JP2016212352A5

JP2016212352A5 -

Info

Publication number: JP2016212352A5
Application number: JP2015098490A
Authority: JP
Filing date: 2015-05-13
Publication date: 2018-06-28
Anticipated expiration: 2035-05-13

Description

上記目的を達成するために、第１の本発明は、撮像装置に装着可能なレンズユニットであって、焦点調節のためのフォーカスレンズと、前記フォーカスレンズの位置を移動させるためのリング操作部材と、前記フォーカスレンズを駆動させる駆動手段と、前記撮像装置と情報を通信し、前記駆動手段を制御するレンズ制御手段とを有し、前記リング操作部材を介した操作に応じて焦点調節を行う場合に、前記レンズ制御手段は、前記撮像装置から焦点状態についての情報を受信し、当該情報に基づいて、前記フォーカスレンズの複数の駆動モードの中からいずれかを設定し、前記レンズ制御手段は、設定した前記駆動モードに基づいて、前記フォーカスレンズの駆動速度を設定することを特徴とする。 In order to achieve the above object, a first aspect of the present invention is a lens unit that can be attached to an imaging apparatus, and includes a focus lens for focus adjustment, a ring operation member for moving the position of the focus lens, a driving means for driving the focus lens to communicate the pre-Symbol imaging device and information, and a lens control means for controlling the drive hand stage, the focus adjustment in response to the operation through the ring operating member When performing, the lens control unit receives information about the focus state from the imaging device, and sets one of a plurality of drive modes of the focus lens based on the information, and the lens control unit , based on the driving mode set, and wherein the benzalkonium set the driving speed of the focus lens.

第２の本発明は、焦点調節のためのフォーカスレンズと、前記フォーカスレンズの位置を移動させるためのリング操作部材と、前記フォーカスレンズを駆動させる駆動手段と、前記撮像装置と情報を通信し、前記駆動手段を制御するレンズ制御手段とを有するレンズユニットと、焦点状態を検出する焦点検出手段と、前記レンズユニットと情報を通信する制御手段とを有する撮像装置と、を備えるカメラシステムであって、前記リング操作部材を介した操作に応じて焦点調節を行う場合に、前記制御手段は、前記焦点検出手段によって検出された焦点状態についての情報を前記レンズ制御手段に送信し、当該情報に基づいて、前記レンズ制御手段は、前記フォーカスレンズの複数の駆動モードの中からいずれかを設定し、設定した前記駆動モードに基づいて、前記フォーカスレンズの駆動速度を設定することを特徴とする。 The second aspect of the present invention communicates information with a focus lens for focus adjustment, a ring operation member for moving the position of the focus lens, a drive means for driving the focus lens, and the imaging device, A camera system comprising: a lens unit that includes a lens control unit that controls the driving unit; a focus detection unit that detects a focus state; and an imaging apparatus that includes a control unit that communicates information with the lens unit. , when performing focus adjustment in accordance with operation via the pre-Symbol ring operating member, said control means transmits the information about the focus state detected by the focus detector to said lens controller, in the information The lens control means sets one of a plurality of drive modes of the focus lens and sets the set drive mode. Based on the de features a set Teisu Rukoto the driving speed of the focus lens.

Claims

A lens unit that can be attached to an imaging device,
A focus lens for focus adjustment;
A ring operating member for moving the position of the focus lens;
Drive means for driving the focus lens ;
Communicating the previous SL imaging device and information, and a lens control means for controlling the drive hands stage,
When focus adjustment is performed according to an operation via the ring operation member, the lens control unit receives information about the focus state from the imaging device, and based on the information, a plurality of driving of the focus lens Set one of the modes,
The lens control means, based on the driving mode set, a lens unit, wherein the benzalkonium set the driving speed of the focus lens.

The information about the focus state includes information about the reliability of focus detection,
When the reliability is equal to or lower than the first threshold, the lens control unit sets the driving mode to a first mode for setting the driving speed of the focus lens according to the rotation speed of the ring operation member. The lens unit according to claim 1.

The information about the focus state includes information about the defocus amount,
3. The lens unit according to claim 2, wherein when the reliability is higher than the first threshold, the lens control unit sets the drive mode according to the defocus amount.

When the reliability is higher than the first threshold and the defocus amount is less than or equal to the second threshold, the lens control unit changes the drive mode to the focus lens according to the rotation amount of the ring operation member. The lens unit according to claim 3, wherein the second mode for setting the driving speed is set to a second mode.

The information about the focus state includes information about the defocus direction,
When the reliability is higher than the first threshold and the defocus amount is larger than the second threshold, the lens control unit sets the drive mode to a third mode,
In the third mode, the lens control unit is configured to control the focus lens based on either the defocus amount or the rotation speed of the ring operation member according to the rotation direction of the ring operation member and the defocus direction. The lens unit according to claim 4, wherein whether to set a driving speed is switched.

In the third mode, the lens control unit sets the driving speed of the focus lens based on the defocus amount when the rotation direction of the ring operation member corresponds to the defocus direction, and performs the ring operation. 6. The lens unit according to claim 5 , wherein when the rotation direction of the member does not correspond to the defocus direction, the drive speed of the focus lens is set based on the rotation speed of the ring operation member.

Lens display means for displaying information;
7. The lens control unit according to claim 1, wherein the lens control unit controls the lens display unit so as to perform display based on the focus state in a predetermined form that differs according to the drive mode. The lens unit described.

The lens unit according to claim 7 , wherein the lens control unit controls the lens display unit to perform display based on the focus state so as to indicate that the lens is in focus.

The lens unit according to claim 6 or 7 , wherein the information about the focus state includes information about a defocus direction, and performs display based on the focus state so as to indicate the defocus direction.

When the imaging apparatus cannot transmit information about the focus state, the lens control unit sets the drive mode of the focus lens according to the rotation speed of the ring operation member . The lens unit according to claim 1 , wherein the lens unit is in a mode.

An imaging apparatus to which the lens unit according to any one of claims 1 to 10 can be attached,
Focus detection means for detecting the focus state;
Control means for communicating information with the lens unit;
The image pickup apparatus, wherein the control unit transmits information about the focus state detected by the focus detection unit to the lens unit.

A focus lens for adjusting the focus, a ring operation member for moving the position of the focus lens, a drive unit for driving the focus lens, and a lens control for communicating the information with the imaging device and controlling the drive unit A lens unit having means;
An imaging device having focus detection means for detecting a focus state, and control means for communicating information with the lens unit;
A camera system comprising :
When performing focus adjustment in accordance with operation via the pre-Symbol ring operating member, said control means transmits the information about the focus state detected by the focus detector to said lens controller,
Based on the information, the lens control unit sets any one from among a plurality of drive modes of the focus lens based on the driving mode set, set Teisu Rukoto the driving speed of the focus lens A camera system characterized by

The information about the focus state includes information about the reliability of focus detection,
When the reliability is equal to or lower than the first threshold, the lens control unit sets the driving mode to a first mode for setting the driving speed of the focus lens according to the rotation speed of the ring operation member. The camera system according to claim 12 , wherein:

The information about the focus state includes information about the defocus amount,
14. The camera system according to claim 13 , wherein when the reliability is higher than the first threshold, the lens control unit sets the drive mode according to the defocus amount.

When the reliability is higher than the first threshold and the defocus amount is less than or equal to the second threshold, the lens control unit changes the drive mode to the focus lens according to the rotation amount of the ring operation member. The camera system according to claim 14 , wherein the second mode for setting the driving speed is set.

The information about the focus state includes information about the defocus direction,
When the reliability is higher than the first threshold and the defocus amount is larger than the second threshold, the lens control unit sets the drive mode to a third mode,
In the third mode, the lens control unit is configured to control the focus lens based on either the defocus amount or the rotation speed of the ring operation member according to the rotation direction of the ring operation member and the defocus direction. The camera system according to claim 15 , wherein whether to set a driving speed is switched.

In the third mode, the lens control unit sets the driving speed of the focus lens based on the defocus amount when the rotation direction of the ring operation member corresponds to the defocus direction, and performs the ring operation. The camera system according to claim 16, wherein when the rotation direction of the member does not correspond to the defocus direction, the drive speed of the focus lens is set based on the rotation speed of the ring operation member.

Provided with display means for displaying information in at least one of the lens unit and the imaging device,
16. The camera system according to claim 10, wherein display based on the focus state is performed on the display unit according to a predetermined form that varies depending on the driving mode.

The lens control means transmits information indicating whether display based on the focus state is possible in the lens unit to the control means,
19. The camera system according to claim 18 , wherein when the display based on the focus state cannot be performed in the lens unit, the image pickup apparatus performs display based on the focus state.

When the imaging apparatus cannot transmit information about the focus state, the lens control unit sets the drive mode of the focus lens according to the rotation speed of the ring operation member . The camera system according to any one of claims 10 to 19 , wherein the camera system is in a mode.

A focus lens for adjusting the focus, a ring operation member for moving the position of the focus lens, a drive means for driving the focus lens, and a lens display means for displaying information, which are attached to the imaging device A control method of a possible lens unit,
A communication step of communicating information with the imaging device;
Anda drive control step of controlling the driving means,
When performing focus adjustment according to the operation through the ring operation member,
In the communication step, information about a focus state is received from the imaging device,
Based on the information, in the driving control step, set one from among a plurality of drive modes of the focus lens based on the driving mode set, set Teisu Rukoto the driving speed of the focus lens A method for controlling a lens unit.