LENSES, MULTI-LAYER PLATES, DISPLAY UNITS AND DISPLAY METHODS

Abstract

The invention relates to a lens assembly which is capable of achieving a reduction in the weight of a virtual reality (VR) headset and improving its clarity, and capable of reducing ghosting; the lens assembly comprises: a reflective polarizing element structured to reflect light, which is emitted forward from the display surface of a display element structured to display light, and passes through the polarizing element and the first λ / 4 element; an absorbing polarizing element arranged in front of the reflective polarizing element; a first lens element arranged on the optical path between the display element and the reflective polarizing element; a second lens element arranged in front of the absorbing polarizing element; One half of the mirror is positioned between the display element and the first lens element; the other half of the mirror has a structure that transmits light emitted from the display element and reflects light reflected by a polarizing element of the reflective type towards a polarizing element of the reflective type;And the second λ / 4 element is arranged on the optical path between one half-mirror and the reflective polarizing element, in which the second λ / 4 element and the first lens are integrated together, and in which the reflective polarizing element, the absorbing polarizing element, and the second lens are integrated together.