US 12,435,855 B2
Optical device for a light signal lamp comprising a transparent block of material with an ogive shaped light output portion
Vivien Schott, Pont-Eveque (FR)
Assigned to VIGNAL SYSTEMS, Corbas (FR)
Filed by VIGNAL SYSTEMS, Corbas (FR)
Filed on Jul. 11, 2024, as Appl. No. 18/770,354.
Claims priority of application No. 23/07745 (FR), filed on Jul. 19, 2023.
Prior Publication US 2025/0027630 A1, Jan. 23, 2025
Int. Cl. F21S 43/236 (2018.01); F21S 43/20 (2018.01); F21S 43/243 (2018.01)
CPC F21S 43/236 (2018.01) [F21S 43/243 (2018.01); F21S 43/26231 (2024.05); F21S 43/265 (2024.05)] 19 Claims
OG exemplary drawing
 
1. An optical device intended to be placed in a housing to form a light signal lamp for a vehicle, the optical device being in the form of a block of transparent or translucent material having a longitudinal direction and comprising, along the longitudinal direction:
an input portion configured to receive rays emitted by at least one light source;
a middle portion having two lateral faces spaced from each other along a transverse direction orthogonal to the longitudinal direction;
an output portion including an output face through which the rays which have propagated in the optical device are emitted;
an elevation direction being defined as orthogonal to the longitudinal and transverse directions;
wherein the output portion comprises a plurality of modules, at least one module of the plurality of modules having lateral faces which, when viewed in the elevation direction, have an ogive shape and which define a front ridge extending substantially in a plane parallel to the longitudinal and elevation directions and the plurality of modules are arranged on top of each other in the elevation direction, the front ridge of each module of the plurality of modules defining a mean line, in which at least two modules of the plurality of modules have front ridges whose mean lines have different inclinations relative to the elevation direction.