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1. (WO2007004101) METHOD OF DRIVING A DISCHARGE LAMP IN A PROJECTION SYSTEM, AND DRIVING UNIT
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/2007/004101 International Application No.: PCT/IB2006/052057
Publication Date: 11.01.2007 International Filing Date: 23.06.2006
IPC:
H05B 41/36 (2006.01)
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
36
Controlling
Applicants:
PHILIPS INTELLECTUAL PROPERTY & STANDARDS GMBH [DE/DE]; Lübeckertordamm 5 20099 Hamburg, DE (DE)
KONINKLIJKE PHILIPS ELECTRONICS N.V. [NL/NL]; Groenewoudseweg 1 NL-5621 BA Eindhoven, NL (AE, AG, AL, AM, AT, AU, AZ, BA, BB, BE, BF, BG, BJ, BR, BW, BY, BZ, CA, CF, CG, CH, CI, CM, CN, CO, CR, CU, CY, CZ, DK, DM, DZ, EC, EE, EG, ES, FI, FR, GA, GB, GD, GE, GH, GM, GN, GQ, GR, GW, HN, HR, HU, ID, IE, IL, IN, IS, IT, JP, KE, KG, KM, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, LU, LV, LY, MA, MC, MD, MG, MK, ML, MN, MR, MW, MX, MZ, NA, NE, NG, NI, NL, NO, NZ, OM, PG, PH, PL, PT, RO, RS, RU, SC, SD, SE, SG, SI, SK, SL, SM, SN, SY, SZ, TD, TG, TJ, TM, TN, TR, TT, TZ, UA, UG, UZ, VC, VN, ZA, ZM, ZW)
DEPPE, Carsten [DE/DE]; DE (UsOnly)
MUNTERS, Tom [BE/DE]; DE (UsOnly)
Inventors:
DEPPE, Carsten; DE
MUNTERS, Tom; DE
Agent:
VOLMER, Georg; Philips Intellectual Property & Standards GmbH Weisshausstr. 2 52066 Aachen, DE
Priority Data:
05105872.530.06.2005EP
Title (EN) METHOD OF DRIVING A DISCHARGE LAMP IN A PROJECTION SYSTEM, AND DRIVING UNIT
(FR) PROCEDE PERMETTANT DE COMMANDER UNE LAMPE A DECHARGE DANS UN SYSTEME DE PROJECTION ET UNITE DE COMMANDE
Abstract:
(EN) The invention describes a method of driving a discharge lamp (1) in a projection system (10), wherein, in a feed-forward control process, system status data (SDL, SDF, SDV) comprising static information pertaining to the design of the projection system and/or dynamic information pertaining to the projection system and/or dynamic information pertaining to the lamp operation are obtained. Based on the system status data (SDL, SDF, SDV), a momentary target light waveshape (LWT, LWT') required by the projection system (10) and a waveshape correcting function are determined. Subsequently, the actual current (I) of the discharge lamp (1) is controlled regulated according to a momentary required waveshape (RW) which is determined based on the target light waveshape (LWT, LWT') and the waveshape correcting function. Moreover the invention describes an appropriate driving unit (11) for driving a discharge lamp (1) and a projection system (10), comprising such a driving unit (11).
(FR) L'invention concerne un procédé permettant de commander une lampe à décharge (1) dans un système de projection (10). Dans un processus de régulation par l'amont, on obtient les données d'état du système (SDL, SDF, SDV) comprenant les informations statiques relatives à la conception du système de projection et/ou les informations dynamiques relatives au système de projection et/ou les informations dynamiques relatives au fonctionnement de la lampe. Sur la base des données d'état du système (SDL, SDF, SDV), une forme d'onde de lumière cible instantanée (LWT, LWT') requise par le système de projection (10) et une fonction de correction de la forme d'onde sont déterminées. Par la suite, le courant réel (I) de la lampe à décharge (1) est régulé conformément à une forme d'onde cible requise instantanée (RW) qui est déterminée sur la base de la forme d'onde de lumière cible (LWT, LWT') et de la fonction de correction de la forme d'onde. L'invention concerne également une unité de commande appropriée (11) permettant de commander une lampe à décharge (1) et un système de projection (10) comprenant cette unité de commande (11).
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Designated States: 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, HN, HR, HU, ID, IL, IN, IS, JP, KE, KG, KM, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, LU, LV, LY, MA, MD, MG, MK, MN, MW, MX, MZ, NA, NG, NI, NO, NZ, OM, PG, PH, PL, PT, RO, RS, RU, SC, SD, SE, SG, SK, SL, SM, SY, 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, LS, MW, MZ, NA, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HU, IE, IS, IT, LT, LU, LV, MC, NL, PL, PT, RO, SE, SI, SK, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)
Also published as:
KR1020080030063EP1905280JP2008545154US20100134765CN101213884