Spectacle lens and method for producing a spectacle lens

Patent metadata

Field	Value
Publication number	US-11633928-B2
Application number	US-202017021412-A
Country	US
Kind code	B2
Filing date	Sep 15, 2020
Priority date	Jul 19, 2016
Publication date	Apr 25, 2023
Grant date	Apr 25, 2023

Abstract

A spectacle lens, which is manufactured by additive manufacturing, includes interspersing first volume elements and second volume elements. The first and second volume elements are arranged on the grid points of a geometric grid to form a first sub-grid and a second sub-grid, respectively. The first sub-grid forms the first part of the spectacle lens having a dioptric effect for vision for a first object distance and the second sub-grid forms the second part of the spectacle lens having a dioptric effect for vision for a second object distance, which differs from the first object distance.

First claim

The invention claimed is:

1. A method for producing a spectacle lens, the method comprising:
arranging a plurality of first volume elements by additive manufacturing on grid points of a geometric grid to form a first partial grid, the plurality of first volume elements forming a first part of a spectacle lens having a dioptric power for vision at a first object distance;
arranging a plurality of second volume elements by additive manufacturing on the grid points of the geometric grid to form a second partial grid, the plurality of second volume elements forming a second part of the spectacle lens having the dioptric power for vision at a second object distance that differs from the first object distance; and
interspersing the plurality of first volume elements and the plurality of second volume elements during the additive manufacturing to arrange the first partial grid and the second partial grid penetrating each other, respectively.

2. The method as claimed in claim 1 , further comprising:
arranging the plurality of first volume elements and the plurality of second volume elements on a surface of a carrier during the additive manufacturing.

Assignees

• Zeiss Carl Vision Int Gmbh

Inventors

• Mappes Timo
• Hornauer Matthias
• Michels Georg
• Glöge Thomas

Classifications

• B29D11/00355

  with a refractive index gradient · CPC title

• B29D11/00028 Primary

  Bifocal lenses; Multifocal lenses · CPC title

• G02C7/06 Primary

  bifocal; multifocal {; progressive (G02C7/041 takes precedence)} · CPC title

• G02B3/10

  Bifocal lenses; Multifocal lenses · CPC title

• G02C7/022 Primary

  Ophthalmic lenses having special refractive features achieved by special materials or material structures (G02C7/049 takes precedence) · CPC title