JPH02121730U - - Google Patents
Info
- Publication number
- JPH02121730U JPH02121730U JP3077089U JP3077089U JPH02121730U JP H02121730 U JPH02121730 U JP H02121730U JP 3077089 U JP3077089 U JP 3077089U JP 3077089 U JP3077089 U JP 3077089U JP H02121730 U JPH02121730 U JP H02121730U
- Authority
- JP
- Japan
- Prior art keywords
- base member
- optical path
- step motor
- cam
- ring
- 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 6
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Diaphragms For Cameras (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3077089U JPH0710335Y2 (ja) | 1989-03-17 | 1989-03-17 | ステップモータを駆動源とする口径調節装置 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3077089U JPH0710335Y2 (ja) | 1989-03-17 | 1989-03-17 | ステップモータを駆動源とする口径調節装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH02121730U true JPH02121730U (lm) | 1990-10-03 |
JPH0710335Y2 JPH0710335Y2 (ja) | 1995-03-08 |
Family
ID=31256129
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP3077089U Expired - Fee Related JPH0710335Y2 (ja) | 1989-03-17 | 1989-03-17 | ステップモータを駆動源とする口径調節装置 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0710335Y2 (lm) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2012145929A (ja) * | 2010-12-21 | 2012-08-02 | Canon Electronics Inc | 光量調節装置および光学機器 |
JP2018141829A (ja) * | 2017-02-27 | 2018-09-13 | オリンパス株式会社 | 露光量調整装置 |
US11073742B2 (en) | 2019-06-03 | 2021-07-27 | Canon Kabushiki Kaisha | Light amount adjusting apparatus and optical apparatus |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007163827A (ja) * | 2005-12-14 | 2007-06-28 | Tokyo Micro:Kk | 光路開閉装置及び撮像装置 |
-
1989
- 1989-03-17 JP JP3077089U patent/JPH0710335Y2/ja not_active Expired - Fee Related
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2012145929A (ja) * | 2010-12-21 | 2012-08-02 | Canon Electronics Inc | 光量調節装置および光学機器 |
JP2018141829A (ja) * | 2017-02-27 | 2018-09-13 | オリンパス株式会社 | 露光量調整装置 |
US11073742B2 (en) | 2019-06-03 | 2021-07-27 | Canon Kabushiki Kaisha | Light amount adjusting apparatus and optical apparatus |
Also Published As
Publication number | Publication date |
---|---|
JPH0710335Y2 (ja) | 1995-03-08 |
Similar Documents
Legal Events
Date | Code | Title | Description |
---|---|---|---|
LAPS | Cancellation because of no payment of annual fees |