H - Electricity – 01 – J
Patent
H - Electricity
01
J
313/81
H01J 61/44 (2006.01) C03C 3/089 (2006.01) C03C 3/091 (2006.01) C03C 17/23 (2006.01) H01J 61/35 (2006.01) H01J 61/38 (2006.01) A61N 5/06 (2006.01)
Patent
CA 1155900
PHN 9507 12 7.3.80 ABSTRACT: Low-pressure mercury vapour discharge lamp. Low-pressure mercury vapour discharge lamp for radiation purposes having a discharge tube made of glass with selective transmission, the tube being coated on the inside with a luminescent layer. This layer contains a luminescent material which has the characteristic line emission of gadolinium at 312 nm. The discharge tube is made of glass having an absorp- tion edge located between 260 and 280 nm and the tube has at 312 nm a transmission of at least 80%.
355319
Konijnendijk Willem L.
Peters Robert C.
Willemsen Petrus J. M.
N.v. Philips Gloeilampenfabrieken
Van Steinburg C.e.
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