公开(公告)号：US20160266398A1

公开(公告)日：2016-09-15

申请号：US14658017

申请日：2015-03-13

申请人： Yarn Chee Poon ,  Steve Robbins ,  Angus Wu ,  Jeb Wu ,  James Webster ,  Richard Andrew Wall ,  Richard James ,  Robin Hsiung ,  RuPing Huang ,  Freeway Lin

发明人： Yarn Chee Poon ,  Steve Robbins ,  Angus Wu ,  Jeb Wu ,  James Webster ,  Richard Andrew Wall ,  Richard James ,  Robin Hsiung ,  RuPing Huang ,  Freeway Lin

IPC分类号： G02B27/28 ,  G02B27/01 ,  G02B5/30 ,  G02B27/22

CPC分类号： G02B27/283 ,  G02B5/3016 ,  G02B5/3083 ,  G02B27/0172 ,  G02B27/0961 ,  G02B27/225 ,  G02B27/286 ,  G02B2027/0178

摘要： An optical light engine includes a pair of lenticular microlenslet arrays (MLAs) located on each side of a polarization converter. Non-polarized light from a source in the engine is focused by the first MLA onto cells of the polarization converter which converts the light to a common state of polarization to increase efficiency and improve contrast in the system. A half wave retarder is included on the polarization converter to change the polarization of any light that is reflected from downstream optical components to match that of the forward propagating light. The second MLA, which includes a relatively large number of microlenslet elements, collects the light from the polarization converter and homogenizes the light to be highly uniform when received at a downstream imaging panel in the light engine such as a liquid crystal on silicon (LCOS) panel.

摘要翻译： 光学引擎包括位于偏振转换器的每一侧上的一对透镜微透镜阵列（MLAs）。 来自发动机源的非偏振光由第一MLA聚焦到偏振转换器的单元上，其将光转换成公共的偏振状态，以提高效率并改善系统中的对比度。 在偏振转换器中包括半波延迟器，以改变从下游光学部件反射的任何光的偏振，以与正向传播光的偏振相匹配。 包括相对大量的微透镜元件的第二MLA收集来自偏振转换器的光，并且当光接收到诸如硅上液晶（LCOS）的光引擎中的下游成像面板时，将光均匀化为高度均匀， 面板。

公开(公告)号：US20170176747A1

公开(公告)日：2017-06-22

申请号：US14977603

申请日：2015-12-21

申请人： Tuomas Heikki Sakari Vallius ,  Richard Andrew Wall ,  Pasi Petteri Pietilä ,  Yarn Chee Poon ,  Ian Anh Nguyen ,  Jeb Wu

发明人： Tuomas Heikki Sakari Vallius ,  Richard Andrew Wall ,  Pasi Petteri Pietilä ,  Yarn Chee Poon ,  Ian Anh Nguyen ,  Jeb Wu

IPC分类号： G02B27/01 ,  G02B6/35 ,  G02B27/10

CPC分类号： G02B27/0172 ,  G02B6/3598 ,  G02B27/0081 ,  G02B27/1066 ,  G02B27/283 ,  G02B2027/0123 ,  G02B2027/0134 ,  G02B2027/0174 ,  G02B2027/0178

摘要： Disclosed are an apparatus and method for increasing the FOV of displayed images in a head-mounted display (HMD) device. A display apparatus comprises a display module and a waveguide optically coupled to the display module. The display module may generate individually multiple different portions of an image, to be conveyed to an optical receptor of a user of the HMD device, and may include multiple optical output ports, each to output a different portion of the image. The waveguide may include multiple optical input ports, each optically coupled to a different one of the optical output ports of the display module, where the waveguide is configured to output, to the optical receptor of the user, light corresponding to the image in its entirety.

公开(公告)号：US20180052326A1

公开(公告)日：2018-02-22

申请号：US15243434

申请日：2016-08-22

申请人： Richard Andrew Wall ,  Bernard Charles Kress

发明人： Richard Andrew Wall ,  Bernard Charles Kress

IPC分类号： G02B27/01 ,  G06T19/00

CPC分类号： G02B27/0172 ,  G02B23/08 ,  G02B2027/0123 ,  G02B2027/014 ,  G02B2027/0174 ,  G06T19/006 ,  H04N13/344

摘要： An augmented reality display system utilized in computing platforms such as wearable head-mounted display (HMD) devices includes a virtual reality display that is located in front of a user's eyes to provide a direct view of virtual world images. An optical periscope, comprising reflective or diffractive optical systems, is configured to provide an indirect view of the real world. By locating the virtual reality display (and its associated optical and electrical components) close to the user's eyes and within the user's direct line of sight, the field of view (FOV) of the virtual world is increased as compared with conventional indirect-view virtual reality displays. The optical periscope provides an FOV of the real world that would otherwise be obstructed by the positioning of the direct-view virtual reality display in front of the user's eyes.

公开(公告)号：US20170242249A1

公开(公告)日：2017-08-24

申请号：US15048917

申请日：2016-02-19

申请人： Richard Andrew Wall ,  Tuomas Heikki Sakari Vallius

发明人： Richard Andrew Wall ,  Tuomas Heikki Sakari Vallius

IPC分类号： G02B27/01 ,  F21V8/00

摘要： A waveguide-based pupil relay for an optical system can comprise a light-transmissive substrate that includes a plurality of internally reflective surfaces to enable light rays of a plurality of different colors to propagate through the substrate by total internal reflection. The pupil relay can further include an input surface to input light rays of the plurality of different colors through an entry pupil of the optical waveguide, and an output surface to output light rays of the plurality of different colors from the substrate through an exit pupil of the optical waveguide. The pupil relay can have optical properties such that the entry pupil and exit pupil have substantially identical size and shape and such that the input light rays and output light rays have substantially identical chromatic properties.

公开(公告)号：US20170299860A1

公开(公告)日：2017-10-19

申请号：US15097646

申请日：2016-04-13

申请人： Richard Andrew Wall ,  Tuomas Vallius ,  Mikko Juhola

发明人： Richard Andrew Wall ,  Tuomas Vallius ,  Mikko Juhola

IPC分类号： G02B27/00 ,  G02B3/04 ,  G02B3/00 ,  F21V8/00 ,  G02B27/01

CPC分类号： G02B27/0081 ,  G02B3/0062 ,  G02B3/04 ,  G02B6/0026 ,  G02B6/003 ,  G02B26/101 ,  G02B27/0172 ,  G02B2027/0118 ,  G02B2027/0123 ,  G02B2027/0125 ,  G02B2027/0174

摘要： A near eye or heads up display system includes a scan beam projector engine, an optical waveguide, and an exit pupil expander (EPE) optically coupled between the scan beam projector engine and the optical waveguide. The EPE improves the optical performance of the display system. The EPE could include a diffusive optical element, diffractive optical element, micro-lens array (MLA), or relay of aspherical lenses. A dual MLA EPE may have cells that prevent cross-talk between adjacent pixels. A dual MLA EPE may have a non-periodic lens array. The optical power of one MLA may be different from the other MLA.