Rearlighting – basic optical principles
The light pattern of a LED-chip, distributed in an angle of 180°, needs to be captured, focused, reoriented and distributed towards other traffic partners.
As optical elements we may use simple or numerically calculated reflexion surfaces, Fresnel optics, prismatic lenses, different kinds of light guides such as tubes, bars or curtains. For the final distribution of the beam pattern we apply surfaces of frozen appearance or over-molded film layers.
These optical concepts generate together with the outer shape the dedicated lamp appearance.