| 摘要 |
The invention relates to an imaging optical unit for producing a virtual image. The imaging optical unit comprises at least one eyeglass lens (1) to be worn in front of the eye, which has an inner surface (3) to be directed toward the eye and an outer surface (5) to be directed away from the eye; a display device (13), which comprises an image generator (15) for displaying an initial image, wherein the image generator (15) is the starting point of an imaging beam path that produces the virtual image from the initial image; an incoupling device (29, 31, 33) for coupling the imaging beam path in between the inner surface (3) and the outer surface (5) of the eyeglass lens (1); and an outcoupling structure (7, 107, 207) present in the eyeglass lens (1) for coupling the imaging beam path out of the eyeglass lens (1) toward the eye. The incoupling device (29, 31, 33) couples the imaging beam path in between the inner surface (3) and the outer surface (5) of the eyeglass lens (1) in such a way that the imaging beam path is conducted to the outcoupling structure (7) by means of reflections between the inner surface (3) and the outer surface (5). The outcoupling structure (7) is composed, along a separating line (39), of two partial structures (41, 43), which extend at an angle β to each other and which couple beam paths (25, 27) incident from different directions out toward the eye, wherein the different directions of the incident beam paths (25, 27) are determined by the angle (β) between the partial structures (41, 43). There is a beam-splitting structure (21, 23) between the display device (7) and the region of the eyeglass lens (1) in which the first reflection occurs. The beam-splitting structure splits the imaging beam path extending from the image generator (15) into two imaging partial beam paths, which form the beam paths (25, 27) incident on the partial structures (41, 43) of the outcoupling structure from different directions. |
