公开(公告)号：US20210055645A1

公开(公告)日：2021-02-25

申请号：US16978472

申请日：2019-03-11

Applicant: SONY CORPORATION

Inventor： Jun NISHIKAWA ,  Naoko MATSUBARA ,  Tatsushi NASHIDA ,  Yosuke SHIMIZU

IPC: G03B21/28 ,  G02B17/08 ,  G03B21/56

Abstract: An image display apparatus according to an aspect of the present technology includes a light source, an image generator, and a projection optical system. The image generator modulates light emitted from the light source and generates image light. The projection optical system includes a lens system and a concave reflective surface. The lens system is configured on a basis of a reference axis at a position on which the generated image light is incident, and has a positive refracting power as a whole. The concave reflective surface is configured on a basis of the reference axis, and reflects the image light emitted from the lens system toward a projection target. In addition, the concave reflective surface reflects at least one or more light beams included in the image light incident on the concave reflective surface, toward a direction that intersects with a direction along the reference axis at an angle of 80 degrees or more.