Patent · US Expired

Transversal electrooptical modulator

US6424452B1 · kind B1 · utility

3Cited by

1References

9Claims

0Family size

Assignee

Gsanger Optoelektronik GmbH & Co. · DE

Inventors

Frank Diedrich · Karlsruhe, DE
Mario Ledig · Gauting, DE
Thomas Fehn · Kronach, DE
Thomas Engel · Munich, DE
Frank Reissmann · Reichenbach, DE

Key dates

Filing date	Oct 5, 2000
Grant date	Jul 23, 2002
Priority date	—
Expiry date	Oct 5, 2020

Classification

Technology area (CPC G)Physics
CPC primaryG02F1/0311
WIPO fieldOptics
WIPO sectorInstruments

Abstract

The invention relates to a transversal electrooptical modulator (10) which can be controlled by means of an electric amplifier, comprising at least two elements for modulating (11) the light wave of a laser beam, and can preferably be used for projection of TV images. The invention is characterized in that the modulator elements are arranged behind each other in relation to the laser beam, that a focusing device (14) is arranged both in front of and behind each modulator element, that an electric amplifier output (22, 23) is associated with each modulator element and that all electric amplifier (A) inputs (24, 25) are connected to the same control line (26) as the control signal.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.