JPS58168380A - Original reader - Google Patents

Original reader

Info

Publication number
JPS58168380A
JPS58168380A JP57052411A JP5241182A JPS58168380A JP S58168380 A JPS58168380 A JP S58168380A JP 57052411 A JP57052411 A JP 57052411A JP 5241182 A JP5241182 A JP 5241182A JP S58168380 A JPS58168380 A JP S58168380A
Authority
JP
Japan
Prior art keywords
state image
mark
magnification
zoom
image sensor
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
Application number
JP57052411A
Other languages
Japanese (ja)
Other versions
JPS6336187B2 (en
Inventor
Hiroshi Mitsuda
満田 浩
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP57052411A priority Critical patent/JPS58168380A/en
Publication of JPS58168380A publication Critical patent/JPS58168380A/en
Publication of JPS6336187B2 publication Critical patent/JPS6336187B2/ja
Granted legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/04Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Lens Barrels (AREA)
  • Image Input (AREA)
  • Facsimile Scanning Arrangements (AREA)
  • Editing Of Facsimile Originals (AREA)

Abstract

PURPOSE:To set up optional magnification accurately by putting a reference mark on a reference surface and driving a zoom lens so that the length of a mark putted by an output signal of a solid state image pickup element coincides with the reference value. CONSTITUTION:A black reference mark is put on the reference surface close to the reading position of an original and a mark signal due to the output signal of the solid state image pickup element is inputted to a counter 13. The output of the counter 13 is applied to a comparator 15 and compared with a reference value from an ROM14 and a pulse motor 17, a zoom driving means, is controlled by the output of the comparator 15 through a motor controlling circuit 16. By changing the reference value to be stored in the ROM14, zooming can be set up on a position having optional magnification.

Description

【発明の詳細な説明】 この発明はズームレンズを使用した原稿読取装置に関す
るものである。
DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a document reading device using a zoom lens.

従来、この種の装置として第1図に示すものがあった。Conventionally, there has been a device of this type as shown in FIG.

図において、(1)は原稿、(2)及び(3)は原稿(
1)を搬送するときのガイド板、(4)は原稿(1)を
照明する螢光灯、(5)はズームレンズ、(6)は−次
元固体撮像素子である。
In the figure, (1) is the original, (2) and (3) are the original (
1) is a guide plate for conveying the original (1), (4) is a fluorescent lamp that illuminates the original (1), (5) is a zoom lens, and (6) is a -dimensional solid-state image sensor.

次に動作について説明する。Next, the operation will be explained.

原稿面の書画像は、ズームレンズ(5)によって−次元
固体撮像素子(6)の受光面上に結像し、該撮像素子(
6)により電気信号に変換される。このとき原稿(1)
は−次元固体撮像素子(6)の電気的な走査と同期して
同図の矢印X方向に搬送ローラ(図示せず)等の手段に
よって搬送される。上記ズームレンズ(5)の効果は、
読み取るべき原稿(1)の大きさや書画像の細かさに応
じてレンズの倍率を変化させて常に最適の状態で原稿(
1)を読み取ることができることにある。例えばA3判
、84判、A4判の3種類の原稿の全面を読み取りたい
ときにはズーミングによってそれぞれの有効読取り幅を
2975m。
The calligraphy image on the manuscript surface is imaged by the zoom lens (5) onto the light-receiving surface of the -dimensional solid-state image sensor (6), and the image sensor (
6) into an electrical signal. At this time, the manuscript (1)
is conveyed in the direction of arrow X in the figure by a means such as a conveyance roller (not shown) in synchronization with the electrical scanning of the -dimensional solid-state image sensor (6). The effect of the zoom lens (5) above is
The magnification of the lens is changed according to the size of the original (1) to be read and the fineness of the document image, so that the original (1) is always read in the optimal condition.
1) being able to read. For example, if you want to read the entire surface of three types of documents: A3, 84, and A4, you can zoom to increase the effective reading width to 2,975 m.

256fl、210■に設定すればよい。It is sufficient to set it to 256fl and 210■.

このようなズーミングの設定は従来サーボ機構により行
われていた。第2図はこのようなサーボ回路の構成例を
示す図で、(7)はズーミング機構の移動量を検出する
ためのポテンショメータ、(8)はズーミング位置を設
定するための基準電圧を供給する抵抗列、(9)は原稿
サイズに応じて基準電圧を切り換えるための切り換えス
イッチ、叫は差動増幅器、αυはズーミング機構を駆動
するための直流モータで、これはポテンショメータ(7
)の検出電圧が上記基準電圧と一致するまでズーミング
機槍詔よびポテンショメータ(7)を駆動するものであ
る。
Such zooming settings have conventionally been performed using a servo mechanism. Figure 2 is a diagram showing an example of the configuration of such a servo circuit, where (7) is a potentiometer for detecting the amount of movement of the zooming mechanism, and (8) is a resistor that supplies a reference voltage for setting the zooming position. Column (9) is a changeover switch for switching the reference voltage according to the document size, column (9) is a differential amplifier, αυ is a DC motor to drive the zooming mechanism, and this is a potentiometer (7).
) is used to drive the zooming machine lever and potentiometer (7) until the detected voltage coincides with the reference voltage.

しかしながら、このようなサーボ回路によってズーミン
グ機構を制御するためには、複雑な調整が必要なうえ、
使用しているうちに経年変化をおこす可能性があり、し
かもズーミング位置の設定精度もあまり良くない。例え
ば基準電圧の設定を一例について説明すると、まず手動
によって必要な倍率が得られる位置にズーム機構を動か
し、その時のポテンショメータ(7)の検出電圧に一致
するように抵抗列(8)を操作し基準電圧を設定する。
However, in order to control the zooming mechanism using such a servo circuit, complicated adjustments are required, and
There is a possibility that it may deteriorate over time while being used, and the accuracy of setting the zoom position is also not very good. For example, to explain how to set the reference voltage, first manually move the zoom mechanism to a position where the required magnification is obtained, then operate the resistor string (8) to match the voltage detected by the potentiometer (7) at that time. Set the voltage.

そしてこの際、ズームレンズ□(51の倍率変化量とポ
テンショメータ(7)の移動量との関係は直線的ではな
いから、各ズーミング位置に対する基準電圧をそれぞれ
上記の方法で設定する必要がある。従って、あらかじめ
設定したズーミング位置以外の任意の倍率位置にズーミ
ングを設定することができない欠点がある。
At this time, since the relationship between the amount of change in magnification of the zoom lens □ (51) and the amount of movement of the potentiometer (7) is not linear, it is necessary to set the reference voltage for each zooming position using the method described above. However, there is a drawback that zooming cannot be set to any magnification position other than the preset zooming position.

この発明は上記のような従来のものの欠点を除去するた
めになされたもので、原稿読取り位置に近接して配置し
た基準面に所定の長さの基準マークを記しておき、ズー
ミング位置を設定する場合はこのマークを読取り、電気
信号上においてマーク部分の長さを検出し、その長さが
あらかじめ計算して設定した値に等しくなるようズーム
位置を制御することにより原稿のサイズに応じて正確な
ズーミング位置の設定ができるようにした原稿読み取り
装置を提供することを目的としている。
This invention was made in order to eliminate the above-mentioned drawbacks of the conventional method.A reference mark of a predetermined length is written on a reference surface placed close to a document reading position, and the zooming position is set. If this is the case, the mark is read, the length of the marked part is detected on the electrical signal, and the zoom position is controlled so that the length is equal to the pre-calculated and set value. An object of the present invention is to provide a document reading device that allows setting of a zooming position.

以下、この発明の一実施例を図について説明する。第3
図は本発明の一実施例による原稿読み取り装置の原稿ガ
イド(2)のレンズ側の正面図で、図において、α2は
ガイド(2)の中央部を黒色に塗装して形成された基準
マークであり、読取り走査線はこの幅、即ち横方向の長
さlの塗装面(2)を矢印Yの方向に横切るようになっ
ている。ズーミング位置を設定する場合は原稿(1)を
搬送する前にまずガイド板(2)の表面を光電変換し、
電気信号における塗装部α2の幅を計測し、その結果に
もとづいてズーミング機構の移動方向と移動量とを制御
する。
An embodiment of the present invention will be described below with reference to the drawings. Third
The figure is a front view of the lens side of the document guide (2) of the document reading device according to an embodiment of the present invention. In the figure, α2 is a reference mark formed by painting the center part of the guide (2) black. The reading scanning line crosses the painted surface (2) of this width, that is, the lateral length l, in the direction of the arrow Y. When setting the zooming position, first photoelectrically convert the surface of the guide plate (2) before transporting the original (1).
The width of the painted portion α2 in the electrical signal is measured, and the moving direction and amount of movement of the zooming mechanism are controlled based on the measurement results.

まず、電気信号における塗装部αりの長さの計測法の一
例について説明する。第4図(a)は−次元固体撮像素
子(6)の出力信号波形を示し、n 、n+1゜n+2
は各走査の番号を示す。この−次元固体撮像素子(6)
の受光部は多数個のフォトダイオードを等間隔で一列に
配列した構成になっており、各走査に対する出力信号波
形は第5図に示すように多数個(本装置では2048個
)の画素信号が時系列に並んだものとなっている。この
ような構成の走査信号&を同図(3)の■で示す閾値で
2値化すると、同図(b)に示すような二値信号すが得
られる。
First, an example of a method for measuring the length of the painted part α using an electric signal will be described. FIG. 4(a) shows the output signal waveform of the -dimensional solid-state image sensor (6), n, n+1°n+2
indicates the number of each scan. This -dimensional solid-state image sensor (6)
The light-receiving unit has a configuration in which a large number of photodiodes are arranged in a line at equal intervals, and the output signal waveform for each scan consists of a large number of pixel signals (2048 in this device) as shown in Figure 5. They are arranged in chronological order. When the scanning signal & having such a configuration is binarized using the threshold value indicated by ■ in (3) of the same figure, a binary signal as shown in (b) of the same figure is obtained.

このとき、前述の塗装部α2に相当する部分は信号レベ
ルが小さいため、上記二値化処理によって分離でき、同
図(b)のLレベルの部分が塗装部@に相当する。次に
このLレベルの部分の幅を画素数によって計測する。具
体的にはカウンタを用い、Lレベルの期間を画素周波数
に相当するクロックでカウントし、カウント終了後のカ
ウント出力によってLレベル部分の長さを求める。
At this time, since the signal level of the portion corresponding to the painted portion α2 is low, it can be separated by the binarization processing, and the portion at L level in FIG. 2(b) corresponds to the painted portion @. Next, the width of this L level portion is measured by the number of pixels. Specifically, a counter is used to count the L level period using a clock corresponding to the pixel frequency, and the length of the L level portion is determined by the count output after the count ends.

このカウンタ出力にもとづいてズーミング位置を制御す
るのであるが、このような制御回路の一例を第6図に示
す。図において、03はLレベルをカウントするカウン
タ、Iは基準値となるべきカウント数を記憶しているR
OM、αSはカウンタα3の出力と基準のカウント数と
を比較する比較回路、αGはこの比較回路a9の出力に
応じてズーム駆動機構であるパルスモータαηを駆動制
御するモータ制御回路であり、(至)は固体撮像素子(
6)の出力信号における上記基準マーク@の結像の長さ
が原稿のサイズに応じて設定された基準値と一致するよ
うパルスモータαりを駆動する制御回路である。
The zooming position is controlled based on this counter output, and an example of such a control circuit is shown in FIG. In the figure, 03 is a counter that counts the L level, and I is R that stores the count number that should be the reference value.
OM and αS are comparison circuits that compare the output of the counter α3 and a reference count number, and αG is a motor control circuit that drives and controls the pulse motor αη, which is a zoom drive mechanism, in accordance with the output of the comparison circuit a9. ) is a solid-state image sensor (
This control circuit drives the pulse motor α so that the length of the image of the reference mark @ in the output signal of 6) matches the reference value set according to the size of the document.

ROM [141に記憶しておくカウント数は第3図の
塗装部0りの長さlによって一義的に決まる。今、lの
大きさを200鱈とすると、有効読取り幅をXとしたと
きの基準カウント数N (X)は(1)式により求まる
。但し、−次元固体撮像素子(6)の画素数は2048
とする。
The count stored in the ROM [141] is uniquely determined by the length l of the painted section 0 in FIG. Now, assuming that the size of l is 200 cods, the standard count number N (X) when the effective reading width is X is determined by equation (1). However, the number of pixels of the -dimensional solid-state image sensor (6) is 2048.
shall be.

この(1)式により、例えばA3(幅297 m )、
B4(幅256 sm )、A4(幅210 mm )
 ニ対する基準カウント数はそれぞれ1379,160
0゜1950となる。これらの基準カウント数をそれぞ
れROM (14の所定の番地に記憶して詔き、切り換
えスイッチ(9)で指定した番地の原稿のサイズに応じ
た基準カウント数をズーミング位置設定時にROM Q
41から出力する。比較回路αSではカウンタ03の出
力カウント数と基準のカウント数N (X)とを比較し
、カウント数の差を出力する。第4図(blのNn、N
n+1.Nn+2は各走査におけるカウンタ03の出力
カウント数を示す。モータ制御回路αGは比較回路α9
の出力に応じてパルスモータαηの回転方向及び回転量
を決定し、ズーミング機構を制御する。即ち、カウンタ
o3のカウント数Nが基準カウント数N (X)より小
さい場合は、有効読取り幅は設定すべき読取り幅Xより
大きいので、有効読取り幅が小さくなる方向にカウント
数の差に応じた蓋だけパルスモータ面を回転させ、逆に
カウンタα急のカウント数Nが基準カウント数N (X
)より大きい場合は有効読取り幅が大きくなる方向にカ
ウント数の差に応じた量だけパルスモータaηを回転さ
せる。これを各走査ごとに繰り返してカウント数へと基
準カウント数N(X)とが一致するところにズーミング
位置を設定する。
According to this formula (1), for example, A3 (width 297 m),
B4 (width 256 sm), A4 (width 210 mm)
The standard count numbers for the two are 1379 and 160, respectively.
It becomes 0°1950. Each of these reference count numbers is stored in a predetermined address in the ROM (14), and the reference count number corresponding to the size of the document at the address specified by the changeover switch (9) is stored in the ROM Q when the zooming position is set.
Output from 41. The comparison circuit αS compares the output count number of the counter 03 and the reference count number N (X), and outputs the difference between the count numbers. Figure 4 (Nn of bl, N
n+1. Nn+2 indicates the output count number of the counter 03 in each scan. Motor control circuit αG is comparison circuit α9
The rotation direction and amount of rotation of the pulse motor αη are determined according to the output of the pulse motor αη, and the zooming mechanism is controlled. In other words, if the count number N of counter o3 is smaller than the reference count number N (X), the effective reading width is larger than the reading width Only the lid rotates the pulse motor surface, and conversely, the counter α sudden count number N becomes the standard count number N (X
), the pulse motor aη is rotated by an amount corresponding to the difference in count numbers in the direction in which the effective reading width becomes larger. This is repeated for each scan to set the zooming position where the count number matches the reference count number N(X).

以上のように本実施例では、−次元固体撮像素子(6)
上に結像した基準マークの像の大きさを計測しこの大き
さに応じてズームレンズの倍率を設定するため、倍率設
定が非常に正確であり、経年変化も原理的に存在しない
。また倍率設定の精度は一次元固体撮像素子(6)の画
素数と塗装面α2の長さlに依存し、基準カウント数の
逆数であらゎすことができる。例えば上記実施例の場合
、A3判、B4判、A4判に対する設定精度はそれぞれ
0.07%、0.06%、0.05%となり、かなり良
い精度を実現できる。
As described above, in this embodiment, the -dimensional solid-state image sensor (6)
Since the size of the image of the reference mark formed on the image is measured and the magnification of the zoom lens is set according to this size, the magnification setting is extremely accurate and, in principle, does not change over time. Further, the accuracy of magnification setting depends on the number of pixels of the one-dimensional solid-state image sensor (6) and the length l of the painted surface α2, and can be expressed as the reciprocal of the reference count number. For example, in the case of the above embodiment, the setting accuracy for A3 size, B4 size, and A4 size is 0.07%, 0.06%, and 0.05%, respectively, and quite good accuracy can be achieved.

以上では一次元固体撮像素子(6)の走査方向である主
走査方向の倍率設定について説明したが、主走査方向の
倍率を変えたときには原稿送り速度も同時に制御しない
と縦横比の歪んだ画像が得られる。この原稿送り速度の
制御は第6図のモータ制御回路α秒で行う。このとき原
稿搬送モータαSの駆動速度の情報は主走査方向の倍率
制御の場合と同様にROM Q41に記憶しておけばよ
い。
The above describes the magnification settings in the main scanning direction, which is the scanning direction of the one-dimensional solid-state image sensor (6), but when changing the magnification in the main scanning direction, unless the document feed speed is also controlled at the same time, images with distorted aspect ratios may occur. can get. Control of this document feeding speed is performed by the motor control circuit α seconds shown in FIG. At this time, information on the driving speed of the document transport motor αS may be stored in the ROM Q41 in the same manner as in the case of magnification control in the main scanning direction.

なお上記実施例では設定すべき倍率に対応する複数個の
基準カウント数をROMαのに記憶しておく例を示した
が、任意の読取り幅を読取り装置に設けたテン・キー等
に入力し、(1)式にもとづいて基準カウント数を算出
し、比較回路に供給するようにしてもよい。このとき同
時に原稿送り速度も計算し、原稿搬送モータα嚇の速度
も制御する。これにより任意の倍率の設定が容易に実現
でき、縦横比の歪のない画像が得られる。また上記の演
算は比較的簡単なものであるから、制御回路は複数個の
論理IC又はCPU等を用いて容易に実現できる。
In the above embodiment, an example was shown in which a plurality of reference counts corresponding to the magnification to be set are stored in the ROMα, but it is also possible to input an arbitrary reading width into the numeric keypad etc. provided on the reading device. The reference count number may be calculated based on equation (1) and supplied to the comparison circuit. At this time, the document feed speed is also calculated, and the speed of the document feed motor α is also controlled. This makes it easy to set any magnification, and provides an image with no distortion in aspect ratio. Further, since the above calculation is relatively simple, the control circuit can be easily realized using a plurality of logic ICs or CPUs.

またこの発明に使用する基準マークは第3図の塗装部0
りのようなものに限らず、例えば塗装部(12の両端位
置に縦線を記しておき、縦線の間隔を測定するものであ
ってもよい。
The reference mark used in this invention is painted part 0 in Fig. 3.
For example, vertical lines may be drawn at both end positions of the painted portion (12) and the distance between the vertical lines may be measured.

さらにこの発明の原稿読取り装置の構造はiJ7図のよ
うに原稿(1)を固定し光電変換ユニット■を矢印X方
向に移動させて読取るような原稿静止型のものであって
もよく、また138図のように原稿(1)を透明移動台
(社)にのせて搬送するような構造のものでもよく、い
ずれの場合にも基準マーク叫を原稿をのせる台の一部に
記すことにより上記実施例と同様の効果を奏する。
Further, the structure of the document reading device of the present invention may be a stationary document type in which the document (1) is fixed and the photoelectric conversion unit (■) is moved in the direction of the arrow X as shown in FIG. As shown in the figure, the structure may be such that the original (1) is placed on a transparent moving table (company) and transported.In either case, by marking a reference mark on a part of the table on which the original is placed, The same effects as in the embodiment are achieved.

以上のように、この発明によれば原稿読取り位置に近接
する基準面に基準マークを記し、固体撮像素子の出力信
号における上記マークの長さを計測してこれが基準値と
一致するようにズームレンズを駆動するようにしたので
、基準値を変えることにより任意の倍率に精度よく設定
でき、経年変化もなく、また従来のサーボ機構を用いた
ズーミ(1座り為、b−・、り36 ング機構の場合のような複雑な調整も必要としな
As described above, according to the present invention, a reference mark is written on a reference surface near the document reading position, the length of the mark in the output signal of the solid-state image sensor is measured, and the zoom lens is adjusted so that the length of the mark matches the reference value. By driving the servo mechanism, you can accurately set any magnification by changing the reference value, and there is no aging effect. There is no need for complicated adjustments as in the case of

【図面の簡単な説明】[Brief explanation of the drawing]

第1図は従来の原稿読取り装置の概略構成図、第2図は
従来の原稿読み取り装置のサーボ回路を示す図、第3図
は本発明で用いる基準マークを示す図、第4図および第
5図は本発明の一実施例による原稿読み取り装置の一次
元固体撮像素子の出力信号波形を示す図、第6図は本発
明におけるズーミング機構の制御回路を示す図、1g7
図および第8図は本発明の他の実施例による原稿読取り
装置の構成を示す図である。 +21 +3トガイド板、(5)・・・ズームレンズ、
(6)・・・−次元固体撮像素子、(9)・・・切り換
えスイッチ、O2・・・基準マーク、(13・・・カウ
ンタ、αl・・・ROM、(151・・・比較回路、α
e・・・モータ制御回路、■・・・制御回路、0η・・
・パルスモータ(ズーム駆動ms )。 なお図中同一符号は同−又は相当部分を示す。 11 代理人  葛野信− 第1図      第3図 第4図 第5図 第6図
FIG. 1 is a schematic configuration diagram of a conventional document reading device, FIG. 2 is a diagram showing a servo circuit of the conventional document reading device, FIG. 3 is a diagram showing reference marks used in the present invention, and FIGS. 1g7 is a diagram showing the output signal waveform of a one-dimensional solid-state image sensor of a document reading device according to an embodiment of the present invention, and FIG. 6 is a diagram showing a control circuit of a zooming mechanism in the present invention.
8 and 8 are diagrams showing the configuration of a document reading device according to another embodiment of the present invention. +21 +3 guide plate, (5)...zoom lens,
(6)...-dimensional solid-state image sensor, (9)...changeover switch, O2...reference mark, (13...counter, αl...ROM, (151...comparison circuit, α
e...Motor control circuit, ■...Control circuit, 0η...
- Pulse motor (zoom drive ms). Note that the same reference numerals in the figures indicate the same or equivalent parts. 11 Agent Makoto Kazuno - Figure 1 Figure 3 Figure 4 Figure 5 Figure 6

Claims (1)

【特許請求の範囲】[Claims] (1)  ズームレンズと、このズームレンズの倍率を
変化させるズーム駆動機構と、読み取り位置に近接して
配置され基準マークが記された基準面と、上記ズームレ
ンズにより結像した原稿面の情報を光電変換する固体撮
像素子と、倍率に応じた基準値を選択するための選択ス
イッチと、この選択スイッチで選択された基準値と上記
固体撮像素子の出力信号における上記基準マークの結像
の長さとが一致するよう上記ズーム駆動機構を駆動する
制御回路とを備えたことを特徴とする原稿読み取り装置
(1) A zoom lens, a zoom drive mechanism that changes the magnification of the zoom lens, a reference surface placed close to the reading position and marked with a reference mark, and information on the document surface imaged by the zoom lens. A solid-state image sensor that performs photoelectric conversion, a selection switch for selecting a reference value according to the magnification, the reference value selected by this selection switch, and the length of the image of the reference mark in the output signal of the solid-state image sensor. and a control circuit that drives the zoom drive mechanism so that the zoom drive mechanisms match.
JP57052411A 1982-03-29 1982-03-29 Original reader Granted JPS58168380A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP57052411A JPS58168380A (en) 1982-03-29 1982-03-29 Original reader

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP57052411A JPS58168380A (en) 1982-03-29 1982-03-29 Original reader

Publications (2)

Publication Number Publication Date
JPS58168380A true JPS58168380A (en) 1983-10-04
JPS6336187B2 JPS6336187B2 (en) 1988-07-19

Family

ID=12914038

Family Applications (1)

Application Number Title Priority Date Filing Date
JP57052411A Granted JPS58168380A (en) 1982-03-29 1982-03-29 Original reader

Country Status (1)

Country Link
JP (1) JPS58168380A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS622225A (en) * 1985-06-27 1987-01-08 Minolta Camera Co Ltd Magnification adjusting and focusing system
JPS6340111A (en) * 1986-08-05 1988-02-20 Sony Corp Auto zoom device for camera
JPH02226484A (en) * 1989-02-28 1990-09-10 Juki Corp Zoom lens controller

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS622225A (en) * 1985-06-27 1987-01-08 Minolta Camera Co Ltd Magnification adjusting and focusing system
JPS6340111A (en) * 1986-08-05 1988-02-20 Sony Corp Auto zoom device for camera
JPH02226484A (en) * 1989-02-28 1990-09-10 Juki Corp Zoom lens controller

Also Published As

Publication number Publication date
JPS6336187B2 (en) 1988-07-19

Similar Documents

Publication Publication Date Title
EP0261966B1 (en) Raster input scanner
DE3014979C2 (en)
US4837636A (en) Motion sensor for sensing the relative position and velocity of a recording member
US7995253B2 (en) Image reading device and control method thereof
US4348697A (en) Facsimile apparatus
JPS63156474A (en) Reader
JPS58168380A (en) Original reader
US5105286A (en) Image reading apparatus
US4009467A (en) Character reader
US5018025A (en) Input of control information to an electronic image scanner through the imaging apparatus
JP3932014B2 (en) Image reading device
JPH0460386B2 (en)
US4472057A (en) Area meter
JPH06303394A (en) Picture reader
JPS5617572A (en) Original reading device
JPS62110361A (en) Image processing device
JPH06105940B2 (en) Image reader
WO1995025293A1 (en) Device and method for microfilm imaging
JP2998971B2 (en) Image reading device
JP2009267499A (en) Image reader
JPS62262850A (en) Detection processing method for image information
JPS61161068A (en) Digital image reader
JPS60203070A (en) Picture reader
JPH0323771A (en) Running body driver
JPS59143138A (en) Microfilm detector