Title:
線状ゲッタを備えた真空管
Document Type and Number:
Japanese Patent JPH11500859
Kind Code:
A
Abstract:
A vacuum tube is provided with a line-shaped getter, which includes a holder (2) with a longitudinal axis, which holder (2) contains a getter material (3) over at least a part of its length, said getter being provided with clamping means to clamp the holder (2). The vacuum tube includes aligning means for exerting a torque about the longitudinal axis of the holder (2), said torque being as small as possible for a preferred orientation of the holder (2) relative to the clamping means. The clamping means preferably includes two leaf springs (7, 7'), which are bent so as to be S-shaped and which are provided with apertures (9, 9', 9'') at locations where the leaf springs (7, 7') intersect, for passing the holder (2), and a member (6; 19) is provided on the holder (2) in a clamping manner and the clamping means are provided with an orientation surface (17, 17'; 18, 18'), which extends radially relative to the longitudinal axis of the holder (2). In this manner, during the activation of the getter, displacements of the holder (2) in a direction transverse to the longitudinal axis are precluded. Both constructions can be used independently and cause the position of the holder (2) to be more accurately defined relative to the other elements of the vacuum tube.
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Inventors:
ファン ラールホーヘン フランシスカス マルチナス ヘンリカス
ペーターズ コルネリス
ペーターズ コルネリス
Application Number:
JP51801097A
Publication Date:
January 19, 1999
Filing Date:
October 25, 1996
Export Citation:
Assignee:
フィリップス エレクトロニクス ネムローゼ フェンノートシャップ
International Classes:
H01J7/18; H01J29/94; H01J31/12; (IPC1-7): H01J7/18; H01J29/94; H01J31/12
Attorney, Agent or Firm:
沢田 雅男