Flat filament for an X-ray tube, and an X-ray tube
US-9202663-B2 · Dec 1, 2015 · US
X-ray tube
US2016365218A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2016365218-A1 |
| Application number | US-201615152992-A |
| Country | US |
| Kind code | A1 |
| Filing date | May 12, 2016 |
| Priority date | Jun 10, 2015 |
| Publication date | Dec 15, 2016 |
| Grant date | — |
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Abstract
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According to one embodiment, an X-ray tube includes a cathode including a filament, an anode target, and an envelope. The cathode includes a metal lead wire supporter which is exposed outside the envelope, which is configured a part of the envelope, and to which a lead wire as a power supplier to the filament is attached such that the lead wire passes both inside and outside of the envelope, and a metal filament supporter fixed on the lead wire supporter, being in contact with the lead wire supporter, and supporting the filament.
First claim
Opening claim text (preview).
What is claimed is: 1 . An X-ray tube comprising: a cathode including a filament which emits an electron beam; an anode target on which the electron beam is incident and from which X-rays are emitted; and an envelope which accommodates the cathode and the anode target, wherein the cathode includes a metal lead wire supporter which is exposed outside the envelope, which is configured a part of the envelope, and to which a lead wire as a power supplier to the filament is attached such that the lead wire passes both inside and outside of the envelope, and a metal filament supporter fixed on the lead wire supporter, being in contact with the lead wire supporter, and supporting the filament. 2 . The X-ray tube of claim 1 , wherein the cathode includes a metal focusing electrode which is fixed on the filament supporter to make a contact therewith and is configured to focus the electron beam emitted from the filament. 3 . The X-ray tube of claim 2 , wherein one of the lead wire supporter and the filament supporter is cylindrical and has an opening on a side surface thereof, a filament terminal fixed to the filament and the lead wire are inserted inside of said one of the lead wire supporter and the filament supporter, and the filament terminal and the lead wire are connected to each other to be opposed to the opening. 4 . The X-ray tube of claim 1 , wherein the filament supporter focuses the electron beam emitted from the filament. 5 . The X-ray tube of claim 4 , wherein one of the lead wire supporter and the filament supporter is cylindrical and has an opening on a side surface thereof, a filament terminal fixed to the filament and the lead wire are inserted inside of said one of the lead wire supporter and the filament supporter, and the filament terminal and the lead wire are connected to each other to be opposed to the opening. 6 . The X-ray tube of claim 1 , wherein the lead wire is supported by the lead wire supporter in an electrically insulated manner, and the filament is supported by the filament supporter in an electrically insulated manner. 7 . The X-ray tube of claim 6 , wherein one of the lead wire supporter and the filament supporter is cylindrical and has an opening on a side surface thereof, a filament terminal fixed to the filament and the lead wire are inserted inside of said one of the lead wire supporter and the filament supporter, and the filament terminal and the lead wire are connected to each other to be opposed to the opening. 8 . The X-ray tube of claim 1 , wherein one of the lead wire supporter and the filament supporter is cylindrical and has an opening on a side surface thereof, a filament terminal fixed to the filament and the lead wire are inserted inside of said one of the lead wire supporter and the filament supporter, and the filament terminal and the lead wire are connected to each other to be opposed to the opening.
Assignees
Inventors
Classifications
- H01J35/06Primary
Cathodes · CPC title
Anodes; Anti cathodes · CPC title
Arrangements for concentrating, focusing, or directing the cathode ray · CPC title
- H01J35/066Primary
Details of electron optical components, e.g. cathode cups · CPC title
Sealing means · CPC title
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Frequently asked questions
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- What does patent US2016365218A1 cover?
- According to one embodiment, an X-ray tube includes a cathode including a filament, an anode target, and an envelope. The cathode includes a metal lead wire supporter which is exposed outside the envelope, which is configured a part of the envelope, and to which a lead wire as a power supplier to the filament is attached such that the lead wire passes both inside and outside of the envelope, an…
- Who is the assignee on this patent?
- Toshiba Electron Tubes & Devic
- What technology area does this patent fall under?
- Primary CPC classification H01J35/06. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Thu Dec 15 2016 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).