Electrically rotationally actuatable micro-mirror or micro lens

Optical: systems and elements – Optical modulator – Light wave temporal modulation

Reexamination Certificate

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C359S198100, C359S210100, C359S225100

Reexamination Certificate

active

07408695

ABSTRACT:
Micro-mirror or micro-lens made up of a moving part (10) with a reflective or refringent zone (17), a fixed part (14), means of connection (13) of the moving part (10) to the fixed part (14) which forms an axis of rotation (12) for the moving part (10) and of means for controlling (18) the rotation. The means of control include two or more actuators (19) arranged either side of the axis (12), each formed of a fixed electrode (20) forming part of the fixed part (14) and a moving electrode (21) possessing a free end (21.1) and an end connected to a drive arm (23) which is substantially parallel to the axis (12) and emerging from the moving part (10). The moving electrode (21) adheres to the fixed electrode (20) from its free end (21.1) when a voltage is applied to the actuator (19), the adhesion is a function of the applied voltage.Application to optical systems.

REFERENCES:
patent: 6115231 (2000-09-01), Shirakawa
patent: 6633212 (2003-10-01), Ruan et al.
patent: 1193528 (2002-04-01), None
Search Report (French Preliminary) FR 0350508000 (Sep. 8, 2003).
Senturia, J.R. Gilbert, et al., “Two-Phase Actuators: Stable Zipping Devices Without Fabrication Of Curved Structures”, Solid-State Sensor and Actuator Workshop, Jun. 1996, Hilton Head S.C., (pp. 98-100).
Schwart, Wilfrid, et al., “A Micromachined Deformable Mirror For Adaptive Optics”, Moems And Miniaturized Systems III, Proc. Of SPIE vol. 498, vol. 4983 (Jan. 29, 2003), pp. 230-241.
Patterson, Pamela R., et al., “A Scanning Micromirror With Angular Comb Drive Actuation”, (2000 IEEE), pp. 544-547.

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