H - Electricity – 01 – J
Patent
H - Electricity
01
J
313/132, 313/138
H01J 61/82 (2006.01)
Patent
CA 1270893
PHN 11.747 13.3.1987 ABSTRACT: High-pressure sodium vapour discharge lamp. The high-pressure sodium vapour discharge lamp has a ceramic discharge vessel (11), which has over a length L a substantially constant inner diameter and in which electrodes (12, 13) are arranged opposite to each other at a relative distance D. The lamp emits during operation "white light" and consumes a power of at most 50W. The lamp has a high efficiency due to the fact that D/L ? 0.5.
536076
Antonis Petrus H.
Meessen Lodewijk H.m.
Schafer Ralf
Fetherstonhaugh & Co.
N.v. Philips Gloeilampenfabrieken
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