Spectacle lens and display device with such a spectacle lens

A spectacle lens for an image-generating display device that can be fitted on the head of a user and generate an image, comprising:

• a single lens element defining a curved front side and a curved rear side, and, when the single lens element is viewed from above, a coupling-in section in an edge area of the single lens element and a coupling-out section spaced apart therefrom,
• wherein a thickness dimension is defined as spanning between the curved front side and curved rear side,
• wherein the curved rear side has a curvature profile such that it corrects a vision defect of the user when looking through the single lens element,
• wherein the single lens element is configured to couple the generated image into the single lens element via the coupling-in section of the single lens element, and to guide the generated image in the single lens element by reflections at the front side and the rear side of the single lens element as far as the coupling-out section and to couple the generated image out of the single lens element via the coupling-out section to an exit pupil in which the user's eye is to be positioned for perceiving the coupled-out image,
• wherein the coupling-out section is located within a center area of the lens defined within an angle of 40 degrees of a center point of the single lens element as measured from the exit pupil,
• wherein, in order to reduce vignetting occurring when the generated image is guided via the coupling-in section through the single lens element as far as the coupling-out section, the thickness dimension in the edge area is larger in comparison to the thickness dimension elsewhere in the spectacle lens, and
• wherein the single lens element has a refractive power not equal to zero.