This paper describes a method to combine an angled transparent video display with a projection that will reflect off an angled beam splitter to produce an effectively larger field of view. The transparent display is angled at forty-five degrees. The beam splitter glass is also angled at forty-five degrees and is attached to the transparent video display via a transparent material plate. An overhead video display will project its projection onto the beam splitter glass after being focused on by a convex lens. This focused projection will reflect off the beam splitter glass and will be projected towards the user. In this configuration, the user of this head-mounted device will be able to experience a central focused field of view and the perception of the surrounding peripheral field of view.
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abeysekera, punarjeewa, "Augmented Reality HMD with a Transparent Video Display and a Beam splitter Reflected Projection", Technical Disclosure Commons, (September 23, 2021)