Abstract: Optical systems have uses, such as in spectrometers, for directing a beam. A spectrometer, for example, utilizes an optical system for directing an incident beam toward a sample and receiving a spectroscopy signal from the sample. In various implementations, for example, an optical system may be further configured to move a beam with respect to a target, such as a sample, and still provide a home position where the beam is directed in a stationary configuration. A self-homing (e.g., self-centering) optical system may provide a “home” position in which the beam is directed in a first stationary mode while still allowing a focused beam to be moved with respect to a target in a second dynamic mode.

Abstract: A polyvinyl alcohol film comprises a vinyl alcohol-based polymer, wherein, when the polyvinyl alcohol film being measured by a solid echo method using pulse NMR at 60° C. for waveform separation of a free induction decay curve of 1H spin-spin relaxation into three curves derived from three components a component A, a component B, and a component C in order of short relaxation time, the component A has a resulting relaxation time of 0.0070 milliseconds or more and 0.0092 milliseconds or less, and a resulting component ratio of 20% or more and 50% or less.

Abstract: An actuator for driving a reflector includes a movement frame, a first support frame, a first drive coil, a first rotation guide and a first ball. The movement frame includes a reflector configured to reflect or refract light to a lens and a first magnet. The first support frame is configured to provide a space of the movement frame to move. The first drive coil is configured to generate an electromagnetic force in the first magnet to rotationally move the movement frame in a first direction based on the first support frame. The first rotation guide is arranged between the movement frame and the first support frame and has an arc shape so that the movement frame rotates in the first direction. The first ball is arranged inside the first rotation guide, wherein a center of curvature of the first rotation guide corresponds to a center of rotation of the reflector.

Abstract: A bicycle mirror device is provided for rear viewing of traffic when a bicycle rider is in different riding positions. The bicycle mirror device includes a mounting bracket, attached to a bicycle helmet or eye glasses, and mirrors pivotally mounted to the mounting arms. The mounting arms may be attached to the helmet or eye glasses through an extension arm connected to the helmet or eye glasses through a quick-connect system. A method for using the bicycle mirror device includes mounting the mirror device on a helmet or eye glasses, rotating a first mirror to view a first rear-view angle for a cyclist in a low riding position, rotating a second mirror to view a second rear-view angle for the cyclist in an upright riding position, and viewing a plurality of rear view angles without readjusting the first or second mirror.

Abstract: A compound prism module is provided, including a first prism and a second prism. The first prism includes a first light-incident surface, a first reflecting surface, and a first light-emergent surface connected to each other, where the first light-incident surface and the first light-emergent surface are connected to each other on a first side edge. The second prism includes a second light-incident surface, a second reflecting surface, and a second light-emergent surface connected to each other, where the second light-incident surface and the second light-emergent surface are connected on a second side edge. The first light-incident surface and the second light-incident surface are connected to each other and are coplanar, the first reflecting surface and the second reflecting surface are connected on a third side edge, there is a spacing between the third side edge and a connection between the first light-incident surface and the second light-incident surface.

Abstract: The invention comprises a hands-free, adjustable telescoping magnifying mirror. The mirror may have a first reflective surface and a second reflective surface and can be secured to a horizontal or vertical surface using a suction cup base or can be hung over a door or ledge using a retractable hanger bracket. A telescoping rod is attached to the suction cup base. The mirror may be extended from the base by extending the telescoping rod and the mirror assembly can stand freely without falling over, whether the suction cup base is engaged or not. Additionally, one or more light sources may be disposed at a periphery of the first reflective surface or second reflective surface.

Abstract: An improved mirror-based assembly is provided. The mirror-based assembly has at least one mirror panel, at least one support member, and at least three connection regions between the at least one support member and the at least one mirror panel, comprising at least a first connection region comprising a miter joint connection region, at least a second connection region comprising a non-miter joint connection region, and at least a third connection region, wherein the at least one mirror panel is connected to the at least one support member to minimize thermal expansion or contraction of the at least one mirror panel and a method for assembling the same.

Abstract: An optical sensing device adopted to use structured light to detect an object is provided. The optical sensing device includes a structured light projector and a sensor. The structured light projector includes a light source and at least one beam multiplication film. The light source is configured to emit a light beam. The at least one beam multiplication film is disposed on a transmission path of the light beam and is made of anisotropic refractive index material, wherein a plurality of separated light beams are produced after the light beam from the light source passes through the at least one beam multiplication film, so as to form the structured light. The sensor is configured to sense the structured light reflected from the object. Besides, a structured light projector is also provided.

Abstract: Cross-view mirrors for buses and other vehicles which provide modified image sizes. The mirror assemblies have lens members created from the shape of a portion of an elliptical or circular toroid volumetric shape with an elliptical or circular cross-sectional shape. A first embodiment has an elliptical toroid volumetric shape with an elliptical cross-sectional shape. A second embodiment has an elliptical toroid volumetric shape with a circular cross-sectional shape. A third embodiment has a circular toroid volumetric shape with an elliptical cross-sectional shape.

Abstract: The present invention relates to a vision adjustment mechanism, comprising a first part and a second part pivotably arranged thereto. The first part has a trough, into which a head part at least partially complementary to said trough can be inserted, forming at least one clamping gap between the trough and the head part. The second part has at least one clamping part, which is formed to be complementary to the clamping gap and can be arranged in the latter such that the second part is fixed to the first part to be pivotable thereto. The fixing means is formed in such a way that it biases the head part in the direction towards the first part for fixing the two parts, and it fixes the second part against rotation relative to the first part. The invention also relates to a mirror unit having such a vision adjustment mechanism.

Abstract: A system for fastening a mirror to a support is disclosed including intermediate structures, for example bipod structures. At least some of the intermediate structures are provided with torsion devices making it possible to at least partially compensate for optical aberrations of an instrument that includes the mirror. Each torsion device may comprise an elastic element and a variator. The variator is designed to control a deformation of the elastic element, resulting in a torque which is applied to the mirror.

Abstract: An adjustable beam directing optical system for a focused laser differential interferometer (FLDI) instrument according to various aspects of the present technology may include an optical half waveplate to achieve an incident linear polarization orientation with equal components of laser intensity aligned to the vertical and horizontal axis of the optical system, and an optical prism for splitting these components of an incident laser beam into two orthogonally-polarized beams equally about an optical axis of the FLDI instrument. A series of beam realignment devices positioned downstream of the optical prism are configured to selectively direct each beam to a predetermined location.

Abstract: A mirror assembly for a work vehicle includes an elongated support beam, a detent joint connected to the elongated support beam, at least one support arm rotationally connected to the detent joint, at least one mirror connected to the at least one support arm, and an actuator for adjusting a position of the at least one mirror relative to the elongated support beam. The detent joint includes a detent bracket which is rotatable about the axis of rotation. The actuator is connected in between the elongated support beam and the detent bracket such that the at least one support arm is rotatable about the axis of rotation by the actuator.

Abstract: A cosmetic mirror, includes a supporting frame, a mirror body, and a power-on mechanism. At least one light source component is disposed in the mirror body, and the mirror body is connected with the supporting frame. The mirror body includes N mirror surfaces, N is a number greater than or equal to one, each of the mirror surfaces includes a light transmitting region, and each of the light source components is disposed in the mirror body and corresponds to the mirror surfaces in a one-to-one manner. The power-on mechanism includes a power-on fixing assembly and a power-on movable assembly. When any one of the mirror surfaces is rotated to a front side, one of the light source components with respect to the one of the mirror surfaces rotated to the front side of the cosmetic mirror is lightened, and the remaining light source components are turned off.

Abstract: This invention refers to a fixation assembly corresponding to the mounting structure of an wing mirror, where such mounting is carried out in such a way that one part of the fixation assembly, the mirror actuator, is mounted on another part of the assembly, which is the bracket that forms part of the mounting base of the said assembly, which is attached to the door/body of the vehicle by inserting the rotation shaft into the bracket, being able to rotate the base of said rotation shaft inside the bracket and making its fixed positioning at one point in its rotation and blocking the further rotation to prevent its exit from said fixed position.

Abstract: In one method, a display source aligned with an illumination prism assembly is displaced along a displacement axis to adjust the distance between the display source and a collimating prism assembly. The display source, the illumination prism assembly, and an illumination module are translationally moved in unison in a plane normal to the displacement axis. In another method, a component of an optical device is coupled to a mechanical assembly at a known orientation. The mechanical assembly has a test pattern at a known orientation. An image sensor is aligned with the test pattern, and the image sensor captures an image of the test pattern. The captured image is analyzed to determine an estimated orientation of the test pattern. An orientation parameter of the image sensor is adjusted based on a comparison between the known orientation of the test pattern and the estimated orientation of the test pattern.

Abstract: The invention relates to an optical arrangement and a method for correcting centration errors and/or angle errors in a beam path. The beam path here comprises an optical compensated system in which at least two optical elements are present and aligned relative to one another such that imaging aberrations of the optical elements are compensated. According to the invention, a correction unit is arranged in an infinity space of the beam path and between the at least two optical elements, wherein the correction unit changes the propagation direction of radiation propagating along the beam path and the correction unit either has a reflective surface or is embodied to be transmissive for the radiation. The correction unit is movable such that the angle of a change in the propagation direction can be set.

Abstract: A side view mirror assembly includes a base frame configured to couple to a bracket that is connected to a vehicle static structure. The base frame interfacing with the bracket through a guide that is at least partially received within a pocket when the base frame is coupled to the bracket. A mirror housing assembly is adjustably supported by the base frame.

Abstract: The present disclosure provides a component, such as a MEMS mirror or other generally disc-shaped component, having a variable mesh pattern across a backside surface thereof. The variable mesh includes ribs having a first thickness near a center portion or axis of rotation of the components, and a second narrower thickness at portions farther from the center or axis of rotation.

Abstract: There is provided an optical system, including a light-transmitting substrate having at least two major surfaces parallel to each other edges, and an optical device for coupling light into the substrate by total internal reflection. The device includes a polarization sensitive reflecting surface.