Abstract: An optical beam scanning system having a synthetic center of beam rotation. A front, primary intermediate and back mirrors having respective motors are provided to receive and redirect an optical beam. A controller is connected to orient the front, primary intermediate and back mirrors so that a beam received by the front mirror from a given direction is directed toward the primary intermediate mirror, by the primary intermediate mirror toward the back mirror, and by the back mirror so as to pass through a selected point spaced apart from the back mirror in one of a plurality of selectable different directions. A secondary intermediate mirror may be provided so as to receive the beam from the primary intermediate mirror and redirect it toward the back mirror. The beam may be directed thereby through a synthetic center of beam rotation.

Abstract: For a laser projection device, a dichroic component is disposed on a light emitting path of a laser array for receiving a first blue polarized light from the laser array. A 1/4 wave plate is disposed between a reflective component and the dichroic component and configured to receive the first blue polarized light from the dichroic component, generate a second blue polarized light, and emit the second blue polarized light to the reflective component; and further configured to receive the second blue polarized light reflected by the reflective component, generate a third blue polarized light, and emit the third blue polarized light to the dichroic component. The dichroic component is further configured to receive the third blue polarized light from the 1/4 wave plate and fluorescent light from a reflective fluorescent wheel, and output the third blue polarized light and the fluorescent light in a same light emitting direction.

Abstract: A projector and an illumination system are provided. A first light source module and at least one second light source module of the illumination system provide the first color beams and the second color beams respectively. The first light source module includes a first integrating element, a second integrating element, a plurality of first light emitting elements for providing a plurality of first sub-beams, a plurality of second light emitting elements for providing a plurality of second sub-beams, and a plurality of third light emitting elements for providing a plurality of third sub-beams. Each integrating element has a plurality of light reflecting regions and a plurality of light transmitting regions. The light transmitting regions of each integrating element are alternately arranged between the light reflecting regions of the corresponding integrating element.

Abstract: A light source device includes first and second laser light source units, a first reflective member, and a returning reflective member. The first and second laser light source units are disposed face-to-face, each of the first and the second laser light source units comprising a plurality of laser light sources arranged in an array. The first reflective member is disposed diagonally with respect to the light emitted from the first and second laser light source units, the first reflective member reflecting the light. The returning reflective member reflects the light emitted from the second laser light source unit and reflected by the first reflective member. The light emitted from the first laser light source unit and reflected by the first reflective member is parallel to, and in a same direction of travel as, the light emitted from the second laser light source unit and reflected by the returning reflective member.

Abstract: A wavelength conversion filter module and an illumination system are provided. The wavelength conversion filter module includes a carrier and a wavelength conversion filter unit. The wavelength conversion filter unit is located in a wavelength conversion filter region of the carrier, and the wavelength conversion filter unit includes a filter reflective device, a wavelength conversion device, and a first filter device disposed on the carrier in order. The first filter device is suitable for allowing the excitation beam to pass through. The wavelength conversion device is suitable for converting the excitation beam into a conversion beam. The conversion beam includes a specific color beam and a color beam other than the specific color beam. The filter reflective device is suitable for reflecting the specific color beam and absorbing the color beam other than the specific color beam. The reflected specific color beam passes through the first filter device.

Abstract: The present invention relates to a method and an apparatus for establishing residual stresses in objects, in particular in coated objects, and to a method and an apparatus for coating objects. The method comprises: impinging a surface (8) of the object (5) with laser light and generating a hole or a pattern of holes and/or locally heated points in the object (5); establishing the surface deformations by an optical deforming measuring method after the object (5) is impinged by laser light; establishing the residual stresses present in the object (5) from the measured surface deformations, wherein the generation of the hole pattern is carried out by an optical scanning apparatus which comprises an optical deflection and/or modulation arrangement for controllable deflection and/or modulation of the laser light, and/or a focusing arrangement for controllable focusing of the laser light.

Abstract: A light source apparatus, an illuminator, and a projector that output a reduced light beam flux in a direction roughly the same as the direction of the optical axis of an incident light beam flux. The light source apparatus includes a light source unit that outputs a light beam flux and a reduction system that includes a plurality of optical elements and reduces the cross section of the light beam flux. The optical elements each have first and second surfaces and first and second reflection surfaces and allow a corresponding light beam of the light beam flux to pass through the first surface, to be incident on the first reflection surface, to be sequentially reflected off the first reflection surface and the second reflection surface, and then to exit through the second surface to shift the optical path of the light beam in a first direction.

Abstract: A projection system includes a light source system that has a first light source for emitting first light, and a rotating color wheel that has at least a first fluorescent color band to absorb the first light and generate second light, and a second fluorescent color band to absorb the first light and generate compensation light. A light splitting device sequentially splits the first and second lights into light travelling along first and second light paths respectively. A first light modulation device modulates the light travelling along the first light path, and a second light modulation device for modulating the light travelling along the second light path. The first light is a primary light, the second light is a wide-spectrum light comprising at least two kinds of primary light, and a combined light of the first light and the second light comprises light of three primary colors.

Abstract: A light source apparatus includes a light source section that outputs first and second light beam fluxes, first and second polarization separation elements, a rotary diffuser plate that diffuses the first light beam flux and the second light beam flux, a first retardation film that converts the incident second light beam flux polarized in a first direction into the second light beam flux polarized in a second direction, and a wavelength conversion element on which the first light beam flux polarized in the first direction and the second light beam flux polarized in the second direction, are incident and which converts the first and second light beam fluxes into a third light beam flux that belongs to a wavelength band different from the wavelength band to which the first and second light beam fluxes belong. The third light beam flux passes through the first and second polarization separation elements.

Abstract: A method includes sequentially transmitting, through a beam steering device, light of a first color and light of a second color that is distinct from the first color. The method also includes applying a first voltage to the beam steering device for transmission of the light of the first color through the beam steering device; and applying a second voltage to the beam steering device for transmission of the light of the second color through the beam steering device. A device configured to perform the method is also described.

Abstract: An optical device is provided including a light-imaging component configured to focus light fed to the light-imaging component in at least one focusing spot, wherein the light fed includes at least one predefinable wavelength; and a conversion apparatus including at least one phosphor which is designed to convert light having the at least one predefinable wavelength into conversion light, wherein the conversion apparatus is arranged in such a way that the at least one phosphor is arranged in the focusing spot of the light-imaging component. The light-imaging component is configured to generate at least two focusing spots, and the conversion apparatus is arranged in such a way that the at least two focusing spots are positioned on the at least one phosphor.

Abstract: There is provided a projector including a plurality of laser diodes and a rectangular display device on to which light emitted from the plurality of laser diodes is shone, wherein the display device is disposed so that a direction of a major axis of an elliptic section of light emitted from each of the plurality of laser diodes becomes substantially parallel to a direction of longer sides of the display device.

Abstract: In described examples, one or more devices include: a light source to generate a beam of light; and optics to generate a spot of light in response to the beam of light. A color wheel revolves in a direction of rotation about an axis, so the spot of light illuminates an area of the color wheel. The spot of light has: a first width; and a second width wider than the first width and orthogonal to the first width. The first width is aligned tangential to the direction of rotation.

Abstract: A light source apparatus includes a light source, a disk held to be rotatable about a rotation axis, a wavelength conversion member arranged on the disk and configured to convert a wavelength of light from the light source, and a storage member configured to store the disk, wherein, inside of the storage member, a plurality of circumferential wall portions centering on the rotation axis is arranged integrally with the storage member.

Abstract: Disclosed wherein is an electrical faceplate, such as a cover for a wall outlet or light switch, that uniformly illuminates by receiving light into a transparent lightguide, homogenizing the light within the lightguide and scattering the homogenized light preferentially through a front surface. In one embodiment a faceplate comprises a substrate operable to cover an interface between an electrical junction box and a wall. The faceplate further comprises a light receiving surface operable to receive light from a light generation component (e.g. an LED) and transmit the light substantially parallel to a front surface, thereby promoting reflection at the front surface that homogenizes the light intensity within the faceplate and a portion operable to scatter light through the front surface. Several embodiments provide a faceplate with a lightguide to homogenize light through a process of total internal reflection to provide uniform illumination of the faceplate.

Abstract: A profile adjustment system displays, in a display device 115, an input field of a coordinate of an adjustment point P0 disposed on a color space, and includes an adjustment coordinate reception unit U1, an adjustment influence range reception unit U3, a linking configuration reception unit U4, a linking configuration display processing unit UA, an adjustment coordinate configuration unit U5, an adjustment influence range configuration unit U6, a whole adjustment influence range display processing unit UB configured to display, in the display device 115, a whole adjustment influence range including U3, U4, U5, and U6, and a profile adjustment unit U7 configured to adjust a profile based on all adjustment points P0 configured in the adjustment coordinate reception unit U1 and an adjustment point Qx added by the adjustment coordinate configuration unit U5.

Abstract: The present invention provides an apparatus for reducing blue light hazard, including: a blue light source and a control module. The control module regulates the blue light source to emit a blue intermittent illumination in a fixed frequency, and a user who looks into the blue light source may perceive visual persistence effect via the blue intermittent illumination. On the other hand, the present invention also provides apparatus for reducing blue light hazard that utilizes a polarizer or a phase adjusting device. Further, various methods for reducing blue light hazard are also provided.

Abstract: An illuminating unit of the disclosure includes a light source, a plurality of optical members for illumination that guide light from the light source to a predetermined optical path, and a polarization split element that transfers, to a predetermined illuminating position, a first polarized component included in the light guided to the predetermined optical path. One or more of the plurality of optical members for illumination have optical properties, for the light at a predetermined wavelength band outputted from the light source, of guiding the first polarized component to the predetermined optical path, and guiding a second polarized component that is different from the first polarized component toward a direction deviated from the predetermined optical path.

Abstract: An method for making a shielding assembly includes the steps of: forming a plurality of active layers, wherein each active layer of the plurality of active layers includes a base material and a fluorescent molecule; and forming a multi-layer laminate including the plurality of active layers.

Abstract: An illuminator includes first and second light emitting devices that emit first and second light beams, respectively, first and second lens arrays, a light ray combining element that combines at least parts of the first and second light beams having passed through the first and second lens arrays with each other to produce a combined light ray flux, a light collection lens, and a diffused light producing element on which the combined light ray flux having passed through the light collection lens is incident.

Abstract: Systems, devices and methods are described including providing infrared (IR) laser radiation to a Digital Micromirror Device (DMD) array and using the DMD array to spatially modulate the IR laser radiation. The spatially modulated IR laser radiation may then be projected to form a voxel array where each voxel of the array represents to a volume of air wherein the IR laser radiation has been focused sufficiently to cause air to ionize. The voxel array may then be spatially rotated.

Abstract: A light source device for a projection display apparatus includes a phosphor, an excitation light source, a surface-curved dichroic mirror, and a converging lens. The excitation light source is configured to output excitation light for exciting the phosphor. The surface-curved dichroic mirror has a curved surface and is configured to cause one of the excitation light from the excitation light source and fluorescence from the phosphor to pass through the curved surface and to cause the other of the excitation light and the fluorescence to be reflected on the curved surface. The surface-curved dichroic mirror is configured to cause the one of the excitation light and the fluorescence that passes through, neither to substantially converge, nor to substantially diverge, but converge the other of the excitation light and the fluorescence that is reflected.

Abstract: A projection display apparatus of the disclosure includes: a light valve (21) that modulates illuminating light (L1) on the basis of image data to output the modulated light; an illuminating unit (1) including a light source, and a plurality of optical members for illumination that generate the illuminating light (L1) on the basis of light from the light source to guide the illuminating light (L1) to the light valve (21); a projection lens (24) that projects the modulated light from the light valve (21) on a projection surface (30A), and allows detection light to enter from a direction opposite to a travelling direction of the modulated light; and an imaging device (22) that is disposed at a location optically conjugated with the light valve (21), and allows the detection light to enter through the projection lens. One or more of the plurality of optical members for illumination have optical property of reducing a noise component that affects the detection light and arises inside the illuminating unit (1).

Abstract: A laser-activated remote phosphor (LARP) target with a first layer having a first index of refraction and a phosphor dispersed within the first layer. A second layer which has a second index of refraction different from the first index of refraction and adjoins the first layer at an interface. The first index of refraction is higher than the second index of refraction such that the interface is configured to at least partially reflect light emitted from the phosphor.

Abstract: A projector includes an illumination system, an optical engine module and a projection lens. The illumination system includes an excitation light source group, a wavelength conversion element and a light combining element. A first light emitting element provides a first beam. The wavelength conversion element has a reflective area and a wavelength conversion area, which cut into the transmission path of the first beam by turns. The light combining element is disposed between the excitation light source group and the wavelength conversion element and has at least one first dichroic portion, at least one first reflective portion, and a first light combining surface facing the first light emitting element. The first dichroic portion and the first reflective portion correspond to the first and the third quadrant of the first light combining surface respectively. The projector and the illumination system have the advantages of lower cost and smaller size.

Abstract: An illuminator includes a light source that emits light containing a predetermined polarized light component, an optical element that transmits the light emitted from the light source, a polarization separation element on which the light having passed through the optical element is incident and which performs polarization separation on the incident light, and a temperature adjuster that adjusts the temperature of the optical element.

Abstract: A projection image display apparatus of the present disclosure is provided with a plurality of light sources, a light combiner combining light rays emitted from the light sources, a light modulation element modulating light emitted from the light combiner, and a projection optical system projecting an image emitted from the light modulation element. The light sources are each controlled by pulse width modulation signals, and duty ratios of the pulse width modulation signals to the light sources differ from each other at least in a part of a set range of an amount of light combined by the light combiner.

Abstract: A free-form lens (for example a phase modulator, lens or deformable mirror) may be made to reproduce a light pattern specified by image data. Source regions on the free-form lens are mapped to target regions areas on an image. Areas of the source regions are adjusted to vary the amount of light delivered to each of the target regions. Adjustment of the source areas may be achieved using a L-BFGS optimization which preferably incorporates smoothness and curl regularizers. Embodiments apply parallel processing to obtain control values for a free form lens in real time or near real time. Apparatus may process image data and display an image by controlling a dynamically variable free form lens using the processed image data.

Abstract: A system for illuminating a spatial augmented reality object includes an augmented reality object including a projection surface having a plurality of apertures formed through the projection surface. The system further includes a lenslets layer including a plurality of lenslets and conforming to curved regions of the of the projection surface for directing light through the apertures. The system further includes a camera for measuring ambient illumination in an environment of the projection surface. The system further includes a projected image illumination adjustment module for adjusting illumination of a captured video image. The system further includes a projector for projecting the illumination adjusted captured video image onto the projection surface via the lenslets layer and the apertures.

Abstract: An illumination unit includes: a light source section including a laser light source; an optical-path branching device outputting light incident from the light source section, by branching the light into an outgoing optical path of illumination light and other optical path; a photodetector receiving a light flux that travels on the other optical path; a control section controlling an emitted light quantity in the laser light source, based on a quantity of the light flux received by the photodetector; and a light-quantity-distribution control device disposed between the optical-path branching device and the photodetector on the other optical path, the light-quantity-distribution control device controlling a light quantity distribution in the light flux to be incident upon the photodetector.

Abstract: There is provided a mobile object including an imaging unit configured to capture a perimeter of the mobile object, a speaker configured to be capable of controlling directivity, a determination unit configured to determine whether the mobile object is in a driving mode, and a speaker control unit configured to control the speaker in the driving mode in a manner that predetermined audio is output toward a warning target that is recognized based on a captured image captured by the imaging unit, and to control the speaker in a non-driving mode in a manner that the predetermined audio is output in a non-directional way.

Abstract: A projection system and a control method therefor. The projection system includes: a light source assembly generating three primary color lights capable of being adjusted separately, and a light modulation assembly for modulating the three primary color lights. The method includes: based on the maximum greyscale value of each primary color image in each frame of source images, determining a greyscale adjustment ratio of at least one primary color image; based on the greyscale adjustment ratio, correspondingly adjusting the greyscale value of the primary color image; and based on the adjusted greyscale value of each primary color image and the output power of a primary color light corresponding to the primary color image, controlling the power-on duration of the light modulation assembly, so that the greyscale brightness of each primary color image of display images formed by the light modulation assembly is improved in the same proportion.

Abstract: The invention relates to methods for communicating within a communication system when re-configured from a source to a target uplink/downlink configuration. The invention is also providing mobile station for performing these methods, and computer readable media the instructions of which cause the mobile station to perform the methods described herein. Specifically, the invention suggests to perform PUSCH transmissions in response to Downlink Control Information, DCI, transmissions such that the source uplink/downlink configuration is applied to PUSCH transmissions relating to DCI transmissions received up to and including subframe N?6, a predefined uplink/downlink configuration is applied to PUSCH transmissions relating to DCI transmissions received during subframes N?5 to N?1; and the target uplink/downlink configuration is applied to PUSCH transmissions relating to DCI transmissions received from subframe N onward.

Abstract: A phosphor wheel is obtained by providing a phosphor on a rotatable substrate. The phosphor is formed of a plurality of small pieces, and the small pieces are arranged such that the phosphor has a ring shape, or a shape obtained by cutting away a portion from a ring shape about an axis of rotation of the substrate.

Abstract: A projector system comprising a laser light source, a collimating lens, a fly-eye lens, an integrating rod and a first modulator is disclosed. The light from a laser light source/fiber illuminates a collimator to substantially collimate the light and then is transmitted through a fly's-eye lens. The fly's-eye lens provides a desired angular/spatial light distribution for further processing to a first modulator of the projector system.

Abstract: The invention provides a projection apparatus and an illumination system. The projection apparatus includes an illumination system, a light valve, and a projection lens. The illumination system includes at least one laser light source, at least one light separating element, a wavelength conversion element, and a reflective element. The at least one laser light source is adapted to generate at least one laser beam, and the at least one laser beam is adapted to penetrate at least one first coating region of the light separating element. The wavelength conversion element is adapted to convert the laser beam from the light separating element into a converted beam. A second coating region of a reflective surface of the reflective element is adapted to reflect a portion of the laser beam from the wavelength conversion element, and the second coating region and the first coating region are adapted to reflect the converted beam. The portion of the laser beam and the converted beam constitute an illumination beam.

Abstract: An imaging device uses a grating to produce an interference pattern for capture by a photodetector array. Digital photographs and other image information can then be extracted from the pattern. An integrated processor locally supports this extraction by upsampling the captured interference pattern and deconvolving the upsampled pattern with an image-calculation parameter set that represents the grating at a resolution greater than that provided by the photodetector array. Deconvolving the upsampled pattern with a high-resolution parameter increases the resolution of extracted image information.

Abstract: A dust prevention and heat dissipation module for a color wheel and a light source system employing the same. The color wheel is sealed in a color wheel housing which has an air inlet and an air outlet. The dust prevention and heat dissipation module has a leading-in air channel in communication with the air inlet of the housing, a leading-out air channel in communication with the air outlet of the housing, a filtering device at an inlet of the leading-in air channel and an outlet of the leading-out air channel, and a fan which circulate the air via the leading-in air channel and the leading-out air channel. The air flow caused by the fan realizes heat dissipation of the color wheel, and the filtering device filters the air flowing through the color wheel housing, thereby reducing the amount of dust adhered to the surface of the color wheel.

Abstract: A light source device includes a first light source configured to emit excitation light in a first wavelength band and a wavelength conversion member having a plurality of surfaces and configured to convert the excitation light made incident from the first light source into converted light in a second wavelength band different from the first wavelength band. The wavelength conversion member includes a first surface on which the excitation light is made incident, a second surface opposed to the first surface, and a third surface that emits the converted light. A first reflection layer that transmits the excitation light and reflects the converted light is provided on the first surface.

Abstract: A wavelength conversion element according to an aspect of the invention includes a wavelength conversion section having a first surface, a reflection section having a reflection surface that reflects the fluorescence, a light-transparent bonding section that bonds the wavelength conversion section to the reflection section, and a refractive index interface which is provided between the first surface and the reflection surface and where a first medium and a second medium having refractive indices different from each other are in contact with each other. The refractive index of the first medium is higher than the refractive index of the second medium, and regarding the fluorescence traveling from the wavelength conversion section toward the reflection section, the angular distribution of the fluorescence having passed through the refractive index interface is narrower than the angular distribution of the fluorescence before passing through the refractive index interface.

Abstract: A light emitting wheel with eccentricity for dispelling a thermal boundary layer a light emitting material is provided, including a device comprising: a light emitting material; a cooling plate configured to cool the light emitting material, the cooling plate comprising a center-of-mass that is different from a center-of-rotation of the cooling plate; and, a hub located at the center-of-rotation of the cooling plate.

Abstract: A light source apparatus according to an aspect of the invention includes a light source array including a plurality of first light emitting devices and a plurality of second light emitting devices and a light branching element that causes a first light ray flux emitted from the plurality of first light emitting devices and a second light ray flux emitted from the plurality of second light emitting devices to travel in directions different from each other. The light source array is formed of a plurality of series circuits including a first series circuit and a second series circuit. The first series circuit and the second series circuit each include at least one of the plurality of first light emitting devices and at least one of the plurality of second light emitting devices.

Abstract: A light source unit according to an embodiment includes a device holder including a semiconductor light emitting device; a holder case including an opening where the device holder is disposed; and a dustproof member including a frame-shaped dustproof portion disposed in a gap between an outer periphery of the device holder and a wall surface of the opening.

Abstract: Configurations are disclosed for presenting virtual reality and augmented reality experiences to users. The system may comprise a spatial light modulator operatively coupled to an image source for projecting light associated with one or more frames of image data, and a variable focus element (VFE) for varying a focus of the projected light such that a first frame of image data is focused at a first depth plane, and a second frame of image data is focused at a second depth plane, and wherein a distance between the first depth plane and the second depth plane is fixed.

Abstract: A light illumination system that includes a light-diffusing optical fiber capable of multimode operation in a wavelength range from 300 to 3000 nm; and a laser light source comprising a control element and a laser diode having a cavity. The laser light source is configured to produce a laser light output in response to an injection current input. In addition, the laser light source is arranged in proximity to the light-diffusing optical fiber such that the laser light output is coupled into the optical fiber. Further, the control element is arranged to reduce speckle in the laser light output by modulating the injection current input at a modulation frequency of 30 Hz or greater.

Abstract: An illumination device includes a light source unit including a plurality of light source regions and outputting a first color light, a light branch element that reflects a light output from at least one light source region of the plurality of light source regions and branches the first color light into a first component and a second component traveling in different directions from each other, and a wavelength conversion element provided in an optical path of the second component and excited by the second component to output a fluorescent light containing a second color light. A position of the light branch element in an arrangement direction of the plurality of light source regions is adjustable.

Abstract: A display system includes a display screen, a plurality of subsystems, and a control system. The plurality of subsystems each generate an excitation beam that carries image information and a servo beam. For each subsystem, a servo feedback detector receives feedback light of the servo beam, detects the servo feedback mark, and produces a monitor signal. For each subsystem, a control unit is operable to adjust optical energies carried by the excitation beam using a scaling factor. Two adjacent subsystems of the plurality of subsystems are configured such that in operation the areas scanned by the excitation beams of the two subsystems overlap in an overlap region. The control system is configured to determine a range of the overlap region based on the monitor signals from the servo feedback detectors of the adjacent subsystems, and to determine the scaling factors for the excitation beams for the overlap region.

Abstract: In one aspect, a light source for a projection display includes: three laser light sources, a beam combining lens, and a phosphor wheel coated with phosphor powders. Each of the first and second laser light sources outputs a first light beam and a second light beams respectively, which are respectively reflected by the beam combining lens. The third laser light source outputs a third light beam, which is projected onto the phosphor powders of the phosphor wheel. The phosphor wheel is excited by the third light beam to output a fourth light beam such that the fourth light beam is projected onto the beam combining lens. The beam combining lens reflects the first and second light beams, and transmits the fourth light beam therethrough.

Abstract: In order to modulate different spectral components of a light beam independently of one another, the light beam is split into a plurality of spectral components which can be modulated at different locations of a spatial light modulator.

Abstract: An image processing apparatus includes: an acquisition unit that acquires a plurality of first images that correspond to a plurality of spatial frequencies on a one-to-one basis; and a generation unit that generates a second image by synthesizing the first images acquired by the acquisition unit.