52.
    发明专利
    未知

    公开(公告)号:DE112006001267T5

    公开(公告)日:2008-04-17

    申请号:DE112006001267

    申请日:2006-05-03

    Inventor: TAN CHINH

    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 pixels are rendered symmetrical in cross-section by aligning a narrow dimension of a beam spot of a laser beam along scan lines of the raster pattern.

    Large size image projection
    53.
    发明专利

    公开(公告)号:AU2005301244A1

    公开(公告)日:2006-05-11

    申请号:AU2005301244

    申请日:2005-09-28

    Abstract: A plurality of image projection modules is operative for causing selected pixels in overlapping raster patterns to be illuminated to produce a large size image of high resolution of VGA quality in monochrome or color. The selected pixels in an overlap region of the patterns are illuminated at a lesser intensity to provide uniform brightness over the image. Multiple single mode lasers, or a multimode laser with an aperture stop, are employed to increase laser output power. Speckle noise is reduced by controlling the optical transmission characteristic of a projection screen. Three-dimensional images are generated by moving the screen. Cross-coupling between drive and feedback mechanisms in image projection is reduced for better image quality.

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