WO2005039252A3 - Battery saving flash charger control - Google Patents

Battery saving flash charger control Download PDF

Info

Publication number
WO2005039252A3
WO2005039252A3 PCT/US2004/030751 US2004030751W WO2005039252A3 WO 2005039252 A3 WO2005039252 A3 WO 2005039252A3 US 2004030751 W US2004030751 W US 2004030751W WO 2005039252 A3 WO2005039252 A3 WO 2005039252A3
Authority
WO
WIPO (PCT)
Prior art keywords
circuit
flash
capacitor
voltage
light
Prior art date
Application number
PCT/US2004/030751
Other languages
French (fr)
Other versions
WO2005039252A2 (en
Inventor
Douglas William Constable
Original Assignee
Eastman Kodak Co
Douglas William Constable
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 Eastman Kodak Co, Douglas William Constable filed Critical Eastman Kodak Co
Priority to JP2006533938A priority Critical patent/JP2007507749A/en
Publication of WO2005039252A2 publication Critical patent/WO2005039252A2/en
Publication of WO2005039252A3 publication Critical patent/WO2005039252A3/en

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
    • 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
    • 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

A flash charging circuit comprising a flash light discharge circuit having a light emitting element electrically connected to a flash capacitor and a flash triggering circuit connected to the flash light discharge circuit. The flash triggering circuit has a trigger signal generating circuit generating a signal that enables energy from the energy storage device to be converted into light by the light-emitting element. A voltage conversion circuit connected between a battery and the flash capacitor converts energy from a source voltage into a higher voltage to charge the flash capacitor. A timer circuit causes the voltage conversion circuit to operate when the voltage at a timing capacitor is within a range of voltages. Said timer circuit has a time constant circuit connected to the timing capacitor to discharge energy stored in the timing capacitor at a predetermined rate. A reset circuit resets the timing capacitor voltage.
PCT/US2004/030751 2003-10-06 2004-09-21 Battery saving flash charger control WO2005039252A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2006533938A JP2007507749A (en) 2003-10-06 2004-09-21 Battery chargeable flash charge control

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/679,803 US6826365B1 (en) 2003-10-06 2003-10-06 Battery saving flash charger control
US10/679,803 2003-10-06

Publications (2)

Publication Number Publication Date
WO2005039252A2 WO2005039252A2 (en) 2005-04-28
WO2005039252A3 true WO2005039252A3 (en) 2005-06-23

Family

ID=33452794

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2004/030751 WO2005039252A2 (en) 2003-10-06 2004-09-21 Battery saving flash charger control

Country Status (4)

Country Link
US (1) US6826365B1 (en)
JP (1) JP2007507749A (en)
CN (1) CN1864446A (en)
WO (1) WO2005039252A2 (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7573212B2 (en) * 2003-01-22 2009-08-11 Avis Deborah K Automatic power control module for battery powered devices
US20070217779A1 (en) * 2006-03-14 2007-09-20 Haas William R Recapture of electrical charge from a capacitor to a battery
DE102006013148A1 (en) * 2006-03-20 2007-09-27 Eduard Wille Gmbh & Co. Kg Torque tool with power amplifier
JP2008261896A (en) * 2007-04-10 2008-10-30 Sony Corp Imaging apparatus, stroboscopic device and charge control method
JP5166001B2 (en) * 2007-11-16 2013-03-21 オンセミコンダクター・トレーディング・リミテッド Light emitting element driving circuit and mobile phone
US8031838B2 (en) 2009-01-29 2011-10-04 The Invention Science Fund I, Llc Diagnostic delivery service
US8130904B2 (en) 2009-01-29 2012-03-06 The Invention Science Fund I, Llc Diagnostic delivery service
US9125982B2 (en) * 2009-09-09 2015-09-08 Flowonix Medical Incorporated Methods and systems for providing metered doses of a compound to an individual
CN103108428A (en) * 2013-01-29 2013-05-15 宁波金辉摄影器材有限公司 Energy saving system of photoflood lamp
DE102015208911A1 (en) * 2014-11-25 2016-05-25 Hyundai Motor Company Battery charger and method of an electric vehicle
JP7017433B2 (en) * 2018-02-22 2022-02-08 スタンレー電気株式会社 LED strobe
CN111295003B (en) * 2018-11-21 2021-08-31 浙江宇视科技有限公司 Flashing lamp and flashing system

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4479076A (en) * 1980-10-15 1984-10-23 West Electric Co., Ltd. Power saving device for electronic flash
US4486690A (en) * 1981-11-24 1984-12-04 Fuji Koeki Kabushiki Kaisha Test flash device for flash discharger
US4522479A (en) * 1982-12-27 1985-06-11 Canon Kabushiki Kaisha Flash apparatus with power supply control device

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59957B2 (en) 1976-11-09 1984-01-09 株式会社セコ−技研 electronic light emitter
US4323822A (en) 1977-09-25 1982-04-06 Fuji Koeki Corporation Electric flash device
US4441774A (en) 1980-05-14 1984-04-10 Nippon Kogaku K.K. Flash device of a camera
US4361389A (en) 1982-01-15 1982-11-30 Eastman Kodak Company Camera-responsive charging apparatus for an electronic strobe flash unit
JPS5936233A (en) 1982-08-25 1984-02-28 Fuji Koeki Kk Photometric circuit of flashgun
US4566769A (en) 1982-12-29 1986-01-28 Olympus Optical Co., Ltd. Power supply unit for electronic flash
JPS62164323U (en) 1986-04-08 1987-10-19
US4924149A (en) 1986-12-23 1990-05-08 Asahi Kogaku Kogyo Kabushiki Kaisha Apparatus for controlling the charging of a main capacitor of a flash unit
US5045876A (en) 1988-08-03 1991-09-03 Canon Kabushiki Kaisha Camera with flash device
FR2644663B1 (en) 1989-03-15 1994-02-25 Asahi Kogaku Kogyo Kk DEVICE FOR CONTROLLING A CAMERA FLASH
USRE36239E (en) 1989-03-15 1999-06-29 Asahi Kogaku Kogyo Kabushiki Kaisha Strobe control apparatus
US5574337A (en) 1994-06-30 1996-11-12 Eastman Kodak Company Single touch flash charger control
US5781804A (en) 1996-11-19 1998-07-14 Eastman Kodak Company Single touch flash charger circuit with timer control
JPH1184511A (en) 1997-09-10 1999-03-26 Fuji Photo Film Co Ltd Optical data exposure circuit
US6150770A (en) * 1998-02-25 2000-11-21 Canon Kabushiki Kaisha Flash apparatus
US6345151B1 (en) * 1998-06-30 2002-02-05 Fuji Photo Film Co., Ltd. Lens-fitted film unit with IC memory and method of writing data in IC memory
US6249648B1 (en) * 1999-09-10 2001-06-19 Eastman Kodak Company Camera flash circuit with optical data recording circuit

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4479076A (en) * 1980-10-15 1984-10-23 West Electric Co., Ltd. Power saving device for electronic flash
US4486690A (en) * 1981-11-24 1984-12-04 Fuji Koeki Kabushiki Kaisha Test flash device for flash discharger
US4522479A (en) * 1982-12-27 1985-06-11 Canon Kabushiki Kaisha Flash apparatus with power supply control device

Also Published As

Publication number Publication date
US6826365B1 (en) 2004-11-30
WO2005039252A2 (en) 2005-04-28
JP2007507749A (en) 2007-03-29
CN1864446A (en) 2006-11-15

Similar Documents

Publication Publication Date Title
CN204810638U (en) Infrared sensing corridor of solar electric source LED lamp of adjusting luminance
WO2005039252A3 (en) Battery saving flash charger control
TW200608666A (en) Power source device and charge controlling method to be used in same
US5287257A (en) Hazard warning device
PE20000713A1 (en) BATTERY THAT HAS A BUILT-IN CONTROLLER
KR101557989B1 (en) Led footway brick of outputting a sound
CN204042700U (en) Solar energy alarm light fixture
US9018848B2 (en) Method of powering flashlight tailcaps
CN201844212U (en) LED (light emitting diode) torch
TW200618471A (en) Power-low reset circuit
CN103203102B (en) Photoelectric environment-friendly high-simulation firecracker
EP1765038A2 (en) Light assembly with rechargeable battery
KR20100119952A (en) Solar road marker
US9658632B2 (en) Systems, methods, and devices for bootstrapped power circuits
MXPA05011678A (en) Booster-powered valve system.
WO2007138252A3 (en) Rechargeable battery assembly
US20070046215A1 (en) Light assembly with power discharge unit
CN105953115A (en) Brightness-adjustable flashlight
CN100386943C (en) Solar energy charging type multifunction lighting device
CN203234159U (en) Solar walking stick
CN201555134U (en) Solar energy light-operated lighting device
CN202679711U (en) Light emitting diode drive circuit
JP2005253166A5 (en)
CN205029919U (en) Human sensing exhibition position LED banks of solar electric source
CN108105612A (en) One kind is camped flashlight

Legal Events

Date Code Title Description
WWE Wipo information: entry into national phase

Ref document number: 200480029072.3

Country of ref document: CN

AK Designated states

Kind code of ref document: A2

Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BW BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE EG ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NA NI NO NZ OM PG PH PL PT RO RU SC SD SE SG SK SL SY TJ TM TN TR TT TZ UA UG US UZ VC VN YU ZA ZM ZW

AL Designated countries for regional patents

Kind code of ref document: A2

Designated state(s): BW GH GM KE LS MW MZ NA SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LU MC NL PL PT RO SE SI SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG

121 Ep: the epo has been informed by wipo that ep was designated in this application
WWE Wipo information: entry into national phase

Ref document number: 2006533938

Country of ref document: JP

122 Ep: pct application non-entry in european phase