JPS5912135U - Flash discharge emitter that responds to the brightness of the subject - Google Patents

Flash discharge emitter that responds to the brightness of the subject

Info

Publication number
JPS5912135U
JPS5912135U JP1982105168U JP10516882U JPS5912135U JP S5912135 U JPS5912135 U JP S5912135U JP 1982105168 U JP1982105168 U JP 1982105168U JP 10516882 U JP10516882 U JP 10516882U JP S5912135 U JPS5912135 U JP S5912135U
Authority
JP
Japan
Prior art keywords
brightness
responds
subject
flash discharge
state
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
JP1982105168U
Other languages
Japanese (ja)
Inventor
良行 竹松
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to JP1982105168U priority Critical patent/JPS5912135U/en
Priority to DE19833322208 priority patent/DE3322208A1/en
Priority to GB08318293A priority patent/GB2123570A/en
Priority to IT48662/83A priority patent/IT1197673B/en
Priority to FR8311642A priority patent/FR2530353A1/en
Publication of JPS5912135U publication Critical patent/JPS5912135U/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B41/00—Circuit arrangements or apparatus for igniting or operating discharge lamps
    • H05B41/14—Circuit arrangements
    • H05B41/30—Circuit arrangements in which the lamp is fed by pulses, e.g. flash lamp
    • H05B41/32—Circuit arrangements in which the lamp is fed by pulses, e.g. flash lamp for single flash operation
    • H05B41/325—Circuit arrangements in which the lamp is fed by pulses, e.g. flash lamp for single flash operation by measuring the incident light
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Stroboscope Apparatuses (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 the drawing]

、第１図は本考案に係る閃光放電発光器の回路図、第２
図は上記閃光放電発光器に含む応答回路の設定値操作手
段を示す当該発光器の背面図、第３図は上記設定値操作
手段の他の例を示す上記発光器の部分的な背面図、第４
図及び第５図は本考案の他の実施例を示す閃光放電発光
器の回路図である。 ３・・・発振トランス、４・・・１ランジスタ、９・・
・主放電コンデンサ、１０・・・閃光放電管、１５・・
・トリガーコンデンサ、１６・・・トリガートランス、
１７・・・トリガースイッチ、１８・・・放電抵抗、１
９・・・応答回路、２０・・−ｃｄｓ、　２１〜２３・
・・抵抗、２４・・・コンパレータ、２６・・・受光量
制限部材、２７〜２９・・・ノブ。, FIG. 1 is a circuit diagram of a flash discharge light emitter according to the present invention, and FIG.
3 is a rear view of the flash discharge light emitting device showing a set value operating means of a response circuit included in the light emitting device; FIG. 3 is a partial rear view of the light emitting device showing another example of the set value operating means; Fourth
FIG. 5 is a circuit diagram of a flash discharge light emitting device showing another embodiment of the present invention. 3...Oscillation transformer, 4...1 transistor, 9...
・Main discharge capacitor, 10...Flash discharge tube, 15...
・Trigger capacitor, 16...Trigger transformer,
17...Trigger switch, 18...Discharge resistor, 1
9...Response circuit, 20...-cds, 21-23.
...Resistor, 24...Comparator, 26...Light reception amount limiting member, 27-29...Knob.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 被写界の明るさを検出してこの明るさのレベルが予め定
めた設定値を越えたときに第１状態から第２状態に変化
する応答回路と、この応答回路が第１状態にあるとき発
光始動を許容し、第２状態にあるとき発光始動を阻止す
るように上記応答回路の出力に応動する発光始動制御回
路と、カメラレンズの明るさ或いはフィルム感度などの
光学的条件にしたがって上記応答回路の設定値を切り換
えることができる設定値切換手段と番備えた被写界の明
るさに応動する閃光放電発光器。A response circuit that detects the brightness of a subject and changes from a first state to a second state when the brightness level exceeds a predetermined set value, and when this response circuit is in the first state. a light emission start control circuit that responds to the output of the response circuit so as to permit the start of light emission and prevent the start of light emission when in a second state; A flash discharge light emitting device that responds to the brightness of an object field is equipped with a set value switching means that can switch the set value of a circuit.
JP1982105168U 1982-07-13 1982-07-13 Flash discharge emitter that responds to the brightness of the subject Pending JPS5912135U (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP1982105168U JPS5912135U (en) 1982-07-13 1982-07-13 Flash discharge emitter that responds to the brightness of the subject
DE19833322208 DE3322208A1 (en) 1982-07-13 1983-06-21 FLASH DEVICE
GB08318293A GB2123570A (en) 1982-07-13 1983-07-06 Luminance-responsive photographic flash device
IT48662/83A IT1197673B (en) 1982-07-13 1983-07-11 Control circuit for electronic flash
FR8311642A FR2530353A1 (en) 1982-07-13 1983-07-12 LIGHTING DEVICE ADAPTED TO BE MADE ACTIVE IN RESPONSE TO THE LUMINANCE OF THE OBJECT TO BE PHOTOGRAPHED

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1982105168U JPS5912135U (en) 1982-07-13 1982-07-13 Flash discharge emitter that responds to the brightness of the subject

Publications (1)

Publication Number Publication Date
JPS5912135U true JPS5912135U (en) 1984-01-25

Family

ID=14400147

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1982105168U Pending JPS5912135U (en) 1982-07-13 1982-07-13 Flash discharge emitter that responds to the brightness of the subject

Country Status (5)

Country Link
JP (1) JPS5912135U (en)
DE (1) DE3322208A1 (en)
FR (1) FR2530353A1 (en)
GB (1) GB2123570A (en)
IT (1) IT1197673B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4887120A (en) * 1984-02-04 1989-12-12 Ricoh Company, Ltd. Electronic flash photographing system
JP2868270B2 (en) * 1990-02-14 1999-03-10 旭光学工業株式会社 Camera exposure control device

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4939418B1 (en) * 1967-03-07 1974-10-25
JPS52125318A (en) * 1976-03-17 1977-10-21 West Electric Co Flash camera
JPS53106031A (en) * 1977-02-28 1978-09-14 Asahi Optical Co Ltd Strobo luminous control device using light measuring circuit for focal plane shutter type camera

Also Published As

Publication number Publication date
GB8318293D0 (en) 1983-08-10
IT1197673B (en) 1988-12-06
FR2530353A1 (en) 1984-01-20
DE3322208A1 (en) 1984-01-26
GB2123570A (en) 1984-02-01
IT8348662A0 (en) 1983-07-11

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