Illumination optical system and projector including fluorophore

摘要

A projector includes an illumination optical system, an image formation element that spatially modulates light from the illumination optical system, and a projection lens that projects the spatially modulated light. The illumination optical system includes a light source that emits light of a first wavelength, a fluorophore unit including a reflection region reflecting the light of the first wavelength and a fluorophore region including a fluorophore emitting fluorescent light of a wavelength that differs from the first wavelength by irradiation of the light of the first wavelength, an optical element reflecting the light of the first wavelength, and a quarter-wave plate provided on a light path between the optical element and the fluorophore unit.

主权项

1. A projector, comprising:
an illumination optical system; an image formation element that spatially modulates light from the illumination optical system; and a projection lens that projects the spatially modulated light, wherein the illumination optical system comprises:
a light source that emits light of a first wavelength;a fluorophore unit including a reflection region reflecting the light of said first wavelength and a fluorophore region including a fluorophore emitting fluorescent light of a wavelength that differs from said first wavelength by irradiation of the light of said first wavelength;an optical element reflecting the light of said first wavelength; anda quarter-wave plate provided on a light path between said optical element and said fluorophore unit.