Optical device for use with scanned beam light sources
    22.
    发明授权
    Optical device for use with scanned beam light sources 有权
    用于扫描光束光源的光学装置

    公开(公告)号:US07839575B2

    公开(公告)日:2010-11-23

    申请号:US12470022

    申请日:2009-05-21

    摘要: 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.

    摘要翻译: 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。

    Substrate-guided relays for use with scanned beam light sources
    23.
    发明授权
    Substrate-guided relays for use with scanned beam light sources 有权
    基板导向继电器,用于扫描光束光源

    公开(公告)号:US07589901B2

    公开(公告)日:2009-09-15

    申请号:US11775511

    申请日:2007-07-10

    IPC分类号: G02B27/00 G02B6/26

    摘要: 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.

    摘要翻译: 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。

    Active polarization switch for speckle reduction in laser projection sources
    26.
    发明授权
    Active polarization switch for speckle reduction in laser projection sources 有权
    激光投影光源减少斑点的主动偏振开关

    公开(公告)号:US08567957B2

    公开(公告)日:2013-10-29

    申请号:US13179828

    申请日:2011-07-11

    IPC分类号: G03B21/14 G02F1/1335 H04N3/02

    摘要: 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.

    摘要翻译: 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。

    Diffractive optical element having periodically repeating phase mask and system for reducing perceived speckle
    27.
    发明授权
    Diffractive optical element having periodically repeating phase mask and system for reducing perceived speckle 有权
    具有周期性重复相位掩模的衍射光学元件和用于减少感觉到的斑点的系统

    公开(公告)号:US08152307B2

    公开(公告)日:2012-04-10

    申请号:US12643914

    申请日:2009-12-21

    摘要: 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.

    摘要翻译: 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。

    Wide field of view head-up display system
    28.
    发明授权
    Wide field of view head-up display system 有权
    宽视场平视显示系统

    公开(公告)号:US07777960B2

    公开(公告)日:2010-08-17

    申请号:US12424129

    申请日:2009-04-15

    申请人: Mark O. Freeman

    发明人: Mark O. Freeman

    IPC分类号: G02B27/10 G09G5/00

    摘要: 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.

    摘要翻译: 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)。

    EMBEDDED RELAY LENS FOR HEAD-UP DISPLAYS OR THE LIKE
    29.
    发明申请
    EMBEDDED RELAY LENS FOR HEAD-UP DISPLAYS OR THE LIKE 有权
    嵌入式继电器镜头,用于顶盖显示器或类似的

    公开(公告)号:US20100046075A1

    公开(公告)日:2010-02-25

    申请号:US12194466

    申请日:2008-08-19

    IPC分类号: G02B27/01 G02B27/10 G02B27/42

    摘要: 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.

    摘要翻译: 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。