JPS60107027A - Optical system driving device of variable power copying machine - Google Patents
Optical system driving device of variable power copying machineInfo
- Publication number
- JPS60107027A JPS60107027A JP21426383A JP21426383A JPS60107027A JP S60107027 A JPS60107027 A JP S60107027A JP 21426383 A JP21426383 A JP 21426383A JP 21426383 A JP21426383 A JP 21426383A JP S60107027 A JPS60107027 A JP S60107027A
- Authority
- JP
- Japan
- Prior art keywords
- mirror
- optical system
- variable power
- copying machine
- moved
- 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
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G15/00—Apparatus for electrographic processes using a charge pattern
- G03G15/04—Apparatus for electrographic processes using a charge pattern for exposing, i.e. imagewise exposure by optically projecting the original image on a photoconductive recording material
- G03G15/041—Apparatus for electrographic processes using a charge pattern for exposing, i.e. imagewise exposure by optically projecting the original image on a photoconductive recording material with variable magnification
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Exposure Or Original Feeding In Electrophotography (AREA)
- Variable Magnification In Projection-Type Copying Machines (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は可変縮倍工複写機の光学系駆動装置に関するも
のである。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to an optical system drive device for a variable magnification copying machine.
（従来の技術）
従来の可変倍率写機において、被写体から像面に至る共
役長を変更するためのミラーの位置を移動させる手段と
しては、その駆動源に回転式モーターを使用し、該モー
ターの回転、゛を直線運動変換機構を用いて＠線運動に
変換してミラー位置の移動を行なっていた。そのために
機械的な構成がＩＩ雑になって部品点数も多く必要とし
、従ってこれを製作するにあたってはコストアップを免
かれず、又前記構成が機＊になることに起因して連結部
等に誤差が牛じ、これが累積することによって装置自体
のｎ度の低下を招き、複写機そのものの信頼性を低下さ
せてしまうといった欠点をもっていた。(Prior Art) In a conventional variable magnification camera, a rotary motor is used as a drive source to move the position of a mirror in order to change the conjugate length from the subject to the image plane. The mirror position was moved by converting rotation and ゛ into @linear motion using a linear motion conversion mechanism. As a result, the mechanical configuration becomes complicated and a large number of parts are required, which inevitably increases the cost of manufacturing it.Also, since the above configuration becomes a machine*, it requires a large number of parts, etc. This has the disadvantage that the errors accumulate and cause a degree of deterioration of the apparatus itself, reducing the reliability of the copying machine itself.
（発明の目的）
本発明は上記従来の可変倍率写機の光学系駆動装置の欠
点を除去するためになされたものであって、倍率を変更
する毎に位置移動を行なうミラーの、その移ｌｉｔ苧段
として駆動源には回転式モーターを用いず、従ってこの
モーターの回転力をｍ線運動に切換える手段を省略する
ことによって機械的な構成をよシ簡単にし、これによっ
て部品点数の減少を可能にして製作コストをダウンさせ
ると共に、故障＃ｊＩ度の減少をはかシ装置自体の精度
の向上も併せＷｌ能とした可変縮倍工複写機の光学系駆
動装置を提供することを目的としたものである。(Object of the Invention) The present invention has been made in order to eliminate the drawbacks of the optical system driving device of the conventional variable magnification photographing machine, and it is an object of the present invention to eliminate the drawbacks of the optical system driving device of the conventional variable magnification camera. A rotary motor is not used as the drive source for the ramie stage, so the mechanical configuration is simplified by omitting the means to switch the rotational force of this motor to m-line motion, which allows for a reduction in the number of parts. The object of the present invention is to provide an optical system drive device for a variable magnification copying machine that can reduce manufacturing costs, reduce the number of failures, and improve the accuracy of the device itself. It is something.
（発明の構成）
そのために本発明は前記共役長変更用ミラーの位置移動
に用いる駆動源に、■線型モーター即ちリニアパルスモ
ータ−を使用し、このモーターのＮ線出力をミラーにダ
イレクトに伝達することによってミラー移動を行なうよ
うにしたものである。(Structure of the Invention) For this purpose, the present invention uses a linear motor, that is, a linear pulse motor, as a drive source used to move the position of the conjugate length changing mirror, and directly transmits the N-line output of this motor to the mirror. The mirror is moved by this.
（実施例）
以下本発明を図面に示す実施例に基づいて詳細に説明す
る。(Example) The present invention will be described in detail below based on an example shown in the drawings.
第１図は本発明の可変縮倍複写機の光学系の概略構成図
である。FIG. 1 is a schematic diagram of the optical system of a variable magnification copying machine according to the present invention.
即ち同図において、プラテン１０Ｔ部の適所には光源２
及びリフレクタ−３を配置し、原稿を前記プラテン１上
において矢印入方向に送ることにより、その像を光源２
及びリフレクタ−３によって、その下部に配置した第一
ミラー４へと反射させ、該第−ミラー４からは図中左方
のミラーアッセイ５に設けた上下一対の第二ミラー６及
び第三ミラーＴのうち第二ミラー６へと反射させると共
に、該第二ミラー６からはその下部の第三ミラー７へと
反射させ、第三ミラー７からは図中右方のミラーアッセ
イ８の第四ミラー９へと、あいだにレンズ１０を介して
進光させ、該第四ミラー９からはその１部の第五ミラー
１１に反射させると共に、該第五ミラー１１からはその
左方に設けた第六ミラー１２に反射させ、該第六ミラー
１２からは感光体１３０表面に結像させることは従来通
シである。そして、前記原稿の像を感光体１３の表面に
結像させるにあたシ、該像の拡大又は縮小する際には共
役長の変化に伴ない前記ミラーアッセイ５及び８を所定
の位置まで移動させることによって行なうことも従来通
シである。しかるにその移動は、第２図に示すようにき
ラーアッセイ５及び８の両端側にリニアパルスモーｐ−
１４，１５ヲ夫々取付ケ、該リニアパルスモータ−１４
，１５は本体フレーム１６の手前側から奥付側にかけて
配置した二本の支持杆１７ 、１７’に高低をつけて杆
方向に移動可能に取付け、該支持杆１７．１７上ヲ前記
リニアパルスモーｐ−１４，１ｓｔ−作りさせてＩ’ｌ
ｌ移動させることによシミラーアツセイ５及び８を所定
の位置まで移動させて該ミラーアッセイ５及び８に設け
た第二ミラー６及び第三ミラー７、並びに第四ミラー９
及び第五ミラー１１を縮倍率の変更に伴なう共役長の変
化に対応できるようにする。That is, in the same figure, a light source 2 is placed at a suitable location on the platen 10T.
and a reflector 3, and by feeding the document in the direction of the arrow on the platen 1, its image is transmitted to the light source 2.
and is reflected by the reflector 3 to a first mirror 4 disposed below, and from the second mirror 4, a pair of upper and lower second mirrors 6 and a third mirror T provided in the mirror assay 5 on the left side in the figure are reflected. It is reflected to the second mirror 6, and from the second mirror 6 it is reflected to the third mirror 7 below it, and from the third mirror 7 it is reflected to the fourth mirror 9 of the mirror assay 8 on the right side of the figure. In between, the light travels through the lens 10, and is reflected from the fourth mirror 9 to the fifth mirror 11, which is a part of the fourth mirror 9, and from the fifth mirror 11 to the sixth mirror provided to the left thereof. It is conventional practice to reflect the light onto the sixth mirror 12 and form an image on the surface of the photoreceptor 130 from the sixth mirror 12. In order to form an image of the original on the surface of the photoreceptor 13, when enlarging or reducing the image, the mirror assays 5 and 8 are moved to predetermined positions as the conjugate length changes. It is also conventional to do this by causing the However, as shown in FIG.
14 and 15 respectively, the linear pulse motor 14
, 15 are attached to two support rods 17 and 17' arranged from the front side to the colophon side of the main body frame 16 so as to be movable in the rod direction, and the linear pulse mode p is mounted on the support rods 17 and 17. -14,1st- Let me make it I'l
The second mirror 6, the third mirror 7, and the fourth mirror 9 provided on the mirror assays 5 and 8 by moving the similar assays 5 and 8 to predetermined positions.
And the fifth mirror 11 is made to be able to cope with changes in conjugate length due to changes in magnification.
（発明の効果）
本発明は以上のように構成したものである。而して前記
縮倍率の変更に伴ない共役長の変什に合わせて第二ミラ
ー６及び第三ミラーＴ１並びに第四ミラー８及び第五ミ
ラー１１を所定の位ｔｉまで移動させるにあたシ、これ
らのものを備えたミラーアッセイ５及び８の１ｉｔａｓ
ａはリニアパルスモータ−１４，１５の直線出力によっ
て支持杆１７゜１１′上を匝接的に移動させて行表うも
のであって、従来の回転式モーターを使用し、該モータ
ーの回転力を直線運動に変換して、これによシ前記ミラ
ーアッセイを所定の位置まで移動させるものではないの
で、モーターの回転力を百線運動に変換するための機構
は不要となシ、その分構成が簡単となシ、部品店数の減
が可能なことはいうまでもなく、故障頻噴も少々〈々シ
、製作にあたってはコストダウンが可能なことは勿論の
こと、装量自体の精度が向上するので複写機そのものの
信頼性の向上に役立つと℃・つた効果がある。(Effects of the Invention) The present invention is constructed as described above. Therefore, in order to move the second mirror 6 and the third mirror T1 and the fourth mirror 8 and the fifth mirror 11 to a predetermined position ti in accordance with the change in the conjugate length due to the change in the magnification ratio, , 1itas of Miller Assay 5 and 8 with these
(a) is carried out by moving tangentially on the support rod 17° 11' using the linear output of linear pulse motors 14 and 15. A conventional rotary motor is used, and the rotational force of the motor is Since the mirror assay is not moved to a predetermined position by converting it into a linear motion, there is no need for a mechanism to convert the rotational force of the motor into a linear motion. It goes without saying that it is possible to reduce the number of parts shops, and to reduce the frequency of malfunctions.It is possible to reduce production costs, as well as to improve the accuracy of the loading itself. This has the effect of improving the reliability of the copying machine itself.
又本発明は縮小、拡大幕をリニアパルスモータ−１４，
１５の駆動によシ最小ワンパルスピッチでのミラーアッ
セイ５及び８の位置決めが可能であるので任意縮倍が無
段階に等しく可能となるといった機能上の効果も併せ有
するものである。Further, the present invention uses a linear pulse motor 14 for reducing and enlarging the curtain.
Since the mirror assays 5 and 8 can be positioned at the minimum one-pulse pitch by driving the mirror 15, it also has the functional effect that arbitrary magnification is equally possible steplessly.
第１図は本発明の可変縮倍複写機の光学系の概略構成図
、第２図は同、被写機の一実施例を示す側視図である。FIG. 1 is a schematic diagram of the optical system of a variable magnification copying machine according to the present invention, and FIG. 2 is a side view showing an embodiment of the same.
Claims (1)
変共役長光学系の縮小方向及び拡大方向へのミラーを移
動させる手段として、その駆動源にリニアパルスモータ
−を使用し、当該リニアパルスモータ−の直接駆動力に
よって移動させることを％徴とした可変倍率複写機の光
学系駆動装置。In a variable reduction ratio copying machine, a linear pulse motor is used as a drive source as a means for moving a mirror in a reduction direction and an enlargement direction of a variable conjugate length optical system having reduction and enlargement functions. An optical system drive device for a variable magnification copying machine that is moved by a direct driving force.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21426383A JPS60107027A (en) | 1983-11-15 | 1983-11-15 | Optical system driving device of variable power copying machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21426383A JPS60107027A (en) | 1983-11-15 | 1983-11-15 | Optical system driving device of variable power copying machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS60107027A true JPS60107027A (en) | 1985-06-12 |
Family
ID=16652850
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP21426383A Pending JPS60107027A (en) | 1983-11-15 | 1983-11-15 | Optical system driving device of variable power copying machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60107027A (en) |
-
1983
- 1983-11-15 JP JP21426383A patent/JPS60107027A/en active Pending
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