| 摘要 |
PURPOSE: An AF control apparatus is provided to control focus with the signal of a first HPF unit and a second HPF unit. CONSTITUTION: According to a change in the first direction of a lens position, if a first focus value increases, a first HPF(High Pass Filter) unit(333) outputs a lens movement signal. If the first focus value diminishes, the first HPF unit outputs a signal for moving a lens in a direction opposite to the first direction. If a second focus value is bigger than a fixed threshold, a second HPF unit(331) outputs a lens position lock signal. A controller(340) outputs a focus control signal. |
