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US 4,383,290 AGranted
Signal lamp
AssigneeITT Industries, Inc.
InventorsHelmut Binder, Gerhard Haar, Eckhardt Schmid, Hans-Joachim Wirth
Life of this patent
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Abstract
A signal lamp is disclosed for use in automotive vehicles. The lamp includes a housing, a reflector for producing parallel rays, a lens closing the housing in the direction of light exit and diaphragms mounted behind the lens. The outside of the lens is provided with non-reflecting or weakly reflecting transverse stripes to avoid undesired reflections. In one advantageous embodiment, the diaphragms are positioned only in an upper portion of the lamp.
Claims27
A signal lamp comprising:
- a housing;
- a reflector for producing a substantially parallel bundle of light rays;
- a lens closing the housing in the direction of exit of said light rays;
- a plurality of substantially parallel vertically spaced apart diaphragms mounted behind said lens;
- a plurality of substantially parallel vertically spaced-apart horizontal transverse stripes on the outside of said lens, each of said stripes being relatively non-reflective and each of said stripes being arcuate along its length when viewed from the front of said lens such that each stripe approximates a circular segment having a radius greater than the radius of said lens;
- each of said diaphragms comprising a cylindrical segment having a radius greater than the radius of said lens such that each diaphragm is arcuate in shape when viewed from the front of said lens and each of said diaphragms being in registered alignment with a corresponding one of said plurality of stripes.
3 more elements
A signal lamp comprising:
- a housing;
- a lamp in said housing;
- a reflector positioned relative to said lamp for producing a substantially parallel bundle of light rays;
- a lens closing the housing in the direction of exit of said light rays, said lens comprising a plurality of convex optical surfaces, each of said plurality of convex optical surfaces acting as an objective lens;
- and
- a plurality of substantially parallel, vertically spaced apart diaphragms mounted between said lens and said reflector, each of said plurality of diaphragms being positioned at the transition between a corresponding pair of said plurality of convex optical surfaces.
3 more elements
A signal lamp comprising:
- a lamp;
- a reflector for producing a substantially parallel bundle of light rays fromsaid lamp;
- a lens spaced apart from said reflector said lens having a plurality of sawtoothed shaped corrugations, each of said corrugations having a substantially horizontal position and an inclined portion, the inclined portion of each of said corrugations having a predetermined angle of inclination from vertical;
- a plurality of diaphragms each extending from a corresponding one of said corrugations each of said diaphragms having a portion extending to the intersection of the interior surfaces of the the inclined and horizontal portions of said corresponding one corrugation, each of said corrugations having a substantially non-reflecting stripe on one of said horizontal or inclined portions.
1 more element
Dependencies are inferred from the claim text.