JPH01172771U - - Google Patents
Info
- Publication number
- JPH01172771U JPH01172771U JP6982088U JP6982088U JPH01172771U JP H01172771 U JPH01172771 U JP H01172771U JP 6982088 U JP6982088 U JP 6982088U JP 6982088 U JP6982088 U JP 6982088U JP H01172771 U JPH01172771 U JP H01172771U
- Authority
- JP
- Japan
- Prior art keywords
- carriage
- magnification
- position detection
- reference position
- lens
- 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
- 238000001514 detection method Methods 0.000 claims description 6
- 238000003384 imaging method Methods 0.000 claims description 4
- 230000003287 optical effect Effects 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 5
- 239000011521 glass Substances 0.000 description 1
- 108091008695 photoreceptors Proteins 0.000 description 1
Landscapes
- Facsimile Scanning Arrangements (AREA)
- Exposure Or Original Feeding In Electrophotography (AREA)
- Variable Magnification In Projection-Type Copying Machines (AREA)
Description
第１図は、本考案の１実施例を要部のみ略示す
る図、第２図は、実施例を説明するためのフロー
図、第３図は、変倍の原理を説明するための図、
第４図は、変倍光学系の１例を説明するための図
、第５図は、従来技術とその問題点を説明するた
めの図である。
１０……結像レンズ、１２……原稿ガラス、１
６，１８……ミラー、２０，２１……可変位ミラ
ー、２６……感光体、３２……レンズブラケツト
用の基準位置検出手段としての基準位置検出セン
サー、３４……ステツピング方式のモータ、２９
Ａ，２９Ｂ……ストツパー。
Fig. 1 is a diagram schematically showing only the main parts of an embodiment of the present invention, Fig. 2 is a flow diagram for explaining the embodiment, and Fig. 3 is a diagram for explaining the principle of variable magnification. ,
FIG. 4 is a diagram for explaining an example of a variable magnification optical system, and FIG. 5 is a diagram for explaining the prior art and its problems. 10...Imaging lens, 12...Original glass, 1
6, 18...Mirror, 20, 21...Variable mirror, 26...Photoreceptor, 32...Reference position detection sensor as reference position detection means for lens bracket, 34...Stepping type motor, 29
A, 29B...stopper.
Claims (1)
ーもしくは撮像素子の変位により行ない、倍率合
わせを結像レンズの変位で行なう方式の、変倍可
能な複写機に於いて、 結像レンズを保持するレンズブラケツトと、ミ
ラーもしくは撮像素子を保持するキヤリジと、駆
動用のモーターと、結像レンズ用の基準位置検出
手段と、キヤリジ用の基準位置検出手段と、１対
のストツパーと、制御手段とを有し、 上記レンズブラケツトに対する駆動力と上記キ
ヤリジに対する駆動力の一方を他方に比して十分
に大きく設定し、 レンズブラケツトとキヤリジの一方に上記駆動
用のモーターを固設するとともに、上記モーター
に駆動プーリーを設け、この駆動プーリーに巻き
掛けた閉ループ状ワイヤーに他方を固定し、上記
レンズブラケツト、キヤリジの内の一方の移動範
囲を上記１対のストツパーで制限し、 上記モーターの駆動を制御手段により制御し、 上記各基準位置検出手段による位置検出に基づ
き、所望の倍率の光学配置を実現するようにした
ことを特徴とする変倍装置。[Scope of Claim for Utility Model Registration] In a variable-magnification copying machine, in which the conjugate length is adjusted by displacing a mirror or an image sensor, and the magnification is adjusted by displacing an imaging lens when varying the copy magnification. a lens bracket for holding the imaging lens, a carriage for holding the mirror or the image sensor, a driving motor, a reference position detection means for the imaging lens, and a reference position detection means for the carriage. a stopper and a control means, one of the driving force for the lens bracket and the driving force for the carriage is set sufficiently larger than the other, and the driving motor is mounted on one of the lens bracket and the carriage. At the same time, a drive pulley is provided on the motor, the other is fixed to a closed loop wire wound around the drive pulley, and the movement range of one of the lens bracket and carriage is limited by the pair of stoppers. A variable magnification device, characterized in that the drive of the motor is controlled by a control means, and an optical arrangement with a desired magnification is realized based on position detection by each of the reference position detection means.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6982088U JPH01172771U (en) | 1988-05-26 | 1988-05-26 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6982088U JPH01172771U (en) | 1988-05-26 | 1988-05-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01172771U true JPH01172771U (en) | 1989-12-07 |
Family
ID=31295093
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6982088U Pending JPH01172771U (en) | 1988-05-26 | 1988-05-26 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01172771U (en) |
-
1988
- 1988-05-26 JP JP6982088U patent/JPH01172771U/ja active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPH01172771U (en) | ||
| US4766466A (en) | Variable magnification projecting device | |
| JPH01172064U (en) | ||
| JPH0542428Y2 (en) | ||
| JPH0169224U (en) | ||
| JPS6449946U (en) | ||
| JPS5848659Y2 (en) | Magnification conversion device for scanning exposure optical system | |
| JPS6138639U (en) | Copy machine magnification mechanism | |
| JPS61167641U (en) | ||
| JPS632956U (en) | ||
| JPS6138629U (en) | Copy machine magnification mechanism | |
| JPH0358640U (en) | ||
| JPS6227700B2 (en) | ||
| JP3569070B2 (en) | Image reading device | |
| JPS6339224U (en) | ||
| JPH0467645U (en) | ||
| JPH0368366B2 (en) | ||
| JPS6436850U (en) | ||
| JPS6284044U (en) | ||
| JPH0481140U (en) | ||
| JPS6394428U (en) | ||
| JPH0375860B2 (en) | ||
| JPS6096656U (en) | Copying machine lens aperture drive device | |
| JPS6138633U (en) | Copy machine magnification mechanism | |
| JPS6138635U (en) | Copy machine magnification mechanism |