JP2000354132A5 - - Google Patents
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- Publication number
- JP2000354132A5 JP2000354132A5 JP1999163219A JP16321999A JP2000354132A5 JP 2000354132 A5 JP2000354132 A5 JP 2000354132A5 JP 1999163219 A JP1999163219 A JP 1999163219A JP 16321999 A JP16321999 A JP 16321999A JP 2000354132 A5 JP2000354132 A5 JP 2000354132A5
- Authority
- JP
- Japan
- Prior art keywords
- electroluminescence element
- document
- light
- emits
- color
- 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.)
- Granted
Links
- 238000005401 electroluminescence Methods 0.000 description 9
- 239000003086 colorant Substances 0.000 description 6
- 239000000758 substrate Substances 0.000 description 4
Description
【特許請求の範囲】
【請求項１】 原稿を照明するための異なる色の光を発する複数のエレクトロルミネッセンス素子が所定間隔をおいて透光基板上に配置され、前記透光基板が読取原稿と平行かつ近接配置される光源と、前記原稿からの反射光を光電変換し、この光電変換された電気信号によって原稿の画像情報を読取るイメージセンサと、を具備し、前記光源は、前記エレクトロルミネッセンス素子を制御することで光の色を順次切り替えながら前記透光性基板を介して前記原稿に光を照射し、一方、前記イメージセンサは、前記原稿から前記透光基板の前記エレクトロルミネッセンス素子間を透過して入射する反射光を前記原稿に照射される光の色毎に順次切り替えて読取ることを特徴とする画像読取装置。
【請求項２】 前記光源は、赤、緑、青の三原色を発光するように、三原色を発光するエレクトロルミネッセンス素子をそれぞれ有し、発光効率の低い色を発光する前記エレクトロルミネッセンス素子が他の色を発光するエレクトロルミネッセンス素子より原稿に近く配置されていることを特徴とする請求項１に記載の画像読取装置。
【請求項３】 前記光源は、赤、緑、青の三原色を発光するように、三原色を発光するエレクトロルミネッセンス素子をそれぞれ有し、発光効率の低い色を発光するエレクトロルミネッセンス素子の発光面積が、他の色を発光するエレクトロルミネッセンス素子の発光面積より大きくなされていることを特徴とする請求項１または請求項２に記載の画像読取装置。
【請求項４】 前記エレクトロルミネッセンス素子の端部の幅を中央部の幅よりも広くしたことを特徴とする請求項１から請求項３のいずれかに記載の画像読取装置。
[Claims]
1. A plurality of electroluminescent elements that emit light of different colors for illuminating a document.Are arranged on the translucent substrate at predetermined intervals, and the translucent substrate is arranged parallel to and close to the scanning document.It includes a light source and an image sensor that photoelectrically converts the reflected light from the document and reads the image information of the document by the photoelectrically converted electric signal. The light source controls the electroluminescence element to generate light. Colors in sequenceIrradiate the document with light through the translucent substrate while switching.On the other hand, the image sensor is the original document.Is transmitted through between the electroluminescence elements of the translucent substrate and is incident.An image reading device characterized in that the reflected light is sequentially switched and read for each color of the light applied to the document.
2. The light source has an electroluminescence element that emits three primary colors so as to emit three primary colors of red, green, and blue.The electroluminescence element that emits a color having low luminous efficiency is arranged closer to the original than the electroluminescence element that emits another color.Claim 1The image reader according to.
3. The light source has an electroluminescence element that emits three primary colors so as to emit three primary colors of red, green, and blue.Claim 1 is characterized in that the light emitting area of an electroluminescence element that emits a color having low luminous efficiency is larger than the light emitting area of an electroluminescence element that emits another color.Or claim 2The image reader according to.
4. The image reading apparatus according to any one of claims 1 to 3, wherein the width of the end portion of the electroluminescence element is made wider than the width of the central portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16321999A JP4091712B2 (en) | 1999-06-10 | 1999-06-10 | Image reading device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16321999A JP4091712B2 (en) | 1999-06-10 | 1999-06-10 | Image reading device |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2000354132A JP2000354132A (en) | 2000-12-19 |
| JP2000354132A5 true JP2000354132A5 (en) | 2006-06-01 |
| JP4091712B2 JP4091712B2 (en) | 2008-05-28 |
Family
ID=15769583
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16321999A Expired - Lifetime JP4091712B2 (en) | 1999-06-10 | 1999-06-10 | Image reading device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP4091712B2 (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002325162A (en) * | 2001-02-22 | 2002-11-08 | Matsushita Electric Ind Co Ltd | Light source for image reading apparatus and image reading apparatus |
| CN100423532C (en) * | 2001-08-09 | 2008-10-01 | 松下电器产业株式会社 | Light for image pickup device and driving device therefor |
| JP4581692B2 (en) * | 2005-01-11 | 2010-11-17 | セイコーエプソン株式会社 | ORGANIC LIGHT EMITTING DIODE DEVICE, IMAGE FORMING DEVICE, AND IMAGE READING DEVICE |
| JP2006107755A (en) * | 2004-09-30 | 2006-04-20 | Seiko Epson Corp | Electrooptical device, image forming device and image reading device |
| JP4742624B2 (en) * | 2005-03-04 | 2011-08-10 | セイコーエプソン株式会社 | ELECTRO-OPTICAL DEVICE, MANUFACTURING METHOD THEREOF, IMAGE PRINTING DEVICE, AND IMAGE READING DEVICE |
| JP4902573B2 (en) * | 2008-02-25 | 2012-03-21 | 株式会社リコー | Image reading device |
| JP4766066B2 (en) | 2008-03-14 | 2011-09-07 | コニカミノルタビジネステクノロジーズ株式会社 | Image reading apparatus and light source |
| JP6340793B2 (en) | 2013-12-27 | 2018-06-13 | セイコーエプソン株式会社 | Optical device |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56161773A (en) * | 1980-05-16 | 1981-12-12 | Hitachi Ltd | Arraying device of photosensor |
| JPS61131960A (en) * | 1984-11-30 | 1986-06-19 | Sharp Corp | Color picture reader |
| JPS6482758A (en) * | 1987-09-24 | 1989-03-28 | Minolta Camera Kk | Color image reader |
| JPH03107861U (en) * | 1990-02-21 | 1991-11-06 | ||
| JPH05191563A (en) * | 1991-02-27 | 1993-07-30 | Ricoh Co Ltd | Picture reader |
| JPH05328025A (en) * | 1992-05-27 | 1993-12-10 | Canon Inc | Original reader |
| JPH0879446A (en) * | 1994-09-08 | 1996-03-22 | Seiko Epson Corp | Image input device |
-
1999
- 1999-06-10 JP JP16321999A patent/JP4091712B2/en not_active Expired - Lifetime
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