Abstract:
Es wird eine Vorrichtung mit einer optischen Struktur und Stegen beschrieben, bei der zwischen den Stegen und der tragenden Struktur Kleber angeordnet ist, wobei der Kleber wirksam ist, um nach dessen Aushärtung eine vorbestimmte Ausrichtung der optischen Struktur bezüglich einer Bezugsebene zu bewirken.
Abstract:
A MEMS switch includes a latch mechanism, first and second electrical conductors, a first latch actuator, a second latch actuator, and an axial actuator. The latch mechanism may include a transfer rod and a contact member, the contact member extending radially outwardly from a position along the axial length of the transfer rod. The first and second electrical conductors may extend along, and may be radially offset from, a portion of the transfer rod. The first latch actuator may include a first latch pin, and the second latch actuator may include a second latch pin, the first and second latch actuators being configured to move toward and away from the transfer rod, and the first and second latch pins configured to engage the contact member. The at least one axial actuator may be configured to move the contact member towards and away from the first and second electrical conductors.
Abstract:
A MEMS-based Fourier Transform (FT) spectrometer is provided. According to an embodiment, the MEMS-based FT spectrometer is an FT infrared (FTIR) spectrometer. The FT spectrometer can include a beam splitter positioned to receive an incoming beam from a light source and split the incoming beam into a first sub-beam and a second sub-beam, a fixed mirror positioned to receive the first sub-beam from the beam splitter, a scanning MEMS mirror positioned to receive the second sub-beam from the beam splitter, and a photodetector, wherein a reflected first sub-beam from the fixed mirror and a reflected second sub-beam from the scanning MEMS mirror recombine at the beam splitter and become directed to the photodetector. According to one embodiment, the photodetector is a MEMS-based IR detector. In addition, the MEMS-based IR detector can be an un-cooled IR detector having a capacitive sensing structure.
Abstract:
The invention concerns a method of fabricating a micromirror (1) in a wafer (3), comprising the following steps: depositing and etching layers (7, 9) forming two arms (5); etching the wafer such that in the back face only a thin portion of the wafer remains in the region of formation of the micromirror and the arms; performing an anisotropic etch, such that the thin portion remains only in the areas of the micromirror and the arms; and performing an isotropic etch to remove the thin portions under the arms, the etching step for forming the arms being performed following their shape and so as to form holes (70) traversing the arms, the holes being positioned at edges of the region separating the micromirror and the wafer on both the side of the micromirror and the side of the portions of the wafer remaining after the anisotropic etching step. The invention also concerns the micromirror.
Abstract:
A Discretely Controlled Micromirror Array Lens (DCMAL) consists of many Discretely Controlled Micromirrors (DCMs) and actuating components. The actuating components control the positions of DCMs electrostatically. The optical efficiency of the DCMAL is increased by locating a mechanical structure upholding DCMs and the actuating components under DCMs to increase an effective reflective area. The known microelectronics technologies can remove the loss in effective reflective area due to electrode pads and wires. The lens can correct aberrations by controlling DCMs independently. Independent control of each DCM is possible by known microelectronics technologies. The DCM array can also form a lens with arbitrary shape and/or size, or a lens array comprising the lenses with arbitrary shape and/or size.
Abstract:
A high performance MEMS scanner (202) is disclosed. In some embodiments, scanner mirror has a wide and short aspect ratio that is similar to rotating polygon facets. Long torsion arms (206) allow large rotation angles including 20° zero-to-peak mechanical and greater. Suspensions (208) couple the scan mirror to torsion arms (206), reducing dynamic mirror deformation by spreading the torque load. "leverage members" (212) at the distal ends of the torsion arms (206) help reduce stress concentrations. Elimination of a mounting frame increases device yield. Heater leads allow for precise trimming of the scanner resonant frequency. A compressive mount holds mounting pads (214) against mounting structures.
Abstract:
A Discretely Controlled Micromirror Array Lens (DCMAL) consists of many Discretely Controlled Micromirrors (DCMs) and actuating components. The actuating components control the positions of DCMs electrostatically. The optical efficiency of the DCMAL is increased by locating a mechanical structure upholding DCMs and the actuating components under DCMs to increase an effective reflective area. The known microelectronics technologies can remove the loss in effective reflective area due to electrode pads and wires. The lens can correct aberrations by controlling DCMs independently. Independent control of each DCM is possible by known microelectronics technologies. The DCM array can also form a lens with arbitrary shape and/or size, or a lens array comprising the lenses with arbitrary shape and/or size.