FR1566316A - - Google Patents
Info
- Publication number
- FR1566316A FR1566316A FR1566316DA FR1566316A FR 1566316 A FR1566316 A FR 1566316A FR 1566316D A FR1566316D A FR 1566316DA FR 1566316 A FR1566316 A FR 1566316A
- Authority
- FR
- France
- 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
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J1/00—Details of electrodes, of magnetic control means, of screens, or of the mounting or spacing thereof, common to two or more basic types of discharge tubes or lamps
- H01J1/02—Main electrodes
- H01J1/34—Photo-emissive cathodes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J40/00—Photoelectric discharge tubes not involving the ionisation of a gas
- H01J40/02—Details
- H01J40/04—Electrodes
- H01J40/06—Photo-emissive cathodes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J2201/00—Electrodes common to discharge tubes
- H01J2201/34—Photoemissive electrodes
- H01J2201/342—Cathodes
- H01J2201/3421—Composition of the emitting surface
- H01J2201/3426—Alkaline metal compounds, e.g. Na-K-Sb
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR138071 | 1968-01-31 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR1566316A true FR1566316A (ja) | 1969-05-09 |
Family
ID=8645332
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR1566316D Expired FR1566316A (ja) | 1968-01-31 | 1968-01-31 |
Country Status (4)
Country | Link |
---|---|
DE (1) | DE1904467A1 (ja) |
FR (1) | FR1566316A (ja) |
GB (1) | GB1217477A (ja) |
NL (1) | NL6901416A (ja) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL7508791A (nl) * | 1975-07-23 | 1977-01-25 | Optische Ind De Oude Delft Nv | Beeldversterkerbuis van het proximity focus type. |
GB2111299B (en) * | 1981-11-30 | 1986-07-09 | Thermo Electron Corp | High current density photoelectron generators |
US7183701B2 (en) | 2003-05-29 | 2007-02-27 | Nova Scientific, Inc. | Electron multipliers and radiation detectors |
-
1968
- 1968-01-31 FR FR1566316D patent/FR1566316A/fr not_active Expired
-
1969
- 1969-01-27 GB GB442969A patent/GB1217477A/en not_active Expired
- 1969-01-29 NL NL6901416A patent/NL6901416A/xx unknown
- 1969-01-30 DE DE19691904467 patent/DE1904467A1/de active Pending
Also Published As
Publication number | Publication date |
---|---|
GB1217477A (en) | 1970-12-31 |
NL6901416A (ja) | 1969-08-04 |
DE1904467A1 (de) | 1969-08-28 |
Similar Documents
Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |