In the invited speech, the innovative security technology for a practical secure VLC services and the concept of encryption for VLC is described. The CSK transmitter and receiver configuration is explained. In addition, the improvement of conventional SDM (Space Division Multiplexing) CSK communication forimp realizing error correction
is stated. Finally, new communication service concepts that can be implemented with the smart glass applications using cyber-physical space by combining the VLC technology and a local computer database is stated and demonstrated.