| 摘要 |
The present invention relates to a security envelope which can prevent camera photographing while allowing for the use of communication functions of a portable device having a camera function, such as a mobile phone or a tablet personal computer, even in a place where security is required. The security envelope of the present invention includes a transparent part in all surfaces or at least one surface of the envelope, wherein the transparent part includes a hologram layer such that the inside of the security envelope is visible to naked eyes, but a camera within the envelope cannot photograph the outside of the envelope. |
