JPS5459340U - - Google Patents

Info

Publication number
JPS5459340U
JPS5459340U JP1977133417U JP13341777U JPS5459340U JP S5459340 U JPS5459340 U JP S5459340U JP 1977133417 U JP1977133417 U JP 1977133417U JP 13341777 U JP13341777 U JP 13341777U JP S5459340 U JPS5459340 U JP S5459340U
Authority
JP
Japan
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
JP1977133417U
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 filed Critical
Priority to JP1977133417U priority Critical patent/JPS5459340U/ja
Priority to US05/947,314 priority patent/US4250413A/en
Priority to GB7838802A priority patent/GB2005946B/en
Priority to DE19782843342 priority patent/DE2843342A1/de
Publication of JPS5459340U publication Critical patent/JPS5459340U/ja
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/28—Modifications for introducing a time delay before switching
    • 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
    • G03B9/00—Exposure-making shutters; Diaphragms
    • G03B9/58—Means for varying duration of "open" period of shutter

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electronic Switches (AREA)
  • Exposure Control For Cameras (AREA)
  • Details Of Cameras Including Film Mechanisms (AREA)
  • Indication In Cameras, And Counting Of Exposures (AREA)
JP1977133417U 1977-10-04 1977-10-04 Pending JPS5459340U (ja)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP1977133417U JPS5459340U (ja) 1977-10-04 1977-10-04
US05/947,314 US4250413A (en) 1977-10-04 1978-09-29 Camera power supply maintaining circuit
GB7838802A GB2005946B (en) 1977-10-04 1978-09-29 Camera power supply maintaining circuit
DE19782843342 DE2843342A1 (de) 1977-10-04 1978-10-04 Speisespannungs-aufrechterhaltungsschaltung fuer eine kamera

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1977133417U JPS5459340U (ja) 1977-10-04 1977-10-04

Publications (1)

Publication Number Publication Date
JPS5459340U true JPS5459340U (ja) 1979-04-24

Family

ID=15104276

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1977133417U Pending JPS5459340U (ja) 1977-10-04 1977-10-04

Country Status (4)

Country Link
US (1) US4250413A (ja)
JP (1) JPS5459340U (ja)
DE (1) DE2843342A1 (ja)
GB (1) GB2005946B (ja)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5781246A (en) * 1980-11-10 1982-05-21 Olympus Optical Co Ltd Strobe device
US4460264A (en) * 1981-09-01 1984-07-17 W. Haking Enterprises, Ltd. Electronic camera with automatic battery shutdown
JPH0834422B2 (ja) * 1984-09-19 1996-03-29 株式会社ニコン 電力供給装置
US4724456A (en) * 1985-09-30 1988-02-09 Minolta Camera Kabushiki Kaisha Camera system having photographic camera and electronic flash device
IT1217736B (it) * 1988-05-26 1990-03-30 Sgs Thomson Microeletronics Sp Circuito elettronico di spegnimento ritardato autoalimentato con controllo a bassissima tensione
JPH039320A (ja) * 1989-06-06 1991-01-17 Asahi Optical Co Ltd 液晶表示装置
EP0549165A2 (en) * 1991-12-23 1993-06-30 National Semiconductor Corporation Power conserving integrated circuit
KR960015043B1 (ko) * 1992-10-16 1996-10-24 삼성항공산업 주식회사 카메라의 자동 전원 차단장치 및 그의 구동방법
US5276477A (en) * 1993-03-18 1994-01-04 Eastman Kodak Company Camera display circuit
US5452277A (en) * 1993-12-30 1995-09-19 International Business Machines Corporation Adaptive system for optimizing disk drive power consumption
JPH08235761A (ja) * 1994-11-17 1996-09-13 Integral Peripherals Inc ディスク駆動装置における電力節減の方法
US5682273A (en) * 1995-06-30 1997-10-28 International Business Machines Corporation Disk drive for portable computer with adaptive demand-driven power management
US5954820A (en) * 1997-09-26 1999-09-21 International Business Machines Corporation Portable computer with adaptive demand-driven power management
JP3679681B2 (ja) 2000-04-05 2005-08-03 ペンタックス株式会社 電源装置及び電気二重層コンデンサの充電方法
US6798175B2 (en) 2000-04-11 2004-09-28 Pentax Corporation Power supply circuit
JP2004252902A (ja) * 2003-02-21 2004-09-09 Pentax Corp 電源電圧低減方法および電源電圧低減手段、およびｃｃｄ駆動手段

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3654494A (en) * 1968-08-20 1972-04-04 Gulf & Western Industries Capacitor type timing circuit utilizing energized voltage comparator
US3808466A (en) * 1972-06-05 1974-04-30 Rca Corp Capacitive-discharge timing circuit using comparator transistor base current to determine discharge rate
JPS5611052Y2 (ja) * 1973-09-12 1981-03-12
US4053790A (en) * 1976-08-31 1977-10-11 Heath Company Power line switch with time delay turn off
US4104547A (en) * 1977-03-21 1978-08-01 National Semiconductor Corporation Extended range current-to-time converter

Also Published As

Publication number Publication date
DE2843342A1 (de) 1979-04-05
GB2005946B (en) 1982-09-02
US4250413A (en) 1981-02-10
GB2005946A (en) 1979-04-25

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