A liquid crystal shutter, mounted on the side of a lens in a video camera, includes a pair of polarizing filters with a liquid crystal cell between them. A pulse generator generates a pulse for a predetermined length of time that is synchronized with a vertical synchronizing signal of a television signal....http://www.google.fr/patents/US5619266?utm_source=gb-gplus-shareBrevet US5619266 - Liquid crystal shutter control circuit for a video camera having a synchronized strobe flash
Liquid crystal shutter control circuit for a video camera having a ...
