Title:
METHOD FOR PRODUCING SECURITY ELEMENTS HAVING A LENTICULAR FLIP
Document Type and Number:
WIPO Patent Application WO/2017/198486
Kind Code:
A3
Abstract:
Described is a method for producing a security element (1) in the form of a lenticular flip, comprising a micro-optical layer (11), a carrier substrate (13) and an image layer (14), the image layer (14) comprising n images (14l, 14r) for n = 1 to i which are visible from an n-th observation angle associated with the n-th image (14l, 14r), and n being at least 1. The images are imaged on a photoresist (16) with parallel light in contact print or by means of projection. After the photoresist (16) is developed, an image layer (14) which comprises the i images is present.
Inventors:
SCHILLING ANDREAS (CH)
STAUB RENÉ (CH)
SCHULER PHILIPP (CH)
HANSEN ACHIM (CH)
STAUB RENÉ (CH)
SCHULER PHILIPP (CH)
HANSEN ACHIM (CH)
Application Number:
PCT/EP2017/060931
Publication Date:
January 11, 2018
Filing Date:
May 08, 2017
Export Citation:
Assignee:
OVD KINEGRAM AG (CH)
International Classes:
B42D25/41; B42D25/42; G02B3/00; G02B30/27; G03B35/24
Foreign References:
| US20120091703A1 | 2012-04-19 | |||
| US5657111A | 1997-08-12 | |||
| DE102009040975A1 | 2011-03-24 | |||
| EP0560180A2 | 1993-09-15 | |||
| US20140177008A1 | 2014-06-26 |
Attorney, Agent or Firm:
ZINSINGER, Norbert et al. (DE)
Download PDF: