| 摘要 |
<p>The utility model relates to the field of advertising and is used for outside advertisements, and specifically for realizing visually animated information on various types of separated surface on the street, and specifically on any delimiting elements, for example on billboards, big boards, light boxes, building walls or roofs, etc. What is proposed is a projection extender comprising a protective housing, and a bracket for mounting the protective housing on an advertising structure, wherein the protective housing contains a projector which is optically connected to a screen on the advertising medium of the advertising structure, and a digital signal source which is connected to the projector. The protective housing additionally contains a cooling system, a heating system, a system for controlling video content, which system is connected to the digital signal source, an illumination detector which is connected to an apparatus for switching the electrical current of the projector and digital signal source on and off, a voltage stabilizer, a modem and a Wi-Fi device, which are intended for the function of remotely controlling the video content.</p> |
