JPS63109938U - - Google Patents
Info
- Publication number
- JPS63109938U JPS63109938U JP94587U JP94587U JPS63109938U JP S63109938 U JPS63109938 U JP S63109938U JP 94587 U JP94587 U JP 94587U JP 94587 U JP94587 U JP 94587U JP S63109938 U JPS63109938 U JP S63109938U
- Authority
- JP
- Japan
- Prior art keywords
- moving means
- magnification
- engaging member
- moving
- lens groups
- 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.)
- Granted
Links
- 230000003287 optical effect Effects 0.000 claims description 5
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Exposure Or Original Feeding In Electrophotography (AREA)
- Variable Magnification In Projection-Type Copying Machines (AREA)
Description
第１図はこの考案の変倍光学装置のズームレン
ズ系の移動を説明するための概略図、第２図は変
倍光学装置の分解斜視図、第３図は、等倍率時の
状態を示す図、第４図は拡大倍率時の状態を示す
図、第５図は縮小倍率時の状態を示す図である。
１……ズームレンズ系、１１……移動台、１５
……第１レンズ群、１６……第２レンズ群、２７
，２８……第１孔部、３３……移動板、３５，３
６……斜進溝、４２……ズームカム板、４３……
ズームカム。
Fig. 1 is a schematic diagram for explaining the movement of the zoom lens system of the variable magnification optical device of this invention, Fig. 2 is an exploded perspective view of the variable magnification optical device, and Fig. 3 shows the state at the same magnification. FIG. 4 is a diagram showing the state at the time of enlargement, and FIG. 5 is a diagram showing the state at the time of reduction. 1...Zoom lens system, 11...Moving table, 15
...First lens group, 16...Second lens group, 27
, 28... first hole, 33... moving plate, 35, 3
6... Diagonal advance groove, 42... Zoom cam plate, 43...
zoom cam.
Claims (1)
くとも一部の対称レンズ群の間隔を変えることで
変倍を行う変倍光学装置において、前記対称レン
ズ群に各々設けられる第１係合部材と、前記レン
ズ群全体を前記レンズ群の光軸と所定角度をなし
た方向へ移動させ縮小、等倍及び拡大の変倍を行
う第１移動手段と、前記第１移動手段の移動に応
じ案内手段と係合することにより前記第１係合部
材に対して相対的に移動する第２移動手段と、前
記第１係合部材と係合し、前記第１移動手段が等
倍位置から縮小位置へ移動する際と等倍位置から
拡大位置へ移動する際に前記第１係合部材と係合
する部分が共通し、前記対称レンズ群の間隔を変
位させるように前記第２移動手段に設けられた第
２係合部材とを有することを特徴とする変倍光学
装置。 In a variable magnification optical device that performs zooming by changing the distance between at least some of the symmetrical lens groups among a plurality of symmetrically arranged lens groups, a first engaging member provided on each of the symmetrical lens groups; a first moving means for moving the entire lens group in a direction forming a predetermined angle with the optical axis of the lens group to change the magnification of reduction, equal magnification, and enlargement; and a guide means according to the movement of the first movement means. a second moving means that moves relative to the first engaging member when engaged; and a second moving means that engages with the first engaging member and moves the first moving means from a normal magnification position to a reduced position. A second moving means provided on the second moving means has a common part that engages with the first engaging member when moving from the same magnification position to the enlarged position, and displaces the interval between the symmetrical lens groups. A variable power optical device comprising two engaging members.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987000945U JP2515624Y2 (en) | 1987-01-09 | 1987-01-09 | Variable magnification optical device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987000945U JP2515624Y2 (en) | 1987-01-09 | 1987-01-09 | Variable magnification optical device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63109938U true JPS63109938U (en) | 1988-07-15 |
| JP2515624Y2 JP2515624Y2 (en) | 1996-10-30 |
Family
ID=30778389
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987000945U Expired - Lifetime JP2515624Y2 (en) | 1987-01-09 | 1987-01-09 | Variable magnification optical device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2515624Y2 (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58220135A (en) * | 1982-06-17 | 1983-12-21 | Canon Inc | Optical device enabled to change magnification |
| JPS6010214A (en) * | 1983-06-30 | 1985-01-19 | Tokyo Optical Co Ltd | Variable power optical device |
| JPS6057335A (en) * | 1983-09-08 | 1985-04-03 | Asahi Optical Co Ltd | Variable power device of copying machine |
| JPS6189842U (en) * | 1984-11-20 | 1986-06-11 |
-
1987
- 1987-01-09 JP JP1987000945U patent/JP2515624Y2/en not_active Expired - Lifetime
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58220135A (en) * | 1982-06-17 | 1983-12-21 | Canon Inc | Optical device enabled to change magnification |
| JPS6010214A (en) * | 1983-06-30 | 1985-01-19 | Tokyo Optical Co Ltd | Variable power optical device |
| JPS6057335A (en) * | 1983-09-08 | 1985-04-03 | Asahi Optical Co Ltd | Variable power device of copying machine |
| JPS6189842U (en) * | 1984-11-20 | 1986-06-11 |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2515624Y2 (en) | 1996-10-30 |
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