JP4159499B2 - 原稿読取装置 - Google Patents
原稿読取装置 Download PDFInfo
- Publication number
- JP4159499B2 JP4159499B2 JP2004102996A JP2004102996A JP4159499B2 JP 4159499 B2 JP4159499 B2 JP 4159499B2 JP 2004102996 A JP2004102996 A JP 2004102996A JP 2004102996 A JP2004102996 A JP 2004102996A JP 4159499 B2 JP4159499 B2 JP 4159499B2
- Authority
- JP
- Japan
- Prior art keywords
- document
- frame
- mirror
- optical system
- module
- 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
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Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
- H04N1/024—Details of scanning heads ; Means for illuminating the original
- H04N1/028—Details of scanning heads ; Means for illuminating the original for picture information pick-up
- H04N1/03—Details of scanning heads ; Means for illuminating the original for picture information pick-up with photodetectors arranged in a substantially linear array
- H04N1/0301—Details of scanning heads ; Means for illuminating the original for picture information pick-up with photodetectors arranged in a substantially linear array using a bent optical path between the scanned line and the photodetector array, e.g. a folded optical path
- H04N1/0305—Details of scanning heads ; Means for illuminating the original for picture information pick-up with photodetectors arranged in a substantially linear array using a bent optical path between the scanned line and the photodetector array, e.g. a folded optical path with multiple folds of the optical path
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
- H04N1/024—Details of scanning heads ; Means for illuminating the original
- H04N1/028—Details of scanning heads ; Means for illuminating the original for picture information pick-up
- H04N1/03—Details of scanning heads ; Means for illuminating the original for picture information pick-up with photodetectors arranged in a substantially linear array
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
- H04N1/04—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa
- H04N1/10—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa using flat picture-bearing surfaces
- H04N1/1013—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa using flat picture-bearing surfaces with sub-scanning by translatory movement of at least a part of the main-scanning components
- H04N1/1017—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa using flat picture-bearing surfaces with sub-scanning by translatory movement of at least a part of the main-scanning components the main-scanning components remaining positionally invariant with respect to one another in the sub-scanning direction
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
- H04N1/04—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa
- H04N1/19—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa using multi-element arrays
- H04N1/191—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa using multi-element arrays the array comprising a one-dimensional array, or a combination of one-dimensional arrays, or a substantially one-dimensional array, e.g. an array of staggered elements
- H04N1/192—Simultaneously or substantially simultaneously scanning picture elements on one main scanning line
- H04N1/193—Simultaneously or substantially simultaneously scanning picture elements on one main scanning line using electrically scanned linear arrays, e.g. linear CCD arrays
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N2201/00—Indexing scheme relating to scanning, transmission or reproduction of documents or the like, and to details thereof
- H04N2201/024—Indexing scheme relating to scanning, transmission or reproduction of documents or the like, and to details thereof deleted
- H04N2201/02452—Arrangements for mounting or supporting elements within a scanning head
- H04N2201/02454—Element mounted or supported
- H04N2201/0246—Mirror, reflecting element or beam splitter
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N2201/00—Indexing scheme relating to scanning, transmission or reproduction of documents or the like, and to details thereof
- H04N2201/024—Indexing scheme relating to scanning, transmission or reproduction of documents or the like, and to details thereof deleted
- H04N2201/02452—Arrangements for mounting or supporting elements within a scanning head
- H04N2201/02479—Mounting or supporting means
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N2201/00—Indexing scheme relating to scanning, transmission or reproduction of documents or the like, and to details thereof
- H04N2201/024—Indexing scheme relating to scanning, transmission or reproduction of documents or the like, and to details thereof deleted
- H04N2201/02495—Constructional details not otherwise provided for, e.g. for ease of assembly, allowing access to the scanning elements, integrated reinforcing members
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Facsimile Scanning Arrangements (AREA)
- Optical Systems Of Projection Type Copiers (AREA)
Description
前記モジュールの重心近傍を前記副走査方向と平行に貫く高い剛性の板金製のフレームを有し、
前記縮小光学系の光路は、前記フレームのフレーム平坦部の原稿面に近い側で複数のミラーにより構成される第1光学系内で複数回折り返した後に、前記フレーム平坦部の開口部を貫いて、レンズ、CCDおよびミラーにより構成され前記フレーム平坦部の原稿面に遠い側に配置される第2光学系に導かれ
前記モジュールを機械的に走査する駆動源は、前記フレーム平坦部に取り付けてあり、
前記第1光学系および前記第2光学系は、前記フレーム平坦部の前記原稿面に近い側および前記原稿面に遠い側にそれぞれ固定されている
原稿読取装置。
11 ドラム
12、13、14 プーリ
15 摺動ガイド
2 第1の光学系
21、22、23 ミラー
24、25 側板
3 第2光学系
31 レンズ
32 CCD
4 フレーム(板金製フレーム)
40 フレーム平坦部
41 光路のための切欠部(開口部)
43 摺動部材の取付部
4x、4y 折曲部
5 ランプ
6 駆動源(駆動モータ)
8 レール(フロントレール)
82、83 摺動部材
9 導電性部材
401〜403 板ばね
Claims (7)
- 原稿を照射する光源と、レンズおよびミラーを使用する縮小光学系と、ラインセンサとを一体化したモジュールとし、前記ライセンサによりライン状に原稿を走査する主走査を行うと共に該主走査方向と直交方向に前記モジュールを機械的に走査する副走査を行い、原稿面の情報を読み取る原稿読取装置において、
前記モジュールの重心近傍を前記副走査方向と平行に貫く高い剛性の板金製のフレームを有し、
前記縮小光学系の光路は、前記フレームのフレーム平坦部の原稿面に近い側で複数のミラーにより構成される第1光学系内で複数回折り返した後に、前記フレーム平坦部の開口部を貫いて、レンズ、CCDおよびミラーにより構成され前記フレーム平坦部の原稿面に遠い側に配置される第2光学系に導かれ
前記モジュールを機械的に走査する駆動源は、前記フレーム平坦部に取り付けてあり、
前記第1光学系および前記第2光学系は、前記フレーム平坦部の前記原稿面に近い側および前記原稿面に遠い側にそれぞれ固定されている
ことを特徴とする原稿読取装置。 - 前記フレーム平坦部に直接固定され、前記モジュールの前記副走査方向を案内するレールに対する摺動部材を有することを特徴とする請求項1に記載の原稿読取装置。
- 前記第1光学系は、光路が複数回往復する略平行な1対のミラーおよび原稿の光を前記1対のミラーに入射する1枚のミラーにより構成され、前記1対のミラーは、原稿面に対して略垂直であり、前記1枚のミラーは、前記1対のミラーから見て原稿面の反対側に位置し且つ原稿面から前記1枚のミラーへ向かう光路は、前記1対のミラー間を往復する光路を横切る位置に配置され、前記1対のミラーおよび前記1枚のミラーの両端は、それぞれ1枚の側板により位置決めされ、該側板のエッジが前記フレーム平坦部に位置決めされることを特徴とする請求項1又は2に記載の原稿読取装置。
- 前記モジュールは、前記フレーム平坦部の同一面上に固定され、ワイヤを巻付け駆動するドラム軸とプーリの軸を有することを特徴とする請求項1乃至3の何れかに記載の原稿読取装置。
- 前記フレームの端部には、導電性部材が取り付けられ、前記レールを介して電気的に接地されることを特徴とする請求項2乃至4の何れかに記載の原稿読取装置。
- 前記摺動部材は、前記導電性部材を兼ねることを特徴とする請求項2又は5に記載の原稿読取装置。
- 前記フレームには板ばねが取り付けられ、該板ばねは、前記第1光学系内の前記ミラー端部に接触し、該ミラーおよび前記板ばねの接触部分の滑りにより振動エネルギを熱エネルギに変換して前記ミラーの振動を減衰させることを特徴とする請求項1乃至6の何れかに記載の原稿読取装置。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004102996A JP4159499B2 (ja) | 2004-03-31 | 2004-03-31 | 原稿読取装置 |
CNB2005100697416A CN100512366C (zh) | 2004-03-31 | 2005-03-30 | 原稿读取器和光学读取方法 |
US11/093,489 US8300278B2 (en) | 2004-03-31 | 2005-03-30 | Original reader, optical module, and optical reading method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004102996A JP4159499B2 (ja) | 2004-03-31 | 2004-03-31 | 原稿読取装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2005292190A JP2005292190A (ja) | 2005-10-20 |
JP4159499B2 true JP4159499B2 (ja) | 2008-10-01 |
Family
ID=35050303
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2004102996A Expired - Fee Related JP4159499B2 (ja) | 2004-03-31 | 2004-03-31 | 原稿読取装置 |
Country Status (3)
Country | Link |
---|---|
US (1) | US8300278B2 (ja) |
JP (1) | JP4159499B2 (ja) |
CN (1) | CN100512366C (ja) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5267855B2 (ja) * | 2008-08-18 | 2013-08-21 | 村田機械株式会社 | 原稿読取装置 |
JP4934872B2 (ja) * | 2009-11-24 | 2012-05-23 | Necアクセステクニカ株式会社 | 画像読取装置 |
JP5675131B2 (ja) * | 2010-03-05 | 2015-02-25 | ニスカ株式会社 | 画像読取装置 |
JP5706093B2 (ja) * | 2010-03-08 | 2015-04-22 | ニスカ株式会社 | 画像読取装置 |
US8547608B2 (en) | 2011-02-16 | 2013-10-01 | Eastman Kodak Company | Scanning apparatus with circuit board overlapping platen |
US8537436B2 (en) * | 2011-02-16 | 2013-09-17 | Eastman Kodak Company | Obliquely mounted motor on scan bar assembly |
JP5883043B2 (ja) * | 2013-02-28 | 2016-03-09 | 株式会社沖データ | 読取装置および複合装置 |
WO2017188942A1 (en) * | 2016-04-27 | 2017-11-02 | Hewlett-Packard Development Company, L.P. | Scan assembly frame |
US11108930B2 (en) * | 2019-03-13 | 2021-08-31 | Canon Kabushiki Kaisha | Image reading unit and image reading apparatus |
JP7427434B2 (ja) * | 2019-11-29 | 2024-02-05 | キヤノン株式会社 | 画像読取ユニット、画像読取装置及び画像形成装置 |
JP2023145283A (ja) * | 2022-03-28 | 2023-10-11 | 富士フイルムビジネスイノベーション株式会社 | 画像読み取り装置および画像形成システム |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5027424A (en) * | 1986-08-29 | 1991-06-25 | Asahi Kogaku Kogyo K.K. | Image reader |
JPH06301121A (ja) | 1993-04-12 | 1994-10-28 | Fuji Xerox Co Ltd | 画像読み取り装置 |
JPH09163098A (ja) | 1995-12-12 | 1997-06-20 | Lab Shinei:Kk | 光学ユニット |
JP2000050031A (ja) | 1998-07-29 | 2000-02-18 | Canon Inc | 画像読取装置 |
JP2000253209A (ja) | 1999-03-02 | 2000-09-14 | Matsushita Electric Ind Co Ltd | 画像読取装置 |
JP2001077983A (ja) | 1999-09-06 | 2001-03-23 | Canon Inc | 画像読取装置 |
US6831759B1 (en) * | 2000-03-16 | 2004-12-14 | Hewlett-Packard Development Company, L.P. | Light source shutter for scanning transparent media through overhead reflective light path |
JP2003295342A (ja) | 2002-03-29 | 2003-10-15 | Fuji Photo Optical Co Ltd | 画像読取装置の反射鏡取付構造 |
JP3653059B2 (ja) | 2002-04-26 | 2005-05-25 | Necアクセステクニカ株式会社 | 原稿読取装置 |
JP2003029353A (ja) | 2002-05-17 | 2003-01-29 | Fuji Xerox Co Ltd | 原稿走査装置 |
US7295352B2 (en) * | 2002-05-23 | 2007-11-13 | Hewlett-Packard Development Company, L.P. | Scanning apparatus |
JP3655893B2 (ja) * | 2002-06-13 | 2005-06-02 | Necアクセステクニカ株式会社 | 原稿読取装置 |
US7378644B2 (en) * | 2003-09-18 | 2008-05-27 | Nisca Corporation | Image reading apparatus |
-
2004
- 2004-03-31 JP JP2004102996A patent/JP4159499B2/ja not_active Expired - Fee Related
-
2005
- 2005-03-30 US US11/093,489 patent/US8300278B2/en active Active
- 2005-03-30 CN CNB2005100697416A patent/CN100512366C/zh not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
US8300278B2 (en) | 2012-10-30 |
CN100512366C (zh) | 2009-07-08 |
JP2005292190A (ja) | 2005-10-20 |
US20050219651A1 (en) | 2005-10-06 |
CN1678014A (zh) | 2005-10-05 |
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