JPS6284031U - - Google Patents
Info
- Publication number
- JPS6284031U JPS6284031U JP17553085U JP17553085U JPS6284031U JP S6284031 U JPS6284031 U JP S6284031U JP 17553085 U JP17553085 U JP 17553085U JP 17553085 U JP17553085 U JP 17553085U JP S6284031 U JPS6284031 U JP S6284031U
- Authority
- JP
- Japan
- Prior art keywords
- aperture
- rotation
- blade
- blade lever
- lever
- 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 1
Landscapes
- Diaphragms For Cameras (AREA)
Description
第１図は本考案装置の第１の実施例を示す上面
図、第２図はその分解斜視図、第３図は絞りの開
放状態を示す上面図、第４図はその絞り込み状態
を示す上面図、第５図は本考案装置の第２の実施
例を示す上面図、第６図は従来型の絞り装置の上
面図、第７図はその分解斜視図、第８図は絞りの
開放状態を示す上面図、第９図はその絞り込み状
態を示す上面図である。
１…駆動モータ、２…羽根レバー、３，４…絞
り羽根、５…地板、１０…駆動モータ、１１，１
２…絞り羽根、１３…地板、１４…羽根レバー、
１５…羽根レバー駆動アーム、１６…羽根レバー
の回転中心、１７…出力軸。
Fig. 1 is a top view showing the first embodiment of the device of the present invention, Fig. 2 is an exploded perspective view thereof, Fig. 3 is a top view showing the aperture in the open state, and Fig. 4 is a top view showing the aperture in the closed state. 5 is a top view showing the second embodiment of the device of the present invention, FIG. 6 is a top view of a conventional aperture device, FIG. 7 is an exploded perspective view thereof, and FIG. 8 is an open state of the aperture. FIG. 9 is a top view showing the narrowed down state. DESCRIPTION OF SYMBOLS 1... Drive motor, 2... Blade lever, 3, 4... Aperture blade, 5... Base plate, 10... Drive motor, 11, 1
2...Aperture blade, 13...Main plate, 14...Blade lever,
15... Vane lever drive arm, 16... Rotation center of the vane lever, 17... Output shaft.
Claims (1)
行移動するように配置された複数枚の絞り羽根を
含む絞り装置における絞り羽根駆動装置において
、回転中心の周りに回転することによつて絞り羽
根を平行移動させる羽根レバーと、駆動源の出力
軸に固定されて該出力軸の回転を該羽根レバーに
伝達する羽根レバー駆動アームとを備え、該羽根
レバーの回転角が該羽根レバー駆動アームの回転
角より大きくなるように両者の回転中心を喰い違
つた位置に配置したことを特徴とする絞り装置の
絞り羽根駆動装置。 In an aperture blade drive device of an aperture device that includes a plurality of aperture blades arranged so as to move relatively in parallel on the same straight line on a plane orthogonal to the optical axis, by rotating around a rotation center. It includes a blade lever that moves the aperture blades in parallel, and a blade lever drive arm that is fixed to an output shaft of a drive source and transmits the rotation of the output shaft to the blade lever, and the rotation angle of the blade lever drives the blade lever. An aperture blade drive device for an aperture device, characterized in that the centers of rotation of the two are arranged at different positions so that the angle of rotation is larger than the rotation angle of the arm.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17553085U JPS6284031U (en) | 1985-11-14 | 1985-11-14 | |
| US06/878,605 US4797700A (en) | 1985-06-28 | 1986-06-26 | Diaphragm device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17553085U JPS6284031U (en) | 1985-11-14 | 1985-11-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6284031U true JPS6284031U (en) | 1987-05-28 |
Family
ID=31114939
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17553085U Pending JPS6284031U (en) | 1985-06-28 | 1985-11-14 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6284031U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0590457U (en) * | 1991-06-26 | 1993-12-10 | ニスカ株式会社 | Light intensity adjustment device |
| JP2009204951A (en) * | 2008-02-28 | 2009-09-10 | Nidec Copal Corp | Diaphragm device |
-
1985
- 1985-11-14 JP JP17553085U patent/JPS6284031U/ja active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0590457U (en) * | 1991-06-26 | 1993-12-10 | ニスカ株式会社 | Light intensity adjustment device |
| JP2009204951A (en) * | 2008-02-28 | 2009-09-10 | Nidec Copal Corp | Diaphragm device |
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