| 摘要 |
A lamp for automotive vehicle front lighting is described. The lamp (10) comprises a base (12) for mechanical and electrical connection to an automotive headlight (50) and a burner (14) fixed to the base (12). The burner (14) comprises an enclosed transparent vessel (22). A first and a second filament (34, 36) are arranged within the vessel (22). A baffle (40) is arranged proximate to the first filament (34) to shield the second filament (36) from the first filament (34). When the first filament (34) is supply voltage of 13.2 V at an electrical power greater operated at a supply voltage of 13.2 V at an electrical power greater than 35 W and less than or equal to 38 W, light with a luminous flux of 500-700 lm is emitted from the lamp 10. If the second filament (36) is operated at a supply voltage of 13.2 V at an electrical power greater than 35 W and less than or equal to 38 W, light with a luminous flux of 800-1000 lm is emitted from the lamp (10). Both the first and the second filament wire (34, 36) are comprised of a filament wire wound in a winding structure around a filament axis, where the number of winding turns for each of said first and second filaments (34, 36) is (16-23). |
| 主权项 |
1. Lamp for automotive vehicle front lighting, comprising
a base for mechanical and electrical connection to an automotive headlight, a burner fixed to said base, said burner comprising a sealed transparent vessel, at least a first and a second filament arranged within said vessel, a baffle arranged proximate to said first filament to shield said second filament from said first filament, where when said first filament is supplied with a supply voltage of 13.2 V it is operated at an electrical power greater than 35 W and less than or equal to 38 W, and light with a luminous flux of 500-700 lm is emitted, and where when said second filament is supplied with a supply voltage of 13.2 V it is operated at an electrical power greater than 35 W and less than or equal to 38 W, and light with a luminous flux of 800-1,000 lm is emitted, wherein each of said first and second filaments are comprised of a filament wire wound around a filament axis, where the number of winding turns for each of said first and second filaments is 16-23, wherein said base comprises a reference protrusion defining a symmetry plane (X, R), where said filaments and said baffle are arranged symmetrical to said symmetry plane (X, R). |
