JPH0432651Y2 - - Google Patents
Info
- Publication number
- JPH0432651Y2 JPH0432651Y2 JP1983047199U JP4719983U JPH0432651Y2 JP H0432651 Y2 JPH0432651 Y2 JP H0432651Y2 JP 1983047199 U JP1983047199 U JP 1983047199U JP 4719983 U JP4719983 U JP 4719983U JP H0432651 Y2 JPH0432651 Y2 JP H0432651Y2
- Authority
- JP
- Japan
- Prior art keywords
- cylindrical lens
- axis
- pulsed laser
- original
- cylindrical
- 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
- 239000011347 resin Substances 0.000 claims description 22
- 229920005989 resin Polymers 0.000 claims description 22
- 239000000463 material Substances 0.000 claims description 11
- 230000003287 optical effect Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 238000007639 printing Methods 0.000 description 4
- 238000007644 letterpress printing Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 201000009310 astigmatism Diseases 0.000 description 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 1
- 229910052753 mercury Inorganic materials 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 1
- 239000004926 polymethyl methacrylate Substances 0.000 description 1
- 238000004611 spectroscopical analysis Methods 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Landscapes
- Optical Systems Of Projection Type Copiers (AREA)
Description
【考案の詳細な説明】
本考案はパルスレーザーを用いた樹脂凸版の製
版装置に関する。[Detailed Description of the Invention] The present invention relates to a plate-making device for resin letterpress using a pulsed laser.
従来、印刷用樹脂凸版は写植又はレーザースキ
ヤンナーによつて作られた光透過性の原版を感光
性樹脂版材に密着させ、水銀ランプで露光後水洗
及び又は現像処理することによつて製版してい
た。 Conventionally, printing resin letterpress plates are made by attaching a light-transmitting original plate made by phototypesetting or a laser scanner to a photosensitive resin plate material, and washing and/or developing it after exposure with a mercury lamp. was.
先に本考案者等は、パルスレーザーを用い、光
透過用文字盤の選択された文字パターンを１つづ
つパルスレーザー光で照射し、その透過光を感光
性樹脂版材の選択された位置に順次に投影露光し
て印刷用の樹脂凸版をつくる方法及び装置を提案
した（特願昭57−78016号、特開昭58−194033号
公報参照、）。 First, the inventors used a pulsed laser to irradiate selected character patterns on a light-transmitting dial one by one with pulsed laser light, and applied the transmitted light to selected positions on a photosensitive resin plate. He proposed a method and apparatus for producing resin relief plates for printing by successive projection exposure (see Japanese Patent Application No. 78016/1982 and Japanese Patent Application Laid-open No. 194033/1983).
この提案の方法及び装置では、従来の写植又は
レーザースキヤンナーによる原版製作工程を省く
利点があるが、文字盤を駆動して文字パターンを
一つづつ選択するため、パルスレーザーのパルス
繰返し周波数よりもむしろ文字盤の駆動速度によ
つて製版速度が制約されるという問題があつた。
一方、凸版印刷方式による新聞業界においては、
多くの版下（樹脂凸版）を短時間に製作する必要
があり、樹脂凸版をできるだけ短時間に製版する
技術が望まれている。 The proposed method and device have the advantage of omitting the original plate production process using conventional phototypesetting or laser scanners, but because the dial is driven to select character patterns one by one, the pulse repetition frequency of the pulsed laser is Rather, there was a problem in that the plate-making speed was restricted by the drive speed of the dial.
On the other hand, in the newspaper industry using the letterpress printing method,
It is necessary to produce a large number of printing plates (resin letterpress plates) in a short period of time, and a technique for making resin letterpress plates in as short a time as possible is desired.
本考案は上記に鑑みなされたものであり、樹脂
凸版の製版時間を短縮する装置を提供することを
目的とする。 The present invention has been made in view of the above, and an object of the present invention is to provide an apparatus that shortens the plate-making time for resin letterpress printing.
以下、添付図を用いて本考案の実施例を詳しく
説明する
第１図に本考案の製版装置の一例を示す。パル
スレーザー源１からのレーザー光を２つのシリン
ドリカルレンズ２，３を用いて細長い平行ビーム
とし、これを駆動機構４により矢印５の方向に移
動する原版６に照射し、その透過光をレンズ７で
拡大して、その拡大倍率に相当する速度で矢印方
向に移動するドラム９又はステージ１０上の感光
性樹脂版材１１に投影露光する。図中、１２はミ
ラーを示す。 Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. Fig. 1 shows an example of the plate-making apparatus of the present invention. Laser light from a pulsed laser source 1 is made into a long and narrow parallel beam using two cylindrical lenses 2 and 3, which is irradiated onto an original 6 moving in the direction of an arrow 5 by a drive mechanism 4, and the transmitted light is transmitted through a lens 7. The image is enlarged and exposed by projection onto the photosensitive resin plate 11 on the drum 9 or stage 10, which moves in the direction of the arrow at a speed corresponding to the enlargement magnification. In the figure, 12 indicates a mirror.
このように本考案では、断面が細長いパルスレ
ーザー光を一定方向に移動する原版に照射し、そ
の透過光を拡大して、その拡大倍率に相当する速
度で且つ原版と反対方向に移動する感光性樹脂版
材に投影・露光するので、樹脂凸版の製版時間
を短縮することができ、原版は比較的小さいの
で経済的であり、レーザースキヤンナーによる原
版製作時間も僅かである。 In this way, in this invention, a pulsed laser beam with a long and narrow cross section is irradiated onto an original plate moving in a certain direction, and the transmitted light is magnified to produce a photosensitive material that moves in the opposite direction to the original plate at a speed corresponding to the magnification magnification. Since the projection and exposure is performed on a resin plate material, the time required for making a resin letterpress plate can be shortened, and since the original plate is relatively small, it is economical, and the time needed to produce the original plate using a laser scanner is also short.
実施例
第１図において、パルスレーザー源１に発振波
長308nmのXeclレーザ（繰り返し周波数100Hz）、
原版６に名刺大のPMMAシートをベースにして
Alを蒸着したもので新聞１頁分の文字パターン
を形成したもの、感光性樹脂版材１１にリジロン
POP（東京応化KK製）、レンズ７に拡大倍率６の
両凸レンズをそれぞれ用い、パルスレーザー光の
断面形状２mm×60mmの帯状、原版の移動速度５〜
10mm／sec、感光性樹脂版材の移動速度30〜60
mm／secの条件下で実施した。その結果、20秒以
内という極めて短時間に樹脂凸版を製版すること
ができた。Example In FIG. 1, the pulse laser source 1 includes a Xecl laser with an oscillation wavelength of 308 nm (repetition frequency 100 Hz),
Based on original version 6 and a business card-sized PMMA sheet.
A photosensitive resin plate material 11 with a character pattern for one page of newspaper formed on it by vapor deposition of Al.
POP (manufactured by Tokyo Ohka KK), each lens 7 uses a biconvex lens with a magnification of 6, the cross-sectional shape of the pulsed laser beam is a strip of 2 mm x 60 mm, and the moving speed of the original plate is 5 ~
10mm/sec, moving speed of photosensitive resin plate material 30 to 60
It was carried out under conditions of mm/sec. As a result, a resin letterpress plate could be made in an extremely short time, within 20 seconds.
又、拡大投影露光のため透過光が感光性樹脂版
材に角度をもつて入射するので、得られた樹脂凸
版は約65°の角度のシヨルダーを形成しており、
この形は印刷精度を向上させる上で有利である。 In addition, because the transmitted light enters the photosensitive resin plate material at an angle due to the enlarged projection exposure, the obtained resin letterpress plate forms a shoulder at an angle of approximately 65°.
This shape is advantageous in improving printing accuracy.
第２図は本考案例に用いたシリンドリカルレン
ズの外観を示す。シリンドリカルレンズの一面２
ａは凸面のシリンドリカルレンズであり、他の２
ｂは前記レンズの光軸と鉛直面で90°回転した光
軸を有する凹面のシリンドリカルレンズである。
通常、帯状断面のビームを形成するレンズには分
光用として非点収差を除去するトロイダルレンズ
があるが極めて高価である。これに対して本考案
に用いるシリンドリカルレンズは通常のシリンド
リカルレンズ製作用の雄又は雌の研磨皿を用いて
製作できるので安価である。 FIG. 2 shows the appearance of the cylindrical lens used in the example of the present invention. One side of cylindrical lens 2
a is a convex cylindrical lens, and the other two
b is a concave cylindrical lens having an optical axis rotated by 90° in the vertical plane with respect to the optical axis of the lens.
Usually, a toroidal lens for removing astigmatism is used for spectroscopy as a lens for forming a beam with a band-shaped cross section, but it is extremely expensive. On the other hand, the cylindrical lens used in the present invention is inexpensive because it can be manufactured using a male or female polishing plate that is normally used for manufacturing cylindrical lenses.
第３図は本考案に用いた２つのシリンドリカル
レンズ２，３の光学的配置を示す。Ａ図は平面
図、Ｂ図は側面図を示す。平行ビームが焦点距離
f1（100mm）のシリンドリカルレンズ２を通過後、
距離ｌ（200mm）でｍ（３）倍に拡大され、この場
所に焦点距離f2（300mm）のシリンドリカルレンズ
３を置き、その透過光を平行となるように構成し
てある。なお、この場合の光学的条件式は次式で
示される。 FIG. 3 shows the optical arrangement of two cylindrical lenses 2 and 3 used in the present invention. Figure A shows a plan view, and Figure B shows a side view. parallel beam is focal length
After passing through the f 1 (100mm) cylindrical lens 2,
It is magnified by m (3) times at a distance l (200 mm), and a cylindrical lens 3 with a focal length f 2 (300 mm) is placed at this location so that the transmitted light becomes parallel. Note that the optical conditional expression in this case is expressed by the following expression.
mf1＝f1−ｌ＝−f2
たゞし、ｍ＞１のときf1＜０
ｍ＜１のときf1＞０
（したがつてｆ＞０は凸レンズ、ｆ＜０は凹
レンズを示す）
なお、この実施例では、レーザー源から出射す
る縦・横比（ｙ／ｘ＝６mm／20mm）の矩形ビーム
を２mm／60mmの帯状ビームに形成するようにして
ある。図中、Ｒは曲率半径を示す。 mf 1 = f 1 - l = - f 2 , and when m > 1, f 1 <0; when m < 1, f 1 > 0 (therefore, f > 0 indicates a convex lens, and f < 0 indicates a concave lens). Note that in this embodiment, a rectangular beam with an aspect ratio (y/x=6 mm/20 mm) emitted from a laser source is formed into a strip beam of 2 mm/60 mm. In the figure, R indicates the radius of curvature.
以上説明したように、本考案の製版装置は安価
な２つのシリンドリカルレンズを用いて帯状断面
のパルスレーザービームを作り、これを一定方向
に移動する原版に照射してその透過光を拡大して
その拡大倍率に相当する速度で原版とは反対方向
に移動する感光性樹脂版材に投影・露光する方式
であり、製版時間を短縮できるので極めて有用で
ある。 As explained above, the plate-making device of the present invention uses two inexpensive cylindrical lenses to create a pulsed laser beam with a band-shaped cross section, irradiates the original plate moving in a fixed direction, magnifies the transmitted light, and then This method projects and exposes light onto a photosensitive resin plate material that moves in the opposite direction to the original plate at a speed corresponding to the enlargement magnification, and is extremely useful because it can shorten the plate-making time.
第１図は本考案の製版装置の光学系の一例を示
す。第２図は本考案の実施例に用いたシリンドリ
カルレンズの外観図、第３図は本考案の実施例に
用いたシリンドリカルレンズの光学的配置を示
す。
図中の符号、１……パルスレーザー源、２，３
……シリンドリカルレンズ、４……駆動機構、６
……原版、７……レンズ、９……ドラム、１０…
…ステージ、１１……感光性樹脂版材。
FIG. 1 shows an example of the optical system of the plate making apparatus of the present invention. FIG. 2 is an external view of the cylindrical lens used in the embodiment of the present invention, and FIG. 3 shows the optical arrangement of the cylindrical lens used in the embodiment of the present invention. Codes in the figure: 1...Pulse laser source, 2, 3
... Cylindrical lens, 4 ... Drive mechanism, 6
...original version, 7...lens, 9...drum, 10...
...Stage, 11...Photosensitive resin plate material.
Claims (1)
の縦のｙ軸方向に短く、横のｘ軸方向に長い矩形
ビームを縦のｙ軸方向で短縮し、横のｘ軸方向に
延長した帯状ビームにする、パルスレーザー源に
近い第１のシリンドリカルレンズとパルスレーザ
ー源から遠い第２のシリンドリカルレンズ、帯状
レーザービームを透過するネガ又はポジ形の原版
を一定方向に移動させる原版駆動機構、前記の原
版の透過ビームを感光性樹脂版材に拡大投影する
ためのレンズ及び前記の感光性樹脂版材を取りつ
け感光性樹脂版材が前記の拡大倍率に前記の原版
の移動速度を乗じた速度で原版と反対方向に駆動
するドラム又はステージを備え、上記の第１のシ
リンドリカルレンズの入射面はｘ軸に平行な軸心
を持つ小さいアールの凸状の円筒面から成り、上
記の第１のシリンドリカルレンズの出射面はｙ軸
に平行な軸心を持つ大きいアールの凹状の円筒面
から成り、上記の第２のシリンドリカルレンズの
入射面はｘ軸に平行な軸心を持つ小さいアールの
凹状の円筒面から成り、上記の第２のシリンドリ
カルレンズの出射面はｙ軸に平行な軸心を持つ大
きいアールの凸状の円筒面から成ることを特徴と
するパルスレーザーによる樹脂凸版の製版装置。 a pulsed laser source; a rectangular beam from the pulsed laser source that is short in the vertical y-axis direction and long in the horizontal x-axis direction is shortened in the vertical y-axis direction and made into a strip-shaped beam that is extended in the horizontal x-axis direction; a first cylindrical lens close to the pulsed laser source and a second cylindrical lens far from the pulsed laser source; an original drive mechanism that moves a negative or positive original in a fixed direction through which the band-shaped laser beam passes; a transmitted beam of the original; A lens for enlarging and projecting the image onto a photosensitive resin plate material and the photosensitive resin plate material are attached, and the photosensitive resin plate material moves in the opposite direction to the original plate at a speed equal to the magnification factor multiplied by the moving speed of the original plate. The first cylindrical lens has a driving drum or stage, the entrance surface of the first cylindrical lens is a convex cylindrical surface with a small radius and the axis parallel to the x-axis, and the exit surface of the first cylindrical lens is The second cylindrical lens has a concave cylindrical surface with a large radius having an axis parallel to the y-axis, and the entrance surface of the second cylindrical lens has a concave cylindrical surface with a small radius having an axis parallel to the x-axis. An apparatus for making a resin relief plate using a pulsed laser, characterized in that the exit surface of the second cylindrical lens consists of a convex cylindrical surface with a large radius and an axis parallel to the y-axis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4719983U JPS59153548U (en) | 1983-03-31 | 1983-03-31 | Pulsed laser-based resin letterpress plate-making device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4719983U JPS59153548U (en) | 1983-03-31 | 1983-03-31 | Pulsed laser-based resin letterpress plate-making device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59153548U JPS59153548U (en) | 1984-10-15 |
| JPH0432651Y2 true JPH0432651Y2 (en) | 1992-08-06 |
Family
ID=30177749
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4719983U Granted JPS59153548U (en) | 1983-03-31 | 1983-03-31 | Pulsed laser-based resin letterpress plate-making device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59153548U (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54111832A (en) * | 1978-02-22 | 1979-09-01 | Hitachi Ltd | Exposure device |
| JPS57185439A (en) * | 1981-04-30 | 1982-11-15 | Rca Corp | Projection type radiative exposure system |
-
1983
- 1983-03-31 JP JP4719983U patent/JPS59153548U/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54111832A (en) * | 1978-02-22 | 1979-09-01 | Hitachi Ltd | Exposure device |
| JPS57185439A (en) * | 1981-04-30 | 1982-11-15 | Rca Corp | Projection type radiative exposure system |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59153548U (en) | 1984-10-15 |
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