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DOE for the formation of the effect of switching between two images when an element is turned by 180 degrees
An optical security element forming different 2D images when it is turned by 180 degrees is developed and manufactured for the first time. A synthesis technology is developed that incorporates the computation of the beam pattern in elementary hogels with sizes smaller than 100 microns, computation o...
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| Publicado en: | Sci Rep |
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| Main Authors: | , |
| Formato: | Artigo |
| Idioma: | Inglês |
| Publicado: |
Nature Publishing Group UK
2020
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| Assuntos: | |
| Acceso en liña: | https://ncbi.nlm.nih.gov/pmc/articles/PMC7327009/ https://ncbi.nlm.nih.gov/pubmed/32606344 https://ncbi.nlm.nih.govhttp://dx.doi.org/10.1038/s41598-020-67590-6 |
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