Lens control device, lens control method, and recording medium
AssigneeCanon Kabushiki Kaisha
InventorHidetaka Uemura
Life of this patent
Estimating the term…
Abstract
An imaging apparatus is able to perform limit control of limiting a drive range of a focus lens and performing control of the focus lens. When first information regarding an end position of the drive range of the focus lens in the limit control is set, a body control unit drives the focus lens from a position set as one end position of the drive range of the focus lens in the limit control on a near side and a far side to one end position of the movable range of the focus lens on a near side and a far side, and then stores information corresponding to a drive amount during the drive as the first information.
Claims15
A lens control device performing control of the focus lens, comprising:
- an input member configured to receive designation, from a user, of a position of the focus lens in a predetermined mode in which a focus position is stored and read;
- at least one processor programmed to perform operations of following units:
- an acquisition unit configured to acquire first information regarding the focus position in the predetermined mode designated via the input member;
- and
- a control unit configured to control drive of the focus lens in the predetermined mode based on the first information,
- wherein, when the focus position in the predetermined mode is designated via the input member, the control unit drives the focus lens from the designated focus position to an end position and the acquisition unit acquires information corresponding to a drive amount during the drive as the first information.
A lens control method for performing control of the focus lens, comprising:
- receiving designation, from a user, via an input member, of a position of the focus lens in a predetermined mode in which a focus position is stored and read;
- driving the focus lens from the designated focus position in the predetermined mode to an end position;
- acquiring information corresponding to a drive amount during the drive as first information regarding the focus position in the predetermined mode designated via the input member;
- and
- controlling the drive of the focus lens in the predetermined mode based on the first information.
A non-transitory computer-readable recording medium storing a program for causing a computer to execute each step in a lens control method for performing control of the focus lens, comprising:
- receiving designation, from a user, via an input member, of a position the focus lens in a predetermined mode in which a focus position is stored and read;
- driving the focus lens from the designated focus position in the predetermined mode to an end position;
- acquiring information corresponding to a drive amount during the drive as first information regarding the focus position in the predetermined mode designated via an input member;
- and
- controlling the drive of the focus lens in the predetermined mode based on the first information.
Dependencies are inferred from the claim text.