F - Mech Eng,Light,Heat,Weapons – 21 – V
Patent
F - Mech Eng,Light,Heat,Weapons
21
V
240/178
F21V 21/00 (2006.01) F21V 23/02 (2006.01) F21V 29/00 (2006.01)
Patent
CA 1222736
ABSTRACT OF THE DISCLOSURE A high power lighting device comprises a low voltage lamp which is driven from a mains supply via a toroidal transformer. The toroidal transformer is housed radially outside of the reflector of the low voltage lamp in an annular chamber defined by a portion of a housing and by a partition wall. The partition wall is spaced from the low voltage lamp and from the toroidal transformer so as to form two coaxial airflow channels. Heat radiated from the low voltage lamp is picked up by the partition wall and air entering through suitably disposed openings at the front side of the lighting device flows through the two air channels and over both sides of the partition wall, and leaves the housing through openings adjacent the threaded base. The threaded base and the shape of the lighting device make it possible for the lighting device to be screwed into normal threaded lamp sockets used for pressed glass type lamps.
441930
Elektrotechnik-Apparatebau Peter Schmitz
G. Ronald Bell & Associates
LandOfFree
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