Gas-discharge lamp for a vehicle headlamp
US-2017345638-A1 · Nov 30, 2017 · US
Gas-discharge lamp
US9711342B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9711342-B2 |
| Application number | US-201113698853-A |
| Country | US |
| Kind code | B2 |
| Filing date | May 19, 2011 |
| Priority date | May 26, 2010 |
| Publication date | Jul 18, 2017 |
| Grant date | Jul 18, 2017 |
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- Title
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Abstract
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The invention describes a gas-discharge lamp ( 1 ) comprising a vessel ( 5 ), which vessel ( 5 ) is partially coated with at least one longitudinal stripe (S H , S H ′) arranged on the surface of the vessel ( 5 ) below a horizontal plane (P) through a longitudinal axis (X) through the centre of the lamp ( 1 ) such that, on each side of the lamp, an angle (β H1 , β H2 ) subtended at the lamp centre by the horizontal plane (P) and an upper edge ( 16, 17 ) of the longitudinal stripe (S H , S H ′) on that side of the lamp comprises at least 10°, more preferably at least 13°, most preferably at least 15°. The invention also describes a reflector ( 8 ) for a lamp ( 1 ), comprising a reflective interior surface realized to deflect light (L 20A , L 20B , L 21A , L 21B ) originating from the lamp ( 1 ) outward to give a specific beam profile ( 3 ) with a bright/dark cut-off line ( 31 ) and a shoulder ( 32 ), and wherein the lamp ( 1 ), in particular a lamp ( 1 ) according to any of claims 1 to 12 , is positioned horizontally in the reflector ( 8 ), and wherein the reflective interior surface comprises at least one beam-shaping region ( 81 A, 81 B) realised to deflect a portion (L 21A , L 21B ) of the light (L 20A , L 20B , L 21A , L 21B ), emitted from the lamp ( 1 ) between 7.5° and 15° below a horizontal plane (P), at a specific region ( 21 A, 21 B) within the beam profile ( 3 ). The invention further describes a lighting assembly ( 9 ) comprising such a reflector ( 8 ) and a lamp ( 1 ), in particular a lamp ( 1 ) according to the invention.
First claim
Opening claim text (preview).
The invention claimed is: 1. A lighting assembly for a reflection-type automotive headlamp, comprising: a reflector, and a gas-discharge lamp mounted horizontally in the reflector such that a longitudinal axis (X) through a lamp center is horizontal, the lamp comprising: a vessel will a partial coaling comprising first and second longitudinal opaque stripes (S H ) arranged on a surface of the vessel, wherein, as seen in the lamp's horizontal mounting position: the first longit…
Assignees
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Classifications
Mechanical Engineering · mapped topic
Mechanical Engineering · mapped topic
- H01J61/35Primary
Electricity · mapped topic
Electricity · mapped topic
Mechanical Engineering · mapped topic
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Frequently asked questions
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- What does patent US9711342B2 cover?
- The invention describes a gas-discharge lamp ( 1 ) comprising a vessel ( 5 ), which vessel ( 5 ) is partially coated with at least one longitudinal stripe (S H , S H ′) arranged on the surface of the vessel ( 5 ) below a horizontal plane (P) through a longitudinal axis (X) through the centre of the lamp ( 1 ) such that, on each side of the lamp, an angle (β H1 , β H2 ) subtended at the lamp cen…
- Who is the assignee on this patent?
- Kuepper Lukas, Haacke Michael, Schoeller Klaus, and 1 more
- What technology area does this patent fall under?
- Primary CPC classification H01J61/35. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Jul 18 2017 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).