JP2017054127A5

JP2017054127A5 - Interchangeable lenses and cameras

Info

Publication number: JP2017054127A5
Application number: JP2016198157A
Authority: JP
Filing date: 2016-10-06
Publication date: 2017-11-02
Anticipated expiration: 2032-03-08

Description

本発明は、交換レンズおよびカメラに関する。
The present invention relates to an interchangeable lens and a camera .

従来の技術では、フォーカスレンズが合焦位置を過ぎて停止してしまうことがあった。In the conventional technique, the focus lens sometimes stops after the in-focus position.

発明の第１の態様による交換レンズは、撮像部を有するカメラに装着可能な交換レンズであって、第１フォーカスレンズと第２フォーカスレンズとを有する光学系と、前記光学系による像が前記撮像部に合焦する合焦位置へ向かう方向へ前記第１フォーカスレンズを移動させた後、前記合焦位置へ向かう方向へ移動した前記第１フォーカスレンズが停止すると推定される位置に基づく移動量、前記第２フォーカスレンズを移動させる移動部と、を備える。An interchangeable lens according to a first aspect of the invention is an interchangeable lens that can be attached to a camera having an imaging unit, and an optical system having a first focus lens and a second focus lens, and an image obtained by the optical system is the imaging An amount of movement based on a position estimated to stop the first focus lens that has moved in the direction toward the in-focus position after moving the first focus lens in the direction toward the in-focus position for focusing on the part; A moving unit for moving the second focus lens.
発明の第２の態様による交換レンズは、撮像部と、前記撮像部から出力される信号に基づく画像のコントラストを検出する検出部とを有するカメラに装着可能な交換レンズであって、第１フォーカスレンズと第２フォーカスレンズとを有する光学系と、前記光学系による像が前記撮像部に合焦する合焦位置へ向かう方向へ前記第１フォーカスレンズを移動させた後、前記第１フォーカスレンズの移動速度と前記検出部がコントラストを検出する周期とに基づく移動量、前記第２フォーカスレンズを移動させる移動部と、を備える。 An interchangeable lens according to a second aspect of the invention is an interchangeable lens that can be attached to a camera having an imaging unit and a detection unit that detects a contrast of an image based on a signal output from the imaging unit, and has a first focus. An optical system having a lens and a second focus lens; and after moving the first focus lens in a direction toward a focus position where an image by the optical system is focused on the imaging unit, the first focus lens A moving amount based on a moving speed and a period at which the detection unit detects contrast, and a moving unit that moves the second focus lens.
発明の第３の態様による交換レンズは、撮像部を有するカメラに装着可能な交換レンズであって、第１フォーカスレンズと第２フォーカスレンズとを有する光学系と、前記第１フォーカスレンズの位置を検出する検出部と、前記光学系による像が前記撮像部に合焦する合焦位置へ向かう方向へ前記第１フォーカスレンズを移動させた後、前記検出部により検出された前記第１フォーカスレンズの位置に基づく移動量、前記第２フォーカスレンズを移動させる移動部と、を備える。 An interchangeable lens according to a third aspect of the invention is an interchangeable lens that can be attached to a camera having an imaging unit, and includes an optical system having a first focus lens and a second focus lens, and a position of the first focus lens. A detection unit for detecting, and after moving the first focus lens in a direction toward a focus position where an image by the optical system is focused on the imaging unit, the first focus lens detected by the detection unit A moving amount based on the position, and a moving unit that moves the second focus lens.

発明の第４の態様によるカメラは、第１フォーカスレンズと第２フォーカスレンズとを有する光学系による像を撮像する撮像部と、前記撮像部から出力される信号に基づいて、前記光学系による像が前記撮像部に合焦する合焦位置を検出する検出部と、前記合焦位置へ向かう方向へ前記第１フォーカスレンズの位置を制御した後、前記合焦位置へ向かう方向へ移動した前記第１フォーカスレンズが停止すると推定される位置に基づく移動量、前記第２フォーカスレンズの位置を制御する制御部と、を備える。A camera according to a fourth aspect of the invention includes an imaging unit that captures an image by an optical system having a first focus lens and a second focus lens, and an image by the optical system based on a signal output from the imaging unit. Detecting a focus position for focusing on the imaging unit, and controlling the position of the first focus lens in the direction toward the focus position, and then moving in the direction toward the focus position. A control unit that controls a movement amount based on a position where the one focus lens is estimated to stop and a position of the second focus lens.
発明の第５の態様によるカメラは、フォーカスレンズを有する光学系による像を撮像する撮像部と、前記撮像部から出力される信号に基づいて、前記光学系による像が前記撮像部に合焦する合焦位置を検出する検出部と、前記フォーカスレンズが前記合焦位置へ向かう方向へ移動した後、前記フォーカスレンズが停止すると推定される位置に基づく移動量、前記撮像部を移動させる移動部と、を備える。 A camera according to a fifth aspect of the invention is based on an image pickup unit that picks up an image by an optical system having a focus lens and a signal output from the image pickup unit, and the image by the optical system is focused on the image pickup unit. A detection unit that detects a focus position; a movement amount based on a position where the focus lens is estimated to stop after the focus lens moves in a direction toward the focus position; and a movement unit that moves the imaging unit; .
発明の第６の態様によるカメラは、フォーカスレンズを有する光学系による像を撮像する撮像部と、前記フォーカスレンズの位置を検出する検出部と、前記光学系による像が前記撮像部に合焦する合焦位置へ前記フォーカスレンズが移動した後、前記検出部により検出された前記フォーカスレンズの位置に基づく移動量、前記撮像部を移動させる移動部と、を備える。 A camera according to a sixth aspect of the invention is an imaging unit that captures an image by an optical system having a focus lens, a detection unit that detects a position of the focus lens, and an image by the optical system is focused on the imaging unit. An amount of movement based on the position of the focus lens detected by the detection unit after the focus lens has moved to the in-focus position, and a moving unit that moves the imaging unit.

本発明によれば、適切に合焦させることができる。
According to this invention, it can focus appropriately.

Claims

An interchangeable lens that can be attached to a camera having an imaging unit,
  An optical system having a first focus lens and a second focus lens;
  It is estimated that the first focus lens that has moved in the direction toward the in-focus position stops after the first focus lens has been moved in the direction toward the in-focus position where the image by the optical system is focused on the imaging unit. A moving amount based on the position to be moved, a moving unit for moving the second focus lens;
  Interchangeable lens with

The interchangeable lens according to claim 1,
The moving unit is an interchangeable lens that moves the second focus lens based on a movement amount based on a distance between the position where the first focus lens moved in the direction toward the focus position is estimated to stop and the focus position. .

The interchangeable lens according to claim 1 or 2,
The moving unit outputs the moving speed of the first focus lens and the imaging unit as a moving amount based on a position estimated to stop the first focus lens that has moved in the direction toward the in-focus position. The period of detecting the contrast of the image based on the signal, and the movement amount based on the distance estimated to move from when the peak of the contrast is detected until the first focus lens stops, the second focus lens is moved. interchangeable lens.

An interchangeable lens that can be attached to a camera having an imaging unit and a detection unit that detects a contrast of an image based on a signal output from the imaging unit,
  An optical system having a first focus lens and a second focus lens;
  After moving the first focus lens in a direction toward the in-focus position where the image by the optical system is focused on the imaging unit, the moving speed of the first focus lens and the period at which the detection unit detects contrast A moving amount based on the moving unit for moving the second focus lens;
  Interchangeable lens with

The interchangeable lens according to claim 4,
The moving unit is estimated to move from the moving speed of the first focus lens, the period at which the detecting unit detects contrast, and the first focus lens to stop after passing the in-focus position. An interchangeable lens for moving the second focus lens based on the movement amount based on

The interchangeable lens according to claim 4 or 5,
The moving unit detects a moving speed of the first focus lens, a period at which the detection unit detects contrast, and a contrast peak detected by the detection unit until the first focus lens stops. An interchangeable lens that moves the second focus lens by a movement amount based on a distance estimated to move to the first position.

An interchangeable lens that can be attached to a camera having an imaging unit,
  An optical system having a first focus lens and a second focus lens;
  A detection unit for detecting a position of the first focus lens;
  An amount of movement based on the position of the first focus lens detected by the detection unit, after moving the first focus lens in a direction toward the in-focus position where the image by the optical system is focused on the imaging unit; A moving unit for moving the second focus lens;
  Interchangeable lens with

The interchangeable lens according to claim 7,
The moving unit is an interchangeable lens that moves the second focus lens by an amount of movement based on the position of the first focus lens and the focus position detected by the detection unit.

The interchangeable lens according to claim 7 or 8,
The moving unit is configured to move the second focus lens based on a distance between a position detected by the detection unit and the in-focus position when the first focus lens moved in a direction toward the in-focus position is stopped. Move the interchangeable lens.

The interchangeable lens according to any one of claims 1 to 9,
The moving unit is an interchangeable lens that moves the second focus lens when the in-focus position is detected.

The interchangeable lens according to any one of claims 1 to 10,
The moving unit is an interchangeable lens that moves the second focus lens in a direction different from a direction toward the in-focus position.

The interchangeable lens according to any one of claims 1 to 11,
When the first focus lens is moved in the direction toward the in-focus position, the moving unit moves based on a position estimated to stop the first focus lens that has moved in the direction toward the in-focus position. An interchangeable lens for moving the second focus lens.

The interchangeable lens according to any one of claims 1 to 12,
The moving unit is an interchangeable lens that finely moves the second focus lens while moving the first focus lens in a direction toward the in-focus position.

The interchangeable lens according to any one of claims 1 to 13,
The interchangeable lens in which the mass of the second focus lens is smaller than the mass of the first focus lens.

An imaging unit that captures an image by an optical system having a first focus lens and a second focus lens;
  Based on a signal output from the imaging unit, a detection unit that detects a focus position where an image by the optical system is focused on the imaging unit;
  A movement amount based on a position estimated to stop the first focus lens that has moved in the direction toward the in-focus position after controlling the position of the first focus lens in the direction toward the in-focus position; A control unit for controlling the position of the focus lens;
  With a camera.

The camera of claim 15, wherein
The said detection part is a camera which detects the direction which goes to the said focus position based on the contrast of the image based on the signal output from the said imaging part, while moving the said 2nd focus lens minutely.

An imaging unit that captures an image by an optical system having a focus lens;
  Based on a signal output from the imaging unit, a detection unit that detects a focus position where an image by the optical system is focused on the imaging unit;
  An amount of movement based on a position where the focus lens is estimated to stop after the focus lens moves in a direction toward the in-focus position, a moving unit that moves the imaging unit;
  With a camera.

The camera of claim 17,
The moving unit is a camera that moves the imaging unit based on a movement amount based on a distance between a position estimated to stop the focus lens that has moved in a direction toward the in-focus position and the in-focus position.

The camera according to claim 17 or 18,
The moving unit is an image based on a moving speed of the focus lens and a signal output from the imaging unit as a moving amount based on a position where the focus lens moved in a direction toward the in-focus position is estimated to stop. A camera that moves the imaging unit, a moving amount based on a period of detecting the contrast of the lens, a distance estimated from the time when the peak of the contrast is detected until the focus lens stops.

An imaging unit that captures an image by an optical system having a focus lens;
  A detection unit for detecting the position of the focus lens;
  After the focus lens moves to a focus position where an image by the optical system is focused on the imaging unit, a moving amount based on the position of the focus lens detected by the detection unit, a moving unit that moves the imaging unit When,
  With a camera.