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31. 发明专利

ES2368469T3 DISPOSITIVO LASER DE CAVIDAD EXTERNA QUE EMITE EN SUPERFICIE. 未知
公开(公告)号：ES2368469T3
公开(公告)日：2011-11-17
申请号：ES08763430
申请日：2008-07-01
申请人： PHILIPS INTELLECTUAL PROPERTY , KONINKL PHILIPS ELECTRONICS NV
发明人： BAIER JOHANNES , MOENCH HOLGER
IPC分类号： H01S5/183 , H01S3/109 , H01S5/14
摘要： 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.

32. 发明专利

DE69921616D1 未知
公开(公告)号：DE69921616D1
公开(公告)日：2004-12-09
申请号：DE69921616
申请日：1999-12-02
申请人： KONINKL PHILIPS ELECTRONICS NV , PHILIPS INTELLECTUAL PROPERTY
发明人： DERRA H , FISCHER E , GANSER G , KRUECKEN THOMAS , MOENCH HOLGER , SNIJKERS ROB
IPC分类号： H05B41/24 , H05B41/282 , H05B41/292
摘要： The invention is concerned with a circuit arrangement for operating a high pressure discharge lamp comprising input terminals (K1, K2) for connection to a supply voltage source, output terminals for connecting the high pressure discharge lamp, and means, coupled to the input terminals, for supplying an alternating lamp current to the high pressure discharge lamp. The lamp current has per period a mean value Im. According to the invention the lamp current in each period at its start is lowered with respect to the mean value Im so as to allow for stable diffuse attachment on the cathodic phase electrode. The circuit arrangement is in particular suited for operating a lamp in an optical projection system

33. 发明专利

DE69912102T2 未知
公开(公告)号：DE69912102T2
公开(公告)日：2004-07-29
申请号：DE69912102
申请日：1999-12-01
申请人： KONINKL PHILIPS ELECTRONICS NV , PHILIPS INTELLECTUAL PROPERTY
发明人： DERRA H , FISCHER E , GANSER G , KRUCKEN THOMAS , MOENCH HOLGER , SNIJKERS ROB
IPC分类号： H05B41/282 , H05B41/16 , H05B41/292
摘要： 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.

34. 发明专利

DE69912101D1 未知
公开(公告)号：DE69912101D1
公开(公告)日：2003-11-20
申请号：DE69912101
申请日：1999-12-13
申请人： KONINKL PHILIPS ELECTRONICS NV , PHILIPS INTELLECTUAL PROPERTY
发明人： HEVINGA A , MOENCH HOLGER , RIEDERER XAVER
IPC分类号： G02F1/13357 , H04N5/74 , H05B41/14 , H05B41/16 , H05B41/288 , H05B41/392
摘要： A circuit arrangement for operating a high pressure discharge lamp includes input terminals for connection to a supply voltage source, lamp connection terminals for connection of the lamp, and a power supply coupled to the input terminals. The power supply provides a current to the lamp in the form of successive periods of current and includes a pulse generating element for generating a current pulse superpositioned on the periods of the current to the lamp. The pulse generation element is synchronized with an image writing signal.

35. 发明专利

DE602006008616D1 未知
公开(公告)号：DE602006008616D1
公开(公告)日：2009-10-01
申请号：DE602006008616
申请日：2006-06-19
申请人： PHILIPS INTELLECTUAL PROPERTY , KONINKL PHILIPS ELECTRONICS NV
发明人： DEPPE CARSTEN , MOENCH HOLGER , POLLMANN-RETSCH , MUNTERS TOM , VAN DEN BERGH JOHN-JOHN PIETER
IPC分类号： H05B41/26
摘要： The invention describes a method of shutting down a high pressure discharge lamp (1) in which a pair of electrodes (2) are disposed in an arc tube (3). This method comprises the steps of reducing the lamp power (PA) to a reduced operation level that enables the maintenance of an arc discharge between the electrodes (2) in a transition state from a lighting state to an extinguished state; driving the lamp (1) at the reduced operation level such that that the lamp (1) cools down; monitoring the lamp voltage (U) during this lamp power reduction process and during driving of the lamp (1) at the reduced operation level with regard to a defined discharge process stability criteria and increasing the lamp power (PA) if the discharge process stability criterion is not satisfied; completely shutting down the lamp power (PA) after sufficient duration to allow the lamp (1) to cool down to a state in which the gas pressure is such that the lamp (1) could be reignited shortly after being extinguished. Moreover the invention describes an appropriate driving unit (7) for driving a high pressure discharge lamp (1) and an image rendering system (40), particularly a projector system, comprising such a driving unit (4).

36. 发明专利

DE69912102D1 未知
公开(公告)号：DE69912102D1
公开(公告)日：2003-11-20
申请号：DE69912102
申请日：1999-12-01
申请人： KONINKL PHILIPS ELECTRONICS NV , PHILIPS INTELLECTUAL PROPERTY
发明人： DERRA H , FISCHER E , GANSER G , KRUCKEN THOMAS , MOENCH HOLGER , SNIJKERS ROB
IPC分类号： H05B41/282 , H05B41/16 , H05B41/292
摘要： 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.

37. 发明专利

JP2003123991A ELECTRONIC CIRCUIT FOR OPERATING HID LAMP AND IMAGE PROJECTOR 审中-公开
公开(公告)号：JP2003123991A
公开(公告)日：2003-04-25
申请号：JP2002219153
申请日：2002-07-29
申请人： KONINKL PHILIPS ELECTRONICS NV
发明人： LUERKENS PETER , DEPPE CARSTEN , MOENCH HOLGER
IPC分类号： G03B21/14 , H05B37/02 , H05B37/03 , H05B41/231 , H05B41/392
摘要： PROBLEM TO BE SOLVED: To develop an electronic circuit for operating an HID lamp capable of controlling the luminance through the lamp life and using a sensor of an easier structure and thus an inexpensive sensor, and an image projector comprising such an electronic circuit. SOLUTION: This electronic circuit comprises a lamp ballast for supplying a controlled lamp current for operating the HID lamp according to a control signal, and a luminance sensor for generating and supplying a sensor signal, the sensor signal representing the light quantity emitted in the position of the luminance sensor by the HID lamp. This circuit further comprises a filter constituted as a high-pass filter for supplying the control signal by the high-pass filter processing of the sensor signal.

38. 发明专利

AT514210T 未知
公开(公告)号：AT514210T
公开(公告)日：2011-07-15
申请号：AT08763430
申请日：2008-07-01
申请人： KONINKL PHILIPS ELECTRONICS NV
发明人： BAIER JOHANNES , MOENCH HOLGER
IPC分类号： H01S5/183 , H01S3/109 , H01S5/14
摘要： A surface-emitting extended cavity laser with intracavity frequency conversion is provided with at least one surface-emitting laser element with multiple layers to obtain laser light at a fundamental frequency, reflector means, spaced from the laser element to form an external cavity, a frequency conversion device, arranged within the external cavity to generate light at a second frequency and tunable optical band-pass filter means, arranged within the external cavity and detector means, where said optical band-pass filter means are tunable upon a signal, which is obtained by the detector means to enable a frequency control at the fundamental frequency.

39. 发明专利

AT416497T 未知
公开(公告)号：AT416497T
公开(公告)日：2008-12-15
申请号：AT04744803
申请日：2004-08-20
申请人： KONINKL PHILIPS ELECTRONICS NV
发明人： MOENCH HOLGER , HEUSLER GERO
IPC分类号： H01S3/063 , H01S3/094 , H01S3/0941 , H01S3/16 , H01S3/23 , H01S5/02 , H01S5/40 , H04N9/31
摘要： The invention relates to a semiconductor diode laser used to pump a waveguide and their use as light source. A waveguide laser ( 15 ) according to the present invention producing visible wavelength radiation from IR wavelength radiation comprising: a) at least one semiconductor diode laser or diode laser bar ( 8 ) producing IR wavelength radiation; b) at least one upconversion layer ( 13 a , 13 b , 13 c) having a thickness of at least 1 mum thicker than the thickness of the emitting layer in the semiconductor diode laser that converts the IR wavelength radiation into visible wavelengths by an upconversion process of photon absorption energy transfer followed by emission; c) at least one optical resonator which recirculates the visible wavelength radiation and/or at least one optical resonator which recirculates the IR wavelength radiation; whereby-the laser diode or laser diode bar and the upconversion layer(s) are arranged on the same substrate or each on a separate substrate ( 12, 14 );-the laser diode or laser diode bar and the upconversion layer(s) are adjacent arranged, whereby a gap between the adjacent arranged diode laser bar and the upconversion layer(s) is formed; or-the laser diode or laser diode bar and the upconversion layer(s) are contacting arranged in this order, and whereby the waveguide laser has a beam quality M2 of >=2 and

40. 发明专利

AT405136T 未知
公开(公告)号：AT405136T
公开(公告)日：2008-08-15
申请号：AT03720782
申请日：2003-05-05
申请人： KONINKL PHILIPS ELECTRONICS NV
发明人： RIEDERER XAVER , DEPPE CARSTEN , MOENCH HOLGER
IPC分类号： G03B21/00 , H05B41/00 , G03B21/14 , G09G3/20 , G09G3/34 , G09G3/36 , H05B41/24 , H05B41/282 , H05B41/292
摘要： A method and a circuit arrangement for the operation of a high-pressure gas discharge lamp (HID [high intensity discharge] lamp or UHP [ultra high performance] lamp) is described, which lamp is particularly suitable for illuminating projection displays with sequential color rendering (for example LCOS or SCR-DMD systems) with a pulsatory lamp current. Artefacts in the color rendering are avoided through the generation of at least one compensation pulse of a given amplitude and a given timing and through superimposition thereof on the lamp current.

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