Patent ID: 9485840
Filing Date: 2016-11-01
CPC Classification: H05B,Y02B

Claim Text:
1. A controller comprising: an output for controlling one or more lighting device to illuminate an environment; an input for receiving motion detection signals from a non-optical sensor and from a light sensor; and a control module configured to: use the non-optical sensor to perform motion detection; in response to receiving a signal indicative of sensed motion from the non-optical sensor whilst the one or more lighting device is operating in a first operating state in which the one or more lighting device illuminates the environment according to a first illumination level or emits no light, control the one or more lighting device to operate in a second operating state in which the one or more lighting device illuminates the environment according to a second illumination level, the second illumination level being higher than the first illumination level; use the light sensor to perform motion detection whilst the one or more lighting device is operating in the second operating state; if no motion is detected by the light sensor, control the one or more lighting device to operate in the first operating state or a further operating state in which the one or more lighting device illuminates the environment according to an illumination level lower than the second illumination level; and in response to receiving a signal indicative of sensed motion from the light sensor, control the one or more lighting device to operate in a third operating state in which the one or more lighting device illuminates the environment according to a third illumination level, the third illumination level being higher than the second illumination level.