Invention Grant
US5384461A Process for the manufacture of a multipolar elongate-electrode lens or
mass filter
失效
用于制造多极细长电极透镜或质量过滤器的方法
- Patent Title: Process for the manufacture of a multipolar elongate-electrode lens or mass filter
- Patent Title (中): 用于制造多极细长电极透镜或质量过滤器的方法
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Application No.: US140195Application Date: 1994-02-03
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Publication No.: US5384461APublication Date: 1995-01-24
- Inventor: Joseph P. R. Jullien , Jonathan H. Batey , Robert Mellor
- Applicant: Joseph P. R. Jullien , Jonathan H. Batey , Robert Mellor
- Applicant Address: GB2 Ipswich
- Assignee: Fisons plc
- Current Assignee: Fisons plc
- Current Assignee Address: GB2 Ipswich
- Priority: GBX9110207 19910510
- Main IPC: H01J9/14
- IPC: H01J9/14 ; H01J3/18 ; H01J49/42
Abstract:
The method includes the steps of assembling one or more blanks (1) in supporting means (2, 3) so that the or each blank occupies at least the space to be occupied by elongate electrodes and, without disturbing the position of the blanks relative to said supporting means, removing material from all said blanks to generate said electrodes in position in said supporting means. Preferably the material is removed by an electrode-discharge machining (EDM) process, e.g. diesinking. The method avoids time-consuming alignment of preformed electrodes in said supporting means.
Public/Granted literature
- US4835551A Optical recorder with plural resolution recording Public/Granted day:1989-05-30
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