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    Method and apparatus for controllably reducing power delivered by a laser projection display
    1.
    发明授权
    Method and apparatus for controllably reducing power delivered by a laser projection display 有权
    用于可控地减少由激光投射显示器传递的功率的方法和装置

    公开(公告)号：US07030353B2

    公开(公告)日：2006-04-18

    申请号：US10836813

    申请日：2004-04-30

    申请人： Miklos Stern ,  Paul Dvorkis ,  Narayan Nambudiri ,  Carl Wittenberg ,  Chinh Tan ,  Ron Goldman ,  Dmitriy Yavid ,  Frederick F. Wood

    发明人： Miklos Stern ,  Paul Dvorkis ,  Narayan Nambudiri ,  Carl Wittenberg ,  Chinh Tan ,  Ron Goldman ,  Dmitriy Yavid ,  Frederick F. Wood

    IPC分类号： G01J1/32

    CPC分类号： H04N9/3129

    摘要： A method and apparatus are provided to controllably reduce power of a laser projection display (LPD) in response to detecting a variation in a viewing surface. During the operation of the LPD, a controller 142 monitors laser light being reflected from the viewing surface. Since the controller 142 “knows” the amount of power that the LPD is being instructed to deliver, it may compare the known power to the reflected laser light to determine if a foreign object may be in the path of the laser light, and therefore, affecting the magnitude of the laser light. The controller 142 responds to detecting such an event by reducing power to the lasers.

    摘要翻译： 提供了一种方法和装置，用于响应于检测到观察表面的变化而可控地降低激光投影显示器（LPD）的功率。 在LPD的操作期间，控制器142监视从观察表面反射的激光。 由于控制器142“知道”LPD正在被指示传送的功率量，所以它可以将已知功率与反射的激光进行比较，以确定异物是否在激光的路径中，因此， 影响激光的大小。 控制器142通过减少对激光器的功率来响应来检测这种事件。

    Laser projection display
    5.
    发明授权
    Laser projection display 有权
    激光投影显示

    公开(公告)号：US07369584B2

    公开(公告)日：2008-05-06

    申请号：US10883479

    申请日：2004-06-30

    申请人： Ron Goldman ,  Paul Dvorkis ,  Joseph Katz ,  Narayan Nambudiri ,  Miklos Stern ,  Chinh Tan ,  Carl Wittenberg ,  Frederick F. Wood ,  Dmitriy Yavid

    发明人： Ron Goldman ,  Paul Dvorkis ,  Joseph Katz ,  Narayan Nambudiri ,  Miklos Stern ,  Chinh Tan ,  Carl Wittenberg ,  Frederick F. Wood ,  Dmitriy Yavid

    IPC分类号： H01S3/10

    CPC分类号： H04N9/3129

    摘要： A method and apparatus are provided for controlling the operation of a Laser Projection Display (LPD). Generally, the LPD is comprised of a laser, an optical system and a controller. The laser is adapted to emit a beam of laser light. The optical system is adapted to scan the beam of laser light on a display surface in a two-dimensional raster pattern. The controller is adapted to control the rate at which the laser beam is scanned to produce regions of varying resolution on the display surface. The controller is also adapted to present laser light onto the display surface within only selected portions of the two-dimensional raster scan pattern so that spaced apart image regions may be created.

    摘要翻译： 提供了一种用于控制激光投影显示器（LPD）的操作的方法和装置。 通常，LPD由激光器，光学系统和控制器组成。 激光器适于发射激光束。 光学系统适于以二维光栅图案扫描显示表面上的激光束。 控制器适于控制激光束被扫描的速率，以在显示表面上产生不同分辨率的区域。 该控制器还适于在仅在二维光栅扫描图案的选定部分内的显示表面上呈现激光，使得可以产生间隔开的图像区域。