发明名称 OPTICALLY VARIABLE SURFACE PATTERNS
摘要 The planar pattern is impressed in a backing (4) and is divided into M grid squares (6). Each grid square (6) is divided into N square portions (7), each square portion (7) being assigned to a pixel of one of N illustrations (3) and each having a diffraction element (8) which contains the information via a colour value, via a stage of the brightness value and via a viewing direction (15). The N illustrations (3) are composed of bundles of diffracted light and constitute, for example, individual alphanumeric characters, parts of text, views of objects or persons, etc., which are visible in the N viewing directions (15). The planar patterns can be viewed in reflection or transmission. The backing (4) can be constructed as an adhesive label. …<IMAGE>…
申请公布号 AU635255(B2) 申请公布日期 1993.03.18
申请号 AU19900053729 申请日期 1990.04.19
申请人 LANDIS & GYR BETRIEBS AG 发明人 GREGOR ANTES
分类号 B41J2/465;B41M3/14;B42D15/10;G02B5/18;G03H1/30;G06T1/00;G09F19/14 主分类号 B41J2/465
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