Illumination sources are turned ON and turned OFF in response to detected levels of illumination in an ambient environment reaching respective thresholds, which may be user set. The detection of these turn ON and turn OFF events is verified, for instance against expected events or conditions for the particular location, date and/or time. An alert or log entry may be generated if a detected event or condition appears to be invalid. For instance, if an amount of illumination in the environment is different than predicted by a threshold amount or if a time that the event occurs or is detected is different than expected or predicted by more than a threshold amount. A level of illumination may be decreased to some non-zero level after a specified time after turn ON, and increased at some specified time before turn OFF. Use of information from external sources (e.g., satellites, cell towers) may allow times to be using local time, including daylight savings if applicable.

Apparatus and method of energy efficient illumination using received signals

An illumination system and methods to control a light source are provided. An illumination system includes a light source, a two-dimensional non-Passive Infrared (non-PIR) imager, and a controller. The light source provides at least two levels of illumination. The non-PIR imager images an area and to produce image data representative of images across at least part of a visible portion of an electromagnetic spectrum. The controller is communicatively coupled to receive the image data from the non-PIR imager and process the received image data to detect at least one ambient environmental characteristic of the area in the part of the visible portion of the electromagnetic spectrum, where the ambient environmental characteristic is indicative of a presence or imminent presence of a body in the area. The controller is also coupled to control operation of the light source based on, at least in part, detection of the ambient characteristic of the environment.

Long-range motion detection for illumination control

Apparatus and methods to regulate an input power applied to a plurality of light emitters are provided. A regulator device includes a plurality of switches and a control circuit that controls the plurality of switches. The plurality of switches selectively couple respective strings of the light emitters in series to the input power to emit light when deactivated. The control circuit may deactivate a number of the switches to couple the respective light emitters to the input power in response to a sensed operational parameter of the input power. The control circuit may adjust the number of the switches deactivated in response to a change in the sensed operational parameter of the input power. A number of the light emitters may be coupled to the input power regardless of the sensed operational parameter of the input power.

Electronic control to regulate power for solid-state lighting and methods thereof

An illumination system and methods to control a light source are provided. An illumination system includes a light source, a two-dimensional non-Passive Infrared (non-PIR) imager, and a controller. The light source may provide at least two levels of illumination. The non-PIR imager images an area and to produce image data representative of images across at least part of a visible portion of an electromagnetic spectrum. The controller is communicatively coupled to receive the image data from the non-PIR imager and process the received image data to detect at least one object in the area of a defined type of object. The controller is also coupled to control operation of the light source based on, at least in part, detection of the ambient characteristic of the environment. Alternatively, one or more components of a system may be used to monitor traffic, with or without active illumination.

Systems and methods that employ object recognition

A solid-state lighting device has user-engageable actuator physically manipulable by a user and accessible from an exterior of the device to adjust an amount of light output. The user-engageable actuator may take the form of a knob, slider, lever, or other manipulable surface or structure. The user-engageable actuator may extend partially or fully from a housing, or alternatively be recessed or otherwise within the housing with access provided via an aperture, slot or opening. Access may be directly by the user (e.g., finger) or via a tool (e.g., screw driver, Allen wrench, socket) manipulated by the user. The actuator may form part of an adjustment component (e.g., potentiometer, rheostat) which supplies an adjustable output to a drive circuit or electronics. The adjustment component may be electrically coupled to either a primary or secondary side of a transformer, which forms part of a power converter (e.g., flyback).

Adjustable output solid-state lighting device

The present invention relates to a lighting device (1) suitable for identifying and marking traffic surfaces of airports, comprising at least one semiconductor luminous element (2) and an electronic control circuit that can be connected to an electrical alternating current supply grid for controlling the operation of the at least one semiconductor luminous element (2), wherein the control circuit comprises a rectifier (5) that can be connected to the electrical alternating current supply grid without a transformer, and an internal power supply device (6) connected to the rectifier (5) for supplying a direct electrical current to the at least one semiconductor luminous element (2), wherein the internal power supply device (3) comprises electronic reactive power compensation means, by means of which the voltage and current can be maintained in phase for all operating modes of the lighting device (1).

Lighting device for identifying and marking traffic areas of airports

The vehicle headlamp has an elliptical reflector with a light source at its first focal point and a collection lens at its second focal point, a rotatable shaft (5) forming light-dark boundaries via two opposing edges and an arrangement for operating and locking a stop (2) in two opposing operating positions with an operating element (7) fixed to the shaft with two stops in the operating positions of the stop and at least one latching element (9).

Vehicle headlamp, especially for motor vehicles, has arrangement for operating and locking stop in two opposing operating positions with operating element fixed to shaft with two stops in operating positions of stop, latching element(s)

A lightweight and cost effective cable loom for a vehicle lighting system has a main section (3) with the cables bonded together by plastic or by plastic foam and fitted with connectors (2, 5) to clip into the vehicle as one module. Side sections (6) of the loom lead to side connectors. A main connector (2) connects to all the cables while lateral connectors (5) connect to selected cables. The side connections are rigidly connected to the main cable loom (3).

Lighting system for vehicle has a cable loom with cables bonded by plastic

The device has a light module (3) mounted on a holder part (1) and able to be pivoted about horizontal and vertical axes and a remotely operated actuator (6,16) each for vertical beam width regulation and horizontal turn light regulation. Both actuators are connected to a controller (10) with a non-volatile memory (11) for storing a setting value defining the basic setting for adjustment of the light module to the basic setting.

Headlamp for vehicle

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Lighting device for identifying and marking traffic areas of airports

Vehicle headlamp, especially for motor vehicles, has arrangement for operating and locking stop in two opposing operating positions with operating element fixed to shaft with two stops in operating positions of stop, latching element(s)

Lighting system for vehicle has a cable loom with cables bonded by plastic

Headlamp for vehicle