LIGHT SOURCE APPARATUS AND PROJECTOR
First Claim
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1. A light source apparatus comprising:
- a first light source unit that emits first light;
a second light source unit that emits second light; and
a light combiner that combines the first light emitted from the first light source unit and the second light emitted from the second light source unit and outputs the combined light,wherein the light combiner has a polarization separation film that transmits light polarized in a first direction and reflects light polarized in a second direction perpendicular to the first direction,the first light is polarized in the first direction,the second light is polarized in the second direction, andan angle of incidence θ
1 of the first light with respect to the polarization separation film and an angle of incidence θ
2 of the second light with respect to the polarization separation film are each greater than 45°
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Abstract
A light combiner having a polarization separation film and transmitting P-polarized light from a first light source unit whereas reflecting S-polarized light from a second light source unit forms combined light, and the angle of incidence of the light from the first light source unit and the angle of incidence of the light from the second light source unit with respect to the polarization separation film are each greater than 45°.
29 Citations
20 Claims
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1. A light source apparatus comprising:
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a first light source unit that emits first light; a second light source unit that emits second light; and a light combiner that combines the first light emitted from the first light source unit and the second light emitted from the second light source unit and outputs the combined light, wherein the light combiner has a polarization separation film that transmits light polarized in a first direction and reflects light polarized in a second direction perpendicular to the first direction, the first light is polarized in the first direction, the second light is polarized in the second direction, and an angle of incidence θ
1 of the first light with respect to the polarization separation film and an angle of incidence θ
2 of the second light with respect to the polarization separation film are each greater than 45°
. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification