Cathode ray tube face plate construction for suppressing the...

Details Cathode ray tube face plate construction for suppressing the... Cathode ray tube face plate construction for suppressing the...

H - Electricity

01

J

313/35.34, 313/3

H01J 29/18 (2006.01) H01J 29/28 (2006.01) H01J 29/86 (2006.01)

Patent

CA 1149440

CATHODE RAY TUBE FACE PLATE CONSTRUCTION FOR SUPPRESSING THE HALO HAVING A LOW REFLECTION AND METHOD Abstract of the Disclosure A cathode ray tube face plate construction for suppressing the halo on the face plate of the cathode ray tube having a face plate formed of glass with an index of refraction in the vicinity of 1.52 and with outer and inner surfaces. A fluorescent phosphor screen is carried by the inner sur- face. A metallic coating may overlie the phosphor screen on the side of the screen facing away from the face plate. An absorbing filter is disposed between the phosphor screen and the face plate for absorbing light emitted from the phosphor screen. An angle sensitive short wave pass filter is disposed between the phosphor screen and the absorbing filter for reflecting light emitted at a high angle from the phosphor screen.

351435

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