LED REAR LAMP, IN PARTICULAR FOR A BICYCLE

摘要

The present invention relates to a LED rear lamp comprising a light guide (1) arranged in or forming part of a housing (10), said light guide (1) having a plate-like shape with a central aperture (2) surrounded by an inner side face (9) of the light guide. One or several LEDs (3) are arranged in the central aperture (2) such that a main emission direction of each LED (3) is aligned towards the inner side face (9) to couple emitted light through the inner side face (9) into the light guide (1). The light guide (1) is designed to guide a first portion (5) of the emitted light to escape through at least two opposing outer side faces (4) of the light guide (1) and to internally reflect or scatter a second portion (6) of the emitted light traveling towards the two outer side faces (4) to escape through a main surface (7) of the light guide (1). With the proposed LED rear lamp a good rear and side visibility is achieved in an efficient manner.

主权项

1. A LED rear lamp, comprising
a housing; one or several LEDs for emitting light; a light guide arranged in, at or forming part of the housing; the light guide having a plate-like shape being designed to guide a first portion of the emitted light to escape through at least two opposing outer side faces of the light guide and to reflect or scatter internally, while traveling towards the two outer side faces, a second portion of the emitted light, such that the second portion of the emitted light escapes through a main surface, the main surface extending between the two outer side faces; said light guide having a central aperture surrounded by an inner side face of the light guide; one or several of the LEDs being arranged in said central aperture such that a main emission direction of such LED is aligned towards the inner side face, to couple emitted light through the inner side face into the light guide, and being aligned towards the two outer side faces, to guide the first portion of the emitted light directly towards the outer side faces; said light guide being arranged in, at or forming part of said housing such that the light escapes out of the housing through said at least two opposing outer side faces and said main surface.