December 2017 Program

“Human Centric Lighting is About Spectrum, Not Color Temperature”

TUESDAY, December 5, 2017

HGA, Minneapolis

1 CEU, 1 AIA



Register now for the upcoming IES MSP December program on December 5. This program features Robert Soler, VP of Human Biological Research and Technologies from BIOS.


Electric light is an epidemic with several negative impacts. It disrupts our natural rhythms and has altered our relationship with natural light. It has changed what millions of years of evolution entrained in our bodies.

Light is the strongest time cue for the circadian system. – Light signals the body clock whether it is night or day and therefore if it should be awake, alert, restful or regenerative. Photobiologists discovered a light-sensitive protein in the eye’s retina called melanopsin that detects intensity or changing levels of light. This photoreceptor projects to a different, non-visual part of the brain where our circadian clock is located. So when sunlight gets brighter in the morning, melanopsin becomes very active and triggers the brain’s body clock, or suprachiasmatic nucleus, to shift into an active day pattern.

All blue light is NOT created equal. – A lot of claims have been made on blue light. Some say it’s good and some say its bad. In fact there are two regions of blue light that are different; a good blue light regions and a bad blue light region. The good blue light, which aligns with novel circadian photoreceptor melanopsin, has a peak near 490nm and appears more like a sky blue color, while the bad blue has a peak region from 420nm to 450nm is defined by the Illuminating Engineering Society as Blue Light Hazard, and appears more as a royal blue color.

Legacy LED is hitting the wrong curve. – Current LED Technology exacerbates the problems caused by electric lighting. Their spectrum actually has a trough in the good blue region (melanopsin) with peaks in the bad blue (blue light hazard). While colors may appear close to daylight, the spectrum is drastically different.

This presentation will review current research of LED lighting, spectrum, and effects on circadian rhythm and identify solutions to improving human centric lighting.

Learning objectives of the presentation are:

1. How circadian rhythm influences our sleep, productivity and overall health

2. How current indoor lighting solutions have created an epidemic known as “Social Jet Lag”

3. Discover the design parameters that are important to designing a space for circadian solutions

4. Learn about the industry standards for promoting circadian design

Please join us for this event. We look forward to seeing everyone.

About the presenter

Robert Soler leads the Human Biological Technologies and Research at BIOS. Prior to his work with BIOS, his most prominent work was with Kennedy Space Center, where he helped design and build the first LED light for use on the International Space Station (ISS) and collaborated with scientists to use LED light for photo biological purposes in space. Robert’s years of experience as an electrical and lighting engineer have led him to become an inventor of 73 issued patents in the U.S. He has authored several published papers on light and its use for air and water disinfection and for human health benefits, with an emphasis on its use in spaceflight applications.

11:30 AM: Registration and Box Lunches
12:00 PM: Program
1:00 PM: Adjourn

Meeting Location
Hammel Green Abrahamson Inc. (HGA)
420 North 5th Street
Minneapolis, MN 55401

Event Fees

IES Member $35.00
Non-Member $45.00
Student $10.00

Registration deadline is Friday, Dec. 1. Thank you!

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