JPS6318011Y2 - - Google Patents
Info
- Publication number
- JPS6318011Y2 JPS6318011Y2 JP1981131115U JP13111581U JPS6318011Y2 JP S6318011 Y2 JPS6318011 Y2 JP S6318011Y2 JP 1981131115 U JP1981131115 U JP 1981131115U JP 13111581 U JP13111581 U JP 13111581U JP S6318011 Y2 JPS6318011 Y2 JP S6318011Y2
- Authority
- JP
- Japan
- Prior art keywords
- support hole
- additional
- lens
- lenses
- main
- 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.)
- Expired
Links
- 230000003287 optical effect Effects 0.000 claims description 25
- 230000007246 mechanism Effects 0.000 claims description 6
- 238000003384 imaging method Methods 0.000 description 4
- 230000007257 malfunction Effects 0.000 description 1
Landscapes
- Lens Barrels (AREA)
- Exposure Or Original Feeding In Electrophotography (AREA)
- Variable Magnification In Projection-Type Copying Machines (AREA)
Description
【考案の詳細な説明】 本考案は光学装置の変倍機構に関する。[Detailed explanation of the idea] The present invention relates to a variable power mechanism for an optical device.
従来の光学装置の変倍機構としては、結像レン
ズや反射ミラーを移動させて光路長を変化させる
ものが知られているが、光学部材の移動量が大き
く光学装置のコンパクト化、構造の簡素化が実現
しにくい欠点を有する。 Conventional magnification mechanisms for optical devices are known to change the optical path length by moving the imaging lens or reflection mirror, but the amount of movement of the optical members is large, making it difficult to make the optical device more compact and have a simpler structure. It has the disadvantage that it is difficult to realize.
本考案は上記従来の欠点を解消した光学装置の
変倍機構を提供することを目的とするものであつ
て、その構成上の特徴とするところは、光軸上を
移動可能な主レンズと、装置本体により該主レン
ズの光軸に沿つて移動可能に支持され、主レンズ
を支持すめための主レンズハウジングと、第１支
持孔、第１回転軸、第１当接部とを備え該主レン
ズハウジング上の附加レンズ共通回転軸線を中心
に回転する第１附加レンズ枠部と、第２支持孔、
第２回転軸、第２当接部とを備え該主レンズハウ
ジング上の上記附加レンズ共通回転軸線を中心に
回転する第２附加レンズ枠部と、第１及び第２附
加レンズ枠部にそれぞれ支持される第１及び第２
附加レンズと、上記第１および第２当接部に当接
し上記第１及び第２附加レンズを上記光軸上に順
次挿脱させるように装置本体に取付けられた第１
及び第２カム部材とを有し、上記主レンズハウジ
ングは第３支持孔と第４支持孔を備え、上記第１
回転軸は上記第２支持孔及び上記第３支持孔を挿
入されかつ上記第１当接部を介して上記第１カム
部材と係合し、また上記第２回転軸は上記第１支
持孔及び上記第４支持孔に挿入されかつ上記第２
当接部を介して上記第２カム部材と係合されてい
ることである。本考案は以上のように構成される
から、簡易な構造で安価かつ故障・誤動作のおそ
れが少なく、また光学装置のコンパクト化に適し
たものである。 The present invention aims to provide a variable power mechanism for an optical device that eliminates the above-mentioned conventional drawbacks, and its structural features include a main lens movable on the optical axis; The main lens housing is movably supported by the device main body along the optical axis of the main lens and includes a main lens housing for supporting the main lens, a first support hole, a first rotation axis, and a first contact part. a first additional lens frame portion that rotates around a common rotational axis of the additional lenses on the lens housing; a second support hole;
A second additional lens frame portion that includes a second rotation axis and a second contact portion and rotates around the common rotation axis of the additional lens on the main lens housing, and is supported by the first and second additional lens frame portions, respectively. The first and second
an additional lens, and a first lens attached to the apparatus main body so as to contact the first and second contact portions and sequentially insert and remove the first and second additional lenses on the optical axis.
and a second cam member, the main lens housing has a third support hole and a fourth support hole, and the main lens housing has a third support hole and a fourth support hole, and the first
The rotating shaft is inserted into the second support hole and the third support hole and engages with the first cam member via the first contact portion, and the second rotating shaft is inserted into the first support hole and the third support hole. inserted into the fourth support hole and the second
The second cam member is engaged with the second cam member via the contact portion. Since the present invention is constructed as described above, it has a simple structure, is inexpensive, has little risk of failure or malfunction, and is suitable for making optical devices more compact.
以下本考案の実施例を図にもとづいて説明す
る。光学装置の変倍機構１は、図に示すように、
光学装置本体２、光学装置本体２内を光軸４の方
向に摺動自在に支持された主レンズ５のハウジン
グ６、主レンズハウジング６に取付けられたラツ
ク８、ラツク８に係合するピニオン１０、光学装
置本体２に取付けられてピニオン１０を回動させ
るステツプモータ１２、主レンズハウジング６か
ら光軸４の方向に突出したアーム１４及びアーム
１５に回動自在に取付けられた第１附加レンズ１
６及び第２附加レンズ１８、主レンズハウジング
６から突出して第１附加レンズ１６の枠１６′に
当接する第１ストツパ−３４を有するアーム１
４、レンズハウジング６から突出して第２附加レ
ンズ１８の枠１８′に当接する第２ストツパー３
６を有するアーム１５と光学装置本体２から突出
しカム作用を有する第１固定アーム２０及び第２
固定アーム２２とからなる。第１ローラ２６は、
アーム１４に設けられた第３支持孔及び第２附加
レンズ枠１８′に設けられた第２支持孔に挿入さ
れ、第１及び第２附加レンズ枠１６′，１８′を回
転自在に支持する第１回転軸たる軸２４によつて
第１附加レンズ枠１６′に連結される。第２ロー
ラ２８は、アーム１５に設けられた第４支持孔及
び第１附加レンズ枠１６′に設けられた第１支持
孔に挿入され、第１及び第２附加レンズ枠１６′，
１８′を回転自在に支持する第２回転軸たる軸２
５によつて第２附加レンズ枠１８′に連結される。 Embodiments of the present invention will be described below based on the drawings. The variable magnification mechanism 1 of the optical device is, as shown in the figure,
an optical device main body 2, a housing 6 for a main lens 5 supported slidably in the direction of the optical axis 4 within the optical device main body 2, a rack 8 attached to the main lens housing 6, and a pinion 10 that engages with the rack 8. , a step motor 12 attached to the optical device main body 2 to rotate the pinion 10, an arm 14 protruding from the main lens housing 6 in the direction of the optical axis 4, and a first additional lens 1 rotatably attached to the arm 15.
6 and a second additional lens 18, an arm 1 having a first stopper 34 that protrudes from the main lens housing 6 and abuts against the frame 16' of the first additional lens 16;
4. A second stopper 3 that protrudes from the lens housing 6 and comes into contact with the frame 18' of the second additional lens 18.
6, a first fixed arm 20 protruding from the optical device main body 2, and a second fixed arm 20 having a cam function.
It consists of a fixed arm 22. The first roller 26 is
A third support hole is inserted into a third support hole provided in the arm 14 and a second support hole provided in the second additional lens frame 18', and rotatably supports the first and second additional lens frames 16' and 18'. It is connected to the first additional lens frame 16' by a shaft 24 which is an axis of one rotation. The second roller 28 is inserted into a fourth support hole provided in the arm 15 and a first support hole provided in the first additional lens frame 16', and is inserted into the first and second additional lens frames 16',
18', which is a second rotating shaft that rotatably supports the shaft 2;
5 to the second additional lens frame 18'.
ここで、第１ローラ２６は第１当接部に相当
し、第２ローラ２８は第２当接部に相当し、第１
支持孔、軸２４及び第１ローラ２６が第１附加レ
ンズ枠部に相当し、第２支持孔、軸２５及び第２
ローラ２８が、第２附加レンズ部にそれぞれ相当
する。また、第１固定アーム２０及び第２固定ア
ーム２２はカム部材の一部を形成する。また、各
レンズ枠１６′，１８′は、バネ３０，３１によつ
て各ローラ２６，２８が各固定アーム２０，２２
に圧接する方向に付勢されている。アーム１４，
１５には第１附加レンズ枠１６′、第２附加レン
ズ枠１８′を垂直状態に維持する第１ストツパー
３４、第２ストツパー３６が設けられている。 Here, the first roller 26 corresponds to a first contact portion, the second roller 28 corresponds to a second contact portion, and the first roller 28 corresponds to a first contact portion.
The support hole, the shaft 24 and the first roller 26 correspond to the first additional lens frame, and the second support hole, the shaft 25 and the second roller correspond to the first additional lens frame.
The rollers 28 each correspond to a second additional lens section. Further, the first fixed arm 20 and the second fixed arm 22 form part of a cam member. Further, each lens frame 16', 18' is connected to each fixed arm 20, 22 by each roller 26, 28 by a spring 30, 31.
is biased in the direction of pressure contact. arm 14,
15 is provided with a first stopper 34 and a second stopper 36 for maintaining the first additional lens frame 16' and the second additional lens frame 18' in a vertical state.
以上の構成において、基準倍率は、主レンズハ
ウジング６が図に示す位置より後方の基準位置に
移動させられて、第１固定アーム２０の水平部が
第１附加レンズ枠１６′を押上げ、第２固定アー
ム２２の水平部が第２附加レンズ枠１８′を押上
げる。従つて、基準倍率の結像レンズは基準位置
に配置された主レンズ５のみによつて構成され
る。次に、第１変倍は、ステツプモータ１２が回
転して主レンズハウジング６が図に示す第１位置
に移動し、第１ローラ２６が第１固定アーム２０
の水平部からはずれ、第１ストツパー３４の作用
により第１附加レンズ１６が光軸４上に垂直に配
置される。第２固定アーム２２の水平部に相変ら
ず第２附加レンズ枠１８′を押上げている。従つ
て、第１変倍の結像レンズは第１位置に配置され
た主レンズ５と第１附加レンズ１６とによつて構
成される。次に、第２変倍は、ステツプモータ１
２がさらに回転して主レンズハウジング６が、図
に示すよりも前方の第２位置に移動する。第１附
加レンズ１６は相変らず第１ストツパー３４の働
きにより光軸４上に垂直に配置されていて、か
つ、第２ローラ２８が第２固定アーム２２の水平
部からはずれ、第２ストツパー３６の作用により
第２附加レンズ１８が光軸４上に垂直に配置され
る。従つて、第２変倍の結像レンズは第２位置に
配置された主レンズ５と第１附加レンズ１６と第
２附加レンズ１８とによつて構成される。 In the above configuration, the reference magnification is determined by moving the main lens housing 6 to a reference position rearward from the position shown in the figure, and causing the horizontal portion of the first fixed arm 20 to push up the first additional lens frame 16' and The horizontal portion of the second fixed arm 22 pushes up the second additional lens frame 18'. Therefore, the imaging lens with the standard magnification is constituted by only the main lens 5 placed at the standard position. Next, in the first magnification change, the step motor 12 rotates to move the main lens housing 6 to the first position shown in the figure, and the first roller 26 moves to the first fixed arm 20.
The first additional lens 16 is disposed vertically on the optical axis 4 by the action of the first stopper 34. The second additional lens frame 18' is still pushed up on the horizontal part of the second fixed arm 22. Therefore, the first variable magnification imaging lens is constituted by the main lens 5 and the first additional lens 16 arranged at the first position. Next, for the second magnification change, the step motor 1
2 further rotates to move the main lens housing 6 to a second position further forward than shown in the figure. The first additional lens 16 is still vertically disposed on the optical axis 4 due to the action of the first stopper 34, and the second roller 28 is removed from the horizontal part of the second fixed arm 22, and the second stopper 34 Due to this action, the second additional lens 18 is arranged perpendicularly on the optical axis 4. Therefore, the second variable magnification imaging lens is constituted by the main lens 5, the first additional lens 16, and the second additional lens 18, which are arranged at the second position.
第２変倍から第１変倍、基準倍率への変更は、
ステツプモータ１２を逆回転させることにより得
られる。 To change from 2nd variable magnification to 1st variable magnification and standard magnification,
This is obtained by rotating the step motor 12 in the reverse direction.
上記実施例は３種類の倍率を得るものであつた
が、２種あるいは４種以上の倍率を得る実施も可
能であることは言うまでもない。 Although the above embodiment provides three types of magnification, it goes without saying that it is also possible to obtain two or four or more types of magnification.
図は本考案の実施例を斜視図である。
２……光学装置本体、４……光軸、５……主レ
ンズ、６……主レンズハウジング、８……ラツ
ク、１０……ピニオン、１２……ステツプモー
タ、１６……第１附加レンズ、１８……第２附加
レンズ、２０……第１固定アーム、２２……第２
固定アーム。
The figure is a perspective view of an embodiment of the present invention. 2... Optical device main body, 4... Optical axis, 5... Main lens, 6... Main lens housing, 8... Rack, 10... Pinion, 12... Step motor, 16... First additional lens, 18...Second additional lens, 20...First fixed arm, 22...Second
Fixed arm.
Claims (1)
に沿つて移動可能に支持され、主レンズを支持す
るための主レンズハウジングと、第１支持孔、第
１回転軸、第１当接部とを備え該主レンズハウジ
ング上の附加レンズ共通回転軸線を中心に回転す
る第１附加レンズ枠部と、第２支持孔、第２回転
軸、第２当接部とを備え該主レンズハウジング上
の上記附加レンズ共通回転軸線を中心に回転する
第２附加レンズ枠部と、第１及び第２附加レンズ
枠部にそれぞれ支持される第１及び第２附加レン
ズと、上記第１および第２当接部に当接し上記第
１及び第２附加レンズを上記光軸上に順次挿脱さ
せるように装置本体に取付けられた第１及び第２
カム部材とを有し、上記主レンズハウジングは第
３支持孔と第４支持孔を備え、上記第１回転軸は
上記第２支持孔及び上記第３支持孔に挿入されか
つ上記第１当接部を介して上記第１カム部材と係
合し、また上記第２回転軸は上記第１支持孔及び
上記第４支持孔に挿入されかつ上記第２当接部を
介して上記第２カム部材と係合されていることを
特徴とする光学装置の変倍機構。 a main lens; a main lens housing movably supported by the device main body along the optical axis of the main lens; a first support hole; a first rotation axis; a first additional lens frame rotating around a common rotational axis of the additional lenses on the main lens housing; a second support hole, a second rotation axis, and a second abutting portion; a second additional lens frame that rotates around the common rotational axis of the additional lens; first and second additional lenses that are supported by the first and second additional lens frames, respectively; and the first and second abutting lenses. first and second lenses attached to the main body of the device so as to be in contact with the first and second additional lenses and to sequentially insert and remove the first and second additional lenses on the optical axis;
a cam member, the main lens housing includes a third support hole and a fourth support hole, and the first rotating shaft is inserted into the second support hole and the third support hole, and the first abutting shaft is inserted into the second support hole and the third support hole. The second rotating shaft is inserted into the first support hole and the fourth support hole, and is engaged with the second cam member through the second abutting portion. A variable power mechanism of an optical device, characterized in that the variable magnification mechanism is engaged with.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13111581U JPS5836708U (en) | 1981-09-03 | 1981-09-03 | Magnification mechanism of optical device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13111581U JPS5836708U (en) | 1981-09-03 | 1981-09-03 | Magnification mechanism of optical device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5836708U JPS5836708U (en) | 1983-03-10 |
| JPS6318011Y2 true JPS6318011Y2 (en) | 1988-05-20 |
Family
ID=29924709
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13111581U Granted JPS5836708U (en) | 1981-09-03 | 1981-09-03 | Magnification mechanism of optical device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5836708U (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0410603Y2 (en) * | 1984-10-09 | 1992-03-16 | ||
| JPH0632849Y2 (en) * | 1988-05-18 | 1994-08-31 | 東洋エアゾール工業株式会社 | Aerosol nozzle |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4832739A (en) * | 1971-08-31 | 1973-05-02 |
-
1981
- 1981-09-03 JP JP13111581U patent/JPS5836708U/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4832739A (en) * | 1971-08-31 | 1973-05-02 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5836708U (en) | 1983-03-10 |
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