Lens device and imaging apparatus

JP2024042239A5Pending Publication Date: 2025-09-17CANON KK
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Patent Information

Application Number
JP2022146821
Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
Filing Date
2022-09-15
Publication Date
2025-09-17

AI Technical Summary

Technical Problem

Existing camera systems lack operability in switching between autofocus and manual focus, as well as control operation and focus operation using a single operating means.

Method used

A lens device with a mode switching mechanism that allows users to switch between autofocus and manual focus, and control operation and focus operation using a single operation input means, integrating a focus lens group, drive unit, operation input means, and lens control section to control the focus lens group based on user input or camera settings.

Benefits of technology

Enhances operability by allowing seamless switching between different modes, preventing unintended focus state changes during shooting and enabling efficient parameter adjustments without disrupting the focus state.

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Abstract

To provide a lens device advantageous for operability in changing the settings of an operation mode.SOLUTION: A lens device is connected with a camera device, and has: a focus lens group; a focus lens driving unit; operation input means; mode switching means that performs switching between a plurality of modes including a first mode and a second mode related to selection of autofocus and manual focus and selection of a target to be operated by the operation input means; and a lens control unit. In the first mode, the lens control unit controls the driving unit on the basis of an operation input from the operation input means, and the drive of the focus lens group is controlled in the manual focus. In the second mode, the lens control unit outputs a control signal for changing a photographing parameter on the basis of input from the operation input means. When a setting value input from the camera device permits autofocus, the lens control unit controls the driving unit using autofocus based on an AF control signal, and when the setting value inhibits autofocus, does not execute autofocus.SELECTED DRAWING: Figure 1
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Description

[Technical field]

[0001] The present invention relates to a lens apparatus and an imaging apparatus. [Background technology]

[0002] As focusing means in an interchangeable lens, there is manual focus, which is adjusted manually, and autofocus, which is focused automatically. Interchangeable lenses are provided with a focus operation ring for manual focusing and a means for switching between autofocus and manual focus.

[0003] Patent Document 1 discloses a configuration in which a means for switching between autofocus and manual focus is provided on the camera side, making it possible to switch between them on the camera side. Patent Document 2 discloses an interchangeable lens that allows switching between autofocus, manual focus, and custom settings, and allows the contents of the custom settings to be set on an operation unit on the lens side.

[0004] Meanwhile, in recent years, there are camera systems in which the focus ring can be used not only for focus control but also as a control ring for controlling camera shooting parameters such as ISO sensitivity. In such camera systems, a switching means is provided on the lens side for switching the role of the operation ring between a focus ring and a control ring. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] JP 2013-080246 A [Patent Document 2] JP 2004-163565 A Summary of the Invention [Problem to be solved by the invention]

[0006] In a camera system having the above-mentioned background art, it is desirable to enable a user to switch between autofocus and manual focus when taking pictures, and to switch between control operation and focus operation using an operation ring, all with a single operating means. An object of the present invention is to provide a lens device which is advantageous in terms of operability in changing the setting of the operation mode. [Means for solving the problem]

[0007] The lens device of the present invention is a lens device connected to a camera device, and comprises a focus lens group movable in the optical axis direction, a drive unit that drives the focus lens group, an operation input means, a mode switching means that selects between autofocus and manual focus and switches between a plurality of modes including a first mode and a second mode related to the selection of an operation target of the operation input means, and a lens control unit, wherein the lens control unit controls the drive unit based on an operation input from the operation input means in the first mode, and controls the drive of the focus lens group by manual focus, and outputs a control signal for changing shooting parameters based on the input from the operation input means in the second mode, and controls the drive unit by autofocus based on the AF control signal input from the camera device when the setting value input from the camera device indicates that autofocus is possible, and does not perform autofocus when the setting value indicates that autofocus is not possible. Effect of the Invention

[0008] According to the present invention, it is possible to provide a lens device which is advantageous in terms of operability in changing the setting of the operation mode. [Brief description of the drawings]

[0009] [Figure 1] 1 is a block diagram showing an imaging device according to the present invention; [Diagram 2] FIG. 4 is an explanatory diagram of a lens side mode selection unit according to the first embodiment. [Diagram 3]FIG. 4 is an explanatory diagram of a camera-side mode selection means according to the first embodiment. [Figure 4] FIG. 2 is an explanatory diagram relating to a focus operation according to the first embodiment. [Diagram 5] FIG. 4 is an explanatory diagram relating to combinations when selecting modes according to the first embodiment. [Figure 6] FIG. 11 is an explanatory diagram of a lens side mode selection means according to the second embodiment. [Figure 7] FIG. 11 is an explanatory diagram of a camera-side mode selection means according to the second embodiment. [Figure 8] FIG. 11 is an explanatory diagram relating to combinations when selecting modes according to the second embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0010] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. The following embodiments do not limit the configuration of the present application. In addition, although a plurality of features are described in this embodiment, not all of these features are essential, and a plurality of features may be combined in any desired manner. Furthermore, the accompanying drawings are drawn at a scale different from the actual scale in order to facilitate understanding of the device according to this embodiment, and the same or similar components are given the same reference numbers, and duplicated descriptions are omitted. EXAMPLES

[0011] FIG. 1 is a block diagram showing an example of a configuration according to a first embodiment of the present invention. The lens device 100 of the present invention is detachably connected to a camera device 200 , and the lens device 100 and the camera device 200 together constitute an imaging device 300 .

[0012] The specific configurations of the lens apparatus 100 and the camera apparatus 200 will be described. The lens apparatus 100 and the camera apparatus 200 are mechanically and electrically connected to each other via a mount unit 150 of the lens apparatus 100 and a mount unit 250 of the camera apparatus 200. The lens apparatus 100 receives power from the camera apparatus 200 via power supply terminals (not shown) provided on the mount units 150 and 250. Within the lens apparatus 100, various actuators and a lens microcomputer 111 (described later) are controlled by the power received from the camera apparatus 200. In addition, the camera apparatus 200 controls the lens apparatus 100 by communicating control commands with the lens apparatus 100 via communication terminals (not shown) provided on the mount units 150 and 250.

[0013] The configuration of the camera device 200 will be described. The camera device 200 has an image sensor 201 including a phase difference AF sensor etc., a signal processing unit 202 , a record processing unit 203 , a display unit 204 , an operation unit 205 , a camera microcomputer 206 , and a camera side mode selection means 211 .

[0014] The image sensor 201 photoelectrically converts a subject image formed by the photographing optical system in the lens device 100 and outputs an electrical signal (analog signal). The analog signal from the image sensor 201 is converted into a digital signal by an A / D conversion circuit (not shown).

[0015] The signal processor 202 performs various image processing on the digital signal from the A / D converter circuit to generate a video signal. The signal processor 202 also generates, from the video signal, defocus information indicating the contrast state of the subject image, that is, the focus state of the photographing optical system, and luminance information indicating the exposure state.

[0016] The signal processing unit 202 outputs the video signal to the display unit 204. The display unit 204 displays the video signal as a live view image used to check the composition, focus state, etc. The display unit 204 is specifically a rear liquid crystal display or an electronic viewfinder of the camera device 200. Furthermore, the signal processing unit 202 outputs the video signal to the recording processing unit 203, and the recording processing unit 203 stores the video signal in an external memory or the like as still images or moving image data.

[0017] A camera microcomputer 206 serving as a camera control unit controls the camera device 200 in response to inputs from an image capture instruction switch and various setting switches of an operation unit 205 . Furthermore, the camera microcomputer 206 transmits a control command related to the focus adjustment operation of the focus lens group 105 corresponding to defocus information generated from the output of a phase difference detection pixel (not shown) provided in the image sensor to the lens microcomputer 111 via the camera communication unit 230. The camera side mode selection means 211 is a means for selecting (switching) a camera side AF mode, which will be described later. As will be described in detail later, the camera side mode selection means 211 switches the camera side AF mode that specifies whether or not to perform autofocus drive (AF drive state) when a shooting parameter change mode, which will be described later, is selected by the lens side mode selection means 121.

[0018] The configuration of the lens apparatus 100 will be described. The lens device 100 has an imaging optical system, a lens microcomputer 111, a drive unit which is a driving means for the imaging optical system, a control unit which controls the drive unit, various position detection units which detect the position of the optical element, an operation ring 110, and a lens side mode selection means (mode switching means) 121.

[0019] The photographing optical system includes a field lens group 101, a zoom lens group 102 that changes the magnification, an aperture unit 103 that adjusts the amount of light, an image stabilization lens 104, and a focus lens group 105 that adjusts the focus, but is not limited to this configuration.

[0020] The lens microcomputer 111 is a control unit that controls the operation of each unit in the lens device 100. The lens microcomputer 111 receives control commands transmitted from the camera device 200 via the lens communication unit 130, which is an information communication means, and receives requests to transmit lens data and requests to receive camera data. The lens microcomputer 111 also performs lens control corresponding to the control commands, and transmits to the camera device 200 lens data corresponding to the transmission request from the camera device 200. The lens microcomputer 111 also receives data from the camera device 200 when it receives a reception request from the camera device 200. The lens microcomputer 111 performs light amount adjustment and focus adjustment processes, which will be described later, in response to commands related to light amount adjustment and focusing among the control commands.

[0021] The zoom lens group 102 can move in the optical axis direction indicated by the dashed line in the figure, and is driven in the optical axis direction by the user operating a zoom operation ring connected to a zoom mechanism (not shown). The focal length of the photographing optical system is changed by the movement of the zoom lens group 102, thereby varying the magnification. The zoom lens position detection unit 106 detects the position of the zoom lens group 102 using a position detection sensor such as a variable resistor, and outputs the position data to the lens microcomputer 111. The output position data is used by the lens microcomputer 111 to generate focal length information.

[0022] The aperture unit 103 includes aperture blades and sensors such as a photointerrupter that detects the state of the aperture blades. The state of the aperture blades is output to a lens microcomputer 111. In response to a command from the lens microcomputer 111, an aperture control unit 107 outputs a drive signal to drive an actuator such as a stepping motor or a voice coil motor, and adjusts the amount of light by the aperture unit 103.

[0023] The image stabilization lens 104 reduces image shake caused by camera shake or the like by moving in a direction perpendicular to the optical axis of the imaging optical system. The image stabilization lens control unit 108 outputs a drive signal to drive the anti-shake actuator according to a command from the lens microcomputer 111 in response to shake detected by a sensor (not shown) such as a vibration gyro. This performs anti-shake processing that controls the shift operation of the image stabilization lens 104.

[0024] The focus lens group 105 is movable in the optical axis direction indicated by the dashed line in the figure, and detects the position of the focus lens group 105 using a focus position detection sensor 112 such as a photointerrupter, and outputs the position data to a lens microcomputer 111. In response to a command from the lens microcomputer 111, a focus lens control unit 109 outputs a drive signal to drive a focus drive unit 113, and moves the focus lens group 105 to perform focus adjustment.

[0025] The operation ring 110 is a rotary operation member rotatably held on the outer periphery of the lens barrel, and has a detection section for detecting a relative operation amount (amount of rotation) around the optical axis, and the detection value is output to the lens microcomputer 111. In a first focus lens drive mode described later, the operation ring 110 serves as a rotary operation member for manually driving the focus lens group 105. In a shooting parameter change mode described later, the operation ring 110 serves as an operation input means for changing shooting parameters by the camera microcomputer 206.

[0026] The lens side mode selection means 121 is a means for selecting (switching) a lens side mode related to an AF drive state and an operation ring state (a function associated with the operation ring 110) which will be described later.

[0027] As a focus function for driving the focus lens group 105 to perform focus adjustment, there are a manual focus (MF) which is a first focus lens drive mode, and an auto focus (AF) which is a second focus lens drive mode.

[0028] To perform autofocus, the lens communication unit 130 transmits focus position information to the camera microcomputer 206 in response to a request to transmit lens data from the camera microcomputer 206. In addition, the lens communication unit 130 receives a focus drive command from the camera microcomputer 206 in response to a request to receive camera data from the camera microcomputer 206.

[0029] The focus position information is generated by the lens microcomputer 111 based on information from the focus position detection sensor 112, and is made up of shooting distance information indicating the focal distance, address information which is a digital value obtained by dividing the focus movement area, and the like.

[0030] The camera microcomputer 206 transmits a focus drive command to the lens microcomputer 111 via the camera communication unit 230, and the lens microcomputer 111 drives the focus lens group 105 in response to the focus drive command received via the lens communication unit 130. Furthermore, the lens microcomputer 111 transmits focus position information to the camera microcomputer 206 via the lens communication unit 130.

[0031] In AF, the camera microcomputer 206 derives the in-focus position of the focus lens group 105 from defocus information and focus position information generated based on outputs from image plane phase difference pixels in the image sensor 201. The camera microcomputer 206 transmits a focus drive command (AF control signal) to the lens microcomputer 111 via the camera communication unit 230, and the lens microcomputer 111 drives the focus lens group 105 in response to the focus drive command received via the lens communication unit 130. Furthermore, the lens microcomputer 111 transmits focus position information to the camera microcomputer 206 via the lens communication unit 130.

[0032] In MF, the lens microcomputer 111 outputs a drive command to the focus lens control unit 109 in accordance with the amount of operation of the operation ring 110 to drive the focus drive unit 113 and move the focus lens group 105 .

[0033] In this specification, a state in which AF can be performed is referred to as "AF-ON" (autofocus possible), and a state in which AF cannot be performed is referred to as "AF-OFF" (autofocus not possible).

[0034] The focus preset functions of the lens device 100 and the camera device 200 of the imaging device 300 of this embodiment will be described with reference to FIGS. The focus preset function by the lens side mode selection means 121 will be described with reference to Fig. 2. In this embodiment, the lens side mode selection means 121 can select the lens side mode among three modes: lens side mode 1 (MF: first mode), lens side mode 2 (CONTROL: second mode), and lens side mode 3 (AF: third mode). As shown in Fig. 2, in this embodiment, the lens side mode selection means 121 is configured as a slide switch, but the present invention is not limited to this, and may be configured as a rotary switch with ends.

[0035] The focus preset function by the camera side mode selection means 211 will be described with reference to FIG. The camera-side mode selection means (AF switching means) 211 is a means for selecting the camera-side mode as the AF drive state described above, and is capable of switching between camera-side mode 1 (AF-ON) and camera-side mode 2 (AF-OFF). Here, it is written as "AF-OFF", but since the state in which AF drive is stopped is generally expressed as "MF", it may be written as AF and MF. The camera-side mode (AF setting value) selected by the camera-side mode selection means 211 is output from the camera microcomputer 206 to the lens microcomputer 111 via the camera communication unit 230 and the lens communication unit 130, and is acquired by the lens microcomputer 111. The camera-side mode selected by the camera-side mode selection means 211 is used to determine whether the focus control is to be AF-ON or AF-OFF when the lens-side mode 2 (CONTROL) is selected by the lens-side mode selection means 121.

[0036] With reference to FIG. 4, a description will be given of settings relating to MF interruption operations during AF control when lens-side mode 3 (AF) is selected by the lens-side mode selection means 121. In the camera device 200 of this embodiment, it is possible to set the interruption of MF operation by the operating ring 110 when the lens side mode 3 (AF) is set by operating the selection screen (MF interrupt switching means) displayed on the display unit 204.

[0037] Fig. 4(p) shows a state in which the AF-MF disabled mode has been selected, and MF operation is not possible when AF is executable (AF-ON). Fig. 4(q) shows a state in which the AF-MF enabled mode has been selected, and MF operation is possible even when AF is executable (AF-ON), and the focus lens group 105 is driven in response to the operation of the operation ring 110, even during AF drive.

[0038] 4(r) shows a state in which the MF possible after AF mode is selected, in which AF is performed and MF operation is possible after in-focus determination is made. After MF operation after AF is performed, AF control may not be started until a predetermined amount of defocus amount is detected or a predetermined time has passed.

[0039] Although a configuration has been shown in which the settings related to MF operation during AF can be arbitrarily set by a setting operation on a selection screen displayed on the display unit 204 in the camera device 200, the present invention is not limited to this configuration. The settings may be changed by a mechanical switch, or a configuration may be used in which any one of a mode in which MF is not possible during AF, a mode in which MF is possible during AF, or a mode in which MF is possible after AF is held as a predetermined value in the imaging device 300.

[0040] The AF drive state and the operation ring state based on the combination of the camera side mode selection means 211 and the lens side mode selection means 121 of this embodiment will be described with reference to FIG. In the case of lens side mode 1 (MF), the AF drive state is AF-OFF regardless of the selection made by the camera side mode selection means 211. In the operation ring state, the operation target of the operation ring 110 is the focus lens group 105, and MF operation is possible by operating the operation ring 110.

[0041] In the case of lens side mode 2 (CONTROL), the state of the operation ring is determined by the shooting parameters set by a setting means (not shown). Regarding the AF drive state, if camera side mode 1 is selected by the camera side mode selection means 211, AF-ON is set, and if camera side mode 2 is selected, AF-OFF is set.

[0042] In the case of lens side mode 3 (AF), the AF drive state is AF-ON regardless of the selection made by the camera side mode selection means 211. The operation ring state is either in such a way that the operation target of the operation ring 110 becomes the focus lens group 105 and MF interruption operation is possible, or in such a state that nothing is assigned as the operation target of the operation ring 110, depending on the setting related to the MF interruption operation during AF described above.

[0043] As described above, the combination of the camera side mode selection means 211 and the lens side mode selection means 121 enables the operator to switch between the AF drive state and the operation ring state mode by operating one operation means of the lens device 100 (the lens side mode selection means 121).

[0044] For example, when adjusting the exposure (aperture value) while viewing the image being photographed after the image is once in focus, the camera-side mode 2 (AF-OFF) is selected with the camera-side mode selection means 211. After focusing with the lens-side mode 1 (MF) or lens-side mode 3 (AF) selected, the lens-side mode 2 (CONTROL) can be switched to perform a parameter operation (exposure adjustment) that has been set in advance without changing the focus state. During this operation, the photographer can change the desired mode and photograph the subject by only operating the lens-side mode selection means 121 of the lens device 100. This makes it possible to realize mode switching that can prevent the focus state from being changed by AF at a timing unintended by the photographer during photographing operation by only operating the lens-side mode selection means 121.

[0045] Furthermore, if you want to perform MF operation urgently when the desired focus state cannot be achieved by AF, it is advisable to select camera-side mode 1 (AF-ON) with the camera-side mode selection means 211. This makes it possible to set the AF-ON state and a state in which shooting parameters can be operated unless lens-side mode 1 (MF) is selected with the lens-side mode selection means 121. Furthermore, by switching to lens-side mode 1 (MF) as necessary, MF operation by operating the operation ring 110 can be immediately performed.

[0046] Furthermore, it is desirable for the lens-side mode selection means 121 to have each mode arranged in the order shown in Fig. 2. By arranging lens-side modes 1 and 3, which are switched frequently, at both ends and lens-side mode 2, which is used relatively infrequently and is switched to other modes relatively infrequently after being set, in the center, visual confirmation is not required to switch to lens-side modes 1 and 3, improving operability.

[0047] When switching to lens side mode 2 (CONTROL), shooting parameters that can be manipulated include, for example, exposure (aperture value), ISO sensitivity, shutter speed, and white balance adjustment. EXAMPLES

[0048] A lens device and an imaging device according to a second embodiment of the present invention will be described with reference to FIGS. 6 and 7, the lens device of this embodiment has a lens side mode selection means 321, which allows switching between two modes: lens side mode 1 (MF: first mode) and lens side mode 2 (CONTROL: second mode). Also, the camera side mode selection means 211 is configured to select using a focus mode selection screen displayed on the display unit 204.

[0049] With reference to FIG. 8, the AF drive state and the operation ring state based on the combination of the selection on the lens side mode selection means 321 and the selection on the focus mode selection screen will be described. In the case of lens side mode 1 (MF), the AF drive state is AF-OFF regardless of the selection on the focus mode selection screen. In the operation ring state, the operation target of the operation ring 110 is the focus lens group 105, and MF operation is possible by operating the operation ring 110.

[0050] In the case of lens side mode 2 (CONTROL), the state of the operation ring is determined by the shooting parameters set by a setting means (not shown). Regarding the AF drive state, if camera side mode 1 is selected on the focus mode selection screen, AF-ON is set, and if camera side mode 2 is selected, AF-OFF is set.

[0051] In this embodiment, in order to save space and make the operating members of the lens device 100 smaller, three-value switching is replaced by two-value switching, and in order to reduce the number of operating members of the camera and prevent operational errors, mechanical switching is replaced by switching using the display unit 204.

[0052] By setting the camera side mode to 1, the photographer can switch between AF-ON and AF-OFF and the state of the operation ring simply by operating the lens side mode selection means 321 of the lens device.

[0053] By using a lens apparatus having the configuration of this embodiment, it is possible to provide a more compact and inexpensive camera system.

[0054] In the lens device according to this embodiment, the options for switching on the lens side mode selection means 321 are lens side mode 1 (MF) and lens side mode 2 (CONTROL), but the present invention is not limited to this. For example, in a product for entry-level users who only perform AF operations, the options for switching on the lens side mode selection means 321 may be lens side mode 2 (CONTROL) and lens side mode 3 (AF).

[0055] According to this configuration, for example, when adjusting the exposure while viewing the image being shot after the focus is achieved, the camera side mode 2 (AF-OFF) is selected on the focus mode selection screen. After focusing with the lens side mode 3 (AF) selected with the lens side mode selection means 321, the lens side mode selection means 321 is switched to the lens side mode 2 (CONTROL), allowing the user to perform a parameter operation (exposure adjustment) that has been set in advance without changing the focus state. During this operation, the photographer can take a desired photograph by only operating the lens device 100. This allows the mode switching that can prevent the focus state from being changed by AF at a timing unintended by the photographer during shooting operation to be realized by only operating the lens side mode selection means 321.

[0056] In the illustrated embodiment, the lens device is a so-called interchangeable lens, and the interchangeable lens and the camera device are configured to be detachable, but the present invention is not limited to this configuration. The present invention can also be applied to an imaging device in which the lens device and the camera device are integrated, rather than being configured to be detachable, and similar effects can be obtained.

[0057] The disclosure of this embodiment includes the following configuration. (Configuration 1) A lens device connected to a camera device, A focus lens group movable in the optical axis direction; A drive unit that drives the focus lens group; An operation input means; a mode switching means for selecting between autofocus and manual focus, and for switching between a plurality of modes including a first mode and a second mode relating to the selection of an operation target of the operation input means; A lens control unit is provided. The lens control unit includes: In the first mode, the driving unit is controlled based on an operation input from the operation input means, and driving of the focus lens group is controlled by manual focusing; A lens device characterized in that, in the second mode, a control signal for changing a shooting parameter is output based on an input from the operation input means, and when a setting value input from the camera device indicates that autofocus is possible, the drive unit is controlled by autofocus based on an AF control signal input from the camera device, and when the setting value indicates that autofocus is not possible, autofocus is not performed. (Configuration 2) the mode switching means is capable of switching among the first mode, the second mode, and a third mode; 2. The lens device according to configuration 1, wherein in the third mode, the lens control unit controls the drive unit by autofocus based on the AF control signal. (Configuration 3) 3. The lens device according to configuration 1 or 2, wherein the operation input means is a rotation operation member rotatably held on the outer periphery of a lens barrel of the lens device. (Configuration 4) 4. The lens device according to any one of configurations 1 to 3, wherein the mode switching means is a slide switch. (Configuration 5) A lens device according to any one of configurations 1 to 4, a camera device including an image sensor that receives an image formed by the lens device, and a camera control unit that generates the AF control signal based on an output from the image sensor; The camera device is an imaging device characterized in that it has an AF switching means for switching the setting value related to autofocus in the second mode. (Configuration 6) The lens device according to configuration 2, a camera device including an image sensor that receives an image formed by the lens device, and a camera control unit that generates the AF control signal based on an output from the image sensor; a MF interrupt switching means for switching between an MF disabled mode and an MF enabled mode; In the MF disabled mode, in the third mode, the drive unit cannot be controlled based on the operation input from the operation input means, In the MF enabled mode, in the third mode, the lens control unit controls the drive unit based on the operation input from the operation input unit. (Configuration 7) the MF interrupt switching means switches between the MF possible mode, the MF not possible mode, and a post-AF MF possible mode; The imaging device described in configuration 6, characterized in that in the AF after MF possible mode, when the operation input is received from the operation input means after focus determination is made by autofocus in the third mode, the lens control unit controls the drive unit based on the operation input. (Configuration 8) The imaging device described in configuration 7, characterized in that in the MF possible after AF mode, in the third mode, if the operation input is received from the operation input means after a focus determination is made by autofocus, and the lens control unit controls the drive unit based on the operation input, autofocus control is not started until a predetermined defocus amount is detected. (Configuration 9) The imaging device described in configuration 7, characterized in that in the MF possible after AF mode, in the third mode, if there is an operation input from the operation input means after a focus determination is made by autofocus, and the lens control unit controls the drive unit based on the operation input, the imaging device does not perform control by autofocus until a predetermined time has elapsed after there is no change in the operation input. (Configuration 10) 10. The imaging device according to any one of configurations 6 to 9, wherein the MF interrupt switching means is provided in the camera device. (Configuration 11) 11. The imaging device according to any one of configurations 5 to 10, wherein the lens device and the camera device are configured to be detachable from each other. (Configuration 12) The imaging device according to any one of configurations 5 to 10, wherein the lens device and the camera device are integrally configured. (Configuration 13) The imaging device according to any one of configurations 5 to 12, characterized in that when the second mode is selected, the shooting parameter that is changed based on the input from the operation input means is any one of an aperture value, an ISO sensitivity, a shutter speed, and a white balance adjustment.

[0058] Although the preferred embodiments of the present invention have been described above, the present invention is not limited to these embodiments, and various modifications and changes can be made within the scope of the gist of the present invention, such as the selection mechanism, display names, and order of modes. [Explanation of symbols]

[0059] 100 Lens device 105 Focus Lenses 110 Operation ring (operation input means) 113 Focus drive unit (drive unit) 111 Lens microcomputer (lens control unit) 121, 321 Lens side mode selection means (mode switching means)

Claims

1. A lens device connected to a camera device, a drive unit that moves the focus lens group; an operating means operated by a user; a mode switching means for switching between a first mode and a second mode; a lens control unit; In the first mode, the lens control unit executes manual focusing by controlling the drive unit in response to an operation of the operation means, In the second mode, shooting parameters different from the parameters changed in the first mode are changed in response to operation of the operating means, and the lens control unit performs autofocusing to control the drive unit in response to a control signal from the camera device when the camera device is set to enable autofocusing, and does not perform autofocusing when the camera device is set to disable autofocusing.

2. the mode switching means is capable of switching among the first mode, the second mode, and the third mode, 2. The lens device according to claim 1, wherein in the third mode, the lens control unit executes the autofocus in response to the control signal, regardless of a setting of the camera device.

3. 2. The lens device according to claim 1, wherein the operating means is rotatable around the optical axis of the lens device.

4. 2. The lens device according to claim 1, wherein the mode switching means is a switch operated by a user.

5. The lens device described in Claim 1, characterized in that in the first mode, the lens control unit performs the manual focus regardless of the settings of the camera device.

6. The lens device described in claim 1, characterized in that the shooting parameters include any of aperture value, ISO sensitivity, shutter speed, and white balance adjustment.

7. A lens device as described in claim 1, characterized in that it is detachable from the camera device.

8. A camera device comprising: the lens device according to any one of claims 1 to 7; and the camera device; The camera device is an imaging device characterized in that it has an AF switching means capable of switching between the autofocus enabled setting and the autofocus disabled setting.

9. A camera device comprising: the lens device according to claim 2; and the camera device; In the third mode, the imaging apparatus is capable of switching whether or not the manual focus is permitted.

10. The imaging device described in Claim 9, characterized in that in the third mode, the manual focus is permitted when the operating means is operated after the autofocus is executed.

11. The imaging device described in Claim 10, characterized in that in the third mode, if the manual focus is performed after the autofocus is performed, the autofocus is not resumed until a predetermined defocus amount is reached.

12. The imaging device described in Claim 10, characterized in that in the third mode, if the manual focus is performed after the autofocus is performed, the autofocus is not resumed until a predetermined time has elapsed since the manual focus was performed.

13. The imaging device according to claim 9, wherein the camera device has an MF switching means for switching whether or not to allow manual focus.

14. The imaging device according to claim 13, wherein the MF switching means is a display unit operated by a user.