Image combiner and image display device

Details Image combiner and image display device Image combiner and image display device

2005-06-20

2011-10-11

Shafer, Ricky (Department: 2872)

Optical: systems and elements

Holographic system or element

Head up display

C359S015000, C359S485010, C359S630000, C359S633000, C345S007000

Reexamination Certificate

active

08035872

ABSTRACT:
The present invention aims to provide an image combiner and an image display device which can easily have a wide field of view and reduce a thickness of a substrate while reducing loss of light intensity by means of a PBS. An image combiner includes a substrate transparent to visible light; and a polarization beam splitter installed in the substrate to reflect a light flux introduced into the substrate from an image-display element and to make the light flux incident on an exit pupil outside the substrate. An exit angle θ0at which a principal ray of the light flux emitted from a center of a display surface of the image-display element is emitted from a surface of the substrate toward a center of the exit pupil satisfies a condition of 3°≦θ0.

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