Special Filtered Glasses & Sleep Lamps to
boost Melatonin for a Good Night's Sleep

Glasses and Lamp Products

We have pleasure in introducing new technologicaly advanced products for the safe guard of the public from radiation known as ultra violet or white light which has now been considered a serious health issue and scientists have increasingly found that the blue portion of white light suppresses melatonin.

Sleeping Beauty

Ronfell Group has been instrumental in the advanced techology of thin film coating of teflon fluorplastics onto lamps and materials in colour and various strengths of ultra violet and colour filtering to reduce this possible health hazard.

In co-operation with John Carroll University's Lighting Innovations Institute and Ronfell Group in England are in a position to do something about it. Through its spin-off companies, Photonic Developments LLC, www.lowbluelights.com and www.sleeplamps.com and Ronfell Group's website www.lowbluelights.co.uk and www.sleeplamps.co.uk are offering consumers a wide range of products designed to filter out the most harmful blue light.
Please visit our websites under Sleep section to learn more about the research behind these products.


Exposing your eyes to light at night-time will stop your pineal gland from making melatonin. Ordinary white light contains a blue component. It is the blue component that suppresses melatonin. In the Dec 19, 2005 press release by the U.S. Government National Institute for Environmental Health Sciences, it states:

“…night-time exposure to artificial light stimulated the growth of human breast tumors by suppressing the levels of a key hormone called melatonin. The study also showed that extended periods of night-time darkness greatly slowed the growth of these tumors”.

At John Carroll University they have developed glasses you can use at night that block the harmful blue light. There is still plenty of yellow, orange and red light so you can read or watch television. Blocking the blue light makes it appear the same as darkness (virtual darkness) as far as melatonin is concerned. You can make “extended periods of night-time darkness” by combining virtual darkness with real darkness. The most effective thing you can do with almost no change in your life style is to buy a pair of our glasses and put them on every evening about three hours before bedtime you will find you sleep better.

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