| CPC G02B 7/105 (2013.01) [G02B 5/1814 (2013.01); G02B 15/12 (2013.01)] | 17 Claims |

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1. A driving module configured for driving a teleconverter lens assembly to move in reciprocal directions, the driving module comprising: a mounting base; a driving assembly connected with the mounting base and comprising: a linear motor adapted to be fixedly connected with the teleconverter lens assembly, the linear motor being configured to drive the teleconverter lens assembly to move in the reciprocal directions; and an air cylinder configured to support the teleconverter lens assembly; and an optical grating sensor electrically connected with the linear motor and configured to detect and feedback a position of the teleconverter lens assembly driven by the linear motor in real time.
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