Abstract:
The invention relates to an electrode comb (52, 54) for a micromechanical component. Said electrode comb (52, 54) is designed such that at least two electrode fingers (52a, 54a) are mounted on a first fastening part (52b, 54b) at a first end while being mounted on a second fastening part (52b, 54b) at a second end lying opposite the first end. The invention additionally relates to a micromechanical component comprising a stator electrode comb (54) and an actuator electrode comb (52) between which a voltage (U) can be applied such that the actuator electrode comb (54) can be rotated about an axis of rotation (56) of the actuator electrode comb (52). The axis of rotation (56) of the actuator electrode comb (52) vertically penetrates at least one surface of an electrode finger (54a) of the stator electrode comb (44, 54). The invention further relates to a method for producing an electrode comb (52, 54) and a method for producing a micromechanical component.
Abstract:
A microelectromechanical (MEM) apparatus (10) is disclosed which has a platform (14) that can be elevated above a substrate (12) and tilted at an arbitrary angle using a plurality of flexible members (16) which support the platform (14) and control its movement. Each flexible member (16) is further controlled by one of more MEM actuators (18) which act to bend the flexible member. The MEM actuators (18) can be electrostatic comb actuators (34) or vertical zip actuators (80) or a combination thereof. The MEM apparatus (10) can include a mirror coating (24) to form a programmable mirror for redirecting or switching one or more light beams (200) for use in a projection display. The MEM apparatus (10) with the mirror coating (24) also has applications for switching light beams between optical fibers for use in a local area fiber optic network, or for use in fiber optic telecommunications or data communications systems.
Abstract:
A method for monitoring includes providing a device (64) including a first part (46) and a second part (72) and a movable joint (70) connecting the first part to the second part. An electrical characteristic of a conductive path (80) crossing the movable joint is measured, and a remedial action is initiated in response to detecting a change of the electrical characteristic.
Abstract:
A micro-electro-mechanical-system (MEMS) mirror device includes a mirror component that is capable of moving upon electrostatic actuation. The MEMS mirror device also includes one or more electrostatic actuators providing electrostatic actuation. The electrostatic actuators having plates disposed approximately perpendicular to the mirror component. The plates are disposed to define a gap between the plates that decreases along a direction perpendicular to a surface of the mirror component.
Abstract:
A thin film actuated mirror is disclosed having a substrate (16), a deformable structure (12) mounted to the substrate (16), and a mirror surface (17) interconnected to the deformable structure such that the mirror surface tilts in response to the deformation of the deformable material layer. The deformation occurs due to the effective strain gradient across the monomorph thickness which is accomplished by varying the electric field across the thickness or the strain parameter across the thickness. The deformable structure (12) includes an active material layer (18) fabricated from a semi-conductive ferroelectric ceramic material and two metal electrodes, each of the electrodes being mounted on opposing surfaces of the active material layer (18), wherein an electrical signal applied across the active material layer (18) between the electrodes causes deformation of the active material layer (18). Alternatively, the active material layer (18) may be fabricated from two layers, an upper layer (36) of an active piezoelectric material and a lower layer (38) of an inactive material.
Abstract:
A thin film actuated mirror for an actuated mirror array includes a pedestal (14), a piezoelectric structure (12) mounted to the pedestal (14), and a mirror surface (32) interconnected to the piezoelectric structure (12) such that the mirror surface (32) tilts in response to the deformation of the piezoelectric material layer (18). The pedestal (14) includes a first pedestal section (38) and a second pedestal section (40), and the piezoelectric structure (12) is divided into a first portion (42) and a second portion (44). The piezoelectric structure (12) includes a piezoelectric material layer (18) having two opposing surfaces, and two metal electrodes, the electrodes being mounted on opposing surfaces of the piezoelectric material. The piezoelectric structure first portion (42) is mounted to the first pedestal section (38) at a proximal end (28) of the piezoelectric structure (12) and the second portion (44) is mounted to the second pedestal section (40) at a distal end (30) of the piezoelectric structure (12).
Abstract:
Die vorliegende Erfindung offenbart eine Mikrospiegelanordnung mit einem federnd aufgehängten Spiegel und mit mindestens einer Anschlageinrichtung, welche ausgebildet ist, bei einer Bewegung des Spiegels in einer vorgegebenen Richtung aus dessen Ruheposition heraus, eine Bewegung des Spiegels einzuschränken. Ferner offenbart die vorliegende Erfindung eine Projektionseinrichtung.
Abstract:
미소입자 처리 장치는 기판 및 적어도 하나의 유로를 포함한다. 상기 기판은 중심 영역을 가지며, 상기 중심 영역에 대하여 회전 가능하다. 상기 유로는 상기 기판에 구비되어 상기 중심 영역으로부터 반경 방향으로 연장하며, 상기 기판의 회전에 의한 원심력을 사용하여 미소입자를 포함하는 유체를 입력 단부로부터 출력 단부로 이송시킨다. 상기 유로의 상기 입력 단부와 상기 출력 단부 사이에 상기 미소입자를 포획하기 위한 가변적 단면 형상들을 갖는 포획 영역이 형성된다.