JPS5681823A - Flash camera - Google Patents

Flash camera

Info

Publication number
JPS5681823A
JPS5681823A JP15956979A JP15956979A JPS5681823A JP S5681823 A JPS5681823 A JP S5681823A JP 15956979 A JP15956979 A JP 15956979A JP 15956979 A JP15956979 A JP 15956979A JP S5681823 A JPS5681823 A JP S5681823A
Authority
JP
Japan
Prior art keywords
dimming
circuit
controlling
distance
constituted
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
Application number
JP15956979A
Other languages
Japanese (ja)
Other versions
JPS6157615B2 (en
Inventor
Hiroshi Iwata
Wataru Hasegawa
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.)
West Electric Co Ltd
Original Assignee
West Electric Co Ltd
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 West Electric Co Ltd filed Critical West Electric Co Ltd
Priority to JP15956979A priority Critical patent/JPS5681823A/en
Publication of JPS5681823A publication Critical patent/JPS5681823A/en
Publication of JPS6157615B2 publication Critical patent/JPS6157615B2/ja
Granted legal-status Critical Current

Links

Abstract

PURPOSE: To obtain accurate and superior dimming characteristics by controlling the lens by means of the output signal of a distance measuring part and at the same time controlling the dimming operation of an automatic dimming electronic flash device as well.
CONSTITUTION: A distance meaurement control device constituted of a distance information processing circuit I which controls the operation of a taking lens by starting operation synchronously with the oscillator 15 of an ultrasonic circuit E for the purpose of emitting ultrasonic waves and stopping operation synchronously with the reception of ultrasonic waves by s receiving circuit F, and a lens driving circuit J as well as a dimming circuit constituted of a dimming oscillation part S by the signal from this distance measurement control circuit are controlled. A dimming control circuit constituted of a dimming part T controlling the light emission of a flash discharge tube 0 and a main discharge capacitor N is also provided.
COPYRIGHT: (C)1981,JPO&Japio
JP15956979A 1979-12-07 1979-12-07 Flash camera Granted JPS5681823A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15956979A JPS5681823A (en) 1979-12-07 1979-12-07 Flash camera

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15956979A JPS5681823A (en) 1979-12-07 1979-12-07 Flash camera

Publications (2)

Publication Number Publication Date
JPS5681823A true JPS5681823A (en) 1981-07-04
JPS6157615B2 JPS6157615B2 (en) 1986-12-08

Family

ID=15696580

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15956979A Granted JPS5681823A (en) 1979-12-07 1979-12-07 Flash camera

Country Status (1)

Country Link
JP (1) JPS5681823A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009265112A (en) * 2008-04-02 2009-11-12 Casio Hitachi Mobile Communications Co Ltd Imaging apparatus and program

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49110337A (en) * 1973-02-20 1974-10-21
JPS50110235A (en) * 1974-01-31 1975-08-30
JPS5132326A (en) * 1974-09-12 1976-03-18 Asahi Optical Co Ltd SENKOHODENHATSUKOKINIOKERU HATSUKOSEIGYOSOCHI

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49110337A (en) * 1973-02-20 1974-10-21
JPS50110235A (en) * 1974-01-31 1975-08-30
JPS5132326A (en) * 1974-09-12 1976-03-18 Asahi Optical Co Ltd SENKOHODENHATSUKOKINIOKERU HATSUKOSEIGYOSOCHI

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009265112A (en) * 2008-04-02 2009-11-12 Casio Hitachi Mobile Communications Co Ltd Imaging apparatus and program

Also Published As

Publication number Publication date
JPS6157615B2 (en) 1986-12-08

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