Abstract: An electromagnetic deflection unit (7) coaxially surrounds a part of the envelope (1) of a cathode array tube. The deflection unit (7) comprises a coil support (8) and a deflection coil system (11, 11') which is located between the coil support (8) and the envelope (1). Each end portion (18, 18') of the coils (11, 11') is located exclusively on the side of the front flange (16, 16') of the associated coil (11, 11') facing away from the envelope (1). By virtue thereof, the deflection unit (7) can be tilted relative to the envelope (1) such that a sufficient degree of convergence of electron beams on the display screen of the cathode ray tube is obtained.
Type:
Grant
Filed:
December 3, 1991
Date of Patent:
March 16, 1993
Assignee:
U.S. Philips Corporation
Inventors:
Antonius P. M. Grubben, Johannus T. F. van Kemenade, Jacobus J. M. van de Meerakker
Abstract: The electric lamp has ceramic lamp caps (7, 8) secured to the lamp vessel (1) without the use of cement. This is realized by securing the cable (9) to the current supply conductor (5) after the lamp cap (7) has been provided. Securing is made possible by the shape of the lamp cap (7) which has a cavity (13) for the seal (2) of conductor (5), which duct runs into a recess (14) for the cable (9). A bore (15) enables the cable (9) to be connected to the current supply conductor (5) after the lamp cap (7) has been provided.
Type:
Grant
Filed:
May 3, 1989
Date of Patent:
March 19, 1991
Assignee:
U.S. Philips Corporation
Inventors:
Eduard J. P. Janssen, Victor R. Notelteirs