A brief history of the sunvisor is laid in chronological order as well as the design of passenger cars with relation to shape and aerodynamic characteristics. A description of the slope of the windshield and the subsequent flattening of the roof line is also described and illustrated.
The changing role of the visor is given in detail and describes today's visor and it's function and features. As the vehicle shape changes, so too, the visor and it's mission, of necessity, must accommodate this natural evolution. The role of the visor is shifting from that of sun blocker and feature support, to that of safety component. Described herein are the materials and processes that will be the future visor. Also, the end of the sunvisor as we know it is mentioned and how that will be accomplished. The main thrust of tomorrow's visor is impact management and safety for the occupants.