Title :
A new 9" projection CRT, with dichroic coating for HDTV
Author :
Okuda, Hiroshi ; Takada, Junichi ; Iwasaki, Yasuo ; Hashimot, Noritsuna ; Nagao, Chie
Author_Institution :
Mitsubishi Electr. Corp., Tokyo, Japan
fDate :
8/1/1990 12:00:00 AM
Abstract :
The authors have developed a new 9 inch CRT (cathode ray tube) with dichroic coating and magnetic focusing system with larger aperture lens, and have obtained high picture quality unprecedented for HDTV (high-definition television). The brightness and contrast have been improved by a multiple interference filter and a high brightness phosphor which is the most suitable for the interference filter. Using the dual dichroic coating, a higher color purity has been obtained for green that with direct-view type systems. High resolution has been achieved with the larger aperture lens
Keywords :
cathode-ray tube displays; colour television picture tubes; focusing; high definition television; magnetic lenses; optical filters; phosphors; 9 inch; HDTV; dual dichroic coating; high brightness phosphor; larger aperture lens; magnetic focusing system; multiple interference filter; projection CRT; Apertures; Brightness; Cathode ray tubes; Coatings; Filters; HDTV; Interference; Lenses; Magnetic separation; TV;
Journal_Title :
Consumer Electronics, IEEE Transactions on
