If you are designing any system with blinking lights or LEDs then keep Photosensitive Epilepsy in mind.
These quotes come from the website of the British Epilepsy
- "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
- "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.