Patent ID: 6783247
Filing Date: 2004-08-31
Classification: G03B,H04N

Abstract:
An image projection system for displaying images to a user located in an observation zone, comprising:a projector adapted to output a projected image along an image beam path, the image path being directed towards the observation zone during use of the system; a reflective mirror positioned between the projector and the observation zone, the reflective mirror having an upward-facing reflection surface; a front projection screen having a downward-facing projection surface located in a plane above the projector, wherein the upward-facing reflection surface of the reflective mirror is positioned so that the image beam path of the projected image from the projector is reflected off of the upward-facing reflection surface and upward toward the downward-facing projection surface of the front projection screen during use of the system, and wherein the image beam path impinges upon and illuminates the downward-facing projection surface of the screen during use of the system; and a two-way mirror located adjacent to and at an angle relative to the projection surface such that when the image from the projector is displayed on the projection surface of the screen, the image displayed on the screen is reflected to the observation zone, and wherein the image beam path of the projected image does not cross through the two-way mirror as the projected image travels from the projector to the front projection screen during use of the system.