| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_db083d277ed4b6e9d212a2a9d95aca29 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G02B27-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B42D25-328
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G02B30-27
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G02B3-0056
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G03H1-0244
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B42D25-342
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B42D25-355
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G03H1-0011
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B42D25-29 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B42D25-342
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B42D25-328 |
| filingDate |
2018-05-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c46259ec8c79631c28c002507770f0c0
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_2e61d9c022be9dda5d211cf273ce74f6
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b6feed78653d4f2b990a6d197081319c |
| publicationDate |
2020-04-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
EP-3630499-A2 |
| titleOfInvention |
Holographic security device and method of manufacture thereof |
| abstract |
A holographic security device is provided. The holographic security device comprises a holographic image layer which when illuminated exhibits the optically variable effect of viewing first and second overlapping patterns of elements, wherein; the first pattern of elements comprises a first set of image elements and at least a second set of image elements, and the pitches and relative locations of the first and second patterns of elements are such that, upon illumination of the device; at a first viewing position of the security device the first set of image elements are exhibited by the holographic image layer and at a second, different viewing position of the security device the second set of image elements are exhibited by the holographic image layer. An associated method of manufacture of the security device is also disclosed. |
| priorityDate |
2017-05-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |