| 摘要 |
A display device is provided for generating an image which is perceivable, by a viewer (M) of an object located in an object plane (O), as being superimposed on the object, said device comprising an image generating device ( 1 ) for generating the image in an image plane (B) and a superimposing unit ( 7 ), wherein the image generating device ( 1 ) and the superimposing unit ( 7 ) are mounted on a support device ( 12 ), which is placeable on the head of the viewer (M), and the image generating device ( 1 ) comprises a focusing unit ( 3 ) by which the distance from the image plane (B) to the support device ( 12 ) is changeable and which includes a lens ( 4 ) having a variable refractive index as well as a control unit ( 6 ) for adjusting the refractive index of the lens ( 4 ), wherein, when the support device ( 12 ) is placed on the head of the viewer (M), the superimposing unit ( 7 ) effects superposition of the generated image on the object for the viewer (M) and the control unit ( 6 ) adjusts the refractive index of the lens ( 4 ) such that the object plane (O) coincides with the image plane (B).
|
