JPS60163437U - Magnifying projection device - Google Patents
Magnifying projection deviceInfo
- Publication number
- JPS60163437U JPS60163437U JP2871084U JP2871084U JPS60163437U JP S60163437 U JPS60163437 U JP S60163437U JP 2871084 U JP2871084 U JP 2871084U JP 2871084 U JP2871084 U JP 2871084U JP S60163437 U JPS60163437 U JP S60163437U
- Authority
- JP
- Japan
- Prior art keywords
- turret
- projection
- lens
- gear
- rotation
- 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
Landscapes
- Projection Apparatus (AREA)
- Variable Magnification In Projection-Type Copying Machines (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図および第２図はそれぞれこの考案の拡大投影装置
を適用したマイクロフィルムリーダープリンターの外観
斜視図および概略図、第３図はその一実施例の要部正面
図、第４図は第３図のＩＶ−■線矢視断面図、第５図は
レンズ切換動作を示す要部正面図である。
２・・・キャリア、４・・・架台、５・・・光源ユニッ
ト、６ａ、６ｂ、６ｃ・・・投影レンズ、？、 ８．
１０−・・ミラー、９・・・スクリーン、１１・・・
感光ユニット、１２・・・ターレット、１４・・・レン
ス敢付台、１７ａ＝ １７ｂｙ １７ｃ・・・レン
ズギヤ、１８・・・アイドルギヤ、２０・・・モータ、
２１・・・モータギヤ、２２・・・第２アイドルギヤ（
駆動ギヤ）、２３・・・円板カム、：ｉ４ａ、２４ｂｔ
２４ｃ”−係合溝（操出部）、（２５・・・ベアリン
グ、２６・・・レンズ切換用レバー、２７・・・引張り
ばね、２８・・・ソレノイド、）回転制動部材、２９・
・・内胴、３０・・・鏡胴。
−第１図
第２図1 and 2 are respectively an external perspective view and a schematic view of a microfilm reader printer to which the magnifying projection device of this invention is applied, FIG. 3 is a front view of main parts of an embodiment thereof, and FIG. FIG. 5 is a cross-sectional view taken along the line IV-■ in the figure, and a front view of the main part showing the lens switching operation. 2... Carrier, 4... Frame, 5... Light source unit, 6a, 6b, 6c... Projection lens, ? , 8.
10-...Mirror, 9...Screen, 11...
Photosensitive unit, 12... Turret, 14... Lens attachment stand, 17a = 17by 17c... Lens gear, 18... Idle gear, 20... Motor,
21...Motor gear, 22...Second idle gear (
drive gear), 23... disc cam, :i4a, 24bt
24c"-engaging groove (extrusion part), (25... bearing, 26... lens switching lever, 27... tension spring, 28... solenoid,) rotational braking member, 29.
...Inner barrel, 30... Lens barrel. -Figure 1Figure 2
Claims (1)
率を変更してマイクロフィルムの画像を拡大投影する拡
大投影装置において、 焦点調整用レンズギヤをそれぞれ有する複数の投影゛レ
ンズを回転中心から等距離離れた位置に保持したターレ
ットと、 このターレットの回転中心に軸支され前記各レンズギヤ
と噛合するアイドルギヤと、 このアイドルギヤと噛合しモータにより駆動さ−れる駆
動ギヤと、 □前記各投影レンズに対応させて前記ターレットに分設
した係止部と、 前記ターレットの回転域内に進出しうるように進退自在
に設けられ、進出状態で前記係止部の１つと干渉して対
応する投影レンズが投影位置に（パる回転位置にターレ
ットを制止させ名回転制動部材とを備え、 前記ターレットの回転トルクを前記レンズギヤの回転ト
ルクよりも小さく設定したことを特徴と■ する拡大投影装置。[Scope of Claim for Utility Model Registration] In an enlargement projection device that enlarges and projects an image on a microfilm by changing the projection magnification by switching and setting a plurality of projection lenses, a plurality of projection lenses each having a focus adjustment lens gear are provided. A turret held at a position equidistant from the center of rotation; an idle gear that is pivotally supported at the center of rotation of the turret and meshes with each of the lens gears; a drive gear that meshes with the idle gear and is driven by a motor; A locking portion is separately provided on the turret in correspondence with each of the projection lenses, and a locking portion is provided so as to be movable forward and backward so as to be able to advance into the rotation range of the turret, and in the advanced state, it interferes with one of the locking portions. 2. An enlarged projection device characterized in that the projection lens is provided with a rotation braking member for stopping a turret at a rotational position, and the rotational torque of the turret is set to be smaller than the rotational torque of the lens gear. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2871084U JPS60163437U (en) | 1984-02-28 | 1984-02-28 | Magnifying projection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2871084U JPS60163437U (en) | 1984-02-28 | 1984-02-28 | Magnifying projection device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60163437U true JPS60163437U (en) | 1985-10-30 |
| JPH0432660Y2 JPH0432660Y2 (en) | 1992-08-06 |
Family
ID=30526842
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2871084U Granted JPS60163437U (en) | 1984-02-28 | 1984-02-28 | Magnifying projection device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60163437U (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5855933A (en) * | 1981-09-30 | 1983-04-02 | Hitachi Ltd | Exposure device for scale down projection |
| JPS58172606A (en) * | 1982-04-03 | 1983-10-11 | Tokyo Optical Co Ltd | Variable power mechanism of optical device |
-
1984
- 1984-02-28 JP JP2871084U patent/JPS60163437U/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5855933A (en) * | 1981-09-30 | 1983-04-02 | Hitachi Ltd | Exposure device for scale down projection |
| JPS58172606A (en) * | 1982-04-03 | 1983-10-11 | Tokyo Optical Co Ltd | Variable power mechanism of optical device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0432660Y2 (en) | 1992-08-06 |
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