| 摘要 |
PCT No. PCT/DE95/00827 Sec. 371 Date Jan. 27, 1997 Sec. 102(e) Date Jan. 27, 1997 PCT Filed Jun. 22, 1995 PCT Pub. No. WO96/01457 PCT Pub. Date Jan. 18, 1996In order to improve a structure arrangement comprising a plurality of portions having a relief structure with an optical-diffraction effect, in particular for visually identifiable optical security elements for value-bearing documents, for example banknotes, credit cards, passes or cheque documents, or other articles to be safeguarded, with a first group of portions with a first structure having an optical-diffraction effect, which first group is disposed on a surface region of the structure arrangement, and at least one further group of portions with a further structure which has an optical-diffraction effect and which is different from the first structure, in such a way that a given item of information can be imparted to a viewer of the structure arrangement with a high level of intensity and uniformly over the entire extent of a preselected viewing angle range, it is proposed that the structure of the portions of the first and the at least one further group respectively is such that, upon illumination of the structure arrangement, visually perceptible items of information originating from the portions of different groups are identical, as viewed from different sub-ranges of the viewing angle range. |
