Patent ID: 9058970
Filing Date: 2015-06-16
Classification: F21S,H01J,H01K

Abstract:
1. An automotive gas-discharge lamp comprising a vessel, which vessel is partially coated with a stripe (S V , S V ′) arranged circumferentially on a surface of the vessel, and wherein a first long side of the stripe (S V , S V ′) is situated close to a base of the lamp, characterized in that the width of the stripe (S V , S V ′) is such that a first angle (α V2 ) subtended at the lamp centre between a radius (r) and a point on the first long side ( 14 ) of the stripe (S V , S V ′) comprises at most 55°, and a second angle (α V1 ) subtended at the lamp centre between the radius (r) and a point on a second long side of the stripe (S V , S V ′) comprises an angle not greater than 50°.