JPS5814133A - Picture scanning and recording device - Google Patents
Picture scanning and recording deviceInfo
- Publication number
- JPS5814133A JPS5814133A JP56112563A JP11256381A JPS5814133A JP S5814133 A JPS5814133 A JP S5814133A JP 56112563 A JP56112563 A JP 56112563A JP 11256381 A JP11256381 A JP 11256381A JP S5814133 A JPS5814133 A JP S5814133A
- Authority
- JP
- Japan
- Prior art keywords
- light
- light beam
- image
- optical
- optic
- 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
- 239000000463 material Substances 0.000 claims abstract description 7
- 230000005284 excitation Effects 0.000 claims description 10
- 230000003287 optical effect Effects 0.000 abstract 9
- 238000003384 imaging method Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000007796 conventional method Methods 0.000 description 2
- 238000012937 correction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
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
- H04N1/04—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa
- H04N1/06—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 cylindrical picture-bearing surfaces, i.e. scanning a main-scanning line substantially perpendicular to the axis and lying in a curved cylindrical surface
- H04N1/0671—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 cylindrical picture-bearing surfaces, i.e. scanning a main-scanning line substantially perpendicular to the axis and lying in a curved cylindrical surface with sub-scanning by translational movement of the main-scanning components
- H04N1/0678—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 cylindrical picture-bearing surfaces, i.e. scanning a main-scanning line substantially perpendicular to the axis and lying in a curved cylindrical surface with sub-scanning by translational movement of the main-scanning components using a lead-screw or worm
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/29—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the position or the direction of light beams, i.e. deflection
- G02F1/33—Acousto-optical deflection devices
-
- 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
- H04N1/032—Details of scanning heads ; Means for illuminating the original for picture information reproduction
- H04N1/036—Details of scanning heads ; Means for illuminating the original for picture information reproduction for optical reproduction
-
- 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
- H04N1/06—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 cylindrical picture-bearing surfaces, i.e. scanning a main-scanning line substantially perpendicular to the axis and lying in a curved cylindrical surface
- H04N1/0657—Scanning a transparent surface, e.g. reading a transparency original
-
- 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
- H04N1/1911—Simultaneously or substantially simultaneously scanning picture elements on more than one main scanning line, e.g. scanning in swaths
-
- 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
- H04N1/1911—Simultaneously or substantially simultaneously scanning picture elements on more than one main scanning line, e.g. scanning in swaths
- H04N1/1916—Simultaneously or substantially simultaneously scanning picture elements on more than one main scanning line, e.g. scanning in swaths using an array of elements displaced from one another in the main scan direction, e.g. a diagonally arranged 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
- H04N1/19—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
- H04N1/1911—Simultaneously or substantially simultaneously scanning picture elements on more than one main scanning line, e.g. scanning in swaths
- H04N1/1916—Simultaneously or substantially simultaneously scanning picture elements on more than one main scanning line, e.g. scanning in swaths using an array of elements displaced from one another in the main scan direction, e.g. a diagonally arranged array
- H04N1/1917—Staggered element array, e.g. arrays with elements arranged in a zigzag
-
- 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
- H04N1/06—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 cylindrical picture-bearing surfaces, i.e. scanning a main-scanning line substantially perpendicular to the axis and lying in a curved cylindrical surface
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Optical Systems Of Projection Type Copiers (AREA)
- Fax Reproducing Arrangements (AREA)
- Facsimile Image Signal Circuits (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は、原画を光電走査して得た画像信号により、記
録側の露光手段を制御して、感光材料上に複製画像を記
録する画像走査記録装置に関するもので、とくに、記録
側の露光手段に複数本の光ビームを使用し、これらの光
ビームを画像信号に基づいてそれぞれ独立に変調するこ
とにより網目版画像を記録する装置に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an image scanning recording apparatus that records a duplicate image on a photosensitive material by controlling an exposure means on the recording side using an image signal obtained by photoelectrically scanning an original image. In particular, the present invention relates to an apparatus for recording halftone images by using a plurality of light beams in an exposure means on the recording side and independently modulating these light beams based on image signals.
この種の従来の装置は、例えば、特公昭５２−３３５２
３号公報に開示されている如く、光源からの光ビームを
、ハーフミラ−およびミラーの組合わせにより複数本の
光ビームに分割し、原画からの画像信号に応じて、各光
ビームに対応して配置された電気光学的変調素子により
、各光ビームをそれぞれ独立に制御して、網目版画像を
記録する方法、あるいは特開昭５２−１１８３０２号公
報、特開昭５２−１２３７０１号公報に開示されている
如く、光源からの光ビームを特殊な被膜が施こされた平
行平面板を有する光ビーム分割装置により複数本の光ビ
ームに分割するととも（乙各光ビームを前記特公昭５２
−３３５２３号公報のものと同様、原画からの画像信号
に応じて電気光学的変調素子にょりそれぞれ独立に制御
して網目版画像を記録する方法が知られている。This type of conventional device is known, for example, from Japanese Patent Publication No. 52-3352.
As disclosed in Publication No. 3, a light beam from a light source is divided into a plurality of light beams by a combination of a half mirror and a mirror. A method of recording a halftone image by independently controlling each light beam using arranged electro-optic modulation elements, or a method disclosed in JP-A-52-118302 and JP-A-52-123701. The light beam from the light source is divided into a plurality of light beams by a light beam splitting device having a parallel plane plate coated with a special coating, as shown in the above-mentioned Japanese Patent Publication No. 52.
Similar to the method disclosed in Japanese Patent No. 33523, a method is known in which a halftone image is recorded by independently controlling electro-optic modulation elements according to image signals from an original image.
しかしながら、かかる従来方法に使用される電気光学的
変調素子は、周囲の温度変化に対する影響が太きいため
、実際に使用する際には前記特公昭５２−３３５２３号
公報に記載されている如く温度制御装置を必要とするた
め、装置自体が大型化する難点を有するとともに、各光
ビームの変調、すなわち各光ビームのＯＮ・ＯＦＦ制御
を完全に行なうためには、電気光学的変調素子に・・イ
アスミ圧を印加する必要があるなど、回路構成の点でも
問題があった。However, since the electro-optic modulator used in such conventional methods is greatly affected by changes in ambient temperature, when actually used, temperature control is required as described in Japanese Patent Publication No. 52-33523. This requires a device, which has the disadvantage of increasing the size of the device itself.In addition, in order to completely modulate each light beam, that is, control ON/OFF of each light beam, it is necessary to use an electro-optic modulation element... There were also problems with the circuit configuration, such as the need to apply pressure.
また、前記従来方法に使用されている光ビーム分割装置
にもそれぞれ難点があった。すなわち、前記特公昭５２
−３３５２３号公報に開示されている光ビーム分割装置
は、ノ・−７ミラーおよびミラーの組合わせにより構成
されているが、光ビームが順次ハーフミラ−を透過して
光ビームの分割を行なっているため、各光ビームの強度
が揃わない難点があり、一方、前記特開昭５２−１１８
３０２号公報等に使用される光ビーム分割装置（１１分
割する光ビーム数を増加すればそれだり大きなものが必
要になり、大きくなればなる稈元ビーム入射面と射出面
との間の平行度も出しに＜＜、製作コストも高価になる
難点があった。Furthermore, the light beam splitting devices used in the conventional methods have their own drawbacks. In other words, the above-mentioned
The light beam splitting device disclosed in Publication No. 33523 is composed of a No.-7 mirror and a combination of mirrors, and the light beam is split by passing through the half mirrors in sequence. Therefore, there is a problem that the intensity of each light beam is not uniform.
The light beam splitting device used in Publication No. 302, etc. (11If the number of light beams to be split is increased, a larger one will be required, and as the number of light beams increases, the parallelism between the culm beam entrance surface and the exit surface will increase. However, it also had the disadvantage of being expensive to produce.
そこで本発明は、前記従来の装置におけるＭｌｒ点を解
消するため、光ビーム分配器に回折格子を採用するとと
もに、該光ビーム分配器によって分割された複数本の光
ビームを複数個の超音波励振部分が音響光学媒体上に並
設された少なくとも１個の音響光学光変調素子により、
それぞれ独立に変調し得るようにして、網目版画像を記
録する際に必要な光点列を作成しようとするものである
。Therefore, in order to eliminate the Mlr point in the conventional device, the present invention employs a diffraction grating in the light beam splitter, and also applies ultrasonic excitation to the plurality of light beams split by the light beam splitter. at least one acousto-optic light modulator whose portions are juxtaposed on the acousto-optic medium;
The aim is to create a light spot array necessary for recording a halftone image by making it possible to modulate each of them independently.
第１図は、本発明に係る装置が適用されるカラースキャ
ナを簡略化して図示した実施例であり、原画シリンダ１
１が、記録シリンダ１２とともにモータ１５により適当
な速度で回転させられると同時に、モーター１８により
、減速ＢＡ１．９を介して送りねじ２０が回転させられ
て、記録ヘッド１４と走査ヘッド１３は、適当な速度で
シリンダ軸線方向に送られる。そのため原画シリンダ１
１に装着された原画は、走査ヘッド１３によって光電的
に走査され、画像信号が走査ヘッド１３から出力される
。FIG. 1 is a simplified embodiment of a color scanner to which an apparatus according to the present invention is applied, in which an original image cylinder 1
1 is rotated together with the recording cylinder 12 by the motor 15 at an appropriate speed, and at the same time, the motor 18 rotates the feed screw 20 via the deceleration BA 1.9, so that the recording head 14 and the scanning head 13 are rotated at an appropriate speed. It is sent in the direction of the cylinder axis at a speed of Therefore, original picture cylinder 1
1 is photoelectrically scanned by a scanning head 13, and an image signal is output from the scanning head 13.
走査ヘッド１３から電気的な色分解信号として色演算回
路２１ に入力された画像信号は、該色演算回路２１で
、一般のカラースキャナと同様、印刷に適するように色
修正および階調修正などが施こされた後、修正済みの画
像信号として、ドツト形成回路２２に送られる。このド
ツト形成回路２２においては、回転エンコーダ１６から
の信号に対応してパルス発生器２４で作成されるパルス
信号、および前記画像信号に基づいて、網点形成信号が
作成され、該網点形成信号は駆動回路２３を介して記録
ヘッド１４に入力され、記録ヘッド１４からの各光ビー
ムを制御することにより、記録シリンダ１２上のフィル
ム６に網目版画像が記録される。The image signal inputted from the scanning head 13 as an electrical color separation signal to the color calculation circuit 21 undergoes color correction, gradation correction, etc. to make it suitable for printing, as in a general color scanner. After this, the image signal is sent to the dot forming circuit 22 as a corrected image signal. In this dot forming circuit 22, a halftone dot forming signal is created based on a pulse signal created by a pulse generator 24 in response to a signal from the rotary encoder 16, and the image signal. is input to the recording head 14 via the drive circuit 23, and by controlling each light beam from the recording head 14, a halftone image is recorded on the film 6 on the recording cylinder 12.
なお、第１図に図示したカラースキャナの構成は説明を
簡単にするため、非常に簡略化されているが、本発明に
係る装置はかかる構成のものだけに駆足されるものでは
ない。Although the configuration of the color scanner illustrated in FIG. 1 is greatly simplified for ease of explanation, the apparatus according to the present invention is not limited to such a configuration.
第２図は、本発明に係る画像走査記録装置の１実施例を
示すもので、１はレーザー等の光源、２は該光源１から
の光ビームを回１）１現像により複数本の光ビームに分
割するための回折格子から成る光ビーム分配器、３は該
光ビーム分配器からの距離が、その焦点距離に相当する
様な位置に配置された凸レンズ、４は複数個の超音波励
振部分がその音響光学媒体上に並設された音響光学光変
調素子、５は結像レンズ系、６は記録用シリンダ１２に
装着された感光材料のフィルムである。FIG. 2 shows an embodiment of the image scanning recording device according to the present invention, in which 1 is a light source such as a laser, 2 is a light beam from the light source 1, and 1) a plurality of light beams are produced by one development. 3 is a convex lens arranged at a position such that the distance from the light beam splitter corresponds to its focal length; 4 is a plurality of ultrasonic excitation parts; 5 is an acousto-optic light modulating element arranged in parallel on the acousto-optic medium, 5 is an imaging lens system, and 6 is a film of photosensitive material mounted on the recording cylinder 12.
かかる画像走査記録装置は、第１図の記録ヘッド１４に
内蔵されており、ドツト形成回路２２で作成された網点
形成信号は、駆動回路２３を介して前記音響光学光変調
素子４の各超音波励振部分に印加され、該超音波励振部
分に対応して入射する各光ビームを、それぞれ独立にＯ
Ｎ・ＯＦＦ制御する様に構成されている。Such an image scanning recording device is built in the recording head 14 shown in FIG. Each light beam applied to the sonic excitation part and incident on the ultrasonic excitation part is independently
It is configured to perform N/OFF control.
したがって、光源１からの光ビームは、まず光ビーム分
配器２により複数本の光ビームに分割された後、凸レン
ズ３によりそれぞれ平行光ビームに変換され、該複数本
の平行光ビームは、音響光学光変調素子４の各超音波励
振部分に対応して当該光変調素子４に入射し、画像信号
に応じてそれぞれ独立に変調され、ＯＮ・ＯＦＦ制御さ
れる。かかる光変調素子４からの光ビームは、次に結像
レンズ系５により所定の倍率で縮小されて感光材料６に
画像信号に応じた網点を走査線順次に形成し、もって原
画に対応した網目版画像を複製記録するものである。Therefore, the light beam from the light source 1 is first divided into a plurality of light beams by the light beam splitter 2, and then converted into parallel light beams by the convex lens 3, and the plurality of parallel light beams are converted into acousto-optic The light enters the light modulation element 4 corresponding to each ultrasonic excitation portion of the light modulation element 4, is independently modulated according to the image signal, and is controlled to be turned on or off. The light beam from the light modulation element 4 is then reduced by a predetermined magnification by an imaging lens system 5 to form halftone dots corresponding to the image signal on the photosensitive material 6 sequentially in scanning lines, thereby corresponding to the original image. This is to record a copy of a halftone image.
本発明に係る画像走査記録装置では、光ビーム分配器と
して回折格子を使用しているため、従来の光ビーム分割
手段に比較して小型化し得るとともに、光ビーム使用効
率が良好であり、しかも光ビーム変調素子として超音波
励振部分が単一の音響光学媒体上に複数個並設された音
響光学光変調素子を使用しているため、前記特公昭５２
−３３５２３号公報、特開昭５２−１１８３０２号公報
、特開昭５２−１２３７０１号公報に記載された電気光
学的光変調素子を使用する従来方法と比較して、安定性
に富み、かつ複数個の光変調素子を並設する場合と比較
しても小型化することができ、非常に実用性のあるもの
と云える。Since the image scanning recording device according to the present invention uses a diffraction grating as a light beam splitter, it can be downsized compared to conventional light beam splitting means, and has good light beam usage efficiency. Since an acousto-optic light modulation element in which a plurality of ultrasonic excitation parts are arranged in parallel on a single acousto-optic medium is used as a beam modulation element, the aforementioned Japanese Patent Publication No. 52
-33523, JP-A-52-118302, and JP-A-52-123701 which use electro-optic light modulation elements, are more stable and more The size can be reduced compared to the case where two light modulation elements are arranged in parallel, and it can be said to be very practical.
なお、第２図の実施例においては、複数の超音波励振部
分を有する音響光学光変調素子が１個の場合を図示した
が、使用する光ビームの本数が多い場合等、必要に応じ
て尚該光変調素子をさらに並設することも可能である。In addition, in the example of FIG. 2, the case where there is one acousto-optic light modulation element having a plurality of ultrasonic excitation parts is illustrated, but if necessary, such as when a large number of light beams are used, etc. It is also possible to further arrange the light modulation elements in parallel.
また、回折格子２は、周知のように、格子面が平面のも
のと凹面のものがあり、また、透過型と反射型があって
、透過型のものはさらに振幅格子と濃度分布で格子を形
成する位相格子があるが電率発明の実施例はいずれの回
折格子でもよいが、回折効率の高い位相格子が望ましい
。In addition, as is well known, the diffraction grating 2 has a flat grating surface and a concave grating surface, as well as a transmission type and a reflection type. Although there is a phase grating to be formed, any diffraction grating may be used in the embodiment of the electric conductivity invention, but a phase grating with high diffraction efficiency is desirable.
以上要するに本発明の構成は、複数の光ビームを、音響
光学光変調素子で画像信号に応じて、それぞれ独立に変
調することにより、画像を複製記録する画像走査記録装
置において、光源と、該光源からの光ビームを複数本の
光ビームに分割するだめの光ビーム分配器と、該光ビー
ム分配器から入射するこれらの複数本の光ビームを各党
ビームごとに独立して変調し得るような複数個の超音波
励振部分が音響光学媒体上に並設された１個の前記音響
光学光変調素子と、該光変調素子からの射出光ビームに
対応して記録材料」−に微小光点列を作成するための結
像レンズ系とで構成した画像走査記録装置であり、更に
、前記光ビーム分配器に回折格子と凸レンズとを用いた
ものであるから、次の効果を奏する。In summary, the present invention provides an image scanning recording apparatus that copies and records an image by independently modulating a plurality of light beams using an acousto-optic light modulator according to an image signal. a light beam splitter for splitting the light beam from the light beam into a plurality of light beams, and a plurality of light beam splitters for independently modulating each of the plurality of light beams incident from the light beam splitter. One of the above-mentioned acousto-optic light modulators has two ultrasonic excitation parts arranged in parallel on an acousto-optic medium, and a microscopic light spot array is applied to the recording material in response to the light beam emitted from the light modulator. This is an image scanning and recording apparatus composed of an imaging lens system for creating an image, and furthermore, a diffraction grating and a convex lens are used in the light beam splitter, so that the following effects are achieved.
■光ビーム分配器および複数個の超音波励振部分を、音
響光学媒体上に並設した、音響光学光変調素子を採用し
て光点列を作成したので、小形で安価な網目画像走査記
録装置とすることができ、しかも音響光学光変調素子で
あるので、電気光学光変調素子と違って、温度管理をす
る必要もな（、偏光板等が不用となって制御も簡単で小
形化することができる。■A light beam splitter and multiple ultrasonic excitation parts are arranged side by side on an acousto-optic medium to create a light spot array, making it a small and inexpensive mesh image scanning and recording device. Moreover, since it is an acousto-optic light modulator, unlike electro-optic light modulators, there is no need for temperature control (no need for polarizing plates, etc., easy control, and miniaturization). Can be done.
■光ビーム分配器に回折格子を用いたので、扁平な小形
軽量の光ビーム分配器とすることができ、（９）
装置処理の小型化に好都合とすることができる。(2) Since a diffraction grating is used in the light beam splitter, it can be made into a flat, small and lightweight light beam splitter, and (9) it is convenient for downsizing the device processing.
■回折格子と組合された凸レンズの焦点距離を変えれば
、平行光ビームのピッチを容易に変えることができる。■By changing the focal length of the convex lens combined with the diffraction grating, the pitch of the parallel light beam can be easily changed.
第１図は本発明の実施例の装置図、第２図は本発明の実
施例のブロック図を示す。
】・・・光源
２・・・光ビーム分配器
４・・・音響光学光変調素子
５・・・結像レンズ系
６・・・感光材料
代理人 弁理士 岡 部 吉 彦
（１０）FIG. 1 shows a device diagram of an embodiment of the invention, and FIG. 2 shows a block diagram of an embodiment of the invention. ]... Light source 2... Light beam splitter 4... Acousto-optic light modulator 5... Imaging lens system 6... Photosensitive material agent Patent attorney Yoshihiko Okabe (10)
Claims (2)
号に応じて、それぞれ独立に変調することにより、網目
版画像を複製記録する画像走査記録装置において、光源
と、該光源からの光ビームを複数本の光ビームに分割す
るための光ビーム分配器と、入射するこれらの複数本の
光ビームを各光ビームごとに独立して変調し得るように
、複数個の超音波励振部分が音響光学媒体上に並設され
た少なくとも１個の光変調素子によって、記録材料上に
微小光点列を作成するようにした画像走査記録装置(1) In an image scanning recording device that copies and records a halftone image by independently modulating a plurality of light beams using an acousto-optic light modulator according to an image signal, a light source and a light beam from the light source are used. A light beam splitter for splitting the beam into a plurality of light beams, and a plurality of ultrasonic excitation parts so that each of the incident light beams can be independently modulated. An image scanning recording device that creates a minute light spot array on a recording material using at least one light modulation element arranged in parallel on an acousto-optic medium.
せで構成した特許請求の範囲第１項に記載の画像走査記
録装置(2) The image scanning recording device according to claim 1, wherein the light beam splitter is configured by a combination of a diffraction grating and a convex lens.
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56112563A JPS5814133A (en) | 1981-07-18 | 1981-07-18 | Picture scanning and recording device |
| US06/395,436 US4506275A (en) | 1981-07-13 | 1982-07-06 | Image scanning and recording device |
| FR8212204A FR2509556B1 (en) | 1981-07-13 | 1982-07-12 | IMAGE SCANNING AND RECORDING DEVICE |
| DE19823226208 DE3226208A1 (en) | 1981-07-13 | 1982-07-13 | DEVICE FOR SCANING AND RECORDING IMAGES |
| GB08220316A GB2106738B (en) | 1981-07-13 | 1982-07-13 | Image scanning and recording device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56112563A JPS5814133A (en) | 1981-07-18 | 1981-07-18 | Picture scanning and recording device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5814133A true JPS5814133A (en) | 1983-01-26 |
Family
ID=14589806
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56112563A Pending JPS5814133A (en) | 1981-07-13 | 1981-07-18 | Picture scanning and recording device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5814133A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4881551A (en) * | 1971-09-18 | 1973-10-31 | ||
| JPS5190601A (en) * | 1975-02-07 | 1976-08-09 |
-
1981
- 1981-07-18 JP JP56112563A patent/JPS5814133A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4881551A (en) * | 1971-09-18 | 1973-10-31 | ||
| JPS5190601A (en) * | 1975-02-07 | 1976-08-09 |
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