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公开(公告)号：DE60321894D1
公开(公告)日：2008-08-14
申请号：DE60321894
申请日：2003-03-07
Applicant: PHILIPS INTELLECTUAL PROPERTY
Inventor： RITZ ARND , MOENCH HOLGER
Abstract: A reflector lamp is described which consist essentially of a light source, in particular in the form of a high-pressure gas discharge lamp (HID [high intensity discharge] lamp or UHP [ultra high performance] lamp), as well as a main or secondary reflector ( 12 ), and a primary reflector ( 25 ) by means of which light from the light source ( 22 ) can be reflected through the light source ( 22 ) onto the main reflector ( 12 ). The primary reflector ( 25 ) is arranged such that those regions of the main reflector ( 12 ) are obscured which are optically inactivated regions, for example because of a lead-through and/or a fastening device for the lamp, which have no reflection properties, or which have reflection properties that adversely affect the radiation characteristic of the reflector lamp. The reflector lamp is particularly suitable for projection applications because of its high luminous efficacy. Furthermore, a substantially automated and accordingly cost-effective assembly of the lamp is possible.
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公开(公告)号：DE602004012450D1
公开(公告)日：2008-04-24
申请号：DE602004012450
申请日：2004-12-16
Applicant: PHILIPS INTELLECTUAL PROPERTY
Inventor： MOENCH HOLGER , PEKARSKI PAVEL , STOFFELS JAN ALFONS JULIA
IPC: H05B41/292 , H01J61/073 , H01J61/86
Abstract: A method and a circuit arrangement for operating a discharge lamp, in particular during the first hours of operation after lamp manufacture, are described. The method and the circuit arrangement are provided in particular for high-pressure gas discharge lamps (HID or high intensity discharge lamps or UHP or ultra high performance lamps). Furthermore, a lighting unit with a discharge lamp and such a circuit arrangement and a projection system with a projection display and such a lighting unit are described. Switching-over between various modes of operation with different operating frequencies serves to avoid that the burning voltage of the lamp drops into a region of a minimum voltage of a lamp driver unit below which the latter can no longer drive the lamp with its rated power or a desired power.
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公开(公告)号：DE10244821A1
公开(公告)日：2004-04-01
申请号：DE10244821
申请日：2002-09-26
Applicant: PHILIPS INTELLECTUAL PROPERTY
Inventor： DEPPE CARSTEN , LUERKENS PETER , MOENCH HOLGER
IPC: H04N9/31 , H05B41/288 , H05B41/292 , G03B21/00
Abstract: A projection system for image reproduction includes at least one lamp and sensor for generating a sensor signal for monitoring changes in the luminous flux generated by the lamp and for compensating these changes through a suitable control of the image reproduction. The projection system further includes a device for eliminating substantially periodic interference components from the sensor signal generated by the sensor. These interference components may be generated by an optical component such as a color modulator of the projection system. The projection system provides substantially interference-free compensation of fluctuations in the luminous flux generated by the lamp, for example, owing to an unstable arc discharge. Further, the positioning of the sensor in the projection system may not be critical.
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公开(公告)号：DE69912102D1
公开(公告)日：2003-11-20
申请号：DE69912102
申请日：1999-12-01
Inventor： DERRA H , FISCHER E , GANSER G , KRUCKEN THOMAS , MOENCH HOLGER , SNIJKERS ROB
IPC: H05B41/282 , H05B41/16 , H05B41/292
Abstract: A circuit arrangement is provided for operating a high pressure discharge lamp with a lamp current which, in successive periods, has opposite polarities. The lamp is provided with at least two main electrodes being spaced an electrode distance from each other. The circuit arrangement includes input terminals for connection to a supply source, output terminals for connection to the high pressure discharge lamp, and an element, coupled to the input terminals, for supplying the lamp current to the high pressure discharge lamp, which current, in successive periods, has a predetermined shape. The circuit arrangement is provided with an element for detecting a first parameter indicative of the electrode distance and forming a first signal dependent on the first parameter and with an element for reshaping the lamp current, in successive periods, in dependence of the thus formed first signal.
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公开(公告)号：DE10211015A1
公开(公告)日：2003-09-25
申请号：DE10211015
申请日：2002-03-13
Applicant: PHILIPS INTELLECTUAL PROPERTY
Inventor： RITZ ARND , MOENCH HOLGER
Abstract: A reflector lamp is described which consist essentially of a light source, in particular in the form of a high-pressure gas discharge lamp (HID [high intensity discharge] lamp or UHP [ultra high performance] lamp), as well as a main or secondary reflector ( 12 ), and a primary reflector ( 25 ) by means of which light from the light source ( 22 ) can be reflected through the light source ( 22 ) onto the main reflector ( 12 ). The primary reflector ( 25 ) is arranged such that those regions of the main reflector ( 12 ) are obscured which are optically inactivated regions, for example because of a lead-through and/or a fastening device for the lamp, which have no reflection properties, or which have reflection properties that adversely affect the radiation characteristic of the reflector lamp. The reflector lamp is particularly suitable for projection applications because of its high luminous efficacy. Furthermore, a substantially automated and accordingly cost-effective assembly of the lamp is possible.
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Patent Agency Ranking
公开(公告)号：AU2003208508A1
公开(公告)日：2003-09-22
申请号：AU2003208508
申请日：2003-03-07
Applicant: PHILIPS INTELLECTUAL PROPERTY
Inventor： MOENCH HOLGER , RITZ ARND
Abstract: A reflector lamp is described which consist essentially of a light source, in particular in the form of a high-pressure gas discharge lamp (HID [high intensity discharge] lamp or UHP [ultra high performance] lamp), as well as a main or secondary reflector ( 12 ), and a primary reflector ( 25 ) by means of which light from the light source ( 22 ) can be reflected through the light source ( 22 ) onto the main reflector ( 12 ). The primary reflector ( 25 ) is arranged such that those regions of the main reflector ( 12 ) are obscured which are optically inactivated regions, for example because of a lead-through and/or a fastening device for the lamp, which have no reflection properties, or which have reflection properties that adversely affect the radiation characteristic of the reflector lamp. The reflector lamp is particularly suitable for projection applications because of its high luminous efficacy. Furthermore, a substantially automated and accordingly cost-effective assembly of the lamp is possible.
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公开(公告)号：DE10209631A1
公开(公告)日：2003-09-18
申请号：DE10209631
申请日：2002-03-05
Applicant: PHILIPS INTELLECTUAL PROPERTY
Inventor： LUERKENS PETER , MOENCH HOLGER
IPC: H05B41/282 , H05B41/292
Abstract: The invention relates to an electronic circuit and a method of supplying energy to a high-pressure gas-discharge lamp H, 65, 75 . The electronic circuit comprises a line-supply input section 62, 72 to receive and convert an a.c. voltage from an a.c. line-supply system 61, 71 , an energy storage means 63, 73 to store the energy put out by the line-supply input section 62, 72 and a lamp-current regulating unit 64, 74 that is supplied with an input voltage U 1 by the line-supply input section 62, 72 via the energy storage means 63, 73 and that makes available a lamp current I 2 for a high-pressure gas-discharge lamp II, 65, 75 . To make it possible for the energy storage means 63, 73 to be particularly small, it is proposed that the lamp-current regulating unit 64, 74 have a power section L, D, C, S, A 1 , A 2 , K having a transconductive property. If there is a drop in the input voltage U 1 , this property then automatically produces a reduction in the lamp current I 2 made available to a high-pressure gas-discharge lamp 65, 75 , H. This ensures a particularly fast adjustment to voltage fluctuations. The invention also relates to a corresponding method.
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公开(公告)号：DE10200026A1
公开(公告)日：2003-07-17
申请号：DE10200026
申请日：2002-01-02
Applicant: PHILIPS INTELLECTUAL PROPERTY
Inventor： MOENCH HOLGER , STOFFELS JAN
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公开(公告)号：AU2002353363A8
公开(公告)日：2003-07-15
申请号：AU2002353363
申请日：2002-12-18
Applicant: PHILIPS INTELLECTUAL PROPERTY
Inventor： STOFFELS JAN A J , MOENCH HOLGER
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公开(公告)号：ES2368469T3
公开(公告)日：2011-11-17
申请号：ES08763430
申请日：2008-07-01
Inventor： BAIER JOHANNES , MOENCH HOLGER
Abstract: Dispositivo láser de cavidad externa que emite en superficie con conversión de frecuencia intracavidad que comprende: al menos un elemento (1) láser que emite en superficie con múltiples capas, en el que están dispuestas al menos una capa (1a) de ganancia y una capa (1b) reflectante para obtener luz láser a una frecuencia fundamental, medios reflectores, espaciados del elemento (1) láser que emite en superficie para formar una cavidad (12) externa, un dispositivo (3) de conversión de frecuencia, dispuesto en el interior de la cavidad (12) externa para generar luz a una segunda frecuencia, que es diferente de la frecuencia fundamental, y caracterizado por medios de filtro paso banda ópticos sintonizables, dispuestos en el interior de la cavidad (12) externa, y medios detectores, en el que dichos medios de filtro paso banda ópticos pueden sintonizarse a partir de una señal, que se obtiene por los medios detectores.
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