Vehicular signal and daytime running light assemblies with uniform illumination
AssigneeFord Global Technologies, LLC
InventorsGary Edward Henige, Chad Clement, Udayakumar Ramasami
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Abstract
A vehicular signal assembly that includes an inner chamber defined by a substrate comprising LED light sources and spaced apart, corresponding Fresnel lenses; and an outer chamber defined by the Fresnel lenses and an outer lens comprising optical elements. The outer lens can have a width of at least 12 mm. Further, each LED source emanates incident light directly through the chambers to produce a light pattern with a contrast ratio of 3:1 or less, e.g., a daytime running light pattern. Each LED source can also emanate incident light directly through the corresponding Fresnel lens an outer lens to produce the daytime running light pattern.
Claims14
A vehicular signal assembly, comprising:
- an inner chamber defined by a substrate and spaced apart, corresponding Fresnel lenses;
- and
- an outer chamber defined by the lenses and an outer lens comprising optical elements,
- the chambers non-linearly shaped with at least one right angle having a sharp corner, and
- the substrate comprises at least four LED sources, each emanating light through the corresponding Fresnel lens and optical elements into a light pattern with a contrast ratio of 3:1 or less.
A vehicular signal assembly, comprising:
- an inner chamber defined by a substrate and spaced apart, corresponding Fresnel lenses;
- and
- an outer chamber defined by the lenses and an outer lens comprising optical elements,
- the chambers non-linearly shaped with at least one right angle having a sharp corner, and
- the substrate comprises at least four LED sources emanating light through the chambers into a daytime running light pattern with a contrast ratio of 3:1 or less.
A vehicular signal assembly, comprising:
- an inner chamber defined by at least 40 LED light sources and spaced apart, corresponding Fresnel lenses;
- and
- an outer chamber defined by the Fresnel lenses and an outer lens having a width of at least 30 mm,
- wherein each LED source emanates incident light directly through the corresponding Fresnel lens and outer lens to produce a daytime running light pattern with a contrast ratio of 3:1 or less,
- wherein the inner and outer chambers are arranged in a C-shape that contains at least one right angle having a sharp corner.
Dependencies are inferred from the claim text.