A head mounted projection display includes a polarizing beam splitter stack that includes a waveplate. The polarizing beam splitter stack reduces optical losses and has a low forward extension. The polarizing beam splitter may be used at a 45 degree angle or at a non 45 degree angle relative to the line of view. A correction may be also be performed to the intensity of individual pixels to account for chromatic non-uniformity in the optical response of a retroreflector and other optical components.

Disclosed is a total reflection based compact near-eye display device with a large field of view. Light rays emitted by an image source (103) are transmitted by using a total reflection prism (101), and are finally subjected to image magnification by means of a near-eye refractive component (105), such that a near-eye display effect with a large field of view is achieved under the conditions of a compact volume.

A display apparatus includes a display element, a display optical system configured to guide light from a display surface of the display element to an observation side, and two optical elements. The display optical system includes a first and second half-transmissive reflective surface and a second half-transmissive reflective surface. The light from the display surface transmits through the second half-transmissive reflective surface, is reflected on the first half-transmissive reflective surface, is reflected on the second half-transmissive reflective surface, transmits through the first half-transmissive reflective surface, and is guided to the observation side. An absolute value of a curvature of the second half-transmissive reflective surface is larger than that of the first half-transmissive reflective surface. The display surface has a convex shape toward the observation side in at least one of two mutually orthogonal sections that include an optical axis of the display optical system.

A modified-Schmidt corrector lens including a first side having a curved surface configured to direct electromagnetic radiation, and a second side having a stepped surface including one or more stepped zones positioned to maintain a substantially constant thickness along a radius of the corrector lens.