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1. 发明申请

US20160234485A1 Display System 审中-公开
标题翻译：显示系统
公开(公告)号：US20160234485A1
公开(公告)日：2016-08-11
申请号：US14617606
申请日：2015-02-09
申请人： Steven John Robbins , Tapani Levola , Pasi Saarikko , Yarn Chee Poon , Lena Adele Wolfe , Erica Lee Towle
发明人： Steven John Robbins , Tapani Levola , Pasi Saarikko , Yarn Chee Poon , Lena Adele Wolfe , Erica Lee Towle
IPC分类号： H04N13/04 , G02B27/01 , G06T19/00
CPC分类号： H04N13/332 , G02B27/0081 , G02B27/0172 , G02B2027/012 , G02B2027/0134 , G06T19/006 , G06T2207/10021 , H04N2213/008
摘要： A wearable image display system comprises a headpiece, a light engine, and an optical component. The light engine is mounted on the headpiece and configured to generate beams, each of the beams being substantially collimated so that the beams form a virtual image. The optical component located to project an image onto an eye of a wearer and comprising an incoupling structure and an exit structure. The beams are directed from an exit aperture of the light engine to the in-coupling structure of the optical component. The exit structure is arranged to guide the beams onto the eye. The optical component is located between light engine and the eye. The optical component is angled relative to the light engine such that any outwardly reflected versions of the beams propagate clear of the exit aperture.
摘要翻译：可戴式图像显示系统包括头戴式，光引擎和光学部件。光引擎安装在头盔上并被配置为产生光束，每个光束基本准直，使得光束形成虚像。所述光学部件定位成将图像投影到佩戴者的眼睛上并且包括输入结构和出口结构。光束从光引擎的出射孔引导到光学部件的耦合结构。出口结构被布置成将梁引导到眼睛上。光学部件位于光引擎和眼睛之间。光学部件相对于光引擎成角度，使得光束的任何向外反射的形式传播离开出射孔。

2. 发明申请

US20160231570A1 Display System 有权
标题翻译：显示系统
公开(公告)号：US20160231570A1
公开(公告)日：2016-08-11
申请号：US14617769
申请日：2015-02-09
申请人： Tapani Levola , Pasi Saarikko , Steven John Robbins , Yarn Chee Poon , Lena Adele Wolfe , Erica Lee Towle
发明人： Tapani Levola , Pasi Saarikko , Steven John Robbins , Yarn Chee Poon , Lena Adele Wolfe , Erica Lee Towle
IPC分类号： G02B27/01 , F21V8/00 , G06T19/00
CPC分类号： G02B27/0172 , G02B6/00 , G02B6/0016 , G02B6/0035 , G02B6/005 , G02B27/0018 , G02B27/0081 , G02B27/0176 , G02B27/4272 , G02B2027/011 , G02B2027/0123 , G02B2027/0134 , G02B2027/0152 , G02B2027/0161 , G02B2027/0178 , G06T19/006
摘要： A wearable image display system comprises a headpiece, a first and a second light engine, and a first and a second optical component. The first and second light engines generate a first and a second set of beams respectively, each beam substantially collimated so that the first and second set form a first and a second virtual image respectively. Each optical component is located to project an image onto a first and a second eye of a wearer respectively. The first and second sets of beams are directed to incoupling structures of the first and second optical components respectively. Exit structures of the first and second optical components guide the first and second sets of beams onto the first and second eyes respectively. The optical components are located between the light engines and the eyes. Both of the light engines are mounted to a central portion of the headpiece.
摘要翻译：一种可穿戴图像显示系统，包括头戴式耳机，第一和第二光引擎以及第一和第二光学部件。第一和第二光引擎分别产生第一和第二组光束，每个光束基本准直，使得第一和第二组分别形成第一和第二虚像。每个光学部件被定位成将图像投影到穿戴者的第一眼睛和第二眼睛上。第一和第二组光束分别被引导到第一和第二光学部件的耦合结构。第一和第二光学部件的出口结构分别将第一和第二组光束引导到第一和第二眼睛上。光学部件位于光引擎和眼睛之间。两个光引擎均安装在头盔的中心部分。

3. 发明申请

US20160033697A1 MICROFABRICATION 有权
标题翻译：微生物
公开(公告)号：US20160033697A1
公开(公告)日：2016-02-04
申请号：US14447464
申请日：2014-07-30
申请人： Lauri Sainiemi , Tapani Levola , Pasi Saarikko
发明人： Lauri Sainiemi , Tapani Levola , Pasi Saarikko
IPC分类号： G02B5/18 , B05C13/02 , B05C3/02
CPC分类号： G02B5/1857 , B05C3/02 , B05C13/02 , B05D1/18 , B05D5/06 , C03C15/00 , C03C17/00 , C03C2218/111 , C03C2218/33 , C23C16/45525 , C23F1/02 , G02B5/1828 , G02B6/0058 , G02B27/0103
摘要： Microfabrication processes and apparatuses for fabricating microstructures on a substrate are disclosed. The substrate has a current diffraction grating pattern formed by current surface modulations over at least a portion of the substrate's surface that exhibit a substantially uniform grating linewidth over the surface portion. An immersion depth of the substrate in a fluid for patterning the substrate is gradually changed so that different points on the surface portion are immersed for different immersion times. The fluid changes the linewidth of the surface modulations at each immersed point on the surface portion by an amount determined by the immersion time of that point, thereby changing the current diffraction grating pattern to a new diffraction grating pattern formed by new surface modulations over the surface portion that exhibit a spatially varying grating linewidth that varies over the surface portion.
摘要翻译：公开了一种用于在基板上制造微结构的微加工工艺和装置。衬底具有通过在衬底的表面的至少一部分上的电流表面调制形成的电流衍射光栅图案，其在表面部分上表现出基本均匀的光栅线宽。衬底在用于图案化衬底的流体中的浸入深度逐渐改变，使得表面部分上的不同点被浸入不同的浸渍时间。流体将表面部分上的每个浸渍点处的表面调制线宽改变由该点的浸渍时间确定的量，从而将电流衍射光栅图案改变为通过表面上的新表面调制形成的新的衍射光栅图案表现出在表面部分上变化的空间变化的光栅线宽的部分。

4. 发明申请

US20100315719A1 Exit Pupil Expanders with Spherical and Aspheric Substrates 有权
标题翻译：退出具有球形和非球面衬底的瞳孔扩展器
公开(公告)号：US20100315719A1
公开(公告)日：2010-12-16
申请号：US12746226
申请日：2007-12-17
申请人： Pasi Saarikko , Tapani Levola
发明人： Pasi Saarikko , Tapani Levola
IPC分类号： G02B27/01
CPC分类号： G02B27/0081 , G02B5/18 , G02B27/0101 , G02B2027/011 , G02B2027/0123 , G02B2027/0127
摘要： The specification and drawings present a new apparatus and method for using exit pupil expanders (EPE) with spherical or aspheric non-flat substrates and a plurality of diffractive elements for expanding the exit pupil of a display for viewing in order to reduce image spreading. This can also enable improved image resolution and utilization of shorter focus distances.
摘要翻译：本说明书和附图提出了一种用于使用具有球形或非球面非平面基板的出射光瞳扩展器（EPE）和用于展开显示器的出射光瞳的多个衍射元件以便减少图像扩展的新装置和方法。这也可以实现更好的图像分辨率和较短焦距的利用。

5. 发明授权

US08194325B2 Optical apparatus and method 有权
标题翻译：光学装置及方法
公开(公告)号：US08194325B2
公开(公告)日：2012-06-05
申请号：US12494719
申请日：2009-06-30
申请人： Tapani Levola , Pasi Saarikko
发明人： Tapani Levola , Pasi Saarikko
IPC分类号： G02B27/14 , G02B5/18
CPC分类号： G02B27/0081 , G02B5/18 , G02B6/00 , G02B27/0101 , G02B27/095 , G02B2027/0125
摘要： An apparatus and a method are provided. The apparatus including: a light expander configured to expand light, input into the light expander, in a first dimension, and configured to provide diverging light that diverges in the first dimension; and an optical device configured to redirect diverging light, received from the light expander, to produce converging light that converges in the first dimension.
摘要翻译：提供了一种装置和方法。该装置包括：光扩展器，被配置为在第一维度上将光扩展到光扩展器中，并且被配置为提供在第一维度上分叉的发散光; 以及光学装置，其被配置为重定向从所述光扩展器接收的发散光，以产生会聚在所述第一维度上的会聚光。

6. 发明申请

US20150185475A1 EYE TRACKING APPARATUS, METHOD AND SYSTEM 有权
标题翻译：眼睛跟踪装置，方法和系统
公开(公告)号：US20150185475A1
公开(公告)日：2015-07-02
申请号：US14140987
申请日：2013-12-26
申请人： Pasi Saarikko , Xinye Lou , Scott McEldowney , Steven Robbins , Tapani Levola
发明人： Pasi Saarikko , Xinye Lou , Scott McEldowney , Steven Robbins , Tapani Levola
IPC分类号： G06K9/00 , G02B6/34 , G06F3/01 , G02B27/01 , G02B6/36
CPC分类号： G02B27/0093 , A61B3/113 , G02B6/02085 , G02B6/34 , G02B27/0172 , G02B2027/0107 , G02B2027/0138 , G02B2027/0178 , G06F3/013 , H04N13/383
摘要： A transparent waveguide for use in eye tracking includes an input-coupler and an output-coupler. The input-coupler comprises a plurality of curved grating lines having a radially varying pitch. When positioned in front of an eye illuminated with infrared light, infrared light beams reflected from the eye and incident on the input-coupler enter the waveguide at the input-coupler, propagate through the waveguide by way of total internal reflections, and exit the waveguide proximate the output-coupler. The radially varying pitch of the curved grating lines of the input-coupler provides angular encoding of infrared light incident on the input-coupler, and more specifically, causes different beams of infrared light incident on respective different horizontal and vertical positions of the input-coupler to propagate through the waveguide at respective different angles of reflection and exit the waveguide at respective different angles of incidence relative to a surface of the waveguide through which infrared light beams exit.
摘要翻译：用于眼睛跟踪的透明波导包括输入耦合器和输出耦合器。输入耦合器包括具有径向变化间距的多个弯曲光栅线。当放置在用红外线照射的眼睛前方时，从眼睛反射并入射到输入耦合器上的红外光束进入输入耦合器处的波导，通过全内反射传播通过波导，并且离开波导靠近输出耦合器。输入耦合器的弯曲光栅线的径向变化的间距对入射到输入耦合器上的红外光的角度编码提供了角度编码，更具体地说，使不同的红外光束入射在输入耦合器的不同的水平和垂直位置上以相应的不同的反射角传播通过波导并以相应的入射角相对于波导的表面离开波导，红外光束通过该表面离开。

7. 发明申请

US20160283618A1 Diffraction Grating Modelling 审中-公开
$Diffraction Grating Modelling$
标题翻译：衍射光栅建模
公开(公告)号：US20160283618A1
公开(公告)日：2016-09-29
申请号：US14670242
申请日：2015-03-26
申请人： Tapani Levola , Pasi Saarikko
发明人： Tapani Levola , Pasi Saarikko
IPC分类号： G06F17/50
CPC分类号： G06F17/5009 , G02B5/18 , G06F17/50
摘要： A diffraction grating modelling systems and methods are disclosed. A database comprises a plurality of records, each labelled by a diffraction parameter set that describes a diffraction scenario. A scattering map describes a field transformation induced in that scenario. Various techniques for maintaining and using the database are disclosed.
摘要翻译：公开了衍射光栅建模系统和方法。数据库包括多个记录，每个记录由描述衍射场景的衍射参数集标记。散射图描述了在该场景中诱发的场变换。公开了用于维护和使用数据库的各种技术。

8. 发明申请

US20160231566A1 Display System 有权
标题翻译：显示系统
公开(公告)号：US20160231566A1
公开(公告)日：2016-08-11
申请号：US14617574
申请日：2015-02-09
申请人： Tapani Levola , Pasi Saarikko
发明人： Tapani Levola , Pasi Saarikko
IPC分类号： G02B27/01 , G02F1/01 , G02B5/18
CPC分类号： G02B27/0172 , G02B5/1842 , G02B5/3083 , G02B6/34 , G02B27/0081 , G02B27/4261 , G02B27/4272 , G02B2027/011 , G02B2027/0125 , G02B2027/013 , G02B2027/0132 , G02B2027/0174 , G02F1/011 , G02F1/0136
摘要： A display system comprises an optical waveguide and a light engine. The light engine generates multiple input beams which form a virtual image. An incoupling grating of the waveguide couples each beam into an intermediate grating of the waveguide, in which that beam is guided onto multiple splitting regions. The intermediate grating, formed by modulations on a first surface of the waveguide, splits that beam at the splitting regions to provide multiple substantially parallel versions of that beam. Those multiple versions are coupled into an exit grating of the waveguide, in which the multiple versions are guided onto multiple exit regions. The exit grating diffracts the multiple versions of that beam outwardly. The multiple input beams thus cause multiple exit beams to exit the waveguide which form a version of the virtual image. A polarization state of each beam interacting with the modulations is controlled by a retarder film.
摘要翻译：显示系统包括光波导和光引擎。光引擎产生形成虚像的多个输入光束。波导的耦合光栅将每个光束耦合到波导的中间光栅中，其中该光束被引导到多个分割区域上。通过在波导的第一表面上的调制形成的中间光栅将该光束在分离区域处分裂，以提供该光束的多个基本平行的形式。这些多个版本耦合到波导的出口光栅中，其中多个版本被引导到多个出口区域。出射光栅向外衍射该光束的多个版本。因此，多个输入光束导致多个出射光束离开形成虚像的版本的波导。与调制相互作用的每个光束的偏振状态由延迟膜控制。

9. 发明申请

US20160033784A1 Optical Components 审中-公开
标题翻译：光学元件
公开(公告)号：US20160033784A1
公开(公告)日：2016-02-04
申请号：US14447419
申请日：2014-07-30
申请人： Tapani Levola , Lauri Sainiemi , Pasi Saarikko
发明人： Tapani Levola , Lauri Sainiemi , Pasi Saarikko
IPC分类号： G02B27/42 , G02B6/34 , G02B5/18
CPC分类号： G02B27/4205 , G02B5/1828 , G02B5/1842 , G02B5/1857 , G02B6/0058 , G02B6/34 , G02B27/0103 , G02B2027/0174
摘要： Various optical components are disclosed herein, which have diffraction gratings formed by modulations of at least portions of their outer surfaces. The gratings exhibit gradually varying characteristics that vary over the surface portion so as to gradually vary the manner in which the incident light is diffracted at different points on the surface portion. Display systems incorporating such optical components are also disclosed.
摘要翻译：本文公开了各种光学部件，其具有通过至少部分其外表面的调制形成的衍射光栅。光栅呈现逐渐变化的特性，其在表面部分上变化，以便在表面部分上的不同点逐渐改变入射光衍射的方式。还公开了包含这种光学部件的显示系统。

10. 发明授权

US08160411B2 Device for expanding an exit pupil in two dimensions 有权
标题翻译：用于在两个维度上扩展出射光瞳的装置
公开(公告)号：US08160411B2
公开(公告)日：2012-04-17
申请号：US12521577
申请日：2006-12-28
申请人： Tapani Levola , Pasi Saarikko
发明人： Tapani Levola , Pasi Saarikko
IPC分类号： G02B6/34 , G02B5/18
CPC分类号： G02B27/0172 , G02B27/0081 , G02B27/4205 , G02B27/4272 , G02B2027/0123 , G02B2027/0178
摘要： A diffractive beam expander (50) comprises an input grating (10), a crossed grating (20), and an output grating (30) implemented on a planar transparent substrate (7). The crossed grating (20) comprises a plurality of diffractive features (23) arranged along the lines of a first set of parallel lines (25) and along the lines of a second set of parallel lines (26) such that the lines (25) of the first set are parallel to the lines (26) of the second set. The lines of the first set have a first grating period and the lines of the second set have a second grating period. A light beam (B1) coupled into the substrate (7) by the input grating (10) impinges on the crossed grating (20) at a first location (EC1) and further locations (EC2). Interaction at the first location (EC1) provides several sub-beams (S00, S01, S10) which propagate in different directions. Further interactions at second locations (EC2) provide further sub-beams (V01, U10) which propagate in the same direction as the original in-coupled light (B1). Light is subsequently coupled out of the substrate (7) by the output grating (30) to provide a light beam (B2) which is expanded in two directions (SX, SZ) with respect to the beam (B0) impinging on the input grating. A virtual display device (200) may comprise said diffractive beam expander (50).
摘要翻译：衍射光束扩展器（50）包括输入光栅（10），交叉光栅（20）和实现在平面透明基板（7）上的输出光栅（30）。交叉光栅（20）包括沿着第一组平行线（25）的线并且沿着第二组平行线（26）的线布置的多个衍射特征（23），使得线（25）的第一组的平行于第二组的线（26）。第一组的线具有第一光栅周期，并且第二组的线具有第二光栅周期。通过输入光栅（10）耦合到衬底（7）中的光束（B1）在第一位置（EC1）和其它位置（EC2）处撞击交叉光栅（20）。在第一位置（EC1）的相互作用提供了在不同方向上传播的几个子光束（S00，S01，S10）。在第二位置（EC2）处的进一步的相互作用提供了在与原始耦合光（B1）相同的方向上传播的另外的子光束（V01，U10）。光随后通过输出光栅（30）耦合到基板（7）外，以提供相对于入射光栅（B0）的两个方向（SX，SZ）扩展的光束（B2）。虚拟显示设备（200）可以包括所述衍射光束扩展器（50）。

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