A video projector includes a cabinet, and adjusters provided in bottom and top surfaces of the cabinet and located on left and right positions of the bottom and top surfaces close to the front surface of the cabinet. The adjusters are supported by shafts perpendicular to the front surface so as to be...http://www.google.com.tw/patents/US6793347?utm_source=gb-gplus-share專利 US6793347 - Video projector
