We are designing the next evolutionary standard in LED lighting in order to bring natural daylight indoors. Using 5 (or more) colors to make white, integrating an intelligent sensor array into each fixture and networking them, we will save an additional 25% or more energy on top of the 40% saved in the LED conversion.
The problem with existing white LEDs are as follows;
They comprise only two spectral colors, being based on a blue LED with yellow phosphor
High blue content light is known to upset biological clocks
Multiple point source LEDs can cause the multi-shadow problem
They are point sources of light with high glare factor that is hard to mitigate
They are ‘dumb’ as they do not have integrated sensors or microcontrollers to control their lighting performance, cannot sense the environment and collect data
Their color and brightness change over time
Dimming methods cause flicker which is annoying and leads to health problems
Architects, who are the prime desig...
We are designing the next evolutionary standard in LED lighting in order to bring natural daylight indoors. Using 5 (or more) colors to make white, integrating an intelligent sensor array into each fixture and networking them, we will save an additional 25% or more energy on top of the 40% saved in the LED conversion.
The problem with existing white LEDs are as follows;
They comprise only two spectral colors, being based on a blue LED with yellow phosphor
High blue content light is known to upset biological clocks
Multiple point source LEDs can cause the multi-shadow problem
They are point sources of light with high glare factor that is hard to mitigate
They are ‘dumb’ as they do not have integrated sensors or microcontrollers to control their lighting performance, cannot sense the environment and collect data
Their color and brightness change over time
Dimming methods cause flicker which is annoying and leads to health problems
Architects, who are the prime designers of lighting, told us in multiple interviews that their customers are sensitive to the total cost of ownership, warrantee length, lumen maintenance over life, and highly desire reconfigurable spaces and reconfigurable lights and controls. Businesses have learned that providing employees with control of their workspace lighting enhances productivity. Architects are striving to differentiate their brand, and want to be known as leaders in energy savings and designers of best in class lighting. Giving architects their ultimate desire to customize illumination, by changing colors and textures after installation.
The goal of this project is the development of a multi-spectral light engine with sensor feedback connected to a wireless mesh network and the design of two platform prototypes of advanced lighting for grid based and pendant based fixtures. Further, we will design a multi-sensor array and integrate it into each fixture, then process the data collected into a picture of the environment. In addition, we will explore the competitive wireless mesh network landscape as they relate to lighting, i.e. Zigbee Light Wave, Bluetooth Smart Mesh, CSR Mesh, VE Mesh, and HUE, to name a few.
Another goal for this design is the advancement of optical beam steering design practices to eliminate the issue of glare and visibility of the light source, and distributing light in a smooth and uniform way both directly and indirectly.
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