| 摘要 |
PROBLEM TO BE SOLVED: To prevent a focusing lens from moving unnaturally or against operator's intention by inputting reference voltage when a focusing position demand is not connected. SOLUTION: This optical device to/from which a position command forming device 1 supplying a position command signal is connected/detached is equipped with driving means 17, 19 and 21 driving an optical adjusting means 20 based on the position command signal. The device is provided with a discrimination means 13 discriminating whether or not the position command signal is supplied, and a control means 25 controlling the driving means to be made in a stop state when the discrimination means discriminates that the position command signal is supplied. |
