Abstract:
A mirror support includes a first rod in which one end is connected to an arm at a position closer to a side of a first pad fixed to the mirror with respect to a second pad fixed to the mirror while the other end stretched and inclined onto the side of first pad from the position connected is connected to a support structure; a first-rod elastic body that is an elastic body constituting the first rod; a second rod in which one end is connected to arm at a position closer to a side of second pad with respect to first pad while the other end stretched and inclined onto the side of second pad from the position connected is connected to the support structure; and a second-rod elastic body that is an elastic body constituting the second rod.
Abstract:
A frame for optics used in interferometers that may include different materials having substantially similar, identical, or as close as practicable coefficients of thermal expansion from the material(s) used to make the beamsplitter and/or compensator without warping, bending, tilting or distorting the optics. The beamsplitter and/or compensator are mounted onto the frame of the interferometer using a three-point method of mounting, preferably using three pins for each component. Preferably, the pins are made of the same material as the beamsplitter and compensator, and all three components are made of Potassium Bromide (“KBr”) or Calcium Fluoride (“CaF2”) such that the optic instrument can operate to scan into the mid or far infrared. Stability in optical alignment is therefore achieved without requiring the optic instrument include only one material. The invention provides stability in situations where it is not possible to utilize a single material for every component of the interferometer.
Abstract:
A lighted exterior rearview mirror system includes an exterior rearview mirror assembly including a reflective element and an electrically-operable actuator. The exterior rearview mirror assembly includes a breakaway joint assembly. The reflective element has an electrically powered heater operable to remove ice or dew from the reflective element. The exterior rearview mirror assembly includes a turn signal indicator lamp that has a light source and a lens. The lamp is included in the exterior rearview mirror assembly and unaffected by operation of the actuator. The breakaway joint assembly includes a wire-way through which a wire cable passes. The wire cable includes wires for operating the actuator, the heater and the lamp. The lens of the lamp has a portion that faces rearward of the vehicle and a portion that wraps around an outward side of a casing of the exterior rearview mirror assembly.
Abstract:
A mirror module for fastening to a structural element, comprises a mirror arrangement that includes at least one mirror stack and a first receiving device for holding the mirror arrangement. Each of the at least one mirror stack comprises at least one individual mirror made of a first material. The first receiving device is made of a second material which has a coefficient of thermal expansion adapted to the first material. For fastening the mirror module to the structural element, a second receiving device made of Invar is provided which holds the first receiving device of the mirror module.
Abstract:
The invention provides a method of preparing a light-weight base body of a reflecting mirror such as a mirror in a reflecting astronomical telescope, which is very stable not only thermally but also mechanically and is highly resistant against adverse environmental influences. The mirror base is composed of a porous foamed disc body of fused quartz glass or high-silica glass sandwiched by two plates of fused quartz glass or high-silica glass, of which one is made from transparent glass and serves to provide an optical surface having flatness or a specified curvature, and the side surface of the porous foamed disc body is protected against environmental influences by providing an air-tight sealing layer formed from a silicone rubber-based sealing agent or a thin sheet of fused quartz glass or high-silica glass.
Abstract:
A micromechanical mirror device has: a plate-shaped mirror having a reflecting surface for reflecting light, the reflecting surface being configured to be planar; a closed frame structure supporting the plate-shaped mirror and completely framing an edge of the plate-shaped mirror; a spring arrangement having at least two spring structures arranged mirror-symmetrically and connecting the closed frame structure to a stationary support structure, the spring arrangement being configured such that the closed frame structure and the plate-shaped mirror can be brought into a resonant vibrational state with respect to the support structure; and a connecting arrangement having at least four connecting spring structures arranged mirror-symmetrically and each connecting the plate-shaped mirror to the closed frame structure; the connecting spring structures being configured to be elastically deformable and arranged such that they deform back and forth in the resonant vibrational state so that the plate-shaped mirror is partially mechanically decoupled from the closed frame structure.
Abstract:
A temperature-control device is used for controlling the temperature of an optical assembly with at least one optical body, the temperature of which is to be controlled, with at least one optical surface which can be acted upon by a heat flow. The temperature-control device has a heat sink to receive a heat flow, which is emitted by the optical body or a transmission body which is in thermal connection with the optical body. The heat sink is arranged adjacent to a peripheral region of the optical surface. The temperature-control device has a heating mechanism with at least one heating body, which is arranged adjacent to the optical body. The heating body is connected via a physical heat bridge to the heat sink.
Abstract:
A light pulse multiprocessing unit has a half mirror and N delay elements, each having a refractive index n. The N delay elements are arranged on one side of the half mirror from one end of the half mirror toward the other end and have thicknesses Δ, 2Δ, . . . , 2N−1Δ different from each other, where Δ is the smallest thickness. The half mirror is placed in parallel in the proximity of an intermediate position between two mirrors and the N delay elements are arranged between one of the mirrors and the half mirror. Each of the N delay elements is a plane-parallel plate and is placed at an angle such that the direction of the normal line of the surface of the plane-parallel plate is different from a direction followed from one end of the half mirror toward the other end.
Abstract:
A method for producing an optical element or part of an optical element having a base body, including:—providing a mold body (21, 1000, 2000) which has a surface corresponding to the geometry of the optical element;—depositing a layer system (7) including at least one separation layer system (15, 1010, 2010) on the surface of the mold body (21, 1000, 2000);—electroforming a base body (4, 1030, 2030) on the layer system (7); and—detaching at least the base body from the mold body (21, 1000, 2000) at the separation layer system (15, 1010, 2010).
Abstract:
Briefly, in accordance with one or more embodiments, a MEMS device may comprise a coil frame having a drive coil disposed thereon and being supported by one or more suspension arms disposed along an axis of the coil frame, and a mirror platform having a mirror disposed thereon. The mirror platform may be coupled to the coil frame at connection points generally disposed along the axis in order to reduce deflection of the mirror platform to reduce stress on the mirror in order to maintain the relative flatness of the mirror surface. Furthermore, the mirror platform may include flexible members disposed near an edge of the mirror platform generally along the axis to isolate the mirror platform and the mirror from warping of the coil frame and twist of the suspension arms to further maintain the relative flatness of the mirror.