METHOD FOR MAKING EMBEDDED HYDROGEL CONTACT LENSES

    公开(公告)号:US20230382065A1

    公开(公告)日:2023-11-30

    申请号:US18322651

    申请日:2023-05-24

    申请人: Alcon Inc.

    IPC分类号: B29D11/00

    摘要: A method for producing embedded hydrogel contact lenses comprises at least the following steps: obtaining an insert made of a crosslinked polymeric material comprising repeating units of a free-radical photoinitiator; placing the insert in a female lens mold half; dosing an amount of a lens-forming composition to immerse the insert in the female lens mold half; closing tightly a male lens mold half onto the top of the female lens mold half halves to form a molding assembly; actinically curing both the lens-forming composition in the molding assembly to form an embedded hydrogel lens precursor which comprises a bulk hydrogel material formed the lens-forming composition and the insert that is embedded therein and covalently linked to the bulk hydrogel material.

    MONOLITHIC HIGH REFRACTIVE INDEX PHOTONIC DEVICES

    公开(公告)号:US20230373173A1

    公开(公告)日:2023-11-23

    申请号:US18364633

    申请日:2023-08-03

    IPC分类号: B29D11/00 G02B1/04 B29C33/62

    摘要: Fabricating a high refractive index photonic device includes disposing a polymerizable composition on a first surface of a first substrate and contacting the polymerizable composition with a first surface of a second substrate, thereby spreading the polymerizable composition on the first surface of the first substrate. The polymerizable composition is cured to yield a polymeric structure having a first surface in contact with the first surface of the first substrate, a second surface opposite the first surface of the polymeric structure and in contact with the first surface of the second substrate, and a selected residual layer thickness between the first surface of the polymeric structure and the second surface of the polymeric structure in the range of 10 μm to 1 cm. The polymeric structure is separated from the first substrate and the second substrate to yield a monolithic photonic device having a refractive index of at least 1.6.

    REPLICATION MATERIAL REMOVAL
    7.
    发明公开

    公开(公告)号:US20230258953A1

    公开(公告)日:2023-08-17

    申请号:US18011679

    申请日:2021-06-24

    IPC分类号: G02B27/42 B29D11/00

    摘要: A method includes pressing a face of a stamp into a first portion of a replication material disposed on a substrate, to cause the replication material to have a predetermined characteristic, exposing the first portion of the replication material to illumination, to modify the first portion of the replication material, and subsequently removing a second portion of the replication material that was not exposed to the illumination. An optical device includes a substrate, a portion of replication material disposed on a first surface of the substrate, the portion of replication material forming one or more diffractive optical elements, and a masking layer disposed on a second surface of the substrate, the second surface being opposite the first surface, in which a sidewall of the replication material has a straight profile, and in which the masking layer defines an aperture aligned with the portion of the replication material.

    PRODUCTION OF OPTICAL COMPONENTS
    8.
    发明申请

    公开(公告)号:US20190184655A1

    公开(公告)日:2019-06-20

    申请号:US16318879

    申请日:2017-07-18

    IPC分类号: B29D11/00

    摘要: A method of producing optical components includes providing an initial carrier including cutouts; carrying out a molding process to form transparent optical molded parts arranged in the cutouts of the initial carrier, wherein a molding compound is introduced into the cutouts of the initial carrier and the molding compound is molded and cured; and singulating the initial carrier including the optical molded parts so that separate optical components are formed that respectively include a carrier produced from the initial carrier and including a cutout, and an optical molded part arranged in the cutout.

    Optical device for modifying light distribution

    公开(公告)号:US20190003684A1

    公开(公告)日:2019-01-03

    申请号:US15744230

    申请日:2017-09-13

    申请人: LEDIL- OY

    摘要: An optical device for modifying a light distribution pattern of a light source is presented. The light source radiates first light beams to a first geometric quarter-space and second light beams to a second geometric quarter-space, where the first and second quarter-spaces are defined by mutually perpendicular geometric planes one of which constitutes a boundary between the first and second geometric quarter-spaces. The optical device may include a lens-section for modifying a light distribution pattern of the first light beams and a reflector surface for reflecting at least a part of the second light beams from the second geometric quarter-space to the first geometric quarter-space. The reflector surface is shaped to resemble a wedge that points towards the first geometric quarter-space so as to provide total internal reflection and to direct the reflected second light beams to sideward directions.