JPS5474425A - Automatic focusing camera - Google Patents

Automatic focusing camera

Info

Publication number
JPS5474425A
JPS5474425A JP14181477A JP14181477A JPS5474425A JP S5474425 A JPS5474425 A JP S5474425A JP 14181477 A JP14181477 A JP 14181477A JP 14181477 A JP14181477 A JP 14181477A JP S5474425 A JPS5474425 A JP S5474425A
Authority
JP
Japan
Prior art keywords
range finding
lever
lens
turned
generated
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
Application number
JP14181477A
Other languages
Japanese (ja)
Inventor
Mitsuya Hosoe
Mutsuhide Matsuda
Shuichi Tamura
Tetsuya Taguchi
Hideo Yokota
Makoto Masunaga
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Canon Inc
Original Assignee
Canon Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Canon Inc filed Critical Canon Inc
Priority to JP14181477A priority Critical patent/JPS5474425A/en
Priority to DE19782847368 priority patent/DE2847368A1/en
Priority to DE19782858017 priority patent/DE2858017C2/en
Publication of JPS5474425A publication Critical patent/JPS5474425A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To make it possible to accomplish the subsequent range finding operation merely through the clearance of electric signals, when the previous range finding operation has failed, by completely separating the range finding operation of an automatic focusing camera and the focusing operation of a photographic lens.
CONSTITUTION: When a winding lever 116 is wound up prior to the photography, a lever 130 depresses the pin 136 of the lens mount 115 of a photographic lens 114 so that the lens 114 may be let off against the action of a spring 137. When the lever 116 is turned a preset angle, the lever 130 is retained by another lever 133 so that the lens 114 is held under the condition, in which it is let off to the proximity. On the other hand, a pulse generating plate 97 and a plane mirror 83 are turned in advance to the initial positions. If an Operator scales the object through a finder and depressed an operating member 103, a switch 105 is turned on so that a range finding circuit 142 is brought into operating condition. At the same time, the pulse generating plate 97 and the plane mirror 83 follow their original passages to turn so that the extent of rotations of the mirror 83 until a coincidence signal is generated is held as the sum of the pulses generated in a range finding circuit 142. If the member 103 is further depressed after the range finding operation is funished, the lens mount 115 is turned to a point where the number of pulses corresponding to the stored range finding signals are generated.
COPYRIGHT: (C)1979,JPO&Japio
JP14181477A 1977-11-02 1977-11-26 Automatic focusing camera Pending JPS5474425A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP14181477A JPS5474425A (en) 1977-11-26 1977-11-26 Automatic focusing camera
DE19782847368 DE2847368A1 (en) 1977-11-02 1978-10-31 Automatic focussing for camera - measures subject distance and produces output signal which is matched to focussing ring distance setting signal
DE19782858017 DE2858017C2 (en) 1977-11-02 1978-10-31 Automatic focusing system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14181477A JPS5474425A (en) 1977-11-26 1977-11-26 Automatic focusing camera

Publications (1)

Publication Number Publication Date
JPS5474425A true JPS5474425A (en) 1979-06-14

Family

ID=15300741

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14181477A Pending JPS5474425A (en) 1977-11-02 1977-11-26 Automatic focusing camera

Country Status (1)

Country Link
JP (1) JPS5474425A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54153628A (en) * 1978-05-25 1979-12-04 Ono Katsumi Cine camera

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54153628A (en) * 1978-05-25 1979-12-04 Ono Katsumi Cine camera

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