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公开(公告)号：US20170250048A1
公开(公告)日：2017-08-31
申请号：US15442408
申请日：2017-02-24
Applicant: California Institute of Technology
Inventor： Axel SCHERER , William M. JONES , Danil M. LUKIN , Sameer WALAVALKAR , Chieh-feng CHANG
CPC classification number: H01J19/24 , H01J9/025 , H01J21/02 , H01J21/105 , H01J2209/0223
Abstract: Nanoscale field-emission devices are presented, wherein the devices include at least a pair of electrodes separated by a gap through which field emission of electrons from one electrode to the other occurs. The gap is dimensioned such that only a low voltage is required to induce field emission. As a result, the emitted electrons energy that is below the ionization potential of the gas or gasses that reside within the gap. In some embodiments, the gap is small enough that the distance between the electrodes is shorter than the mean-free path of electrons in air at atmospheric pressure. As a result, the field-emission devices do not require a vacuum environment for operation.
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公开(公告)号：US5739637A
公开(公告)日：1998-04-14
申请号：US535795
申请日：1995-09-28
Applicant: Gordon E. Boettcher
Inventor： Gordon E. Boettcher
Abstract: A cold cathode vacuum discharge tube, and method for making same, with an interior surface of the trigger probe coated with carbon deposited by carbon vapor deposition (CVD) or diamond-like carbon (DLC) deposition. Preferably a solid graphite insert is employed in the probe-cathode structure in place of an aluminum bushing employed in the prior art. The CVD or DLC probe face is laser scribed to allow resistance trimming to match available trigger voltage signals and to reduce electrical aging.
Abstract translation: 冷阴极真空放电管及其制造方法，其中触发式探针的内表面涂覆有通过碳气沉积（CVD）或类金刚石碳（DLC）沉积沉积的碳。 优选地，在探针 - 阴极结构中使用固体石墨插入件代替现有技术中使用的铝衬套。 CVD或DLC探针面被激光划线以允许电阻调整以匹配可用的触发电压信号并且减少电老化。
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公开(公告)号：US3562576A
公开(公告)日：1971-02-09
申请号：US3562576D
申请日：1968-03-12
Applicant: PATELHOLD PATENTVERWERTUNG
Inventor： RUSTERHOLZ ALEXANDER
Abstract: In a high-vacuum electron tube, an elongated cylindrical control electrode is surrounded by an anode electrode including a plurality of segmental elongated partial anode surfaces extending parallel to and concentric with the axis of said control electrode and a plurality of incandescent cathode wires are disposed also parallel to said axis and each within the space intervening between adjacent anode surfaces. A magnetic field extending in a direction parallel to said axis within the space enclosed by said control electrode and said anode surfaces acts to deflect the electron streams emitted by said cathodes towards the adjacent anode surfaces and to thereby reduce the number of electrons reaching the control electrode. This in turn reduces the power necessary to drive the tube, in particular for tubes operated at a positive control potential (class-C operation). In order to achieve a desired amplification factor of the tube, individual shielding means interposed between each of the cathodes and the adjoining anode surfaces project into the space between the latter and the control electrode to an extent such as to cause, with the current flow through the tube being equal to zero, the electric field strength at said cathodes resulting from unity voltage upon the control electrode to be a predetermined multiple of the electric field strength at said cathodes resulting from unit voltage upon the anode, respectively.
D R A W I N G-
公开(公告)号：US3041494A
公开(公告)日：1962-06-26
申请号：US80184659
申请日：1959-03-25
Applicant: RCA CORP
Inventor： LOUGH MERLIN E , CURRY DEAN L
IPC: H01J21/02
CPC classification number: H01J21/02
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公开(公告)号：US2965791A
公开(公告)日：1960-12-20
申请号：US43019654
申请日：1954-05-17
Applicant: BOMAC LAB INC
Inventor： BRIGGS RICHARD S , CARTER JR GEORGE E
IPC: H01J21/02
CPC classification number: H01J21/02
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Patent Agency Ranking
公开(公告)号：US2937305A
公开(公告)日：1960-05-17
申请号：US74483158
申请日：1958-06-26
Applicant: RCA CORP
Inventor： DE BACKER LUCIEN P A
IPC: H01J21/02
CPC classification number: H01J21/02
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公开(公告)号：US2905852A
公开(公告)日：1959-09-22
申请号：US43680254
申请日：1954-06-15
Applicant: BELL TELEPHONE LABOR INC
Inventor： ROBERTSON GEORGE H
IPC: H01J21/02
CPC classification number: H01J21/02
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公开(公告)号：US2877381A
公开(公告)日：1959-03-10
申请号：US49829555
申请日：1955-03-31
Applicant: BELLETT GEORGE R
Inventor： BELLETT GEORGE R
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公开(公告)号：US2860273A
公开(公告)日：1958-11-11
申请号：US55663655
申请日：1955-12-30
Applicant: MOTOROLA INC
Inventor： O'FALLON RICHARD G
IPC: H01J21/02
CPC classification number: H01J21/02
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