Re: CFL database

[nobody@xxxxxxxxxxxx (Dave Houston)]

I think you're mostly right on epilepsy (I had misunderremembered the
critical frequencies) although it's possible to get a beat frequency from
watching TV with fluorescent lighting.

     http://www.epilepsynse.org.uk/pages/info/leaflets/photo.cfm#frequency

"For example, the flickering from a fluorescent tube light could interact
with the light from a screen and trigger a seizure. The risk of this
happening may be reduced by using non-fluorescent lights."

If you lived down here you'd have less need of artificial tanning and you'd
learn to spell color properly (or, at least, more economically). ;)

"John J. Bengii" <nobody@xxxxxxxxxxxxxx> wrote:

>They way I understand it this report in another ignorant media
>grandstand based on ancient information.
>
>Colour spectrum of light can be an affecting part for SADS and other
>mood disorders. Fluorescents are usually the lights that people sit in
>front of to alleviate these symptoms. The daylight and high K ratings
>are much better than incandescents, typically.
>Hell, I and many other lay in front of huge wattage fluorescents to
>get tanned and rid ourselves of skin eruption due to excema and
>psoriasis. This is a recognized medical practice that has now erupted
>as a cancer preventative, also.
>
>The 60 Hz flicker was another problem with fluorescents that has been
>alleviated over the last few decades by longer persistence phosphors
>and with the high frequency electronic ballasts the flicker
>disappears.
>
>My understanding is that epileptics have problems with strobing lamps
>interfering with their alpha rhythms, putting them into a beta wave
>state. Beta states are from (guessing from memory) 10-12 Hz and up.
>Electronic inverters certainly are not in this range. Possible 25 Hz
>incandescents and entertainment strobe lights are for sure, as well as
>some film sequences.
>
>
>"Dave Houston" <nobody@xxxxxxxxxxxx> wrote in message
>news:477e5ec0.710429015@xxxxxxxxxxxxxxxx
>> Interesting link. The high frequencies used by the SMPS are in the
>> range
>> that cause some epileptics problems. I wonder how the demise of
>> incandescents will affect treatment for SAD.
>>
>> http://en.wikipedia.org/wiki/Seasonal_affective_disorder
>>
>> "Lon" <Lonnie@xxxxxxxxxx> wrote:
>>
>>>More FL related issues:
>>>http://www.dailymail.co.uk/pages/live/articles/health/healthmain.html?in_article_id=506082&in_page_id=1774
>>>
>>>It would appear that there are medical issues for some people
>>
>>
>> http://davehouston.net  http://davehouston.org
>> http://tech.groups.yahoo.com/group/roZetta/
>> roZetta-subscribe@xxxxxxxxxxxxxxx
>


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