Space light modulating apparatus, projector including same,...

Details Space light modulating apparatus, projector including same,... Space light modulating apparatus, projector including same,...

2008-07-22

2008-07-22

Koval, Melissa Jan (Department: 2862)

Optics: image projectors

Composite projected image

Multicolor picture

C353S033000, C353S038000, C353S081000, C353S122000, C359S619000, C359S625000, C349S005000, C349S056000, C349S095000

Reexamination Certificate

active

11806953

ABSTRACT:
A space light modulating apparatus includes a modulating unit that modulates incident light based on an image signal including a plurality of pixels and a light-shielding part placed between the pixels, and a refracting unit that refracts modulated light including a group of prisms formed with a prism element that has at least a refracting surface. Light from the pixels is incident on at least a part of the prisms, and a direction of the refracting surface is such that a projection image of the pixels is guided onto a projection image of the light-shielding part on a projection surface at a predetermined distance. The refracting surface and a reference surface formed in a direction perpendicular to an optical axis make a predetermined angle.

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