Illumination apparatus and projection type display apparatus

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United States of America Patent

PATENT NO 10073330
APP PUB NO 20170307969A1
SERIAL NO

15495201

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Abstract

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An illumination apparatus includes an illumination optical system, a first light source unit that includes a first solid-state light source, a second light source unit that includes a second solid-state light source with a characteristic different from that of the first wavelength conversion element, an optical path combining system that includes a first light guide surface, and a second light guide surface. The first light guide surface viewed from an optical axis direction of the illumination optical system does not overlap the second light guide surface and is provided at a position different from that of the second light guide surface. The optical path combining system includes a first condenser optical system, and a second condenser optical system. A predetermined condition is satisfied.

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Patent Owner(s)

  • CANON KABUSHIKI KAISHA

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Inoko, Kazuhiro Utsunomiya, JP 42 294
Kawasumi, Takehito Saitama, JP 21 60

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