Arc lamp with movable electrode
Conduction cooling type multistage collector
Discharge lamp device having discharge lamp and circuit unit...
Electron collector for an electron beam tube
Fluorescent lamp for unipolar mode of operation
Gas circulation apparatus for ceramic electron tubes
Glass plate illumination device sign with integral electrodes of
Gradated target for X-ray tubes
High-pressure gas discharge lamp
Photodetecting device and image sensing apparatus using the...
Radiator band for an air-cooled electron tube
Thermal device, mount, and manufacturing method