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"A pencil is placed in it and the middle part of the pencil “disappeared”, while the background pattern remains clear and visible."
Invisible-Cloak-Pencil-Nov-news.jpg

Invisible-Cloak-Pencil-Nov-news-2.jpg

"The research team member is presenting the device. A beam of light “turns” within the device but transmits along the original direction outside the device."
Invisible-Cloak-Pencil-Nov-news-1.jpg
http://www.opli.net/opli_magazine/eo/2013/the-research-team-of-zhejiang-university-developed-a-hexagonal-columnar-invisible-cloak.aspx