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    Projection system with multi-phased scanning trajectory
    31.
    发明授权
    Projection system with multi-phased scanning trajectory 有权
    投影系统具有多相扫描轨​​迹

    公开(公告)号：US08446342B2

    公开(公告)日：2013-05-21

    申请号：US12032988

    申请日：2008-02-18

    Applicant: Mark Champion ,  Margaret K. Brown ,  Mark O. Freeman

    Inventor： Mark Champion ,  Margaret K. Brown ,  Mark O. Freeman

    IPC: G09G1/08

    CPC classification number: G09G3/025 ,  G09G5/18

    Abstract: A scanned beam display device scans a beam to paint an image. The beam is scanned in two dimensions and includes at least one sinusoidal component. Phase offsets are introduced to provide different scan trajectories for successive traversals of the image field of view.

    Abstract translation: 扫描光束显示装置扫描光束以绘制图像。 束被扫描成二维并且包括至少一个正弦分量。 引入相位偏移以为图像视场的连续遍历提供不同的扫描轨迹。

    Laser Scanning Imaging System with Reduced Speckle
    34.
    发明申请
    Laser Scanning Imaging System with Reduced Speckle 有权
    具有减少斑点的激光扫描成像系统

    公开(公告)号：US20120013855A1

    公开(公告)日：2012-01-19

    申请号：US12835028

    申请日：2010-07-13

    Applicant: Alban N. Lescure ,  Markus Duelli ,  Mark O. Freeman

    Inventor： Alban N. Lescure ,  Markus Duelli ,  Mark O. Freeman

    IPC: G02B27/48 ,  G02B26/10 ,  G03B21/28

    CPC classification number: G02B27/48 ,  G02B26/101 ,  G03B21/2033 ,  H04N9/3129 ,  H04N9/3167

    Abstract: An imaging system (200) is configured to reduce perceived speckle (106) in images (201) by introducing angular diversity into consecutively projected images. The imaging system (200) includes one or more laser sources (203) that are configured to produce one or more light beams (215). A light modulator (204) scans these light beams (215) to produce images. A light translation element (206) introduces the angular diversity by physically altering a light reception location (208) on the light modulator (204) between refresh sweeps. To preserve image stability, image data (220) in a memory (218) can be correspondingly shifted.

    Abstract translation: 成像系统（200）被配置为通过将角度分集引入连续投影的图像来减少图像（201）中的感知散斑（106）。 成像系统（200）包括被配置为产生一个或多个光束（215）的一个或多个激光源（203）。 光调制器（204）扫描这些光束（215）以产生图像。 光转换元件（206）通过在刷新扫描之间物理地改变光调制器（204）上的光接收位置（208）来引入角度分集。 为了保持图像稳定性，存储器（218）中的图像数据（220）可以相应地移位。

    Integrated photonics module and devices using integrated photonics modules
    37.
    发明授权
    Integrated photonics module and devices using integrated photonics modules 有权
    集成光子模块和使用集成光子模块的器件

    公开(公告)号：US07834867B2

    公开(公告)日：2010-11-16

    申请号：US11786423

    申请日：2007-04-10

    Applicant: Randall B. Sprague ,  Joshua O. Miller ,  Margaret K. Brown ,  Mark O. Freeman ,  Maarten Niesten ,  Bin Xue ,  Christopher A. Wiklof

    Inventor： Randall B. Sprague ,  Joshua O. Miller ,  Margaret K. Brown ,  Mark O. Freeman ,  Maarten Niesten ,  Bin Xue ,  Christopher A. Wiklof

    IPC: G06F3/038

    CPC classification number: G09G3/025 ,  G02B27/104 ,  G02B27/1066 ,  G02B27/141 ,  G02B27/145 ,  G02B27/283 ,  G09G3/346 ,  H04N9/3111 ,  H04N9/3129

    Abstract: An integrated photonics module includes at least one light source and a MEMS scanner coupled to and held in alignment by an optical frame configured for mounting to a host system. According to some embodiments, the integrated photonics module may include a plurality of light sources and a beam combiner coupled to the optical frame. According to some embodiments, the integrated photonics module includes a selective fold mirror configured to direct at least a portion of emitted light toward the MEMS scanner in a normal direction and pass scanned light through to a field of view. The selective fold mirror may use beam polarization to select beam passing and reflection. The integrated photonics module may include a beam rotator such as a quarter-wave plate to convert the polarization of the emitted light to a different polarization adapted for passage through the fold mirror. The integrated photonics module may include one or more light detectors.

    Abstract translation: 集成光子模块包括至少一个光源和MEMS扫描仪，该扫描器被配置成安装到主机系统的光学框架耦合并保持对准。 根据一些实施例，集成光子模块可以包括耦合到光学框架的多个光源和光束组合器。 根据一些实施例，集成光子模块包括选择性折叠镜，其被配置为沿正常方向将至少一部分发射光引向MEMS扫描器，并将扫描光通过到视场。 选择性折叠镜可以使用光束偏振来选择光束通过和反射。 集成光子模块可以包括诸如四分之一波片的波束旋转器，以将发射的光的偏振转换成适于通过折叠镜的不同偏振。 集成光子模块可以包括一个或多个光检测器。

    BURIED NUMERICAL APERTURE EXPANDER HAVING TRANSPARENT PROPERTIES
    39.
    发明申请
    BURIED NUMERICAL APERTURE EXPANDER HAVING TRANSPARENT PROPERTIES 有权
    具有透明性能的BURIED数值孔径膨胀机

    公开(公告)号：US20090067057A1

    公开(公告)日：2009-03-12

    申请号：US11852628

    申请日：2007-09-10

    Applicant: Randall B. Sprague ,  Mark O. Freeman ,  Christian Dean DeJong ,  Jacques P. Lincoln ,  Karlton D. Powell

    Inventor： Randall B. Sprague ,  Mark O. Freeman ,  Christian Dean DeJong ,  Jacques P. Lincoln ,  Karlton D. Powell

    IPC: G02B27/01

    CPC classification number: G02B27/0101 ,  G02B2027/0123

    Abstract: Briefly, in accordance with one or more embodiments, a buried numerical aperture expander may be utilized to provide a head-up or virtual display at a larger field of view without requiring a larger amount of space, larger sized display, or larger sized optics. The buried numerical aperture expander is capable of selectively reflecting light emanating from a display such that the reflected light is expanded into a larger field of view, while simultaneously allowing other light to be transmitted through the buried numerical aperture expander without expansion so that the buried numerical aperture expander may be deployed in conjunction with a windshield or window without adversely affecting the ability to see through buried numerical aperture expander.

    Abstract translation: 简而言之，根据一个或多个实施例，可以利用埋藏的数值孔径扩展器来在更大的视野下提供平视或虚拟显示器，而不需要更大量的空间，更大尺寸的显示器或更大尺寸的光学器件。 掩埋式数值孔径扩展器能够选择性地反射从显示器发出的光，使得反射光扩展成更大的视野，同时允许其他光透过埋入的数值孔径扩展器而不膨胀，使得掩埋的数值 孔径扩张器可以与挡风玻璃或窗户一起部署，而不会不利地影响通过掩埋的数值孔径扩展器观察的能力。

    Diffractive stack pickup head for optical disk drives and method to fabricate the pickup head
    40.
    发明授权
    Diffractive stack pickup head for optical disk drives and method to fabricate the pickup head 有权

    公开(公告)号：US06577582B2

    公开(公告)日：2003-06-10

    申请号：US10021638

    申请日：2001-10-29

    Applicant: Mark O. Freeman

    Inventor： Mark O. Freeman

    IPC: G11B700

    CPC classification number: G11B7/131 ,  G11B7/123 ,  G11B7/1353 ,  G11B7/1365 ,  G11B7/1372 ,  G11B7/22 ,  H01S5/005 ,  H01S5/02248 ,  H01S5/02292 ,  H01S5/02296 ,  H01S5/4025

    Abstract: The invention provides a pickup head used in an optical data storage system. The pickup head contains a diffractive optical element (DOE) stack on a semiconductor substrate. The DOE stack includes multiple diffractive lenses for providing several diffractive surfaces and a middle layer serving as a beamsplitter and servo-generating element for a light reflected from an optical storage medium. The middle layer is sandwiched by the diffractive lenses that are located on both outer parts of the DOE stack. The semiconductor substrate includes at least a laser source and several photodetectors. The middle layer serving its function preferably includes a polarization-selective DOE and a quarter-wave retarder oriented to rotate a polarization state of the laser source, so that only the light reflected from the optical storage medium is diffracted by the polarization-selective DOE.

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