Development of Controlled Surface Reflector for Headlamps

Paper #:
  • 920813

Published:
  • 1992-02-01
Citation:
Nino, N. and Ishida, H., "Development of Controlled Surface Reflector for Headlamps," SAE Technical Paper 920813, 1992, https://doi.org/10.4271/920813.
Pages:
13
Abstract:
1. ABSTRACTThis report describes the development of an advanced technology headlamp reflector which is capable of producing a sharp cut-off line. Similar attempts in the past have suffered from various drawbacks, but through the use of a mathematically derived set of equations describing a controlled curved surface, we were able to greatly increase performance specifications. Prototype headlamp tests showed improved distant visibility, a major problem in existing designs. Furthermore, by superimposing a ripple pattern onto the reflector surface, we were able to attain sufficient light diffusion to enable the reflector to be used within headlamps having highly slanted outer lenses.
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