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    PROJECTED TEXTURE PATTERN FOR INTRA-ORAL 3D IMAGING
    1.
    发明申请
    PROJECTED TEXTURE PATTERN FOR INTRA-ORAL 3D IMAGING 审中-公开

    公开(公告)号：WO2019155401A1

    公开(公告)日：2019-08-15

    申请号：PCT/IB2019/050996

    申请日：2019-02-07

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： STEGALL, David B. ,  SCOTT, Shannon D. ,  KASTANEK, Amanda L.

    IPC: A61B5/00

    Abstract: Apparatus for powder-free intra-oral 3D imaging by using a projected texture pattern. A projector projects a random texture pattern of light to teeth to be imaged, and a digital image sensor receives the projected texture pattern from the teeth. The reflected pattern of light reflects and scatters from the teeth. The texture pattern can be a grid having clusters of bright and dark blocks in a pseudo-random arrangement and can provide for powder-free intra-oral 3D imaging by using the pattern to optically simulate powder applied to the teeth. Polarizers can be used in the optical path to transmit the directly reflected light to the image sensor and suppress or discard some of the unwanted scattered light.

    OPTICAL INTERCONNECT FOR EDGE COUPLING
    2.
    发明申请
    OPTICAL INTERCONNECT FOR EDGE COUPLING 审中-公开

    公开(公告)号：WO2022084767A1

    公开(公告)日：2022-04-28

    申请号：PCT/IB2021/058599

    申请日：2021-09-21

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： HAASE, Michael A. ,  STEGALL, David B.

    IPC: G02B6/42 ,  G02B6/30

    Abstract: An optical assembly includes a substrate with a plurality of optical waveguides, and a unitary optics array assembled to the substrate. The unitary optics array includes a support portion attached to the substrate, an input surface facing a first waveguide end of each optical waveguide, a redirecting surface, and an output surface. For each optical waveguide, the input surface is configured to receive and transmit a central light ray propagating through and emitted from the first waveguide end of the optical waveguide, and the redirecting surface is configured to receive the central light ray transmitted by the input surface along a first direction and redirect the received central light ray along a second direction different from the first direction, the redirected central light ray exiting the optics array as an output central light ray through the output surface.

    OLED LIGHT EXTRACTION FILMS LAMINATED ONTO GLASS SUBSTRATES
    3.
    发明申请
    OLED LIGHT EXTRACTION FILMS LAMINATED ONTO GLASS SUBSTRATES 审中-公开
    OLED光提取膜层压在玻璃基材上

    公开(公告)号：WO2011133629A2

    公开(公告)日：2011-10-27

    申请号：PCT/US2011/033183

    申请日：2011-04-20

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： LE, Ha T. ,  ZHANG, Jun-Ying ,  LAMANSKY, Sergey A. ,  TAPIO, Scott M. ,  HAO, Encai ,  STEGALL, David B. ,  MOLLENHAUER, Serena L.

    IPC: G02B5/02 ,  H05B33/02

    CPC classification number: G02B1/118 ,  B82Y20/00 ,  G02B1/005 ,  G02B1/14 ,  G02B2207/101 ,  Y10T156/10

    Abstract: A light extraction film laminated to a glass substrate for organic light emitting diode (OLED) devices. The light extraction film includes a flexible substantially transparent film, a low index nanostructured layer applied to the film, and a high index planarizing backfill layer applied over the nanostructured layer. A glass substrate is laminated to the flexible substantially transparent film on a side opposite the nanostructured layer and including an ultra-low index region between the film and the glass substrate. The ultra-low index region is used to reduce optical losses occurring with the glass substrate.

    Abstract translation: 层叠到有机发光二极管（OLED）器件的玻璃基板上的光提取膜。 光提取膜包括柔性基本上透明的膜，施加到膜的低折射率纳米结构层和施加在纳米结构层上的高折射率平面化回填层。 将玻璃基板层压到与纳米结构层相对的一侧上的柔性基本上透明的膜上，并且在膜和玻璃基板之间包括超低折射率区域。 超低折射率区域用于减少与玻璃基板发生的光学损耗。

    FABRICATION OF STRUCTURES IN AN OPTICAL SUBSTRATE
    5.
    发明申请
    FABRICATION OF STRUCTURES IN AN OPTICAL SUBSTRATE 审中-公开
    在光学基板上制造结构

    公开(公告)号：WO2006068707A1

    公开(公告)日：2006-06-29

    申请号：PCT/US2005/039955

    申请日：2005-11-04

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： BIYIKLI, Levent ,  PORQUE, Jerome C. ,  BATTIATO, James M. ,  STEGALL, David B.

    IPC: G02B6/02

    CPC classification number: G02B6/02138 ,  G02B6/02133 ,  G02B6/02152

    Abstract: A system and method for fabricating structures (52) in an optical substrate (54). An optical element (80) produces first and second write beams (110, 112) that intersect at a first intersection location (112) at the optical substrate (54). The first intersection location (118) includes a fringe pattern (52) produced by the first and second write beams (110, 112). The optical element (80) also produces first and second reference beams (114, 116) that intersect and are recombined at a second intersection location (119) in substantially the same plane as the first intersection location (118). A controller then controls relative positioning between the optical substrate (54) and the fringe pattern based on a signal derived from the recombined first and second reference beams (114, 116).

    Abstract translation: 一种用于在光学基板（54）中制造结构（52）的系统和方法。 光学元件（80）产生在光学基板（54）处的第一交叉位置（112）处相交的第一和第二写入光束（110,112）。 第一交叉位置（118）包括由第一和第二写入光束（110,112）产生的条纹图案（52）。 光学元件（80）还产生第一和第二参考光束（114,116），其在与第一相交位置（118）基本相同的平面中的第二交叉点（119）处相交并重新组合。 控制器然后基于从重组的第一和第二参考光束（114,116）导出的信号来控制光学基板（54）和条纹图案之间的相对定位。

    3D IMAGE CAPTURE APPARATUS WITH COVER WINDOW FIDUCIALS FOR CALIBRATION
    6.
    发明申请
    3D IMAGE CAPTURE APPARATUS WITH COVER WINDOW FIDUCIALS FOR CALIBRATION 审中-公开
    3D图像捕获设备与盖窗口FIDUCIALS进行校准

    公开(公告)号：WO2016105991A1

    公开(公告)日：2016-06-30

    申请号：PCT/US2015/065480

    申请日：2015-12-14

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： STEGALL, David B. ,  KRYZHNIY, Vladimir V. ,  HANSEN, Eric S. ,  EID, Aya ,  SCOTT, Shannon D. ,  YUN, Zhisheng ,  GRAHAM, James L. II

    IPC: H04N13/02 ,  H04N13/00

    CPC classification number: H04N13/257 ,  A61B1/00057 ,  A61B1/00096 ,  A61B1/00172 ,  A61B1/00177 ,  A61B1/24 ,  A61C9/0053 ,  G02B27/0075 ,  G02B27/32 ,  G03B17/17 ,  H04N5/2252 ,  H04N5/2253 ,  H04N5/2256 ,  H04N13/236 ,  H04N13/246 ,  H04N17/002

    Abstract: A 3D imaging apparatus with enhanced depth of field to obtain electronic images of an object for use in generating a 3D digital model of the object. The apparatus includes a housing having mirrors positioned to receive an image from an object external to the housing and provide the image to an image sensor. The optical path between the object and the image sensor includes an aperture element having apertures for providing the image along multiple optical channels with a lens positioned within each of the optical channels. The apparatus also includes a transparent cover positioned within the optical path and having a plurality of fiducials. The depth of field of the apparatus includes the cover, allowing the fiducials to be used to calibrate the apparatus or verify and correct the existing calibration of it.

    Abstract translation: 一种具有增强的景深以获得用于生成对象的3D数字模型的对象的电子图像的3D成像装置。 该装置包括具有反射镜的壳体，该反射镜定位成从外壳外部的物体接收图像，并将图像提供给图像传感器。 物体和图像传感器之间的光路包括具有孔的孔径元件，该孔径用于沿着多个光学通道提供具有位于每个光学通道内的透镜的图像。 该装置还包括位于光路内并具有多个基准的透明盖。 设备的景深包括盖子，允许使用基准来校准装置，或验证和校正其现有校准。

    POWDER FOR ENHANCING FEATURE CONTRAST FOR INTRAORAL DIGITAL IMAGE SCANNING
    8.
    发明申请
    POWDER FOR ENHANCING FEATURE CONTRAST FOR INTRAORAL DIGITAL IMAGE SCANNING 审中-公开
    增强特征数字图像扫描功能的粉末

    公开(公告)号：WO2013148150A1

    公开(公告)日：2013-10-03

    申请号：PCT/US2013/030381

    申请日：2013-03-12

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： STEGALL, David B. ,  YUN, Zhisheng

    IPC: A61B1/24 ,  A61K6/00

    CPC classification number: A61B6/145 ,  A61B6/481

    Abstract: A method for intraoral image scanning using a powder with enhanced feature contrast. The method includes applying the powder to an intraoral structure and using an intraoral scanner in order to obtain electronic digital scan images of the intraoral structure. The powder includes a material providing enhanced feature contrast of the intraoral structure such as black particles combined with a white powder. The scan images can be used to create a 3D digital impression or model of the intraoral structure.

    Abstract translation: 一种使用增强特征对比度的粉末进行口内图像扫描的方法。 该方法包括将粉末施用于口内结构并使用口内扫描器以获得口内结构的电子数字扫描图像。 粉末包括提供口腔结构的增强的特征对比度的材料，例如与白色粉末组合的黑色颗粒。 扫描图像可用于创建3D数字印象或口腔内结构的模型。

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