JP-7855556-B2 - Accessory device, imaging device, control method for the accessory device and imaging device, and program

Inventors

• 鈴木 和音

Assignees

• キヤノン株式会社

Dates

Publication Date

20260508

Application Date

20230824

Claims (10)

1. An accessory device that can be attached to an imaging device, The first optical system and, The second optical system and The system includes control means for controlling the first optical system and the second optical system, The optical axes of the first optical system and the second optical system do not coincide with each other. The control means is It is possible to switch between a first mode in which the first optical system and the second optical system are driven simultaneously, and a second mode in which one of the first optical system and the second optical system is driven. Depending on the imaging conditions, the timing of switching from the first mode to the second mode is varied. An accessory device characterized in that, in the first mode, when an instruction to change from the first mode to the second mode is received and the imaging state is in a predetermined state, the first mode is maintained.
2. The accessory device according to claim 1, characterized in that the control means changes from the first mode to the second mode after the predetermined state has ended.
3. The control means acquires information regarding the imaging state from the imaging device, The accessory device according to claim 1, characterized in that the predetermined state is at least one of the imaging state being during video recording or continuous still image recording.
4. The control means acquires information regarding the imaging state from the imaging device based on the state of the imaging operation means of the imaging device that can be operated by the user. The accessory device according to claim 1, characterized in that the predetermined state is a state in which the imaging operation means is pressed.
5. The accessory device according to claim 1, characterized in that the control means acquires the change instruction based on the first communication command received from the imaging device.
6. The accessory device according to claim 1, characterized in that the control means acquires the change instruction based on the state of the mode setting means that can be operated by the user.
7. The accessory device according to claim 6, characterized in that, when the control means receives a second communication command instructing it to issue the change instruction based on a first communication command received from the imaging device, it does not change from the first mode to the second mode based on the change instruction based on the state of the mode setting means of the imaging device that can be operated by the user.
8. The accessory device according to any one of claims 1 to 7, characterized in that the accessory device is a lens device.
9. A method for controlling an accessory device that can be attached to an imaging device, In the first mode, the first optical system and the second optical system are driven simultaneously. A step of obtaining an instruction to change from the first mode to a second mode that drives one of the first optical system and the second optical system, The step of changing from the first mode to the second mode in accordance with the change instruction, The optical axes of the first optical system and the second optical system do not coincide with each other. The first mode and the second mode are switchable. Depending on the imaging conditions, the timing of switching from the first mode to the second mode is varied. A control method for an accessory device, characterized in that, in the first mode, when an instruction to change from the first mode to the second mode is received and the imaging state is in a predetermined state, the first mode is maintained.
10. A program characterized by causing a computer to execute the control method for the accessory device described in claim 9 .

Description

This invention relates to an accessory device, an imaging device, a control method for the accessory device and the imaging device, and a program. Conventionally, a known method for capturing stereoscopic images involves connecting a compound lens unit, which produces multiple images from different viewpoints, to a standard monocular camera. Images captured using this method are recorded as a single image in the camera body. By displaying the image formed in the left-eye region on a head-mounted display or similar device, visible only to the observer's left eye, and the image formed in the right-eye region on the observer's right eye, the observer can view a stereoscopic image. Patent Document 1 discloses a lens device comprising a first focus adjustment unit connected to both the right-eye optical system and the left-eye optical system, and a second focus adjustment unit connected to either the right-eye optical system or the left-eye optical system. Japanese Patent Publication No. 2023-37539 This is a diagram showing the configuration of the camera system in each embodiment.This diagram shows the configuration of the camera control unit and lens control unit in each embodiment.This diagram illustrates the adjustment of the focus difference between the right eye lens unit and the left eye lens unit in each embodiment.This flowchart shows a control method for setting the drive mode of an interchangeable lens in Example 1 based on a communication command from the camera.This flowchart shows the control method for setting the drive mode of the interchangeable lens using the operating unit in Example 1.This flowchart shows a control method for an interchangeable lens in Example 1 that sets the drive mode according to the state of the camera.This flowchart shows the control method in Example 2, in which the camera sends a command to set the drive mode to the interchangeable lens according to the state of the camera. The embodiments of the present invention will be described in detail below with reference to the drawings. First, with reference to Figure 1, the camera system (imaging system) 1 in each embodiment will be described. Figure 1 is a configuration diagram (top view) of the camera system 1. The imaging system 1 includes a camera (imaging device) 10 and an interchangeable lens (lens device, accessory device) 100 that can be attached to the camera 10. Note that each embodiment is also applicable to imaging systems in which the imaging device and lens device are integrated. Furthermore, while each embodiment describes the interchangeable lens 100 as an accessory device, it is not limited to this. Each embodiment is also applicable to accessory devices other than the interchangeable lens 100 (adapters such as extenders). The adapter is configured to be directly attached to the camera 10 (attachable between the camera 10 and the interchangeable lens 100), or to be indirectly attached to the camera 10 via the interchangeable lens 100. The camera 10 and the interchangeable lens 100 each have a camera mount 24 and a lens mount 103, respectively, which are equipped with electrical contacts for supplying power from the camera 10 to the interchangeable lens 100 and for mutual communication. The interchangeable lens 100 includes a right-eye lens unit (right-eye optical system, first optical system) 101R and a left-eye lens unit (left-eye optical system, second optical system) 101L arranged in parallel with the right-eye lens unit 101R. The camera 10 comprises an image sensor 11, an A/D conversion unit 12, an image processing unit 13, a display unit 14, an operation unit 15, a camera control unit 17, and a storage unit 18. The image sensor 11 is a photoelectric conversion element such as a CMOS (Complementary Metal-Oxide-Semiconductor) sensor or a CCD (Charge Coupled Device) sensor. The image sensor 11 photoelectrically converts the subject image formed by the right eye lens unit 101R and the left eye lens unit 101L to output an electrical signal (analog electrical signal). The A/D conversion unit 12 converts the analog electrical signal output from the image sensor 11 into a digital signal. The image processing unit 13 generates an image (image data) by performing various image processing operations on the digital signal. The image generated by the image processing unit 13 is displayed on the display unit 14 or stored in the storage unit 18, such as a storage medium. The operation unit 15 includes a power switch for turning the camera 10 on and off, a shooting switch for starting still image or video recording, and selection/setting switches for configuring the camera 10 and interchangeable lens 100. The camera control unit 17 is a control means including a microcomputer such as a CPU, and controls the image processing unit 13 and communication with the interchangeable lens 100 in response to signals from the operation unit 15 based on user operations. The interchangeable lens 100 has prisms 106R, 107R, 106L, and 1