EP0098062A1
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Vehicle lamp assemblies
Assignee: Koito Europe Ltd
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Filing: 1983-06-08
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Granted: —
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Expires: 2003-06-08
Abstract
Abstract A vehicle lamp assembly is disclosed for use when the outer cover or lens element extends round the corner of the vehicle or when the outer cover or lens element is significantly larger in one or two mutually perpendicular directions than in the other. The lamp assembly comprises a light source (16), a light transmitting cover element (12) and a light transmitting intermediate element (18) disposed between the source (16) and the cover element (12). The intermediate element (18) has coaxial cylindrical inner and outer surfaces located with the light source of their common axis, one of the cylindrical surfaces carrying elongated Fresnel prism formations of uniform cross-section extending parallel to the common axis and the other cylindrical surface carrying elongate Fresnel prism formations of constant cross-section extending in respective planes perpendicular to said common axis.
Inventors
- 👤 Nicholas William Tysoe
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-09 07:51
CPC Classifications
F; F21; F21S; F21S43/00; F21S43/20; F21S43/2605; F21S43/2621; F21S43/255; F21S43/26; F21S43/40; F21V; F21V5/00; F21V5/008; F21V5/04; F21V5/045; F21V7/00; F21V7/04; F21V7/08; F21W; F21W2107/00; F21W2107/10
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
75 words
A vehicle lamp assembly comprising a light source (16, 32) and a light transmitting cover element (12), characterised by a light transmitting intermediate element (18) disposed between the source (16, 36) and the cover element (12) and comprising coaxial cylindrical inner and outer surfaces located with the light source of their common axis, one of said cylindrical surfaces carrying elongated Fresnel prism formations of uniform cross-section extending in respective planes perpendicular to said common axis.
Claim 2
Dependent Claim
75 words
A vehicle lamp assembly comprising a light source (16, 32) and a light transmitting cover element (12), characterised by a light transmitting intermediate element (18) disposed between the source (16, 36) and the cover element (12) and comprising coaxial cylindrical inner and outer surfaces located with the light source of their common axis, one of said cylindrical surfaces carrying elongated Fresnel prism formations of uniform cross-section extending in respective planes perpendicular to said common axis.
Claim 3
Dependent Claim
37 words
A lamp assembly according to claim 1, characterised in that the prism formations on the outer surface of the intermediate element (18) are parallel to the common axis while those on the inner surface are perpendicular thereto.
Claim 4
Dependent Claim
26 words
3 . A lamp assembly according to claim 1 or 2, characterised in that the cover element (18) has pillow optics on one of its surfaces.
Claim 5
Dependent Claim
34 words
4 . A lamp assembly according to claim 1, 2 or 3, characterised in that the light source comprising a zone (32) on to which light is focused from a remote primary source (36).
Claim 6
Dependent Claim
32 words
A lamp assembly according to claim 4, characterised in that the light source (32) is one focus of an eliptical reflection (34) with the primary light source (36) at the other focus.
Claim 7
Dependent Claim
104 words
A vehicle lamp assembly comprising a light source (16, 32), a light transmitting cover element (12), and a light transmitting intermediate element (18) disposed between the source (16, 32) and the cover element (12) characterised in that the intermediate element (18) has coaxial cylindrical inner and outer surfaces located with the light source on their common axis, one of said cylindrical surfaces carrying elongated Fresnel prism formations (22) of uniform cross-section extending in respective planes extending parallel to said common axis and the other cylindrical surface carrying elongated Fresnel prism formations (20) of uniform cross-section extending in respective planes perpendicular to said common axis.
Claim 8
Dependent Claim
104 words
A vehicle lamp assembly comprising a light source (16, 32), a light transmitting cover element (12), and a light transmitting intermediate element (18) disposed between the source (16, 32) and the cover element (12) characterised in that the intermediate element (18) has coaxial cylindrical inner and outer surfaces located with the light source on their common axis, one of said cylindrical surfaces carrying elongated Fresnel prism formations (22) of uniform cross-section extending in respective planes extending parallel to said common axis and the other cylindrical surface carrying elongated Fresnel prism formations (20) of uniform cross-section extending in respective planes perpendicular to said common axis.
Claim 9
Dependent Claim
39 words
A lamp assembly according to claim 1, characterised in that the prism formations (22) on the outer surface of the intermediate element (18) are parallel to the common axis while those (20) on the inner surface are perpendicular thereto.
Claim 10
Dependent Claim
24 words
A lamp assembly according to claim 1 or 2, characterised in that the clover element (12) has pillow optics on one of its surfaces.
Claim 11
Dependent Claim
32 words
A lamp assembly according to claim 1, 2 or 3, characterised in that the light source comprising a zone (32) on to which light is focused from a remote primary source (36).
Claim 12
Dependent Claim
32 words
A lamp assembly according to claim 4, characterised in that the light source (32) is one focus of an eliptical reflection (34) with the primary light source (36) at the other focus.
References Cited (Backward Citations)
GB812148A
Cited
GB1016301A
Cited
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