Abstract: A pattern generation system includes an optical system and a rotor. The optical system is configured to project a laser image onto an optical scanner. The rotor has a plurality of optical arms arranged at a first angle relative to one another, and further includes the optical scanner. The laser image is sequentially reflected by the optical scanner into each of the plurality of optical arms of the rotor to generate a pattern on a workpiece.

Abstract: A telescope with internal scanner utilizing either a single optical wedge scanner or a dual optical wedge scanner and a controller arranged to control a synchronous rotation of the first and/or second optical wedges, the wedges constructed and arranged to scan light redirected by topological surfaces and/or volumetric scatterers. The telescope with internal scanner further incorporates a first converging optical element that receives the redirected light and transmits the redirected light to the scanner, and a second converging optical element within the light path between the first optical element and the scanner arranged to reduce an area of impact on the scanner of the beam collected by the first optical element.

Abstract: An illuminated position adjusting method used in optical scanning apparatus, suppressing deterioration of imaging spot shape on scanning surface, and preventing undesirable light from arriving at the scanning surface, to form high-quality image. The optical scanning apparatus includes: a common deflector for deflecting beams emitted from light source units; and imaging optical units each including at least one imaging optical element and at least one reflector which are disposed in optical path of beam deflected by the common deflector, and image the beam on scanning surface. In an optical path in which the largest number of the reflectors are disposed among the optical paths guided to the scanning surfaces, the reflector which is disposed optically closest to the scanning surface is rotated in sub-scanning direction, to adjust the illuminated position of the beam, which illuminates the scanning surface, on the scanning surface in sub-scanning direction.

Abstract: A light scanning unit by which misalignment in imaging caused by a scanning angle can be reduced. The light scanning unit includes a light source array device having a plurality of light sources, an imaging optics, and an optical deflection module. The plurality of light sources are used selectively in accordance with positions of light beams in a scanning direction on a to-be-scanned surface.

Abstract: A laser scanning system and method for scanning symbology targets such as barcodes. The scanning system in one embodiment includes at least one laser source and a pair of wobbling mirrors generally disposed towards opposite ends of a centrally-positioned rotatable mirrored spinner. In one embodiment, the central spinner is double-sided having reflecting surfaces on opposites sides thereof. Laser beams projected onto each wobbling mirrors are in turn redirected onto each reflecting surface of the double-sided rotating spinner which produces a pair of rotating scanning beams for reading a symbology target.

Abstract: The light scanning optical apparatus for reducing registration displacement during a temperature increase, includes: multiple light source units; a common optical deflector deflectively scanning light fluxes emitted from the multiple light source units; and first and second imaging optical systems facing each other across an optical direction, sandwiching the optical deflector, and guiding the light fluxes from the optical deflector to different scanned surfaces; and a housing member housing each of the first and second imaging optical systems. Among imaging optical elements constituting those imaging optical systems, two imaging optical elements disposed adjacently to the optical deflector include main scanning direction standard positioning portions disposed at different positions in a scanning direction in those imaging optical systems. The main scanning direction standard positioning portions are positioned with respect to a standard reception portion of the housing member.

Abstract: A lightweight, compact image projection module has a controller operative for causing selected pixels in a raster pattern to be illuminated to produce an image of high resolution of VGA quality in color. The controller has a video data channel for receiving video data from a host, and a control data channel for bidirectionally transmitting and receiving control data to and from the host. A plurality of input communication ports is provided on the controller. Each input communication port is operative for communicating the control data at a different communication standard. A selected one of the input communication ports having a communications standard matching the communications standard of the host is connected over the control data channel to the host.

Abstract: The optical scanning apparatus has at least two scanning units S1 and S2 which are arranged so as to oppose each other with a deflecting unit interposed therebetween. The scanning units include incident optical systems La and Lb that guide light beams emitted from light source units 1a and 1b to the deflecting unit 4, and imaging optical systems Ma and Mb that cause the light beams for scanning deflected on a deflecting surface of the deflecting unit to form images on surfaces 8a and 8b to be scanned. The two scanning units are configured such that the main scanning planes thereof including an optical reference axis C0 have different heights from a bottom surface 4c of the deflecting unit in the direction of the rotational axis of the deflecting unit.

Abstract: In an embodiment of the present invention, an OCT probe is configured by including: a thin and long substantially cylindrical sheath whose distal end is closed; an n-reflecting surface body, as an irradiating device, which has n reflecting surfaces (with n being an integer of three or more) and which is provided in a distal end portion of the sheath; a torque transmitting coil, as a rotating device, which is provided along the longitudinal axis of the sheath and which transmits rotational torque for rotating each of the reflection surfaces of the n-reflecting surface body about the longitudinal axis of the sheath; and n fibers (1) to (n), as an n-channel waveguide device, which are provided and fixed in the sheath in a side by side relationship with the torque transmitting coil.

Abstract: According to one embodiment, a projection system includes a color wheel operable to filter light into a passed component and a reflected component. The projection system also includes a digital micromirror device comprising a plurality of micromirrors each operable to receive the passed component and the reflected component. Each micromirror is selectively positionable to direct, at approximately the same time, the passed component and the reflected component to desired locations. The projection system also includes an optical system operable to direct the passed component and the reflected component from the color wheel to the digital micromirror device at approximately the same time.

Abstract: A scanning optical apparatus includes a plurality of rotatable polygonal mirrors for scanningly deflecting laser beams; a plurality of optical members provided across optical paths of the beams deflected by the rotatable polygonal mirrors; vibration detecting means for detecting vibration of at least one of the optical members during driving of the rotatable polygonal mirrors; phase control means for controlling a phase relation between the rotatable polygonal mirrors on the basis of an output of the vibration detecting means.

Abstract: A process for enhancing an illusion created by a mirror labyrinth containing a series of interreflective mirrors includes the placement of a rotatable mirrored stile rotating about a vertical axis within the mirror labyrinth to interact with the series of interreflective mirrors to enhance the illusion created by the mirror labyrinth. The rotatable mirrored stile preferably has a motor drive mechanism mountable to a floor or ceiling of a mirror maze. A polygonal post is mounted to the drive mechanism to define a rotational axis with the post defining from two to eight rotationally degenerate faces. At least one of the rotationally degenerate faces is mirrored.

Abstract: Particular embodiments relate generally to laser projection systems and, more particularly, to systems and methods of reducing the appearance of speckle in laser projection images. According to one embodiment, a laser projection system comprising a light source and scanning optics is provided. The scanning optics include a plurality of frame generating optics configured to scan the output beam across a given projection surface to generate an image frame. The frame generating actuators are spatially separated such that output beams scanned by the frame generating actuators illuminate each common pixel portion of the image frames at a different incidence angle. The scanning optics also include an actuator selector positioned in an optical path of the output beam and configured to direct the output beam towards a selected one of the plurality of frame generating actuators.

Abstract: A scanning beam projection system includes a two-mirror scanning system. One mirror scans in one direction, and a second mirror scans in a second direction. A fast scan mirror receives a modulated light beam from a fold mirror and directs the modulated light beam to a slow can mirror. The fold mirror may be formed on an output optic or may be formed on a common substrate with the slow scan mirror.

Abstract: An optical scanner, including a frame member; a pair of connection members near a coupling end with the frame member; a pair of elastic members connected with the frame member by the connection members; a mirror substrate supported by the pair of elastic members, the mirror substrate having a bending rigidity outward from the rotational axis for each area in accordance with a bending moment caused by oscillation, the mirror substrate having a slit at both connection ends with the pair of elastic members; and a piezoelectric element provided on each of the connection members, the piezoelectric element generating a torque for driving the mirror substrate oscillatable back and forth around the pair of elastic members as a torsion rotational axis.

Abstract: A light irradiation device irradiates a specimen in a flow channel with directional light. The light irradiation device includes a light source that emits the directional light, and an irradiation control unit that irradiates the specimen in the flow channel with light, obtains positional information of the specimen, and controls the irradiation of the directional light based on the positional information.

Abstract: A light refracting element formed in parallel plate shape is attached to a support shaft of a mirror holder, a semiconductor laser and a PSD are disposed at positions between which the light refracting element is sandwiched. The light refracting element is rotated by rotation of the mirror holder, and whereby a laser beam irradiation position is changed on a light acceptance surface of PSD. The laser beam irradiation position on a light acceptance surface corresponds to the mirror rotation position, so that the mirror rotation position and a laser beam scanning position in a target area can be detected based on an output from the PSD.

Abstract: A beam irradiation apparatus includes: an optical element which changes a travel direction of a laser beam by being rotated in a predetermined direction; an actuator which rotates the optical element in the direction; a refractive element which is disposed in the actuator and rotates in association with rotation of the optical element; a servo beam source which emits a servo beam to the refractive element; a photodetector which receives the servo beam refracted by the refractive element and outputs a signal according to a position where the servo beam is received; and a power adjustment circuit which adjusts emission power of the servo beam source. The power adjustment circuit adjusts the emission power so that a reception amount of the servo beam in the photodetector becomes constant based on an output signal from the photodetector.

Abstract: A light-beam-scanning system includes two counter-rotating prism wheels. Each prism wheel has a set of prisms at its periphery, selected so that prisms of equal half-angle deflections are sequentially aligned. A light transceiver structure directs a light beam parallel to the rotational axes of the prism wheels and at a distance from the rotational axes so that the light beam passes through the aligned prisms. A prism-wheel drive is operable to drive the prism wheels in opposite rotational directions.

Abstract: An image acquisition apparatus that uses optical coherence tomography includes a scanning unit provided within a light path that guides signal light to be incident on an examination object towards the examination object and configured to scan the signal light in a main scanning direction; and a control unit configured to control the scanning unit such that an integration time of an optical interference signal per pixel in at least one predetermined area other than opposite ends, in the main scanning direction, of an image acquisition region scanned by a plurality of main scan lines is increased relative to that of an area other than the predetermined area.

Abstract: A focused laser beam having an optical axis passes sequentially through a simple, positive lens, a pair of plane, parallel windows, and a second, simple, negative lens. Each of the plane, parallel windows are mounted to a galvanometer motor and positioned orthogonally to one another. The focused laser beam is therefore displaced in a controlled manner from the optical axis to enable laser machining of very precise geometric features over a large processing window. A field size of one thousand microns is achieved.

Abstract: Scanning beam systems, apparatus and techniques in optical post-objective designs with two beam scanners for display and other applications.

Abstract: Light from a single source is divided among several illumination arms, each of which directs light via a multimode fiber bundle from the source to the wafer location. The arms are arranged circumferentially around a common illumination region, so that the region is illuminated from several directions. For each arm, light exiting the fiber bundle enters a turning prism, reflects off the hypotenuse of the prism, and is diverged in one dimension by a negative cylindrical surface on the exiting face of the prism. The beam then reflects off an anamorphic mirror and propagates to the illumination region on the wafer. The beam has an asymmetric footprint, so that it illuminates a nearly circular region of the wafer when viewed at normal incidence. The fiber bundle is at the front focal plane in the meridional dimension. The illumination region is at the rear focal plane in both dimensions.

Abstract: A scanning optical apparatus includes two deflectors that are driven by motors to deflect laser beams. One of the deflectors is provided while inclined by about 10° from an attaching reference plane in an optical box, and the other deflector is provided in parallel with the attaching reference plane. An image forming apparatus provided with the image forming apparatus includes four photosensitive drums corresponding to Y, M, C, and K colors. In the image forming apparatus, the photosensitive drums corresponding to Y, M, C, and K colors are alternately irradiated with laser beam fluxes from the deflectors. Accordingly, the two photosensitive drums corresponding to the K and M colors are irradiated with one of the deflectors, and the two photosensitive drums corresponding to the C and Y colors are irradiated with the other deflector.

Abstract: A laser treatment apparatus is provided which is capable of irradiating a laser beam to the position where a TFT is to be formed over the entire surface of a large substrate to achieve the crystallization, thereby forming a crystalline semiconductor film having a large grain diameter with high throughput. A laser treatment apparatus includes a laser oscillation device, a lens for converging a laser beam, such as a collimator lens or a cylindrical lens, a fixed mirror for altering an optical path for a laser beam, a first movable mirror for radially scanning a laser beam in a two-dimensional direction, and an f? lens for keeping a scanning speed constant in the case of laser beam scanning. These structural components are collectively regarded as one optical system. A laser treatment apparatus shown in FIG. 1 has a structure in which five such optical systems are placed.

Abstract: In a laser display displaying a video by scanning a beam from a laser light source two-dimensionally on a screen, image quality is deteriorated markedly by speckle noises induced from coherency of the light source. A known method of oscillating the screen to remove the speckles has a problem that a large-scale device is necessary and the screen cannot be chosen without any restraint. A speckle pattern that is generated can be suppressed using a beam oscillating means that oscillates a light spot on the screen at a high speed, causing a viewer to perceive a time-mean image as not having speckle noises.

Abstract: A method of designing a backlight light guide for an autostereoscopic 3D display includes specifying a backlight having a light guide thickness and extractor angle and a light transmission surface having a predetermined width value and a predetermined length value. Then, the method includes selecting a plurality of design parameter value pairs, where each parameter value pairs includes a light guide thickness value and a prism angle value, and each design parameter value pair is different from each other. Then the method includes executing an ray tracing optical model on the light guide for each parameter value pair to calculate output data for each parameter value pair, the output data including a single pass light extraction efficiency value, an average minimum light angle value emitted from the second surface, and a maximum flux/minimum flux value emitted from the second surface; and selecting a parameter value pair based on the output data to manufacture the light guide for an autostereoscopic 3D display.

Abstract: A method for manufacturing a microscanner having a micro mirror is disclosed. Initially, a two-axis self-aligned vertical comb-drive microscanner is fabricated from a bonded silicon-on-insulator-silicon (SOI) silicon wafer. By depositing a thin film of aluminum on the surface, a SOI silicon wafer can provide about 90% reflectivity at 633 nm. A 2.5 ?m misalignment tolerance can be achieved for the critical backside alignment step. As a result, confocal images with 1 ?m resolution can be acquired using a microscanner having SOI silicon wafer mirrors.

Abstract: An optical scanner for providing a deviation of electromagnetic radiation wherein the deviation varies in time. At least a first Risley pair has a first pair of optical elements and a second Risley pair has a second pair of optical elements. The optical elements in the first Risley pair are arranged to counter-rotate at a first rotation rate. The optical elements of the second Risley pair are arranged to counter-rotate at a second rotation rate in a manner so that a desired time dependency of the deviation of the radiation is obtained.

Abstract: An optical pattern generator includes one or more multi-faceted rotating optical elements that introduce an offset that is rotation insensitive. The component that generates the offset is rotationally symmetric around the rotational axis of the optical element. Thus, as the optical element rotates, the effect of the offset component does not change. In addition, rotating optical elements may be designed to counteract unwanted optical effects of each other.

Abstract: A retinal scanning display device is disclosed which is configured to include: a light source emitting a light beam; a scanner scanning onto a viewer's retina the light beam emitted from the light source; a light exit at which the light beam scanned by the scanner exits the retinal scanning display device; and a pupil expanding element operable to expand an exit pupil of the retinal scanning display device. The pupil expanding element may be disposed at a position which is offset from an intermediate image plane occurring between the light source and the light exit, along and within an optical path defined between the light source and the light exit.

Abstract: An illumination system of a lithographic apparatus is disclosed that includes a first optical element to receive a radiation beam, the first optical element comprising first raster elements that partition the radiation beam into a plurality of radiation channels, and a second optical element to receive the plurality of radiation channels, the second optical element comprising second raster elements. For each of the radiation channels a raster element of said first raster elements is associated with a respective raster element of said second raster elements to provide a continuous beam path from said first optical element to an object plane. A filter is disposed in a path traversed by the radiation beam to create a desired spatial intensity distribution in a pupil of the illumination system, by, for example, reducing a transmittance of a selection of one or more of the radiation channels.

Abstract: In a display unit which makes coherent light perform scanning on a screen to display an image, it is necessary to rotate a polygon mirror at ultrahigh speed for display of a high resolution image such as HDTV, and therefore, a high-performance polygon mirror must be employed, and further, noise and power consumption during rotation of the polygon mirror cause problems. Mirrors for multiple reflection (6a) and (6b) are inserted in a coherent light scanning optical system, whereby plural scanning lines can be obtained while one plane of the polygon mirror (5) scans one line of coherent light, leading to reduction in the rpm of the polygon mirror.

Abstract: Optical pattern generators use rotating reflective axicon segments to produce images that can have different dimensions along the pattern direction compared to the cross pattern direction. Examples include both single axicon pattern generators and dual axicon pattern generators that independently control the image space relative aperture and thereby control the image dimensions in two orthogonal directions.

Abstract: Disclosed herein is a raster scanning-type display device using a diffractive light modulator. The diffractive light modulator includes a plurality of light sources, the diffractive light modulator, a plurality of illumination optical units, a combining unit, a Schlieren optical unit, and a scanning optical unit.

Abstract: A scanning beam assembly comprising: a beam generator to generate a beam of radiation, and two or more oscillating reflectors configured to deflect the beam in sequence, each reflector being driven to contribute an incremental deflection of the beam so as to achieve a desired scanning beam waveform, at least one oscillating reflector aligned to receive the beam from the beam generator and deflect the beam to a second oscillating reflector, each oscillating reflector operating in a sinusoidal mode having a frequency and amplitude, and a controller for controlling the phase and/or frequency and/or amplitude of the oscillation of the reflectors so as to provide a desired scanning beam waveform.

Abstract: A system and method for increasing display brightness in laser illuminated display systems. An illumination source comprises a light source to produce colored light and a scanning optics unit optically coupled to the light source. The scanning optics unit scans the colored light along a direction orthogonal to a light path of the illumination source. The scanning optics unit comprises a diffuser to transform the colored light in beams of colored light, a scan optics element positioned in the light path after the diffuser, the scan optics element to move beams of colored light in a direction orthogonal to the light path with distinct beams of colored light separated by unilluminated space, and a lens element positioned in the light path after the scan optics element, the lens element to convert an angular refraction of the beams of colored light into a spatial deflection.

Abstract: A beam-steering system having high positional resolution and fast switching speed is disclosed. Embodiments of the beam-steering system comprise a diffraction limited optical system that includes a reflective imager and two controllably rotatable MEMS elements. The optical system is characterized by a folded optical path, wherein light propagating on the path is incident on each MEMS element more than once. Each MEMS element imparts an optical effect, such as angular change, on the output beam. By virtue of the fact that the optical system is multi-bounce optical system, the optical effect at each MEMS element is multiplied by the number of times the light hits that MEMS element.

Abstract: An image forming apparatus includes a light source to emit a laser beam; a resonant scanning mirror, including a reflection surface to reflect the laser beam emitted from the light source, to scan the reflected laser beam by oscillating the reflection surface; at least one detector to detect the reflected laser beam during the scanning of the reflected laser beam, and generate a synchronizing signal each time the reflected laser beam is detected; and at least one light selection unit to restrict a path over which the reflected laser beam is incident on the at least one detector to a predetermined path.

Abstract: A three-dimensional input apparatus includes a lens L1 for converting angular information about light rays from a object, a focusing element L3 for focusing the light rays from the object to the vicinities of an array R of photoelectric elements, and a lens L2 for performing conversion into a real image near the surface of the focusing element L3. The lens L2 is present between the lens L1 and focusing element L3. The array R records light as image signal sequentially. A driver portion drives the optical system and scans light ray information about the object.

Abstract: A display device includes a laser light source, refraction means for refracting a laser beam emitted from the laser light source, and scan means for scanning the refracted laser beam by driving the refraction means. Further, in the display device, the scan means includes first scan means and second scan means that change a position of the refraction means with respect to the laser light source along two directions orthogonal to each other. Further, the refraction means includes first refraction means driven by the first scan means and second refraction means driven by the second scan means.