Abstract: Methods and systems for controlling lighting fixtures independently with image sensors. In an embodiment, a luminaire includes a controller, an image sensor and wide-angle lens component, and a light source. The controller receives detection signal data from the image sensor and wide-angle lens component when a user is within a detection area associated with a view angle of the wide angle lens, and then determines the position of the user. The controller then controls the illuminance of the light source based on the position of the user. In particular, illuminance is increased as the user approaches a center portion of the detection area, and decreased as the user moves away from the center portion.

Abstract: Methods and systems for controlling lighting fixtures independently with image sensors. In an embodiment, a luminaire includes a controller, an image sensor and wide-angle lens component, and a light source. The controller receives detection signal data from the image sensor and wide-angle lens component when a user is within a detection area associated with a view angle of the wide angle lens, and then determines the position of the user. The controller then controls the illuminance of the light source based on the position of the user. In particular, illuminance is increased as the user approaches a center portion of the detection area, and decreased as the user moves away from the center portion.

Abstract: A lamp driving module for a gas-discharge lamp includes a lamp ballast module, and a lamp power control module coupled to the lamp ballast module. The lamp power control module is configured to drive the lamp in a DC mode during a run-up state and in an AC mode when not in the run-up state. The lamp power control module is configured to heat the amalgam in the lamp more quickly, accelerate migration of the released mercury vapor throughout the lamp discharge tube, and allow the lamp to get brighter faster.