Arrangement for and method of projecting an image with pixel mapping
    61.
    发明申请
    Arrangement for and method of projecting an image with pixel mapping 有权
    用像素映射投影图像的布置和方法

    公开(公告)号:US20070279722A1

    公开(公告)日:2007-12-06

    申请号:US11447583

    申请日:2006-06-06

    IPC分类号: G02B26/08

    摘要: A laser beam is swept by a scan mirror as a pattern of scan lines on a projection surface. The scan mirror moves at a variable speed along each scan line. Each scan line has a number of pixels. The pixels have time durations proportional to the variable speed of the scan mirror. A profile memory stores the time durations of the pixels. A controller causes selected pixels arranged along each scan line to be illuminated for the time durations stored by the profile memory to produce an image of uniform brightness and of uniformly sized pixels and in color.

    摘要翻译: 激光束被扫描镜扫描为投影表面上的扫描线的图案。 扫描镜沿着每条扫描线以可变速度移动。 每条扫描线都有多个像素。 像素具有与扫描镜的可变速度成比例的时间长度。 配置文件存储器存储像素的持续时间。 控制器使得沿着每个扫描线布置的所选像素在由简档存储器存储的持续时间中被照亮以产生均匀亮度和均匀大小的像素和颜色的图像。

    Monitoring light beam position in electro-optical readers and image projectors
    64.
    发明申请
    Monitoring light beam position in electro-optical readers and image projectors 有权
    监控光电读取器和图像投影仪中的光束位置

    公开(公告)号:US20070181688A1

    公开(公告)日:2007-08-09

    申请号:US11593215

    申请日:2006-11-06

    IPC分类号: G06K7/10

    CPC分类号: G06K7/10702 G06K7/10683

    摘要: An arrangement for determining light beam position in an electro-optical reader, image projector and like devices includes a drive for moving a scanning light beam at a scan frequency across a target as a scan line, and an electro-optical feedback assembly operatively connected to the drive, for optically detecting scan line position during beam movement, and for generating a feedback signal at the scan frequency, the feedback signal being indicative of the scan line position. A feedback coil in the drive is eliminated to avoid electromagnetic coupling between multiple coils in the drive.

    摘要翻译: 用于确定电光读取器,图像投影仪等装置中的光束位置的装置包括用于以扫描线跨扫描频率移动扫描光束的驱动器,以及电光反馈组件,其可操作地连接到 驱动器,用于在光束移动期间光学检测扫描线位置,并且用于在扫描频率处产生反馈信号,反馈信号指示扫描线位置。 消除驱动器中的反馈线圈,以避免驱动器中多个线圈之间的电磁耦合。

    Scan line alignment in raster pattern
    66.
    发明授权
    Scan line alignment in raster pattern 有权
    以光栅图案扫描线对齐

    公开(公告)号:US07059523B1

    公开(公告)日:2006-06-13

    申请号:US11116646

    申请日:2005-04-28

    申请人: Dmitriy Yavid

    发明人: Dmitriy Yavid

    IPC分类号: G06K7/10 G06K7/14

    CPC分类号: H04N3/08 H04N9/3129

    摘要: 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. A data signal on a pattern of odd and even scan lines in the pattern is synchronized with movement of a scan mirror operative to sweep a light beam along each scan line to align all the scan lines.

    摘要翻译: 特别是用于安装在具有透光窗口的壳体中的轻巧紧凑的图像投影模块可操作用于使光栅图案中的所选像素被照亮以产生VGA质量的高分辨率图像。 图案中的奇数和偶数扫描线的图案上的数据信号与扫描镜的运动同步,扫描镜可操作以沿着每条扫描线扫描光束以对准所有扫描线。

    Large size image projection
    67.
    发明申请
    Large size image projection 有权
    大尺寸图像投影

    公开(公告)号:US20060087628A1

    公开(公告)日:2006-04-27

    申请号:US10975889

    申请日:2004-10-27

    IPC分类号: G03B21/00

    摘要: 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.

    摘要翻译: 多个图像投影模块可操作用于使重叠的光栅图案中的所选像素被照亮以产生单色或彩色的VGA质量的高分辨率的大尺寸图像。 图案的重叠区域中的所选择的像素以较小的强度照亮以在图像上提供均匀的亮度。 采用多单模激光器或具有孔径光阑的多模激光器来增加激光输出功率。 通过控制投影屏的光传输特性来减少斑点噪声。 通过移动屏幕生成三维图像。 降低图像投影中的驱动和反馈机制之间的交叉耦合,以获得更好的图像质量。