Ambient lighting for improving sleeping disorders, cognition and/or neurological disorders
AssigneeNational Yang Ming Chiao Tung University
InventorYiing-Mei Liou
Life of this patent
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Abstract
Alight system used in an ambient environment is provided. The light system comprises an emitting device and a controller coupled to the emitting device. The emitting device is configured to provide a light impinging on a subject in the ambient environment. The controller is configured to control the emitting device. The light provided by the emitting device has at least 30% green light. A line extending from the emitting device to the subject and a plane at eye level of the subject in the ambient environment forms an angle of about 45 degrees. The light has a horizontal illuminance of about 2200 lux to about 2800 lux.
Claims18
A light system used in an ambient environment, comprising:
- an emitting device configured to provide a light impinging on a subject in the ambient environment, wherein the emitting device is positioned relative to the subject so that a line extending from the emitting device to the subject and a horizontal plane at a same level as an eye of the subject form an angle of 45 degrees;
- and
- a controller electrically coupled to the emitting device and configured to control the emitting device;
- wherein the light provided by the emitting device has at least 30% green light, and the light has a horizontal illuminance of 2200 lux to 2800 lux and a vertical illuminance of 3600 lux to 4800 lux.
A light system in an ambient environment, comprising:
- an emitting device configured to provide a light into the ambient environment, wherein the emitting device is positioned relative to the subject so that a line extending from the emitting device to the subject and a horizontal plane at a same level as an eye of the subject form an angle of 45 degrees, wherein the light has at least 30% green light;
- and
- a controller electrically connected to the emitting device, wherein the controller comprises:
- a control module configured to control the emitting device;
- a sensing module configured to detect a horizontal illuminance and a vertical illuminance of the light provided by the emitting device, wherein the controller is configured to control the emitting device so that the horizontal illuminance is from 2200 lux to 2800 lux and the vertical illuminance is from 3600 lux to 4800 lux;
- and
- a control interface in communication with the control module.
A method for providing ambient lighting for improving one or more of sleeping quality, circadian rhythms, cognitive function, neurological disorder, depression, emotional status, heart rate variability, sympathetic activity and parasympathetic activity in a subject, comprising:
- providing light into an ambient environment, wherein a ratio of a blue-green light with a wavelength from 450 nm to 580 nm is increased to at least 30%;
- adjusting the light so that a horizontal illuminance of the light is 2200 lux to 2800 lux and a vertical illuminance of the light is 3600 lux to 4800 lux;
- and
- exposing the subject to the light, such that an optical axis of the light and a horizontal plane at a same level as an eye of the subject form an angle of 45 degrees.
Dependencies are inferred from the claim text.