公开(公告)号：WO2010023444A1

公开(公告)日：2010-03-04

申请号：PCT/GB2009/002074

申请日：2009-08-26

Applicant: POPOVICH, Milan, Momcilo ,  WALDERN, Jonathan, David ,  HESS, Robert

Inventor： POPOVICH, Milan, Momcilo ,  WALDERN, Jonathan, David ,  HESS, Robert

IPC: G02B27/48 ,  H04N9/31

CPC classification number: G02B27/48 ,  H04N9/3161

Abstract: A laser projection display comprises in sequence: a laser source; beam expansion and collimation optics; first and second ESBG arrays; a microdisplay; a projection lens; and a screen. Each ESBG array is recorded in a Holographic Polymer Dispersed Liquid Crystal sandwiched between transparent substrates patterned to provide a two-dimensional array of independently switchable ESBG pixels. Each ESBG pixel is characterized by a first unique speckle state under said first applied voltage and a second unique speckle state under said second applied voltage. Each ESBG pixel diffracts incident collimated light into an illumination patch in proximity to the active surface of said microdisplay.

Abstract translation: 激光投影显示器依次包括：激光源; 光束扩展和准直光学; 第一和第二ESBG阵列; 微显示器 投影镜头; 和屏幕。 每个ESBG阵列被记录在被图案化的透明基板之间的全息聚合物分散液晶中，以提供可独立切换的ESBG像素的二维阵列。 每个ESBG像素的特征在于在所述第一施加电压下的第一唯一斑点状态和在所述第二施加电压下的第二独特散斑状态。 每个ESBG像素将入射的准直光衍射到靠近所述微显示器的有源表面的照明贴片中。

公开(公告)号：WO2009013597A3

公开(公告)日：2009-01-29

申请号：PCT/IB2008/001909

申请日：2008-07-22

Applicant: POPOVICH, Milan, Momcilo

Inventor： POPOVICH, Milan, Momcilo ,  WALDERN, Jonathan, David ,  STOREY, John, James

IPC: G02B27/48 ,  G02F1/13

Abstract: An Electrically Switchable Bragg Grating (ESBG) despeckler device comprising at least one ESBG element recorded in a hPDLC sandwiched between transparent substrates to which transparent conductive coatings have been applied. At least one of said coatings is patterned to provide a two-dimensional array of independently switchable ESBG pixels. Each ESBG pixel has a first unique speckle state under said first applied voltage and a second unique speckle state under said second applied voltage.

公开(公告)号：WO2009013597A2

公开(公告)日：2009-01-29

申请号：PCT/IB2008001909

申请日：2008-07-22

Applicant: POPOVICH MILAN MOMCILO

Inventor： POPOVICH MILAN MOMCILO ,  WALDERN JONATHAN DAVID ,  STOREY JOHN JAMES

CPC classification number: G02B27/48 ,  G02B5/1828 ,  G02B6/0023 ,  G02B6/0035 ,  G02B6/005 ,  G02B27/425 ,  G02F1/0136 ,  G02F1/13342 ,  G02F1/133553 ,  G02F1/133606 ,  G02F1/13731 ,  G02F2203/62 ,  G03B21/2033 ,  G03H1/0248 ,  G03H1/32

Abstract: An Electrically Switchable Bragg Grating (ESBG) despeckler device comprising at least one ESBG element recorded in a hPDLC sandwiched between transparent substrates to which transparent conductive coatings have been applied. At least one of said coatings is patterned to provide a two-dimensional array of independently switchable ESBG pixels. Each ESBG pixel has a first unique speckle state under said first applied voltage and a second unique speckle state under said second applied voltage.

Abstract translation: 一种电可转换布拉格光栅（ESBG）去斑板器件，包括至少一个记录在hPDLC中的ESBG元件，该hPDLC夹在透明衬底之间，透明导电涂层已被涂敷到透明衬底上。 所述涂层中的至少一个被图案化以提供可独立切换的ESBG像素的二维阵列。 每个ESBG像素在所述第一施加电压下具有第一独特散斑状态，在所述第二施加电压下具有第二独特散斑状态。

公开(公告)号：WO2008065509A2

公开(公告)日：2008-06-05

申请号：PCT/IB2007/003646

申请日：2007-11-26

Applicant: POPOVICH, Milan, Momcilo

Inventor： POPOVICH, Milan, Momcilo ,  MESSIOU, Antoine, Yvon

IPC: G02B17/04 ,  G02B17/08 ,  G02B25/04

CPC classification number: G02B17/0808 ,  G02B25/04

Abstract: A wide angle viewing apparatus for security applications is disclosed. The apparatus comprises a wide-angle lens and a diffusing screen. The wide-angle lens incorporates an image inverter and a means for eliminating stray light.

Abstract translation: 公开了用于安全应用的广角观察装置。 该装置包括广角镜头和漫射屏。 广角镜头包括图像反转器和消除杂散光的装置。

公开(公告)号：WO2007015141A3

公开(公告)日：2007-04-12

申请号：PCT/IB2006002093

申请日：2006-08-01

Applicant: POPOVICH MILAN MOMCILO

Inventor： POPOVICH MILAN MOMCILO

IPC: H04N9/31

CPC classification number: G02B27/48 ,  G03H1/32 ,  H04N9/3129

Abstract: The invention provides an illuminator comprising a laser source and an Electrically Switchable Bragg Grating (ESBG) device disposed along the path of the beam emitted by said laser. The laser and ESBG form part of an apparatus for illuminating an electronic display to provide a viewable image. At least one viewable surface illuminated by laser light exhibits speckle. The ESBG device is configured to generate a time sequential set o f speckle cells by operating on one or both of the optical phase or ray-angular characteristics o incoming light. The optical characteristics of the ESBG are changed by applying a time varying electric field to the ESBG. A human eye observing the display integrates said speckle cells to provide an apparently de-speckled final image. The ESBG device may be characterised as a variable diffractive axicon, a variable sub-wavelength grating or a variable diffractive diffuser. The ESBG device may comprise similarly characterised first and second gratings disposed in series. The laser source and ESBG device may be two-dimensional arrays.

Abstract translation: 照明器包括激光源和沿着由激光器发射的光束设置的电切换布拉格光栅（ESBG）装置。 激光器和ESBG网络是照亮电子显示器以获得可视图像的设备的一部分。 由激光照射的至少一个可视表面具有粒度。 ESBG被设计为通过激活入射光的光学相位和/或角度辐射特性来生成连续的一组粒度单元。 通过施加时变电场来改变ESBG装置的光学特性。 观察显示器的人眼集成了所述粒度单元以产生没有粒度的最终图像。 ESBG装置可被表征为可变衍射光栅，可变亚波长阵列或衍射衍射漫射器。 ESBG装置可以包括串联布置且特征相同的第一和第二网络。 激光源和ESBG设备可以是两个二维网络。

公开(公告)号：WO2006102073A2

公开(公告)日：2006-09-28

申请号：PCT/US2006/009701

申请日：2006-03-17

Applicant: SBG LABS, INC. ,  POPOVICH, Milan, Momcilo ,  WALDERN, Jonathan, David

Inventor： POPOVICH, Milan, Momcilo ,  WALDERN, Jonathan, David

IPC: G02F1/00

CPC classification number: G02F1/13342 ,  G02F1/133621 ,  G02F2201/305

Abstract: A display device comprises red, green, and blue laser sources; a Spatial Light Modulator (SLM) comprising at least one diffraction grating recorded in an electrically variable refractive index material; a control circuit coupled; an image generator; and a light stop. The SLM is illuminated with red light at a first angle, green light at a second angle and blue light at a third angle which defines a viewing direction. Diffracted red and green light and undiffracted blue light emerges from the SLM in the viewing direction. Undiffracted red and green light and diffracted blue light are blocked by the stop after emerging from the SLM. In one embodiment the SLM comprises one Bragg grating which diffracts red and green light into the viewing direction and blue light away from the viewing direction. In another embodiment the SLM comprises superimposed red, green and blue diffracting Bragg gratings.

Abstract translation: 显示装置包括红色，绿色和蓝色激光源; 空间光调制器（SLM），包括记录在电可变折射率材料中的至少一个衍射光栅; 耦合的控制电路; 图像发生器; 和一个停车。 SLM以第一角度的红光，第二角度的绿光和限定观察方向的第三角度的蓝光照亮。 衍射的红色和绿色光和未衍射的蓝色光从SLM在观察方向出现。 从SLM出现后，停止点将阻挡未分辨的红绿光和衍射蓝光。 在一个实施例中，SLM包括将红色和绿色光衍射到观察方向的一个布拉格光栅和远离观察方向的蓝色光。 在另一个实施例中，SLM包括叠加的红色，绿色和蓝色衍射布拉格光栅。

公开(公告)号：WO2004102226A3

公开(公告)日：2005-05-06

申请号：PCT/US2004014124

申请日：2004-05-06

Applicant: SBG LABS INC ,  POPOVICH MILAN MOMCILO ,  GUNTHER JOHN EDWARD ,  HANSOTTE ERIC

Inventor： POPOVICH MILAN MOMCILO ,  GUNTHER JOHN EDWARD ,  HANSOTTE ERIC

IPC: G02B20060101 ,  G02B6/34 ,  G03B13/00

CPC classification number: G02B27/0103 ,  G02B5/30 ,  G02B6/34 ,  G02B2027/0112 ,  G02B2027/0118 ,  G02B2027/0125 ,  G02B2027/0138 ,  G02F1/13342 ,  G03B13/00 ,  G03B13/06 ,  H04N5/2251

Abstract: A compact high quality and lightweight symbol generator (3) for projecting symbolic information into the field of view of a viewfinder is provided. The symbol generator (3) comprises at least one Electrically Switchable Bragg Gratings (ESBG) (13a, 12, 13b) device sandwiched between a pair of transparent plates (10, 11) which together function as a total internal reflection lightguide, switching electrodes and means for coupling illumination into the light guide. Each ESBG device contains information encoded in a multiplicity of separately switchable grating regions (12). A plurality of independently switchable transparent electrodes elements, substantially overlay the separately switchable grating regions (12).

Abstract translation: 提供了一种用于将符号信息投影到取景器的视场中的紧凑的高质量和轻便的符号发生器（3）。 符号发生器（3）包括夹在一对透明板（10,11）之间的至少一个电可切换布拉格光栅（ESBG）（13a，12，13b），它们一起用作全内反射光导，开关电极和 用于将照明耦合到光导中的装置。 每个ESBG设备包含以多个可单独切换的光栅区域（12）编码的信息。 多个可独立切换的透明电极元件，基本上覆盖可单独切换的光栅区域（12）。

公开(公告)号：WO1996017258A2

公开(公告)日：1996-06-06

申请号：PCT/GB1995002799

申请日：1995-11-30

Applicant: NOVUS LIMITED ,  POPOVICH, Milan, Momcilo

Inventor： NOVUS LIMITED

IPC: G01S17/87

CPC classification number: G01S17/87 ,  G01B11/26 ,  G01S5/16 ,  G01S7/4811

Abstract: An optical triangulation tracking system comprises means for creating at least two beams of light (14, 15), each being divergent, mounted relative to one another in a predetermined spatial and angular relationship such that the beams intersect one another thereby illuminating a volume of space (16), at least one reflector (3) relatively moveable within said volume of space, a light detection device (20) adapted to receive light from each of the two beams which has been reflected back along its path of transmission by the reflector and an image processing system (24, 25) connected to each of said detection devices, the arrangement being such that relative movement between said light beam creation means and the reflector will be monitored by the image processing system which determines from received images by triangulation spatial coordinates of the reflector thereby to determine the relative position within said volume of space of the reflector.

Abstract translation: 光学三角测量跟踪系统包括用于产生至少两束光（14,15）的装置，每个光束发散，以预定的空间和角度关系相对于彼此安装，使得光束彼此相交，从而照射一定空间的空间 （16），在所述空间体积内可相对移动的至少一个反射器（3），适于接收来自所述两个光束中的每一个的光的光检测装置（20），所述光已经被所述反射器沿其透射路径反射回来， 连接到每个所述检测装置的图像处理系统（24,25），所述布置使得所述光束产生装置和反射器之间的相对移动将被图像处理系统监视，所述图像处理系统通过三角测量空间坐标从接收的图像确定 从而确定反射器的所述空间体积内的相对位置。