| 主权项 |
1. An image display device comprising:
a substrate housing portion that stores a circuit substrate that outputs an image signal of an image to be displayed; an optical unit that is provided at one end of the substrate housing portion and that generates and projects an image as image display light based on the image signal output from the circuit substrate; and a combiner that is provided at one end of the optical unit and on which the image display light is projected, wherein the optical unit has: an optical unit main body that includes a light source and an image display element and is provided with a first body surface and a second body surface opposite to each other; and a projection unit that is attached to the optical unit main body, that is provided with an intermediate image screen that images an intermediate image, and that determines a projection direction, and wherein the projection unit is freely removed from or installed in the optical unit main body, and a direction of attachment is changeable such that the image display light from the projection unit is projected below the optical unit main body from a projection port provided in the projection unit, regardless of whether the first body surface or the second body surface faces downward, and the optical unit including the projection unit and the combiner are rotatable in an integral manner with respect to the substrate housing portion regardless of whether the first body surface or the second body surface faces downward, and wherein the optical unit projects the image display light based on the image signal in which a direction of an image is changed by 180 degrees depending on whether the optical unit is attached so that the first body surface faces downward or the second body surface faces downward. |
