JP2020071398A5 - Lens device, image pickup device, and their control method - Google Patents

Description

The present invention, lenses apparatus, imaging apparatus, and a control method thereof.

The present invention, even when the shift position of the image circle of the lenses equipment, the entire apparatus without increasing the size of, and to realize the secure movement range of the image sensor during image stabilization.

Lens system of the present invention is a detachable lens unit to the imaging device having the hand movement available-imaging element upon vibration reduction, an optical system for forming an image of an object, shooting conditions and the optical system corresponding thereto It is characterized by having a storage unit that stores first information indicating a relationship with the position information of the image circle, and a transmission unit that transmits at least a part of the first information to the image pickup apparatus.

Imaging apparatus of the present invention is an imaging apparatus detachable lens apparatus having an optical system for forming an image of an object, the control unit for controlling the image pickup element movable upon vibration reduction, the movement of the pre-Symbol imaging element has the door, the control unit, the lens unit has been transmitted from, and have use at least a portion of the first information indicating a relationship between the imaging condition and the position information of the image circle of the optical system corresponding thereto, and setting the origin position of the imaging element of the time the anti-vibration.

According to the present invention , even if the position of the image circle of the lens device is deviated, it is possible to secure the moving range of the image sensor at the time of vibration isolation without increasing the size of the entire device.

Claims (30)

A lens apparatus detachably mountable to an image pickup apparatus having a hand movement available-imaging element upon vibration reduction,
The optical system that forms the image of the object,
A storage unit that stores first information indicating the relationship between the shooting conditions and the position information of the image circle of the optical system corresponding to the shooting conditions.
A lens device including a transmission unit that transmits at least a part of the first information to the image pickup device. Position information of the image circle, the posture of the lens apparatus or the imaging apparatus, a zoom position of the optical system, the focus position of the optical system, and varies depending on the at least one aperture position location of the optical system The lens device according to claim 1. Before SL storage unit stores second information indicating a relationship between the imaging condition and the size information of the image circle of the optical system corresponding thereto,
The lens device according to claim 1 or 2, wherein the transmission unit transmits at least a part of the second information to the image pickup device. Size information of the image circle, the posture of the lens apparatus or the imaging apparatus, a zoom position of the optical system, the focus position of the optical system, and varies depending on the at least one aperture position location of the optical system The lens device according to claim 3, wherein the lens device is characterized. The lens device according to any one of claims 1 to 4, wherein the transmitting unit collectively transmits all of the first information to the imaging device. The first information transmitted by the transmission unit to the image pickup apparatus is characterized by including information indicating the relationship between the shooting conditions at the time of the transmission and the position information of the image circle of the optical system corresponding thereto. The lens device according to any one of claims 1 to 5. The optical system includes a hand move optical element upon said image stabilization,
The lens device according to any one of claims 1 to 6 , further comprising a control unit for moving the optical element in order to correct the positional deviation of the image circle of the optical system. Wherein the control unit, when the correction of the positional deviation, characterized in that the center of the images circle moves the previous SL optical element so as to approach the origin position of the center of the imaging element of the time the anti-vibration Item 7. The lens device according to item 7. The image sensor moves to correct the misalignment,
Wherein, in accordance with the focal length of the front Symbol optical science system in claim 7 or 8, characterized in that varying the ratio of the moving amount of the optical element and the imaging device when the correction of the positional deviation The lens device described. Wherein, the ratio of the moving amount of the optical element when correcting the positional deviation of the case before Kiase point distance is a first distance, the focal distance is second shorter than the first distance The lens device according to claim 9, wherein the lens device is made larger than the ratio of the movement amount of the optical element at the time of correcting the positional deviation when the focal length is. The optical system includes an optical element that can be moved during vibration isolation.
Any one of claims 1 to 10, wherein the control unit makes the ratio of the amount of movement of the optical element and the image pickup element at the time of vibration isolation different depending on the focal length of the optical system. The lens device described in. The control unit sets the ratio of the amount of movement of the optical element at the time of vibration isolation when the focal length is the first distance at a second focal length whose focal length is shorter than the first distance. The lens device according to claim 11, wherein the optical element is made smaller than the ratio of the movement amount of the optical element at the time of vibration isolation in a certain case. An image pickup device in which a lens device having an optical system for forming an image of an object is removable.
An image sensor that can be moved for vibration isolation,
And a control unit for controlling the movement of the front Symbol image pickup device,
Wherein the control unit, the lens unit has been transmitted from, and have use at least a portion of the first information indicating a relationship between the imaging condition and the position information of the image circle of the optical system corresponding thereto, of when the vibration-proof imaging apparatus characterized by setting the origin position of the imaging element. The position information of the image circle is characterized by being different depending on at least one of the posture of the lens device or the image pickup device, the zoom position of the optical system, the focus position of the optical system, and the aperture position of the optical system. The imaging device according to claim 13. Wherein the control unit, transmitted from the lens unit, and have use at least a portion of the second information indicating a relationship between the imaging condition and the size information of the image circle of the optical system corresponding thereto, in front Kibo vibration The imaging device according to claim 13 or 14, wherein the movable amount of the imaging element is set. The size information of the image circle is characterized by being different depending on at least one of the posture of the lens device or the image pickup device, the zoom position of the optical system, the focus position of the optical system, and the aperture position of the optical system. The imaging device according to claim 15. The imaging device according to any one of claims 13 to 16, wherein the control unit collectively receives all of the first information from the lens device. The control unit includes information indicating the relationship between the photographing conditions at the time of the transmission and the position information of the image circle of the optical system corresponding thereto in the first information transmitted from the lens device. If not, the image pickup apparatus according to any one of claims 13 to 17, characterized in that for setting the origin position by using a more acquired information to the interpolation computation using the first information. The first information transmitted from the lens device includes information indicating a relationship between a shooting condition at the time of the transmission and the position information of the image circle of the optical system corresponding thereto. The imaging apparatus according to any one of 13 to 17. The control unit, that the center of the front SL imaging device moves the image pickup element so as to approach the center of the image circle of the optical system, to any one of claims 13 to 19 for setting the origin position The image sensor described. The optical system includes a hand move optical element upon setting of the origin position,
Any of claims 13 to 20, wherein the control unit makes the ratio of the amount of movement of the optical element and the image pickup element different when setting the origin position according to the focal length of the optical system. the imaging apparatus according to an item. The control unit sets the ratio of the amount of movement of the image sensor when setting the origin position when the focal length is the first distance to a second focal length whose focal length is shorter than the first distance. The image pickup apparatus according to claim 21, wherein the image sensor is made smaller than the ratio of the movement amount of the image pickup device when the origin position is set in the case of a distance. The optical system includes a hand move optical element upon said image stabilization,
One of claims 13 to 22, wherein the control unit makes the ratio of the amount of movement of the optical element and the image pickup element at the time of vibration isolation different depending on the focal length of the optical system. The imaging device according to. The control unit sets the ratio of the amount of movement of the image sensor at the time of vibration isolation when the focal length is the first distance at a second focal length whose focal length is shorter than the first distance. The image pickup apparatus according to claim 23, wherein the image sensor is made larger than the ratio of the movement amount of the image pickup element at the time of vibration isolation in a certain case. Wherein, prior SL in response to light chemical system size information of the image circle of any one of claims 21 to 24, characterized in that varying the ratio of the moving amount of the optical element and the imaging element The image pickup apparatus according to. Wherein, the optical at least a portion between the attachment lens before sharp lens device if it has been attached to the imaging device via the attachment lens, the first information received from the previous sharp lens device The imaging apparatus according to any one of claims 13 to 25, wherein the origin position is set using the characteristics. It is a control method of a lens device having an optical system that can be attached to and detached from an image sensor having a movable image sensor for vibration isolation and forms an image of an object.
Control at least a portion of the first information indicating a relationship between the imaging condition and the position information of the image circle of the optical system corresponding thereto, and having a steps which cause transmitted to the imaging device from said lens device Method. A lens device having an optical system for forming an image of an object is removable , and is a control method for an image pickup device having an image pickup element that can be moved during vibration isolation.
Using at least a part of the first information transmitted from the lens device indicating the relationship between the photographing conditions and the position information of the image circle of the optical system corresponding thereto, the origin of the image pickup device at the time of vibration isolation is used. control method characterized by having steps for setting the position to the image pickup device. A program characterized by executing a process according to the control method according to請Motomeko 27 or 28 to the computer. Storage medium characterized by storing a program according to請Motomeko 2 9.