Tiled projection display using spatial light modulators

Details Tiled projection display using spatial light modulators Tiled projection display using spatial light modulators

2005-03-08

2005-03-08

Nguyen, Judy (Department: 2851)

Optics: image projectors

Polarizer or interference filter

C353S033000, C353S034000, C353S037000, C353S081000, C353S094000, C353S099000, C348S751000, C348S757000, C359S636000, C349S009000, C349S025000

Reexamination Certificate

active

06863400

ABSTRACT:
A projection apparatus (10) forms a tiled image (12) on a display surface (14), the tiled image (14) having at least two adjacent image tile segments. The projection apparatus (10) includes an illumination system (16) for providing a first illumination beam having a first polarization state and a second illumination beam having a second polarization state, these illumination beams being substantially non-overlapping. First and second spatial light modulators (20) form first and second modulated light beams from their respective illumination beams. A beam aligner (40) directs these first and second modulated light beams along adjacent parallel paths, in the direction of the optical axis of a projection lens (18). The projection lens (18) directs the first and second modulated beams to the display surface (14) to form the first and second tile segments respectively.

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