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People wearing glasses look odd during video conferences because their lenses
reflect a disturbing image of the screen, but Nokia of Finland has come up with
a clever solution (EP 812 106). Since all TV screens go blank for a few
milliseconds as one picture frame replaces another, Nokia proposes synchronising
the camera with the screen, so pictures are taken only when the screen is blank.
All this happens so quickly that the effect is not noticeable—especially
as the picture quality of video conferences is far inferior to that of broadcast
TV.