公开(公告)号：US3782258A

公开(公告)日：1974-01-01

申请号：US3782258D

申请日：1971-12-03

申请人： PHILIPS CORP

发明人： BOEKKOOI A ,  LUURSEMA M ,  TOL T

IPC分类号： G03B15/04 ,  G03B15/03

CPC分类号： G03B15/0468

摘要： The invention relates to an arrangement for igniting a discharge tube provided with an external ignition electrode. According to the invention this discharge tube is ignited with the aid of a mechanically operable piezo-electric element. The invention leads to a simple ignition circuit. In addition, the use of the invention in the field of flashing equipment in photocameras has the advantage that exchangeability is possible so that different kinds of flash lamps can be flashed on one and the same camera.

摘要翻译： 本发明涉及点燃具有外部点火电极的放电管的装置。

公开(公告)号：US3726582A

公开(公告)日：1973-04-10

申请号：US3726582D

申请日：1970-07-20

申请人： PHILIPS CORP

发明人： TOL T ,  DE VRIJER B

IPC分类号： C04B37/02 ,  H01J61/36 ,  H01J9/00

CPC分类号： C04B37/025 ,  C04B37/005 ,  C04B2237/10 ,  C04B2237/343 ,  C04B2237/345 ,  C04B2237/62 ,  C04B2237/765 ,  C04B2237/84 ,  C04B2237/88 ,  H01J61/36

摘要： Method of making an electric gas discharge lamp having an envelope of densely sintered aluminum oxide and employing an alkali metal vapor as the discharge medium. A current lead-in member for an electrode envelope by means of a sealing element of densely sintered aluminum oxide which is sintered to the inner wall of the envelope and is provided with an aperture into which a cylindrical current lead-in supporting at one end an electrode assembly is secured in a gastight manner. The current lead-in member is provided with a cover for the envelope which is sealed to the latter by a sealing glass having a melting point higher than 800*C. and lower than the melting point of the aluminum oxide or the current lead-in member.