JPS5891738U - electronic flash device - Google Patents

electronic flash device

Info

Publication number
JPS5891738U
JPS5891738U JP18694281U JP18694281U JPS5891738U JP S5891738 U JPS5891738 U JP S5891738U JP 18694281 U JP18694281 U JP 18694281U JP 18694281 U JP18694281 U JP 18694281U JP S5891738 U JPS5891738 U JP S5891738U
Authority
JP
Japan
Prior art keywords
circuit
light
light emission
time constant
flash
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
JP18694281U
Other languages
Japanese (ja)
Inventor
丸山　裕仁
進 木田
克已 堀西
Original Assignee
ウエスト電気株式会社
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 ウエスト電気株式会社 filed Critical ウエスト電気株式会社
Priority to JP18694281U priority Critical patent/JPS5891738U/en
Publication of JPS5891738U publication Critical patent/JPS5891738U/en
Pending legal-status Critical Current

Links

Landscapes

  • Stroboscope Apparatuses (AREA)
  • Discharge-Lamp Control Circuits And Pulse- Feed Circuits (AREA)

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【図面の簡単な説明】[Brief explanation of drawings]

第１図は本考案の実施例である電子閃光装置の電気回路
図を示し、第２図はオートモードとマニュアルモードの
それぞれにおける発音周波数の波形図を示す。 ４・・・・・・主コンデンサ、５．６・・・・・・分割
抵抗、８・・・・・・閃光管、９・・・・・・発光制御
回路、１１・・四発音体、１２・・・・・・受光素子、
１３・・曲切換スイッチ、１４・・・・・・積分コンデ
ンサ、１５．１６・・・・・・コンデンサ、１７・・・
・・・抵抗、１８・・・・・・制御回路。FIG. 1 shows an electric circuit diagram of an electronic flash device according to an embodiment of the present invention, and FIG. 2 shows waveform diagrams of sounding frequencies in auto mode and manual mode, respectively. 4... Main capacitor, 5.6... Dividing resistor, 8... Flash tube, 9... Light emission control circuit, 11... Quadruple sound body, 12... Light receiving element,
13... Song selection switch, 14... Integrating capacitor, 15.16... Capacitor, 17...
...Resistor, 18...Control circuit.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 主放電コンデンサの充電エネルギーを消費して閃光を発
する閃光管と、被写体からの反射光を受光し該受光量が
所定値に達したときに発光停止信号を発する受光回路と
、オートモードとマニュアルモードとを切換えるスイッ
チと、前記発光停止信号を受けて前記閃光管の発光を停
止する発光制御回路とを有して成る電子閃光装置におい
て、前記主放電コンデンサの充電電圧を検出する回路と
、発音体と前記充電電圧検出回路の出力信号と時定数回
路からの出力信号を受けて前記発音体の発音を制御する
制御回路とを有して成る発音装置と、前記オートモード
とマニュアルモードとを前換えるスイッチに連動して切
換えられ、前記時定数回路の時定数を変化させる回路と
を備えてなる電子閃光装置。A flash tube that emits flash light by consuming the charging energy of the main discharge capacitor, a light receiving circuit that receives reflected light from the subject and issues a light emission stop signal when the amount of light received reaches a predetermined value, and auto mode and manual mode. and a light emission control circuit that stops light emission of the flash tube in response to the light emission stop signal; and a control circuit that receives the output signal of the charging voltage detection circuit and the output signal from the time constant circuit and controls the sound generation of the sounding body, and that switches between the auto mode and the manual mode. An electronic flash device comprising: a circuit that is switched in conjunction with a switch to change the time constant of the time constant circuit.
JP18694281U 1981-12-14 1981-12-14 electronic flash device Pending JPS5891738U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18694281U JPS5891738U (en) 1981-12-14 1981-12-14 electronic flash device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18694281U JPS5891738U (en) 1981-12-14 1981-12-14 electronic flash device

Publications (1)

Publication Number Publication Date
JPS5891738U true JPS5891738U (en) 1983-06-21

Family

ID=29989330

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18694281U Pending JPS5891738U (en) 1981-12-14 1981-12-14 electronic flash device

Country Status (1)

Country Link
JP (1) JPS5891738U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106338874A (en) * 2015-07-07 2017-01-18 佳能株式会社 Illumination Apparatus And Method For Controlling The Same

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106338874A (en) * 2015-07-07 2017-01-18 佳能株式会社 Illumination Apparatus And Method For Controlling The Same

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