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1. (WO2018048340) DETERMINATION OF STARTING TIME FOR FLASH EMITTED FROM FLASH TUBE
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Pub. No.: WO/2018/048340 International Application No.: PCT/SE2017/050878
Publication Date: 15.03.2018 International Filing Date: 05.09.2017
IPC:
G03B 15/05 (2006.01) ,G01R 33/00 (2006.01) ,G03B 15/00 (2006.01) ,G03B 15/02 (2006.01) ,G03B 15/03 (2006.01) ,H05B 41/30 (2006.01)
G PHYSICS
03
PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
B
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
15
Special procedures for taking photographs; Apparatus therefor
02
Illuminating scene
03
Combinations of cameras with lighting apparatus; Flash units
05
Combinations of cameras with electronic flash apparatus; Electronic flash units
G PHYSICS
01
MEASURING; TESTING
R
MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
33
Arrangements or instruments for measuring magnetic variables
G PHYSICS
03
PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
B
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
15
Special procedures for taking photographs; Apparatus therefor
G PHYSICS
03
PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
B
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
15
Special procedures for taking photographs; Apparatus therefor
02
Illuminating scene
G PHYSICS
03
PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
B
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
15
Special procedures for taking photographs; Apparatus therefor
02
Illuminating scene
03
Combinations of cameras with lighting apparatus; Flash units
H ELECTRICITY
05
ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
B
ELECTRIC HEATING; ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR
41
Circuit arrangements or apparatus for igniting or operating discharge lamps
14
Circuit arrangements
30
in which the lamp is fed by pulses, e.g. flash lamp
Applicants:
PROFOTO AB [SE/SE]; Box 1264 172 25 Sundbyberg, SE
Inventors:
SVENSSON, Johnny; SE
GRUBBSTRÖM, Carl Johan; SE
Agent:
ZACCO SWEDEN AB; P.O. Box 5581 Valhallavägen 117N 114 85 Stockholm, SE
Priority Data:
1651217-009.09.2016SE
Title (EN) DETERMINATION OF STARTING TIME FOR FLASH EMITTED FROM FLASH TUBE
(FR) DÉTERMINATION DE TEMPS DE DÉMARRAGE DESTINÉ À UN FLASH ÉMIS À PARTIR D'UN TUBE FLASH
Abstract:
(EN) The invention discloses a method for determining a starting time for a flash emitted from a flash tube (1 ) of a flash apparatus (200). The flash apparatus (200) comprises a triggering circuit (10), and a drive circuit (20). The method comprises the steps of measuring an electric current through and/or a voltage across an electrical component (3) of the drive circuit (20), and determining the starting time for the flash based on the measured electric current and/or voltage.
(FR) L'invention concerne un procédé de détermination d'un temps de démarrage destiné à un flash émis à partir du tube flash (1) d'un appareil flash (200). L'appareil flash (200) comprend un circuit de déclenchement (10), et un circuit d'attaque (20). Le procédé comprend les étapes consistant à mesurer un courant électrique à travers et/ou une tension à travers un composant électrique (3) du circuit d'attaque (20), et à déterminer le temps de démarrage destiné au flash sur la base du courant et/ou de la tension électrique mesurés.
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Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)