JPS59224834A - Optical system device of electrophotographic copying machine or the like - Google Patents

Optical system device of electrophotographic copying machine or the like

Info

Publication number
JPS59224834A
JPS59224834A JP8908983A JP8908983A JPS59224834A JP S59224834 A JPS59224834 A JP S59224834A JP 8908983 A JP8908983 A JP 8908983A JP 8908983 A JP8908983 A JP 8908983A JP S59224834 A JPS59224834 A JP S59224834A
Authority
JP
Japan
Prior art keywords
light
light source
source lamp
lens
optical system
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
JP8908983A
Other languages
Japanese (ja)
Inventor
Hiroshi Furuya
古谷　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.)
Fujifilm Business Innovation Corp
Original Assignee
Fuji Xerox 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 Fuji Xerox Co Ltd filed Critical Fuji Xerox Co Ltd
Priority to JP8908983A priority Critical patent/JPS59224834A/en
Publication of JPS59224834A publication Critical patent/JPS59224834A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B27/00—Photographic printing apparatus
    • G03B27/32—Projection printing apparatus, e.g. enlarger, copying camera
    • G03B27/52—Details
    • G03B27/54—Lamp housings; Illuminating means
    • G03B27/542—Lamp housings; Illuminating means for copying cameras, reflex exposure lighting

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Light Sources And Details Of Projection-Printing Devices (AREA)

Abstract

PURPOSE:To prevent light of a light source lamp from entering a lens directly, and irradiate the inside of a cavity with the light uniformly and eliminate a zone deficient in the quantity of light, by arranging plural light shield plates having specular surfaces between the light source lamp and lens in the shape of blinds. CONSTITUTION:Plural light shield plates 5 having specular surfaces are arranged between the light source lamp 2 and lens 3 in the shape 5a of blinds to prevent the light of the light source lamp 2 from entering the lens 3 directly, and the function of a blocker is obtained. Further, the fitting angle of each light shield plate 5 is variable and adjusted to control the quantity of irradiation light into the cavity 1.

Description

【発明の詳細な説明】 （産業上の利用分野） 本発明は全面露光方式の電子複写機等における光学系装
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 device in a full exposure type electronic copying machine or the like.

（従来技術） 従来の全面露光方式の電子複写機等における光学系装置
は第１図に示すように構成されており、図において、ａ
つはキャビティー、ａつは光源ランプ、０３はレンズ、
０４はプラテンを夫々示しているが、光源ランプαりの
光がレンズ（１３に直接入射しないようにするために照
射窓０ｏを有するブロッカ−α→が設けられている。(Prior Art) An optical system device in a conventional full-surface exposure type electronic copying machine, etc. is configured as shown in Figure 1. In the figure, a
One is the cavity, a is the light source lamp, 03 is the lens,
Reference numeral 04 indicates a platen, and in order to prevent the light from the light source lamp α from directly entering the lens (13), a blocker α→ having an irradiation window 0o is provided.

然るに、従来の装置においてはブロッカ−０９により光
の殆どがカットされているためキャビティー０１）内の
光量が不均一となり、特に図中Ａ部において光量が不足
する欠点があった。However, in the conventional device, since most of the light is blocked by the blocker 09, the amount of light inside the cavity 01) becomes non-uniform, and there is a drawback that the amount of light is insufficient, especially in the section A in the figure.

（発明の目的） 本発明の目的は上記した従来装置の欠点を解消し、光源
ランプの光がレンズに直接入射しない機能を有するのは
勿論、キャビティー内に光を均一に照射できて光量不足
のゾーンが生じたりする虞れのない電子複写機等におけ
る光学系装置を提供することにある。(Objective of the Invention) The object of the present invention is to eliminate the above-mentioned drawbacks of the conventional device, and to have the function of preventing the light from the light source lamp from directly entering the lens, as well as to uniformly irradiate the light into the cavity, resulting in an insufficient amount of light. An object of the present invention is to provide an optical system device for an electronic copying machine, etc., which is free from the risk of occurrence of zones.

（発明の構成） 本発明においては、光源ランプとレンズとの間に鏡面を
有する複数枚の遮光板がブラインド状に配置されており
、これによりランプからの光がレンズに直接入射しない
ようにしたブロッカ−の機能を有すると共に遮光板の鏡
面によりリフレクタ−の機能をも兼ね備えていることが
特徴となっている。(Structure of the Invention) In the present invention, a plurality of light shielding plates each having a mirror surface are arranged like a blind between the light source lamp and the lens, thereby preventing light from the lamp from directly entering the lens. It is characterized by having the function of a blocker and also having the function of a reflector due to the mirror surface of the light shielding plate.

（実施例） 本発明の実施例を第２図及び第３図に基づいて説明する
に、図中、（１）はキャビティー、（２）は光源ランプ
、（８）はレンズ、（４）はプラテンを夫々示し、これ
らは従来のものと同様である。(Example) An example of the present invention will be described based on FIGS. 2 and 3. In the figures, (1) is a cavity, (2) is a light source lamp, (8) is a lens, and (4) is a cavity. respectively indicate platens, which are similar to conventional ones.

本発明においては光源ランプ（２）とレンズ（３）の間
に鏡面を有する複数枚の遮光板（５）がブラインド状（
５ａ）に配置されていて、光源ランプ（２）からの光が
レンズ（３）に直接入射しないようになっており、ブロ
ッカ−の機能を備えている。また、各遮光板（５）の取
付角度が可変調節し得るようになっていてこれを調節す
ることによりキャビティー（］）内への照射光計を調節
できるようになっている。（６）は遮光板（５）を取り
付けるためのサポート、（７）は光源ランフ（２）の上
方に配置されたシェードである。In the present invention, a plurality of light shielding plates (5) having a mirror surface are arranged in the form of a blind (
5a) to prevent the light from the light source lamp (2) from directly entering the lens (3), and has a blocker function. Further, the mounting angle of each light shielding plate (5) can be variably adjusted, and by adjusting this, the irradiation light meter into the cavity ( ) can be adjusted. (6) is a support for attaching the light shielding plate (5), and (7) is a shade placed above the light source lamp (2).

第２図からも明らかなように、光源ランプ（２）はフロ
ント側（８）から見てキャビティー（１）内の左サイド
に配置されているから左サイドの光計は充分であり、第
３図に示すように、光源ランプ（２）からの光は各遮光
板（５）で反射されて右サイドのキャビティー（１）内
面に照射するようになっていて第８図に示すＢ領域にも
充分な光量が得られるようになっている。なお、遮光板
（５）に鏡面を形成するに際しては光源ランプ（２）か
らの光が反射する側の面だけで充分である。As is clear from Figure 2, the light source lamp (2) is placed on the left side of the cavity (1) when viewed from the front side (8), so the light meter on the left side is sufficient. As shown in Figure 3, the light from the light source lamp (2) is reflected by each light shielding plate (5) and illuminates the inner surface of the cavity (1) on the right side, resulting in area B shown in Figure 8. It also provides a sufficient amount of light. In addition, when forming a mirror surface on the light shielding plate (5), it is sufficient to form a mirror surface only on the side on which light from the light source lamp (2) is reflected.

（発明の効果） 本発明の電子複写機等における光学系装置によれば、光
源ランプとレンズの間には、鏡面を有する複数枚の遮光
板がブラインド状に配置されているから、光源ランプか
らの光がレンズに直接入射しないようにしたブロッカ−
の機能を備えているのは勿論、光源ランプからの光が遮
光板の鏡面に反射してキャビティー内の光量の不足して
いる領域に光を有効に送ることができ、キャビティー内
における光計の均一化を図ることができる。また、遮光
板の取付角度を調節することにより光量不足領域への光
量配分を簡単に調節することができ、この種全面露光方
式の光学系装置として最適である。(Effects of the Invention) According to the optical system device of the electronic copying machine or the like of the present invention, a plurality of light shielding plates having mirror surfaces are arranged in a blind manner between the light source lamp and the lens, so that the light source lamp can be A blocker that prevents light from directly entering the lens.
Not only does it have the function of It is possible to make the total uniformity. Furthermore, by adjusting the mounting angle of the light-shielding plate, the distribution of the amount of light to the area where the amount of light is insufficient can be easily adjusted, making it ideal for this type of full-surface exposure type optical system device.

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

第１図は従来の電子複写機における全面露光方式の光学
系装置を示す路線的な断面図、第２図及び第３図は本発
明に係る電子複写機等における光学系装置の実施例を示
し、第２図は一部除去した斜視図、第８図は路線的な断
面図である。 符号説明 ＋１１・・・・・・キャビティー　　（２）・・・・・
・光源ランプ（８）・・・・・・レンズ　　　　　（４
）・・・・・・プラテン（５）・・・・・・遮光板　　
　　　（６）・・・・・・サポート（７）・・・・・・
シェード　　　　（８）・・・・・・フロント側第１図 第２図 第３区 ：末ｊ・FIG. 1 is a cross-sectional view showing a full exposure type optical system device in a conventional electronic copying machine, and FIGS. 2 and 3 show an embodiment of the optical system device in an electronic copying machine, etc. according to the present invention. , FIG. 2 is a partially removed perspective view, and FIG. 8 is a line sectional view. Code explanation +11...Cavity (2)...
・Light source lamp (8)...Lens (4
)...Platen (5)... Light shielding plate
(6)...Support (7)...
Shade (8)...Front side Fig. 1 Fig. 2 Fig. 3 section: end

Claims (2)

【特許請求の範囲】[Claims] （１）光源ランプの光がレンズに直接入射しないように
構成された電子複写機等における全面露光方式の光学系
装置において、上記光源ランプとレンズとの間に、鏡面
を有する複数枚の遮光板がブラインド状に配置されてい
て、光源ランプからの光がキャビティー内に均一に照射
されるように構成されていることを特徴とする電子複写
機等における光学系装置。(1) In a full exposure type optical system device such as an electronic copying machine configured so that the light of the light source lamp does not directly enter the lens, a plurality of light shielding plates having a mirror surface are provided between the light source lamp and the lens. 1. An optical system device for an electronic copying machine or the like, characterized in that the light source lamps are arranged in a blind manner so that light from a light source lamp is uniformly irradiated into the cavity. （２）遮光板の取付角度が可変詞節し得るように構成さ
れていることを特徴とする特許請求の範囲第１項記載の
電子複写機等における光学系装置。(2) An optical system device for an electronic copying machine or the like as set forth in claim 1, wherein the mounting angle of the light shielding plate is configured to be variable.
JP8908983A 1983-05-23 1983-05-23 Optical system device of electrophotographic copying machine or the like Pending JPS59224834A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8908983A JPS59224834A (en) 1983-05-23 1983-05-23 Optical system device of electrophotographic copying machine or the like

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8908983A JPS59224834A (en) 1983-05-23 1983-05-23 Optical system device of electrophotographic copying machine or the like

Publications (1)

Publication Number Publication Date
JPS59224834A true JPS59224834A (en) 1984-12-17

Family

ID=13961144

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8908983A Pending JPS59224834A (en) 1983-05-23 1983-05-23 Optical system device of electrophotographic copying machine or the like

Country Status (1)

Country Link
JP (1) JPS59224834A (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5529899A (en) * 1978-08-02 1980-03-03 Eastman Kodak Co Illuminating device for use in photograph printer
JPS55115058A (en) * 1979-02-26 1980-09-04 Xerox Corp Illuminator for copier
JPS59166933A (en) * 1983-03-14 1984-09-20 Fuji Xerox Co Ltd Illuminating device in full-surface exposing device of copying machine

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5529899A (en) * 1978-08-02 1980-03-03 Eastman Kodak Co Illuminating device for use in photograph printer
JPS55115058A (en) * 1979-02-26 1980-09-04 Xerox Corp Illuminator for copier
JPS59166933A (en) * 1983-03-14 1984-09-20 Fuji Xerox Co Ltd Illuminating device in full-surface exposing device of copying machine

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