Rensselaer Polytechnic Institute

Bluehalo Labs, LLC

Mark S Rea

Andrew Bierman

Mariana Gross Figueiro

Robert M White

Jean Paul Freyssinier

Rajeev Bhalla

Gregory A Ward

John Donovan Bullough

Geoffrey E Jones

Inderpreet S Thukral

Mariana G Figueiro

John D Bullough

Martin B Overington

Devendra Tolani

William L Glennie

Charles Jarboe

Pedram Hovareshti

John Van Derlofske

Glenn Nickens

Jordan Specht

Devon Callan

A method of adjusting lighting to reduce sky glow. The method includes the steps of detecting, by a plurality of sensors, an amount of cloud coverage in a region of the troposphere; determining, by a sky glow reduction circuitry, whether the amount of clouds is greater than, less than, or equal to a predetermined cloud coverage threshold; and adjusting, by a light output controller circuitry, a light output of a plurality of light sources to reduce sky glow if the amount of clouds is less than or equal to the predetermined cloud coverage threshold. The adjusting step is at least partially based on a predetermined policy.

Systems and methods for controlling outdoor lighting to reduce light pollution

A luminaire includes a frame, an ambient light source positioned within the frame adjacent a first end of the frame, a downlight light source positioned within the frame adjacent a second end of the frame, a diffuser connected to the frame and at least partially surrounding the ambient light source, and a reflector configured to direct light emitted by the downlight light source. A first driver is in electrical communication with the ambient light source and is configured to adjust the illuminance of the ambient light source. A second driver is in electrical communication with the downlight light source and is configured to adjust the illuminance of the downlight light source. A controller is in electrical communication with and send control signals to the drivers to change the light sources between a plurality of illuminance modes, which includes a circadian effective mode and a circadian ineffective mode.

Circadian effective luminaire

A Circadian Rhythm Monitoring and Regulation (CMR) system and method that includes: a novel non-obtrusive wearable system for increasing the health and productivity of warfighters or other individuals that are disrupted by excessive, abnormal shifts in work or flights across multiple time zones. The CMR system is based on advanced sensor and software technology and models of human circadian system phototransduction and a circadian stimulator oscillator developed by applicants. It measures circadian misalignment and provides lighting suggestions for circadian rhythm maintenance and realignment.

Circadian rhythm monitoring and regulation system

Multipurpose lighting systems and methods of providing controllable lighting are provided. A lighting system includes a sheet of flexible material, a plurality of light sources and a controller. The plurality of light sources are attached to the sheet of flexible material and configured to emit diffused light. The controller is coupled to the plurality of light sources and is configured to control one or more of the plurality of light sources according to one of a plurality of prescribed lighting characteristics associated with a respective plurality of different lighting tasks. In some examples, the lighting system includes a camera coupled to the sheet of flexible material configured to capture at least one image of an object synchronously with the light emitted by the plurality of light sources.

Luminous roof for NICU incubators for regulating circadian rhythms in infants and for providing high visibility of infant anatomy for healthcare staff

A system for approximating flux density of light on a human retina. A housing has an opening allowing light to pass to inside the housing. A baffle coupled to the housing replicates a facial cutoff function response for the light inside the housing. Two detectors are positioned to detect the light inside the housing. One detector produces a photopic spectral response function of the light inside the housing that approximately replicates a spectral response of the foveal cones in the retina. Another detector produces a scotopic spectral response function of the light inside the housing that approximately replicates a spectral response of rods in the retina. A processor coupled to the detectors calculates a mesopic flux density of the light inside the housing based on the photopic and scotopic spectral response functions.

Retinal flux density meter and method of use

Apparatus for the control of visible conditions in various spatial environments is disclosed along with a method for operating said apparatus. The apparatus employs programmed central controller means to distribute control signals to remote devices for an adjustment of various local environment conditions. The control signals are developed in a novel manner employing optical means with the output signals therefrom being processed to provide visual information based upon segmenting the visual image into spatial regions and further processing these data signals to reflect the relative light contribution from light sources in the spatial environment being regulated. Typical controller apparatus operating by such means can adjust illumination in the building as well as further provide occupancy or fire detection.

Control of visible conditions in a spatial environment

Growing community of inventors

Melrose, NY, United States of America

Mark S Rea