JPS5633634A - Mirror operating device in single-lens reflex camera - Google Patents
Mirror operating device in single-lens reflex cameraInfo
- Publication number
- JPS5633634A JPS5633634A JP10982879A JP10982879A JPS5633634A JP S5633634 A JPS5633634 A JP S5633634A JP 10982879 A JP10982879 A JP 10982879A JP 10982879 A JP10982879 A JP 10982879A JP S5633634 A JPS5633634 A JP S5633634A
- Authority
- JP
- Japan
- Prior art keywords
- mirror
- oscillation
- surely
- operating device
- cooperatively
- 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
Landscapes
- Cameras In General (AREA)
Abstract
PURPOSE: To surely retreat the 2nd mirror cooperatively with the 1st mirror with simple constitution by controlling the oscillation of the freely oscillatable 2nd mirror supporting arm for photometry via a cam etc.
CONSTITUTION: Incident light reflects on the 1st mirror 4 such as half mirror, goes toward a finder optical system, transmits through the mirror 4, then reflects on the 2nd mirror 5 and becomes the light for photometry toward a photodetector 6. According to shutter releasing, the shaft 7 of the mirror 4 is moved upward by a swing back lever 8 and the mirror 4 is turned upward so that the mirror 4 retreats to outside the incident light path. The oscillation of a supporting arm 12 which is freely oscillatable aroung the shaft 13 of the supporting member 10 in one body with this mirror 4, is provided at the side part of the mirror 4 and is provided with a mirror 5 at one end, is limited of the oscillation direction by the roller 14 at the other end in contact with a cam 17. Hence, the mirror 5 falls into the mirror 4 direction cooperatively with the mirror 4, thus two sets of the mirrors may be surely retreated.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10982879A JPS5633634A (en) | 1979-08-29 | 1979-08-29 | Mirror operating device in single-lens reflex camera |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10982879A JPS5633634A (en) | 1979-08-29 | 1979-08-29 | Mirror operating device in single-lens reflex camera |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20276686A Division JPS6278536A (en) | 1986-08-29 | 1986-08-29 | Mirror operating device for single lens reflex camera |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5633634A true JPS5633634A (en) | 1981-04-04 |
Family
ID=14520231
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10982879A Pending JPS5633634A (en) | 1979-08-29 | 1979-08-29 | Mirror operating device in single-lens reflex camera |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5633634A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5862341U (en) * | 1981-10-20 | 1983-04-26 | ミノルタ株式会社 | Mirror operation mechanism of single-lens reflex camera |
| US4673278A (en) * | 1984-07-06 | 1987-06-16 | Canon Kabushiki Kaisha | Mirror device for a camera |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54115130A (en) * | 1978-02-28 | 1979-09-07 | Asahi Optical Co Ltd | Mirror operating system in single lens reflex camera |
-
1979
- 1979-08-29 JP JP10982879A patent/JPS5633634A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54115130A (en) * | 1978-02-28 | 1979-09-07 | Asahi Optical Co Ltd | Mirror operating system in single lens reflex camera |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5862341U (en) * | 1981-10-20 | 1983-04-26 | ミノルタ株式会社 | Mirror operation mechanism of single-lens reflex camera |
| US4673278A (en) * | 1984-07-06 | 1987-06-16 | Canon Kabushiki Kaisha | Mirror device for a camera |
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