JPS5837666A - Exchanger for color separating filter in color copying machine - Google Patents

Exchanger for color separating filter in color copying machine

Info

Publication number
JPS5837666A
JPS5837666A JP56135611A JP13561181A JPS5837666A JP S5837666 A JPS5837666 A JP S5837666A JP 56135611 A JP56135611 A JP 56135611A JP 13561181 A JP13561181 A JP 13561181A JP S5837666 A JPS5837666 A JP S5837666A
Authority
JP
Japan
Prior art keywords
filter
filters
color separation
color
separation filter
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
JP56135611A
Other languages
Japanese (ja)
Inventor
Nobuo Kasahara
伸夫 笠原
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.)
Ricoh Co Ltd
Original Assignee
Ricoh 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 Ricoh Co Ltd filed Critical Ricoh Co Ltd
Priority to JP56135611A priority Critical patent/JPS5837666A/en
Publication of JPS5837666A publication Critical patent/JPS5837666A/en
Pending legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03GELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G15/00Apparatus for electrographic processes using a charge pattern
    • G03G15/01Apparatus for electrographic processes using a charge pattern for producing multicoloured copies
    • G03G15/0105Details of unit
    • G03G15/011Details of unit for exposing

Abstract

PURPOSE:To reduce weight by the use of dye filters and to deal with high speed revolutions and a change in humidity by the constitution wherein color separating filters are tied and held by means of transparent yarn to filter holding members which are fixed radially to a revolving shaft. CONSTITUTION:Three sheets of filter holding frames 32 are mounted to a shaft 30 via flanges 31, and dye separating filters 35 of blue, green and red having a rectangular strip shape are mounted to the frames 32. Only the short sides of the filters 35 are adhered to the frames 32, but the long sides are merely tied to the frames 32 by winding transparent nylon yarn 37 at suitable pitches, so that even when wind pressure is exerted upon the surfaces of the filters 35 during rotation the wind goes through the filters, whereby the exertion of exessive force upon the filters 35 is obviated. Even when the filters 35 elongate or contract by the effect of humidity, the filters do not deform or break.

Description

【発明の詳細な説明】 この発明は、カラー電子写真複写機における色分解フィ
ルター交換装置に関する。
DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a color separation filter replacement device for a color electrophotographic copying machine.

カラー電子写真複写機においては、画像露光々路に通常
’flt %緑、赤の3色の色分解フィルターを交換可
能に設け、これらのフィルターを1回の露光毎に切換え
て3回露光を行ない、1回毎に上記フィルターの余色(
黄、マゼンタ、シアン)の現像剤で現像を行々い、同一
の転写紙に重ねて転写することにより原稿と同じカラー
コピーが得られる。
In a color electrophotographic copying machine, three color separation filters, green and red, are usually replaceably installed in the image exposure path, and these filters are switched for each exposure to perform three exposures. , the extra color of the above filter (
By developing the images with yellow, magenta, and cyan developer and transferring them onto the same transfer paper, a color copy identical to the original can be obtained.

に記の色分解フィルター交換装置としては、従来第1図
に示す如く、複写用レンズlの直前又は直後に、三つの
色分解フィルター2を1つの円周上に設けた円板状のフ
ィルター固定枠3を駆動源4により歯車Ω噛合い4によ
り回転駆動して切[鉋える方式や、第2図に示す如く、
スリット露光々路5に沿って3枚の色分解フィルター6
を配置し、図示せぬ駆動装置により1枚ずつ選択的に露
光々路5に挿入するようにした装置V?が知られている
Conventionally, as shown in FIG. 1, the color separation filter replacement device described above is a disk-shaped filter fixing device in which three color separation filters 2 are provided on one circumference immediately before or after the copying lens l. The frame 3 is rotatably driven by a drive source 4 through a gear Ω mesh 4 to cut the frame 3, as shown in Fig. 2.
Three color separation filters 6 are placed along the slit exposure path 5.
The device V? is arranged such that the sheets are selectively inserted one by one into the exposure path 5 by a drive device (not shown). It has been known.

これらの装置はいずれも、色分解フィルターの切換えに
時間が掛り、又装置が大型化する。!11)に前者の方
式は複写用レンズがスルーレンズに限定され、設置場所
も限定される欠点がある。
In all of these devices, it takes time to change the color separation filters, and the size of the device increases. ! 11) The former method has the drawback that the copying lens is limited to a through lens, and the installation location is also limited.

又、第3図に示す如く、1本の回転軸7に、その軸方向
に長い短冊形の色分解フィルター8を放射状に設け、こ
れらの各フィルターを露光々路5に切換えて挿入できる
ように17だフィルター交換装置も知られている。
Further, as shown in FIG. 3, long strip-shaped color separation filters 8 are provided radially on one rotary shaft 7 in the axial direction, so that each of these filters can be switched and inserted into the exposure path 5. 17. Filter changing devices are also known.

本発明は、この方式の色分解フィルター交換装置の改良
に関するものである。
The present invention relates to an improvement of this type of color separation filter replacement device.

この方式のフィルター交換装置1′tの従来技術として
は、例えば特開昭54 73058号公報に、カラー複
写と白黒複写兼用複写機に使用する色分解フィルター交
換装置として青、緑、赤及びN−Dにユートラルデンシ
ティー)の4枚のフィルターを1本のtl(iに十字形
に取イ」けた装置が示されている。
As a prior art of this type of filter changing device 1't, for example, Japanese Patent Application Laid-Open No. 54-73058 discloses a color separation filter changing device for use in color copying and monochrome copying machines for blue, green, red and N- A device is shown in which four filters of utral density (D) are arranged in a cross shape as one TL (i).

N・・DフィルターrP、白黒用である。上記の4枚の
フィルターのう゛1ハ青−二緑のフィルターはガラス板
をベースに他物質の層をコーティングして成る干渉フィ
ルター9が使用され、赤とN−Dフィルター&:I: 
1. リアセテ−1・の薄板を染料で染色した染オニ1
フィルター10が使用されている。これらのフィルター
を組合せて使用した場合、干渉フィルターを′)Y、が
1lTi :l尚するlL’1と染オニ・1フイルター
を光が通過する1(′1とで光学パスの条件が異るため
、赤色フィルター、N−■)フィルターに接近して干渉
フィルターど同1’、’のガラス114:挿入して光学
パスが同一になる」:うに補正を行なっている。そのた
め、構造が腹橘イ(になり高価につくとともに、重量が
大きくなり駆動源の負111が増加する欠点がある。
N...D filter rP, for black and white. Among the four filters mentioned above, the first and third blue and second green filters are interference filters 9 which are made of a glass plate coated with layers of other substances, and the red and ND filters &:I:
1. Dyeing 1 made by dyeing a thin plate of Riacete 1 with dye
Filter 10 is used. When these filters are used in combination, the optical path conditions are different between the interference filter ′)Y, which is 1lTi:l, and 1(′1, where the light passes through the dyed Oni 1 filter). Therefore, interference filters 1' and 1' are inserted close to the red filter, N-1) filter, and the optical paths become the same. As a result, the structure becomes bulky and expensive, and the weight increases and the negative force of the driving source increases.

トリアセテ−1・等の薄い板を染色して作られた染料系
フィルターは、色分解性能も良く、非常に薄いため、]
r7(;1時のフィルターの歪等による分解性能の変化
、結像性能の悪化も少なく、かつ安価であるため従来よ
り使用されて来たが、回転111+のまわりに放射状に
増刊けて高速回転した場合乞り風圧によシ、取付は方に
よってlj:フィルターがその保持部材から脱落したり
破損したりする〕13・それがあり、又このフィルター
にI: 7!11!度によって伸縮するため保持枠に四
周を固定し/ζ場舎変形すると云う問題点があった。
Dye-based filters made by dyeing thin plates such as triacetate 1 have good color separation performance and are very thin.
r7 (; Changes in resolution performance due to distortion of the filter at 1 o'clock, deterioration of imaging performance are small, and it is inexpensive, so it has been used for a long time, but it has been used for a long time. If you do this, the filter may fall off or be damaged due to the wind pressure, depending on how you install it, and also because the filter expands and contracts depending on the degree. There was a problem in that the four circumferences were fixed to the holding frame and the space was deformed.

この発明は、従来の色分解フィルター交換装置の上述の
欠点にかんがみ、高速切換えに適したに記の回転軸に放
射状にフィルターを配設し/こ方式の装置に、色分解フ
ィルターとして染料系フィルターを採用して重量を軽減
し、しかも高速回転や湿度の変化によってもフィルター
保1”N部(lからの脱落や破損、変形等の一11故を
生ずるおそわ5の々い、簡単な構成の安価な色分解フィ
ルター交換!−冒1・−゛を提供するととを目的とする
In view of the above-mentioned drawbacks of the conventional color separation filter changing device, the present invention has been developed by arranging filters radially on the rotating shaft as described below, which is suitable for high-speed switching. It has a simple structure, which reduces the weight by adopting a filter retainer, which can easily be damaged due to high-speed rotation or changes in humidity. The purpose is to provide inexpensive color separation filter replacement!

以下、本発明を、その実M1’r例を示す図面にもとす
いて詳細に説明する。
Hereinafter, the present invention will be explained in detail with reference to the drawings showing an actual M1'r example.

第4図は本発明による色分解フィルター交換装置を設け
たカラー電子写真複写機の一例を示す図であり、光源1
2により照射された原稿13で反射され/こ光C12、
第1ミラー14、第2ミラーエ5で反射し/こ後、−(
ンミラーレンズ16により収束するとともに反射し、第
3ミラー17、第4ミラー18、第5ミラー19で反射
した後感光体ドラム2o上に結像する。原稿の走査は、
光源12と第1ミラー14とが図中に実線で示す位置か
ら鎖線で示す12’及びH′の位置に同じ速度で移動し
、第2ミラーI5がぞの1(分の速度で同方向に移動す
るととによって行庁われる。
FIG. 4 is a diagram showing an example of a color electrophotographic copying machine equipped with a color separation filter changing device according to the present invention.
The light C12 reflected by the original 13 irradiated by C12,
After being reflected by the first mirror 14 and the second mirror 5, -(
The light is converged and reflected by the mirror lens 16, and after being reflected by the third mirror 17, fourth mirror 18, and fifth mirror 19, an image is formed on the photoreceptor drum 2o. Scanning the original is
The light source 12 and the first mirror 14 move at the same speed from the position indicated by the solid line in the figure to the positions 12' and H' indicated by the chain line, and the second mirror I5 moves in the same direction at a speed of 1 (minutes). When you move, you will be transferred to the government office.

第3ミラー17と第4ミラー18との間には、本発明に
よる色分1f+イフイルター交換装置21が設けられて
いる。色分解フィルター交換装置21は、青、緑、赤の
3神の染色系フィルターが軸に放射状に取旧けr〕れで
よ、・す、作像工程に従い順次切換えられる。1;うに
なっている。フィルターの切換えはこの?Sr ’r;
機に:j・・いてtよ、光学スキャナーが1つの画像を
作像後、定位11T(スタート位置)に戻る間に行〃わ
れる。し/ヒがってフィルターの切換えは非常に高速度
、短時間に行なわれる必要がある。フイルターは光学系
のスリット光路と平行に設置され、一方向に回転可能と
外っている。
Between the third mirror 17 and the fourth mirror 18, a color 1f+ filter exchange device 21 according to the present invention is provided. In the color separation filter changing device 21, the three dyeing filters of blue, green, and red are replaced radially around the axis.The color separation filter changing device 21 is replaced in sequence according to the image forming process. 1; It is turning into a sea urchin. Is this how you change the filter? Sr'r;
This is done while the optical scanner returns to the normal position 11T (starting position) after forming one image. Filter switching must be performed at very high speed and in a short period of time. The filter is installed parallel to the slit optical path of the optical system and can be rotated in one direction.

感光体ドラム20の周囲にv;1、露光位置にfjfM
いて黄、マゼンタ、シアンの3色の現像剤を夫々保有す
る現像器22 、28 、24が設けられており、各露
光fσに順次別の現像器で現像され、給紙装置25より
給送され転写ドラム26に巻着されて回転する転写紙S
に重ねて転写された後、転写紙s kl:転写ドラム2
6から剥離され、定着装置ff# 27で定着さノ1.
た後機外のトレイ28上に制用されて複写が完了する。
v;1 around the photoreceptor drum 20, fjfM at the exposure position
Developing devices 22 , 28 , and 24 each holding three color developers of yellow, magenta, and cyan are provided, and the developer is sequentially developed in another developing device for each exposure fσ, and is fed from a paper feeding device 25. Transfer paper S wrapped around the transfer drum 26 and rotating
Transfer paper s kl: Transfer drum 2
It is peeled off from No. 6 and fixed by fixing device ff#27.
After that, it is placed on the tray 28 outside the machine, and the copying is completed.

色分解フィルター交換装置は、第5図及び第6図に詳細
に示す如< 、+ll+goの両端部に設けにフランジ
31に3枚のフィルター保持枠32がねじによシ放射状
に固定されている。フィルター保ト、1枠32は短冊形
のフィルター35の寸法よりや\小さい内側寸法を有す
る枠状に形成され、長い方の辺を軸に平行に取付けられ
る。一方のフランジ31の中心に設けられたボス31a
の孔にはフィルター駆動111I1133が挿入され、
該駆動軸33に植設された位置決めピン34をボス31
aに設けた案内溝311+に係合させるととにJ:す、
駆動軸33の回転がフィルターの1111130に伝達
され、フィルター軸3oは図中に矢印で示す一方向に回
転する。
As shown in detail in FIGS. 5 and 6, the color separation filter exchange device has three filter holding frames 32 fixed radially to flanges 31 at both ends of +ll+go by screws. The filter holder frame 32 is formed into a frame shape having an inner dimension slightly smaller than the dimension of the rectangular filter 35, and is attached with its longer side parallel to the axis. Boss 31a provided at the center of one flange 31
A filter drive 111I1133 is inserted into the hole,
The positioning pin 34 implanted in the drive shaft 33 is connected to the boss 31.
When it is engaged with the guide groove 311+ provided in a,
The rotation of the drive shaft 33 is transmitted to the filter 1111130, and the filter shaft 3o rotates in one direction shown by an arrow in the figure.

各フィルター保持枠32には、第7図に示す要領で、1
1i′、緑、赤の3錘の短冊形染料系色分解フィルター
35が取(=Jけられている。すなわち、フィルター3
5は両4111+の短辺のみを両面接着テープで保持枠
32の対応する位置に接着し、長い方の辺はその寸\に
して、保持枠32の端部に設けたナイロン糸固定ねじ3
6に一端を固定した透明なナイロン糸37を’6G’h
当なピッチで斜方向に巻回した後、保持枠32の他端に
設けた光固定ねじにナイロン糸の他端を結び伺けてフィ
ルターを保持枠32に固縛する。保持枠32の長辺の縁
には、ナイロン糸37ヲ引掛けて位置決めするためのノ
ツチ38が数個所に設けられている。このナイロン糸の
太さは1乃至3号相当のものが適尚である。外お、この
実施例ではフィルター35をナイロン糸37で固縛する
に先立って両端を保持枠32に接着するものとしたが、
適宜の手段で一時的に保持枠にクランプしてナイロン糸
で固縛する場合は、フィルターの全周を非接着すること
ができる。
Each filter holding frame 32 is provided with one filter as shown in FIG.
1i', three rectangular dye-based color separation filters 35 of green and red are removed (= J is removed. In other words, the filter 3
5 glues only the short sides of both 4111+ to the corresponding positions of the holding frame 32 with double-sided adhesive tape, and the longer side is made to the same size as the nylon thread fixing screw 3 provided at the end of the holding frame 32.
Transparent nylon thread 37 with one end fixed to '6G'h
After winding the filter diagonally at a suitable pitch, the other end of the nylon thread is tied to the optical fixing screw provided at the other end of the holding frame 32 to secure the filter to the holding frame 32. Several notches 38 are provided on the long edges of the holding frame 32 for hooking and positioning the nylon thread 37. The appropriate thickness of this nylon thread is one equivalent to No. 1 to No. 3. In addition, in this embodiment, both ends of the filter 35 are glued to the holding frame 32 before being secured with the nylon thread 37.
If the filter is temporarily clamped to a holding frame by appropriate means and secured with nylon thread, the entire circumference of the filter can be non-adhered.

色分解フィルターとしてdl、例えばコダック社製のラ
ッテンフィルター、富士写真フィルム社製のバンドパス
フィルタ、シャープカットフィルター等が適しており、
後者の場合、青色フィルターにはBPB 45 、緑色
フィルターには旧〕B53のバンドパスフィルター、赤
色フィルターにlJ’、 SC60のシャープカットフ
ィルターを使用することが出来る。
Suitable color separation filters include dl, such as Kodak's Wratten filter, Fuji Photo Film's bandpass filter, and sharp cut filter.
In the latter case, a BPB 45 can be used for the blue filter, an old B53 bandpass filter can be used for the green filter, and an lJ', SC60 sharp cut filter can be used for the red filter.

フィルターの切換えd:前述の如く高速度て行なわれる
ので、切換時フィルター35に掛る風圧のためフィルタ
ーが破損したり、保持枠から脱落することのないように
フィルター35は第8図に示す如く、保持枠32の回転
時風圧が掛らない方の面に接するようにナイロン糸37
で保持され、フィルター切換時の高速回転によってフィ
ルター35の表面に風圧が掛ってもフィルターの一]三
下、場合によっては両端部で保持枠との間に隙間を生じ
て風が抜けてフィルターに過大なカが掛からないように
なっている。
Filter switching d: As mentioned above, the filter 35 is changed at high speed, so that the filter 35 is not damaged or falls off from the holding frame due to the wind pressure applied to the filter 35 at the time of switching, as shown in FIG. The nylon thread 37 is in contact with the side of the holding frame 32 that is not exposed to wind pressure when it is rotated.
Even if wind pressure is applied to the surface of the filter 35 due to high-speed rotation during filter switching, a gap may be created between the filter 35 and the holding frame at the lower part of the filter, or in some cases at both ends, allowing air to escape and damage the filter. This prevents excessive force from being applied.

又 ?!、、!度にJ:リフィルターが伸縮した場合に
も四周を接着されていないのでフィルターに無理な力が
川って変形したり破損したりすることはない。
or ? ! ,,! J: Even if the refilter expands or contracts, the four circumferences are not glued, so the filter will not be deformed or damaged by excessive force.

この場合V1、フィルターの全周が非接着の方が好都合
である。
In this case, V1, it is more convenient for the entire circumference of the filter to be non-adhesive.

以上の如く、本発明によれば、簡単な構成で安価で確実
な色分解フィルター切換装置を得ることがてきる。
As described above, according to the present invention, it is possible to obtain an inexpensive and reliable color separation filter switching device with a simple configuration.

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

第1図乃至第3図C1夫々従来の色分解フィルター交換
装置の例を示す断面図、第4図は本発明の装置を使用し
たカラー複写機の一例の概略を示す断面図、第5図は本
発明の実施例の斜視図、第6図はその断面図、第7図は
その色分解フィルターを保持部材に増刊けた状態を示す
斜視図、第8図dlフィルターの取付方向を説明する断
面図である。 30・・・回転Qll+       32・・・フィ
ルター保持部材・  X+1゜
1 to 3 C1 are sectional views each showing an example of a conventional color separation filter replacement device, FIG. 4 is a sectional view schematically showing an example of a color copying machine using the device of the present invention, and FIG. A perspective view of an embodiment of the present invention, FIG. 6 is a sectional view thereof, FIG. 7 is a perspective view showing a state in which the color separation filter is attached to a holding member, and FIG. 8 is a sectional view explaining the mounting direction of the DL filter. It is. 30...Rotation Qll+ 32...Filter holding member・X+1°

Claims (3)

【特許請求の範囲】[Claims] (1)一本の回転軸にその軸方向に長い短冊形の染料系
色分解フィルターを複数枚放射状に増刊けて成シ、これ
らの各色分解フィルターを画像露光々路に切換えて挿入
できるようにされたカラー電子写真複写機の色分解フィ
ルター交換装置において、上記の色分解フィルターが回
転軸に放射状に固定されたフィルター保持部利に少なく
とも相対する長辺が保持部材に接着されないで透明、糸
で該保持部材に固縛して保持されていることを特徴とす
る色分解フィルター交換装置。
(1) A single rotary shaft is equipped with multiple dye-based color separation filters radially extending in the direction of the axis, and these color separation filters can be switched and inserted into various image exposure paths. In a color separation filter replacement device for a color electrophotographic copying machine, the above-mentioned color separation filter is fixed radially to a rotating shaft, and at least the long side opposite to the filter holding part is transparent and made of thread without being glued to the holding member. A color separation filter exchange device characterized in that the color separation filter exchange device is held in a fixed manner by the holding member.
(2)上記の色分解フィルターが上記のフィルター保持
部材に対して四辺を固定しない状態で保持されているこ
とを特徴とする特許請求の範囲第1項に記載の色分解フ
ィルター交換装置。
(2) The color separation filter replacement device according to claim 1, wherein the color separation filter is held with its four sides not fixed to the filter holding member.
(3)上記の色分解フィルターが保持部月の、該色分解
フィルター切換装置がフィルター切換エノために回転し
た場合に風圧の掛らない側の面に保持されていることを
特徴とする特許請求の範囲第1項又は第2項に記載の色
分解フィルター交換装置。
(3) A patent claim characterized in that the above-mentioned color separation filter is held on the surface of the holding part on the side where wind pressure is not applied when the color separation filter switching device rotates for filter switching. The color separation filter exchange device according to item 1 or 2.
JP56135611A 1981-08-31 1981-08-31 Exchanger for color separating filter in color copying machine Pending JPS5837666A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56135611A JPS5837666A (en) 1981-08-31 1981-08-31 Exchanger for color separating filter in color copying machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56135611A JPS5837666A (en) 1981-08-31 1981-08-31 Exchanger for color separating filter in color copying machine

Publications (1)

Publication Number Publication Date
JPS5837666A true JPS5837666A (en) 1983-03-04

Family

ID=15155852

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56135611A Pending JPS5837666A (en) 1981-08-31 1981-08-31 Exchanger for color separating filter in color copying machine

Country Status (1)

Country Link
JP (1) JPS5837666A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003106899A (en) * 2001-09-28 2003-04-09 Ando Electric Co Ltd Optical spectroscope

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50137140A (en) * 1974-04-17 1975-10-31
JPS5220240B2 (en) * 1972-05-25 1977-06-02

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5220240B2 (en) * 1972-05-25 1977-06-02
JPS50137140A (en) * 1974-04-17 1975-10-31

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003106899A (en) * 2001-09-28 2003-04-09 Ando Electric Co Ltd Optical spectroscope

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