For the actuator mechanism that moves the lenses for focusing, Hitachi Maxell makes use of piezoelectric elements rather than voice coil motors.
To limit the module's overall size, the optical lenses and the actuator are integrated together, with the piezoelectric elements and other actuator components fit into one corner of the square case.
One advantage of using piezoelectric elements instead of voice coil motors for the actuator mechanism is that the lenses can be moved without making noise. This eliminates the problem of mechanical noises being picked up when the phone is used to record video clips with sound.
Hitachi Maxell will manufacture the lens module at a subsidiary in Malaysia, starting at a rate of some 1 million units a month and eventually reaching 4 million. Sales will be managed by subsidiary Maxell Finetech Ltd.
The new lens module is more expensive than conventional modules made using voice coil motors, but the company expects to bring prices down to the same level through economies of scale as production is increased.
(Nikkei) cg

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