中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

53 records (took 0.023 seconds)

    Image scanning device having a system for determining the distance to a target
    23.
    发明专利
    Image scanning device having a system for determining the distance to a target 未知

    公开(公告)号：AU2003297989B2

    公开(公告)日：2008-07-24

    申请号：AU2003297989

    申请日：2003-12-17

    Applicant: SYMBOL TECHNOLOGIES INC

    Inventor： BREYTMAN ALEX ,  CARLSON BRADLEY S ,  KRICHEVER MARK ,  SHI TSI DAVID ,  YAVID DMITRIY

    IPC: G06K7/10 ,  G06K7/00 ,  G06K19/14 ,  G06V30/224

    Abstract: An image scanning device is provided which includes a system for determining the distance to a target to be scanned. The image scanning device includes an optical system and an image sensor array for focusing a light beam and imaging the target. The device preferably includes an automatic focusing system for adjusting the position of the optical system in order to adjust the focal point, and thereby focus the image of the target onto the image sensor array. In one embodiment of the image scanning device, the distance is determined by analyzing a collimated aiming pattern formed by collimating the light beam. In another embodiment, the distance is determined by analyzing a speckle pattern caused by the speckle effect upon the light beam hitting the target.

    24.
    发明专利
    未知

    公开(公告)号：DE112006000417T5

    公开(公告)日：2008-01-31

    申请号：DE112006000417

    申请日：2006-01-25

    Applicant: SYMBOL TECHNOLOGIES INC

    Inventor： YAVID DMITRIY

    IPC: G03B29/00

    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 monochrome, color or gray scale. Edge-emitting light emitting diodes are employed, together with mutually orthogonal cylindrical lenses, to render the module with a short, slim form factor.

    Large size image projection
    25.
    发明专利
    Large size image projection 未知

    公开(公告)号：AU2005301244A1

    公开(公告)日：2006-05-11

    申请号：AU2005301244

    申请日：2005-09-28

    Applicant: SYMBOL TECHNOLOGIES INC

    Inventor： DVORKIS PAUL ,  YAVID DMITRIY ,  GOLDMAN RON ,  TAN CHINH ,  WOOD FREDERICK F

    IPC: G03B21/00

    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.

    LARGE SIZE IMAGE PROJECTION
    29.
    发明申请
    LARGE SIZE IMAGE PROJECTION 审中-公开
    大尺寸图像投影

    公开(公告)号：WO2006049771A3

    公开(公告)日：2006-11-23

    申请号：PCT/US2005035162

    申请日：2005-09-28

    Applicant: SYMBOL TECHNOLOGIES INC

    Inventor： DVORKIS PAUL ,  GOLDMAN RON ,  TAN CHINH ,  YAVID DMITRIY ,  WOOD FREDERICK F

    IPC: G03B21/00

    CPC classification number: H04N9/3129 ,  G03B21/208 ,  G03B35/18 ,  G03B37/04

    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.

    Abstract translation: 多个图像投影模块可操作用于使重叠光栅图案中的选定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像素以较低的强度被照亮以在图像上提供均匀的亮度。 采用多个单模激光器或具有孔径光阑的多模激光器来增加激光器输出功率。 通过控制投影屏幕的光学传输特性来减少散斑噪声。 通过移动屏幕来生成三维图像。 图像投影中驱动器和反馈机制之间的交叉耦合减少以提高图像质量。

    IMAGE PROJECTION SCREEN WITH REDUCED SPECKLE NOISE
    30.
    发明申请
    IMAGE PROJECTION SCREEN WITH REDUCED SPECKLE NOISE 审中-公开
    图像投影屏幕与减少的频谱噪声

    公开(公告)号：WO2006124359A3

    公开(公告)日：2007-02-01

    申请号：PCT/US2006017680

    申请日：2006-05-03

    Applicant: SYMBOL TECHNOLOGIES INC

    Inventor： YAVID DMITRIY

    IPC: G02B27/10

    CPC classification number: G02B27/48 ,  G03B21/10 ,  H04N9/3129

    Abstract: An image projection module within a housing is operative for causing selected pixels in a raster pattern to be illuminated to produce an image on a display screen of VGA quality. The screen is provided with an array of lenslets to reduce speckle noise in the image.

    Abstract translation: 壳体内的图像投影模块可操作用于使得光栅图案中的所选像素被照亮以在VGA质量的显示屏上产生图像。 屏幕上设有一个小透镜阵列，以减少图像中的斑点噪音。

Patent Agency Ranking