Panoramic optical system with very sharp beam control
Particle beam injection system
Phase controller
Phase shift modulation-based control of amplitude of AC...
Photographic devices for controlling flash photography
Photographic stroboscope
Picture display device comprising a picture display tube and a c
Piezoelectrically actuated variable capacitor
Planar electrodeless fluorescent light source
Plane wave transformer linac structure
Plasma control and utilization
Plasma lamp with stable feedback amplification and method...
Plasma lighting system
Plasma-generation power-supply device
Plural ferro-resonant power supplies for powering a magnetron wh
Portable fluorescent task lamp
Portable fluorescent tube assembly having low voltage convenienc
Positive starting and operating apparatus for high-pressure sodi
Power balanced coupling structure for electrodeless discharge la
Power circuit and illumination apparatus