| 摘要 |
Provided is an information display device in which light that represents information is reflected by a subject-of-projection member (6), and the information is displayed as a virtual image. The information display device is provided with a projection means (10), at least two image forming means (14, 16), and a focus adjusting means (40, S200, S360). The projection means projects the light that represents information. The image forming means are disposed on the path of light from the projection means to the subject-of-projection member, and the light projected from the projection means is projected onto the image forming means. At least one of the image forming means is disposed at a different distance from the projection means than the other image forming means. The focus adjusting means adjusts the focal length of one optical system (35, 86) that is disposed on the path of light from the projection means to each of the image forming means so that the light projected from the projection means comes into focus at each of the image forming means. The information which is formed as an image by each of the image forming means is reflected by the subject-of-projection member. |
