JPS6249765A - Color reader - Google Patents
Color readerInfo
- Publication number
- JPS6249765A JPS6249765A JP60190828A JP19082885A JPS6249765A JP S6249765 A JPS6249765 A JP S6249765A JP 60190828 A JP60190828 A JP 60190828A JP 19082885 A JP19082885 A JP 19082885A JP S6249765 A JPS6249765 A JP S6249765A
- Authority
- JP
- Japan
- Prior art keywords
- color
- scanning direction
- main scanning
- line
- light receiving
- 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.)
- Pending
Links
- 238000006243 chemical reaction Methods 0.000 claims description 16
- 239000003086 colorant Substances 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 6
- 238000000926 separation method Methods 0.000 description 3
- 230000035945 sensitivity Effects 0.000 description 2
- 230000003595 spectral effect Effects 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Landscapes
- Facsimile Heads (AREA)
- Facsimile Scanning Arrangements (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は、受光素子とＲ，Ｇ、Ｂカラーフィルタを備え
た光電変換手段によってカラー原稿の色分離を行うカラ
ー読取装置に関する。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a color reading device that performs color separation of a color original using a photoelectric conversion means that includes a light receiving element and R, G, and B color filters.
従来の技術
従来のこの種のカラー読取装置は、第３図に示すように
、受光素子を、主走査方向にかつインライン状にカラー
原稿の読取り幅にわたり１行に並べ、この受光素子上に
カラーフィルタをＲ（赤）。2. Description of the Related Art As shown in FIG. 3, in a conventional color reading device of this type, light receiving elements are arranged in one line across the scanning width of a color document in the main scanning direction, and color images are read on the light receiving elements. Set the filter to R (red).
Ｇ（緑）、Ｂ（青）の順に配設した光電変換手段を備え
、この手段を介してＲ，Ｇ、Ｂの配列順に順次出力信号
を得る所謂点順次によるカラー原稿の色分離を行うよう
になっている。It is equipped with photoelectric conversion means arranged in the order of G (green) and B (blue), and through this means, output signals of R, G, and B are sequentially obtained in the order of arrangement. It has become.
発明が解決しようとする問題点
しかしながら、従来のこの種の装置における光電変換手
段によれば、主走査方向における受光部サイズはＲ，Ｇ
、Ｂに３分割され、殆になる。つまり、仮に白黒用受光
素子サイズが６２．５μｍ。Problems to be Solved by the Invention However, according to the photoelectric conversion means in the conventional device of this type, the size of the light receiving part in the main scanning direction is R, G.
, B is divided into three parts, and becomes almost all. In other words, if the black and white light receiving element size is 62.5 μm.
走査線密度が１６本／Ｈのカラー用受光素子を例にとる
と、受光部サイズは２０．８３μｍとなり、かなシ微小
な加工が要求されることとなる。また、受光素子の数が
主走査方向に３倍（例えば、原稿サイズ２１６１１１
、１ （３本７ＭＩ〕場合、１０３６８画素）となり、
１ラインの走査速度は発信となり、読取り速度が遅くな
るという問題がある。更には、各受光素子上に配設する
Ｒ、Ｇ、Ｂカラーフィルタの加工が困難（２Ｑ８３μｍ
Ｘ１０，３６８個）であり、かつ、１対１に受光素子と
Ｒ，Ｇ、Ｂのカラーフィルタ（２０，８３μｍ×６２．
６μｍ）とをインライン状につなぎ合わせることが難し
く、この種の光電変換手段または装置の製作が困難であ
るという問題があった。Taking a color light-receiving element with a scanning line density of 16 lines/H as an example, the light-receiving portion size is 20.83 μm, which requires fine processing. Also, the number of light-receiving elements is tripled in the main scanning direction (for example, the original size is 216,111
, 1 (10368 pixels in case of 3 lines 7MI),
There is a problem in that the scanning speed of one line is transmitted, and the reading speed becomes slow. Furthermore, it is difficult to process the R, G, and B color filters arranged on each light receiving element (2Q83μm).
x 10,368 pieces), and the light receiving elements and R, G, B color filters (20,83 μm x 62.
There was a problem in that it was difficult to connect the 6 μm) in-line, making it difficult to manufacture this type of photoelectric conversion means or device.
また、主走査方向に分離してＲ，Ｇ、Ｈの各フィルタを
配置しているため、色ずれ（エツジ誤差）を生じやすい
という問題があった。Furthermore, since the R, G, and H filters are arranged separately in the main scanning direction, there is a problem in that color shift (edge error) is likely to occur.
本発明は、上述のような問題点に鑑みなされたもので、
主走査方向の受光素子の数を従来のように増やすことな
く、ま゛た主走査方向の受光部サイズを従来の如く微小
にすることなく構成し、色ずれの少ないＲ，Ｇ、Ｂのカ
ラー読取シを行い得るようにしたカラー読取装置を提供
することを目的とする。The present invention was made in view of the above-mentioned problems.
It is configured without increasing the number of light-receiving elements in the main scanning direction as in the past, and without making the size of the light-receiving part in the main scanning direction minute as in the past, and it is possible to use R, G, and B colors with less color shift. An object of the present invention is to provide a color reading device capable of performing reading.
問題点を解決するだめの手段
前記の目的を達成するため、本発明のカラー読取装置は
、受光素子を副走査方向にかつインライン状に３行配設
し、斜め３つの受光素子に同一色フィルタを配列し、こ
の同一色フィルタ配列を各色毎に順次主走査方向に行な
った光電変換手段を備えたことを特徴とする。Means for Solving the Problems In order to achieve the above-mentioned object, the color reading device of the present invention has three rows of light-receiving elements arranged in-line in the sub-scanning direction, and the same color filters are arranged on the three diagonal light-receiving elements. The present invention is characterized in that it includes a photoelectric conversion means in which filters of the same color are arranged in sequence in the main scanning direction for each color.
作用 原稿を読み取るとき、原稿の書画面はＲ，Ｇ。action When reading a manuscript, the writing surface of the manuscript is R and G.
Ｂの各フィルタを介して読み取られるとともに、主走査
方向の書画面の端部も１色のフィルタに限定されること
なく、Ｒ，Ｇ、Ｂ３色のフィルタで読み取られる。At the same time, the edges of the writing surface in the main scanning direction are not limited to one color filter, but are read through three color filters of R, G, and B.
受光素子を、副走査方向にかつインライン状に３行配設
したので、従来のように主走査方向の受光素子数が増え
ることがない。従って１ラインの読取り速度も低下する
ことがない。Since the light-receiving elements are arranged in three rows in the sub-scanning direction, the number of light-receiving elements in the main-scanning direction does not increase as in the prior art. Therefore, the reading speed of one line does not decrease.
実施例
第１図（＆）は本発明の一実施例であるカラー読取装置
における光電変換手段の概略構成図、第１図（′ｂ）は
同光電変換手段の構成を説明するだめの図である。Embodiment FIG. 1 (&) is a schematic configuration diagram of a photoelectric conversion means in a color reading device which is an embodiment of the present invention, and FIG. 1 ('b) is a diagram for explaining the configuration of the photoelectric conversion means. be.
図において、１ｏは光電変換手段であり、光電変換手段
１０は、副走査方向１行目、２行目、３行目にそれぞれ
受光素子１〜３を備えている。受光素子１〜３は主走査
方向に、かつ、インライン状に配設される。In the figure, 1o is a photoelectric conversion means, and the photoelectric conversion means 10 includes light receiving elements 1 to 3 in the first, second, and third rows in the sub-scanning direction, respectively. The light receiving elements 1 to 3 are arranged inline in the main scanning direction.
なお、ここに前記受光素子１〜３が直線状に、かつ読取
解像度のピッチ（例えば、１６本／顧の場合、６２．５
ｆｆ肩）内に収まるように配設することをインライン状
という。Note that the light receiving elements 1 to 3 are arranged in a straight line and at a pitch of the reading resolution (for example, 62.5 in the case of 16 pieces/piece).
ff shoulder) is called inline arrangement.
１行目の受光素子１上にはカラーフィルタ４が主走査方
向にＲ，Ｂ、Ｇ、Ｒ，Ｂ、（ｒ・・・・・・の順で配設
されている。Color filters 4 are arranged on the light receiving element 1 in the first row in the order of R, B, G, R, B, (r...) in the main scanning direction.
２行目の受光素子２上にはカラーフィルタ６が主走査方
向にＢ、Ｇ、Ｒ，Ｂ、Ｇ、Ｒ・・・・・・の順で配設さ
れている。Color filters 6 are arranged on the second row of light receiving elements 2 in the order of B, G, R, B, G, R, . . . in the main scanning direction.
３行目の受光素子３上にはカラーフィルタ６が主走査方
向にＧ、Ｒ，Ｂ、Ｇ、Ｒ，Ｂ・・・・・・の順で配設さ
れている。Color filters 6 are arranged on the third row of light receiving elements 3 in the order of G, R, B, G, R, B, . . . in the main scanning direction.
このようにして、斜め３つの受光素子に同一色フィルタ
を配列するとともに、各色毎に順次主査方向にこの配列
を行なっている。In this way, filters of the same color are arranged on three diagonal light receiving elements, and this arrangement is performed in the main scanning direction for each color.
第１図（＋！Ｌ）（ｂ）に示す実施例を、より具体的に
説明すると、今仮に原稿サイズが２１’ｅｌｆｆ、走査
線密度が１６本／１ｔｔｙｔの場合、１行目の受光素子
１の受光部サイズは、主走査方向が６２．６μｍ、副走
査方向が２０．８３μｍとなり、受光素子数は３４６６
画素となる。２行目及び３行目の各受光素子２゜３のそ
れぞれの受光部サイズと受光素子数も前記１行目の数値
と同一となる。To explain the embodiment shown in FIG. 1 (+!L) (b) more specifically, if the document size is 21'elff and the scanning line density is 16 lines/1ttyt, The size of the light receiving part of 1 is 62.6 μm in the main scanning direction and 20.83 μm in the sub scanning direction, and the number of light receiving elements is 3466.
Becomes a pixel. The size of the light-receiving portion and the number of light-receiving elements of each of the light-receiving elements 2.3 in the second and third rows are also the same as the numerical values in the first row.
また、カラーフィルタ４〜６の各色毎のサイズは主走査
方向に６２．５μｍ、副走査方向に２ｏ、８３μｍとな
る。Further, the size of each color of the color filters 4 to 6 is 62.5 μm in the main scanning direction and 20.83 μm in the sub-scanning direction.
このように構成しているので、例えば６２．５μｍの線
幅が来たとき、インライン状でＲ，（１，、Ｈのカラー
分離が可能となる。つまり、Ｒ信号、Ｇ信号、Ｂ信号が
重複しないように１行目、２行目。With this configuration, for example, when the line width is 62.5 μm, it is possible to perform color separation of R, (1, and H) in-line. In other words, the R signal, G signal, and B signal are 1st and 2nd lines to avoid duplication.
３行目のいずれかで独立に、かつ、主走査方向に線順次
に読取られる。Any of the third rows is read independently and line-sequentially in the main scanning direction.
第２図は、前記の構成から成る光電変換手段○を用いた
本発明のカラー読取装置の分光感度特性を示す図で、こ
の第２図から明らかなように、本発明によれば、Ｒ，Ｇ
、Ｈのバランスのとれた色分離ができる。FIG. 2 is a diagram showing the spectral sensitivity characteristics of the color reading device of the present invention using the photoelectric conversion means ○ having the above-mentioned configuration.As is clear from FIG. 2, according to the present invention, R, G
, H can be separated in a well-balanced manner.
なお、本実施例の場合、各行においてＲ，Ｇ。In addition, in the case of this embodiment, R, G in each row.
Ｂのフィルタが交互に配設されているので、主走査方向
のみならず副走査方向の色ずれの発生も抑えられる。Since the B filters are arranged alternately, the occurrence of color shift not only in the main scanning direction but also in the sub-scanning direction can be suppressed.
発明の詳細
な説明したように、本発明によれば、受光素子を副走査
方向に、かつインライン状に３行配設すると共に、斜め
３つの受光素子に同一色フィルタを配列し、この配列を
各フィルタ毎に順次主査方向に備えだ光電変換手段を採
用しだので、従来の如く主走査方向の受光素子を増加さ
せずにＲ２Ｏ，Ｂのカラー分離ができる。従って読取り
速度も従来のように低下することがない。また、主走査
方向の読取り時、Ｒ，Ｇ、Ｂ３色のフィルタで読み取ら
れるので、色ずれの発生を少なくすることができる。As described in detail, according to the present invention, the light receiving elements are arranged in three rows in the sub-scanning direction, and the same color filters are arranged diagonally on the three light receiving elements. Since photoelectric conversion means are sequentially provided in the main scanning direction for each filter, color separation of R2O and B can be performed without increasing the number of light receiving elements in the main scanning direction as in the prior art. Therefore, the reading speed does not decrease as in the conventional case. Further, when reading in the main scanning direction, since the image is read using three color filters of R, G, and B, the occurrence of color shift can be reduced.
第１図（＆）は本発明の一実施例によるカラー読取装置
の光電変換手段の概略構成図、第１図（ｂ）は第１図（
２Ｌ）に示す光電変換手段の分解斜視図、第２図は本発
明に係るカラー読取装置におけるＲ、に。
Ｂカラーフィルタと受光素子との分光感度特性を示す特
性曲線図、第３図は従来の光電変換手段の概略構成図で
ある。
１・・・・・・１行目の受光素子、２・・・・・・２行
目の受光素子、３・・・・・・３行目の受光素子、４・
・・・・・１行目のカラーフィルり、６・・・・・・２
行目のカラーフィルり、６・・・・・・３行目のカラー
フィルタ、１ｏ・・・−光電変換手段。
代理人の氏名 弁理士 中 尾 敏 男 ほか１名味
Ｃ３；奴朴−ゼFIG. 1(&) is a schematic configuration diagram of a photoelectric conversion means of a color reading device according to an embodiment of the present invention, and FIG.
2L) is an exploded perspective view of the photoelectric conversion means shown in FIG. 2R in the color reading device according to the present invention. A characteristic curve diagram showing the spectral sensitivity characteristics of the B color filter and the light receiving element, and FIG. 3 is a schematic configuration diagram of a conventional photoelectric conversion means. 1... Light receiving element in the 1st row, 2... Light receiving element in the 2nd row, 3... Light receiving element in the 3rd row, 4.
...Color fill in the 1st row, 6...2
Color filter in row 6, color filter in third row, 1o...-photoelectric conversion means. Name of agent: Patent attorney Toshio Nakao and one other person
C3; Nuke Pak-ze
Claims (1)
の色分離を行うカラー読取装置であって、前記受光素子
を副走査方向にかつインライン状に３行配設すると共に
、斜め３つの受光素子に同一色フィルタを配列し、この
同一色フィルタ配列を各色毎に順次主走査方向に行なっ
た光電変換手段を備えたことを特徴とするカラー読取装
置。A color reading device that separates the colors of a color original using light receiving elements and R, G, and B color filters, in which the light receiving elements are arranged in three rows in the sub-scanning direction in an in-line manner, and the light receiving elements are arranged diagonally in three rows. 1. A color reading device comprising a photoelectric conversion means in which filters of the same color are arranged and the filters of the same color are arranged sequentially in the main scanning direction for each color.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60190828A JPS6249765A (en) | 1985-08-29 | 1985-08-29 | Color reader |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60190828A JPS6249765A (en) | 1985-08-29 | 1985-08-29 | Color reader |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6249765A true JPS6249765A (en) | 1987-03-04 |
Family
ID=16264437
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60190828A Pending JPS6249765A (en) | 1985-08-29 | 1985-08-29 | Color reader |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6249765A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7156225B2 (en) | 2002-05-29 | 2007-01-02 | American Air Liquide, Inc. | Reduced moisture compositions comprising an acid gas and a matrix gas, articles of manufacture comprising said compositions, and processes for manufacturing same |
| US10129415B2 (en) | 2016-06-01 | 2018-11-13 | Canon Kabushiki Kaisha | Image reading apparatus, image forming apparatus, image reading method, and storage medium |
| US10225496B2 (en) | 2016-02-16 | 2019-03-05 | Canon Kabushiki Kaisha | Photoelectric conversion device having a holding circuit with a plurality of holding units provided for each of a plurality of columns of pixels and method of driving photoelectric conversion device |
| US10230854B2 (en) | 2016-06-01 | 2019-03-12 | Canon Kabushiki Kaisha | Image reading apparatus, image forming apparatus, and image forming system with interpolation of correction data |
| US10356252B2 (en) | 2016-06-01 | 2019-07-16 | Canon Kabushiki Kaisha | Image reading apparatus, image forming apparatus, image reading method, and non-transitory storage medium that generate abnormal pixel information based on received information |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59229861A (en) * | 1983-05-24 | 1984-12-24 | Fuji Xerox Co Ltd | Color document reading device |
-
1985
- 1985-08-29 JP JP60190828A patent/JPS6249765A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59229861A (en) * | 1983-05-24 | 1984-12-24 | Fuji Xerox Co Ltd | Color document reading device |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7156225B2 (en) | 2002-05-29 | 2007-01-02 | American Air Liquide, Inc. | Reduced moisture compositions comprising an acid gas and a matrix gas, articles of manufacture comprising said compositions, and processes for manufacturing same |
| US7229667B2 (en) | 2002-05-29 | 2007-06-12 | American Air Liquide, Inc. | Reduced moisture compositions comprising an acid gas and a matrix gas, articles of manufacture comprising said compositions, and processes for manufacturing same |
| US10225496B2 (en) | 2016-02-16 | 2019-03-05 | Canon Kabushiki Kaisha | Photoelectric conversion device having a holding circuit with a plurality of holding units provided for each of a plurality of columns of pixels and method of driving photoelectric conversion device |
| US10129415B2 (en) | 2016-06-01 | 2018-11-13 | Canon Kabushiki Kaisha | Image reading apparatus, image forming apparatus, image reading method, and storage medium |
| US10230854B2 (en) | 2016-06-01 | 2019-03-12 | Canon Kabushiki Kaisha | Image reading apparatus, image forming apparatus, and image forming system with interpolation of correction data |
| US10356252B2 (en) | 2016-06-01 | 2019-07-16 | Canon Kabushiki Kaisha | Image reading apparatus, image forming apparatus, image reading method, and non-transitory storage medium that generate abnormal pixel information based on received information |
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