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    2.
    发明专利
    未知

    公开(公告)号：DE602005006276D1

    公开(公告)日：2008-06-05

    申请号：DE602005006276

    申请日：2005-05-19

    Applicant: PHILIPS INTELLECTUAL PROPERTY

    Inventor： RITZ ARND ,  MOENCH HOLGER ,  POLLMANN-RETSCH JENS

    IPC: H01J61/56 ,  F21V25/02 ,  F21Y101/00 ,  H01J61/34 ,  H01J61/50

    Abstract: The invention relates to a lamp, e.g. a UHP-Lamp, comprising a burner with an ionizable filling and an amount of mercury contained therein, having at least one closing means ( 40, 50 ) which closes immediately and/or hermetically and/or irreversibly all in- and/or outlets of the lamp to enclose the mercury in the lamp upon detection of an explosion of the burner.

    3.
    发明专利
    未知

    公开(公告)号：DE69921616T2

    公开(公告)日：2005-09-15

    申请号：DE69921616

    申请日：1999-12-02

    Applicant: PHILIPS INTELLECTUAL PROPERTY

    Inventor： DERRA H ,  FISCHER E ,  GANSER G ,  KRUECKEN THOMAS ,  MOENCH HOLGER ,  SNIJKERS ROB

    IPC: H05B41/24 ,  H05B41/282 ,  H05B41/292

    Abstract: 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

    4.
    发明专利
    未知

    公开(公告)号：DE10220509A1

    公开(公告)日：2003-11-20

    申请号：DE10220509

    申请日：2002-05-08

    Applicant: PHILIPS INTELLECTUAL PROPERTY

    Inventor： RIEDERER XAVER ,  DEPPE CARSTEN ,  MOENCH HOLGER

    IPC: G03B21/00 ,  G03B21/14 ,  G09G3/20 ,  G09G3/34 ,  G09G3/36 ,  H05B41/24 ,  H05B41/282 ,  H05B41/292 ,  H05B41/288

    Abstract: 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.

    6.
    发明专利
    未知

    公开(公告)号：DE60329297D1

    公开(公告)日：2009-10-29

    申请号：DE60329297

    申请日：2003-07-03

    Applicant: PHILIPS INTELLECTUAL PROPERTY ,  KONINKL PHILIPS ELECTRONICS NV

    Inventor： POLLMANN-RETSCH JENS ,  MOENCH HOLGER ,  MAES WOUTER J ,  VERSTRAETEN EDMOND M E

    IPC: H01J61/00 ,  H01J61/52 ,  H01J61/86

    Abstract: A discharge lamp, and particularly a high-pressure gas-discharge lamp (an HID (high-intensity discharge) lamp or UHP (ultra-high performance) lamp), having a reflector and a cooling means is described. The cooling means comprises at least one nozzle ( 3 ) by which a flow of gas can be directed onto the discharge lamp, the at least one nozzle ( 3 ) being so arranged that it does not extend, at least to any substantial degree, into a beam path produced by the lamp ( 2 ) and the reflector ( 1 ). In this way, the cooling means does not produce any obstacles on the beam path for the light. With preferred embodiments, it is possible to produce a turbulent flow that surrounds particularly the discharge vessel ( 21 ) of the lamp and that considerably increases the effectiveness of the cooling means. Further embodiments also allow the discharge lamp to be operated in a plurality of different positions without individual regions of the lamp being too little or too severely cooled.

    7.
    发明专利
    未知

    公开(公告)号：DE602005006276T2

    公开(公告)日：2009-05-14

    申请号：DE602005006276

    申请日：2005-05-19

    Applicant: PHILIPS INTELLECTUAL PROPERTY

    Inventor： RITZ ARND ,  MOENCH HOLGER ,  POLLMANN-RETSCH JENS

    IPC: H01J61/56 ,  F21V25/02 ,  F21Y101/00 ,  H01J61/34 ,  H01J61/50

    Abstract: The invention relates to a lamp, e.g. a UHP-Lamp, comprising a burner with an ionizable filling and an amount of mercury contained therein, having at least one closing means ( 40, 50 ) which closes immediately and/or hermetically and/or irreversibly all in- and/or outlets of the lamp to enclose the mercury in the lamp upon detection of an explosion of the burner.

    8.
    发明专利
    未知

    公开(公告)号：DE60322887D1

    公开(公告)日：2008-09-25

    申请号：DE60322887

    申请日：2003-05-05

    Applicant: PHILIPS INTELLECTUAL PROPERTY

    Inventor： RIEDERER XAVER ,  DEPPE CARSTEN ,  MOENCH HOLGER

    IPC: G03B21/00 ,  H05B41/00 ,  G03B21/14 ,  G09G3/20 ,  G09G3/34 ,  G09G3/36 ,  H05B41/24 ,  H05B41/282 ,  H05B41/292

    Abstract: 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.

    9.
    发明专利
    未知

    公开(公告)号：DE60321599D1

    公开(公告)日：2008-07-24

    申请号：DE60321599

    申请日：2003-12-04

    Applicant: PHILIPS INTELLECTUAL PROPERTY ,  KONINKL PHILIPS ELECTRONICS NV

    Inventor： POLLMANN-RETSCH JENS ,  MOENCH HOLGER ,  MAES WOUTER JOZEF ,  VERSTRAETEN EDMOND MARIETTE

    IPC: H05B41/292 ,  F21Y101/00 ,  H05B41/36

    Abstract: A lighting unit is described which has a discharge lamp (1), in particular a high pressure or high intensity discharge (HID) lamp or an ultra high performance (UHP) lamp, a lamp driver (2) and a cooling device (3). To reduce mechanical stresses caused by temperature variations in the lamp (1), one or more operating parameters of the lamp (1) are detected. In addition, a control unit is provided for controlling the lamp driver (2) and/or the cooling device (3) at least during switching on and/or off of the lighting unit in such a way that there is no excursion from a predetermined range of the at least one operating parameter. By selecting the parameter range suitably, the service life of the lamp may be extended considerably or the power of the lamp may be increased while the service life remains the same.

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