公开(公告)号：US20030122490A1

公开(公告)日：2003-07-03

申请号：US10369162

申请日：2003-02-19

Applicant: General Electric Company

Inventor： Douglas Seredich ,  Curtis E. Scott ,  Charles Greskovich ,  Todd R. Springer

IPC: H01J017/16 ,  H01J061/30

CPC classification number: H01J61/361 ,  H01J9/247 ,  H01J9/266 ,  H01J61/30 ,  H01J61/827

Abstract: An arc tube for a ceramic metal halide lamp includes a hollow first body member (40) that is tapered along a majority of its length to aid in removing the molded component from a pin during assembly. An open end (46) of the first body member has a constant diameter (60) allowing it to be joined to a constant diameter portion (72) of the second body member or end cap (70). The mating constant diameter portions ensure that the hollow first body member can be monolithically joined with the end cap with a reduced level of seal voids.

Abstract translation: 用于陶瓷金属卤化物灯的电弧管包括中空的第一本体构件（40），其沿其大部分长度是锥形的，以有助于在组装期间从销中移除模制构件。 第一主体构件的开口端（46）具有允许其连接到第二主体构件或端盖（70）的恒定直径部分（72）的恒定直径（60）。 配合的恒定直径部分确保中空的第一主体部件能够与端盖整体接合而具有降低的密封空隙水平。

公开(公告)号：US20030189409A1

公开(公告)日：2003-10-09

申请号：US10063279

申请日：2002-04-08

Applicant: General Electric Company

Inventor： Curtis E. Scott ,  Judith A. Scott ,  Edward E. Hammer ,  Jon B. Jansma

IPC: H01J017/20

CPC classification number: H01J61/35

Abstract: A mercury vapor discharge fluorescent lamp is provided that has a mercury barrier. The mercury barrier is effective to inhibit mercury atoms from absorbing into the glass envelope and amalgamating with sodium atoms in the envelope. The mercury barrier is substantially non-mercury absorptive, both when the lamp is on and when it is off.

Abstract translation: 提供具有汞屏障的汞蒸汽放电荧光灯。 汞屏障有效地抑制汞原子吸收到玻璃封套中，并与信封中的钠原子合并。 水银屏障基本上是非汞吸收的，无论是当灯管接通还是断开时。

公开(公告)号：US20020171363A1

公开(公告)日：2002-11-21

申请号：US09812432

申请日：2001-03-20

Applicant: General Electric Company

Inventor： Curtis E. Scott ,  Mary Sue Kaliszewski ,  Charles D. Greskovich ,  Harry M. Laska

IPC: H01J061/36

CPC classification number: C04B41/009 ,  C04B35/115 ,  C04B41/5361 ,  C04B41/91 ,  C04B2111/805 ,  H01J5/04 ,  H01J9/247 ,  H01J61/302 ,  H01J61/827

Abstract: A high transmittance polycrystalline alumina arc tube for a metal halide discharge lamp is formed by treating an alumina arc tube material having a few percent of closed porosity in a two step process, which provides a high-transmittance arc tube. An initially porous arc tube is formed by extruding or die pressing individual components of the tube from a mixture which includes powdered alumina, assembling the components into an arc tube body, and then partially sintering the components to seal them together. The two step process includes hot isostatic pressing of the partially sintered arc tube and then chemically polishing the surface of the tube. The first, pressing step involves heating the alumina arc tube in an inert atmosphere, such as argon, at a temperature of 1600 to 1900null C. and a pressure of about 700 to 2100 kg/sq.cm. for from about one to three hours. This reduces porosity in the crystalline structure. In the second step, the surface of the tube is immersed in a flux comprising a molten alkali metal borate at moderately elevated temperatures, or coated with a flux material which is heated to form the flux, to remove surface imperfections. The finished arc tube has transmittance values which approach those of single crystal sapphire arc tubes.

Abstract translation: 用于金属卤化物放电灯的高透光率多晶氧化铝电弧管是通过在两步法中处理具有几百个闭孔率的氧化铝弧管材料形成的，这提供了高透光率的电弧管。 通过从包括粉末状氧化铝的混合物挤出或模压管道的各个部件形成最初多孔的电弧管，将组件组装成电弧管体，然后部分烧结组件以将它们密封在一起。 两步法包括热等静压部分烧结的电弧管，然后化学抛光管的表面。 第一个压制步骤包括在惰性气氛（例如氩气）中在1600至1900℃的温度和约700至2100kg / sq.cm的压力下加热氧化铝弧光管。 约一到三个小时。 这降低了晶体结构中的孔隙率。 在第二步骤中，将管的表面在适度升高的温度下浸入包含熔融碱金属硼酸盐的焊剂中，或涂覆有加热以形成焊剂的焊剂材料，以去除表面缺陷。 完成的电弧管具有接近单晶蓝宝石电弧管的透射率值。