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GB480275A - Improvements in or relating to cathode ray tubes - Google Patents

Improvements in or relating to cathode ray tubes

Info

Publication number
GB480275A
GB480275A GB2298136A GB2298136A GB480275A GB 480275 A GB480275 A GB 480275A GB 2298136 A GB2298136 A GB 2298136A GB 2298136 A GB2298136 A GB 2298136A GB 480275 A GB480275 A GB 480275A
Authority
GB
United Kingdom
Prior art keywords
cathode
ray tubes
relating
cathode ray
electrodes
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
Application number
GB2298136A
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.)
DAVID MALCOLM JOHNSTONE
Baird Television Ltd
Original Assignee
DAVID MALCOLM JOHNSTONE
Baird Television Ltd
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 DAVID MALCOLM JOHNSTONE, Baird Television Ltd filed Critical DAVID MALCOLM JOHNSTONE
Priority to GB2298136A priority Critical patent/GB480275A/en
Publication of GB480275A publication Critical patent/GB480275A/en
Expired legal-status Critical Current

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
    • H01J29/46—Arrangements of electrodes and associated parts for generating or controlling the ray or beam, e.g. electron-optical arrangement
    • H01J29/52—Arrangements for controlling intensity of ray or beam, e.g. for modulation

Landscapes

  • Image-Pickup Tubes, Image-Amplification Tubes, And Storage Tubes (AREA)

Abstract

480,275. Cathode-ray tubes ; electron multipliers. BAIRD TELEVISION, Ltd., JOHNSTONE, D. M., and SZEGHO, C. Aug. 20, 1936, No. 22981. [Class 39 (i)] The beam in a cathode-ray tube is modulated in intensity, amplified by impact with one or more flat, foramin ated secondary. emitting electrodes and thereafter deflected over a luminescent screen. As shown, a series of mesh multiplying electrodes 3 is arranged between the modulator 2 and the lens 4, the latter focusing the stream on an apertured diaphragm 6. A received television signal may be applied to the electrode 2 directly. The cathode 1 may be photo-electric or thermionic. The beam may be concentrated electromagnetically.
GB2298136A 1936-08-20 1936-08-20 Improvements in or relating to cathode ray tubes Expired GB480275A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2298136A GB480275A (en) 1936-08-20 1936-08-20 Improvements in or relating to cathode ray tubes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2298136A GB480275A (en) 1936-08-20 1936-08-20 Improvements in or relating to cathode ray tubes

Publications (1)

Publication Number Publication Date
GB480275A true GB480275A (en) 1938-02-21

Family

ID=10188165

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2298136A Expired GB480275A (en) 1936-08-20 1936-08-20 Improvements in or relating to cathode ray tubes

Country Status (1)

Country Link
GB (1) GB480275A (en)

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