Geometrically Shaped Ellipsoid Vehicular Mirror

Abstract

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.

1 . A mirror assembly comprising:
 a base member; and   a dome lens member attached to said base member;   said dome lens member comprising a major axis tip portion of an ellipsoid;   said ellipsoid having an elliptical toroid-shaped configuration with an elliptical cross section.   
     
     
         2 . A mirror assembly as described in  claim 1  wherein said major axis tip portion comprises a dome depth less than one tenth of a major axis length of said ellipsoid. 
     
     
         3 . A mirror assembly as described in  claim 1  wherein said ellipsoid includes a minor axis length less than half of a major axis length. 
     
     
         4 . A mirror assembly comprising:
 a base member; and   a dome lens member attached to said base member;   said dome lens member comprising a major axis tip portion of an ellipsoid;   said ellipsoid having an elliptical toroid-shaped configuration with a circular cross-section.   
     
     
         5 . A mirror assembly as described in  claim 4  wherein said major axis tip portion comprises a dome depth less than one tenth of a major axis length of said ellipsoid. 
     
     
         6 . A mirror assembly as described in  claim 4  wherein said ellipsoid includes a minor axis length less than half of a major axis length. 
     
     
         7 . A mirror assembly comprising:
 a base member; and   a dome lens member attached to said base member;   said dome lens member comprising a major axis tip portion of an ellipsoid;   said ellipsoid having a circular torus-shaped configuration with an oval-shaped cross-section.   
     
     
         8 . A mirror assembly as described in  claim 7  wherein said major axis tip portion comprises a dome depth less than one tenth of a major axis length of said ellipsoid. 
     
     
         9 . A mirror assembly as described in  claim 7  wherein said ellipsoid includes a minor axis length less than half of a major axis length.