JP2008046350A5 - - Google Patents

Claims (6)

A focus signal corresponding to the contrast of the image is obtained from the output signal of the imaging means, and a first automatic focus adjustment method for performing lens driving control for moving the focus lens to the in-focus point based on the focus signal and corresponding to the subject distance In an automatic focus adjustment apparatus that performs focus adjustment in combination with a second automatic focus adjustment method that performs lens drive control for acquiring information to be performed and moving the focus lens to a focal point based on the information,
A memory for storing a specified range included in the movable range of the focus lens, out of lens movement trajectory information in which a focus lens position that is a focal point with respect to a zoom lens position is determined according to information corresponding to the subject distance. Means,
Control means for determining whether or not to perform lens drive control by the second automatic focus adjustment method according to whether or not the information corresponding to the subject distance is within the specified range. Automatic focusing device.   2. The automatic control according to claim 1, wherein the control unit prohibits lens drive control by the second automatic focus adjustment method in response to information corresponding to the subject distance being outside the specified range. Focus adjustment device.   3. The autofocus according to claim 2, wherein the control unit performs lens driving control by the first autofocus adjustment method in response to information corresponding to the subject distance being outside the specified range. Adjusting device. The automatic focus adjustment apparatus according to any one of claims 1 to 3 , wherein the specified range is limited between a nearest end and an infinite end of the focus lens position.   5. The automatic focus adjustment apparatus according to claim 1, wherein the specified range is limited to a movable range of the zoom lens.   An image pickup apparatus comprising the automatic focus adjustment apparatus according to claim 1.