JPS5745526A - Dimming confirmation and display device in dimming strobe - Google Patents

Dimming confirmation and display device in dimming strobe

Info

Publication number
JPS5745526A
JPS5745526A JP55121575A JP12157580A JPS5745526A JP S5745526 A JPS5745526 A JP S5745526A JP 55121575 A JP55121575 A JP 55121575A JP 12157580 A JP12157580 A JP 12157580A JP S5745526 A JPS5745526 A JP S5745526A
Authority
JP
Japan
Prior art keywords
led
dimming
confirmation signal
confirmation
display device
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
JP55121575A
Other languages
Japanese (ja)
Other versions
JPS647368B2 (en
Inventor
Tadashi Okino
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 JP55121575A priority Critical patent/JPS5745526A/en
Publication of JPS5745526A publication Critical patent/JPS5745526A/en
Publication of JPS647368B2 publication Critical patent/JPS647368B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B15/00—Special procedures for taking photographs; Apparatus therefor
    • G03B15/02—Illuminating scene
    • G03B15/03—Combinations of cameras with lighting apparatus; Flash units
    • G03B15/05—Combinations of cameras with electronic flash apparatus; Electronic flash units
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B2215/00—Special procedures for taking photographs; Apparatus therefor
    • G03B2215/05—Combinations of cameras with electronic flash units

Abstract

PURPOSE:To make the suitability of exposure identifiable by controlling the lighting operation of an LED for confirming the light emission of a flash lamp. CONSTITUTION:The confirmation signal generated when the light providing correct exposure is emitted from a flashlamp Xe is displayed by an LED. A monostable multi consisting of an inverter A1 and an NOR gate A2 energizes the LED for a constant time by this confirmation signal. When the 2nd confirmation signal based on th next emission is generated while this LED is displaying the confirmation signal, the monostable multi is reset by a reset circuit A3, and the operation of the LED is invalidated by a reset circuit A4 after lapse of a constant time.
JP55121575A 1980-09-01 1980-09-01 Dimming confirmation and display device in dimming strobe Granted JPS5745526A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55121575A JPS5745526A (en) 1980-09-01 1980-09-01 Dimming confirmation and display device in dimming strobe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55121575A JPS5745526A (en) 1980-09-01 1980-09-01 Dimming confirmation and display device in dimming strobe

Publications (2)

Publication Number Publication Date
JPS5745526A true JPS5745526A (en) 1982-03-15
JPS647368B2 JPS647368B2 (en) 1989-02-08

Family

ID=14814623

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55121575A Granted JPS5745526A (en) 1980-09-01 1980-09-01 Dimming confirmation and display device in dimming strobe

Country Status (1)

Country Link
JP (1) JPS5745526A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61118223U (en) * 1984-12-29 1986-07-25

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61118223U (en) * 1984-12-29 1986-07-25

Also Published As

Publication number Publication date
JPS647368B2 (en) 1989-02-08

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