公开(公告)号：DE69920171T2

公开(公告)日：2005-09-29

申请号：DE69920171

申请日：1999-11-17

Applicant: PHILIPS INTELLECTUAL PROPERTY

Inventor： BACHMANN K ,  RAUSENBERGER BERND ,  WILSON HOWARD ,  KRAUS ALBRECHT ,  BRAUN NORBERT

IPC: H01J65/00 ,  H01J65/04

Abstract: In a capacitively coupled discharge lamp the electrode comprises a dielectric material that during operation is in contact with the discharge. The impedance of the dielectric material is small and its electron affinity is negative. In this way it is realized that the discharge lamp can be operated efficiently at low frequencies (less than 500 KHz).

公开(公告)号：DE10242241A1

公开(公告)日：2004-03-25

申请号：DE10242241

申请日：2002-09-12

Applicant: PHILIPS INTELLECTUAL PROPERTY

Inventor： SCHOLL ROBERT ,  HILBIG REINER ,  RAUSENBERGER BERND

IPC: H01J61/06 ,  H01J61/067 ,  H01J61/12 ,  H01J61/70 ,  H01J61/073

Abstract: Low pressure discharge lamp comprises a gas discharge vessel containing a noble gas filling as buffer gas and an indium halide, thallium halide and/or copper halide, electrodes and devices for producing and maintaining a low pressure gas discharge. The lamp further includes an electron emitter substance made from a compound selected from ABO3, AnC2O5+n or AnD2O3+n (where, A = alkaline earth element(s); B = Ce, Ti, Zr and/or Hf; D = V, Nb and/or Ta; and D = Sc, Y and/or La).

公开(公告)号：DE69920171D1

公开(公告)日：2004-10-21

申请号：DE69920171

申请日：1999-11-17

Applicant: KONINKL PHILIPS ELECTRONICS NV ,  PHILIPS INTELLECTUAL PROPERTY

Inventor： BACHMANN K ,  RAUSENBERGER BERND ,  WILSON HOWARD ,  KRAUS ALBRECHT ,  BRAUN NORBERT

IPC: H01J65/00 ,  H01J65/04

Abstract: In a capacitively coupled discharge lamp the electrode comprises a dielectric material that during operation is in contact with the discharge. The impedance of the dielectric material is small and its electron affinity is negative. In this way it is realized that the discharge lamp can be operated efficiently at low frequencies (less than 500 KHz).

公开(公告)号：DE50011273D1

公开(公告)日：2005-11-10

申请号：DE50011273

申请日：2000-03-28

Applicant: PHILIPS INTELLECTUAL PROPERTY

Inventor： KRAUS ALBRECHT ,  RAUSENBERGER BERND ,  DANNERT HORST

IPC: H01J65/00 ,  H01J65/04

Abstract: The lamp has at least one capacitive input coupling structure (2) consisting of a dielectric with dielectric saturation polarization and an effective surface area, whereby the product of the effective area and the saturation polarization is 10 5 C. The product of the coercive field strength and effective thickness of the dielectric that forms the capacitive input structure less than 200 V.

公开(公告)号：DE69815285T2

公开(公告)日：2004-05-06

申请号：DE69815285

申请日：1998-09-14

Applicant: PHILIPS INTELLECTUAL PROPERTY ,  KONINKL PHILIPS ELECTRONICS NV

Inventor： RAUSENBERGER BERND ,  LEERS DIETER ,  DANNERT HORST ,  LOEHN KLAUS ,  OSSMANN MARTIN

IPC: H01J61/06 ,  H05B41/24 ,  H01J61/56

Abstract: The discharge lamp comprises a piezotransformer and at least one of the lamp electrodes comprises a secondary side of the piezotransformer. Since the piezotransformer functions as a lamp electrode, as a ballast choke and as a transformer, the discharge lamp can be operated by means of a relatively simple and cheap ballast circuit.

公开(公告)号：DE69815285D1

公开(公告)日：2003-07-10

申请号：DE69815285

申请日：1998-09-14

Applicant: PHILIPS INTELLECTUAL PROPERTY ,  KONINKL PHILIPS ELECTRONICS NV

Inventor： RAUSENBERGER BERND ,  LEERS DIETER ,  DANNERT HORST ,  LOEHN KLAUS ,  OSSMANN MARTIN

IPC: H01J61/06 ,  H05B41/24 ,  H01J61/56

Abstract: The discharge lamp comprises a piezotransformer and at least one of the lamp electrodes comprises a secondary side of the piezotransformer. Since the piezotransformer functions as a lamp electrode, as a ballast choke and as a transformer, the discharge lamp can be operated by means of a relatively simple and cheap ballast circuit.