Abstract: An illumination system is disclosed, and such system may include a first light modulator (14) that modulates the phase of beamlets of light and generates phase modulated Gaussian beamlets of light (ABC), a light distributor (18) that transforms, the Gaussian beamlets of light to a homogenized rectangular pattern of light, and a second light modulator (56) that utilizes the phase modulated light to form an image.

Abstract: A light source device according to an embodiment of the present disclosure includes: a light source section; a rotating body; a motor; a housing; one or more lens groups; a lens holding section; and an adjusting mechanism. The rotating body includes a fluorescent light body. The fluorescent light body is excited by excitation light from the light source section to output fluorescent light. The motor drives the rotating body. The housing accommodates the rotating body. The one or more lens groups gather the excitation light from the light source section and direct the excitation light toward the rotating body. The lens holding section holds the one or more lens groups. The adjusting mechanism adjusts a distance between the rotating body and the one or more lens groups.

Abstract: A light-source device includes an excitation light source; an optical element having a reflecting surface to reflect first colored light emitted from the excitation light source; and a wavelength conversion unit including a waveform conversion member configured to convert at least a portion of the first colored light reflected by the optical element and incident on the wavelength conversion unit, into second colored light having a wavelength different from a wavelength of the first colored light and emit the second colored light. A point P does not intersect with a light flux Q where the point P is a center of the first colored light on the reflecting surface of the optical element and the light flux Q is a light flux of the first colored light emitted from the wavelength conversion unit.

Abstract: Embodiments provide grade annunciator systems that allow a lumber workpiece traveling in a workflow path to be labeled with a projected image that conveys information about the grade, a cut line, and/or the location of a defect in the workpiece. In some embodiments, the system includes a conveyor configured to convey lumber workpieces in a workflow path, and a projector or series of projectors configured to project an image or symbol onto a surface of the workpiece, wherein the image or symbol indicates grade, a cut line, and/or the location of a defect in the workpiece. Other embodiments are methods of labeling a lumber workpiece in a workflow path, the methods includes conveying the lumber workpiece along the workflow path, and projecting an image or symbol onto a surface of the workpiece as it is conveyed along the workflow path.

Abstract: A light source module includes a first light-splitting element, a second light-splitting element, a first light source, a second light source and a third light source. The first light source is configured to emit first light having a first wavelength to the first light-splitting element in a first optical path direction. The second light source is configured to emit second light having the first wavelength to the second light-splitting element in a second optical path direction opposite to the second optical path direction. The third light source is configured to emit third light having a second wavelength in a third optical path direction substantially perpendicular to the first optical path direction. The first light source includes a first reflective layer, the second light source includes a second reflective layer, wherein the first reflective layer and the second reflective layer are configured to reflect light having the first wavelength.

Abstract: A head up display assembly includes an optical system (52) and a transmissive display. A light source is configured to projected a light through the transmissive display. A diffuser (64) is located between the optical system and the transmissive display (62).

Abstract: A virtual reality or augmented reality vision system including: a first emission module, emitting light in the visible range; a second emission module, emitting light in the infrared range; an infrared-sensitive photodetection module; and a micromirror array. Each micromirror is capable of assuming a first position and a second position. Each micromirror of the micromirror array is configured to, in its first position, receive light from the first emission module and reflect it along an axis of interest. Each micromirror of the micromirror array is configured to, in its second position, receive light from the second emission module and reflect it substantially along the axis of interest, and receive light propagating along the axis of interest and reflect it towards the photodetection module.

Abstract: Provided are an AR display method, an AR display apparatus and an AR display device, the device including: a display assembly used for displaying a virtual content, an optical assembly, and a micro mirror array coupled to the optical assembly; the micro mirror array is located on a propagation path of light emitted from the display assembly.

Abstract: A projection system includes a first optical system, a second optical system including an optical element and disposed on the enlargement side of the first optical system, and a deflector disposed between the first optical system and the second optical system and deflecting the optical path. The optical element has a first transmissive surface, a reflection surface disposed on the enlargement side of the first transmissive surface, and a second transmissive surface disposed on the enlargement side of the reflection surface.

Abstract: The transparent windscreen display (100) has a multilayer structure comprising at least the following layers: a transparent substrate layer (110); a transparent adhesive layer (120); a transparent display module (130); and a transparent protective layer (140). The display module (130) is configured to have a plurality of pixel units or pixel array units with an inter-pixel space therebetween. There is a predetermined distance (d) between the adjacent pixel units or pixel array units in both longitudinal and transversal directions of the display module (130), said distance being about 20-80% of the width of one pixel unit. The inter-pixel space is filled with a transparent material and involves flexible electric conductors for electrically connecting the adjacent pixel units or pixel array units.

Abstract: A combiner assembly for a ceiling mounted projection head up display system for an aircraft cabin has an optical combiner (10), and a support mechanism (30, 32, 35) for supporting the optical combiner to be movable between an operational position and a stowage position, above the user, and laterally displaced, and facing an underside of the projector assembly by means of a lateral component of movement and a rotation component to reach the stowage position under the projector assembly (20). Such a two axis movement can make better use of limited headroom in cabins such as those of small aircraft, by enabling a stowage location offset to one side of the line of sight, while providing sufficient clearance from the user's head and from cabin structure, during the movement and/or when in the storage position.

Abstract: The present disclosure provides a broadband cascaded splitting film array waveguide and a display system comprising the same. The cascaded splitting film array waveguide includes a plurality of glass substrates and a splitting film array, each film of the splitting film array is sandwiched between two adjacent glass substrates and consists of a plurality of H coatings and L coatings alternately arranged in sequence, wherein the H coatings are coatings made of a high refractive index material, the L coatings are coatings made of a low refractive index material, each film of the splitting film array has an even number of coatings, and thicknesses an, pn of the coatings of the film are selected based on the band width and angle of the light beam.

Abstract: A projection method, which is executed by a projection device, for projecting drawing data for a building onto a projection plane of the building under construction includes: measuring a distance from each of three or more points which are not aligned in a straight line and are on either of two non-parallel straight lines on the projection plane to the projection device using a distance meter included in the projection device; and projecting the drawing data onto a projection position on the projection plane which is determined based on the distance measured and the angle of the distance meter at the time at which the distance is measured.

Abstract: An illumination system configured to provide an illumination beam is provided and includes a light-source module and a first and a second wavelength conversion devices. The light-source module provides a first and a second excitation beams. The first wavelength conversion device is disposed on a path of the first excitation beam and has first regions and at least one first boundary disposed between every two adjacent first regions. The second wavelength conversion device is disposed on a path of the second excitation beam and has second regions and at least one second boundary disposed between every two adjacent second regions. The second regions correspond to the first regions. A time point when the first boundary gets into the path of the first excitation beam is different from a time point when the second boundary gets into the path of the second excitation beam. A projection apparatus is also provided.

Abstract: An adjustment mechanism is adapted to fix and adjust an optical element. The adjustment mechanism includes a housing, a fixing member and an elastic member. The housing is adapted for accommodate the optical element, and has a side wall, and the side wall has a locking portion protruding outward. The fixing member is disposed beside the side wall. The fixing member has a joint portion. The elastic member is disposed between the fixing member and the housing. The elastic member has a first end and a second end relative to the first end. The first end is combined with the joint portion, and the second end is abutted against the side wall. The adjusting part passes through the opening and connects with the locking portion. A projection device is further provided. The adjustment mechanism and the projection device of the invention may improve the assembly process and reduce costs.

Abstract: A directional backlit display device includes a light source module, a reflective narrow-angle diffuser, a backlit display device panel, an eye tracking device, and a controller. The diffuser includes a shaft and is utilized to reflect and uniformly diffuse the light to provide a uniform directional light beam. The backlit display device panel is included on the projecting optical path of the uniform directional light beam. The uniform directional light beam illuminates an image displayed on the backlit display device panel and projects to a projection area. The controller receives an eye position information from the eye tracking device and determines a coordinate. The controller determines a corrective projection area when the coordinate deviates from the projection area, and the drive module rotates the reflective narrow-angle diffuser around an axis of the shaft according to the corrective projection area, so the image projection area moves with the eye.

Abstract: A head-up display that projects a virtual image onto a display medium includes: a display that emits display light that forms an image to be displayed; and a first mirror that forms a virtual image on a side opposite an observer across the display medium by guiding an image displayed by the display to the display medium. The first mirror includes: a base having a first surface and a second surface on opposite sides of the base; and a reflection surface provided on the first surface. The base includes an end portion including a rough surface and provided between the reflection surface on the first surface and a perimeter of the base. A rib is provided on a rear side of the end portion.

Abstract: A phase modulator of the present disclosure includes a phase distribution arithmetic unit that generates, in a case of reproducing the same reproduction image over a plurality of frames or a plurality of subframes by a light phase modulation element, target phase distribution data that is allowed to reproduce the same reproduction image in at least two adjacent frames among the plurality of frames or in at least two adjacent subframes among the plurality of subframes and that changes phase distribution in the light phase modulation element.

Abstract: A projection system, including a projection target, a projection device, an image capturing device, and a processor circuit, is provided. The projection target includes a reflective surface and an anti-reflective film disposed on the reflective surface. The anti-reflective film defines a projection range. The image capturing device captures a first captured image containing the projection target. The first captured image includes an image of the anti-reflective film. The processor circuit determines a position and a shape of the anti-reflective film in the first captured image according to the first captured image. The projection device projects a projection image on the projection target. The projection device adjusts the projection image according to the position and the shape of the anti-reflective film, and correspondingly adjusts the projection image to the projection range. In addition, an image projection method is also provided.

Abstract: A light source module includes a light source, a fluorescent ring, a reflector, and a driving device. The light source is configured to emit light. The fluorescent ring has an inner surface. The reflector is configured to reflect the light to form a light spot on the inner surface. The driving device is configured to rotate the reflector to cause the light spot to move along a circular path on the inner surface.