Osram Sylvania Inc.

Osram Opto Semiconductors Gmbh

Fluence Bioengineering, Inc.

Joseph Laski

Makarand H Chipalkatti

Maria Thompson

Richard Speer

Michael Quilici

David W Johnston

Seung Cheol Ryu

Richard Garner

Jeremy Spaulding

Kailash C Mishra

Vimlesh Shukla

Charles A Brunault

Rebecca Schmidt

A horticultural luminaire includes a first and second horticultural light sources to provide growth lighting to a plant at a first and second wavelengths. A control unit provides first lighting control signals to the first horticultural light source to modulate the first growth lighting and provides second lighting control signals to the second horticultural light source to modulate the second growth lighting. A LiDAR sensor is connected to the lighting control unit to receive the first and second control signals, and having optics to detect reflected first and second growth lighting to determine the distance from plant to sensor and a biometric property of the plant from the received first and second control signals and detected first and second reflected second growth lighting. In some implementations the LiDAR sensor and first and second horticultural light sources are integrated into the horticultural luminaire.

Horticultural luminaire with LiDAR sensing

A system and method for determining vehicle position uses light based communication (LBC) signals and a time-of-flight (TOF) pulse. Each vehicle includes a LBC system having light emitting diodes (LEDs) and receiver photodiodes capable of sending and receiving pulsed light binary messages. The LBC system may also include a TOF transceiver for sending and receiving TOF pulses, or the transmitter and receiver diodes may be used to send and receive TOF pulses. Each LBC system has a controller coupled to the transmitter diodes and receiver diodes (and the TOF transceiver when present). The controller includes a processor configured to determine the distance between vehicles. Optical characteristics are used to discern relative angle, a header is used to determine relative orientation, and the time-of-flight is used to determine distance, which together may be used by the processor to determine the relative location between transmitting vehicle and the receiving vehicle.

System and method for determining vehicle position based upon light-based communication and time-of-flight measurements

Lighting methods and systems to enhance the browsing behaviors of shoppers in a manner intended to be primarily subconscious include illumination of a targeted area, such as a typical retail display, with a tunable spectrum lamp that slowly cycles through different illumination spectra such that color rendering of illuminated target is deliberately varied for subtle arousal of the visual senses. The illumination spectra, and the rates at which spectral conditions are changed, are both chosen as such that multi-colored objects in the targeted area change in appearance in a barely noticeable way, such that shoppers may find their visual attention redirected, seemingly at random, to a wider variety of products on display. Color spectrum changes also may be controlled in coordination with predefined packaging colors to create quasi-animation effects.

Dynamic color rendering methods and systems providing just-noticeable color accentuation and quasi-animation effects

Structures for transitioning between two layers of differing lattice parameters are disclosed. In some embodiments, the structures are in the form of a superlattice that serves as a strain relieving transition between two layers of differing lattice parameters. By controlling the properties of the superlattice, the superlattice can exhibit desirable properties such as transparency to light and lattice matching to one of the two layers of differing lattice parameters. Optoelectronic devices such as light emitting diodes including such superlattices are also disclosed.

Strain relief superlattices and optoelectronic devices including the same

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.

System and method for controlling lighting

A light source that generally includes multiple light emitting diode (LED) sources emitting light at different colors. A controller energizes the LED sources for establishing a changing pattern of the light colors to provide a decorative effect while simultaneously establishing white light illumination of a target area.

LED-based light source having decorative and illumination functions

A method and system for controlling lighting in a space reduces energy consumption of the light sources by changing at least one of the color rendering index (CRI) and the correlated color temperature (CCT) while maintaining illumination levels. Preferably, the method and system sense movement of people in the space relative to light sources that light the space, and automatically and individually adjust plural solid state lighting devices that form each of the respective light sources to a first lighting condition when people are in a first position, wherein the lamps respectively emit light of a first illumination level and a first CRI at a first electrical power level, and to a second lighting condition when people are in a second position, wherein the light sources respectively emit light of the first illumination level and a smaller CRI than the first CRI and at a lower electrical power level than the first electrical power level.

Method and system for controlling lighting

A lighting apparatus, particularly for the use as lighting elements in signage or as backlighting apparatus, which comprises a cavity formed by a light emitting front side, a reflective backside arranged opposite to the front side and a sidewall, and a plurality of light emitting semiconductor components mounted on the sidewall in such a way that their light is irradiated in the cavity. The reflective backside of the cavity is formed in such a way that the cavity is divided into at least two partitions directing the light to the front side.

Lighting apparatus

An illumination device comprising at least four luminous units (), the light emitted by at least two of the four luminous units () being suitable for being mixed to form white light. Moreover, an apparatus () for dimming at least one of the four luminous units () is provided. White light having a desired color temperature (CCT) and a high color rendering index can be generated by means of the illumination device.

Growing community of inventors

Stoneham, MA, United States of America

Joseph Laski