Near-eye display device with relay optical prism and optical combiner

Abstract

Disclosed is a near-eye display device including an image generating device, an optical prism element and a partial reflective optical element. The optical prism element is a relay optical element arranged on the transmission path of the image light from the image generating device to guide the image light. The optical prism element includes a first refractive surface, a first reflective surface, a second reflective surface, a plane mirror and a second refractive surface that guide the image light in sequence. The surfaces are eccentric to each other and form an interior filled with a medium having a refractive index greater than 1. The partial reflective optical element is arranged on the transmission path of the image light from the optical prism element. The partial reflective optical element is an optical combiner adapted to guide the image light and external ambient light toward an exit pupil.