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Plessey LEDs in circadian-modulated lighting

Boston company to develop lighting systems that control bioactive light spectral wavelengths

Plessey will provide Circadian ZircLight, a US company that makes equipment for the workplace, with  LEDs for the development of circadian-modulated, smart LED lighting systems and lamps.

Based near Boston, Massachusetts, USA, Circadian ZircLight's lighting division is developing white light fixtures and backlighting which are claimed to control bioactive light spectral wavelengths to maximise productivity during the day and prevent the harmful effects of light exposure at night. 

The technological developments are said to build upon a growing body of research showing that exposure to light at night causes a disruption of brain neuroendocrine systems, including melatonin and cortisol rhythms.  This research suggests that the myriad of health issues related to shift workers may be due to the night time light exposure during night shifts.

Harish Rao, Circadian ZircLight's VP Lighting Products, said: 'We are developing a comprehensive set of smart, human-centric LED product solutions to provide the right light for human health, safety and productivity across the 24 hour day without changing colour temperature or dimming the lights.  By working with partners such as Plessey, who are leaders in LED lighting and light sensors and controls, we are bringing a healthy revolution to how light is used during day and night.'

Keith Strickland, Plessey's CTO, said: 'There are more benefits to LED lighting than just cost saving. The possibilities of integrated solutions is the future of solid state lighting, and Plessey is at the forefront of this revolution. We are excited to be a part of this project and believe the combined skillset will create a ground-breaking product.'

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