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公开(公告)号：DE69608089D1
公开(公告)日：2000-06-08
申请号：DE69608089
申请日：1996-12-18
Applicant: OSRAM SYLVANIA INC
Inventor： KEEFFE WILLIAM M , KOENIGSBERG WILLIAM , SPEER RICHARD , STRUCK CHARLES
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公开(公告)号：CA2194724A1
公开(公告)日：1997-07-12
申请号：CA2194724
申请日：1997-01-09
Applicant: OSRAM SYLVANIA INC
Inventor： KEEFFE WILLIAM M , SPEER RICHARD , KOENIGSBERG WILLIAM , STRUCK CHARLES
Abstract: A highly efficient discharge lamp has a color rendering index greater than 75, alumens per watt rating greater than 90, a correlated color temperature of between 3500 and 4040.degree.K, and a wall loading greater than 17 W/cm2. The lamp comprises an outer glass envelope and a pair of electrical conductors extending thereinto. A quartzdischarge tube is disposed within the outer envelope and includes a pair of spaced electrodes which are electrically connected to the electrical conductors for creating an electrical discharge during operation of the lamp. The discharge tube has an arcchamber or arc cavity with the configuration of a prolate spheroid having a major meter and a given arc distance as measured by the linear distance between the interior terminations of the electrodes, the ratio of the major diameter to the arc distance being less than 1 and greater than 0.9. An arc generating and sustaining medium within the arc chamber comprises the halides of sodium, scandium, lithium, thulium, in a ratio of 48:1:10:16, and a thallium amalgam. A fill gas selected from argon and xenon, and a given quantity of mercury to achieve a desired lamp voltage completes the chemical dose.
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公开(公告)号：DE69608089T2
公开(公告)日：2000-09-14
申请号：DE69608089
申请日：1996-12-18
Applicant: OSRAM SYLVANIA INC
Inventor： KEEFFE WILLIAM M , KOENIGSBERG WILLIAM , SPEER RICHARD , STRUCK CHARLES
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