JPS552286A - Automatic focus adjustment control unit of camera - Google Patents
Automatic focus adjustment control unit of cameraInfo
- Publication number
- JPS552286A JPS552286A JP7589278A JP7589278A JPS552286A JP S552286 A JPS552286 A JP S552286A JP 7589278 A JP7589278 A JP 7589278A JP 7589278 A JP7589278 A JP 7589278A JP S552286 A JPS552286 A JP S552286A
- Authority
- JP
- Japan
- Prior art keywords
- state
- distance
- subject
- flash
- high level
- 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
- Focusing (AREA)
- Shutters For Cameras (AREA)
- Automatic Focus Adjustment (AREA)
Abstract
PURPOSE: To enable correct focus and exposure to be obtained with respect to a certain field portion at the specified distance within a flash coupling range by providing the condition circuit including a switch which changes over from the 1st state to the 2nd state when flash potographing is set.
CONSTITUTION: When a changeover 15 material is set in the position matching the mark 16 in order to make flash photographing, a switch SW1 is closed and an inverter 19 outputs a high level signal as a condition signal. When in this state the high level signal is unobtainable in any of terminals Z1, Z2, Z3, i.e., when the subject is in a remote distance zone, or when the subject is so dark that a distance measuring device 14 is unable to detect the subject distance, transistors Tr1, Tr2 are held in a cutoff state and only the transistor Tr3 conducts to energize an electromagnet 8, by which the leftward movement of a lens extension member 3 is stopped and in this case it turns out that the focus of the photographic lens L mathes the second middle distance zone.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7589278A JPS552286A (en) | 1978-06-21 | 1978-06-21 | Automatic focus adjustment control unit of camera |
DE19792902501 DE2902501A1 (en) | 1978-02-04 | 1979-01-23 | INDEPENDENT FOCUS ADJUSTMENT FOR CAMERAS |
US06/006,176 US4238153A (en) | 1978-02-04 | 1979-01-24 | Automatic focus adjusting device for cameras |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7589278A JPS552286A (en) | 1978-06-21 | 1978-06-21 | Automatic focus adjustment control unit of camera |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS552286A true JPS552286A (en) | 1980-01-09 |
Family
ID=13589413
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7589278A Pending JPS552286A (en) | 1978-02-04 | 1978-06-21 | Automatic focus adjustment control unit of camera |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS552286A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5574521A (en) * | 1978-11-29 | 1980-06-05 | Fuji Photo Film Co Ltd | Autofocus device |
JPS59202437A (en) * | 1983-05-04 | 1984-11-16 | Fuji Photo Film Co Ltd | Autofocus camera incorporating strobe |
JPS59204012A (en) * | 1983-05-06 | 1984-11-19 | Fuji Photo Film Co Ltd | Auto focus camera |
JPH0448522U (en) * | 1990-08-30 | 1992-04-24 |
-
1978
- 1978-06-21 JP JP7589278A patent/JPS552286A/en active Pending
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5574521A (en) * | 1978-11-29 | 1980-06-05 | Fuji Photo Film Co Ltd | Autofocus device |
JPS59202437A (en) * | 1983-05-04 | 1984-11-16 | Fuji Photo Film Co Ltd | Autofocus camera incorporating strobe |
JPH043535B2 (en) * | 1983-05-04 | 1992-01-23 | ||
JPS59204012A (en) * | 1983-05-06 | 1984-11-19 | Fuji Photo Film Co Ltd | Auto focus camera |
JPH0473565B2 (en) * | 1983-05-06 | 1992-11-24 | ||
JPH0448522U (en) * | 1990-08-30 | 1992-04-24 |
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