Patent ID: 11892366
Assignee: CARL ZEISS VISION INTERNATIONAL GMBH
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G  B  H | IPC B  G  H

Claim 16:
17. A method for producing at least one optical lens, wherein the producing of the at least one optical lens includes processing at least one lens blank by adjusting at least one optical parameter of the at least one spectacle lens, wherein the at least one optical parameter of the at least one spectacle lens is determined by a method for determining at least one optical parameter of at least one spectacle lens, the method for determining the at least one optical parameter comprising the following steps:
a) capturing at least one image picturing at least one spectacle lens by using at least one camera, wherein the at least one camera generates at least one signal related to a position of a focus of the at least one camera, wherein at least one focus of the camera is adjusted to at least one object in space in at least one first distance to the at least one optical lens and in at least one second distance to the at least one camera; and
b) determining at least one optical parameter of the at least one spectacle lens by processing the at least one image and by using the at least one signal related to the position of the focus of the at least one camera, wherein the at least one optical parameter of at least one optical lens is determined by processing the at least one image by further capturing the at least one object in space in the at least one first distance to the at least one optical lens and in the at least one second distance to the at least one camera,
wherein the at least one optical parameter of the at least one spectacle lens is determined by using at least one known geometric distortion in the at least one image by using the at least one camera, wherein at least one observed geometric distortion in the at least one image is related to the at least one optical parameter of the at least one spectacle lens by applying a known relationship.