Projection tube having an insulating layer of magnesium oxide an

Projection tube whose coolant contains an ethylene oligomer

Protected lamp device

Protective metal halide film for high-pressure electrodeless dis

Proton source

Pulsed alkali metal vapor discharge lamp with ceramics outer env

Pulsed particle beam vacuum-to-air interface

Quartz metal halide lamps with high lumen output

Quick temperature-raising structure of cold cathode...

Quick warm-up cathode heater for high average power magnetrons

Racetrack microtron beam extraction system

Radiation device

Radiation heated acceleration

Radiation-emitting devices

Radiation-emitting devices

Radiation-emitting devices

Radiator band for an air-cooled electron tube

Radio frequency multipole linear accelerator

Rapid-heating, high-temperature-stable spark plug for internal c

Recessed anode with particulate metal deposit