SYSTEMS AND METHODS FOR CONTACTLESS FORMATION OF TILTED OPTICAL WINDOWS FOR WAFER-LEVEL MICROELECTRONIC DEVICES

    公开(公告)号:US20240417303A1

    公开(公告)日:2024-12-19

    申请号:US18672638

    申请日:2024-05-23

    Abstract: Disclosed are various approaches to creating optical windows in glass covers. To create the glass cover with the optical window, a sheet of glass is reformed using a mold that includes a male portion having a first recess and a female portion having a second recess. The female portion of the mold mates with the male portion of the mold. The first recess is configured to form a first gas pocket and the second recess is configured to form a second gas pocket when the male and female portions of the mold are mated, where a cross sectional area of each of the first recess and the second recess is less than 15 square millimeters. A portion of the reformed glass corresponding to the optical window is positioned between the first gas pocket and the second gas pocket.

    LENS FORMING METHOD
    4.
    发明公开
    LENS FORMING METHOD 审中-公开

    公开(公告)号:US20240246849A1

    公开(公告)日:2024-07-25

    申请号:US18324188

    申请日:2023-05-26

    Inventor: Tao Liang

    Abstract: A lens forming method is provided, including: heating a blank mold with a pre-molding cavity until a glass preform in the pre-molding cavity is in a semi-molten state; applying a pressure to the blank mold, so that the glass preform is extruded to form a lens rough blank with a predetermined shape; cooling the blank mold and the lens rough blank, and separating the blank mold by depressurization, to transfer the lens rough blank to a molding cavity of a high-precision aspherical mold; heating the high-precision aspherical mold until the lens rough blank is softened to a semi-molten state; applying a pressure to the high-precision aspherical mold, so that the lens rough blank is extruded to form a lens molded part with an aspherical structure; and cooling the high-precision aspherical mold and the lens molded part, and separating the high-precision aspherical mold by depressurization, to remove the lens molded part.

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