Spectacle lens for a display device that can be fitted on the head of a user and generates an image

US9989768B2 · kind B2 · utility

Assignee

• tooz technologies GmbH · DE

Inventors

• Karsten Lindig · Erfurt, DE
• Hans-Juergen Dobschal · Kleinromstedt, DE

Key dates

• Filing date: Apr 16, 2015
• Grant date: Jun 5, 2018
• Expiry date: Apr 16, 2035

Classification

• Technology area (CPC G): Physics
• CPC primary: G02C2202/16
• WIPO field: Optics
• WIPO sector: Instruments

Abstract

A spectacle lens for a display device can be fitted on the head of a user and generate an image. The spectacle lens includes a front side and a rear side, a coupling-in section and a coupling-out section spaced apart from the coupling-in section, as well as a light guiding channel which is suitable for guiding light bundles of pixels of the generated image, which are coupled into the spectacle lens via the coupling-in section of the spectacle lens, in the spectacle lens to the coupling-out section, by which they are coupled out of the spectacle lens. The light guiding channel includes a first reflecting layer, which extends from the coupling-in section to the coupling-out section and on which the light bundles are reflected for guiding to the coupling-out section. The first reflecting layer includes at least one transparent gap.