Beam combining device for a light-source device

A light-source device for a medical apparatus, comprising:

• a first light source for generating light having a first spectrum;
• a second light source for generating light having a second spectrum;
• a body made of a transparent material;
• a face which reflects in at least either a dichroic or polarization-dependent manner and is situated in or on the body, which face is transparent to light having a first spectrum or a first polarization and reflects light having a second spectrum or a second polarization;
• and
• a light-entrance face on the body, which light-entrance face is provided and arranged so that light enters the beam combining device through the light-entrance face;
• wherein the light-entrance face has the form of a section of an arcuate face of a cylinder or of a cone;
• and
• wherein an arcuate face of a section of the body away from the light-entrance face includes a reflective coating.

A medical apparatus, comprising;

• a first light source for generating light having a first spectrum;
• a second light source for generating light having a second spectrum;
• a body made of a transparent material;
• a face which reflects in at least either a dichroic or polarization-dependent manner and is situated in or on the body, which face is transparent to light having a first spectrum or a first polarization and reflects light having a second spectrum or a second polarization;
• and
• a light-entrance face on the body, which light-entrance face is provided and arranged so that light enters the beam combining device through the light-entrance face;
• wherein the light-entrance face has the form of a section of an arcuate face of a cylinder or of a cone;
• and
• wherein an arcuate face of a section of the body away from the light-entrance face includes a reflective coating.