Illumination device and projector

A illumination device, comprising:

• a first light source to emit a first light beam having a first intensity distribution in a first direction;
• a second light source to emit a second light beam having a second intensity distribution in a second direction different from the first direction;
• a light combiner to combine the first light beam and the second light beam;
• and
• a light homogenizer separated from the light combiner, the light homogenizer to generate and emit a third light beam by homogenizing the first intensity distribution of the first light beam and the second intensity distribution of the second light beam, wherein
• the first light beam is reflected by the light combiner and is incident on the light homogenizer in the second direction,
• the second light beam is incident on the light homogenizer in the second direction without passing through the light combiner,
• the light homogenizer has an entrance having a rectangular cross-sectional shape having vertical sides and horizontal sides,
• the first light beam forms a first condensed light spot at the entrance of the light homogenizer,
• the second light beam forms a second condensed light spot at the entrance of the light homogenizer,
• the first condensed light spot has a first profile having a substantially rectangular shape having first vertical sides and first horizontal sides, the first vertical sides and the first horizontal sides of which are respectively inclined with the vertical sides and horizontal sides of the entrance of the light homogenizer, and
• the second condensed light spot has a second profile having a substantially rectangular shape having second vertical sides and second horizontal sides, the second vertical sides and the second horizontal sides of which are respectively inclined with the vertical sides and horizontal sides of the entrance of the light homogenizer.

An illumination device, comprising:

• a first light source to emit a first light beam having a first intensity distribution in a first direction;
• a second light source to emit a second light beam having a second intensity distribution in a second direction different from the first direction;
• a light combiner to combine the first light beam emitted from the first light source and the second light beam emitted from the second light source;
• and
• a light homogenizer separated from the light combiner, the light homogenizer to generate and emit a third light beam by homogenizing the first intensity distribution of the first light beam and the second intensity distribution of the second light beam, wherein
• the light homogenizer includes an entrance having a rectangular cross-sectional shape having vertical sides and horizontal sides,
• the first light beam forms a first condensed light spot at the entrance of the light homogenizer,
• the second light beam forms a second condensed light spot at the entrance of the light homogenizer,
• the first condensed light spot has a first profile having a substantially rectangular shape having first vertical sides and first horizontal sides, the first vertical sides and the first horizontal sides of which are respectively inclined with the vertical sides and horizontal sides of the entrance of the light homogenizer, and
• the second condensed light spot has a second profile having a substantially rectangular shape having second vertical sides and second horizontal sides, the second vertical sides and the second horizontal sides of which are respectively inclined with the vertical sides and horizontal sides of the entrance of the light homogenizer.