公开(公告)号：US20090015929A1

公开(公告)日：2009-01-15

申请号：US11775511

申请日：2007-07-10

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 ,  G02B27/14 ,  G02B5/08

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：US5381253A

公开(公告)日：1995-01-10

申请号：US792284

申请日：1991-11-14

Applicant: Gary D. Sharp ,  Kristina M. Johnson ,  Mark O. Freeman

Inventor： Gary D. Sharp ,  Kristina M. Johnson ,  Mark O. Freeman

IPC: G02F1/13 ,  G02F1/1335 ,  G02F1/13363 ,  G02F1/1337 ,  G02F1/1343 ,  G02F1/1347 ,  G02F1/135 ,  G02F1/137 ,  G02F1/139 ,  G02F1/141 ,  G02F1/21 ,  G02F1/133

CPC classification number: G02F1/1418 ,  G02F1/13471 ,  G02F1/135 ,  G02F1/141 ,  G02F1/216 ,  G02F1/134309 ,  G02F1/134363 ,  G02F1/13439 ,  G02F2001/133638 ,  G02F2001/133738 ,  G02F2001/133742 ,  G02F2203/05 ,  G02F2203/055 ,  G02F2203/06 ,  G02F2203/50

Abstract: The present invention provides optical modulators which comprise aligned chiral smectic liquid crystal cells within an optical resonance cavity. The cavity configurations include symmetric and asymmetric Fabry-Perot etalons. The liquid crystal cells can be planar- or homeotropically-aligned and can be discrete state or analog cells. The device configurations of the present invention provide discrete or continuous optical modulation of the phase, intensity, and wavelength of elliptically polarized light, without requiring polarization analyzers. The modulators are optically or electronically addressable in single pixels or arrays of multiple pixels. Certain homeotropically-aligned cells are provided as an aspect of this invention, as are certain variable retarders comprised of planar-aligned cells in combination with birefringent elements.

Abstract translation: 本发明提供光学调制器，其在光学谐振腔内包括对准的手性近晶液晶单元。 腔配置包括对称和不对称法布里 - 珀罗标准具。 液晶单元可以是平面的或垂直取向的，并且可以是离散的状态或模拟单元。 本发明的器件配置提供了不需要偏振分析器的椭圆偏振光的相位，强度和波长的离散或连续光学调制。 调制器可以在单个像素或多个像素阵列中光学或电子寻址。 作为本发明的一个方面提供了一些垂直取向的单元，以及由双折射元件组合的平面排列单元组成的某些可变延迟器。

公开(公告)号：US08395714B2

公开(公告)日：2013-03-12

申请号：US12554095

申请日：2009-09-04

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

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

IPC: G02F1/1335 ,  G02F1/1333 ,  G02F1/13

CPC classification number: H04N9/3129 ,  G02B5/3083 ,  G02B27/48 ,  G02F1/1334 ,  G02F2001/291 ,  G03B21/2033 ,  G03B33/06

Abstract: An imaging system (200), such as a scanned laser projection system, includes one or more laser sources (201) configured to produce one or more light beams (204), and a light modulator (203) configured to produce images (206) from the light beams (204). Optional optical alignment devices (220) can be used to orient the light beams (204) into a combined light beam (205). A beam separator (221), which can be any of a birefringent wedge, compensated birefringent wedge, or a polymerized liquid crystal layer, is disposed between at least one of the laser sources (201) and the light modulator (203). The beam separator (221) is configured to receive light from the laser sources (201) and deliver two angularly separated and orthogonally polarized light beams (223) to the light modulator (203) so as to reduce speckle appearing when the images (206) are displayed on a display surface (207).

Abstract translation: 诸如扫描激光投影系统的成像系统（200）包括被配置为产生一个或多个光束（204）的一个或多个激光源（201）和被配置为产生图像（206）的光调制器（203） 从光束（204）。 可选的光学对准装置（220）可用于将光束（204）定向成组合的光束（205）。 可以在至少一个激光源（201）和光调制器（203）之间设置可以是双折射楔形物，补偿双折射楔形物或聚合液晶层中的任何一种的分束器（221）。 光束分离器（221）被配置为从激光源（201）接收光，并将两个角度分离和正交偏振光束（223）传递到光调制器（203），以便减少当图像（206） 被显示在显示表面（207）上。

公开(公告)号：US20130016321A1

公开(公告)日：2013-01-17

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: G02B27/48 ,  G02F1/01 ,  G02B26/10 ,  G03B21/14

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：US08355013B2

公开(公告)日：2013-01-15

申请号：US13158278

申请日：2011-06-10

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 may include a selective fold mirror configured to pass at least a portion of emitted light toward the MEMS scanner and reflect 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: 集成光子模块可以包括选择性折叠镜，其被配置为将至少一部分发射的光朝向MEMS扫描仪传递，并将扫描光反射到视场。 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。

公开(公告)号：US08111336B2

公开(公告)日：2012-02-07

申请号：US12505415

申请日：2009-07-17

Applicant: Mark O. Freeman ,  Karlton D. Powell

Inventor： Mark O. Freeman ,  Karlton D. Powell

IPC: H04N3/23

CPC classification number: H04N9/3185 ,  H04N9/3129 ,  H04N9/3182 ,  H04N9/3194

Abstract: Briefly, in accordance with one or more embodiments, scanned beam projector may comprise a light source, a scan drive and a scanning platform to project an image onto a projection surface. The scan drive circuit is capable of at least partially correcting distortion in the projected image by varying an amplitude of the scan drive signal to at least partially compensate for the distortion in the projected image.

Abstract translation: 简而言之，根据一个或多个实施例，扫描光束投影仪可以包括光源，扫描驱动器和将图像投影到投影表面上的扫描平台。 扫描驱动电路能够通过改变扫描驱动信号的幅度来至少部分地补偿投影图像中的失真，来至少部分地校正投影图像中的失真。

公开(公告)号：US07986315B2

公开(公告)日：2011-07-26

申请号：US12896270

申请日：2010-10-01

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.

公开(公告)号：US20110149251A1

公开(公告)日：2011-06-23

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 ,  G02B27/48

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：US07959308B2

公开(公告)日：2011-06-14

申请号：US12754037

申请日：2010-04-05

Applicant: Mark O. Freeman ,  Karlton D. Powell

Inventor： Mark O. Freeman ,  Karlton D. Powell

IPC: G03B21/00 ,  G02B6/00 ,  G02B27/14

CPC classification number: G02B27/0103 ,  G02B5/1814 ,  G02B5/30 ,  G02B6/00 ,  G02B6/0018 ,  G02B6/0028 ,  G02B6/0031 ,  G02B6/0035 ,  G02B6/0055 ,  G02B6/0056 ,  G02B6/0068 ,  G02B6/06 ,  G02B27/0081 ,  G02B27/0101 ,  G02B27/102 ,  G02B27/104 ,  G02B27/1086 ,  G02B27/145 ,  G02B27/149 ,  G02B27/28 ,  G02B27/285 ,  G02B27/4272 ,  G02B2027/0118 ,  G02B2027/012 ,  G02B2027/0125 ,  G02B2027/0174

Abstract: A guiding-substrate display may include an angle-mapped display engine to generate a modulated photonic output having angle-mapped rays responsive to an electrical signal without the use of an ocular lens. An input optical element receives the modulated photonic output of the angle-mapped display engine and cooperates with the angle-mapped display engine to launch modulated photonic output having selected polarization. An image relay slab receives the modulated photonic output from the input optical element and guides the modulated photonic output from a proximal to a distal location. An output optical element to receives the modulated photonic output from the image relay slab and launches the modulated photonic output having angle-mapped rays toward a viewing region.

Abstract translation: 引导衬底显示器可以包括角度映射显示引擎，以产生具有响应于电信号的角度映射的光线的调制光子输出，而不使用眼镜。 输入光学元件接收角度映射显示引擎的调制光子输出，并与角度映射显示引擎配合以发射具有所选偏振的调制光子输出。 图像继电器板从输入光学元件接收经调制的光子输出并将调制的光子输出从近端引导到远端位置。 输出光学元件，用于接收来自图像继电器板的调制的光子输出，并且向受观察区域发射具有角度映射的光线的经调制的光子输出。

公开(公告)号：US07956858B2

公开(公告)日：2011-06-07

申请号：US12896185

申请日：2010-10-01

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。