| 摘要 |
An image display apparatus includes an image projection unit (210) that projects image display light, an intermediate image forming unit (360) that forms a real image based on the image display light projected from the image projection unit (210), and a projection mirror (400) that reflects the image display light, which has passed through the intermediate image forming unit (360), toward the surface for presenting a virtual image. The intermediate image forming unit (360) has a first means that controls the direction of a chief ray of the image display light, which has passed through the intermediate image forming unit (360), and a second means that controls the light distribution angle of the chief ray. The first means may be a concave lens, and the second means may be a diffusing screen that diffuses the image display light, which has passed through the intermediate image forming unit. The diffusing screen includes a base member having a main surface and a plurality of diffusion beads provided on the main surface, and may be arranged in an orientation such that the image display light projected enters the main surface. |
