JPS6432540U - - Google Patents
Info
- Publication number
- JPS6432540U JPS6432540U JP12737887U JP12737887U JPS6432540U JP S6432540 U JPS6432540 U JP S6432540U JP 12737887 U JP12737887 U JP 12737887U JP 12737887 U JP12737887 U JP 12737887U JP S6432540 U JPS6432540 U JP S6432540U
- Authority
- JP
- Japan
- Prior art keywords
- fresnel lens
- lens unit
- enlarged
- original
- copying mechanism
- 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
- 230000003287 optical effect Effects 0.000 claims 3
- 108091008695 photoreceptors Proteins 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Variable Magnification In Projection-Type Copying Machines (AREA)
Description
第１図は本考案の１実施例の概略構成図。第２
図は本考案に用いたスリツト方向にフレネル群を
有するシリンドリカルフレネルレンズの平面図。
第３図は本考案に用いた走査方向にフレネル群を
有するシリンドリカルフレネルレンズの平面図。
２……原稿台、４……露光ランプ、４Ａ……反
射鏡、４Ｂ……スリツト、５，６，７……ミラー
、８……レンズ、４０……露光位置、１１０……
拡大投影装置、１１２……小型透明原稿載置枠、
１１３……照射ランプ、１１４……反射鏡、１１
５……投影ミラー、１２４……フレーム、１２６
，１２８……支軸、１３１，１３２……シリンド
リカルフレネルレンズ。
FIG. 1 is a schematic diagram of an embodiment of the present invention. Second
The figure is a plan view of a cylindrical Fresnel lens having Fresnel groups in the slit direction used in the present invention.
FIG. 3 is a plan view of a cylindrical Fresnel lens having a Fresnel group in the scanning direction used in the present invention. 2...Original table, 4...Exposure lamp, 4A...Reflector, 4B...Slit, 5, 6, 7...Mirror, 8...Lens, 40...Exposure position, 110...
Enlargement projection device, 112...Small transparent document placement frame,
113...Irradiation lamp, 114...Reflector, 11
5... Projection mirror, 124... Frame, 126
, 128... Support shaft, 131, 132... Cylindrical Fresnel lens.
Claims (1)
射鏡を含むフレネルレンズユニツトを載置し該フ
レネルレンズ上に付属の小型透明原稿の拡大投影
レンズ系からの拡大像を結像させ該像を前記複写
装置の主光学系によつて感光体上に像形成させる
ことも可能にした大型原稿複写機構及び小型透明
原稿の拡大複写機構とを有し、前記大型原稿複写
機構の単独作動時に前記フレネルレンズユニツト
を前記原稿台近傍より退避して小型透明原稿の拡
大複写機構の光学系の機能を停止させ、前記小型
透明原稿の拡大複写機構の作動時には前記フレネ
ルレンズユニツトが前記原稿台近傍の前記拡大複
写機構の光学系形成域に設定されるようにしたこ
とを特徴とするフレネルレンズユニツト装着複写
装置。 A Fresnel lens unit including a reflecting mirror is placed near the document table of a slit scanning exposure type copying device, and an enlarged image of an attached small transparent original from an enlarged projection lens system is formed on the Fresnel lens, and the image is copied as described above. It has a large original copying mechanism and a small transparent original enlargement copying mechanism that enable the main optical system of the apparatus to form an image on a photoreceptor, and when the large original copying mechanism operates independently, the Fresnel lens unit is retracted from near the original table to stop the function of the optical system of the enlarged copying mechanism for small transparent originals, and when the enlarged copying mechanism for small transparent originals is activated, the Fresnel lens unit is moved away from the enlarged copying mechanism near the original table. 1. A copying machine equipped with a Fresnel lens unit, characterized in that the Fresnel lens unit is set in an optical system forming area.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12737887U JPS6432540U (en) | 1987-08-20 | 1987-08-20 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12737887U JPS6432540U (en) | 1987-08-20 | 1987-08-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6432540U true JPS6432540U (en) | 1989-03-01 |
Family
ID=31379759
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12737887U Pending JPS6432540U (en) | 1987-08-20 | 1987-08-20 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6432540U (en) |
-
1987
- 1987-08-20 JP JP12737887U patent/JPS6432540U/ja active Pending
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