Eyeglass lens for a display device, which display device can be placed on the head of a user and generates an image, and display device having such an eyeglass lens

Abstract

The invention relates to an eyeglass lens for a display device (1), which display device can be placed on the head of a user and generates an image, said eyeglass lens comprising an eyeglass lens body (7), which has a front side (8) and a back side (9), wherein the front side (8) and / or the back side (9) is curved and the eyeglass lens body (7) has at least one first and one second partial body (35, 36), the boundary surfaces (38, 39) of which facing each other are in direct contact, and comprising, as viewed in a top view of the eyeglass lens (3, 4), a coupling-in section (17) in an edge region (12) of the eyeglass lens (3, 4) and a coupling-out section (16) in a center region (13) of the eyeglass lens (3, 4), wherein the eyeglass lens (3, 4) is suitable for conducting light bundles (24) of pixels of the generated image, which light bundles are coupled into the eyeglass lens (3, 4) via the coupling-in section of the eyeglass lens, in the eyeglass lens (3, 4) to the coupling-out section (16) and for coupling said light bundles out of the eyeglass lens (3, 4) via the coupling-out section (16), wherein a flat first reflection surface (18, 31) and a flat second reflection surface (19, 32) spaced apart from the first reflection surface (18, 31) are provided in the eyeglass lens body (7), which reflection surfaces each extend in a direction from the coupling-in section (17) to the coupling-out section (16) and are each spaced apart from the front side (8) and the back side (9) of the eyeglass lens body (7), wherein the light bundles (24) are guided in the direction from the coupling-in section (17) to the coupling-out section (16) by means of reflections on the two reflection surfaces (18, 31; 19, 32), and wherein at least one of the first and second reflection surfaces (18, 31; 19, 32) is provided in the first or second partial body (35, 36) and is offset from the boundary surface (38, 39) of the corresponding partial body (35, 36) in the direction from the first to the second partial body (35, 36).

Description

technical field [0001] The present invention relates to a spectacle lens of a display device capable of being mounted on a user's head and generating an image, and a display device provided with the spectacle lens. Background technique [0002] Viewing an ophthalmic lens in plan view, such an ophthalmic lens generally comprises an incoupling section in the peripheral region of the ophthalmic lens and an outcoupling section in the central region of the ophthalmic lens, wherein the ophthalmic lens is suitable for The light beams of the pixels of the generated image are guided, the light beams are coupled into the spectacle lens via the incoupling section of the spectacle lens, are guided in the spectacle lens to the outcoupling section, and are routed via the outcoupling section They are coupled out of the spectacle lens. For guidance between the incoupling section and the outcoupling section, total internal reflection at the front and back side of the spectacle lens is often...

AI Technical Summary

Problems solved by technology

However, this is extremely complicated since, for each differently curved front and / or back side, the necessary corrections would have to be calculated and the corresponding ophthalmic lens produced individually

This will lead to very high costs and very high logistics costs

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