US Patent 11175875 Eyeglass-mounted image display device and image system

Provided are an eyeglass-mounted image display device capable of adjusting the interval between, height of, and elevation/depression angle of viewers detachably attached to eyeglasses, and an image display system using the eyeglass-mounted image display device. The eyeglass-mounted image display device includes: viewers 7 displaying an image from an endoscope serving as an image output apparatus; and eyeglasses 1 to which the viewers 7 are detachably attached via an attaching member 8. The viewers 7 are disposed in front of lenses 3 of the eyeglasses 1, and the interval between, height of, and elevation/depression angle of the viewers 7 are adjustable with the attaching member 8.