Abstract:
A scanning device includes a substrate, which is etched to define an array of two or more parallel rotating members and a gimbal surrounding the rotating members. First hinges connect the gimbal to the substrate and defining a first axis of rotation, about which the gimbal rotates relative to the substrate. Second hinges connect the rotating members to the support and defining respective second, mutually-parallel axes of rotation of the rotating members relative to the support, which are not parallel to the first axis.
Abstract:
A method for producing a micromechanical component, and a micromechanical component, includes providing a substrate having first and second outer surfaces, the second surface facing away from the first surface; forming a through-hole through the substrate from the first outer surface up to the second outer surface; attaching an optical functional layer, on the second outer surface, to cover the through-hole; removing a first segment of the substrate on the first surface of the substrate so that there arises a third outer surface inclined relative to the second surface, the third surface facing away from the second surface, the inclined surface enclosing the through-hole; and separating the micromechanical component by separating a first part of the substrate, having the through-hole, and a second part, attached to the first part, of the optical functional layer from a remaining part of the substrate and a remaining part of the optical functional layer.
Abstract:
A MEMS based alignment technology based on mounting an optical component on a released micromechanical lever configuration that uses multiple flexures rather than a single spring. The optical component may be a lens. The use of multiple flexures may reduce coupling between lens rotation and lens translation, and reduce effects of lever handle warping on lens position. The device can be optimized for various geometries.
Abstract:
A microelectromechanical system (MEMS) device comprising a wafer including a MEMS device in a substrate of the wafer is mounted to a fluid dispenser stage. The MEMS device has a damping structure coupled to a suspended element and one or more fluid confinement structures. The suspended element is connected to a fixed part of the substrate by one or more flexures configured to permit movement of the suspended element relative to the fixed part of the substrate. The damping structure extends into a gap between the suspended element and fixed part of the substrate. The fluid confinement structures permit movement of the damping structure within a limited portion of the gap and confine a viscoelastic fluid to the limited portion of the gap. A viscoelastic fluid is deposited onto the wafer in an area of the wafer configured to communicate the viscoelastic fluid into the limited portion of the gap.
Abstract:
A microelectromechanical system (MEMS) device includes a substrate, a suspended element and a damping structure connected to the suspended element and one or more fluid confinement structures. The suspended element is connected to a fixed part of the substrate by one or more flexures configured to permit movement of the suspended element relative to a fixed part of the substrate. The damping structure extends into a gap between the suspended element and the fixed part of the substrate. The damping structure includes one or more winglets that protrude over a recessed portion of the fixed part of the substrate. The fluid confinement structures are formed by the recessed portion of the fixed substrate and are configured to permit movement of the damping structure over the recessed portion of the substrate and confine a viscoelastic fluid to the limited portion of the gap underneath the winglets.
Abstract:
A LIDAR system or a vehicle may include at least one processor configured to perform a method to detect objects in a field of view. The method may include controlling at least one LIDAR light source in a manner enabling light flux of the at least one LIDAR light source to vary over a plurality of scans of a field of view; receiving, from a group of detectors, a plurality of input signals indicative of reflections of light projected from the field of view; detecting a possible existence of an object in the background area based on first input signals associated with a first scanning cycle; detecting a possible existence of the object based on second input signals associated with a second scanning cycle; and aggregating the first and second input signals to detect an existence of the object at an object-existence-certainty level higher than a threshold.
Abstract:
A MEMS based alignment technology based on mounting an optical component on a released micromechanical lever configuration that uses multiple flexures rather than a single spring. The optical component may be a lens. The use of multiple flexures may reduce coupling between lens rotation and lens translation, and reduce effects of lever handle warping on lens position. The device can be optimized for various geometries.
Abstract:
A micromirror device including a drive unit, which includes a movable drive element, which is situated in a first plane, and a guiding device, and a mirror, which is elastically coupled to the drive element and is situated in the idle position in a second plane, which is in parallel to the first plane, the guiding device being designed to guide a movement of the drive element on a straight line situated in the first plane. Furthermore, a corresponding projection device is described.
Abstract:
Systems and methods for a time-based optical pickoff for MEMS sensors are provided. In one embodiment, a method for an integrated waveguide time-based optical-pickoff sensor comprises: launching a light beam generated by a light source into an integrated waveguide optical-pickoff monolithically fabricated within a first substrate, the integrated waveguide optical-pickoff including an optical input port, a coupling port, and an optical output port; and detecting changes in an area of overlap between the coupling port and a moving sensor component separated from the coupling port by a gap by measuring an attenuation of the light beam at the optical output port, wherein the moving sensor component is moving in-plane with respect a surface of the first substrate comprising the coupling port and the coupling port is positioned to detect movement of an edge of the moving sensor component.
Abstract:
A microelectromechanical systems (MEMS) package includes a substrate extending between a first pair of outer edges to define a length and a second pair of outer edges to define a width. A seal ring assembly is disposed on the substrate and includes at least one seal ring creating a first boundary point adjacent to at least one MEMS device and a second boundary point adjacent at least one of the outer edges. The package further includes a window lid on the seal ring assembly to define a seal gap containing the at least one MEMS device. The seal ring assembly anchors the window lid to the substrate at the second boundary point such that deflection of the window lid into the seal gap is reduced.