Image projection arrangement with divergent light beams

Details Image projection arrangement with divergent light beams Image projection arrangement with divergent light beams

2010-12-27

2011-11-22

Lee, John (Department: 2878)

Optics: image projectors

Composite projected image

Multicolor picture

C353S037000, C353S069000, C359S204200, C359S204400

Reexamination Certificate

active

08061847

ABSTRACT:
A lightweight, compact image projection module has a laser package having a common exit port, and a plurality of lasers mounted in the package and operative for emitting a plurality of laser beams of different wavelengths through the common exit port. An optical assembly focuses the laser beams exiting the common exit port, and includes a common focusing lens through which the laser beams pass along respective paths that are in angular misalignment. An optical corrector element in at least one of the paths corrects the misalignment to produce aligned beams. A scanner sweeps the aligned beams in a pattern of scan lines, each scan line having a number of pixels. A controller causes selected pixels to be illuminated, and rendered visible, by the aligned beams to produce the image.

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