A lens body includes: an incident surface where light entering within a predetermined angular range with respect to an optical axis of the light source is refracted in a condensing direction; a first reflection surface that internally reflects the light; and a second reflection surface that internally reflects part of the reflected light from the first reflection surface. The lens body includes an emission surface of a convex lens surface. The second reflection surface extends backward from near a focal point of the emission surface. Light obtained by blocking part of the light internally reflected by the first reflection surface with a front edge of the second reflection surface, and the light internally reflected by the second reflection surface are emitted from the emission surface to from a predetermined light distribution pattern including a cutoff line defined by the second reflection surface at the upper edge.
Lens body and vehicle lighting fixture
2018-09-11
Patent
Electronic Resource
English
IPC: | F21V FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF , Funktionsmerkmale oder Einzelheiten von Leuchten oder Beleuchtungssystemen / B60Q ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL , Anordnung von Signal- oder Beleuchtungsvorrichtungen, deren Einbau oder Halterung oder deren Schaltkreise bei Fahrzeugen allgemein / F21S Ortsfeste Leuchten , NON-PORTABLE LIGHTING DEVICES / F21Y Index-Schema in Verbindung mit den Unterklassen F21K, F21L, F21S und F21V, betreffend die Form oder die Art der Lichtquellen oder die Farbe des emittierten Lichts , INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED |
VEHICLE LIGHTING FIXTURE AND VEHICLE LIGHTING FIXTURE SYSTEM
European Patent Office | 2017
|European Patent Office | 2021
|