JPS5319028A - Automatic focusing device for cinecamera - Google Patents
Automatic focusing device for cinecameraInfo
- Publication number
- JPS5319028A JPS5319028A JP9289476A JP9289476A JPS5319028A JP S5319028 A JPS5319028 A JP S5319028A JP 9289476 A JP9289476 A JP 9289476A JP 9289476 A JP9289476 A JP 9289476A JP S5319028 A JPS5319028 A JP S5319028A
- Authority
- JP
- Japan
- Prior art keywords
- cinecamera
- automatic focusing
- focusing device
- simplify
- vicinity
- 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 abstract 2
- 238000010276 construction Methods 0.000 abstract 1
Landscapes
- Focusing (AREA)
- Automatic Focus Adjustment (AREA)
Abstract
PURPOSE: To simplify the construction to reduce the production cost by moving the reflecting optical element, which is arranged in the vicinity of the focal plane of an objective lens, in the direction perpendicular to the optical path in response to the operation of a shutter driving motor.
COPYRIGHT: (C)1978,JPO&Japio
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9289476A JPS5319028A (en) | 1976-08-04 | 1976-08-04 | Automatic focusing device for cinecamera |
| US05/754,699 US4090209A (en) | 1975-12-26 | 1976-12-27 | Automatic image focusing system for cameras |
| DE19762659009 DE2659009A1 (en) | 1975-12-26 | 1976-12-27 | Automatic focussing camera coping with weak light - uses secondary image periodically shifted to generate AC detection signal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9289476A JPS5319028A (en) | 1976-08-04 | 1976-08-04 | Automatic focusing device for cinecamera |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5319028A true JPS5319028A (en) | 1978-02-21 |
Family
ID=14067156
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9289476A Pending JPS5319028A (en) | 1975-12-26 | 1976-08-04 | Automatic focusing device for cinecamera |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5319028A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57179810A (en) * | 1981-04-30 | 1982-11-05 | Olympus Optical Co Ltd | Focusing device for optical system |
| JPS59162515A (en) * | 1983-03-07 | 1984-09-13 | Olympus Optical Co Ltd | Focus information detector |
-
1976
- 1976-08-04 JP JP9289476A patent/JPS5319028A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57179810A (en) * | 1981-04-30 | 1982-11-05 | Olympus Optical Co Ltd | Focusing device for optical system |
| JPS59162515A (en) * | 1983-03-07 | 1984-09-13 | Olympus Optical Co Ltd | Focus information detector |
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