One provides a captured image of a real-world setting that comprises both target content and at least one visual distraction. The housing has a cylindrical inner space and is penetrated by a rotationally fixed vertical axis divided into two. The Mo occurs primarily as dispersed Mo oxide clusters on the support while the Co is primarily in an octahedral configuration in a CoMoO4-like phase disposed on the Mo oxide clusters. The closing means also include second retaining means on the tubular portion proximate the open end and defining at least one closing point where the first retaining means is detachably connectable thereto, a distance between the closing point and the first end of the strip being greater than a distance between the first end of the strip and the first retaining means.