Patent · US Expired

Front attachment for CRT. E.G. for a monitor or video tube

US4804883A · kind A · utility

21Cited by

6References

10Claims

0Family size

Assignee

Flachglas Aktiengesellschaft · DE

Inventors

Dieter Muller · Badenhausen, DE
Wilhelm Rein · Fürth, DE

Key dates

Filing date	Sep 1, 1987
Grant date	Feb 14, 1989
Priority date	—
Expiry date	Sep 1, 2007

Classification

Technology area (CPC H)Electricity
CPC primaryH01J2229/8916
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

Front attachment unit for the cathode ray tube of monitors, television sets or the like, consisting of a sheet of glass, in particular a sheet of gray glass, anti-reflection equipment on the front side and an absorption coating on the rear side, whereby the absorption coating has metallic atoms. The absorption coating is single-layer and made of chromium, a chromium/nickel alloy or silicides. It is anti-statically adjusted and grounded. It is of a thickness which reduces the light transmission compared with a non-coated sheet of glass by approximately a third.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.