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1.
公开(公告)号:US20200251324A1
公开(公告)日:2020-08-06
申请号:US16850058
申请日:2020-04-16
发明人: Sung-Jin Park , Cyrus M. Herring , James Gary Eden
IPC分类号: H01J61/30 , H01J11/18 , H01J11/38 , H01J65/04 , H01J11/36 , H01J11/12 , H01J9/24 , H01J61/42 , H01J61/12 , H01J61/02 , H01J9/39 , F02M25/12 , A61L2/26 , H01J61/16 , H01J9/26 , C02F1/32 , A61L2/10
摘要: A product having at least one plasma lamp that includes plates that are approximately parallel, with at least one array of microcavities formed in a surface of at least one plate. When desirable, the plates are separated a fixed distance by spacers with at least one spacer being placed near the plate's edge to form a hermetic seal therewith. A gas makes contact with the microcavity array. Electrodes capable of delivering a time-varying voltage are located such that the application of the time-varying voltage interacts with the gas to form a glow discharge plasma in the microcavities and the fixed volume between the plates. The glow discharge plasma efficiently and uniformly emits radiation that is predominantly in the UV/VUV spectral range with at least a portion of the radiation being emitted from the plasma lamp.
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2.
公开(公告)号:US20240063012A1
公开(公告)日:2024-02-22
申请号:US18236568
申请日:2023-08-22
发明人: Sehyun Park , Sung-Jin Park , Andrey Mironov , James Gary Eden
摘要: A plasma lamp is provided that employs excitation transfer between two atomic or molecular species so as to preferentially produce light at a specific atomic or molecular emission wavelength. The lamp includes a lamp body. The lamp body includes a top portion, a middle portion having an internal hollow space filled with an energy-donor chemical gas and an energy-acceptor chemical element, and a bottom portion. The lamp body further includes an array of a plurality of cavities connected to the internal hollow space. The internal hollow space and the array of the plurality of cavities are spaced apart from outer surfaces of the lamp body. The plasma lamp is configured to excite the energy-donor chemical gas by an ignition of a low-temperature plasma within the internal hollow space and the array of the plurality of cavities to cause an excitation transfer from the excited energy-donor chemical gas to the energy-acceptor chemical element, thereby emitting radiation having a wavelength of about 194 nm when mercury (Hg) is the energy-acceptor chemical element and helium (He) serves as the donor. Other wavelengths in the ultraviolet (UV) and vacuum ultraviolet (VUV) spectral regions are generated when other donor and acceptor atoms or molecules are employed. These lamps are well-suited as optical drivers for atomic clocks (such as the 40.5 GHz Hg ion clock), photochemical processing of materials, disinfection of water, air, and surfaces, as well as other applications requiring UV or VUV light.
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3.
公开(公告)号:US11004673B2
公开(公告)日:2021-05-11
申请号:US16850058
申请日:2020-04-16
发明人: Sung-Jin Park , Cyrus M. Herring , James Gary Eden
IPC分类号: H01J61/30 , A61L2/10 , C02F1/32 , H01J9/26 , H01J61/16 , H01J9/24 , H01J11/12 , H01J11/36 , H01J65/04 , H01J11/38 , H01J11/18 , A61L2/26 , F02M25/12 , H01J9/39 , H01J61/02 , H01J61/12 , H01J61/42
摘要: A product having at least one plasma lamp that includes plates that are approximately parallel, with at least one array of microcavities formed in a surface of at least one plate. When desirable, the plates are separated a fixed distance by spacers with at least one spacer being placed near the plate's edge to form a hermetic seal therewith. A gas makes contact with the microcavity array. Electrodes capable of delivering a time-varying voltage are located such that the application of the time-varying voltage interacts with the gas to form a glow discharge plasma in the microcavities and the fixed volume between the plates. The glow discharge plasma efficiently and uniformly emits radiation that is predominantly in the UV/VUV spectral range with at least a portion of the radiation being emitted from the plasma lamp.
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4.
公开(公告)号:US20190214244A1
公开(公告)日:2019-07-11
申请号:US16312540
申请日:2016-06-27
发明人: Sung-Jin Park , Cyrus M. Herring , James Gary Eden
IPC分类号: H01J61/30 , H01J61/02 , H01J61/16 , H01J61/12 , H01J9/26 , H01J61/42 , H01J9/39 , A61L2/26 , A61L2/10 , C02F1/32 , F02M25/12
摘要: A plasma lamp includes plates that are approximately parallel, with at least one array of microcavities formed in a surface of at least one plate. When desirable, the plates are separated a fixed distance by spacers with at least one spacer being placed near the plate's edge to form a hermetic seal therewith. A gas makes contact with the microcavity array. Electrodes capable of delivering a time-varying voltage are located on the surface of each plate. At least one electrode is located on an exterior surface of at least one interior plate. Optionally, protective windows may be placed over the electrodes. The application of the time-varying voltage interacts with the gas to form a glow discharge plasma in the microcavities and the fixed volume between the plates (when present). The glow discharge plasma efficiently and uniformly emits UV/VUV radiation over the entire surface of the lamp.
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5.
公开(公告)号:US10658170B2
公开(公告)日:2020-05-19
申请号:US16312540
申请日:2016-06-27
发明人: Sung-Jin Park , Cyrus M. Herring , James Gary Eden
IPC分类号: H01J61/30 , A61L2/10 , C02F1/32 , H01J9/26 , H01J61/16 , H01J9/24 , H01J11/12 , H01J11/36 , H01J65/04 , H01J11/38 , H01J11/18 , A61L2/26 , F02M25/12 , H01J9/39 , H01J61/02 , H01J61/12 , H01J61/42
摘要: A plasma lamp includes plates that are approximately parallel, with at least one array of microcavities formed in a surface of at least one plate. When desirable, the plates are separated a fixed distance by spacers with at least one spacer being placed near the plate's edge to form a hermetic seal therewith. A gas makes contact with the microcavity array. Electrodes capable of delivering a time-varying voltage are located on the surface of each plate. At least one electrode is located on an exterior surface of at least one interior plate. Optionally, protective windows may be placed over the electrodes. The application of the time-varying voltage interacts with the gas to form a glow discharge plasma in the microcavities and the fixed volume between the plates (when present). The glow discharge plasma efficiently and uniformly emits UV/VUV radiation over the entire surface of the lamp.
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