| 摘要 |
To provide an image display device in which provision of a mechanical mechanism is not required for reducing an effect of a speckle noise that is generated when a coherent light is used as a light source and a noise can be suppressed. An image display device (1) changes a phase of a light emitted from a light source device (a laser light source device (10) including laser light sources (10a to 10c) for each of R, G ,and B colors is shown as a sample) at high speed by a phase change unit including an electro-optical crystal (phase change units (12a to 12c) corresponding to each laser are shown as a sample). Therefore, because an interference pattern on a screen (16) changes at high speed and it is averaged by the human eye, the speckle noise can be reduced. |
