GB783164A - Improvements in or relating to electron discharge devices employing photo-conductivetarget electrodes - Google Patents
Improvements in or relating to electron discharge devices employing photo-conductivetarget electrodesInfo
- Publication number
- GB783164A GB783164A GB2504656A GB2504656A GB783164A GB 783164 A GB783164 A GB 783164A GB 2504656 A GB2504656 A GB 2504656A GB 2504656 A GB2504656 A GB 2504656A GB 783164 A GB783164 A GB 783164A
- Authority
- GB
- United Kingdom
- Prior art keywords
- cathode
- target
- heating
- conductivetarget
- relating
- 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
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
- H01J9/20—Manufacture of screens on or from which an image or pattern is formed, picked up, converted or stored; Applying coatings to the vessel
- H01J9/233—Manufacture of photoelectric screens or charge-storage screens
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
- H01J9/20—Manufacture of screens on or from which an image or pattern is formed, picked up, converted or stored; Applying coatings to the vessel
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Formation Of Various Coating Films On Cathode Ray Tubes And Lamps (AREA)
Abstract
783,164. Cathode-ray tubes. ELECTRIC & MUSICAL INDUSTRIES, Ltd. Feb. 3, 1954 [Feb. 19, 1953], No. 25046/56. Divided out of 783,162. Class 39(1). In the manufacture of a tube containing a photo - conductive target 7 and a cathode 2 liable to be damagec by such material, the cathode is providec with a protective medium and is exposed by heating only after the target has been formed. The cathode material before heating may be the usual mixture of barium and strontium carbonates and the heating then also serves to form and activate the oxide layer. The protective medium may then be the usual binder, e.g., collodion and extra coatings of collodion may be provided over the cathode surface. The photoconductive material may be selenium or selenium and tellurium and during its evaporation the target is maintained at -10‹C. to 95‹C. while the rest of the envelope is at 150‹C. to 300‹C. Additionally a movable flap 9 may be interposed between the cathode and the target during the deposition process.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB463953A GB783162A (en) | 1953-02-19 | 1953-02-19 | Improvements in or relating to electron discharge devices employing photo-conductivetarget electrodes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB783164A true GB783164A (en) | 1957-09-18 |
Family
ID=9780976
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2504656A Expired GB783164A (en) | 1953-02-19 | 1953-02-19 | Improvements in or relating to electron discharge devices employing photo-conductivetarget electrodes |
| GB463953A Expired GB783162A (en) | 1953-02-19 | 1953-02-19 | Improvements in or relating to electron discharge devices employing photo-conductivetarget electrodes |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB463953A Expired GB783162A (en) | 1953-02-19 | 1953-02-19 | Improvements in or relating to electron discharge devices employing photo-conductivetarget electrodes |
Country Status (1)
| Country | Link |
|---|---|
| GB (2) | GB783164A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6056341A (en) * | 1983-09-06 | 1985-04-01 | Hamamatsu Photonics Kk | Image tube and manufacture of the same |
-
1953
- 1953-02-19 GB GB2504656A patent/GB783164A/en not_active Expired
- 1953-02-19 GB GB463953A patent/GB783162A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB783162A (en) | 1957-09-18 |
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