JPS54116224A - Automatic aperture control system single lens reflex camera - Google Patents
Automatic aperture control system single lens reflex cameraInfo
- Publication number
- JPS54116224A JPS54116224A JP13730978A JP13730978A JPS54116224A JP S54116224 A JPS54116224 A JP S54116224A JP 13730978 A JP13730978 A JP 13730978A JP 13730978 A JP13730978 A JP 13730978A JP S54116224 A JPS54116224 A JP S54116224A
- Authority
- JP
- Japan
- Prior art keywords
- counterclockwise
- lever
- aperture
- turn
- control
- 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
Abstract
PURPOSE: To perform accurate automatic determination of aperture by resetting a stopping member perfectly to its initial position as an actuating member presses a movable member in the reset position of the actuating member by the control member provided between the stopping member and the movable member spring connected to this.
CONSTITUTION: The continued depression of a shutter button causes a sliding shaft to move and a lever 37 to turn counterclockwise. This also causes the levers 33, 36, spring 38 assuming a loop form moving body with the aperture presetting member 7 to which the aperture cooperating pin 6 of an interchangeable lens makes contact to turn counterclockwise while being controlled of the speed. At this time, a sector gear 27 is turned counterclockwise by the pawl part 33a of the level 33, by which a ratchet gear 30 is turned clockwise by way of a pinion 32. At the same time, a lever 23 turns counterclockwise and tries to turn a stop lever 22 counterclockwise with its eccentric pin 23a, but this turning is blocked because an armature 21 is held attracted to an electromagnet 20. The eccentric pin 23a acts as a control member to control the variations of the stroke of the lever 33 owing to working errors and mounting errors of parts.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP53137309A JPS5916256B2 (en) | 1978-11-09 | 1978-11-09 | Automatic aperture control single-lens reflex camera |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP53137309A JPS5916256B2 (en) | 1978-11-09 | 1978-11-09 | Automatic aperture control single-lens reflex camera |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14470273A Division JPS5652298B2 (en) | 1973-12-28 | 1973-12-28 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS54116224A true JPS54116224A (en) | 1979-09-10 |
| JPS5916256B2 JPS5916256B2 (en) | 1984-04-14 |
Family
ID=15195663
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP53137309A Expired JPS5916256B2 (en) | 1978-11-09 | 1978-11-09 | Automatic aperture control single-lens reflex camera |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5916256B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56150735A (en) * | 1980-04-24 | 1981-11-21 | Minolta Camera Co Ltd | Diaphragm control device |
| JPS574034A (en) * | 1980-06-10 | 1982-01-09 | Kyocera Corp | Motor driving device |
| CN111547639A (en) * | 2020-05-12 | 2020-08-18 | 王利 | Manual elevating gear of building engineering |
-
1978
- 1978-11-09 JP JP53137309A patent/JPS5916256B2/en not_active Expired
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56150735A (en) * | 1980-04-24 | 1981-11-21 | Minolta Camera Co Ltd | Diaphragm control device |
| JPS574034A (en) * | 1980-06-10 | 1982-01-09 | Kyocera Corp | Motor driving device |
| JPH0467173B2 (en) * | 1980-06-10 | 1992-10-27 | Kyocera Corp | |
| CN111547639A (en) * | 2020-05-12 | 2020-08-18 | 王利 | Manual elevating gear of building engineering |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5916256B2 (en) | 1984-04-14 |
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