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公开(公告)号：DE3364254D1
公开(公告)日：1986-07-31
申请号：DE3364254
申请日：1983-03-28
Applicant: PHILIPS NV
Inventor： VAN ESDONK JOHANNES , STOFFELS JACOBUS
Abstract: When during the manufacture of a dispenser cathode a cathode body is first manufactured which comprises scandium oxide, and the emissive material is subsequently provided in the cathode, it is possible to obtain a larger scandium oxide concentration in the cathode surface. This results in a longer life and smaller sensitivity to ion bombardment of the cathode compared with the scandium oxide-containing cathodes known so far.
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公开(公告)号：IT1177459B
公开(公告)日：1987-08-26
申请号：IT2413184
申请日：1984-12-19
Applicant: PHILIPS NV
Inventor： VAN ESDONK JOHANNES , HASKER JAN , STOFFELS JACOBUS
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公开(公告)号：IT8424131D0
公开(公告)日：1984-12-19
申请号：IT2413184
申请日：1984-12-19
Applicant: PHILIPS NV
Inventor： ESDONK JOHANNES VAN , HASKER JAN , STOFFELS JACOBUS
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Patent Agency Ranking
公开(公告)号：DE3764753D1
公开(公告)日：1990-10-11
申请号：DE3764753
申请日：1987-09-10
Applicant: PHILIPS NV
Inventor： VAN ESDONK JOHANNES , STOFFELS JACOBUS , PETERS JACOBUS MARIA PETERS
Abstract: The invention relates to a contact (9) for a semiconductor cathode consisting of one of the metals Ag, Au Cu (11) and one of the metals Ta, Ti, V (10). Such a contact does not exhibit any degradation when the cathode, after mounting in a vacuum tube, is heated several times to approximately 850 DEG C for cleaning purposes.
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公开(公告)号：DE3669787D1
公开(公告)日：1990-04-26
申请号：DE3669787
申请日：1986-04-03
Applicant: PHILIPS NV
Inventor： STOFFELS JACOBUS , SEVERIJNS ADRIANUS PETRUS
Abstract: A predetermined number of optical fiber parts (27) is provided on a rectangular frame (1), the fibre parts extending parallel to each other along a straight line between two opposite first sides (3) of the frame. These first sides (3) comprise comb-shaped fibre guides (5) with teeth (13), between which the fibre parts (27) are guided so that the fibre guides determine a first relative distance between the fibre parts. The first sides (3) are pivotably connected to the two second sides (7) of the frame (1), which is then deformed to a parallelogram until the portions of the fibre parts (27) located inside the frame have a predetermined second relative distance. A permanent connection between the fibre parts (27) is established so that a ribbon of fibre parts is obtained. A number of such ribbons can be stacked with the interposition of strip-shaped spacers (29) to form a bundle.
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公开(公告)号：GB2151842B
公开(公告)日：1987-08-26
申请号：GB8431843
申请日：1984-12-17
Applicant: PHILIPS NV
Inventor： VAN ESDONK JOHANNES , HASKER JAN , STOFFELS JACOBUS
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公开(公告)号：CA1212715A
公开(公告)日：1986-10-14
申请号：CA424984
申请日：1983-03-31
Applicant: PHILIPS NV
Inventor： VAN ESDONK JOHANNES , STOFFELS JACOBUS
Abstract: Methods of manufacturing a dispenser cathode and dispenser cathode manufactured according to these methods. When during the manufacture of a dispenser cathode a cathode body is first manufactured which comprises scandium oxide, and the emissive material is subsequently provided in the cathode, it is possible to obtain a larger scandium oxide concentration in the cathode surface. This results in a longer life and smaller sensitivity to ion bombardment of the cathode compared with the scandium oxide-containing cathodes known so far.
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公开(公告)号：FR2557356A1
公开(公告)日：1985-06-28
申请号：FR8419654
申请日：1984-12-21
Applicant: PHILIPS NV
Inventor： ESDONK JOHANNES VAN , HASKER JAN , STOFFELS JACOBUS
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