Abstract:
Solid-state lamps having an electronically adjustable light beam distribution are disclosed. In accordance with some embodiments, a lamp configured as described herein includes a plurality of solid-state emitters (addressable individually and/or in groupings) mounted over a non-planar interior surface of the lamp. The interior mounting surface can be concave or convex, as desired, and may be of hemispherical or hyper-hemispherical geometry, among others, in accordance with some example embodiments. In some embodiments, the heat sink of the lamp may be configured to provide the interior mounting surface, whereas in some other embodiments, a separate mounting interface, such as a parabolic aluminized reflector (PAR), a bulged reflector (BR), or a multi-faceted reflector (MR), may be included to such end. Also, the lamp may include one or more focusing optics for modifying its output. In some cases, a lamp provided as described herein may be configured for retrofitting existing lighting structures.
Abstract:
A wireless mounted control module includes an antenna portion, which encloses at least in part an antenna, and a holder portion. The holder portion allows the movement of the antenna portion from an installed position, where the top of the antenna portion is flush and/or substantially flush with the exterior surface of a device or location in which the module is installed, to an extended position, where an upper section of the antenna portion (including the top of the antenna portion) extends beyond the exterior surface.
Abstract:
Techniques are disclosed for providing proper raster line alignment of a camera or other light-sensing device of a receiver device relative to a transmitting light-based communication (LCom)-enabled luminaire to establish reliable LCom there between. In accordance with some embodiments, proper alignment can be provided automatically (e.g., by the receiver device and/or other suitable controller). In accordance with some embodiments, proper alignment can be provided by the user. In some instances in which a user is to be involved in the alignment process, the receiver device may be configured, for example, to instruct or otherwise guide the user in the process of properly aligning the receiver device relative to a given transmitting LCom-enabled luminaire.
Abstract:
Systems and methods for detection of interconnected outputs of a power supply are provided. A first channel of a power supply is activated, such that power is supplied to a first load connected to the first channel. A first load voltage is measured for the first load. A second load voltage is measured for a second load connected to a second channel of the power supply. The second load voltage is compared to the first load voltage to generate an interconnection result. The power supply is shut down when the interconnection result indicates that the second load voltage matches the first load voltage, such that all channels of the power supply do not supply power to any load connected thereto.
Abstract:
An integrated light engine including flexible optics and a flexible light source, and lighting devices including the same, are provided. The integrated light engine includes a flexible light source configured to emit light, and flexible optics coupled to the flexible light source. The flexible optics beam shapes light emitted by the flexible light source. The integrated light engine is capable of entering a set of states, such that a portion of beam shaped light emitted by the integrated light engine in a first state is aimed in a first direction and a portion of beam shaped light emitted by the integrated light engine in a second state is aimed in a second direction. Different combinations of the flexible optics with the flexible light source result in the integrated light engine being able to enter a number of flexed states or being held in a substantially flat, substantially stiff state.
Abstract:
Techniques are disclosed for position-based actions using light-based communication (LCom). LCom signals can be used to encode or otherwise provide data which in turn can be used to help determine the position of a device receiving those LCom signals. Therefore, LCom can be used to facilitate various actions based on, for example, the position of an LCom receiver determined using data received via the LCom signals. There are numerous use cases for position-based actions using LCom, such as security applications, check-in applications, payments based on location, permissions, and access to information that can all be tied to a location. Actions may include temporarily disabling or enabling the LCom receiver hardware or software (such as disabling device cameras in high security areas), providing another security layer as a result of knowing the device position, and using the LCom receiver position as a part of a larger process.
Abstract:
Lighting control techniques and corresponding drivers and ballasts are disclosed. In some embodiments, the driver or ballast receives multiple dimming inputs and has multiple dimming interfaces that produce initial dimming signals or levels. The initial dimming signals are manipulated by a controller to produce a final output dimming signal or level that is based on the dimming signals received and dims the attached light sources accordingly. The manipulations performed by the controller may include various operations, such as comparisons and calculating the product of the initial dimming signals. In some embodiments, the techniques can be applied to light-emitting diode (LED) drivers or ballasts for fluorescent and other discharge light sources and can be used in smart grid and peak power shaping applications.
Abstract:
Systems and methods of Planckian and non-Planckian dimming of solid state light sources are disclosed. For a given first range of correlated color temperature values on the 1931 CIE Chromaticity Diagram, the current through a plurality of solid state light sources is adjusted so that the light output thereby follows the correlated color temperature values relating to the black body curve over that given first range. For a given second range of correlated color temperature values, the current through a plurality of solid state light sources is adjusted so that the light output thereby deviates from black body curve and instead relates to a series of coordinates that tracks a line between the curve and a color point for one of the solid state light sources.
Abstract:
A system for controlling a light source to enhance the appearance of one or more objects within an environment illuminated by the light source. The system includes a tunable white light source to illuminate an object and a camera configured to capture one or more digital images the object and identify attributes of the object, including object color values. The system further includes a light control module configured to determine at least one optimal lighting condition for the light source based, at least in part, on the object attributes, wherein the optimal lighting condition is configured to enhance the appearance of the object illuminated by the light source while maintaining the overall appearance of light within the environment. The light control module is further configured to adjust the spectral composition of the light source based on the optimal lighting condition.
Abstract:
The present disclosure describes the use of a polycyclic polysiloxane polymer for light emitting diodes (LEDs). The polymer is characterized by high flame retardancy, high temperature stability, and low moisture and gas permeability. The polymer is useful as a potting compound for encapsulation of phosphors in LED packages, or as a molding resin for producing optical parts for LED light engines, or as a protective coating applied over the light emitting elements.