| 摘要 |
FIELD: methods for producing securities, protected from forgery, such as a banknote, identity card, note. ^ SUBSTANCE: method for protecting securities from forgery is realized by bending security, made with protecting element, consisting of at least two portions with through micro-apertures. These portions are combined with each other and/or with a separate decoding control sample with production of image visible in light, consisting only of combined portions of micro-apertures, and carrying information, making it possible to identify the security. Micro-apertures are made in form of rectangles with rounded narrow sides with transverse dimension from 10 micrometers to 500 micrometers, and with longitudinal dimension from 10 micrometers to 10 millimeters. If one of portions is shifted relatively to another one and/or relatively to separate decoding control sample, changing image is produced - unfolding, compressing or stretching wholly or partially, or a row of images different from each other. ^ EFFECT: increased protection level of securities. ^ 2 dwg |
