公开(公告)号：US08567957B2

公开(公告)日：2013-10-29

申请号：US13179828

申请日：2011-07-11

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

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

IPC: G03B21/14 ,  G02F1/1335 ,  H04N3/02

CPC classification number: G02B27/286 ,  G02B27/48 ,  G03B21/2033 ,  G03B21/208 ,  H04N9/3129 ,  H04N9/3167

Abstract: A laser-based imaging system (200) is configured to reduce perceived speckle in images (201). The imaging system (200) includes one or more laser sources (207), a light modulator (204) configured to produce the images (201) with light (205) from the laser sources (207), and one or more active polarization switches (206) disposed in an optical path of the imaging system (200). The active polarization switch (206) is configured to alternate a polarization orientation of the light in synchrony with an image refresh cycle of the system. The active polarization switch can be clocked in accordance with a clocking angle to optimize speckle reduction. Additionally, one or more light preconditioners (991,992) may be used to help optimize speckle reduction.

Abstract translation: 基于激光的成像系统（200）被配置为减少图像中感知到的斑点（201）。 成像系统（200）包括一个或多个激光源（207），配置成用来自激光源（207）的光（205）产生图像（201）的光调制器（204）和一个或多个有源极化开关 （206）设置在成像系统（200）的光路中。 主动偏振开关（206）被配置为与系统的图像刷新周期同步地交替光的偏振取向。 主动偏振开关可以按照时钟角计时，以优化散斑减少。 另外，一个或多个光预处理器（991,992）可用于帮助优化散斑减少。

公开(公告)号：US08223161B2

公开(公告)日：2012-07-17

申请号：US11843577

申请日：2007-08-22

Applicant: Margaret K. Brown ,  Mark O. Freeman ,  Mark Champion ,  Shawn M. Swilley ,  Maciej A. Jakuc

Inventor： Margaret K. Brown ,  Mark O. Freeman ,  Mark Champion ,  Shawn M. Swilley ,  Maciej A. Jakuc

IPC: G09G5/36

CPC classification number: H04N9/3164 ,  G09G3/02 ,  G09G2320/0242 ,  H04M1/0272 ,  H04N1/50 ,  H04N9/3129 ,  H04N9/3182

Abstract: An image generation apparatus provides correction for color offsets. Color offsets may be caused by misalignments in laser diodes or optics assemblies in a laser projector. The offsets may be measured during or after manufacture of the laser projector. An image buffer is responsive to the offset data to translate each color plane separately. The image buffer may include separately addressable portions for each color. Further, variable delay elements on the output of the image buffer may provide color offset correction. Interpolation provides further offset correction.

Abstract translation: 图像生成装置提供彩色偏移的校正。 颜色偏移可能是由于激光二极管或激光投影机中的光学组件中的未对准引起的。 可以在制造激光投影仪期间或之后测量偏移。 图像缓冲器响应于偏移数据以分别转换每个色平面。 图像缓冲器可以包括用于每种颜色的单独可寻址部分。 此外，图像缓冲器的输出上的可变延迟元件可以提供颜色偏移校正。 内插提供进一步的偏移校正。

公开(公告)号：US08152307B2

公开(公告)日：2012-04-10

申请号：US12643914

申请日：2009-12-21

Applicant: Markus Duelli ,  Alban N. Lescure ,  Mark O. Freeman ,  Christian Dean DeJong ,  Joshua M. Hudman

Inventor： Markus Duelli ,  Alban N. Lescure ,  Mark O. Freeman ,  Christian Dean DeJong ,  Joshua M. Hudman

IPC: G03B21/14 ,  G03H1/12 ,  H01S5/00 ,  H01S3/08 ,  H01S3/13

CPC classification number: G02B27/48 ,  G03B21/14 ,  G03B21/2053

Abstract: A optical apparatus (201) for use in an laser imaging system (200) is provided. The optical apparatus (201) includes one or more optical elements (215) that are configured to create an intermediate image plane (217) in the laser imaging system (200). A diffractive optical element (216) is then disposed at the intermediate image plane (217) to reduce speckle. The diffractive optical element (216) includes a periodically repeating phase mask (218) that can be configured in accordance with steps, vortex functions, Hermite-Gaussian functions, and so forth. Smooth grey-level phase transitional surface (337) can be placed between elements (333,334) to improve brightness and image quality. The periodically repeating phase mask (218) makes manufacture simple by reducing alignment sensitivity, and can be used to make applicable safety standards easier to meet as well.

Abstract translation: 提供一种用于激光成像系统（200）的光学装置（201）。 光学装置（201）包括被配置为在激光成像系统（200）中产生中间像平面（217）的一个或多个光学元件（215）。 然后将衍射光学元件（216）设置在中间像平面（217）处以减少斑点。 衍射光学元件（216）包括可根据步骤配置的周期性重复相位掩模（218），涡旋函数，Hermite-高斯函数等。 可以将平滑的灰度级相位过渡表面（337）放置在元件（333,334）之间，以提高亮度和图像质量。 周期性重复相位掩模（218）通过降低对准灵敏度使制造变得简单，并且可以用于使适用的安全标准更容易满足。

公开(公告)号：US20120069415A1

公开(公告)日：2012-03-22

申请号：US12887886

申请日：2010-09-22

Applicant: Mark O. Freeman ,  Joshua O. Miller

Inventor： Mark O. Freeman ,  Joshua O. Miller

IPC: G02B26/10

CPC classification number: G02B26/101 ,  G02B26/085 ,  G02B27/01 ,  G02B27/017

Abstract: A scanning projector includes a MEMS device with a scanning mirror that sweeps a beam in two dimensions. Actuating circuits receive scan angle information and provide signal stimulus to the MEMS device to control the amount of mirror deflection on two axes. The period of movement on one or both axes may be modified to effect changes in line density in a resultant display.

Abstract translation: 扫描投影仪包括具有扫描镜的MEMS装置，其在两个维度上扫描光束。 激励电路接收扫描角度信息并向MEMS器件提供信号激励以控制两个轴上的镜面偏转量。 可以修改一个或两个轴上的运动周期，以在所得到的显示中实现线密度的变化。

公开(公告)号：US08068115B2

公开(公告)日：2011-11-29

申请号：US11829484

申请日：2007-07-27

Applicant: Margaret K. Brown ,  Mark O. Freeman ,  Mark Champion ,  Aarti Raghavan ,  Shawn M. Swilley ,  Kelly D. Linden

Inventor： Margaret K. Brown ,  Mark O. Freeman ,  Mark Champion ,  Aarti Raghavan ,  Shawn M. Swilley ,  Kelly D. Linden

IPC: G09G5/36 ,  G09G5/00

CPC classification number: G09G3/001 ,  G02B26/0816 ,  G09G3/02 ,  G09G3/025 ,  G09G5/006 ,  G09G5/022 ,  G09G5/395 ,  G09G2320/028 ,  H04N3/08 ,  H04N9/3129 ,  H04N19/186 ,  H04N19/59 ,  H04N19/86

Abstract: An image generation apparatus provides interpolation and distortion correction. The interpolation and distortion correction may be provided in one or two dimensions. Nonlinear image scan trajectories, such as sinusoidal and bi-sinusoidal trajectories are accommodated. Horizontal and vertical scan positions are determined using a linear pixel clock, and displayed pixel intensities are determined using interpolation techniques.

Abstract translation: 图像生成装置提供插值和失真校正。 内插和失真校正可以以一维或二维提供。 非线性图像扫描轨迹，例如正弦和双正弦轨迹。 使用线性像素时钟确定水平和垂直扫描位置，并且使用内插技术确定显示的像素强度。

公开(公告)号：US07777960B2

公开(公告)日：2010-08-17

申请号：US12424129

申请日：2009-04-15

Applicant: Mark O. Freeman

Inventor： Mark O. Freeman

IPC: G02B27/10 ,  G09G5/00

CPC classification number: G02B27/0103 ,  G02B3/08 ,  G02B26/10 ,  G02B2027/0123 ,  G03B21/60 ,  H04N9/3129

Abstract: A projection system, such as a system suitable for head-up displays in automobiles, includes a laser projection source (101) and a scanner (102). Light from the laser projection source (101) is scanned across a projection surface (104), which can be a car's windshield. The projection surface (104) includes a buried numerical aperture expander (105) capable of reflecting some light and transmitting other light. The system may also include an image projection source (551) capable of presenting high-resolution images on a sub-region (552) of the projection surface (604) that has a optical relay (650) disposed therein.

Abstract translation: 诸如适用于汽车中的平视显示器的系统的投影系统包括激光投影源（101）和扫描仪（102）。 来自激光投射源（101）的光被扫描穿过可以是汽车的挡风玻璃的投影表面（104）。 投影表面（104）包括能够反射一些光并透射其他光的埋入式数值孔径扩展器（105）。 该系统还可以包括能够在其中设置有光学继电器（650）的投影表面（604）的子区域（552）上呈现高分辨率图像的图像投影源（551）。

公开(公告)号：US07715103B2

公开(公告)日：2010-05-11

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: G02B27/10 ,  G02B27/14

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。

公开(公告)号：US20100046075A1

公开(公告)日：2010-02-25

申请号：US12194466

申请日：2008-08-19

Applicant: Karlton D. Powell ,  Mark O. Freeman ,  David Scott Wright

Inventor： Karlton D. Powell ,  Mark O. Freeman ,  David Scott Wright

IPC: G02B27/01 ,  G02B27/10 ,  G02B27/42

CPC classification number: G02B27/1086 ,  G02B3/08 ,  G02B5/09 ,  G02B5/1861 ,  G02B5/30 ,  G02B27/0103 ,  G02B27/1066 ,  G02B27/144 ,  G02B2027/0127 ,  G02F2203/22 ,  G03B21/005

Abstract: Briefly, in accordance with one or more embodiments, an optical relay comprises a partially-reflective-coated Fresnel lens or similar low-profile lens such as a diffractive lens or a holographic lens having a first index of refraction and a filler medium having a second index of refraction and being disposed adjacent to the Fresnel lens. The optical relay enables the optical power of the Fresnel or similar low-profile lens embedded within the two layers to influence a beam that is reflected from the optical relay while allowing transmitted light to experience little or no influence from the embedded lens.

Abstract translation: 简而言之，根据一个或多个实施例，光学继电器包括部分反射涂覆的菲涅尔透镜或类似的低调透镜，例如衍射透镜或具有第一折射率的全息透镜和具有第二折射率的填充介质 折射率并邻近菲涅尔透镜设置。 光学继电器使得能够使嵌入在两层内的菲涅尔或类似的低调透镜的光功率影响从光学继电器反射的光束，同时允许透射光经受嵌入式透镜的很少或没有影响。

公开(公告)号：US20090251788A1

公开(公告)日：2009-10-08

申请号：US12470022

申请日：2009-05-21

Applicant: Christian Dean DeJong ,  Karlton D. Powell ,  Mark O. Freeman ,  Joshua O. Miller

Inventor： Christian Dean DeJong ,  Karlton D. Powell ,  Mark O. Freeman ,  Joshua O. Miller

IPC: G02B27/01 ,  G02B6/24 ,  G02B27/14

CPC classification number: G02B27/0172 ,  G02B5/30 ,  G02B6/00 ,  G02B6/0023 ,  G02B6/0055 ,  G02B27/0081 ,  G02B2027/0125

Abstract: Substrate-guided relays that employ light guiding substrates to relay images from sources to viewers in optical display systems. The substrate-guided relays are comprised of an input coupler, an intermediate substrate, and an output coupler. In some embodiments, the output coupler is formed in a separate substrate that is coupled to the intermediate substrate. The output coupler may be placed in front of or behind the intermediate substrate, and may employ two or more partially reflective surfaces to couple light from the coupler. In some embodiments, the input coupler is coupled to the intermediate substrate in a manner that the optical axis of the input coupler intersects the optical axis of the intermediate substrate at a non-perpendicular angle.

Abstract translation: 采用光导基板的基板导向继电器将光源显示系统中的图像从源传输到观看者。 衬底导向继电器由输入耦合器，中间衬底和输出耦合器组成。 在一些实施例中，输出耦合器形成在耦合到中间衬底的单独衬底中。 输出耦合器可以放置在中间衬底的前面或后面，并且可以采用两个或更多个部分反射的表面来耦合来自耦合器的光。 在一些实施例中，输入耦合器以使得输入耦合器的光轴以非垂直角与中间基板的光轴相交的方式耦合到中间基板。

公开(公告)号：US20090051828A1

公开(公告)日：2009-02-26

申请号：US11843577

申请日：2007-08-22

Applicant: Margaret K. Brown ,  Mark O. Freeman ,  Mark Champion ,  Shawn M. Swilley ,  Maciej A. Jakuc

Inventor： Margaret K. Brown ,  Mark O. Freeman ,  Mark Champion ,  Shawn M. Swilley ,  Maciej A. Jakuc

IPC: H04N3/22

CPC classification number: H04N9/3164 ,  G09G3/02 ,  G09G2320/0242 ,  H04M1/0272 ,  H04N1/50 ,  H04N9/3129 ,  H04N9/3182

Abstract: An image generation apparatus provides correction for color offsets. Color offsets may be caused by misalignments in laser diodes or optics assemblies in a laser projector. The offsets may be measured during or after manufacture of the laser projector. An image buffer is responsive to the offset data to translate each color plane separately. The image buffer may include separately addressable portions for each color. Further, variable delay elements on the output of the image buffer may provide color offset correction. Interpolation provides further offset correction.

Abstract translation: 图像生成装置提供彩色偏移的校正。 颜色偏移可能是由于激光二极管或激光投影机中的光学组件中的未对准引起的。 可以在制造激光投影仪期间或之后测量偏移。 图像缓冲器响应于偏移数据以分别转换每个色平面。 图像缓冲器可以包括用于每种颜色的单独可寻址部分。 此外，图像缓冲器的输出上的可变延迟元件可以提供颜色偏移校正。 内插提供进一步的偏移校正。