| 摘要 |
1,224,945. Cathode-ray display tubes. TELEFUNKEN PATENTVERWERTUNGS G.m.b.H. 30 May, 1969 [30 May, 1968], No. 27615/69. Heading HID. A character-indicating cathode-ray tube comprising a fluorescent screen to which a selected electron beam passes through an associated stencil, is characterized in that there are twelve beam sources, one for each character to be displayed, arranged in two rows of six; preferably the characters are the ten digits together with a comma and a full-stop. There may be a common thermionic cathode for each row of characters and a control electrode for each character; this is followed by a common anode and a stencil electrode which shapes each beam to the required form. |
