Lens control system, lens controller, and operating apparatus
AssigneeFujinon Corporation
InventorAtsushi Kanayama
Life of this patent
Estimating the term…
Abstract
In relation to a lens control system where a control signal indicating a target zooming speed is delivered to a lens controller in accordance with operation of a zoom demand and where the lens controller subjects the control signal to non-linear processing to thus effect zoom control, thereby facilitating operation required when a zoom lens is moved at low speed, the lens control system includes a lens controller switching the linear processing between valid and invalid, whereby the lens control system does not excessively perform non-linear processing when the zoom demand outputs a non-linear control signal.
Claims14
A lens control system comprising:
- an operating apparatus that outputs a control signal on the basis of operation of an operating section, the control signal indicating one of a target moving speed of a movable lens group in a taking lens and a target position of the movable lens group;
- and
- a lens controller that controls a moving speed of the movable lens group on the basis of the control signal, the lens controller comprising:
- a non-linear processing unit that performs a non-linear processing of the control signal;
- and
- a determination unit that determines whether to activate the non-linear processing unit.
A lens control system comprising:
- an operating apparatus comprising that performs an output of a control signal on the basis of operation of an operating section, the control signal indicating one of a target moving speed of a movable lens group in a taking lens and a target position of the movable lens group;
- and
- a lens controller that controls a moving speed of the movable lens group on the basis of the control signal,
- wherein
- the operating apparatus comprises a control signal output section that switches the output of the control signal between outputs of a linear control signal and a non-linear control signal with respect to the operation.
A lens controller comprising at least one of:
- a determination unit that determines whether to activate a non-linear processing of a control signal, the control signal indicating one of a target moving speed of a movable lens group in a taking lens and a target position of the movable lens group on the basis of operation of an operating section in an operating apparatus;
- a first switch for selecting one of an activation of the non-linear processing and a deactivation of the non-linear processing;
- an identification signal output unit that outputs an identification signal to the operating apparatus, wherein the identification signal indicates that the lens controller performs the non-linear processing of the control signal, and the operating apparatus outputs the control signal to the lens controller;
- and
- a second switch for selecting whether the control signal is one of a linear control signal and a non-linear control signal.
An operating apparatus comprising at least one of:
- a first switch for selecting one of an activation of the non-linear processing and a deactivation of the non-linear processing;
- a first identification signal output unit a first that outputs a first identification signal indicating whether a control signal is a linear control signal or a non-linear control signal, the control signal indicating one of a target moving speed of a movable lens group in a taking lens and a target position of the movable lens group on the basis of operation of an operating section;
- a second identification signal output unit that outputs a second identification signal indicating whether the control signal indicates the target moving speed or the target position;
- a control signal output unit that outputs the control signal;
- and
- a second switch for selecting whether the control signal is one of a linear control signal and a non-linear control signal.
Dependencies are inferred from the claim text.