A display apparatus includes an image forming device configured to provide image light; a concave mirror configured to focus the image light provided by the image forming device; and a delivery optical system configured to deliver the image light provided by the image forming device to a field of view of an observer via the concave mirror, wherein the delivery optical system may include a beam splitter and at least one polarization control optical element, and wherein the at least one polarization control optical element is configured to block noise light incident to the delivery optical system from the field of view of the observer.