Patent ID: 7866849

Claim:
A light-emitting device, comprising: a first light source adjacent to a second light source, a third light source adjacent to a fourth light source, and a light collimating element having a receiving side facing said light sources and an opposite output side, wherein said light collimating element comprises: a first V-shaped profile surface arranged in front of said first and second light sources with its edge towards said receiving side, such that the first leg of said first V-shaped profile surface is arranged in front of said first light source and comprises a dichroic filter transmissive for light from said first light source and reflective for light from said second light source, and the second leg of said first V-shaped profile surface is arranged in front of said second light source and comprises a dichroic filter transmissive for light from said second light source and reflective for light from said first light source; a second V-shaped profile surface arranged in front of said third and fourth light sources with its edge towards the receiving side, such that the first leg of said second V-shaped profile surface is arranged in front of said third light source and comprises a dichroic filter transmissive for light from said third light source and reflective for light from said fourth light source, and the second leg of said second V-shaped profile surface is arranged in front of said fourth light source and comprises a dichroic filter transmissive for light from said fourth light source and reflective for light of said third light source; a reflecting surface having an extension in the direction of light, arranged between said first and second V-shaped profile surfaces; and a third V-shaped profile surface arranged in front of said first and second V-shaped profile surfaces with its edge towards said receiving side, such that the first leg of said third V-shaped profile surface is arranged in front of said first V-shaped profile surface and comprises a dichroic filter transmissive for light from said first and second light sources and reflective for light from said third and fourth light sources, and the second leg of said third V-shaped profile surface is arranged in front of said second V-shaped profile surface and comprises a dichroic filter transmissive for light from said third and fourth light sources and reflective for light from said first and second light sources.