Camera Phones may soon have a Zoom Lens
by Barry Fox, New Scientist — “Picture-messaging phones may be about to get a whole lot more intrusive. Thanks to a novel and ultra-cheap micromotor technology, cellphone cameras should soon be able to zoom and focus with the same precision as the autofocusing lenses used in expensive stills cameras.
Limited of Cambridge, UK, has found a novel way to make a thin sheet of a piezoelectric ceramic material work like a motor. It can move whatever is placed on top of it, or it can be rolled into a cylinder to grasp and move a miniature camera lens.”
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