WINDOW MATERIAL FOR OPTICAL ELEMENT, LID FOR OPTICAL ELEMENT PACKAGE, OPTICAL ELEMENT PACKAGE, AND OPTICAL DEVICE

    公开(公告)号:US20230148016A1

    公开(公告)日:2023-05-11

    申请号:US17969298

    申请日:2022-10-19

    IPC分类号: G02B1/02 H01L33/48

    CPC分类号: G02B1/02 H01L33/483

    摘要: The window material for an optical element of the present invention is formed of synthetic quartz glass that is likely to be subjected to shape processing, can be manufactured at low cost, and has a flat plate shape. Even if the window material for an optical element has a flat plate shape, for example, in a window material of a UV-LED such as a UVC-LED sealed with a surface mount package (SMD PKG), light emitted from the optical element, in particular, light having a light distribution angle can be efficiently collected when passing through the window material, and light collection equal to that of a window material having a lens shape such as a conventional convex shape can be achieved. Furthermore, light distribution without irradiation unevenness such as Lambertian reflection can also be achieved.

    METHOD FOR MACHINING SYNTHETIC QUARTZ GLASS SUBSTRATE

    公开(公告)号:US20220126558A1

    公开(公告)日:2022-04-28

    申请号:US17494262

    申请日:2021-10-05

    IPC分类号: B32B38/00 B32B37/12

    摘要: A synthetic quartz glass substrate is machined by bringing a surface of the synthetic quartz glass substrate as the workpiece into contact with and superposing it on a surface of a protective member made of synthetic quartz glass to effect optical contact bonding of the workpiece and the protective member, and passing a cutting tool through the optical contact bonding surfaces. This machining process is able to effectively prevent the generation of microdefects at the cutting tool entry site and extraction site during a cutting operation. Moreover, a fixing agent is not used to join the workpiece and the protective member, and so productivity is high because there is no need for the application and later removal of a fixing agent.

    ADHESIVE COMPOSITION AND FILM-SHAPED SEALING MATERIAL

    公开(公告)号:US20240117226A1

    公开(公告)日:2024-04-11

    申请号:US18237950

    申请日:2023-08-25

    IPC分类号: C09J163/10 C09J11/06

    摘要: An adhesive composition, including: a reaction product (A) among a bifunctional epoxy resin represented by the formula (2), a tri- or more functional epoxy resin represented by the formula (3), and a saturated acid anhydride represented by the following general formula (4); a UV-sensitive reaction initiator (B); and a dilution solvent (C), wherein the component (A) is a compound represented by the formula (1), a ratio of a total mole of epoxy groups in the multi-functional epoxy resin to a mole of the saturated acid anhydride is 1.30 to 3.00, and a mole of the bifunctional epoxy resin relative to a total mole of the multi-functional epoxy resin is 0.001 to 0.15. This provides a highly reliable epoxy-resin-based adhesive composition and film-shaped sealing material having a low viscosity, curability at low temperature, and high adhesiveness, and retaining power generation performance of a perovskite solar cell before and after sealing.