Optical inspection system

Optical low pass filter

Optical low pass filter

Optical low pass filter

Optical low pass filter utilizing a phase grating

Optical low-pass filter

Optical low-pass filter

Optical low-pass filter

Optical low-pass filter and photographic system using the same

Optical metrology

Optical monitoring facility and the method for using it

Optical pattern generation technique

Optical pattern generation technique

Optical playback system having increased depth-of-field

Optical player with half wave plate

Optical prism, and projection television set using same

Optical probe

Optical profilometry system for tubular products

Optical projection device and an optical reader incorporating th

Optical read-out system including asymetrical beam intensity and