Flicker

September 16, 2024Visibility and annoyance of the phantom array effect varies with age and history
of migraine
– Discussion of flicker and Pulse Width Modulation and their impacts.

July 12, 2024A Review of Contemporary Issues with Temporal Light Modulation of Lighting Systems – IEEE review paper of issues with flicker and other temporal issues. There is mention of the lack of support for sensitive persons.

2024Correspondence: Flicker: The sneaky perception that ranges from invisible to debilitating – PNNL researcher Naomi Miller writes that flicker is a psychological health hazard.

August, 2023Illuminating Engineering Society Newsletter – IES states, ““Temporal light modulation (TLM, or flicker) is an increasing phenomenon in indoor, outdoor, and vehicular applications, due to the widespread adoption of LED sources. Most LED lighting systems don’t produce problematic TLM, but for those that do, there has been a delayed recognition that certain TLM waveform characteristics and viewing conditions can result in distraction and disorientation, cognitive effects, and serious health consequences in some populations.”

2021Flicker measurement (Temporal Light Artefact) of LED lighting – Discussion of flicker measurement.

July 27, 2017The Scientific Reason You Don’t Like LED Bulbs – Explains that LED bulb can flicker at 400 Hertz, but humans are negatively affected up to 3000 Hertz.

2011Exploring Flicker in Solid State Lighting – Pacific Northwest National Laboratory (Department of Energy). Includes statements that flicker can cause neurological problems.

2010LED Lighting Flicker and Potential Health Concerns – There are various reasons why LEDs can flicker and this flicker can cause seizures and other negative neurological responses.