Patent ID: 8714747

Claim:
A projector comprising: a light source; a first light separation optical system adapted to separate light emitted from the light source into a first light and a second light; a second light separation optical system adapted to separate the first light into a third light of a first color and a fourth light of a second color, separate the second light into a fifth light of a third color and a sixth light of a fourth color, and emit the third light, the fourth light, the fifth light, and the six light in directions intersecting with a plane including a light axis of the light emitted from the light source and a light axis of the first light; and a light modulation element which the third light, the fourth light, the fifth light, and the sixth light enter, wherein the first light separation optical system includes a first reflecting element adapted to reflect the first light and transmit the second light, and a second reflecting element adapted to reflect the second light, and the second light separation optical system includes a third reflecting element adapted to reflect the third light and the fifth light and transmit the fourth light and the sixth light, and a fourth reflecting element adapted to reflect the fourth light and the sixth light.