Optical: systems and elements – Optical modulator – Light wave temporal modulation
Reexamination Certificate
2005-04-19
2005-04-19
Spector, David N. (Department: 2873)
Optical: systems and elements
Optical modulator
Light wave temporal modulation
C359S290000, C359S291000
Reexamination Certificate
active
06882462
ABSTRACT:
A micro-electromechanical system (MEMS) scanner may be used in a range of systems including a scanned beam display or a scanned beam image capture system. The MEMS scanner may include provision for movement or oscillation in two or more axes. A mass asymmetry is introduced to the scanner. The mass asymmetry induces an oscillation component in an axis orthogonal to a primary axis of movement. The asymmetric mass may be formed by a number of means including selective application and selective removal. In some applications, the mass may be selectively formed or removed in an array of locations. The frequency, phase, and direction of induced oscillation component may be selected.
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Helsel Mark P.
Tegreene Clarence T.
Wine David W.
Microvision Inc.
Spector David N.
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