GB1198597A - Improvements in or relating to Screens Capable of Fluorescing. - Google Patents
Improvements in or relating to Screens Capable of Fluorescing.Info
- Publication number
- GB1198597A GB1198597A GB12578/69A GB1257869A GB1198597A GB 1198597 A GB1198597 A GB 1198597A GB 12578/69 A GB12578/69 A GB 12578/69A GB 1257869 A GB1257869 A GB 1257869A GB 1198597 A GB1198597 A GB 1198597A
- Authority
- GB
- United Kingdom
- Prior art keywords
- polyimide
- layer
- support
- acid dianhydride
- screen
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 239000004642 Polyimide Substances 0.000 abstract 6
- 239000010410 layer Substances 0.000 abstract 6
- 229920001721 polyimide Polymers 0.000 abstract 6
- GTDPSWPPOUPBNX-UHFFFAOYSA-N ac1mqpva Chemical compound CC12C(=O)OC(=O)C1(C)C1(C)C2(C)C(=O)OC1=O GTDPSWPPOUPBNX-UHFFFAOYSA-N 0.000 abstract 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract 2
- 239000011230 binding agent Substances 0.000 abstract 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 abstract 2
- -1 polysiloxane Polymers 0.000 abstract 2
- WZCQRUWWHSTZEM-UHFFFAOYSA-N 1,3-phenylenediamine Chemical compound NC1=CC=CC(N)=C1 WZCQRUWWHSTZEM-UHFFFAOYSA-N 0.000 abstract 1
- CBCKQZAAMUWICA-UHFFFAOYSA-N 1,4-phenylenediamine Chemical compound NC1=CC=C(N)C=C1 CBCKQZAAMUWICA-UHFFFAOYSA-N 0.000 abstract 1
- SDWGBHZZXPDKDZ-UHFFFAOYSA-N 2,6-dichloronaphthalene-1,4,5,8-tetracarboxylic acid Chemical compound C1=C(Cl)C(C(O)=O)=C2C(C(=O)O)=CC(Cl)=C(C(O)=O)C2=C1C(O)=O SDWGBHZZXPDKDZ-UHFFFAOYSA-N 0.000 abstract 1
- RWRDLPDLKQPQOW-UHFFFAOYSA-N Pyrrolidine Chemical compound C1CCNC1 RWRDLPDLKQPQOW-UHFFFAOYSA-N 0.000 abstract 1
- 239000002253 acid Substances 0.000 abstract 1
- 239000012790 adhesive layer Substances 0.000 abstract 1
- 239000004411 aluminium Substances 0.000 abstract 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract 1
- 229910052782 aluminium Inorganic materials 0.000 abstract 1
- 229910052787 antimony Inorganic materials 0.000 abstract 1
- WATWJIUSRGPENY-UHFFFAOYSA-N antimony atom Chemical compound [Sb] WATWJIUSRGPENY-UHFFFAOYSA-N 0.000 abstract 1
- 150000004984 aromatic diamines Chemical class 0.000 abstract 1
- WPYMKLBDIGXBTP-UHFFFAOYSA-N benzoic acid Chemical compound OC(=O)C1=CC=CC=C1 WPYMKLBDIGXBTP-UHFFFAOYSA-N 0.000 abstract 1
- CJOBVZJTOIVNNF-UHFFFAOYSA-N cadmium sulfide Chemical compound [Cd]=S CJOBVZJTOIVNNF-UHFFFAOYSA-N 0.000 abstract 1
- 229910052980 cadmium sulfide Inorganic materials 0.000 abstract 1
- 229910052792 caesium Inorganic materials 0.000 abstract 1
- TVFDJXOCXUVLDH-UHFFFAOYSA-N caesium atom Chemical compound [Cs] TVFDJXOCXUVLDH-UHFFFAOYSA-N 0.000 abstract 1
- 230000005494 condensation Effects 0.000 abstract 1
- 238000009833 condensation Methods 0.000 abstract 1
- 238000006482 condensation reaction Methods 0.000 abstract 1
- 239000004922 lacquer Substances 0.000 abstract 1
- 239000000395 magnesium oxide Substances 0.000 abstract 1
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 abstract 1
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 abstract 1
- KQSABULTKYLFEV-UHFFFAOYSA-N naphthalene-1,5-diamine Chemical compound C1=CC=C2C(N)=CC=CC2=C1N KQSABULTKYLFEV-UHFFFAOYSA-N 0.000 abstract 1
- DOBFTMLCEYUAQC-UHFFFAOYSA-N naphthalene-2,3,6,7-tetracarboxylic acid Chemical compound OC(=O)C1=C(C(O)=O)C=C2C=C(C(O)=O)C(C(=O)O)=CC2=C1 DOBFTMLCEYUAQC-UHFFFAOYSA-N 0.000 abstract 1
- 230000003287 optical effect Effects 0.000 abstract 1
- 229920001296 polysiloxane Polymers 0.000 abstract 1
- 239000000377 silicon dioxide Substances 0.000 abstract 1
- 235000012239 silicon dioxide Nutrition 0.000 abstract 1
- 229910052709 silver Inorganic materials 0.000 abstract 1
- 239000004332 silver Substances 0.000 abstract 1
- 239000000126 substance Substances 0.000 abstract 1
Classifications
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21K—TECHNIQUES FOR HANDLING PARTICLES OR IONISING RADIATION NOT OTHERWISE PROVIDED FOR; IRRADIATION DEVICES; GAMMA RAY OR X-RAY MICROSCOPES
- G21K4/00—Conversion screens for the conversion of the spatial distribution of X-rays or particle radiation into visible images, e.g. fluoroscopic screens
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J29/00—Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
- H01J29/02—Electrodes; Screens; Mounting, supporting, spacing or insulating thereof
- H01J29/10—Screens on or from which an image or pattern is formed, picked up, converted or stored
- H01J29/18—Luminescent screens
- H01J29/24—Supports for luminescent material
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J29/00—Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
- H01J29/02—Electrodes; Screens; Mounting, supporting, spacing or insulating thereof
- H01J29/10—Screens on or from which an image or pattern is formed, picked up, converted or stored
- H01J29/36—Photoelectric screens; Charge-storage screens
- H01J29/38—Photoelectric screens; Charge-storage screens not using charge storage, e.g. photo-emissive screen, extended cathode
- H01J29/385—Photocathodes comprising a layer which modified the wave length of impinging radiation
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J31/00—Cathode ray tubes; Electron beam tubes
- H01J31/08—Cathode ray tubes; Electron beam tubes having a screen on or from which an image or pattern is formed, picked up, converted, or stored
- H01J31/50—Image-conversion or image-amplification tubes, i.e. having optical, X-ray, or analogous input, and optical output
- H01J31/501—Image-conversion or image-amplification tubes, i.e. having optical, X-ray, or analogous input, and optical output with an electrostatic electron optic system
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- High Energy & Nuclear Physics (AREA)
- Image-Pickup Tubes, Image-Amplification Tubes, And Storage Tubes (AREA)
Abstract
1,198,597. Luminescent screens. SIEMENS A.G. 10 March, 1969 [14 March, 1968], No. 12578/69. Heading C4S. [Also in Division H1] In a screen, e.g. for an X-ray image intensifier, the support, on which is disposed a layer of a substance capable of fluorescing, is formed of a polyimide. Preferably the polyimide is a film of thickness less than 15Á and is formed as the product of a condensation reaction between a tetrabasic aromatic acid and an aromatic diamine. For example, the polyimide may be the product of the condensation of one or more of m-diaminobenzene, p-diaminobenzene, 4,41- diaminodiphenylpropane, 4,4<SP>1</SP>-diaminodiphenyl methane, 4,4<SP>1</SP>-diaminodiphenylether, 1,5-diaminonaphthalene and 3,3<SP>1</SP>-dichlorobenzidine, with one or more of 2,3,6,7-naphthalenetetracarboxylic acid dianhydride, 3,3<SP>1</SP>,4,4<SP>1</SP>-diphenyltetracarboxylic acid dianhydride, 2,6-dichloronaphthalene - 1,4,5,8 - tetracarboxylic acid dianhydride, and pyrolidine 2,3,4,5-tetracarboxylic acid dianhydride. As shown, such screens may comprise a photocathode 3, image-forming electrodes 5, 6 and 9, and fluorescent screen 8. The photo-cathode consists of a polyimide support 10 less than 10Á thick, a fluorescent layer 11 of cadmium sulphide with a polysiloxane binder covered with a reflecting layer 12 of magnesium oxide on the side of the support 10 facing the input window 4, the other side of support 10 being covered with a photo-cathode layer 13 consisting of antimony. activated with caesium. The fluorescent screen 8 comprises polyimide support 16, fluorescent layer 17 of silver-activated zinc-cadmium sulphide with a silicon dioxide binder and an aluminium layer 18, and the screen may be maintained in good optical contact with the end wall 7 by an adhesive layer 19 consisting of a polyimide lacquer.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19681622999 DE1622999C3 (en) | 1968-03-14 | Luminescent screens, in particular for use in image converter or image intensifier tubes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1198597A true GB1198597A (en) | 1970-07-15 |
Family
ID=5682706
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB12578/69A Expired GB1198597A (en) | 1968-03-14 | 1969-03-10 | Improvements in or relating to Screens Capable of Fluorescing. |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US3617791A (en) |
| FR (1) | FR2003856A1 (en) |
| GB (1) | GB1198597A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2159323A (en) * | 1984-05-07 | 1985-11-27 | Rca Corp | Crt with carbon-particle layer on a metallized viewing screen and preparation method |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2212579A1 (en) * | 1972-03-15 | 1973-09-27 | Siemens Ag | VACUUM IMAGE CONVERTER |
| JPS4895769A (en) * | 1972-03-17 | 1973-12-07 | ||
| FR2195062B1 (en) * | 1972-08-02 | 1976-03-12 | Labo Electronique Physique | |
| FR2629267B1 (en) * | 1988-03-22 | 1996-01-26 | Thomson Csf | DEVICE FOR CHROMATICALLY CONVERTING AN IMAGE OBTAINED IN ELECTROMAGNETIC RADIATION AND MANUFACTURING METHOD THEREOF |
| DE19854199C1 (en) * | 1998-11-24 | 2000-03-30 | Siemens Ag | X-ray picture enhancer comprises an anode ceramic sleeve which surrounds the anode and which forms part of the vacuum housing, and an inner electrode. |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2945976A (en) * | 1957-12-10 | 1960-07-19 | Gen Electric | Electroluminescent lamp and manufacture thereof |
| US3254252A (en) * | 1962-01-24 | 1966-05-31 | Westinghouse Electric Corp | Image device |
| NL6511566A (en) * | 1965-09-04 | 1967-03-06 |
-
1969
- 1969-03-10 FR FR6906663A patent/FR2003856A1/fr not_active Withdrawn
- 1969-03-10 GB GB12578/69A patent/GB1198597A/en not_active Expired
- 1969-03-11 US US812543A patent/US3617791A/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2159323A (en) * | 1984-05-07 | 1985-11-27 | Rca Corp | Crt with carbon-particle layer on a metallized viewing screen and preparation method |
| US4623820A (en) | 1984-05-07 | 1986-11-18 | Rca Corporation | CRT with carbon-particle layer on a metallized viewing screen |
Also Published As
| Publication number | Publication date |
|---|---|
| DE1622999A1 (en) | 1971-01-14 |
| DE1622999B2 (en) | 1976-12-30 |
| US3617791A (en) | 1971-11-02 |
| FR2003856A1 (en) | 1969-11-14 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PLNP | Patent lapsed through nonpayment of renewal fees |