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Self-develop product of Sankyo precision( Huizhou)


                             VCM(Voice Coil Motor)



The operating principle of straight focusing motor resembles horns, therefore it is also called voice coil motor. The motor consists of stator and active cell. Stator is made up of perminant magnet and soft magnet.The gap left between those two magnets forms magnetic field. Composed of lens carrier and coil, stator is located in the gap between perminent magnet and soft magnet. When coil is filled with direct current, stator generates forward power in magetic field. Spring laminations on both sides of active cell creates balance and stablility for the thrust. Location of active cell and the size of current show a linear relationship. In this way, lens is put into motion and the objective of focusing is realized.

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