FR2349949B3 - - Google Patents

Info

Publication number
FR2349949B3
FR2349949B3 FR7714145A FR7714145A FR2349949B3 FR 2349949 B3 FR2349949 B3 FR 2349949B3 FR 7714145 A FR7714145 A FR 7714145A FR 7714145 A FR7714145 A FR 7714145A FR 2349949 B3 FR2349949 B3 FR 2349949B3
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
Application number
FR7714145A
Other languages
French (fr)
Other versions
FR2349949A1 (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
South African Inventions Development Corp
Original Assignee
South African Inventions Development Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by South African Inventions Development Corp filed Critical South African Inventions Development Corp
Publication of FR2349949A1 publication Critical patent/FR2349949A1/en
Application granted granted Critical
Publication of FR2349949B3 publication Critical patent/FR2349949B3/fr
Granted legal-status Critical Current

Links

Classifications

    • 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
FR7714145A 1976-04-30 1977-04-29 Focussing system for image intensifier tube - has dished cathode, perforated intermediate anode and second spaced planar anode Granted FR2349949A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ZA762611A ZA762611B (en) 1976-04-30 1976-04-30 An electron beam device

Publications (2)

Publication Number Publication Date
FR2349949A1 FR2349949A1 (en) 1977-11-25
FR2349949B3 true FR2349949B3 (en) 1980-03-07

Family

ID=25570265

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7714145A Granted FR2349949A1 (en) 1976-04-30 1977-04-29 Focussing system for image intensifier tube - has dished cathode, perforated intermediate anode and second spaced planar anode

Country Status (3)

Country Link
DE (1) DE2718423A1 (en)
FR (1) FR2349949A1 (en)
ZA (1) ZA762611B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ZA93581B (en) * 1992-01-27 1993-09-01 Csir Ionising radiation converter
DE4208538C2 (en) * 1992-03-17 1994-01-05 Siemens Ag X-ray image intensifier
DE4208540C2 (en) * 1992-03-17 1994-01-05 Siemens Ag X-ray image intensifier

Also Published As

Publication number Publication date
FR2349949A1 (en) 1977-11-25
ZA762611B (en) 1977-12-28
DE2718423A1 (en) 1977-11-10

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Legal Events

Date Code Title Description
ST Notification of lapse