Electron tube comprising a focusing electrode part having a light passage portion and an electron passage portion
US-11118969-B2 · Sep 14, 2021 · US
Phototube
US11961725B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11961725-B2 |
| Application number | US-202118026364-A |
| Country | US |
| Kind code | B2 |
| Filing date | Sep 3, 2021 |
| Priority date | Oct 6, 2020 |
| Publication date | Apr 16, 2024 |
| Grant date | Apr 16, 2024 |
How to read this patent
A practical reading order for non-experts. Skip the full description unless you need deep technical detail.
- Title
What the patent document calls the invention.
- Abstract
A short plain-language summary of the technical disclosure.
- Assignees and inventors
Who owns or filed the patent and who is credited as inventor.
- Key dates
Filing, priority, publication, and grant dates set the timeline.
- First independent claim
The legal scope of protection — read this for what is actually claimed.
- CPC / IPC classifications
Technology tags used to group this patent with similar filings.
- Citations and related patents
Prior art links and similar publications in this corpus.
Abstract
Official abstract text for this publication.
A photoelectric tube includes a housing including a light transmitting portion, an electron emitting portion including a photoelectric surface disposed inside the housing, an electron capturing portion disposed between the light transmitting portion and the photoelectric surface inside the housing, and a conductive layer disposed on a light transmitting portion side of at least a part of the electron capturing portion to face the photoelectric surface inside the housing and configured to allow light to pass therethrough.
First claim
Opening claim text (preview).
The invention claimed is: 1. A photoelectric tube comprising: a housing including a light transmitting portion; an electron emitting portion including a photoelectric surface disposed inside the housing; an electron capturing portion disposed between the light transmitting portion and the photoelectric surface inside the housing; and a conductive layer disposed on the light transmitting portion side of at least a part of the electron capturing portion to face the photoelectric surface inside the housing, and configured to allow light to pass therethrough, wherein the electron capturing portion is a plate-shaped member, and is disposed to divide a region inside the housing when viewed from the light transmitting portion side. 2. The photoelectric tube according to claim 1 , wherein the conductive layer is disposed along the light transmitting portion to face the photoelectric surface inside the housing. 3. The photoelectric tube according to claim 1 , wherein: the housing further includes a main body having a recess; the light transmitting portion is attached to the main body to close an opening of the recess; the electron emitting portion and the electron capturing portion are supported by the main body; and the conductive layer is supported by the light transmitting portion. 4. The photoelectric tube according to claim 3 , wherein: the electron emitting portion is disposed on an inner surface of the recess; the electron capturing portion bridges over an opening edge of the recess; and the conductive layer is disposed on a surface of the light transmitting portion on the electron emitting portion side. 5. The photoelectric tube according to claim 3 , further comprising: a first conductive portion electrically connected to the electron capturing portion; and a second conductive portion electrically connected to the conductive layer, wherein a part of the first conductive portion, a part of the second conductive portion, and a part of the electron emitting portion are exposed to an outside on a surface of the main body on an opposite side from the light transmitting portion. 6. The photoelectric tube according to claim 3 , further comprising: a first conductive portion electrically connected to the electron capturing portion; a second conductive portion electrically connected to the conductive layer; and a wiring electrically connecting the electron emitting portion and the conductive layer to each other, wherein a part of the first conductive portion and a part of the second conductive portion are exposed to an outside on a surface of the main body on an opposite side from the light transmitting portion. 7. A photoelectric tube comprising: a housing including a light transmitting portion; an electron emitting portion including a photoelectric surface disposed inside the housing; an electron capturing portion disposed between the light transmitting portion and the photoelectric surface inside the housing; and a conductive layer disposed on the light transmitting portion side of at least a part of the electron capturing portion to face the photoelectric surface inside the housing, and configured to allow light to pass therethrough, wherein: the housing further includes a main body having a recess; the light transmitting portion is attached to the main body to close an opening of the recess; the electron emitting portion and the electron capturing portion are supported by the main body; and the conductive layer is supported by the light transmitting portion. 8. The photoelectric tube according to claim 7 , wherein the conductive layer is disposed along the light transmitting portion to face the photoelectric surface inside the housing. 9. The photoelectric tube according to claim 7 , wherein: the electron emitting portion is disposed on an inner surface of the recess; the electron capturing portion bridges over an opening edge of the recess; and the conductive layer is disposed on a surface of the light transmitting portion on the electron emitting portion side. 10. The photoelectric tube according to claim 7 , further comprising: a first conductive portion electrically connected to the electron capturing portion; and a second conductive portion electrically connected to the conductive layer, wherein a part of the first conductive portion, a part of the second conductive portion, and a part of the electron emitting portion are exposed to an outside on a surface of the main body on an opposite side from the light transmitting portion. 11. The photoelectric tube according to claim 7 , further comprising: a first conductive portion electrically connected to the electron capturing portion; a second conductive portion electrically connected to the conductive layer; and a wiring electrically connecting the electron emitting portion and the conductive layer to each other, wherein a part of the first conductive portion and a part of the second conductive portion are exposed to an outside on a surface of the main body on an opposite side from the light transmitting portion.
Assignees
Inventors
Classifications
Patent family
Related publications grouped by family.
External sources
Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US11961725B2 cover?
- A photoelectric tube includes a housing including a light transmitting portion, an electron emitting portion including a photoelectric surface disposed inside the housing, an electron capturing portion disposed between the light transmitting portion and the photoelectric surface inside the housing, and a conductive layer disposed on a light transmitting portion side of at least a part of the el…
- Who is the assignee on this patent?
- Hamamatsu Photonics Kk
- What technology area does this patent fall under?
- Primary CPC classification H01J40/06. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Apr 16 2024 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).