JPH0423238Y2 - - Google Patents
Info
- Publication number
- JPH0423238Y2 JPH0423238Y2 JP11279283U JP11279283U JPH0423238Y2 JP H0423238 Y2 JPH0423238 Y2 JP H0423238Y2 JP 11279283 U JP11279283 U JP 11279283U JP 11279283 U JP11279283 U JP 11279283U JP H0423238 Y2 JPH0423238 Y2 JP H0423238Y2
- Authority
- JP
- Japan
- Prior art keywords
- document
- lines
- illumination device
- color scanner
- pasting
- 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
Links
- 238000005286 illumination Methods 0.000 claims description 21
- 230000003287 optical effect Effects 0.000 claims description 4
- 239000002390 adhesive tape Substances 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 238000004040 coloring Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
Landscapes
- Facsimile Scanning Arrangements (AREA)
Description
【考案の詳細な説明】
この考案はカラースキヤナー、特にその原稿照
明装置の改良に関する。DETAILED DESCRIPTION OF THE INVENTION This invention relates to a color scanner, particularly to an improvement of its document illumination device.
カラースキヤナーはカラー印刷のための各色分
解版をつくるために用いられるものであつて、走
査用光源からの光を原稿に照射させる光学系と原
稿全体を照射するための光源を具備した筒状原稿
照明装置の周りに同軸的に原稿貼着用シリンダー
を設け、この原稿貼着用シリンダーを原稿照明装
置の軸芯を回転軸として回転させるとともにこの
原稿照明装置をその軸方向に沿つて移動させなが
らカラースキヤニングをして、網ポジチブや網ネ
ガチブ等の色分解パターンの出力をおこなうよう
になつている。 A color scanner is used to create color separation plates for color printing, and is a cylindrical scanner equipped with an optical system that irradiates the original with light from a scanning light source and a light source that irradiates the entire original. A document pasting cylinder is provided coaxially around the document illuminating device, and the document pasting cylinder is rotated about the axis of the document illuminating device as a rotation axis, and the document illuminating device is moved along its axis while coloring. Scanning is now performed to output color separation patterns such as positive halftone and negative halftone dots.
ところで、このようなカラースキヤナーにおい
て、原稿を原稿貼着用シリンダー表面に貼着する
場合、その貼着位置決めを従来は作業員の勘に頼
つておこなつていたため、原稿中の格子パターン
等の規則的パターンと網ポジになつたときの網点
のスクリーン角度との間に生ずるモアレ、家具等
に光が当つた際に生ずる細い線状の反射光パター
ンの角度とスクリーン角度がある角度関係になつ
た際に細い反射光パターンが断線状に印刷再現さ
れてしまういわゆる原稿の線切れ等による品質の
低下を招き、又、損版を生ずるなどの問題があつ
た。このようなモアレ、線切れは特に、建物、家
具、ストライブ柄等の直線的な絵柄の場合に顕著
であつた。さらに、このようなモアレ、線切れを
防止するための原稿の上記シリンダーへの貼り直
しの繰り返しなどによる作業時間の浪費も多く、
その改善が望まれていた。 By the way, in such color scanners, when pasting a document on the surface of the document pasting cylinder, the pasting position has traditionally been determined by the operator's intuition; Moiré that occurs between the target pattern and the screen angle of the halftone dots when the screen becomes a positive halftone, and the angle of the thin line-shaped reflected light pattern that occurs when light hits furniture, etc. and the screen angle have a certain angular relationship. When printing, a thin reflected light pattern is reproduced in the form of a broken line, resulting in a decrease in quality due to so-called broken lines in the original, and there are also problems such as the production of damaged plates. Such moiré and line breakage were particularly noticeable in the case of linear designs such as buildings, furniture, and striped patterns. Furthermore, there is a lot of wasted work time due to repeated re-pasting of the original onto the cylinder to prevent such moiré and broken lines.
Improvement was desired.
この考案は上記事情に鑑みてなされたものであ
つて、上述の如きモアレ、線切れを容易に防止す
ることができ、したがつて製品の品質の向上、。
損版の減少、作業能率の向上を図ることができる
カラースキヤナーを提供することを目的とする。 This invention was made in view of the above circumstances, and it is possible to easily prevent the above-mentioned moiré and line breakage, thereby improving the quality of the product.
An object of the present invention is to provide a color scanner that can reduce the number of damaged plates and improve work efficiency.
すなわち、この考案は走査用光源からの光を原
稿に照射させる光学系と原稿全体を照明するため
の光源を具備した筒状原稿照明装置と、該照明装
置の周りに同軸的に回転自在に設けられた原稿貼
着用シリンダーとを具備してなるカラースキヤナ
ーにおいて、上記筒状原稿照明装置に、原稿貼着
位置決め用格子状スケールを付した照明カバーを
設けたことを特徴とするカラースキヤナーを提供
するものである。 That is, this invention includes a cylindrical document illumination device that is equipped with an optical system that irradiates the document with light from a scanning light source and a light source that illuminates the entire document, and a cylindrical document illumination device that is coaxially rotatable around the illumination device. In the color scanner, the cylindrical document illumination device is provided with an illumination cover provided with a grid-like scale for positioning the document pasting. This is what we provide.
以下、この考案を図示の実施例を参照して説明
する。 This invention will be explained below with reference to illustrated embodiments.
第１図は本考案に係わるカラースキヤナーの要
部を示すものであつて、１は走査用光源（図示し
ない）からの光を原稿に照射させる光学系と原稿
全体を照明するための光源を内蔵した筒状原稿照
明装置であつて、軸方向に沿つて往復動自在に駆
動される。２は矢線で示す如くこの照明装置１の
周りに同軸的に回転自在に設けられた原稿貼着用
シリンダーである。上記原稿照明装置１は円筒状
をなし先端部分に原稿照明光源たとえば蛍光灯
（図示せず）が設けられ、その周りに円筒状の照
明カバー４が設けられている。さらに、この照明
カバー４の少なくとも一側には、たとえば第２図
に示す如き原稿貼着位置決め用格子状スケール５
が施されている。このスケール５は透明又は半透
明の基材シートに所望の格子状パターンを描いた
ものを照明カバー４の表面に貼着するか、又は照
明カバー４に直接、格子状パターンを描くように
してもよい。なお、照明装置１は円筒状となつて
おり、その円周方向の半分程度が原稿照明光源に
より照明されるようになつているから、前記格子
状パターンはこの照明される部分の半分程度を覆
う程度とすので好ましい。そのようにすれば格子
状パターンに影響されずに原稿を照明できる部分
も存在するので好都合である。この格子状パター
ンは第２図に示すように縦・横の双方の線が、又
はいずれか一方が細線５ａと、この細線５ａの数
本毎に太線５ｂを配したものとし、位置決めの容
易化を図るようにしてもよい。各細線５ａ相互間
および太線５ｂ相互間の間隔は適宜選択し得るも
のであり、たとえば細線５ａ相互間の間隔は１mm
とし、太線５ｂは細線５ａの９本毎に挿入する。
この格子状パターンは一方向の線（すなわち縦線
又は横線）がシリンダー２の周辺（または稜線）
と平行になるようにして設定することが好まし
い。 Figure 1 shows the main parts of a color scanner according to the present invention, in which 1 is an optical system that irradiates a document with light from a scanning light source (not shown), and a light source that illuminates the entire document. It is a built-in cylindrical document illumination device, and is driven to freely reciprocate along the axial direction. Reference numeral 2 denotes a document pasting cylinder coaxially and rotatably provided around the illumination device 1 as shown by the arrow. The document illumination device 1 has a cylindrical shape, and a document illumination light source, such as a fluorescent lamp (not shown), is provided at the tip thereof, and a cylindrical illumination cover 4 is provided around it. Further, on at least one side of the illumination cover 4, there is a grid-like scale 5 for positioning the document pasting, as shown in FIG.
is applied. This scale 5 can be made by pasting a desired grid pattern on a transparent or translucent base sheet to the surface of the lighting cover 4, or by drawing a grid pattern directly on the lighting cover 4. good. The illumination device 1 has a cylindrical shape, and about half of its circumferential direction is illuminated by the document illumination light source, so the grid pattern covers about half of this illuminated area. It is preferable because it is a degree. This is advantageous because there is a portion where the document can be illuminated without being affected by the grid pattern. As shown in Fig. 2, this lattice pattern has a thin line 5a on both the vertical and horizontal lines, or one of them, and a thick line 5b every few thin lines 5a, which facilitates positioning. You may try to do so. The spacing between the thin lines 5a and between the thick lines 5b can be selected as appropriate; for example, the spacing between the thin lines 5a is 1 mm.
Then, a thick line 5b is inserted every nine thin lines 5a.
This grid pattern has lines in one direction (i.e. vertical lines or horizontal lines) that line the periphery (or ridge line) of cylinder 2.
It is preferable to set it so that it is parallel to.
このような構成を有するカラースキヤナーを用
いて、カラー原稿６を原稿貼着用シリンダー２外
周面に貼着する場合、蛍光灯（図示しない）で映
し出された格子状パターンを基準として、カラー
原稿６の角度を調節しながら、前記スクリーン角
度に対して原稿中のパターンが前記モアレや線切
れを生じないような角度を設定しその位置決めを
おこない、ついで接着テープ７等により上記シリ
ンダー２上に固定すればよく、それによつて、カ
ラー原稿６はシリンダー２上にモアレや線切れを
生じない角度で正確に貼着される。 When pasting the color original 6 on the outer circumferential surface of the original sticking cylinder 2 using a color scanner having such a configuration, the color original 6 is attached using a grid pattern projected by a fluorescent light (not shown) as a reference. While adjusting the angle of the screen, set and position the pattern in the document at an angle that does not cause moiré or line breakage with respect to the screen angle, and then fix it on the cylinder 2 with adhesive tape 7 or the like. As a result, the color original 6 can be accurately pasted onto the cylinder 2 at an angle that does not cause moiré or line breakage.
したがつて、本考案によれば原稿照明装置の照
明カバー４に位置決め用格子状スケールを設け、
これを基準として原稿６をシリンダー２上に正確
な角度で貼着することができるから、従来の如き
モアレ、線切れを容易に防止することができ、製
品の品質の向上、損版の減少、作業能率の向上を
図ることができるなど実用上顕著な効果を奏す
る。 Therefore, according to the present invention, a positioning grid scale is provided on the illumination cover 4 of the document illumination device,
Using this as a reference, the original 6 can be pasted onto the cylinder 2 at an accurate angle, making it possible to easily prevent moiré and line breakage as in the past, improving product quality, reducing the number of damaged copies, and This has significant practical effects, such as being able to improve work efficiency.
第１図は本考案に係わるカラースキヤナーの要
部を示す斜視図、第２図は本考案で用いられる原
稿位置決め用の格子状スケールを示す平面図であ
る。
１……原稿照明装置、２……原稿貼着用シリン
ダー、４……照明カバー、５……格子状スケー
ル、５ａ……細線、５ｂ……太線、６……カラー
原稿、７……接着テープ。
FIG. 1 is a perspective view showing the main parts of a color scanner according to the present invention, and FIG. 2 is a plan view showing a lattice scale for document positioning used in the present invention. DESCRIPTION OF SYMBOLS 1... Original illumination device, 2... Original sticking cylinder, 4... Lighting cover, 5... Grid scale, 5a... Thin line, 5b... Thick line, 6... Color original, 7... Adhesive tape.
Claims (1)
系と原稿全体を照明するための光源を具備した
筒状原稿照明装置と、該照明装置の周りに同軸
的に回転自在に設けられた原稿貼着用シリンダ
ーとを具備してなるカラースキヤナーにおい
て、上記筒状原稿照明装置に、原稿貼着位置決
め用格子状スケールを付した照明カバーを設け
たことを特徴とするカラースキヤナー。 (2) 格子状スケールの一方向の線が上記シリンダ
ーの稜線と平行をなすようにして設けられてい
る実用新案登録請求の範囲第１項記載のカラー
スキヤナー。 (3) 格子状スケールの縦、横の線の少なくとも一
方が細線と、該細線の数線毎に設けられた太線
とからなる実用新案登録請求の範囲第１項記載
のカラースキヤナー。[Scope of Claim for Utility Model Registration] (1) A cylindrical document illumination device equipped with an optical system for illuminating the document with light from a scanning light source and a light source for illuminating the entire document, and a coaxial device surrounding the illumination device. The color scanner is equipped with a document pasting cylinder which is rotatably provided, and is characterized in that the cylindrical document illumination device is provided with an illumination cover provided with a grid-like scale for positioning the document pasting. Color scanner. (2) The color scanner according to claim 1, wherein the lattice scale is provided such that lines in one direction are parallel to the ridge lines of the cylinder. (3) The color scanner according to claim 1, wherein at least one of the vertical and horizontal lines of the grid-like scale is a thin line, and a thick line is provided every few lines of the thin line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11279283U JPS6021744U (en) | 1983-07-20 | 1983-07-20 | color scanner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11279283U JPS6021744U (en) | 1983-07-20 | 1983-07-20 | color scanner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6021744U JPS6021744U (en) | 1985-02-14 |
| JPH0423238Y2 true JPH0423238Y2 (en) | 1992-05-29 |
Family
ID=30261346
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11279283U Granted JPS6021744U (en) | 1983-07-20 | 1983-07-20 | color scanner |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6021744U (en) |
-
1983
- 1983-07-20 JP JP11279283U patent/JPS6021744U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6021744U (en) | 1985-02-14 |
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