| 摘要 |
FIELD: physics. ^ SUBSTANCE: protective element has a flexible film-type body in which an electronic circuit is integrated, where said circuit is designed for storing information units relating to safety, and a radio-frequency antenna which is connected to the electronic circuit and which serves for contactless connection of the electronic circuit with a testing device. A first optically varying element is non-detachably attached to the surface of the flexible film-type body, where areas of said element at least cover an area of the film-type body in which the electronic circuit is located. A second optically varying element is similarly attached to the surface of the flexible film-type body. ^ EFFECT: protection of an electronic circuit integrated in a flexible film-type body from interference. ^ 24 cl, 14 dwg |
