| 摘要 |
[Problem]It is an object of the invention to provide a head mount type image display system that, albeit having a see-around and a see-through function, is small size and low weight, makes sure a large field of outside view and low power consumption with high-luminance electronic images, and is easy to use. [Means for Solving the Problem] A head mount type image display system 1 at least comprises a display device, an eyepiece optical system, an eyepiece window, an eyepiece window holder 2 , a casing and a supporter 10 for fixing all these components onto a user's head. The casing covers the display device, the eyepiece window holder 2 holds the eyepiece window within a user's field of view, the eyepiece optical system forms a virtual image of an image displayed on the display device, the eyepiece window allows a light beam for forming the virtual image to be directed to a user's eye and leave it, and a member that forms the eyepiece window holder is such that, in a range of 10 mm or greater from the eyepiece window toward a base, a width of projection section in a user's visual axis direction is 4 mm or less except some projection, and has a see-around mechanism.
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