JP4537800B2 - ズームレンズ鏡筒のズーム調整機構 - Google Patents
ズームレンズ鏡筒のズーム調整機構 Download PDFInfo
- Publication number
- JP4537800B2 JP4537800B2 JP2004235738A JP2004235738A JP4537800B2 JP 4537800 B2 JP4537800 B2 JP 4537800B2 JP 2004235738 A JP2004235738 A JP 2004235738A JP 2004235738 A JP2004235738 A JP 2004235738A JP 4537800 B2 JP4537800 B2 JP 4537800B2
- Authority
- JP
- Japan
- Prior art keywords
- lens
- zoom
- adjustment mechanism
- zoom adjustment
- frames
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 230000008878 coupling Effects 0.000 claims description 13
- 238000010168 coupling process Methods 0.000 claims description 13
- 238000005859 coupling reaction Methods 0.000 claims description 13
- 230000003287 optical effect Effects 0.000 claims description 9
- 230000010354 integration Effects 0.000 claims description 4
- 230000035945 sensitivity Effects 0.000 claims description 4
- 230000002093 peripheral effect Effects 0.000 description 10
- 210000000078 claw Anatomy 0.000 description 6
- 238000002788 crimping Methods 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
- G02B7/04—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification
- G02B7/10—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification by relative axial movement of several lenses, e.g. of varifocal objective lens
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/62—Optical apparatus specially adapted for adjusting optical elements during the assembly of optical systems
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B15/00—Optical objectives with means for varying the magnification
- G02B15/14—Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective
- G02B15/16—Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective with interdependent non-linearly related movements between one lens or lens group, and another lens or lens group
- G02B15/177—Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective with interdependent non-linearly related movements between one lens or lens group, and another lens or lens group having a negative front lens or group of lenses
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
- G02B7/022—Mountings, adjusting means, or light-tight connections, for optical elements for lenses lens and mount having complementary engagement means, e.g. screw/thread
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
- G02B7/023—Mountings, adjusting means, or light-tight connections, for optical elements for lenses permitting adjustment
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/60—Control of cameras or camera modules
- H04N23/69—Control of means for changing angle of the field of view, e.g. optical zoom objectives or electronic zooming
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Nonlinear Science (AREA)
- Lens Barrels (AREA)
Description
11a 12a 雄ねじ
11a’ 雄ねじ対応突起
11b 凸部
11c 12c 連動溝
12 第2レンズ固定枠
12b 凹部
13 第1レンズ移動枠
13a 14a 雌ねじ
13a’ リード溝
13b 14b カムフォロア
14 第2レンズ移動枠
15 固定枠部材
16 第1直進案内筒
17 第2直進案内筒
20 カム環
21 22 カム溝
30 治具
31 環状体
32 結合爪
L1 第1レンズ群
L2 第2レンズ群
L3 第3レンズ群
L4 第4レンズ群
X ズーム調整位置
Claims (7)
- 複数のレンズ群を有し、これら複数のレンズ群の位置及び間隔を変化させてズーミングするズームレンズ鏡筒において、
上記複数のレンズ群中の特定の2つのレンズ群をそれぞれ固定した2つのレンズ固定枠と、
この2つのレンズ固定枠をそれぞれ螺合させた、上記ズーミングに際し光軸方向に直進移動する2つの移動枠と、
ズーム調整時に上記2つのレンズ固定枠をそれぞれの移動枠に対して同時に回転させる回転方向一体化手段と、
を備えたことを特徴とするズームレンズ鏡筒のズーム調整機構。 - 請求項1記載のズーム調整機構において、上記複数のレンズ群は、物体側から順に位置する4つのレンズ群であり、上記特定の2つのレンズ群は、物体側から順に位置する第1レンズ群と第2レンズ群であるズームレンズ鏡筒のズーム調整機構。
- 請求項1または2記載のズーム調整機構において、上記回転方向一体化手段は、上記2つの移動枠をズーム領域の外側において接近させるカム手段と、この2つの移動枠が接近移動したとき上記2つのレンズ固定枠を回転方向に機械的に結合する結合手段とからなるズームレンズ鏡筒のズーム調整機構。
- 請求項1または2記載のズーム調整機構において、上記回転方向一体化手段は、上記2つのレンズ固定枠を回転方向に機械的に結合する治具からなるズームレンズ鏡筒のズーム調整機構。
- 請求項4記載のズーム調整機構において、上記2つのレンズ固定枠は、短焦点距離端において回転方向に機械的に結合されるズームレンズ鏡筒のズーム調整機構。
- 請求項1ないし5のいずれか1項記載のズーム調整機構において、上記2つのレンズ固定枠は対応する2つの移動枠に対して同一のリードで螺合しているズームレンズ鏡筒のズーム調整機構。
- 請求項1ないし6のいずれか1項記載のズーム調整機構において、上記特定の2つのレンズ群は、ピント感度が同符号であるズームレンズ鏡筒のズーム調整機構。
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004235738A JP4537800B2 (ja) | 2004-08-13 | 2004-08-13 | ズームレンズ鏡筒のズーム調整機構 |
US11/198,220 US7356251B2 (en) | 2004-08-13 | 2005-08-08 | Assembly-stage focus adjustment mechanism of a zoom lens |
DE102005038237A DE102005038237A1 (de) | 2004-08-13 | 2005-08-12 | Mechanismus zur montageseitigen Schärfeneinstellung eines Varioobjektivs |
GB0516649A GB2417100B (en) | 2004-08-13 | 2005-08-12 | Assembly-stage focus adjustment mechanism of a zoom lens |
KR1020050074281A KR20060050442A (ko) | 2004-08-13 | 2005-08-12 | 줌렌즈 경통의 줌 조정 기구 |
TW094127503A TW200617458A (en) | 2004-08-13 | 2005-08-12 | Assembly-stage focus adjustment mechanism of a zoom lens |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004235738A JP4537800B2 (ja) | 2004-08-13 | 2004-08-13 | ズームレンズ鏡筒のズーム調整機構 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2006053408A JP2006053408A (ja) | 2006-02-23 |
JP4537800B2 true JP4537800B2 (ja) | 2010-09-08 |
Family
ID=35098266
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2004235738A Expired - Fee Related JP4537800B2 (ja) | 2004-08-13 | 2004-08-13 | ズームレンズ鏡筒のズーム調整機構 |
Country Status (6)
Country | Link |
---|---|
US (1) | US7356251B2 (ja) |
JP (1) | JP4537800B2 (ja) |
KR (1) | KR20060050442A (ja) |
DE (1) | DE102005038237A1 (ja) |
GB (1) | GB2417100B (ja) |
TW (1) | TW200617458A (ja) |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4732044B2 (ja) * | 2005-07-19 | 2011-07-27 | キヤノン株式会社 | 鏡筒及び撮像装置 |
US8181878B2 (en) | 2006-01-25 | 2012-05-22 | Cognex Technology And Investment Corporation | Method and apparatus for providing a focus indication for optical imaging of visual codes |
US7549582B1 (en) * | 2006-05-30 | 2009-06-23 | Cognex Technology And Investment Corporation | Method and apparatus for adjusting focus in a symbology reader |
US8033670B2 (en) * | 2006-12-29 | 2011-10-11 | Cognex Corporation | Manually adjustable ruggedized focus mechanism |
JP5022183B2 (ja) * | 2007-11-02 | 2012-09-12 | ペンタックスリコーイメージング株式会社 | ズームレンズ |
US8302864B2 (en) | 2007-12-28 | 2012-11-06 | Cognex Corporation | Method and apparatus using aiming pattern for machine vision training |
US8646689B2 (en) | 2007-12-28 | 2014-02-11 | Cognex Corporation | Deformable light pattern for machine vision system |
JP5253849B2 (ja) | 2008-03-14 | 2013-07-31 | Hoya株式会社 | レンズ鏡筒 |
US8134116B2 (en) | 2009-01-12 | 2012-03-13 | Cognex Corporation | Modular focus system for image based code readers |
US11366284B2 (en) * | 2011-11-22 | 2022-06-21 | Cognex Corporation | Vision system camera with mount for multiple lens types and lens module for the same |
US8947590B2 (en) * | 2011-11-22 | 2015-02-03 | Cognex Corporation | Vision system camera with mount for multiple lens types |
US10498933B2 (en) | 2011-11-22 | 2019-12-03 | Cognex Corporation | Camera system with exchangeable illumination assembly |
US9746636B2 (en) | 2012-10-19 | 2017-08-29 | Cognex Corporation | Carrier frame and circuit board for an electronic device |
KR102183488B1 (ko) | 2019-05-29 | 2020-11-26 | (주)엠에스엠 | 백게이지 위치를 가변하는 밴딩머신 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2000275503A (ja) * | 1999-03-26 | 2000-10-06 | Asahi Optical Co Ltd | ズームレンズの制御方法 |
JP2000352649A (ja) * | 1999-06-09 | 2000-12-19 | Asahi Optical Co Ltd | ズームレンズ系及びズームレンズ系の調整方法 |
JP2002350707A (ja) * | 2001-03-22 | 2002-12-04 | Asahi Optical Co Ltd | ズームレンズ鏡筒のカム構造 |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5543531A (en) * | 1978-09-21 | 1980-03-27 | Fuji Photo Optical Co Ltd | Plastic lens |
JP3010564B2 (ja) * | 1991-05-02 | 2000-02-21 | 富士写真光機株式会社 | Tvカメラ用レンズ鏡胴 |
JP3255447B2 (ja) | 1992-04-17 | 2002-02-12 | 旭光学工業株式会社 | ズームレンズ鏡筒の調整装置 |
JPH06130269A (ja) * | 1992-10-21 | 1994-05-13 | Konica Corp | ズームレンズ鏡胴 |
JPH0949961A (ja) | 1995-08-10 | 1997-02-18 | Asahi Optical Co Ltd | 可変焦点距離レンズのレンズ位置調整装置 |
JP3660774B2 (ja) | 1997-02-12 | 2005-06-15 | ペンタックス株式会社 | Afコンパクトカメラの組立時ピント調節機構 |
JP4599676B2 (ja) * | 2000-07-13 | 2010-12-15 | 株式会社ニコン | レンズ鏡筒 |
JP2003195142A (ja) | 2001-12-26 | 2003-07-09 | Pentax Corp | レンズ駆動機構 |
US6888685B2 (en) * | 2003-02-06 | 2005-05-03 | Pentax Corporation | Retracting mechanism of a zoom lens barrel |
JP2006133544A (ja) * | 2004-11-08 | 2006-05-25 | Pentax Corp | ズームレンズ鏡筒 |
-
2004
- 2004-08-13 JP JP2004235738A patent/JP4537800B2/ja not_active Expired - Fee Related
-
2005
- 2005-08-08 US US11/198,220 patent/US7356251B2/en not_active Expired - Fee Related
- 2005-08-12 GB GB0516649A patent/GB2417100B/en not_active Expired - Fee Related
- 2005-08-12 TW TW094127503A patent/TW200617458A/zh unknown
- 2005-08-12 KR KR1020050074281A patent/KR20060050442A/ko not_active Application Discontinuation
- 2005-08-12 DE DE102005038237A patent/DE102005038237A1/de not_active Withdrawn
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2000275503A (ja) * | 1999-03-26 | 2000-10-06 | Asahi Optical Co Ltd | ズームレンズの制御方法 |
JP2000352649A (ja) * | 1999-06-09 | 2000-12-19 | Asahi Optical Co Ltd | ズームレンズ系及びズームレンズ系の調整方法 |
JP2002350707A (ja) * | 2001-03-22 | 2002-12-04 | Asahi Optical Co Ltd | ズームレンズ鏡筒のカム構造 |
Also Published As
Publication number | Publication date |
---|---|
KR20060050442A (ko) | 2006-05-19 |
GB2417100B (en) | 2007-09-19 |
TW200617458A (en) | 2006-06-01 |
DE102005038237A1 (de) | 2006-02-23 |
JP2006053408A (ja) | 2006-02-23 |
GB0516649D0 (en) | 2005-09-21 |
GB2417100A (en) | 2006-02-15 |
US20060034596A1 (en) | 2006-02-16 |
US7356251B2 (en) | 2008-04-08 |
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