公开(公告)号：WO1996010197A1

公开(公告)日：1996-04-04

申请号：PCT/US1995011793

申请日：1995-09-18

Applicant: REFLEXITE CORPORATION

Inventor： REFLEXITE CORPORATION ,  NILSEN, Robert, B.

IPC: G02B05/124

CPC classification number: G02B5/124

Abstract: Cube-corner retroreflective articles having wide observation angle performance, uniform orientation angle performance and wide angularity in multiple viewing planes are provided by very small (0.0005 inch to less than 0.0006 inch) size prism elements (10) in which pairs (10A, 10B) of such elements are tilted; preferably in a negative direction. In an alternate embodiment, retroreflective prisms are formed with windows (10F) thereon by removing a portion of the prism mold on one prism pair (10B, 10C) leaving the apex of the prism intact. In this manner smaller prisms are formed adjacent larger prisms.

Abstract translation: 通过非常小（0.0005英寸至小于0.0006英寸）的棱镜元件（10）提供具有宽的观察角性能，均匀的取向角性能和多个观察平面中的宽角度的立体角回归物品，其中成对（10A，10B） 的这些元素是倾斜的; 优选地在负方向。 在替代实施例中，通过在一个棱镜对（10B，10C）上移除棱镜模具的一部分而将棱镜的顶点保持原样，通过在其上形成有窗口（10F）的后向反射棱镜。 以这种方式，在较大棱镜附近形成较小的棱镜。

公开(公告)号：WO1995011466A1

公开(公告)日：1995-04-27

申请号：PCT/US1994011943

申请日：1994-10-20

Applicant: MINNESOTA MINING AND MANUFACTURING COMPANY

Inventor： MINNESOTA MINING AND MANUFACTURING COMPANY ,  SMITH, Kenneth, L. ,  HUANG, Tzu-Li, J. ,  CODERRE, James, C.

IPC: G02B05/124

CPC classification number: G02B5/124 ,  B29C39/148 ,  Y10S359/90 ,  Y10T428/24479 ,  Y10T428/24521 ,  Y10T428/25 ,  Y10T428/252 ,  Y10T428/254

Abstract: A retroreflective article (10) has a body portion (14) and a multiple of cube-corner elements (12) that project from a rear side (20) of the body portion (14). The body portion (14) includes a body layer (18) that contains a light-transmissible polymeric material having an elastic modulus less than 7 x 10 pascals. The cube-corner elements (12) contain a light transmissible polymeric material having an elastic modulus greater than 16 x 10 pascals. A retroreflective article of this construction can be highly flexed while maintaining good retroreflective performance.

Abstract translation: 逆反射制品（10）具有从主体部分（14）的后侧（20）突出的主体部分（14）和多个立体角元件（12）。 主体部分（14）包括主体层（18），其包含弹性模量小于7×10 8帕斯卡的透光聚合材料。 立体角元件（12）包含具有大于16×10 8帕斯卡的弹性模量的透光聚合材料。 这种结构的逆反射制品可以高度挠曲，同时保持良好的回射性能。

公开(公告)号：WO1995011464A2

公开(公告)日：1995-04-27

申请号：PCT/US1994011940

申请日：1994-10-20

Applicant: MINNESOTA MINING AND MANUFACTURING COMPANY

Inventor： MINNESOTA MINING AND MANUFACTURING COMPANY ,  BENSON, Olester, Jr. ,  FREY, Cheryl, M. ,  SHUSTA, Jeanine, M. ,  NESTEGARD, Susan, K. ,  LIGHTLE, Vera, L. ,  SMITH, Kenneth, L. ,  BACON, Chester, A., Jr.

IPC: G02B05/124

CPC classification number: G02B5/124 ,  B29C39/148

Abstract: A method for manufacturing flexible cube corner retroreflective sheeting comprising the steps of: a) providing a tool having a molding surface; b) applying to the molding surface a volume of a lowable resin composition; c) contacting the resin composition with a first major surface of an overlay film; d) minimizing excess resin composition; e) curing the resin composition to form a sheeting comprising an array of cube corner elements bonded to the overlay film; f) removing the sheeting from the tool; and g) applyingmechanical stress to the sheeting so as to cause a fractured separation of substantially each individual cube corner element from surrounding cube corner elements. Also, flexible retroreflective sheetings comprising: a) a two-dimensional array of substantially independent cube corner elements, the array comprising a first polymetric material, and b) an overlay film having two major surfaces and comprising a second polymeric material, the array being bonded to the first major surface of the overlay film. Also safety devices incorporating such sheetings.

Abstract translation: 一种用于制造柔性立方角回射片的方法，包括以下步骤：a）提供具有成型表面的工具; b）向模制表面施加一定体积的低树脂组合物; c）使树脂组合物与覆盖膜的第一主表面接触; d）最小化过量的树脂组成; e）固化树脂组合物以形成片材，其包含结合到覆盖膜的立方角元件阵列; f）从工具上取下薄片; 并且g）对片材施加机械应力，从而使基本上每个单独的立体角元件与周围的立体角元件断裂分离。 而且，挠性逆反射片材包括：a）基本上独立的立体角元件的二维阵列，该阵列包括第一聚甲基材料，和b）具有两个主表面并包含第二聚合物材料的覆盖膜，所述阵列被键合 覆盖膜的第一主表面。 还有包括这种片材的安全装置。

公开(公告)号：WO1995003558A1

公开(公告)日：1995-02-02

申请号：PCT/US1994007646

申请日：1994-07-07

Applicant: REFLEXITE CORPORATION

Inventor： REFLEXITE CORPORATION ,  PHILLIPS, Edward, D.

IPC: G02B05/124

CPC classification number: G02B5/124 ,  Y10S359/90 ,  Y10T428/2457

Abstract: A retroreflective structure (10) having prism elements (14) and a method for making the structure (10) are disclosed. The retroreflective structure (10) is formed of an extensible, elastomeric film (12) and a rigid, non-extensible array of retroreflective prism elements (14). The array (14) is bonded to the elastomeric film (12), thereby forming a retroreflective structure (10) which can be significantly stretched without significantly diminishing the retroreflective properties of the structure.

Abstract translation: 公开了一种具有棱镜元件（14）的回射结构（10）和用于制造该结构（10）的方法。 回射结构（10）由可伸展的弹性膜（12）和刚性的不可伸展的定向反射棱镜元件阵列（14）形成。 阵列（14）结合到弹性体膜（12）上，从而形成可以显着拉伸的回射结构（10），而不显着地减小结构的回射性能。

公开(公告)号：WO1994018581A1

公开(公告)日：1994-08-18

申请号：PCT/EP1993001868

申请日：1993-07-16

Applicant: KERNFORSCHUNGSZENTRUM KARLSRUHE GMBH ,  BOHN, Lothar ,  WEINBRECHT, Bruno ,  SCHALLER, Thomas ,  BIER, Wilhelm ,  SCHUBERT, Klaus

Inventor： KERNFORSCHUNGSZENTRUM KARLSRUHE GMBH

IPC: G02B05/124

CPC classification number: B29C33/302 ,  B29C2033/385 ,  G02B5/124

Abstract: The invention relates to a shaping tool for the production of a triple mirror a) with a shaping side (7) on which there are structural components (5, 6) which are periodically repeated in a plane in the form of three abutting surfaces of a cube, the spatial diagonals of which run perpendicularly to the plane; b) which is composed of a number of blades (1) of thickness (d) with two plane side surfaces and a stepped edge region in which a plurality of vertically superimposed square sides with a side length (d) are formed as part of the structural components; c) the side surfaces of the blades are interconnected and the edge regions of the blades adjoin one another; d) each blade is staggered by d/ 2ROOT 2 in relation to the neighbouring blades and e) includes an angle alpha =54.736 DEG with the plane. The invention also relates to a process for producing such a shaping tool in which a stack of blades (1) is ground into triangular grooves, and novel triple mirrors with cubic structural components, the edge length of which is shorter than 500 mu m.