US3760216A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Anodic film for electron multiplication
Assignee: United States Department of the Army
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Filing: 1972-01-25
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Granted: 1973-09-18
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Expires: 1992-01-25
Abstract
Abstract A plurality of electron multipliers which are basically similar in construction but have different specific characteristics. These characteristics include a solid or porous electron producer and/or preamplifier on one side of a microchannel plate with a separately prepared glass substrate having a transparent metallic oxide layer, a phosphor layer, and a transparent cathode, singly or in combination on one side of the glass substrate. The microchannel plate and glass substrate are held together mechanically with the electron producer or preamplifier and the glass substrate on the outermost sides. The invention described herein may be manufactured and used by or for the Government of the United States of America for governmental purposes without the payment to us of any royalties thereon.
Inventors
- 👤 H Lasser
- 👤 B Almaula
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 18:33
CPC Classifications
H; H01; H01J; H01J43/00; H01J43/04; H01J43/06; H01J43/18; H01J43/24; H01J43/246; H01J31/00; H01J31/08; H01J31/50; H01J31/506; H01J31/507
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
49 words
An anodic film as set forth in claim 1 wherein said thin plate of partially conductive material is aluminum oxide that is doped with tungsten to provide replenishing electrons removed from the walls of said microscopic channels by secondary emission and wherein said first and second electrons are aluminum.
Claim 2
Dependent Claim
17 words
An anodic film as set forth in claim 2 wherein said layer of luminous material is phosphor.
Claim 3
Dependent Claim
17 words
An anodic film as set forth in claim 3 wherein said transparent metallic conductor is tin oxide.
Claim 4
Dependent Claim
17 words
An anodic film as set forth in claim 3 wherein said transparent metallic conductor is indium oxide.
Claim 5
Dependent Claim
93 words
A direct view image intensifier anodic film for electron multiplication comprising: a thin plate of partially conductive material containing a plurality of microscopic channels therethrough and having a first electrode on one side and a second electrode on the other side thereof; a layer of luminous material contiguous with said second electrode; a transparent metallic conductor contiguous with said layer of luminous material; a glass substrate contiguous with said transparent metallic conductor; and a voltage supply connected between said first and second electrodes for providing electron accelration and multiplication through said small channels.
Claim 6
Dependent Claim
21 words
A direct view image intensifier anodic film as set forth in claim 6 wherein said layer of luminous material is phosphor.
Claim 7
Dependent Claim
92 words
A direct view image intensifier anodic film for electron multiplication comprising: a thin plate of partially conducting material containing a plurality of microscopic channels therethrough and having a first electrode on one side and a second electrode on the other side thereof; a layer of luminous material contiguous with said second electrode; an electron preamplifier material contiguous with said first electrode; a glass substrate contiguous with said layer of luminous material; and a voltage supply connected between said first and second electrodes for providing electron acceleration and multiplication through said small channels.
Claim 8
Dependent Claim
21 words
A direct view image intensifier anodic film as set forth in claim 8 wherein said layer of luminous material is phosphor.
Claim 9
Dependent Claim
25 words
A direct view image intensifier anodic film as set forth in claim 9 wherein said electron preamplifier material is a solid layer of gallium arsenide.
Claim 10
Dependent Claim
25 words
A direct view image intensifier anodic film as set forth in claim 9 wherein said electron preamplifier material is a porous layer of gallium arsenide.
Claim 11
Dependent Claim
123 words
A direct view image intensifier anodic film for electron multiplication comprising; a thin plate of partially conductive material containing a plurality of microscopic channels therethrough and having a first electrode on one side and a second electrode on the other side thereof; a layer of luminous material contiguous with said second electrode; an electron preamplifier material contiguous with said first electrode; a transparent cathodic film contiguous with said layer of luminous material; a glass substrate contiguous with said transparent cathodic film; and a voltage supply connected between said first and second electrodes and between said transparent cathodic film and said second electrode whereby electrons passing through said small channels are accelerated and multiplied by the electrical potential difference provided by said voltage suppliEs.
Claim 12
Dependent Claim
21 words
A direct view image intensifier anodic film as set forth in claim 12 wherein said layer of luminous material is phosphor.
Claim 13
Dependent Claim
25 words
A direct view image intensifier anodic film as set forth in claim 13 wherein said electron preamplifier material is a solid layer of gallium arsenide.
Claim 14
Dependent Claim
25 words
A direct view image intensifier anodic film as set forth in claim 13 wherein said electron preamplifier material is a porous layer of gallium arsenide.
Claim 15
Dependent Claim
25 words
A direct view image intensifier anodic film as set forth in claim 14 wherein said transparent cathodic film is a solid layer of gallium arsenide.
Claim 16
Dependent Claim
25 words
A direct view image intensifier anodic film as set forth in claim 15 wherein said transparent cathodic film is a solid layer of gallium arsenide.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-09-17 | 1977-03-19 | 1977-09-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-09-17 | 1981-03-19 | 1981-09-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-09-17 | 1985-03-19 | 1985-09-18 | $7700.00 | Window Closed / Lapsed |