Electric lamp unit, particularly sealed-beam vehicle...

Details Electric lamp unit, particularly sealed-beam vehicle... Electric lamp unit, particularly sealed-beam vehicle...

H - Electricity

01

K

240/17, 313/88

H01K 7/02 (2006.01) H01K 9/08 (2006.01)

Patent

CA 1134426

ABSTRACT OF THE DISCLOSURE An electric light source preferably a sealed-beam vehicle headlight unit for use in vehicle headlights capable of emitting a dipped beam. The device includes a parabolic ref- lector arranged about a halogen incandescent lamp, with at least one incandescent body of the lamp arranged inside the reflection space of the parabolic reflector adjacent the focal point of the parabolic reflector. The reflector space is sealed off by a glass plate. A light screen is mounted around the incandescent body emitting the dipped beam. The light screen is effective to prevent the incidence of light on the parabolic reflector within a zone subtending at most 180° with successive planes perpendi- cular to the axis of the paraboloid. The rim of the shield is in the shape of a three-dimensional curve such that at most two points of the three-dimensional curve are located in any plane containing the axis of the paraboloid radially and extending radially from that axis.

345942

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