1. An image display device provided with transmitting means for providing image information to illumination light and for transmitting said light as an optical image signal and display means for receiving said optical image signal and for displaying an image based on said image information, said image display device comprising: projecting optical means composed of a reflecting part for reflecting said optical image signal, and a refracting optical part for correcting for a distortion if said reflecting part has said distortion and for projecting said optical image signal onto said reflecting part; wherein said display means receives said optical image signal through said projecting optical means.