Optical: systems and elements – Signal reflector – 3-corner retroreflective
Reexamination Certificate
2007-10-09
2007-10-09
Phan, James (Department: 2872)
Optical: systems and elements
Signal reflector
3-corner retroreflective
C359S530000, C362S245000, C362S246000, C362S026000, C362S027000
Reexamination Certificate
active
11197148
ABSTRACT:
The invention comprises a lighting and/or signalling device in particular for a motor vehicle, comprising: at least one light source illuminating a light guide, part of whose surface has locally diffusing and/or reflective areas able to diffuse/reflect towards the inside part of the light propagating in the guide, at least one end face of the guide remote from the source comprising a means of reflecting light towards the inside of the guide, the reflection means comprising: at least one cube corner projecting outwards having three facets in a trirectangular trihedron, this cube corner being provided in the material of the light guide so as to cause three successive reflections of rays falling on one of the facets under total reflection conditions, in order to return them in the guide in a direction substantially parallel to the incident direction of the said rays, or at least one said cube corner and at least one corner projecting outwards and bevelled, having two facets, this corner being designed to return the incident rays in the guide.
REFERENCES:
patent: 5921652 (1999-07-01), Parker et al.
patent: 19857561 (2000-06-01), None
patent: 515921 (1996-08-01), None
French Search Report dated Apr. 20, 2005.
Morgan & Finnegan L.L.P.
Phan James
Valeo Vision
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