JPS5574520A - Automatic focusing device - Google Patents
Automatic focusing deviceInfo
- Publication number
- JPS5574520A JPS5574520A JP14808878A JP14808878A JPS5574520A JP S5574520 A JPS5574520 A JP S5574520A JP 14808878 A JP14808878 A JP 14808878A JP 14808878 A JP14808878 A JP 14808878A JP S5574520 A JPS5574520 A JP S5574520A
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- signal becomes
- sequence
- flops
- flip
- 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
Landscapes
- Focusing (AREA)
- Automatic Focus Adjustment (AREA)
Abstract
PURPOSE: To prevent the failure of operation by performing the respective operation steps after sequence starting in an electronical sequence circuit.
CONSTITUTION: The sequence control circuit is constituted by connecting an inversion circuit I6 to a supply voltage detecting circuit G by way of the logical product circuit AND2 connected with a counter C1 via OR circuit OR 1, an OR circuit 2 connected with reset circuits Cr, Rs, flip-flops FF1, FF2, a logical add circuit OR 3, etc. If with this arrangment the supply voltage is applied by depression of a release button, the flip-flops FF1, FF2 are reset by reset circuits Cr, Rs. When the extension of the lens-barrel is started after this, the LEST signal becomes lower level and further the PEAK signal becomes low level and the shutter begins opening operation, thence the lens-barrel reaches the specified portion, at which time the 5M signal becomes low level, then the sutter release is accomplished.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14808878A JPS5574520A (en) | 1978-11-30 | 1978-11-30 | Automatic focusing device |
US06/074,313 US4350418A (en) | 1978-09-14 | 1979-09-11 | Camera provided with automatic focus adjusting device |
DE2937288A DE2937288C2 (en) | 1978-09-14 | 1979-09-14 | Camera with an automatic focusing device for a lens |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14808878A JPS5574520A (en) | 1978-11-30 | 1978-11-30 | Automatic focusing device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5574520A true JPS5574520A (en) | 1980-06-05 |
JPS6152452B2 JPS6152452B2 (en) | 1986-11-13 |
Family
ID=15444958
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP14808878A Granted JPS5574520A (en) | 1978-09-14 | 1978-11-30 | Automatic focusing device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5574520A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58132733A (en) * | 1982-02-02 | 1983-08-08 | Canon Inc | Automatic focusing camera provided with auxiliary illuminator |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3617017A1 (en) * | 1986-05-21 | 1987-11-26 | Bosch Gmbh Robert | STATOR FOR AN ELECTRICAL MACHINE |
-
1978
- 1978-11-30 JP JP14808878A patent/JPS5574520A/en active Granted
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58132733A (en) * | 1982-02-02 | 1983-08-08 | Canon Inc | Automatic focusing camera provided with auxiliary illuminator |
JPH021285B2 (en) * | 1982-02-02 | 1990-01-11 | Canon Kk |
Also Published As
Publication number | Publication date |
---|---|
JPS6152452B2 (en) | 1986-11-13 |
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