Geometrically Shaped Ellipsoid Vehicular Mirror

摘要

Cross-view mirrors for buses and other vehicles which provide modified image sizes. The mirror assemblies have lens members created from the shape of a portion of an elliptical or circular toroid volumetric shape with an elliptical or circular cross-sectional shape. A first embodiment has an elliptical toroid volumetric shape with an elliptical cross-sectional shape. A second embodiment has an elliptical toroid volumetric shape with a circular cross-sectional shape. A third embodiment has a circular toroid volumetric shape with an elliptical cross-sectional shape.

主权项

1. A vehicle mirror assembly comprising:
a base comprising: a first base portion defined by a first base longitudinal line and a first base periphery, said first base portion having a first base radius of curvature; a second base portion defined by said first base longitudinal line and a second base periphery, said second base portion having a second base radius of curvature; a dome lens conforming to said base, said dome lens having a varying dome lens radius of curvature, said dome lens comprising; a center surface portion having a center surface radius of curvature, said center surface radius corresponding to a position on said dome lens aligned with a first base longitudinal midpoint to said dome lens, said center surface radius perpendicular to said first base longitudinal line; and a peripheral surface portion having a peripheral surface radius of curvature, said peripheral surface radius of curvature corresponding to said first base periphery, said peripheral surface radius of curvature greater than said center surface radius of curvature.