Abstract: An example of a building automation system utilizes intelligent system elements, some of which are lighting devices having light sources, and some of which are utility building control and automation elements. Some utility building control and automation elements include a controllable mechanism for use in control of some aspect of the building other than lighting. Another intelligent system element may include either a user interface component and be configured as a building controller, or include a detector and be configured as a sensor. Each intelligent system element includes a network communication interface, processor, memory and programming to configure the intelligent system element as a lighting device, utility building control and automation element, controller or sensor. At least one of the intelligent lighting devices is configured as a building control and automation system server. Several examples, however, implement the overall control using distributed processing.

Abstract: The disclosed examples relate to various implementations of a micro-light emitting diode upon which is built a controllable variable optic to provide a chip-scale light emitting device. An example of the controllable variable optic described herein is a controllable electrowetting structure having a leak-proof sealed cell with a first fluid having a first index of refraction and a second fluid having a second index of refraction. The controllable electrowetting structure may be integrally formed on or in a substrate or semiconductor material associated with the micro-light emitting diode in alignment with one or more of the light emitting diodes of the micro-LED device to provide a controllable lighting distribution.

Abstract: A modulated passive optical lighting device includes a passive element, such as a window, a sun-room roof, or a skylight. The device also has an optical modulator associated with or incorporated in the device, to modulate light supplied to an interior space to carry data.

Abstract: Disclosed are examples of optical/electrical devices including a variable TIR lens assembly having a transducer, an optical lens and an electrowetting cell coupled to an exterior wall of the lens. The electrowetting cell contains two immiscible liquids having different optical and electrical properties. One liquid has a high index of refraction, and the other liquid has a low index of refraction. At least one liquid is electrically conductive. A signal causes the high index of refraction and the low index of refraction liquids to assume various positions within the electrowetting cell along the exterior wall. The properties of the optical lens, e.g. its total internal reflectivity, change depending upon the position of the respective liquids along the exterior wall. The light characteristics of the assembly change to produce a light beam over a range of light beam outputs or a field of view over a range of fields of view.

Abstract: Disclosed are examples of optical/electrical devices including a variable TIR lens assembly having a transducer, an optical lens and an electrowetting cell coupled to an exterior wall of the lens. The electrowetting cell contains two immiscible liquids having different optical and electrical properties. One liquid has a high index of refraction, and the other liquid has a low index of refraction. At least one liquid is electrically conductive. A signal causes the high index of refraction and the low index of refraction liquids to assume various positions within the electrowetting cell along the exterior wall. The properties of the optical lens, e.g. its total internal reflectivity, change depending upon the position of the respective liquids along the exterior wall. The light detection characteristics of the assembly change to receive an input light beam over a range of inputs or over a range of fields of view.

Abstract: An example of a building automation system utilizes intelligent system elements, some of which are lighting devices having light sources, and some of which are utility building control and automation elements. Some utility building control and automation elements include a controllable mechanism for use in control of some aspect of the building other than lighting. Another intelligent system element may include either a user interface component and be configured as a building controller, or include a detector and be configured as a sensor. Each intelligent system element includes a network communication interface, processor, memory and programming to configure the intelligent system element as a lighting device, utility building control and automation element, controller or sensor. At least one of the intelligent lighting devices is configured as a building control and automation system server. Several examples, however, implement the overall control using distributed processing.

Abstract: A lighting device utilizes physical or virtual separation of elements within the lighting device to isolate a first portion of data for delivery to a first data network from a second portion of data for delivery to a second data network. The first portion of data relates to a first signal generated responsive to a first sensed condition. The second portion of data may relate to the first signal or to a second signal generated responsive to the first sensed condition or a second sensed condition. The lighting device utilizes a first communication interface to deliver the first portion of data to the first data network and a second communication interface to deliver the second portion of data to the second data network.

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 system with a machine and a lighting device. The machine includes an image capture device and a machine vision processing system configured to detect a characteristic of a subject in a space for an operation of the machine. The lighting device includes a first light source for generating light to illuminate the space, and a second light source for generating light of a particular wavelength to support detection of the characteristic of the subject via the machine vision processing system. The light of the particular wavelength is output at a sufficient intensity reasonably expected to produce a particular emission from the subject detectable via the image capture device different from an emission produced by exposure of the subject to the light for illumination of the space. The first and second light sources are integrated into the lighting device.

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: Examples of security lighting routines are tailored to disrupt visual perception and/or acuity so as to significantly reduce the ability of a person or persons, who has breached security, to function within a secured space. A routine triggered in response to a security breach may include a flash at a relatively high intensity, some number of times brighter than normal illumination for the space. Some examples of routines include a warning light and/or a pre-flash light emission such as dim lighting or a flicker, to effectively prepare the person in the space for maximum effectiveness of the flash. Other examples of the routines may also include a post-flash sequence of multiple color light emissions, such as alternating emissions in sequence of pulses of different colors of light using emission and/or off time parameters that vary in an irregular manner.

Abstract: A lighting device utilizes physical or virtual separation of elements within the lighting device to isolate a first portion of data for delivery to a first data network from a second portion of data for delivery to a second data network. The first portion of data relates to a first signal generated responsive to a first sensed condition. The second portion of data may relate to the first signal or to a second signal generated responsive to the first sensed condition or a second sensed condition. The lighting device utilizes a first communication interface to deliver the first portion of data to the first data network and a second communication interface to deliver the second portion of data to the second data network.

Abstract: One or more controlled environmental conditions have a characteristic thereof that varies over time at least in part in accordance with a chaotic function. Variable control, for example, may control one or more characteristics of visible lighting of the environmentally controlled space. Examples of lighting characteristics that may be controlled in such a manner include spectral content, intensity, color temperature, chromaticity difference or Delta_uv, and polarization. In addition or instead, one or more characteristics of the atmosphere in the controlled environment may be controlled based on a chaotic function. Examples of atmospheric characteristics that may be controlled in such a manner include temperature, humidity, air pressure, ionization, electromagnetic fields, precipitation, visibility, wind, smell and chemical composition. A sound system may also provide a chaotic component to the environment in the environmentally controlled space.

Abstract: A tube lamp has a tubular portion that serves both as a light guide for energy from a solid state source and as a container for a material bearing a nanophosphor that is pumped by the energy from the source as the energy traverses the light guide. However, the tubular portion of the light guide also allows emission of light produced by the phosphor when excited. The material with the nanophosphor dispersed therein may appear either clear or translucent when the lamp is off and the nanophosphor is not excited by energy from the source.

Abstract: A collection of defining features of an object uniquely identify the object. The defining features individually and the collection as a whole are humanly imperceptible. Various uniquely identifiable objects are mapped within a space based on corresponding collections of defining objects and known locations. Location information for the uniquely identifiable object is obtained by a mobile device after identifying the object based on the collection of defining features. Location of the mobile device is estimated based on obtained location information of one or more uniquely identifiable objects.

Abstract: An identification marking is incorporated into a light fixture to provide a uniquely identifiable light fixture. The identification marking is humanly imperceptible. Location information for the uniquely identifiable light fixture is obtained by a mobile device after identifying the light fixture based on the identification marking. Location of the mobile device is estimated based on the obtained location information of the uniquely identifiable light fixture.

Abstract: Defining features of a light fixture collectively form a light fixture fingerprint and uniquely identify the light fixture. The light fixture fingerprint is humanly imperceptible. Location information for the uniquely identifiable light fixture is obtained by a mobile device after identifying the light fixture based on the light fixture fingerprint. Location of the mobile device is estimated based on the obtained location information of the uniquely identifiable light fixture.

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. Responsive to user input, sensed activity, and/or acquired information, the source(s) are controlled by the controller in accordance with a lighting control function which may be modified based on learning by a device or system including the controller.

Abstract: A system with a machine and a lighting device. The machine includes an image capture device and a machine vision processing system configured to detect a characteristic of a subject in a space for an operation of the machine. The lighting device includes a first light source for generating light to illuminate the space, and a second light source for generating light of a particular wavelength to support detection of the characteristic of the subject via the machine vision processing system. The light of the particular wavelength is output at a sufficient intensity reasonably expected to produce a particular emission from the subject detectable via the image capture device different from an emission produced by exposure of the subject to the light for illumination of the space. The first and second light sources are integrated into the lighting device.

Abstract: A lighting system uses a multi-pixel lighting matrix, for example, having an n by m pixel matrix of light emitters, to provide illumination from a ceiling or wall. Instead of using an actual image or video, which may be distracting, the examples in this case manipulate a frequency domain representation, for example, in Fourier transform space. The representation is transformed to real time image space, to drive the matrix of the lighting device. Manipulation in the frequency domain can maintain image characteristics suitable to an intended illumination application yet produce an output illumination image on the matrix that is less obviously an image of an object and less likely to draw unnecessary attention from an occupant of the illuminated space.