Cathode ray tube perforated mask frame, method of...

Details Cathode ray tube perforated mask frame, method of... Cathode ray tube perforated mask frame, method of...

H - Electricity

01

J

H01J 29/07 (2006.01)

Patent

CA 2255568

The invention features a frame (30) comprising flat sides (30a, 30b, 30c, 30d) arranged along the lateral faces of a straight prismatic surface. The sides (30a, 30b, 30c, 30d) of the frame (30) comprise an external diphragm (31) and an internal diphragm (32) attached and mutually fixed, each constituted by a thin metal strip portion, preferably ribbed. The frame (30) suspension devices (34) in the cathode ray tube glass housing can be fixed by clipping or welding on the angle parts of the frame (30).

Le cadre (30) comporte des côtés plats (30a, 30b, 30c, 30d) disposés suivant des faces latérales d'une surface prismatique droite. Les côtés (30a, 30b, 30c, 30d) du cadre (30) comportent une membrane externe (31) et une membrane interne (32) rapportées et fixées l'une contre l'autre et constituées chacune par une portion de bande métallique mince de préférence renforcée par des nervures. Les dispositifs (34) de suspension du cadre (30) dans l'enveloppe de verre du tube à rayons cathodiques peuvent être fixés par clipsage ou par soudage sur des parties d'angle (33) du cadre (30).

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