Patent · US Expired

Signal lamp

US5584570A · kind A · utility

6Cited by
3References
9Claims
0Family size

Assignee

Inventors

Key dates

Filing dateApr 21, 1995
Grant dateDec 17, 1996
Priority date
Expiry dateApr 21, 2015

Classification

  • Technology area (CPC F)Mechanical Engineering; Lighting; Heating
  • CPC primaryF21S43/255
  • WIPO fieldElectrical machinery, apparatus, energy
  • WIPO sectorElectrical engineering

Abstract

In a signal lamp, in particular, for automotive vehicles, comprising a casing, a light source arranged in the casing, a reflector, a closure plate and an optical plate provided between the light source and the closure plate and comprising convex areas at the side thereof facing the light source and concave areas on the side thereof facing away from the light source between which are provided light-impermeable areas on the surface, a homogeneous light distribution is obtained in that the side of the closure plate facing the light source comprises concave recesses.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.