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958 results about "Mirror mount" patented technology

A mirror mount is a device that holds a mirror. In optics research, these can be quite sophisticated devices, due to the need to be able to tip and tilt the mirror by controlled amounts, while still holding it in a precise position when it is not being adjusted.

Long delay and high TIS pulse stretcher

A method and apparatus for laser light pulse stretching is disclosed which may comprise a beam splitter in the path of a laser output light pulse beam; selected to pass a first percent of the energy of a first input pulse of the laser output light pulse beam along a laser output light pulse beam output path as a first output pulse and to reflect a second percent of the energy of the laser output light pulse beam into a first delayed beam; an optical delay path receiving the first delayed beam and returning the first delayed beam to the beam splitter in an orientation such that a third percent of the first delayed beam is reflected into the output path as a second output pulse and a fourth percent is passed into the optical delay path as a second delayed beam; the optical delay path receiving the second delayed beam and returning the second delayed beam to the beam splitter in an orientation such that the third percent of the second delayed beam is reflected into the output path as a third output pulse and the fourth percent of the second delayed beam is passed into the optical delay path as a third delayed beam; the optical delay path receiving the third delayed beam and returning the third delayed beam to the beam splitter in an orientation such that the third percent of the third delayed beam is reflected into the output path as a fourth output pulse; the first input pulse being a first pulse in a plurality of pulses output from a prior pulse stretcher, each of a plurality of succeeding input pulses comprising the output of the prior pulse stretcher resulting from the stretching of a narrow band laser light output pulse, forming successive first, second, third and fourth output pulses, the combination of which forms a pulse stretcher having an output with TIS of at least 200 ns. The optical delay path may be formed of a plurality of at least eight reflecting mirrors and contained in an elongated enclosure having first and second end plates mounting a first group of at least four of the at least eight reflecting mirrors mounted on the first mounting surface symmetrically about a center axis of the optical delay path and a second group of at least four of the at least eight reflecting mirrors mounted on the second mounting surface symmetrically about the center axis. The mirrors may be staggered in a predefined pattern, e.g., a circular pattern. The delay path may lie in a plurality of planes. The apparatus may be part of a laser system, part of a beam delivery system or an interface between the two.
Owner:CYMER INC

Interior rearview mirror assembly with polymeric components

An interior rearview mirror assembly for vehicles incorporates a rearview mirror mount, a rearview mirror, and a rearview mirror support. The support is pivotally attached to the mirror mount by a first pivot element, and to the rearview mirror by a second pivot element. The mirror mount, support, a rearview mirror housing, and the pivot elements are each formed by molding from polymeric material having a respective color. In various embodiments, the colors may all be substantially the same, such as black, gray, tan, brown, burgundy, green, or another color, or may be different. In one form, the rearview mirror housing includes at least one electrical accessory. Electrical conductors may extend through the pivot elements and mirror support to the rearview mirror housing to provide an electrical connection for the electrical accessory to the vehicle electrical system. The pivot elements preferably include ball pivot members and sockets on various of the mirror mount, support and rearview mirror housing, and may include surfaces for enhanced frictional resistance to pivotal movement. In one form, the rearview mirror mount preferably includes receiving members which release the assembly from a windshield attachment member when sufficient force is applied such as upon impact.
Owner:DONNELLY CORP

UV counterfeit currency detector

An ultraviolet (UV) detector for detecting and verifying the authenticity of documents placed therein and exposed to ultraviolet light and ambient (white light) backlighting. The UV detector includes a detector housing, and a viewing chamber having a viewing mirror mounted therein for viewing documents. The detector housing also includes a document insertion slot for inserting documents into the viewing chamber adjacent to the viewing mirror. The detector housing further includes an LED holder for holding one or more LED's therein to provide a source of UV light in the viewing chamber which is transmitted to the viewing mirror and to the documents for identifying UV activated features on the documents, including UV holographic images and/or UV activated inks on the documents that are illuminated. The user looks into the viewing chamber for viewing the UV activated features on the viewing mirror. Additionally, the detector housing includes a translucent member disposed therein for diffusing visible white light. The UV detector includes a printed circuit board (PCB) for holding at least one LED to provide a source of visible white light in the detector housing which is transmitted to the translucent member for diffusing the visible white light for identifying watermarks on the documents that are illuminated. The user looks into the viewing chamber at the viewing mirror which reflects the identified watermarks to the user. Also, the placement of the viewing mirror increases the illumination area of the 365 nm UV light source in order to reduce the size of the detector housing.
Owner:DRI MARK PRODS

High-precision large-caliber electric reflecting mirror frame based on orthogonal axis

The invention discloses a high-precision large-caliber electric reflecting mirror frame based on an orthogonal axis, relates to an electric reflecting mirror frame, and aims to solve the problems that the process of guiding the transmission direction of a large-caliber laser beam is not precise enough and is not easily controlled, and collimated guide and near-field adjustment for the laser beam are poor in flexibility. A rack is connected with a pitching shaft frame through a rotation shaft, the pitching shaft frame is used for adjusting pitching angles relative to the rack, the pitching shaft frame and the rotation shaft are connected with a deflection shaft frame, the deflection shaft frame is used for adjusting deflection relative to the pitching shaft frame, a transverse positioning barrier strip is close to the inner side surface of a transition frame, an axial positioning barrier strip is close to the inner side surface of a second positioning frame, a mini-driver output end of a pitching shaft micro-actuator is connected with the pitching shaft frame through a pitching connection block, and a mini-driver output end of a deflection shaft micro-actuator is connected with the deflection shaft frame through a deflection connection block. The high-precision large-caliber electric reflecting mirror frame is used for a light beam guide system of an inertial confinement laser fusion device or other optical path adjustment systems needing large calibers.
Owner:HARBIN INST OF TECH

Laser projection apparatus with liquid-crystal light valves and scanning reading beam

Laser lines at 635 nm or longer (ideally 647 nm) are preferred for red, giving energy-efficient, bright, rapid-motion images with rich, full film-comparable colors. Green and blue lines are used too—and cyan retained for best color mixing, an extra light-power boost, and aid in speckle suppression. Speckle is suppressed through beam-path displacement—by deflecting the beam during projection, thereby avoiding both absorption and diffusion of the beam while preserving pseudocollimation (noncrossing rays). The latter in turn is important to infinite sharpness. Path displacement is achieved by scanning the beam on the liquid-crystal valves (LCLVs), which also provides several enhancements—in energy efficiency, brightness, contrast, beam uniformity (by suppressing both laser-mode ripple and artifacts), and convenient beam-turning to transfer the beam between apparatus tiers. Preferably deflection is performed by a mirror mounted on a galvanometer or motor for rotary oscillation; images are written incrementally on successive portions of the LCLV control stage (either optical or electronic) while the laser “reading beam” is synchronized on the output stage. The beam is shaped, with very little energy loss to masking, into a shallow cross-section which is shifted on the viewing screen as well as the LCLVs. Beam-splitter/analyzer cubes are preferred over polarizing sheets. Spatial modulation provided by an LCLV and maintained by pseudocollimation enables imaging on irregular projection media with portions at distinctly differing distances from the projector—including domes, sculptures, monuments, buildings; waterfalls, sprays, fog, clouds, ice; scrims and other stage structures; trees and other foliage; land and rock surfaces; and even assemblages of living creatures including people.
Owner:TROYER DIANE
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