Illumination – Supported by vehicle structure – Light modifier
Patent
1999-01-27
2000-11-07
Sember, Thomas M.
Illumination
Supported by vehicle structure
Light modifier
362297, 362217, 362346, 362518, B60Q 100
Patent
active
06142658&
ABSTRACT:
A motor vehicle headlight comprises a light source having a given geometry, a mirror and a lens. The mirror co-operates with the source to generate a beam delimited by a cut-off at least part of which is horizontal. The source has the general shape of a cylinder having a horizontal axis perpendicular to an optical axis and a length less than the width of the mirror. At least one vertical section of the mirror has a profile such that a ray emitted tangentially by an edge of the source is reflected parallel to the optical axis and rays emitted by the rest of the source are reflected downwards relative to the optical axis. The mirror has at the height of the source a horizontal section adapted to assure a predetermined horizontal distribution of light.
REFERENCES:
patent: 4697225 (1987-09-01), Lindae et al.
patent: 4731713 (1988-03-01), Perthus
patent: 4794493 (1988-12-01), Luciani
patent: 4827367 (1989-05-01), Luciani
patent: 4964021 (1990-10-01), Masin
"Macrofocal Conics as Reflector contours", Spenser et al, Journal of the Optical Society of America, vol. 55, No. 1, Jan. 1965.
French Search Report dated Aug. 4, 1998.
Sember Thomas M.
Valeo Vision
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