Abstract:
An example of a lighting system includes intelligent lighting devices, each of which includes a light source, a communication interface and a processor coupled to control the light source. In such a system, at least one of the lighting devices includes a user input sensor to detect user activity related to user inputs without requiring physical contact of the user; and at least one of the lighting devices includes an output component to provide information output to the user. One or more of the processors in the intelligent lighting devices are further configured to process user inputs detected by the user input sensor, control lighting and control output to a user via the output component so as to implement an interactive user interface for the system, for example, to facilitate user control of lighting operations of the system and/or to act as a user interface portal for other services.
Abstract:
The examples relate to various implementations of a software configurable lighting device, installed as a panel, that offers the capability to appear like and emulate a variety of different lighting devices. Emulation includes the appearance of the lighting device as installed in the wall or ceiling, possibly, both when lighting and when not lighting, as well as light output distribution, e.g. direction and/or beam shape.
Abstract:
Disclosed are examples of spectrometer-equipped devices that provide general illumination supplied by artificial or natural light, and that also detect substances in the environment around the device. In some examples, light may be emitted by a spectrometer light source. The spectrometer detects the light from any of a natural light source, artificial general illumination light or light from the spectrometer light source passed, reflected or shifted and regenerated by substances in the air or on a surface in the vicinity of the device. In response, the spectrometer generates signals representative of the spectral power distribution (e.g. intensities of given wavelengths in the optical spectrum) of the detected light. A controller analyzes the spectrometer generated signals and initiates action based on or outputs a report indicating the environmental condition detected by the spectrometer-equipped device.
Abstract:
Disclosed are examples of lighting devices and other devices that are equipped with a cellular transceiver that is configured to communicate using cellular radio frequency spectrum in both a small-scale cellular network and a large-scale cellular communication network. By utilizing a short-range, low-power cellular transceiver setting, a lighting device facilitates communication, within the space in which the lighting device is installed, of messages between the lighting device and other types of user devices. Such an equipped lighting device may be configured to participate in the generation and delivery of different types of messages, such as data, emergency broadcast information, news and other information. Such a lighting device also may be configured to extend the reach of devices within the space in which the equipped lighting devices are located.
Abstract:
Examples relate to a method and implementations of general illumination light emitters, an image display device and an image diffuser in a luminaire. The image display device is configured to output an image having a reduced, or first, pixel image fill factor and, as a result, might appear pixelated. To mitigate the pixelation, the image diffuser has a predetermined image diffusion angle and is a predetermined distance from the image display device. The image diffuser outputs an image having a second image pixel fill factor that is greater than the first image pixel fill factor. The appearance of the outputted image appears to be formed from fuzzy pixels. Characteristics related to the image, device, diffuser, and their arrangement may be optimized to provide the fuzzy pixels. A luminaire may output an image formed of the fuzzy pixels and general illumination lighting to an area.
Abstract:
A device uses gated retro-reflectors to transmit uplink data in a visible light communication (VLC) system. The gated retro-reflector includes a retro-reflector and a gating shutter between the retro-reflector and a VLC light source. A light sensor receives VLC data at regular intervals in which a light pulse received during one of the intervals represents a first downloaded symbol and absence of a light pulse during another one of the intervals represents a second downloaded symbol. A controller controls the gating shutter to send uplink data from the device responsive to each received VLC light pulse. The controller opens the gating shutter during the reception of a VLC light pulse to upload a first uploaded symbol and closes the gating shutter during the reception of a VLC light pulse to upload a second uploaded symbol.
Abstract:
A lighting unit includes an architectural panel having an overall thickness that is measured between a first surface that is configured to be exposed to light output by the lighting unit and a second surface that is opposite the first surface, and a light fixture embedded in the architectural panel. The light fixture includes a solid state light source, an optic, a power supply and a driver circuit that at least partially embedded in the recess of the panel. The light fixture is configured to output light in an output direction extending out away from the first surface of the panel. The light fixture extends from the first surface of the panel in a direction opposite the output direction by a distance that is less than the overall thickness of the architectural panel.
Abstract:
A lighting device or an apparatus for use with a light source has one or more sensors, intelligence in the form of programmed processors and communication capabilities. Each sensor is configured to monitor one or more conditions external to a lighting device not directly related to operational performance of the respective lighting device. Programming provides a standardized interface to enable processing of sensed conditions from sensors of different types.
Abstract:
At least one controllable source of visible light is configured to illuminate a space to be utilized by one or more occupants. A controller causes the source(s) to emit light in a manner that varies at least one characteristic of visible light emitted into the space over a period of time at least in part in accordance with a chaotic function.
Abstract:
Lighting devices and/or systems offer dynamic control or tuning of color of light. The lighting systems utilize sources, such as solid state sources, to individually pump a number of different phosphors of types having relatively high degrees of color purity. The phosphor emissions, however, are still broader than the traditionally monochromatic color emissions of LEDs. The different phosphors can be independently excited to controllable levels, by individually controlled sources rated for emission of energy of the same spectrum. Adjustment of intensities of electromagnetic energy emitted by the sources independently adjusts levels of excitations of the phosphors selected to emit different colors of relatively high purity and thus the contributions of pure colors to the combined light output, for example, to enables color adjustment of the light output over a wide range of different selectable colors encompassing much of the gamut of visible light.