Video endoscope with a light source operable in a continuous or stroboscopic mode

摘要: A video endoscope has a strobe lamp operable in mode wherein the strobing is synchronized to selected tone or periodic vibration patient, such as from vocal cords, and alternatively so rapid appear substantially continuous light source. In second mode, resulting image be displayed by system, trigger circuit for operating supplied with signal that triggered during either horizontal vertical blanking interval triggering of does not cause interference picture.