JPS5921169A - Original reader - Google Patents

Original reader

Info

Publication number
JPS5921169A
JPS5921169A JP57130231A JP13023182A JPS5921169A JP S5921169 A JPS5921169 A JP S5921169A JP 57130231 A JP57130231 A JP 57130231A JP 13023182 A JP13023182 A JP 13023182A JP S5921169 A JPS5921169 A JP S5921169A
Authority
JP
Japan
Prior art keywords
image sensor
linear image
type linear
photoelectric conversion
sensors
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
Application number
JP57130231A
Other languages
Japanese (ja)
Inventor
Keisuke Maemura
敬介 前村
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co Ltd
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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP57130231A priority Critical patent/JPS5921169A/en
Publication of JPS5921169A publication Critical patent/JPS5921169A/en
Pending legal-status Critical Current

Links

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
    • H04N1/024—Details of scanning heads ; Means for illuminating the original
    • H04N1/028—Details of scanning heads ; Means for illuminating the original for picture information pick-up
    • H04N1/03—Details of scanning heads ; Means for illuminating the original for picture information pick-up with photodetectors arranged in a substantially linear array
    • H04N1/031—Details of scanning heads ; Means for illuminating the original for picture information pick-up with photodetectors arranged in a substantially linear array the photodetectors having a one-to-one and optically positive correspondence with the scanned picture elements, e.g. linear contact sensors

Abstract

PURPOSE:To facilitate an easy control of an image sensor and to miniaturize an original reader, by using a hybrid substrate containing an array of plural photoelectric transducers and two adhesion type linear image sensors in which a spacer and a rod lens are unified respectively. CONSTITUTION:The light irradiated from a fluorescent lamp 42 is reflected on an original 41, and the beams passed through rod lenses 43a and 43b are made incident to the sensor parts of adhesion type linear image sensors 49a and 49b. Spacers 44a and 44b are set between lenses 43a and 43b and CCD hybrid substrates 45a and 45b respectively, and the beams are formed into images on the sensors 49a and 49b. Then the lens 43a, spacer 44a, substrate 45a as well as the lens 43b, spacer 44b and substrate 45b are unified together respectively. The sensors on the sensors 49a and 49b are arrayed zigzag, and the distances between these sensors and a back plate 48 are controlled by means of control screws 47a, 47b, 46a, 46b, etc. Thus an original reader is miniaturized.

Description

【発明の詳細な説明】 〔発明の技術分野〕 本発明は、ファクシミリ等において用いられる原稿読み
取り装置Ｖζ関する。DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a document reading device Vζ used in facsimiles and the like.

〔・発明の技術的・背景とその問題点〕従来から、ファ
クシミリ等で用いられる原・稿読み取り装置として、Ｃ
ＣＤリニア・イメージ・センサ及び球面レンズ系が、多
く用いられている。、シかるに、近・年装置の小型化、
メインテナンス・フリー化がユーザー側から□切望され
ているにも・拘・らず、球面レンズ系を用いるため対処
策が見出され４！、、。[・Technical background of the invention and its problems] C
CD linear image sensors and spherical lens systems are often used. ,Shikaruni,In recent years, the miniaturization of equipment,
□Despite the user's desire for maintenance-free operation, a workaround was found to use a spherical lens system.4! ,,.

ままである、７　　　′ 例えばＡｊｆイズ幅（２１６朋）の原稿を婢む←潰□し
ては、球面レンズでの光学系の距離は約３０ｃｗＬを要
し、装置の大′きさけ必然的に決定される。また原稿、
レンズ、　ＣＣＤリニア・イメージ・センサの王者の光
軸を一致させるには熟練した技術を要し、これがメ・イ
ン・テナンスを複雑なものにしていた。For example, if a document with a width of 7' Ajf (216 mm) is destroyed, the distance of the optical system with a spherical lens will be approximately 30 cwL, which will inevitably cause a large disturbance in the apparatus. It is determined. Also, the manuscript
Matching the optical axes of the lens and CCD linear image sensor required a highly skilled technique, which made main maintenance complicated.

近年、これらの欠点を補うものとして密着型リニア・イ
メージ・センサの概念が提案されでいる。In recent years, the concept of a contact linear image sensor has been proposed to compensate for these drawbacks.

これは、レンズ系にロット−・レンズを用いることによ
り原稿と同寸に一対二結像をさせ、かつセ・す部に原稿
と同寸幅の光電変換素子のアレイを設け、画情報を得る
ものである。ロッ、ド・レンズの焦点距離が約１．５１
１ｙｉと短いため装置の小型化がはかれるわけである。This uses a lot lens in the lens system to form a one-to-two image with the same size as the original, and an array of photoelectric conversion elements with the same width as the original is installed in the center section to obtain image information. It is something. The focal length of the lens is approximately 1.51.
Since the length is as short as 1yi, the device can be made smaller.

密着型リニア・・イメージ・センナの光電変換素子とし
ては、ガラス等の基板上に原稿と同寸幅のＣｄＳｅもし
くはＣｄＳ等の光導電性薄膜を設けたものが開発されて
いるが応答性という点で問題がらり、これに対して、高
速機の密着型リニア・イメージ・□セレサ□としては、
　ＣＣＤ等の電荷蓄積型の固体素子が、適用可能であ、
、今、、が、、入手可能なもののサイズが□限られてお
シ例えばＣＣＤリニア・・イメージ・センサ□は最大の
ものでもセンナ部の長さが約３０朋でおる。したがって
、原稿と同寸幅の像を読み取るには、複数個のＣＣＤＩ
Ｊニア・イメージ・センサを必要とする。As a photoelectric conversion element for a contact type linear image sensor, one has been developed in which a photoconductive thin film such as CdSe or CdS with the same width as the original is provided on a substrate such as glass, but the responsiveness is insufficient. On the other hand, as a high-speed machine's close-contact linear image □Celesa□,
A charge storage type solid-state device such as a CCD is applicable,
Currently, however, the size of available sensors is limited. For example, the largest CCD linear image sensor has a length of about 30 mm. Therefore, in order to read an image with the same width as the original, multiple CCDI
Requires J near image sensor.

第１図は一本の走査線をａ　−ｄの数ブロックに分割し
たもの、第２図は複数個のＣＣＤＩＪニア・イメージ・
セイサの配置を示し、、（２，ＩＡ）〜（２１Ｄ）はＣ
ＣＤリニア・イメージ・センサ、第１図のブロック８が
ＣＣＤＩＪニア・イメージ・センサ（２１Ａ）へ、同様
にブロックｂが（２１Ｂ）へ、ブロックＣが（２１Ｃ）
へ、ブロックｄが（２１Ｄ）へ投影される。第３図は光
学系の一例を示し、（３１）は原稿、ＣＣＤリニア・イ
メージ・センサ（’２１Ａ）、　（２１Ｃ）上にはロッ
ドレンズ（３２Ａ）により原稿面の像が結像し、同様に
ＣＣＤリニア・イメージ・センサ（２１Ｂ）、　（２１
Ｄ）上にはロッドレンズ（３２Ｂ）により結像する。Figure 1 shows one scanning line divided into several blocks a - d, and Figure 2 shows multiple CCDIJ near image blocks.
The arrangement of seisa is shown, (2, IA) to (21D) are C
CD linear image sensor, block 8 in Figure 1 goes to CCDIJ near image sensor (21A), similarly block b goes to (21B), block C goes to (21C)
, block d is projected onto (21D). Figure 3 shows an example of the optical system, where (31) is a document, a CCD linear image sensor (21A), and (21C) an image of the document surface is formed by a rod lens (32A). CCD linear image sensor (21B), (21
D) An image is formed on the image by a rod lens (32B).

複数個のＣＣＤＩＪニア・イメージ−センサ等の光電変
換素子を用いた密着型リニア・イメージ・七ン丈の場合
、光電変換素子の配置は第２図のように千鳥状に配置す
ることに・よυ１ラインを莞全に読み取ることが可能に
なる。しかし、第３図のように２つの光学系を必要とし
、単に光電変換素子上へ原稿の像を結像させるだけでな
く、２つの光学系による像が原稿面で一直線にならなけ
ればならず、その調整は非常に困難なものとがる。In the case of a close-contact linear image sensor using multiple photoelectric conversion elements such as CCDIJ near image sensors, the photoelectric conversion elements should be arranged in a staggered manner as shown in Figure 2. It becomes possible to read the υ1 line completely. However, as shown in Figure 3, two optical systems are required, and in addition to simply forming an image of the original onto the photoelectric conversion element, the images formed by the two optical systems must be aligned in a straight line on the surface of the original. , the adjustment is extremely difficult.

〔発明の目的〕　　　　　　□ 本発明の目的は、かかる問題を解消し、２つの光学系よ
り構成される密着型リニア・イグージ・センサの光学系
の調整を容易にし、低価格で小型。[Object of the Invention] □ The object of the present invention is to solve this problem, to facilitate the adjustment of the optical system of a contact type linear Igugi sensor consisting of two optical systems, and to make it small and inexpensive.

高速動作が可能な原稿読み□取り装置を提供することに
ある１゜ 〔発明の概要〕 本発明は、千鳥状に配列すぺぐ複数個の光電変換素子よ
り構成される読み取りセンナ・において・−光電変換素
子の有効センサ長未満の間隔で毛ンサ部が一直線上にな
るように複数個の光電変換素子を並べたハイブリッド基
板とスペーサとロッドレンズとを一体化した密着型リニ
ア・イメージ・センサを２個用い、２個の密着型リニア
・イ〉−ジ・センサの光電変換素子が千鳥状となるべく
密着型リニア・イメージ・センサを配置し、一方の密着
型り、、エア・イメージ・センサは結像めだめの調、整
機構を有し、他′方の密着型リニ”ア・イメージ・セン
サは結像のだめの調整機構と、一方の密着型リーアイメ
・□−ジ・センダ゛と原稿面の同一直線上の像を結像さ
せるために密着型リニア・イメージ・センサ同志の相対
的位置を調整する機構を有し、これらの調整機構を調整
することによって、千鳥状に配列された複数個の光゛ｉ
変′換素子上に原稿面の一直線上の像を投影するように
したものであく）。　　　　　□〔発明・、の効果、〕 本発明によれば、従来のＣ０ＤＩＪニア・イメージセン
サ及び球面レンズ糸を用いた構造では不１」ｆ　ｆｊ’
１　　　　□、１あり、、、つｆ１％”ｆ＆、、、＊　
９−０７４、：！ｍ（ｔｓ’ｉ、２１，３、Ｉ・更に光
導電性薄膜を用いた密着型リニア・イメージ・センサで
は到達しえない高群イ竺度、高速動作の読み取りが実現
できる。まり１．ロッドレンズとスペーサとＣＣＤハイ
ブリッド−板とを一体化することによυ小型化され、か
っ結像めため□の調整も容易となって生産工程を簡単化
し、□密着型リニア・イメージ・センサの取り扱いを容
易にすることができる。1. An object of the present invention is to provide a document reading device capable of high-speed operation. 2. A contact type linear image sensor that integrates a hybrid substrate in which a plurality of photoelectric conversion elements are lined up in a straight line at intervals less than the effective sensor length of the conversion elements, a spacer, and a rod lens. The close-contact linear image sensors are arranged so that the photoelectric conversion elements of the two close-contact linear image sensors are staggered, and one of the close-contact linear image sensors is arranged in a staggered manner. The other contact-type linear image sensor has an adjustment mechanism for the image holder, and the other contact-type linear image sensor has an adjustment mechanism for the image-forming holder, and one contact-type linear image sensor has an adjustment mechanism for adjusting the image holder and the document surface. It has a mechanism that adjusts the relative position of contact type linear image sensors to form images on the same straight line, and by adjusting these adjustment mechanisms, multiple sensors arranged in a staggered manner can be light i
(It is designed to project an image of the document surface in a straight line onto the conversion element.) □ [Effects of the Invention] According to the present invention, the structure using the conventional C0DIJ near image sensor and spherical lens thread can be improved.
1 □, 1 exists..., tsuf1%"f&...*
9-074, :! m(ts'i, 21, 3, I・Furthermore, it is possible to achieve high group sharpness and high-speed reading that cannot be achieved with contact type linear image sensors using photoconductive thin films.Mari 1. Rod By integrating the lens, spacer, and CCD hybrid plate, the size of the υ is reduced, and because of the bracketed image formation, the adjustment of the □ becomes easier, simplifying the production process, and the handling of the close-contact linear image sensor. can be facilitated.

〔発明の実施例〕[Embodiments of the invention]

第４図に本発明の一実施例の概略図を示す。この第４図
において螢光灯（４２）からの照射光は原稿（４１）　
Ｋ−？：反射し、ロッドレンズ（４３ａ）　及び（４３
ｂ）　　′を通じてＣＣＤハイブリッド基板（４５ａ）
及び（４５ｂ）　ｉ上に配列されたＣＣＤリニア・イメ
ージ・センサのセンサ部に入射する。ロッド・レンズ（
４３ａ）　及ヒ（４３ｂ）を通過した光をＣＣＤリニア
・イメージ・センサ上にて結像させるために、ロッド・
レンズ（４：（ａ）及び（４３ｂ）とＣＣＤハイブリッ
ド基板（４５ａ）及び（４５ｂ）との閾にそれぞれスペ
ーサ（４４ａ）及び（４４ｂ）を設けである。ロッド・
レンズ（４３ａ）　トスペーサ（４４ａ）とＣＣＤハイ
ブリッド基板（４！５ａ　）とを一体化して密着型リニ
ア・イメージ・センサ（４９ａ）全形成する。同様にし
てスペーサ（４４，ｂ）と（４５ｂ）と（４６ｂ　）ト
ラ一体化して密着型リニア・イメージ・センサ（４９ｂ
）を形成し′Ｃおり、さらに密着型リニア・イメージ・
センサ（４９ａ　）と（４９ｂ）ノＣＣ１）イメージ・
センサが千鳥状になるように（４９ａ）と（４９ｂ）は
配置されている。FIG. 4 shows a schematic diagram of an embodiment of the present invention. In this Figure 4, the irradiation light from the fluorescent lamp (42) is directed towards the original (41).
K-? :Reflection, rod lens (43a) and (43
b) CCD hybrid board (45a) through '
and (45b) enters the sensor section of the CCD linear image sensor arranged on i. Rod lens (
43a) In order to image the light that passed through (43b) on the CCD linear image sensor, a rod
Spacers (44a) and (44b) are provided at the thresholds of the lenses (4: (a) and (43b) and the CCD hybrid substrates (45a) and (45b), respectively.
A lens (43a), a spacer (44a) and a CCD hybrid substrate (4!5a) are integrated to form a contact type linear image sensor (49a). Similarly, spacers (44,b), (45b), and (46b) are integrated to form a contact type linear image sensor (49b).
) is formed, and a close-contact linear image is formed.
Sensor (49a) and (49b) CC1) Image
(49a) and (49b) are arranged so that the sensors are staggered.

密着型リニア・イメージ・センサ（４９ａ）及ヒ（４９
ｂ）と原稿面との距離の調整は原稿面から一定の距離だ
け離れている背面板（４８）との距離ｔそれぞれ調整ね
じ（４７ａ）及び（４，７ｂ）で判贅することによって
行なわれる。さらに密着型リニア・イメージ・センサ（
４９ａ）及び（４９ｂ）の原稿の投影像が原稿面上で一
直線になるように、（４９ａ）と（４９ｂ）の相対的位
置を調整ねじ（４６ａ）及び（４６ｂ）を使って調整す
る１、調整ねじ（４６ａ）、　（４６ｂ）、　（４７ａ
）、　（４７ｂ）は密着型リニア・イメージ・センサの
長手方向に数ケ所設けられており、オシロスコープ等で
密着ｔｊｉｌ　’）　＝“ｒ・イメージ・センサの出力
を見ながら調整することができ、容易に密着型リニア・
イメージ・センサの位置合わせを行なうことができる。Close-contact linear image sensor (49a) and h (49
The distance between b) and the document surface is adjusted by adjusting the distance t between the back plate (48), which is a certain distance from the document surface, using adjustment screws (47a) and (4, 7b), respectively. . In addition, a close-contact linear image sensor (
1. adjusting the relative positions of (49a) and (49b) using adjustment screws (46a) and (46b) so that the projected images of the original in 49a) and (49b) are aligned in a straight line on the original surface; Adjustment screws (46a), (46b), (47a
), (47b) are provided at several places in the longitudinal direction of the close-contact linear image sensor, and can be easily adjusted while observing the output of the close-contact linear image sensor with an oscilloscope, etc. Close contact type linear・
Image sensor alignment can be performed.

以上説明したように、本発明の原稿読み取り装、置では
、千鳥状に配列すべき複数個のＣＣＤイメージ・セｙ　
ｙ　ヲー直線上にＣＣＤイメージ・センサを並べた２枚
のＣＣＤハイブリッド基板により構成し、各々のＣＣＤ
ハイブリッド基板をそれぞれスペーサとロッド・レンズ
とともに一体化して２個の密着型イメージ・センサを形
成することにより、小型で高速動作が可能で調整が容易
な原稿読み取り装置が実現できた。As explained above, in the document reading device and apparatus of the present invention, a plurality of CCD image sensors to be arranged in a staggered manner are used.
y - Consists of two CCD hybrid boards with CCD image sensors arranged in a straight line, each CCD
By integrating each hybrid substrate with a spacer and a rod lens to form two contact image sensors, a compact, high-speed operation, and easy-to-adjust document reading device was realized.

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

第１図は原稿面上の走査線分割状況を示す図、第２図は
ＣＣＤイメージ・センサの配置状況を示す図、第３図は
複数個のＣＣＤイメージ・センサを用いたときの光学系
の一例を示す図、第４図は本発明の実施例を示す図であ
る１゜ ２１Ａ、　２１Ｂ、　２１Ｃ，２１Ｄ・・・Ｃ’ＣＤイ
メージ・センサ、３１・・・Ｎ　ｍ、　　　　　　　　
３２Ａ、３２Ｂ・・・ロッドレンズ、４１・・・原稿、
　　　　　　４２・・・・螢光灯、４３ａ、４３ｂ　・
・・ロッド・レンズ、４４ａ、　４４ｂ−−−スペーサ
、 ４５ａ、　４５ｂ・・・ＣＣＤノ・イブリッド基板、４
６ａ、　４６ｂ、　４７ａ、　４７ｂ　＝−・調整ねじ
、４８・・・・・背面板、 ４９ａ、　４９ｋ＞・・・密着型リニア・・イメージ・
センサ。 代理人　弁理士　　則　近　憲　佑 （ほか１名）Figure 1 shows how scanning lines are divided on the document surface, Figure 2 shows how the CCD image sensors are arranged, and Figure 3 shows the optical system when using multiple CCD image sensors. FIG. 4 is a diagram showing an example of the present invention.1゜21A, 21B, 21C, 21D...C'CD image sensor, 31...N m,
32A, 32B...rod lens, 41...manuscript,
42...Fluorescent lamp, 43a, 43b ・
...Rod lens, 44a, 44b---Spacer, 45a, 45b...CCD hybrid board, 4
6a, 46b, 47a, 47b =-adjustment screw, 48...rear plate, 49a, 49k＞...adhesive linear image
sensor. Agent: Patent attorney Kensuke Chika (and 1 other person)

Claims (1)

【特許請求の範囲】[Claims] 複数個の光電変換素子上に原稿面の像を結像させ、前記
複数個の光電変換素子を走査して１ラインの画情報を取
シ出す原稿読み取シ装置において、各光電変換素子間の
間隔が光電変換素子の有効ｔンサ長未満となるべく光電
変換素子の長尺力・向にセンサ部が一直線上にのる配列
に複数個の光電変換素子を並べたハイブリッド基板と、
前記ハイブリッド基板の光電変換素子上に原稿面の像を
結像させるロンドレンズと、ロッドンンズ及びハイブリ
ッド基板間のスペーサとを一体化した密着型リニア・イ
メージ・センサを２個用い、２個の密着型リニア・イメ
ージ・センサの光電変換素子が千鳥状となるべく密着型
リニア・イメージ・センサを配置し、一方の密着型リニ
ア・イメージ・センサに関しては原稿面の像を光電変換
素子上に結像すべく原稿面から密着型リニア・イメージ
・センサまでの距離を調整す、る機構を有し、他方の密
着型リニア・イメージ・センサに関しては原稿面の像を
光電変換素子上に結像すべく原稿面から密着型リニア・
イメージ・センサまでの距離を調整する機構と、２つの
密着壓リニア・イメージ−センサの光・電変換素子上に
結像する原稿面の像が一直線上に並ぶべく一方の密着型
リニアーイメージ・センサに対する他方の密着型リニア
・イメージ・センサの相対的な位置を調整する機構とを
有することを特徴とする原稿読み取り装置。−：In a document reading device that forms an image of a document surface on a plurality of photoelectric conversion elements and scans the plurality of photoelectric conversion elements to extract one line of image information, the interval between each photoelectric conversion element is a hybrid substrate in which a plurality of photoelectric conversion elements are arranged in an array such that the sensor portion is aligned in the long force direction of the photoelectric conversion element so that t is less than the effective length of the photoelectric conversion element;
Two close-contact type linear image sensors are used, each of which integrates a Rondo lens that forms an image of the document surface onto the photoelectric conversion element of the hybrid substrate, and a spacer between the rod lenses and the hybrid substrate. The contact type linear image sensor is arranged so that the photoelectric conversion elements of the linear image sensor are arranged in a staggered manner, and one contact type linear image sensor is arranged so that the image of the document surface is formed on the photoelectric conversion element. It has a mechanism to adjust the distance from the document surface to the contact type linear image sensor, and the other contact type linear image sensor has a mechanism to adjust the distance from the document surface to the contact type linear image sensor. Close contact type linear・
A mechanism for adjusting the distance to the image sensor, and one contact linear image sensor to align the image of the document surface on the photo-electric conversion element of the two contact linear image sensors. 1. A document reading device comprising: a mechanism for adjusting the relative position of the other contact type linear image sensor to the other contact type linear image sensor. −:
JP57130231A 1982-07-28 1982-07-28 Original reader Pending JPS5921169A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP57130231A JPS5921169A (en) 1982-07-28 1982-07-28 Original reader

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP57130231A JPS5921169A (en) 1982-07-28 1982-07-28 Original reader

Publications (1)

Publication Number Publication Date
JPS5921169A true JPS5921169A (en) 1984-02-03

Family

ID=15029233

Family Applications (1)

Application Number Title Priority Date Filing Date
JP57130231A Pending JPS5921169A (en) 1982-07-28 1982-07-28 Original reader

Country Status (1)

Country Link
JP (1) JPS5921169A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0491463U (en) * 1990-12-25 1992-08-10

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0491463U (en) * 1990-12-25 1992-08-10

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