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Abstract

A head mounted display for entering an image into the eye of a viewer along a viewing axis. The head mounted display has a light source for supplying unpolarized light to an optical path. Also provided is a first polarizer disposed in the optical path for rotating the unpolarized light to that of a first polarization. A second polarizer is also disposed in the optical path for blocking light of the first polarization from reaching the eye. A reflective light valve is disposed in the optical path for rotating the light of the first polarization to an image of a second polarization. Also provided is a concave mirror disposed in the optical path for focusing and reflecting the image of the second polarization. Lastly, a directing means is provided for directing the light of the first polarization to the reflective light valve, for directing the image of the second polarization to the concave mirror, and for directing the focused and reflected image from the concave mirror towards the second polarizer. The second polarizer then transmits the focused and reflected image towards the eye of the viewer along the viewing axis.

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First Claim