Invention Grant
- Patent Title: Wide angle type cathode-ray tube
- Patent Title (中): 宽角型阴极射线管
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Application No.: US22819172Application Date: 1972-02-22
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Publication No.: US3806750APublication Date: 1974-04-23
- Inventor: TSUNETA A , SAWAGATA S
- Applicant: TOKYO SHIBAURA ELECTRIC CO
- Assignee: Tokyo Shibaura Electric Co
- Current Assignee: Tokyo Shibaura Electric Co
- Priority: US22819172 1972-02-22; JP1763569 1969-02-28; JP1763669 1969-02-28; JP1763769 1969-02-28; US1417370 1970-02-25
- Main IPC: H01J29/76
- IPC: H01J29/76 ; H01J29/86 ; H01J31/20 ; H01J29/00
Abstract:
In a cathode-ray tube, the envelope comprises conical and neck portions wherein the conical portion has a rear cone section of rectangular truncated pyramidal shape and a front cone section flaring from the rear cone section at a wider angle.
Information query
