JPH0222075A - Image forming optical apparatus - Google Patents

Image forming optical apparatus

Info

Publication number
JPH0222075A
JPH0222075A JP17241088A JP17241088A JPH0222075A JP H0222075 A JPH0222075 A JP H0222075A JP 17241088 A JP17241088 A JP 17241088A JP 17241088 A JP17241088 A JP 17241088A JP H0222075 A JPH0222075 A JP H0222075A
Authority
JP
Japan
Prior art keywords
array
character
holder
character pattern
pattern array
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
JP17241088A
Other languages
Japanese (ja)
Inventor
Kenjiro Hamanaka
賢二郎 浜中
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.)
Nippon Sheet Glass Co Ltd
Original Assignee
Nippon Sheet Glass 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 Nippon Sheet Glass Co Ltd filed Critical Nippon Sheet Glass Co Ltd
Priority to JP17241088A priority Critical patent/JPH0222075A/en
Publication of JPH0222075A publication Critical patent/JPH0222075A/en
Pending legal-status Critical Current

Links

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  • Dot-Matrix Printers And Others (AREA)
  • Printers Or Recording Devices Using Electromagnetic And Radiation Means (AREA)

Abstract

PURPOSE:To simply alter a character kind and to perform high-grade printing in a low noise level by providing a transmitting pattern array to the other part of sn image forming optical system in a freely detachable manner. CONSTITUTION:A character pattern array is formed to a disc-shaped substrate and the peripheral edge part thereof is protected by a character pattern array holder 12 and a grasping part 12A is provided to said holder 12 so as to protrude from the upper part thereof. Next, a slit-like opening 11 is provided to the side wall of a main body holder 10 between an LED array 1 and a lens array 3 and the grasping part 12A of the character pattern array holder 12 is allowed to protrude to the outside of the main body holder 10 through said opening 1. This protruding grasping part 12A is grasped to provide the character pattern array 2 in a freely detachable manner. Various font pattern arrays 2 are prepared and replaced with each other if necessary to make it possible to print various character fonts with high grade in a low noise level.

Description

【発明の詳細な説明】 〔産業上の利用分野〕 本発明は結像光学装置に関し、特に空間的に多数個配列
した文字、数字等の原画パターンを切換えて同一の像位
置に結像させるようにした光学装置に関する。
[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to an imaging optical device, and in particular, to an imaging optical device that is capable of switching original image patterns such as letters and numbers arranged in a large number of spaces to form images at the same image position. This invention relates to an optical device.

〔従来の技術〕[Conventional technology]

従来よりプリンタやタイプライタ等の印字装置には、サ
ーマルプリンタやドツトインパクトプリンタ等マトリク
ス状に配列した印字点の集まりとして文字を表わすタイ
プ(ドツトマトリクスタイプと呼ぶ)と、デイジ−ホイ
ールプリンタ等活字として1文字ずつ用意された文字パ
ターンを印字するタイプ(デイジ−ホイールタイプと呼
ぶ)がある。
Traditionally, printing devices such as printers and typewriters have two types: thermal printers and dot impact printers, which represent characters as a collection of printing points arranged in a matrix (called dot matrix type), and daisy-wheel printers, which represent characters as a collection of printing points. There is a type (called a daisy-wheel type) that prints a character pattern prepared for each character.

ドツトマトリクスタイプは、文字を決まったピッチで配
列した点列で表わすため、印字された文字を拡大すると
斜めの線が階段状に見えてしまう等の問題がある。
In the dot matrix type, characters are represented by a series of dots arranged at a fixed pitch, so when the printed characters are enlarged, diagonal lines look like steps.

デイジ−ホイールタイプは、1文字1文字が活字として
用意されているため、ドツトマトリクスタイプにおける
上記問題は生じないが、通常のディジーホイールタイプ
のプリンタは、機械的にインクリボンをたたいて紙に印
字するため、印字時の騒音が問題になる。
Daisy-wheel type printers do not have the above problems with dot matrix type printers because each character is prepared as a printed character, but ordinary daisy-wheel type printers mechanically strike the ink ribbon onto paper. Because it prints, noise during printing becomes a problem.

また近年、レーザープリンタ、LEDプリンタ、液晶プ
リンタ等の開発が行なわれ、レーザーブリンクではスキ
ャンビームの0N10FF間隔を細かくする事により、
またLEDプリンタ、液晶プリンタではLEDアレイ、
液晶シャッタアレイのピッチを細かくする事により、基
本的にはドツトマトリクスタイプでありながら、1文字
に対応するドツトの数を増やし、高精細な文字を印字さ
せるアプローチがある。
In addition, in recent years, laser printers, LED printers, liquid crystal printers, etc. have been developed, and in laser blinking, by narrowing the 0N10FF interval of the scan beam,
In addition, LED printers and LCD printers use LED arrays,
There is an approach to printing high-definition characters by increasing the number of dots that correspond to one character, although it is basically a dot matrix type, by making the pitch of the liquid crystal shutter array finer.

しかしながら、これらのプリンタでは高精度な光学系が
必要であったり、LEDアレイ、液晶シャッタアレイの
作製歩留りが低い等、作製面、価格面で不利な点が多い
However, these printers have many disadvantages in terms of manufacturing and cost, such as the need for a highly accurate optical system and the low manufacturing yield of LED arrays and liquid crystal shutter arrays.

このような従来のプリンタ、クイプライタ等に係わる問
題点を除去するために、レンズアレイと投影レンズを組
め合せた例えば特願昭62−267843のような構成
が考えられる。
In order to eliminate such problems associated with conventional printers, quipwriters, etc., a configuration such as that disclosed in Japanese Patent Application No. 62-267843, in which a lens array and a projection lens are combined, can be considered.

特願昭62−267843には、LEDアレイ、文字パ
ターンアレイ、微小レンズアレイ及び投影レンズを軸線
上に配置し、LEDアレイの中の特定のLEDを点灯す
ることによって、文字パターンアレイの中のこれに対応
した文字を照明し、この像を、微小レンズアレイ中の対
応する微小レンズと、投影レンズとによって感光面上に
結像させるようにした結像光学装置が開示されている。
Japanese Patent Application No. 62-267843 discloses that by arranging an LED array, a character pattern array, a microlens array, and a projection lens on the axis, and lighting up specific LEDs in the LED array, this in the character pattern array is An imaging optical device has been disclosed that illuminates characters corresponding to , and forms this image on a photosensitive surface using a corresponding microlens in a microlens array and a projection lens.

〔発明が解決しようとする問題点〕[Problem that the invention seeks to solve]

上述した結像光学装置を用いることにより、従来のデイ
ジ−ホイールタイプに匹敵する高品位な印字を、低騒音
且つ簡単な構成で実現することができる。
By using the above-described imaging optical device, high-quality printing comparable to that of the conventional daisy-wheel type can be realized with low noise and a simple configuration.

しかしながら、文字パターンアレイとして用意されてい
る文字しか印字できないという問題がある。
However, there is a problem in that only characters prepared as a character pattern array can be printed.

〔問題点を解決するための手段〕[Means for solving problems]

前述した結像光学装置において、文字パターンアレイを
着脱可能とし、文字種や特殊記号等のフォント毎に文字
パターンアレイを交換できるようにした。
In the above-mentioned imaging optical device, the character pattern array is made removable so that the character pattern array can be replaced for each character type, special symbol, or other font.

〔作 用〕[For production]

簡単な操作で字種を変更でき、しかもデイジ−ホイール
タイプあるいはドツトインパクト方式の印字装置に比べ
低騒音で、ドツトマトリクスタイプの印字装置に比べ高
品位な印字を行なうことができる。
The type of character can be changed with a simple operation, and it produces lower noise than a daisy-wheel type or dot impact type printing device, and can print with higher quality than a dot matrix type printing device.

〔実施例〕〔Example〕

以下本発明を図面に示した実施例に基づいて詳細に説明
する。
The present invention will be described in detail below based on embodiments shown in the drawings.

第1図は、本発明に係る結像光学装置の原理を示す斜視
図であり、光源としてのLED  IAを一次元又は二
次元に配列して構成されたLEDアレイ1と、文字、数
字、記号、図形等の透過型文字パターン2人を一次元又
は二次元に配列して構成された透過パターンアレイ2と
、微小レンズ3Aを一次元または二次元に配列して構成
された微小レンズアレイ3とを、各LED  IA、透
過パターン2Ala小レンズ3Aが1対1で対応するよ
うにこれらアレイを同一軸線上に配置し、微小レンズア
レイ3の前方に口径の大きな投影レンズ4を配置する。
FIG. 1 is a perspective view showing the principle of the imaging optical device according to the present invention, and shows an LED array 1 configured by arranging LED IAs as a light source in one or two dimensions, and letters, numbers, and symbols. , a transparent pattern array 2 configured by arranging two transparent character patterns such as figures in one or two dimensions, and a microlens array 3 configured by arranging microlenses 3A in one or two dimensions. These arrays are arranged on the same axis so that each LED IA, transmission pattern 2Ala, and small lens 3A correspond one to one, and a projection lens 4 with a large diameter is arranged in front of the microlens array 3.

投影レンズ4は、各LED IAから射出し各透過パタ
ーン2Aを通過した光束のうち、少なくとも2つ以上の
微小レンズ3Aを通過した光束が同時に入射可能な大き
さの入射瞳を持ったレンズである。
The projection lens 4 is a lens having an entrance pupil large enough to allow light beams that have passed through at least two or more microlenses 3A to simultaneously enter among the light beams that have emitted from each LED IA and passed through each transmission pattern 2A. .

上記装置において、図外のスイッチング制御手段により
、LEDアレイ1中の特定LED  IAを点灯させる
と、このLED IAで照明された特定の文字パターン
2Aの像5Aが、レンズアレイ中の対応する微小レンズ
3Aと投影レンズ4とから成る光学系を介して、結像面
5、例えば印字装置の感光ドラ人面上に結像される。
In the above device, when a specific LED IA in the LED array 1 is turned on by a switching control means (not shown), an image 5A of a specific character pattern 2A illuminated by this LED IA is illuminated by a corresponding microlens in the lens array. 3A and a projection lens 4, the image is formed on an imaging surface 5, for example, a photosensitive drum surface of a printing device.

この結像位置は、文字パターン2Aのアレイ2上におけ
る位置によらず常に一定である。
This imaging position is always constant regardless of the position of the character pattern 2A on the array 2.

上記の結像光学装置における文字パターンアレイ2の着
脱構造の具体例を第2図及び第3図に示す。
A specific example of the structure for attaching and detaching the character pattern array 2 in the above-mentioned imaging optical device is shown in FIGS. 2 and 3.

第2図において、10は本体ホルダであり、円筒状を成
したこのホルダ10内には、第1図に示した各素子のう
ち、LEDアレイ1、微小レンズアレイ3及び投影レン
ズ4を所定の位置関係で固定しである。そしてLEDア
レイ1とレンズアレイ3との間には、ホルダ10の側壁
にスリ・ノド状の開口11が設けてあり、この開口11
を通して文字パターンアレイ2を出し入れできるように
している。すなわち、文字パターンアレイ2を円盤状基
板に形成するとともに、その周縁部を文字パターンアレ
イホルダ12で保護し、且つこのホルダ12の上部に突
出する把持部12Aを設けて、本体ホルダIOの開口1
1を通して上記把持部12Aを本体ホルダ10外に突出
させ、この部分を把持して文字パターンアレイ2を着脱
し得るようにしている。そして種々の字体の文字パター
ンアレイ2を用意し、必要に応じて入れ替える。
In FIG. 2, 10 is a main body holder, and in this cylindrical holder 10, among the elements shown in FIG. It is fixed due to positional relationship. A slot-shaped opening 11 is provided in the side wall of the holder 10 between the LED array 1 and the lens array 3.
The character pattern array 2 can be taken in and out through. That is, the character pattern array 2 is formed on a disc-shaped substrate, its peripheral edge is protected by the character pattern array holder 12, and a gripping part 12A is provided that protrudes from the upper part of this holder 12, and the opening 1 of the main body holder IO is
The gripping portion 12A is made to protrude outside the main body holder 10 through the gripping portion 1, and the character pattern array 2 can be attached and detached by gripping this portion. Then, character pattern arrays 2 of various fonts are prepared and replaced as necessary.

文字パターンアレイホルダ12と本体ホルダ10の挿入
部は、双方共第1図の光学配置が正しく行えるように設
計され、基準出しされており、所定の位置まで文字パタ
ーンアレイホルダ12を挿入固定すれば正しい結像が可
能になっている。
The insertion portions of the character pattern array holder 12 and the main body holder 10 are both designed and referenced so that the optical arrangement shown in FIG. Correct imaging is now possible.

また必要に応じて簡単な調整機構を設けてもよい。Further, a simple adjustment mechanism may be provided as necessary.

〔発明の効果〕〔Effect of the invention〕

簡単な構成で、多くの種類の文字フォントを取替えて印
字する事が出来、しかも従来のデイジ−ホイールタイプ
の印字装置のような印字騒音を発生することもない。
With a simple configuration, many types of character fonts can be changed and printed, and moreover, it does not generate printing noise unlike conventional daisy-wheel type printing devices.

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

第1図は本発明の装置の原理を示す斜視図、第2図は同
装置における文字パターンアレイの着脱構造の一例を示
す側面図、第3図は第2図における文字パターンアレイ
の構造を示す正面図である。 ■・・・LED (光源)アレイ、IA・・・LED 
(光源)、2・・・文字パターンアレイ、2A・・・文
字パターンアレイ、3・・・微小レンズアレイ、3A・
・・微小レンズ、4・・・投影レンズ、5・・・結像面
、5A・・・文字像、10・・・本体ホルダ、11・・
・文字パターンアレイ交換用開口、12・・・文字パタ
ーンアレイホルダ、12A・・・把持部。
FIG. 1 is a perspective view showing the principle of the device of the present invention, FIG. 2 is a side view showing an example of the attachment/detachment structure of the character pattern array in the same device, and FIG. 3 is the structure of the character pattern array in FIG. 2. It is a front view. ■...LED (light source) array, IA...LED
(light source), 2... Character pattern array, 2A... Character pattern array, 3... Microlens array, 3A.
...Minute lens, 4...Projection lens, 5...Imaging surface, 5A...Character image, 10...Body holder, 11...
- Character pattern array replacement opening, 12...Character pattern array holder, 12A...Gripping portion.

Claims (1)

【特許請求の範囲】[Claims] 一次元又は二次元に配列した光源アレイと、前記光源ア
レイの各光源と1対1に対応して配置した文字、数字、
記号等を表わす透過パターンアレイと、前記各光源及び
前記各透過パターンと1対1に対応して配置した微小レ
ンズアレイと、前記各光源から射出し、前記各透過パタ
ーンと前記各微小レンズとを通過した光束のうち、少な
くとも2つ以上の微小レンズを通過した光束が同時に入
射可能な大きさの入射瞳を持った第2のレンズとを備え
、各透過パターンの像を前記微小レンズアレイと前記第
2のレンズとで構成した結像レンズ系の結像面に形成す
る結像光学系であって、前記透過パターンアレイが結像
光学系の他の部分に対し着脱可能であることを特徴とす
る結像光学装置。
A light source array arranged one-dimensionally or two-dimensionally, and letters and numbers arranged in one-to-one correspondence with each light source of the light source array,
a transmission pattern array representing symbols, etc.; a microlens array arranged in one-to-one correspondence with each of the light sources and each of the transmission patterns; a second lens having an entrance pupil large enough to allow the light fluxes that have passed through at least two microlenses to enter simultaneously among the light fluxes that have passed through the lens; An imaging optical system formed on an imaging surface of an imaging lens system configured with a second lens, characterized in that the transmission pattern array is removable from other parts of the imaging optical system. imaging optical device.
JP17241088A 1988-07-11 1988-07-11 Image forming optical apparatus Pending JPH0222075A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17241088A JPH0222075A (en) 1988-07-11 1988-07-11 Image forming optical apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17241088A JPH0222075A (en) 1988-07-11 1988-07-11 Image forming optical apparatus

Publications (1)

Publication Number Publication Date
JPH0222075A true JPH0222075A (en) 1990-01-24

Family

ID=15941441

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17241088A Pending JPH0222075A (en) 1988-07-11 1988-07-11 Image forming optical apparatus

Country Status (1)

Country Link
JP (1) JPH0222075A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100446967B1 (en) * 2001-06-28 2004-09-01 주식회사 엘지이아이 Apparatus for vibrator in linear motor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100446967B1 (en) * 2001-06-28 2004-09-01 주식회사 엘지이아이 Apparatus for vibrator in linear motor

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