Optical focus adjustment means for projection television apparat
Optical heterodyne system for imaging in a dynamic diffusive med
Optical image correlator tracking filter circuit
Optical image pickup system
Optical image reading apparatus capable of reading multi-colored
Optical low pass filter
Optical low-pass filter
Optical low-pass filter including three crystal plates for a sol
Optical method and apparatus for carrying out the method
Optical proximity correction in raster scan printing based...
Optical proximity correction in raster scan printing based...
Optical scanner for color facsimile
Optical scanner for reading data recorded in plural colors
Optical scanning and encoding device
Optical scanning and encoding device
Optical system and method for image sampling in a video projecti
Optical system for a color television camera
Optical system for a three-tube projection television set
Optical system for an LCD projector
Optical system for color television cameras