Patent · US Active

Control device for a micromirror, method for controlling a micromirror and image projection system

US8963898B2 · kind B2 · utility

1Cited by

8References

9Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Detlef Billep · Chemnitz, DE
Hendrik Specht · Rübgarten, DE
Kurth Steffen · Bitterfeld-Wolfen, DE
Thomas Hilberath · Eningen unter Achalm, DE
Thomas Gessner · Plymouth, US
Oliver Krayl · Gerlingen, DE

Key dates

Filing date	Aug 3, 2012
Grant date	Feb 24, 2015
Priority date	—
Expiry date	Feb 18, 2033

Classification

Technology area (CPC G)Physics
CPC primaryG02B26/101
WIPO fieldOptics
WIPO sectorInstruments

Abstract

A method for controlling a micro-mirror, having the following: generating a first control signal which encodes a tilting motion of the micro-mirror about a first tilt axis, at a first frequency; generating a second control signal which encodes a tilting motion of the micro-mirror about a second tilt axis which is perpendicular to the first tilt axis, at a second frequency which is lower than the first frequency; modulating the second control signal by binary modulation of the second control signal, at the first frequency; and controlling force coupling elements of the micro-mirror, using the modulated second control signal and the first control signal.

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