The present invention relates to newly identified human sulfatases. The PAC is able to recognize characteristics of an authorized person and allows only that person to rapidly communicate authenticated identification and requests to access, control and transact with many \u201csmart\u201d Instrumentalities designed with compatible communication capabilities. A reflecting layer 13 adapted to reflect the image light, which has been transmitted through the unit prism shapes 12, is provided on the rear face side of each unit prism shape 12.