Light + Health

Light + Health, Research

Aging Retinas Receive 86% Less Blue Light Compared To Children

New research from the University of Zaragoza in Spain quantifies how the aging eye restricts the amount of circadian light reaching the retina based on photopic illuminance reaching the corneal plane and considering the optical density of an aging crystalline lens. As the researchers state: “As a result of the described behavior, retinal illuminance may [...]

Education + Resources, Light + Health

Innovators in Residential Healthcare: Circadian Principles & Practice

Dr. Shelly James, Founder of Age of Light Innovations Group, is hosting a webinar, Innovators in Residential Healthcare: Circadian Lighting Principles & Practice, to share best practices in circadian lighting for residential healthcare facilities. Current research suggests that lighting that actively supports a robust day-night (or ‘circadian’) cycle in older people with dementia can significantly [...]

Agriculture, Light + Health

Product Monday: NanoLambda Ultra Compact Bluetooth Spectroradiometer

The XL-500 Meter by NanoLambda is an ultra-compact, wearable, wireless battery-operated Spectral Power Distribution or Spectroradiometer (SPD) measurement tool. It uses Bluetooth to upload data and has an internal memory to store over 8,000 measurements on a single battery charge. It captures 340-1,010 nanometer wavelengths in a single reading. The device is groundbreaking in its small [...]

Legislation + Regulation, Light + Health

Canada Proposing To Ban HID Lamps In Addition To Fluorescent

Kudos to Al Uszynski of inside.lighting for breaking this story about the Canadian government’s proposal to ban the sale of most mercury-containing lamps. Fluorescent lamp bans are already occurring in California and Vermont, and are under consideration in other US states. The Canadian proposal goes significantly further, to ban most HID lamps. It’s noteworthy that [...]

Light + Health, Research

Researchers Demonstrate CCT Is A Poor Predictor Of Circadian Potency

Tony Esposito and Kevin Houser published a new study in Scientific Reports demonstrating that CCT is not suitable for predicting the biological potency of light. The experiments utilized a 5-channel LED lighting system to show that significant variation in CS and EML/mEDI exists at any fixed value of CCT and photopic illuminance. For many years, [...]

Controls, Light + Health

Smart Lighting Can Aid Aging In Place

By 2050, the number of older adults aged 50 and older is expected to double, comprising 20% of the total US population. The overwhelming majority want to age in place, but experts say the current housing stock is ill-equipped to handle those desires. Lighting can be controlled based on motion through simple solutions that only [...]

Energy + Environment, Light + Health

Combining WELL And LEED Building Certifications

The US Green Building Council and the International WELL Building Institute have formed a partnership to simplify certifying buildings for both health and sustainability. The USBGC’s LEED certification rates a building’s sustainability credentials, while WELL ratings consider a building’s impact on the wellbeing of people who use it. Both LEED and WELL building certifications have [...]

Light + Health, Products + Technology

Product Monday: Virtual Sky With Moving Clouds

Artificial Sky offers a product, Virtual Sky, that utilizes LED luminaires which appear to be a blue sky with passing clouds overhead, birds flying, and sunrise and sunset effects. Virtual Sky can remotely change from overhead dimmable white task lighting to an ultra-realistic blue sky with moving clouds that mimic daylight entirely.

Light + Health, Products + Technology

Product Monday: New Line Of Air Disinfection + Lighting Products From ETi Solid State Lighting

ETi Solid State Lighting Inc. has introduced a new line of LED light fixtures proven to kill bacteria and viruses, including SARS-Cov-2, the virus that causes COVID-19. The SilentAire Plasma Disinfection Lighting product line provides innovative and safe air disinfection technology.

Light + Health, Research

Nearly All Mental Health Disorders Correlate With Circadian Rhythm Disruption

University of California, Irvine (UCI) researchers conducted a thorough examination of peer-reviewed literature on the most prevalent mental health disorders and found that circadian rhythm disruption (CRD) is present in nearly all of them. However, correlation is not causation, so it is not clear if the mental disorders cause circadian disruption, if circadian disruption causes mental disorders or both in a positive feedback loop.

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