Light-guide Optical Element (LOE)
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Light-guide Optical Element (LOE) comprises a flat, transparent optical substrate that incorporates a set of embedded partially reflecting facets. An optical image, generated by a microdisplay (e.g. LCD, LCoS or OLED), is coupled into the LOE substrate. Trapped by total internal reflection, the image components are guided along the LOE. The image is then expanded and coupled out by a set of partial reflectors for viewing by the user. The LOE provides the viewing experience of a large distant screen: an enlarged, distant image, with a large field-of-view (FoV).
