公开(公告)号：US20230236440A1

公开(公告)日：2023-07-27

申请号：US18087397

申请日：2023-01-13

Applicant: Khalifa University of Science and Technology

Inventor： Haider BUTT ,  Fahad ALAM

IPC: G02C7/10

CPC classification number: G02C7/104

Abstract: An ophthalmic lens configured to treat color vision deficiency is presented herein. The lens includes a tinted region containing either or both of a first dye that is configured to absorb at least 50% of incident light in a spectral band between 480 nanometers to 500 nanometers and a second dye that is configured to absorb at least 50% of incident light in a spectral band between 550 nanometers to 580 nanometers. A method of manufacturing such a lens and a process of forming set of eyeglasses by an additive manufacturing process is also presented.

公开(公告)号：US20220357594A1

公开(公告)日：2022-11-10

申请号：US17499251

申请日：2021-10-12

Applicant: Khalifa University of Science and Technology

Inventor： Haider BUTT ,  Fahad ALAM

IPC: G02C7/04 ,  G02B1/12 ,  B29D11/00 ,  B33Y80/00

Abstract: A method of forming an ophthalmic contact lens using an additive manufacturing apparatus is presented herein. The method providing a first solution comprising HEMA, PEGDA, and a photoinitiator, forming a support structure on a planar print bed of the additive manufacturing apparatus by depositing a first plurality of layers of the first solution and curing the first plurality of layers, and forming an ophthalmic contact lens on the support structure by depositing a second plurality of layers of the first solution and curing the second plurality of layers. The second plurality of layers are arranged such that a disc of the ophthalmic contact lens is oriented generally perpendicular to the planar print bed of the additive manufacturing apparatus.