Light collecting, integrating and redirecting device

摘要

To enable a particular high throughput in a light collecting, integrating and redirection arrangement it is proposed to have a light integrating device (10) and at least one reflecting element (20). Said light integrative device (10) has a light input surface (10i) with a light incidence aperture (I) and reflective areas (11) outside said light incidence aperture (I). Further, said light integrating device (10) is provided with a side face (10s) and is adapted for reflecting light travelling between said light input surface (10i) and a light output surface (10o). The reflective element (20) is adapted for reflecting at least a part of redirected primary illumination light (RL1) back to the light integrating device (10), where it is recovered when forward reflected at said reflective areas. <IMAGE>