Rear projection apparatus

Details Rear projection apparatus Rear projection apparatus

G - Physics

03

B

88/72, 88/93

G03B 21/28 (2006.01) G03B 21/10 (2006.01) G03B 21/62 (2006.01) H04N 5/74 (2006.01)

Patent

CA 1192070

ABSTRACT OF THE DISCLOSURE A rear projection apparatus having a cabinet provided with a screen attaching portion, a rear projection screen attached to the screen attaching portion, an image projector for projecting an image onto the rear projecting screen from its rear side, and a convex lens disposed at the back side of the rear projection screen is disclosed. In this case, the optical center axis of the convex lens is shifted from its mechanical center and the convex lens is attached to the rear projection screen interchangeably, whereby the light axis of the image from said rear projection screen is deflected to a predetermined direction by changing an attaching direction of the convex lens against the screen attaching portion of the cabinet.

416135

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