Illumination device, image display device, and projector

Details Illumination device, image display device, and projector Illumination device, image display device, and projector

2009-07-28

2010-12-21

Wong, Tina M (Department: 2874)

Optical waveguides

With optical coupler

Input/output coupler

C359S015000

Reexamination Certificate

active

07856160

ABSTRACT:
An image display device includes: a first face; a laser light source device emitting laser light; and a diffractive optical element on which the laser light emitted from the laser light source device is incident, generating diffracted light from the incident laser light, and illuminating the first face with the diffracted light, the first face is provided at a position on which zero-order light emitted from the diffractive optical element is not incident, and an image is displayed by light via the first face.

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