OPTICAL APPARATUS AND THREE-DIMENSIONAL MODELING APPARATUS

    公开(公告)号:US20240036344A1

    公开(公告)日:2024-02-01

    申请号:US18038634

    申请日:2021-11-19

    Abstract: In a light shielding unit, an introductory reflection surface is positioned in the vicinity of a focus position of a first-order diffracted beam on an optical axis of a first-order diffracted beam and in the vicinity of a zero-order diffracted beam aperture. The introductory reflection surface reflects the first-order diffracted beam in a direction deviating from an incident direction of the first-order diffracted beam and going away from an optical axis of a zero-order diffracted beam. A light guide path has an introduction port to which light from the introductory reflection surface is incident and guides light introduced from the introduction port. A circumference of the light guide path is surrounded by a light shielding member. A light absorbing part absorbs light guided while being diffused by the light guide path.

    Method for manufacturing a connecting part

    公开(公告)号:US11618084B2

    公开(公告)日:2023-04-04

    申请号:US16632219

    申请日:2018-07-18

    Inventor: Nicolas Breziat

    Abstract: A method for manufacturing a connecting part includes a first portion having a threaded end that is able to be screwed to the end of a first tubular component for connecting the connecting part to said first tubular component, the method comprising a step of producing, by an additive manufacturing method, a second portion of the connecting part juxtaposed with the first portion having a threaded end. Moreover, the first portion having a threaded end is obtained by reworking the first portion on a separate tubular component of the connecting part in order to be joined to the connecting part.

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