Photointerruptor for use in light-transmission type rotary encod

Photometer microscope for microphotometer scanning of fine speci

Photometering circuit

Photometric apparatus for cameras

Photometric system including a time-division optical attenuator

Photomicrographic system for flowing fluids

Photoparamp array multiplexer

Photoreceptor assembly for automatic focusing system

Photosensitive matrix with substrate

Photosensitive sheet handling method and device

Picture phone

Piezo-electric line of sight corrector for inertial platform sta

Polarimetric fiber optic speed sensor

Polarization compensator for optical communications

Polarization reference imaging system

Polarization reference imaging technique

Polychromatic image sensor

Polygonal cylinder for use in optical picture scanning systems

Portable mass spectrometer with one or more mechanically adjusta

POS optical scanning station with slotted planar plate