The logo was unveiled on Monday
A segment of animated footage promoting the 2012 Olympics has been removed from the organisers' website after fears it could trigger epileptic seizures.
Prof Graham Harding, who developed the test used to measure photo-sensitivity levels in TV material, said it should not be broadcast again.
Charity Epilepsy Action said it had received calls from people who had suffered fits after seeing it.
Organiser London 2012 said it will re-edit the film.
The new logo for the event, which is a jagged emblem based on the date 2012, was unveiled on Monday.
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