Gijsbertus Bouwhuis

Method and arrangement for aligning a mask pattern relative to a semiconductor substrate

Optical system for a color television camera

Optical record carrier and method and apparatus for increasing the resolution of information recorded thereon and read therefrom

Apparatus for playing a transparent optically encoded multilayer information carrying disc

Apparatus for positional control of a reading head in a device for reproducing optically coded video disk recordings

Device for displaying three-dimensional images

Apparatus for reading a radiation-reflecting record carrier

Apparatus for reading a flat record carrier with an optically readable information structure

Videodisc with undulating nested tracks

Device for detecting a magnification error in an optical imaging system