JPS55155334A - Subject radiating device of automatic focusing camera - Google Patents
Subject radiating device of automatic focusing cameraInfo
- Publication number
- JPS55155334A JPS55155334A JP6295179A JP6295179A JPS55155334A JP S55155334 A JPS55155334 A JP S55155334A JP 6295179 A JP6295179 A JP 6295179A JP 6295179 A JP6295179 A JP 6295179A JP S55155334 A JPS55155334 A JP S55155334A
- Authority
- JP
- Japan
- Prior art keywords
- subject
- lighting
- strobe
- goes
- becomes
- 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
- Exposure Control For Cameras (AREA)
- Focusing (AREA)
- Stroboscope Apparatuses (AREA)
- Automatic Focus Adjustment (AREA)
Abstract
PURPOSE: To prevent the wasteful consumption of batteries by obviating lighting of a subject lighting lamp when the subject is bright even while a strobe is in use.
CONSTITUTION: When a switch 4 goes on in strobe takin, voltage is applied to comparators 24, 35 and the subject lighting device and home position locking device are abled. When the subject luminance is LV4 or less, the output of the circuit 24 becomes H and when a transistor (TR)26 goes ON, the subject lighting lamp 29 lights only at the search scanning, thereby lighting the subject. If the subject luminance is larger than EV4 even when the strobe is in use, the output of the circuit 4 becomes L and the TRs26 and 27 go OFF and TR28 goes ON so that the output of the circuit 35 becomes L and the home position locking device is disabled. The lamp 29 does not go on either.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6295179A JPS55155334A (en) | 1979-05-22 | 1979-05-22 | Subject radiating device of automatic focusing camera |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6295179A JPS55155334A (en) | 1979-05-22 | 1979-05-22 | Subject radiating device of automatic focusing camera |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS55155334A true JPS55155334A (en) | 1980-12-03 |
Family
ID=13215127
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP6295179A Pending JPS55155334A (en) | 1979-05-22 | 1979-05-22 | Subject radiating device of automatic focusing camera |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55155334A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5879229A (en) * | 1981-11-05 | 1983-05-13 | Fuji Photo Optical Co Ltd | Camera built-in with auto focus |
JPS59157604A (en) * | 1983-02-28 | 1984-09-07 | Nippon Seimitsu Kogyo Kk | Optical equipment equipped with focus controller |
JPH0314633U (en) * | 1989-06-28 | 1991-02-14 |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS51110322A (en) * | 1975-03-24 | 1976-09-29 | Minolta Camera Kk | SOTSUKYOSHASHOMEITOSHASOCHINAIZOKAMERA |
-
1979
- 1979-05-22 JP JP6295179A patent/JPS55155334A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS51110322A (en) * | 1975-03-24 | 1976-09-29 | Minolta Camera Kk | SOTSUKYOSHASHOMEITOSHASOCHINAIZOKAMERA |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5879229A (en) * | 1981-11-05 | 1983-05-13 | Fuji Photo Optical Co Ltd | Camera built-in with auto focus |
JPS59157604A (en) * | 1983-02-28 | 1984-09-07 | Nippon Seimitsu Kogyo Kk | Optical equipment equipped with focus controller |
JPH0314633U (en) * | 1989-06-28 | 1991-02-14 |
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