An optical apparatus to be worn by a viewer and comprising a laser light source energisable to direct a modulated beam toward a scan mirror ; an objective lens in the path of the modulated beam directed toward the scan mirror, wherein the objective lens and the scan mirror define a curved focal surface for the modulated beam; pupil relay optics disposed to relay a first pupil (P1) at the scan mirror to a second pupil (P2) at an eye lens of the viewer, the pupil relay optics defining an optical path between the first and second pupils, the optical path comprising: (i) a curved mirror surface disposed to transmit substantially half of the light incident from the modulated beam and that has a first center of curvature optically concentric with the first pupil; and (ii) a first polarizer disposed in the optical path to receive light from the scan mirror and formed to reflect incident light of a first polarization toward the curved mirror surface and to transmit incident light of a second polarization, orthogonal to the first polarization, wherein the optical path defined by the pupil relay optics directs the modulated light beam twice to the first polarizer, and wherein the modulated light beam incident the second time on the first polarizer is collimated and directed toward the second pupil. a laser light source energisable to direct a modulated beam toward a scan mirror ; an objective lens in the path of the modulated beam directed toward the scan mirror, wherein the objective lens and the scan mirror define a curved focal surface for the modulated beam; pupil relay optics disposed to relay a first pupil (P1) at the scan mirror to a second pupil (P2) at an eye lens of the viewer, the pupil relay optics defining an optical path between the first and second pupils, the optical path comprising: (i) a curved mirror surface disposed to transmit substantially half of the light incident from the modulated beam and that has a first center of curvature optically concentric with the first pupil; and (ii) a first polarizer disposed in the optical path to receive light from the scan mirror and formed to reflect incident light of a first polarization toward the curved mirror surface and to transmit incident light of a second polarization, orthogonal to the first polarization, wherein the optical path defined by the pupil relay optics directs the modulated light beam twice to the first polarizer, and wherein the modulated light beam incident the second time on the first polarizer is collimated and directed toward the second pupil. (i) a curved mirror surface disposed to transmit substantially half of the light incident from the modulated beam and that has a first center of curvature optically concentric with the first pupil; and (ii) a first polarizer disposed in the optical path to receive light from the scan mirror and formed to reflect incident light of a first polarization toward the curved mirror surface and to transmit incident light of a second polarization, orthogonal to the first polarization, wherein the optical path defined by the pupil relay optics directs the modulated light beam twice to the first polarizer, and wherein the modulated light beam incident the second time on the first polarizer is collimated and directed toward the second pupil. <EOS>