Poly Ellipsoidal Reflector Overview

The Poly Ellipsoidal Reflector is a reflector that is mainly used in automotive projector modules to produce spread driving beams.

Poly Ellipsoidal reflectors are designed to collect light rays from a focal point and redirect them to a secondary one with defocus.

In Speos, reflectors are created in several angular sections around the optical axis.

For each of these profiles (or angular sections), control planes are defined to control the variation of the defocus from the image point.

The defocus drives the overall beam spread. A poly ellipsoid reflector without defocus produces perfectly collimated rays with no spread, that is, the beam pattern of a spotlight.

LED reflector - no hole, source emitting only in upper half space	Light Bulb reflector - hole for the source, source with diffuse emission in upper and lower half space