PROJECTOR (VERSIONS) Russian patent published in 2005 - IPC

FIELD: projection of representation of information onto collective usage screens.

SUBSTANCE: both versions of projector have set of video cubes and system for fixing the cubes together. Each video cube has projection module provided with lens, screen module, system for fixing screen module with projection module. Screen module has frame, projection screen and system for fixing frame together with screen. Edges of screens are brought in touch. System for fixing frame with screen has spring ribbon ribs having tail and carrying ends. Each side of frame has slots fro placing tail ends of ribs. Each rib has window at its tail end for fixing the rib onto frame o screen module. There grooves in screen for connecting with carrier parts of ribs. Gap between fragments of projection screen is minimized within wide temperature range and presence vignette is reduced to minimum along the whole surface of screen.

EFFECT: improved quality of representation; improved reliability and comfort at usage; ability of multiple mounting and dismounting.

2 cl, 3 dwg