中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

4 records (took 0.013 seconds)

    Roadway sign
    1.
    发明公开
    Roadway sign 失效
    道路标志

    公开(公告)号：EP0269327A3

    公开(公告)日：1988-09-14

    申请号：EP87310049

    申请日：1987-11-13

    Applicant: MINNESOTA MINING AND MANUFACTURING COMPANY

    Inventor： Woltman, Henry L. c/o Minnesota Mining and

    IPC: G02B05/124 ,  G02B05/13 ,  E01F09/00

    CPC classification number: G09F13/16 ,  G09F2013/0472

    Abstract: An improved roadway sign (2) comprising a light retroreflective indicia region and colored retroreflective background region is provided. The retroreflective properties of the regions are selective such that the ratio of the retroreflective brightness of the indicia to that of the background is substantially larger at observation locations within the legibility zone (8) for the sign, than the ratio is at observation locations outside (12) the legibility zone. The sign is conspicuous by virtue of the bright retroreflection and distinctive color of the background outside the legibility zone, yet is legible because of the increased contrast ratio of the indicia to the background in the legibility zone.

    REFLECTOR, ESPECIALLY FOR DISPLAY SIGNS AND ROAD SIGNS, AND A SIGN MANUFACTURED THEREOF
    2.
    发明申请
    REFLECTOR, ESPECIALLY FOR DISPLAY SIGNS AND ROAD SIGNS, AND A SIGN MANUFACTURED THEREOF 审中-公开
    反射器，特别是显示标志和道路标志，以及其制造的标志

    公开(公告)号：WO1991012542A1

    公开(公告)日：1991-08-22

    申请号：PCT/SE1991000078

    申请日：1991-02-04

    Applicant: STORRÅ AKTIEBOLAG ,  ODEMARK, Björn

    Inventor： STORRÅ AKTIEBOLAG

    IPC: G02B05/13

    CPC classification number: G02B5/124 ,  E01F9/619

    Abstract: A reflecting material, especially for display signs and road signs, is in the form of a plate (20) which is made of a transparent material and has a front surface (21) and, substantially parallel thereto, a reflecting rear surface (22). The rear surface has juxtaposed reflectors (23) with a reflecting surface coating (24). The reflectors are concave, as seen from the front surface of the plate, and so designed that light rays having an angle of incidence of about 7-65 DEG are reflected at an angle of reflection of about 0 DEG to the normal of the front surface of the plate.

    Abstract translation: 特别是用于显示标志和道路标志的反射材料是由透明材料制成并且具有前表面（21）并且基本上与其平行的反射后表面（22）的板（20）的形式， 。 后表面具有并置的具有反射表面涂层（24）的反射器（23）。 如从板的前表面看，反射器是凹形的，并且被设计成使得具有大约7-65°的入射角的光线以大约0°的反射角反射到前表面的法线 的盘子。

    RETROREFLECTIVE LENTICULAR ELEMENTS
    3.
    发明申请
    RETROREFLECTIVE LENTICULAR ELEMENTS 审中-公开
    反向选择性元素

    公开(公告)号：WO1998000737A1

    公开(公告)日：1998-01-08

    申请号：PCT/IL1997000216

    申请日：1997-06-26

    Applicant: BAR-YONA, Itzhak

    IPC: G02B05/13

    CPC classification number: G02B5/128 ,  E01F9/553 ,  E01F9/588 ,  E01F9/619 ,  E01F9/669 ,  G02B5/126

    Abstract: There is provided an integral array of retroreflective lenticular elements (1), each of which elements (1) being based on an imaginary, substantially prismatic body of a polygonal cross section and has two convexly curved end surfaces (4, 6), wherein the ratio of the angular range of retroreflection in the elevational plane thereof is predeterminable by the geometry of the cross section. There is also provided an integral array (2) of retroreflective lenticular elements (1) wherein the retroreflective lenticular elements (1) are arrayed in such a way that their convexly curved end surfaces (4, 6) constitute a tesselation pattern, with the major surfaces of the array (2) substantially fully tesselated.

    Abstract translation: 提供了一种后向反射透镜元件（1）的整体阵列，每个元件（1）基于多边形横截面的假想的基本棱柱体，并具有两个凸形弯曲的端面（4,6），其中 其前视平面中回射角度范围的比例可以通过横截面的几何形状来预先确定。 还提供了一种后向反射透镜元件（1）的整体阵列（2），其中所述回射透镜元件（1）以这样的方式排列，使得它们的凸形弯曲的端面（4,6）构成一个镶嵌图案，其中主要 阵列（2）的表面基本上完全镶嵌。

Patent Agency Ranking