JPWO2021131618A5 - - Google Patents
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- JPWO2021131618A5 JPWO2021131618A5 JP2021567159A JP2021567159A JPWO2021131618A5 JP WO2021131618 A5 JPWO2021131618 A5 JP WO2021131618A5 JP 2021567159 A JP2021567159 A JP 2021567159A JP 2021567159 A JP2021567159 A JP 2021567159A JP WO2021131618 A5 JPWO2021131618 A5 JP WO2021131618A5
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- Prior art keywords
- cylinder
- detection
- mechanism according
- unit
- detection mechanism
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- 238000001514 detection method Methods 0.000 claims 36
- 230000002093 peripheral effect Effects 0.000 claims 5
- 230000003287 optical effect Effects 0.000 claims 2
Claims (14)
前記第１筒の内周側又は外周側に配置される第２筒と、
前記第１筒に対する前記第２筒の位置を検出する第１検出部と、
第３筒と、
前記第３筒の内周側又は外周側に配置される第４筒と、
前記第３筒に対する前記第４筒の位置を検出する第２検出部と、
前記第１検出部と前記第２検出部とに基づいて焦点距離を算出する制御部と、
を備える位置検出機構。 The first cylinder and
The second cylinder arranged on the inner peripheral side or the outer peripheral side of the first cylinder, and
A first detection unit that detects the position of the second cylinder with respect to the first cylinder,
With the third cylinder
The fourth cylinder arranged on the inner peripheral side or the outer peripheral side of the third cylinder, and
A second detection unit that detects the position of the fourth cylinder with respect to the third cylinder, and
A control unit that calculates the focal length based on the first detection unit and the second detection unit, and
Position detection mechanism.
請求項１に記載の位置検出機構。 The first detection unit has a detection element and a detected unit, the detection element is arranged in one of the first cylinder and the second cylinder, and the detection unit is the first cylinder and the first cylinder. Placed on the other side of the two cylinders,
The position detection mechanism according to claim 1.
請求項２に記載の位置検出機構。 The first detection unit detects the amount of movement of the other with respect to the one.
The position detection mechanism according to claim 2.
請求項１から請求項３の何れか１項に記載の位置検出機構。 The second detection unit is arranged in one of the third cylinder and the fourth cylinder, and detects the position of the other with respect to the one.
The position detection mechanism according to any one of claims 1 to 3.
請求項１から請求項４の何れか１項に記載の位置検出機構。 The first cylinder and the second cylinder are arranged on the outer peripheral side of the third cylinder and the fourth cylinder.
The position detection mechanism according to any one of claims 1 to 4.
請求項１から請求項５の何れか１項に記載の位置検出機構。 At least one of the third cylinder and the fourth cylinder holds a lens.
The position detection mechanism according to any one of claims 1 to 5.
前記第３筒は前記第４筒に対して相対的に移動可能である、
請求項１から請求項６の何れか１項に記載の位置検出機構。 The third cylinder and the fourth cylinder are movable in the optical axis direction, and are movable.
The third cylinder is movable relative to the fourth cylinder.
The position detection mechanism according to any one of claims 1 to 6.
前記第３筒は、前記第１筒が有する第２カム溝及び前記第４筒が有する直進溝に係合する第２カムフォロアを有する、
請求項７に記載の位置検出機構。 The fourth cylinder has a first cam follower that engages with a first cam groove of the first cylinder and a straight groove of the second cylinder.
The third cylinder has a second cam follower that engages with a second cam groove of the first cylinder and a straight groove of the fourth cylinder.
The position detection mechanism according to claim 7.
請求項１から請求項８の何れか１項に記載の位置検出機構。 A urging portion arranged between the third cylinder and the fourth cylinder is provided.
The position detection mechanism according to any one of claims 1 to 8.
請求項１から請求項９の何れか１項に記載の位置検出機構。 The second detection unit detects that the first cylinder and the second cylinder have moved relatively, and then the third cylinder and the fourth cylinder move relatively. Detect what you did,
The position detection mechanism according to any one of claims 1 to 9.
前記第２検出値を前記第１検出値で補正した補正情報をカメラボディに送信する通信部と、を備える
請求項１から請求項１０の何れか１項に記載の位置検出機構。 The control unit acquires the first detection value of the first detection unit and the second detection value of the second detection unit.
The position detection mechanism according to any one of claims 1 to 10, further comprising a communication unit that transmits correction information obtained by correcting the second detection value with the first detection value to the camera body.
前記制御部は、前記第１検出部の第１検出値及び前記第２検出部の第２検出値を取得し、前記第２検出値を前記第１検出値で補正した補正情報に基づいて前記駆動部を制御する、
請求項１から請求項１０の何れか１項に記載の位置検出機構。 Equipped with a drive unit that drives the lens
The control unit acquires the first detection value of the first detection unit and the second detection value of the second detection unit, and the second detection value is corrected by the first detection value based on the correction information. Control the drive unit ,
The position detection mechanism according to any one of claims 1 to 10.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2019239535 | 2019-12-27 | ||
| JP2019239535 | 2019-12-27 | ||
| PCT/JP2020/045277 WO2021131618A1 (en) | 2019-12-27 | 2020-12-04 | Position detection mechanism, lens barrel, and optical instrument |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JPWO2021131618A1 JPWO2021131618A1 (en) | 2021-07-01 |
| JPWO2021131618A5 true JPWO2021131618A5 (en) | 2022-06-28 |
| JP7435629B2 JP7435629B2 (en) | 2024-02-21 |
Family
ID=76574072
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2021567159A Active JP7435629B2 (en) | 2019-12-27 | 2020-12-04 | Position detection mechanism, lens barrel and optical equipment |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP7435629B2 (en) |
| WO (1) | WO2021131618A1 (en) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2564117B2 (en) * | 1986-05-08 | 1996-12-18 | チノン株式会社 | Lens barrel |
| JPH06181533A (en) * | 1992-03-12 | 1994-06-28 | Hitachi Ltd | Compact video camera, optical system, lens for camcorder with electronic zooming, and compact camcorder system |
| JP3869483B2 (en) * | 1996-02-20 | 2007-01-17 | ペンタックス株式会社 | Zoom lens camera with zoom finder |
| JPH1010397A (en) * | 1996-06-25 | 1998-01-16 | Canon Inc | Lens barrel and optical equipment provided with it |
| JP6223101B2 (en) * | 2013-10-03 | 2017-11-01 | キヤノン株式会社 | Optical device |
| JP6889334B2 (en) * | 2018-07-26 | 2021-06-18 | 富士フイルム株式会社 | Lens barrel, imaging device, position detection method and position detection program |
-
2020
- 2020-12-04 WO PCT/JP2020/045277 patent/WO2021131618A1/en active Application Filing
- 2020-12-04 JP JP2021567159A patent/JP7435629B2/en active Active
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