Illuminating apparatus, image display apparatus, and projector

Details Illuminating apparatus, image display apparatus, and projector Illuminating apparatus, image display apparatus, and projector

2008-04-22

2008-04-22

Dowling, William C. (Department: 2851)

Optics: image projectors

Polarizer or interference filter

C353S094000, C349S008000

Reexamination Certificate

active

11047602

ABSTRACT:
An illuminating apparatus includes at least two solid light-emitting elements including a first solid light-emitting element and a second solid light-emitting element; a polarized-light combining unit that combines a first polarized light of a first oscillation direction and a second polarized light of a second oscillation direction substantially perpendicular to the second oscillating direction to guide the first polarized light and the second polarized light to an illumination direction by transmitting or reflecting the first polarized light and reflecting or transmitting the second polarized light; and a phase modulating element that converts a polarized light from the polarized-light combining unit into either of the first polarized light and the second polarized light.

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Stupp et al; “Projection Displays”; 1999; John Wiley & Sons; West Sussex, England 301240; XP002397739 7.5.4 Polarizing Beam splitters in the imaging path; 10.3.1.1 Microfilter projector.

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