In a projector apparatus, one end of a fixing member is adhered to an outer peripheral portion of a back of a first screen, and a first pressing member having a protrusion is adhered to a back surface of the end of the fixing member. A fixing plate having a predetermined height is provided at an inside...http://www.google.es/patents/US6848793?utm_source=gb-gplus-sharePatente US6848793 - Projector apparatus
