公开(公告)号：DE60022315T2

公开(公告)日：2006-06-29

申请号：DE60022315

申请日：2000-11-09

Applicant: PHILIPS INTELLECTUAL PROPERTY

Inventor： DENISSEN J ,  RONDA R ,  WEILER U ,  GAWRON KLAUS

IPC: H01J61/04 ,  H01J61/10 ,  H01J61/28 ,  H01J61/72

Abstract: A low-pressure mercury-vapor discharge lamp has a discharge vessel with a filling of mercury and an inert gas. Electrodes in the discharge space have electrode shields, which operate at temperatures above 450° C. An inner surface of the electrode shield may have a heat-absorbing coating, for example a carbon film. The electrode shield may be supported by a support wire, at least a part of which is made from stainless steel. A lamp according to the invention has comparatively low mercury consumption.

公开(公告)号：DE60012106T2

公开(公告)日：2005-02-17

申请号：DE60012106

申请日：2000-04-19

Applicant: KONINKL PHILIPS ELECTRONICS NV ,  PHILIPS INTELLECTUAL PROPERTY

Inventor： RONDA R ,  DENISSEN J ,  WEILER U

IPC: H01J61/35 ,  C09K11/02 ,  H01J61/42 ,  H01J61/44 ,  H01J61/46

Abstract: A low-pressure mercury vapor discharge lamp comprises a discharge vessel (10) having a tubular portion (11). The discharge vessel (10) encloses a discharge space (13) provided with a filling of mercury and a rare gas in a gastight manner. The tubular portion (13) of the discharge vessel (10) is provided with a metal oxide layer (15) and a luminescent layer (17) on a surface (14) facing the discharge space (13). The discharge lamp comprises means for maintaining an electric discharge in the discharge vessel (20b). The discharge lamp is characterized in that the luminescent layer (17) comprises an alkali metal oxide. This alkali metal oxide is preferably sodium oxide and/or potassium oxide, and the concentration of the alkali metal oxide is 0.002

公开(公告)号：DE60022315D1

公开(公告)日：2005-10-06

申请号：DE60022315

申请日：2000-11-09

Applicant: PHILIPS INTELLECTUAL PROPERTY

Inventor： DENISSEN J ,  RONDA R ,  WEILER U ,  GAWRON KLAUS

IPC: H01J61/04 ,  H01J61/10 ,  H01J61/28 ,  H01J61/72

Abstract: A low-pressure mercury-vapor discharge lamp has a discharge vessel with a filling of mercury and an inert gas. Electrodes in the discharge space have electrode shields, which operate at temperatures above 450° C. An inner surface of the electrode shield may have a heat-absorbing coating, for example a carbon film. The electrode shield may be supported by a support wire, at least a part of which is made from stainless steel. A lamp according to the invention has comparatively low mercury consumption.

公开(公告)号：DE60012106D1

公开(公告)日：2004-08-19

申请号：DE60012106

申请日：2000-04-19

Applicant: KONINKL PHILIPS ELECTRONICS NV ,  PHILIPS INTELLECTUAL PROPERTY

Inventor： RONDA R ,  DENISSEN J ,  WEILER U

IPC: H01J61/35 ,  C09K11/02 ,  H01J61/42 ,  H01J61/44 ,  H01J61/46

Abstract: A low-pressure mercury vapor discharge lamp comprises a discharge vessel (10) having a tubular portion (11). The discharge vessel (10) encloses a discharge space (13) provided with a filling of mercury and a rare gas in a gastight manner. The tubular portion (13) of the discharge vessel (10) is provided with a metal oxide layer (15) and a luminescent layer (17) on a surface (14) facing the discharge space (13). The discharge lamp comprises means for maintaining an electric discharge in the discharge vessel (20b). The discharge lamp is characterized in that the luminescent layer (17) comprises an alkali metal oxide. This alkali metal oxide is preferably sodium oxide and/or potassium oxide, and the concentration of the alkali metal oxide is 0.002