| 摘要 |
Provided is a technique capable of correcting not only a variation due to a moving speed and a temperature change of a lens but also a variation due to a focal distance and a temperature change of the lens, with a high degree of accuracy. An optical device (100) includes a control unit (1), a lens (2), an image sensor (3), a temperature sensor (4), a storage unit (5) that stores a driving pulse number, lens information, and speed information of the lens (2), an image signal processing unit (6) that acquires the lens information and the speed information from the storage unit (5) under the control of the control unit (1), a piezoelectric element (7) that moves the lens (2), and a driver (8) that controls the piezoelectric element (7). The image signal processing unit (6) moves the lens (2) by the piezoelectric element (7), using the lens information and temperatures of the lens (2) and the piezoelectric element (7), and controls the piezoelectric element (7), using the speed information and the temperature of the piezoelectric element (7). |
