| 摘要 |
Device for controlling an objective lens including one or more groups of lenses (L1, L2) which can be moved in one direction of an optical axis by means of an electrical control unit comprising memory means for memorising a position of the said group of lenses (L1, L2) control means for moving the said one or more groups of lenses (L1, L2) to the said position memorised in the said memory means by means of the said electrical control unit.
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