Sony Group Corporation
IMAGE DISPLAY APPARATUS AND PROJECTION OPTICAL SYSTEM

Abstract:

This image display apparatus includes a light source, an image generation unit, and a projection optical system. The image generation unit generates image light. The projection optical system includes a first lens system, a first reflection optical system, a second lens system, and a second reflection optical system. The first lens system refracts the image light. The first reflection optical system has two or more reflection surfaces that fold back and reflect the refracted image light. The second lens system refracts the image light reflected by the first reflection optical system. The second reflection optical system reflects the image light refracted by the second lens system toward a projection object. The first reflection optical system includes an optical component having a principal surface on which one reflection surface of the two or more reflection surfaces is configured. The principal surface includes a transmission surface that allows the image light to pass therethrough, the transmission surface being configured in a region having a shape rotationally asymmetric to the reflection surface with respect to an optical axis of the optical component and including the optical axis.