Microelectromechanical devices having brake assemblies...

B - Operations – Transporting – 81 – B

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B81B 5/00 (2006.01) B81B 3/00 (2006.01) B81B 7/02 (2006.01) F16D 63/00 (2006.01) G02B 6/35 (2006.01) G02B 26/00 (2006.01)

Patent

CA 2332219

Microelectromechanical devices may include a substrate having first and second optical fibers thereon. An optical shutter may also be provided. This optical shutter is mechanically coupled to a first plurality of arched beams that are supported at opposing ends by support structures which may be mounted on the substrate. A second plurality of arched beams are also provided on a first side of the optical shutter. These arched beams are also supported at opposing ends by support structures. A first brake member is provided that is coupled to the second plurality of arched beams. This first brake member contacts and restricts the optical shutter from moving in the ~y-direction when the second plurality of arched beams are relaxed, but releases the optical shutter when the second plurality of arched beams move in the -x direction. This ability to restrict movement of the optical shutter when the second plurality of arched beams are relaxed provides a degree of nonvolatile position retention. A third plurality of arched beams are also preferably provided on a second side of the optical shutter. A second brake member, which is coupled to the third plurality of arched beams, also contacts and restricts the shutter member from moving in the ~y direction when the third plurality of arched beams are relaxed, but releases the optical shutter when the third plurality of arched beams move in the +x direction.

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