Uniform gas distribution in large area plasma source

Unipotential lens assembly for charged particle beam tubes...

Unitary light shield for use in color picture tube lighthouses

Unitary self shielded, self filtered and flattened...

Unitary socket/electronics assembly module for a metal...

Unitized electron gun having electrodes with internal...

Unitized in-line electron gun and a method of manufacture...

Unitized in-line electron gun having improved support structure

Unitized in-line electron gun having stress-absorbing...

Universal burn metal halide lamp

Universal burning alkali metal vapor lamp

Universal burning ceramic lamp

Universal collisional activation ion trap mass spectrometry

Universal sealed beam lamp

Unsaturated vapor high pressure sodium lamp arc tube...

Unsaturated vapor high pressure sodium lamp fabrication...

Unsaturated vapor high pressure sodium lamp getter mounting

Unsaturated vapor pressure type high pressure sodium lamp

Use of a uva illuminant

Use of an off-axis ion path for background reduction of an...