Prism structure and projector

Details Prism structure and projector Prism structure and projector

2007-04-03

2007-04-03

Perkey, W. B. (Department: 2851)

Optics: image projectors

Composite projected image

Multicolor picture

C353S081000, C349S058000

Reexamination Certificate

active

10511754

ABSTRACT:
A prism structure that comprises of a combination of a plurality of modulators and a color-combining prism is provided, wherein light shielding means having an opening in the center are arranged between the modulators and the color-combing prism. The light shielding means allows image light to pass through the opening and blocks light from the periphery of the image light. The light shielding means allows linear stray light and spot-like stray light from the periphery of the image light to be effectively removed thereby improving image quality.

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