> I think the whole thing boils down to psychology. If you're not an expert 
> on this, ask any non-technical person what he/she might think about a 
> colour or blinking frequency

These quotes come from the website of the British Epilepsy Association: 
http://www.epilepsy.org.uk/info/photofrm.html

-  "It should be bore in mind that people with photosensitive epilepsy are unlikely to 
be troubled by a flicker rate of under five 
per second"
-  "Only 50% of photosensitive people are sensitive to 50Hz but 75% are sensitive to 
25Hz"
-  "100Hz television sets will almost entirely solve the problem"


This quote comes from the website of the National Society for Epilepsy (UK):

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

- "The frequency of flashing light which is most likely to provoke seizures varies 
from person to person. Generally, it is between 
the frequencies of 5-30 flashes per second (hertz). Some people, however, are 
photosensitive at higher flash frequencies. It is 
uncommon to have photosensitivity below 5 hertz."

Avoid LED blinking or modulation at rates between 5 and 100Hz.

-- 
      http://www.unusualresearch.com/ http://www.bpaddock.com/

-- 
Author: Bob Paddock
  INET: [EMAIL PROTECTED]

Fat City Network Services    -- 858-538-5051 http://www.fatcity.com
San Diego, California        -- Mailing list and web hosting services
---------------------------------------------------------------------
To REMOVE yourself from this mailing list, send an E-Mail message
to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in
the message BODY, include a line containing: UNSUB CHIPDIR-L
(or the name of mailing list you want to be removed from).  You may
also send the HELP command for other information (like subscribing).

Reply via email to