PROJECTOR (VERSIONS) Russian patent published in 2010 - IPC G03B21/10 

FIELD: physics, optics.

SUBSTANCE: proposed device relates to information projection display on remove viewing displays. The proposed projector has a set of display cubes with an even number of cubes on the horizontal and a system for their mutual attachment. Each display cube has a projection module and a screen module connected to it, including a screen frame rigidly attached to the projection module, a projection screen and a system for mounting the projection screen to the screen frame with spring-loaded clamping devices. The device also has a single adjustable linear support on which the lower horizontal row of screens is mounted and rows of projection modules next on the vertical are fitted without spacing on each other. In each display cube, the projection screen is placed such that its centre lies above the optical axis of the projection module by ΔL_y=P/n_y·k_"уп". Projection module and screen frames have linear dimensions on the horizontal which are less than corresponding dimensions of projection screens by a value ΔL_X, which satisfies the relationship ΔL_x=2·P/n_x·n_"пэх"·k_"уп". Projection modules which are central relative the axis vertical symmetry of the projector are assembled on the horizontal with zero spacing, and each projection module next on the horizontal is fitted with spacing equal to ΔL_X.

EFFECT: increased quality of displaying information due to exclusion of gaps between projection screens during period variation of temperature and reduced deformation of the screens.

2 cl, 4 dwg