Method for producing conformal visor with integrated ophthalmic lenses and corresponding visor

Patent metadata

Field	Value
Publication number	US-11744314-B2
Application number	US-201816644670-A
Country	US
Kind code	B2
Filing date	Sep 5, 2018
Priority date	Sep 6, 2017
Publication date	Sep 5, 2023
Grant date	Sep 5, 2023

Abstract

The present invention refers to methods for producing a conformal visor ( 1 b ) with at least one integrated ophthalmic lens ( 2, 2 a, 2 b ), wherein the at least one ophthalmic lens ( 2, 2 a, 2 b ) is built up on the planar visor ( 1 a ) from layers of printing ink in an additive manufacturing scheme, wherein the layers are obtained through a targeted placement of droplets of printing ink at least partially side by side. The present invention further relates to a corresponding conformal visor ( 1 b ) with at least one integrated ophthalmic lens ( 2, 2 a, 2 b ).

First claim

The invention claimed is:

1. A method for producing a conformal visor with at least one integrated ophthalmic lens through three-dimensional printing, the method comprising:
printing a planar visor based on a first printing ink;
printing at least one ophthalmic lens on the planar visor based on a second ink; and
bending the planar visor and the at least one ophthalmic lens into a curved shape to form the conformal visor.

2. The method according to claim 1 , wherein a printed, planar shape of the at least one ophthalmic lens is determined taking into account a final, conformal shape of the at least one ophthalmic lens obtained through bending.

3. The method according to claim 1 , wherein the planar visor comprising the at least one integrated ophthalmic lens is made conformal through uniaxial bending, along an axis that upon wearing the visor is parallel to a longitudinal axis of the wearer.

4. The method according to claim 1 , wherein the planar visor comprising the at least one integrated ophthalmic lens is biaxially bent.

5. The method according to claim 1 , wherein after the planar visor comprising the at least one integrated ophthalmic lens is bent, the visor in the bent state is fixated using external tension.

6. The method according to claim 1 , wherein printing the at least one ophthalmic lens comprises:
printing a first lens at a first zone and a second lens at a second zone on the planar visor using different printing inks, wherein the first zone and the second zone on the planar visor are spatially separated.

7. The method according to claim 1 , further comprising:
prior to printing the at least one ophthalmic lens, disposing an electronic component on the planar visor,
wherein printing the at least one ophthalmic lens comprises printing the at least one ophthalmic lens on the planar visor and the electronic component, and
wherein bending the planar visor comprises bending the planar visor comprising the electronic component and bending the at least one ophthalmic lens into the curved shape to form the conformal visor.

Assignees

• Meta Platforms Tech Llc

Inventors

• Oelbrandt Leo
• Dürsteler Juan Carlos

Classifications

• A42B3/225 Primary

  with full face protection, e.g. for industrial safety applications · CPC title

• B29D11/00432

  Auxiliary operations, e.g. machines for filling the moulds (B29D11/00125 takes precedence) · CPC title

• B33Y80/00 Primary

  Products made by additive manufacturing · CPC title

• B29C64/112

  using individual droplets, e.g. from jetting heads · CPC title

• B29L2011/0016

  Lenses · CPC title