein the server controls the illumination light such that a first decrease ratio of a melanopic illuminance of illumination light during night-time illumination to a melanopic illuminance of illumination light during daytime illumination is higher than a second decrease ratio of an illuminance of the illumination light during the night-time illumination to an illuminance of the illumination light during the daytime illumination.
An illumination control method, comprising:
- controlling, by an illumination device comprising a light emitter configured to emit illumination light, the illumination light emitted by the light emitter such that a first decrease ratio of a melanopic illuminance of illumination light during night-time illumination to a melanopic illuminance of illumination light during daytime illumination is higher than a second decrease ratio of an illuminance of the illumination light during the night-time illumination to an illuminance of the illumination light during the daytime illumination.
Dependencies are inferred from the claim text.