Video image projection apparatus

Details Video image projection apparatus Video image projection apparatus

H - Electricity

04

N

88/52

H04N 5/74 (2006.01) H04N 9/31 (2006.01)

Patent

CA 1099547

ABSTRACT OF THE DISCLOSURE A projecting apparatus provides at least two video sources and two lenses. Video images by the video sources are projected through the respective lenses, and are compounded on a screen. The principal axes of the two lenses are parallel with each other, and moreover to the normal of the screen in the horizontal direction or in the vertical direction, the normal passing through the center of the screen. Further, each of principal axes of respective lenses is deflected from the normal of the screen in the horizontal direction or the vertical direction of the screen. Furthermore, two video sources are deflected from respective principal axes of two lenses to compound respective video images coincidentally on the screen. By further providing a intercepting plate or two intercepting plates respective to lenses, the distributions of the brightness or each projected reflection are substantially uniform in the horizontal direction or the vertical direction of the screen.

302615

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