中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

13 records (took 0.016 seconds)

    LOW-GLARE AUTOMOTIVE HEADLIGHT
    1.
    发明申请
    LOW-GLARE AUTOMOTIVE HEADLIGHT 审中-公开

    公开(公告)号：US20190120452A1

    公开(公告)日：2019-04-25

    申请号：US16089752

    申请日：2017-03-28

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： Kazuhiko Toyooka

    IPC: F21S41/135 ,  F21S41/19 ,  B60Q1/04

    Abstract: Methods for reducing road surface glare from an automotive headlight for an observer not viewing through a polarizing filter are described. The use of a reflective polarizer for reducing road surface glare from an automotive headlight for an observer not viewing through a polarizing filter are also described. A low-beam headlight including a light source, a housing, and a reflective polarizer is also described. The reflective polarizer has a pass axis and the pass axis forms an angle with a road surface between 45 degrees and 135 degrees.

    Imaging device
    2.
    发明授权
    Imaging device 有权

    公开(公告)号：US12189119B2

    公开(公告)日：2025-01-07

    申请号：US16759459

    申请日：2018-10-31

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： Kazuhiko Toyooka

    IPC: G02B27/00 ,  B60R11/04

    Abstract: An imaging device is provided including an imaging unit configured to capture an image, and a louver film placed in a visual field of the imaging unit. The louver film includes a light transmissive unit and a non-transmissive unit which are alternately placed. The imaging unit and the louver film are placed so that the optical axis of the imaging unit intersects a principal plane of the louver film.

    Display with nonwoven diffuser
    5.
    发明授权
    Display with nonwoven diffuser 有权
    显示无纺布扩散器

    公开(公告)号：US09494817B2

    公开(公告)日：2016-11-15

    申请号：US14374975

    申请日：2013-01-29

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： Kazuhiko Toyooka ,  Hiroki Matsuda ,  Masaki Yamamuro ,  James A. Thielen ,  Jayant Chakravarty ,  Eric W. Nelson ,  John A. Wheatley

    IPC: G02F1/1335 ,  B32B5/02

    CPC classification number: G02F1/133504 ,  B32B5/022 ,  B32B2457/20 ,  G02F1/1336 ,  G02F1/133606

    Abstract: The present disclosure describes a display system including a liquid crystal display panel and a light source emitting light capable of emitting light. A nonwoven diffuser element is disposed between the light source and the liquid crystal display panel. The polymeric nonwoven diffuser is non-orientated and has a fiber diameter of less than 50 micrometers, a fiber aspect ratio of length/diameter of greater than 5 and a basis weight in a range from 10 to 80 grams/meter2.

    Abstract translation: 本公开描述了一种显示系统，包括液晶显示面板和发射能够发光的光的光源。 非光漫射元件设置在光源和液晶显示面板之间。 聚合物非织造扩散器是非取向的，并且具有小于50微米的纤维直径，长度/直径大于5的纤维纵横比和基重在10至80克/米2的范围内。

    BACKLIGHT WITH MULTIPLE MICROREPLICATED OPTICAL FILMS
    6.
    发明申请
    BACKLIGHT WITH MULTIPLE MICROREPLICATED OPTICAL FILMS 有权

    公开(公告)号：US20250012963A1

    公开(公告)日：2025-01-09

    申请号：US18712326

    申请日：2022-12-02

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： Hideaki Shirotori ,  Kazuhiko Toyooka ,  Sayaka Kado ,  Gary T. Boyd

    IPC: F21V8/00

    Abstract: A backlight to a display includes an array of discrete light sources and a plurality of optical films disposed between the display and the light sources. Each film includes a regular array of intersecting ridges defining a plurality of through-holes. Each of the through-holes extends between first and second open ends of the through-hole. A cross-section of the optical film in a plane parallel to a thickness direction of the film includes two adjacent ridges in the array of ridges and a through-hole therebetween. The film has a maximum thickness hmax and the through-hole includes a side wall with a substantially vertical portion connected to the first open end of the through-hole and a substantially horizontal portion extending from the substantially vertical portion and connected to the second open end. The substantially horizontal portion has a minimum thickness hmin at a location between the two adjacent ridges, hmax/hmin≥2.

    MICROREPLICATED OPTICAL FILM
    7.
    发明申请
    MICROREPLICATED OPTICAL FILM 有权

    公开(公告)号：US20250004190A1

    公开(公告)日：2025-01-02

    申请号：US18884454

    申请日：2024-09-13

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： Hideaki Shirotori ,  Kazuhiko Toyooka ,  Sayaka Kado ,  Gary T. Boyd

    IPC: F21V8/00

    Abstract: A backlight includes a plurality of discrete light sources configured to face a display, and an optical film disposed on the light sources and below and proximate a first plane. The optical film includes a plurality of through-holes extending between first and second major surfaces of the optical film. Each through-hole has a first opening at the first major surface, and a second opening at the second major surface with an open area, A2. Each through-hole has length, H, such that H/A2 is greater than or equal to about 0.13. The light from the light sources has a first overall peak intensity in the first plane, and a first brightness uniformity across the first plane, and in the absence of the optical film, the light from the light sources has a second overall peak intensity in the first plane, and a second brightness uniformity across the first plane, such that the first and second overall peak intensities are different by less than about 20%, and the first brightness uniformity exhibits an improvement over the second brightness uniformity by at least 2.8%.

    Microreplicated optical film
    8.
    发明授权
    Microreplicated optical film 有权

    公开(公告)号：US12117642B2

    公开(公告)日：2024-10-15

    申请号：US18037396

    申请日：2021-11-10

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： Hideaki Shirotori ,  Kazuhiko Toyooka ,  Sayaka Kado ,  Gary T. Boyd

    IPC: F21V8/00

    CPC classification number: G02B6/0068 ,  G02B6/0016 ,  G02B6/0025 ,  G02B6/0073

    Abstract: A backlight includes a plurality of discrete light sources configured to face a display, and an optical film disposed on the light sources and below and proximate a first plane. The optical film includes a plurality of through-holes extending between first and second major surfaces of the optical film. Each through-hole has a first opening at the first major surface, and a second opening at the second major surface with an open area A2. Each through-hole has length, H, such that H/A2 is greater than or equal to about 0.13. The light from the light sources has a first overall peak intensity in the first plane, and a first brightness uniformity across the first plane, and in the absence of the optical film, the light from the light sources has a second overall peak intensity in the first plane, and a second brightness uniformity across the first plane, such that the first and second overall peak intensities are different by less than about 20%, and the first brightness uniformity exhibits an improvement over the second brightness uniformity by at least 2.8%.

    MIRROR INCLUDING REFLECTIVE BACKLIT DISPLAY
    9.
    发明申请
    MIRROR INCLUDING REFLECTIVE BACKLIT DISPLAY 审中-公开

    公开(公告)号：US20200262351A1

    公开(公告)日：2020-08-20

    申请号：US16063121

    申请日：2016-12-06

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： Kazuhiko Toyooka

    IPC: B60R1/12 ,  G02F1/1335 ,  F21V8/00

    Abstract: Mirrors including reflective backlit displays are described. In particular, mirrors including backlit displays with a backlight, a liquid crystal cell including a liquid crystal layer disposed between two opposing transparent substrate layers, a first reflective polarizer, and a second reflective polarizer are described. The first and second reflective polarizers are each directly laminated to one of the opposing transparent substrate layers. Mirrors described herein may be configured as vehicle rear-view mirrors.

    MICROREPLICATED OPTICAL FILM
    10.
    发明公开
    MICROREPLICATED OPTICAL FILM 审中-公开

    公开(公告)号：US20240004124A1

    公开(公告)日：2024-01-04

    申请号：US18037396

    申请日：2021-11-10

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： Hideaki Shirotori ,  Kazuhiko Toyooka ,  Sayaka Kado ,  Gary T. Boyd

    IPC: F21V8/00

    CPC classification number: G02B6/0068 ,  G02B6/0073 ,  G02B6/0025 ,  G02B6/0016

    Abstract: A backlight includes a plurality of discrete light sources configured to face a display, and an optical film disposed on the light sources and below and proximate a first plane. The optical film includes a plurality of through-holes extending between first and second major surfaces of the optical film. Each through-hole has a first opening at the first major surface, and a second opening at the second major surface with an open area A2. Each through-hole has length, H, such that H/A2 is greater than or equal to about 0.13. The light from the light sources has a first overall peak intensity in the first plane, and a first brightness uniformity across the first plane, and in the absence of the optical film, the light from the light sources has a second overall peak intensity in the first plane, and a second brightness uniformity across the first plane, such that the first and second overall peak intensities are different by less than about 20%, and the first brightness uniformity exhibits an improvement over the second brightness uniformity by at least 2.8%.

Patent Agency Ranking