Arrangement for and method of improving image quality,...

Details Arrangement for and method of improving image quality,... Arrangement for and method of improving image quality,...

2007-04-25

2008-10-07

Cherry, Euncha P (Department: 2872)

Optical: systems and elements

Deflection using a moving element

Using a periodically moving element

Reexamination Certificate

active

07433108

ABSTRACT:
A lightweight, compact image projection module, especially for mounting in a housing having a light-transmissive window, is operative for causing selected pixels in a raster pattern to be illuminated to produce an image of high resolution of VGA quality in color. The brightness of the illuminated pixels is enhanced by combining constituent laser beams of the same wavelength. The contrast of the illuminated pixels is improved by sweeping a composite beam across a polarized screen, and by making the polarizations of all the constituent laser beams of the composite beam the same.

REFERENCES:
patent: 3429641 (1969-02-01), Fowler

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