DUAL-MODULATION LASER PROJECTION SYSTEMS AND METHODS

Abstract: a dual-modulation laser projection system includes (a) a polarizing beamsplitter for splitting laser light into first and second polarized beams having mutually orthogonal polarizations, (b) a phase spatial light modulator (slm) for beam steering the second polarized beam, (c) a mechanical amplitude slm for amplitude modulating a combination of the first polarized beam and the second polarized beam as beam steered by the phase slm, and (d) a filter for removing, from the amplitude modulated combination of the first and second polarized beams, one or more of a plurality of diffraction orders introduced by the mechanical amplitude slm, to generate filtered, modulated output light.

Inventor(s): Juan P. PERTIERRA, Martin J. RICHARDS, Dzhakhangir V. Khaydarov

CPC Classification: H04N9/3167 (Projection devices for colour picture display {, e.g. using electronic spatial light modulators [ESLM]})

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