Patent · US Expired

Retromodulator

US4784448A · kind A · utility

11Cited by

11References

5Claims

0Family size

Assignee

Messerschmitt Bolkow Blohm GmbH · DE

Inventors

Gunter Sepp · Ottobrunn, DE
Gunthard Born · Munich, DE

Key dates

Filing date	Jan 16, 1987
Grant date	Nov 15, 1988
Priority date	—
Expiry date	Jan 16, 2007

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T29/42
WIPO fieldOptics
WIPO sectorInstruments

Abstract

A retromodulator in the form of a triple mirror with electromechanical transducer elements for planar deformation by which incident light radiation is retroflected in modulated form. At least one face of the retromodulator is formed as an oscillatory diaphragm which is excited to natural oscillations by the transducer elements. In a preferred form of realization, the oscillatory diaphragm comprises a piezoelectric foil, on whose inner side a reflecting layer is applied and on whose outer side electrodes are applied to which the modulation signal is applied.

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