Abstract: Dual and multi-modulator projector display systems and techniques are disclosed. In one embodiment, a projector display system comprises a light source; a controller, a first modulator, receiving light from the light source and rendering a halftone image of said the input image; a blurring optical system that blurs said halftone image with a Point Spread Function (PSF); and a second modulator receiving the blurred halftone image and rendering a pulse width modulated image which may be projected to form the desired screen image. Systems and techniques for forming a binary halftone image from input image, correcting for misalignment between the first and second modulators and calibrating the projector system—e.g. overtime—for continuous image improvement are also disclosed.

Abstract: A phosphor wheel includes: a substrate having a first main surface, a second main surface opposite to the first main surface, and an open portion; a phosphor layer provided on the first main surface; and a fin provided on the second main surface. The fin is nearer a center of the substrate than the phosphor layer is, and the open portion is located between the phosphor layer and the fin.

Abstract: An illumination system includes a light integration rod and a light source module. The light integration rod has a light-in end, a light-out end opposite to the light-in end, and phosphor distributed between the light-in end and the light-out end. The light source module is configured to provide a laser beam to enter into the light integration rod through the light-in end thereof. The phosphor is used to convert the laser beam into a first color beam to form an illumination beam. The illumination beam then emits out from the light integration rod through the light-out end thereof. A projection apparatus using the aforementioned illumination system is also provided.

Abstract: A projection apparatus is provided with an optical device to diffuse a coherent light beam, an irradiation unit to irradiate a coherent light beam to the optical device, a color generator to perform wavelength conversion of and transmission of light beams in a first illumination zone, in a time division manner, at least one relay optical system to change a travel direction of the wavelength-converted light beam and a travel direction of a light beam to generate an illumination light beam which illuminates a second illumination zone, a spatial light modulator to generate a modulated image to the second illumination zone, and a projection optical system. The first illumination zone and the second illumination zone have a conjugate relationship. The color generator has a transmission portion to transmit the diffused coherent light beam, without diffusing the diffused coherent light beam.

Abstract: A light source apparatus includes a light source that outputs excitation light, and a rotating light emitting device in which a wavelength conversion element that emits light when irradiated with the excitation light is provided on a rotating disk. A spot of the excitation light on the wavelength conversion element has a shape that is long in a radial direction of the rotating disk and short in a circumferential direction of the rotating disk. Alternatively, an orthogonally projected length of the spot in the radial direction is greater than an orthogonally projected length of the spot in the circumferential direction.

Abstract: A projector includes a light source, an information acquisition section adapted to obtain information of designating light intensity of light emitted by the light source, an arithmetic section adapted to calculate time for which the light source can be used with the light intensity represented by the information obtained by the information acquisition section, and a notification section adapted to give notification of the time calculated by the arithmetic section.

Abstract: Projector display systems comprising a light dimmer and first modulator are disclosed. The light dimmer may comprise an adjustable iris, adjustable light sources and/or LCD stack that is capable of lowering the luminance of the light source illuminating the first modulator. A second modulator may be provided. The first modulator may comprise a plurality of analog mirrors (e.g. MEMS array) and the second modulator may comprise a plurality of mirrors (e.g., DMD array). The display system may further comprise a controller that sends control signals to the light dimmer and first modulator. The display system may render a desired dynamic range for rendering a projected image by a combination of such control signals.

Abstract: A light source device includes light sources having semiconductor lasers, a condensing lens, an optical component between the light sources and the condensing lens, and a phosphor wheel. The optical component has an inclined optical surface, and the inclined optical surface has different inclination angles for each of the light sources. Some of the semiconductor lasers are first semiconductor lasers having a short axis of the shape of its condensing spot aligned in a first direction and some of them are second semiconductor lasers having a short axis in a second direction that is different from the first direction. A light diffusing layer is disposed in the optical path of the emitting light of either the first semiconductor laser or the second semiconductor laser. A light scattering layer is disposed in the optical path of the emitting light of either the first semiconductor laser or the second semiconductor laser.

Abstract: A vision inspection apparatus includes a tri-stimulus measuring part configured to measure gray tri-stimulus values of a sample grayscale and color tri-stimulus values of a full-grayscale, a color tri-stimulus generating part configured to generate color tri-stimulus values of the sample grayscale using the gray tri-stimulus values of the sample grayscale and the color tri-stimulus values of the full-grayscale, and a color correction value generating part configured to generate color grayscale correction value using the gray tri-stimulus values of the sample grayscale and the color tri-stimulus values of the sample grayscale.

Abstract: In described examples, a first TIR or RTIR element is arranged to introduce at least red light to a first spatial light modulator for modulation thereof, and a second TIR or RTIR element is arranged to introduce at least green light to a second spatial light modulator for modulation thereof. At least one of the first and second TIR or RTIR elements is arranged to introduce blue light to at least one of the first and second spatial light modulators, respectively, for modulation thereof: time-sequentially apart from the first spatial light modulator's modulation of the introduced red light, to an extent the blue light is so introduced to the first spatial light modulator; and time-sequentially apart from the second spatial light modulator's modulation of the introduced green light, to an extent the blue light is so introduced to the second spatial light modulator.

Abstract: A lighting device may include a light generating unit configured to generate at least two light beams; at least one phosphor surface which is illuminatable by the light beams; and at least one movable deflection mirror for the scanning deflection of the light beams onto the phosphor surface, such that the light beams impinge on the at least one phosphor surface in a spaced-apart fashion, and such that at least one region of the phosphor surface is illuminatable by at least two light beams in a manner spaced apart temporally.

Abstract: A projection subsystem for a high contrast projection system is described including three digital micro-mirror devices (MMD) and three prism assemblies and a crossed dichroic prism assembly, the prism assemblies having dual TIR prisms.

Abstract: A projection apparatus includes a spoke setting unit configured to set each change timing of changing the plurality of colors, and set spoke periods generated at the each change timing, a light source drive unit configured to drive the light source unit, based on the change timings and the spoke periods set by the spoke setting unit, a detection unit configured to obtain information indicating each light amount of the light for each of the plurality of colors, which are emitted from the projection unit during the spoke periods, and a light source controller configured to control the light source unit so as to adjust a color balance of color mixtures in the spoke periods to a predetermined balance based on the information obtained in the detection.

Abstract: An illumination system including an excitation light source module configured to emit an excitation beam, a wavelength conversion device, and a light-splitting unit on a transmission path of the excitation beam and between the excitation light source module and the wavelength conversion device is provided. The light-splitting unit includes a transparent substrate and a first optical film with a hole through which the excitation beam is transmitted to the wavelength conversion device. A wavelength conversion area and a diffusion area of the wavelength conversion device cut into the transmission path by turns. The wavelength conversion area converts the excitation beam into a conversion beam transmitted to the light-splitting unit. The diffusion area reflects the excitation beam to the light-splitting unit; the first optical film reflects the excitation beam coming from the diffusion area. Wavelengths of the conversion beam and excitation beam are different. A projection apparatus is also provided.

Abstract: Configuration information indicating a positional relationship for projected images of a plurality of projectors in a multi-projection realized by the plurality of projectors is acquired. An instruction on the display screen, which displays an image according to the positional relationship is accepted. Based on the configuration information and the position in the display screen of the accepted instruction, a projector for which a setting is to be changed is specified from the plurality of projectors. A signal to change the setting of the specified projector is transmitted.

Abstract: A projector includes: a plurality of image-forming units each including an image forming surface provided with a plurality of micromirrors; a plurality of reflecting units that are provided so as to respectively reflect the plurality of image beams formed by the image-forming units; a beam-combining unit that receives the plurality of image beams via the plurality of reflecting units and emits a combined image beam in which the plurality of image beams are combined such that the propagation directions coincide; and a projection unit that projects the combined image beam emitted from the beam-combining unit. At least two of the image-forming units are arranged such that the image-forming surface of each image-forming means lies in the same plane.

Abstract: An optical projection unit includes first and second optical element modules. The first optical element module includes a first housing unit and a first optical element received within the first housing unit and having an optically used first region defining a first optical axis. The second optical element module is located adjacent to the first optical element module and includes a second optical element which defines a second optical axis of the optical projection unit. The first housing unit has a central first housing axis and an outer wall extending in a circumferential direction about the first housing axis. The first optical axis is laterally offset and/or inclined with respect to the first housing axis. The first housing axis is substantially collinear with the second optical axis.

Abstract: An illumination optical system of a 3-dimensional (3D) image acquisition apparatus and a 3D image acquisition apparatus including the illumination optical system. The illumination optical system of a 3D image acquisition apparatus includes a beam shaping element which outputs light having a predetermined cross-sectional shape which is proportional to a field of view of the 3D image acquisition apparatus. The beam shaping element may adjust a shape of illumination light according to its cross-sectional shape. The beam shaping element may uniformly homogenize the illumination light without causing light scattering or absorption.

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: Provided are a light source, a light source unit, and a light source module that have small sizes, high output, and high coupling efficiency with an optical system, and further, can efficiently dissipate heat generation sources to exhaust heat. In the light source unit of the present disclosure, the light source is a semiconductor laser array. This configuration can realize high output of the light source, and high output of the whole light source unit. The light source unit includes a lens that converts outgoing beams to parallel beams, and an optical element having a plurality of optical surfaces with different minute inclination angles with respect to a principal surface. The minute inclination angles of the plurality of optical surfaces that intersect with optical rays of the plurality of outgoing beams passing through a principal point of the lens are opposite to one another with respect to the principal surface.

Abstract: An optical unit includes a plurality of paraboloid mirrors configured to reflect light fluxes from a plurality of LDs and to guide them to a concave lens. The light fluxes from the paraboloid mirrors are a plurality of convergent light fluxes, and the paraboloid mirrors reflect the light fluxes from the LDs such that as the convergent light fluxes travel farther away from the paraboloid mirrors, distances therebetween become shorter.

Abstract: A projector includes a light source, liquid crystal panels that modulate light emitted from the light source, a dichroic prism that combines modulated light fluxes modulated by the liquid crystal panels with one another into video light and outputs the video light, and a pixel shift device that changes the optical path of the video light output from the dichroic prism. The pixel shift device includes a glass plate on which the video light is incident and an electromagnetic actuator that causes the glass plate to swing. The electromagnetic actuator is arranged in a position outside the dichroic prism and different from the positions of the liquid crystal panels when viewed along the optical axis of the video light.

Abstract: An illumination device includes a diffusion element and a light source device that emits a beam bundle including a first unit beam bundle to be incident on the diffusion element along a first direction and a second unit beam bundle to be incident on the diffusion element along a second direction. An angle formed by the first unit beam bundle with an optical axis of the beam bundle is greater than an angle formed by the second unit beam bundle with the optical axis, and the illumination device satisfies I2<I1 where I1 is a luminous flux of the first unit beam bundle, and I2 is a luminous flux of the second unit beam bundle.

Abstract: A projector includes a light source unit group having light source units arranged in matrix, a mirror group arranged in a traveling direction of light beams emitted from the unit group, the mirror group including reflective mirrors that reflect, with reflective parts, the beams emitted from the unit group while each of the reflective mirrors narrows interval between the beams in a first direction, the mirrors being arranged stepwise so as to narrow interval between the beams in a second direction, and a cylindrical lens arranged in traveling directions of beams reflected by the mirrors, the lens causing the reflected beams reflected by the mirrors and traveling in the traveling directions different from each other to be parallel, the reflective parts being arranged to be bent in steps in the second direction so that the beams to be reflected in the second direction are close to each other.

Abstract: A projector includes a light source portion; a light source control portion that controls an amount of light emitted by the light source portion; a feature amount acquisition portion that inputs image data and calculates an image feature amount of the input image data; an amount of light acquisition portion that acquires a set amount of light of the light source portion based on an image feature amount; a correction value acquisition portion that acquires a correction value based on the set amount of light; and an amount of light correction processing portion that corrects the set amount of light by using the correction value acquired by the correction value acquisition portion. The light source control portion controls the amount of light of the light source based on the set amount of light that is corrected by the amount of light correction processing portion.

Abstract: A light source optical system includes a first fly-eye lens including a plurality of first lens cells, and a second fly-eye lens including a plurality of second lens cells that guide a light flux from the first fly-eye lens to a fluorescent member. A light source image is formed between the first fly-eye lens and the fluorescent member. When a short side direction of the second lens cells is defined as a first direction and a long side direction of the second lens cells is defined as a second direction, the width of the light source image in the second direction is wider than the width of the light source image in the first direction.

Abstract: A vehicle control system includes: an outside-of-vehicle operation device configured to cause a vehicle to travel operated by an operator from outside of the vehicle, inside of a compartment of the vehicle being isolated from the outside of the vehicle by a vehicle body; an assist instruction device configured to cause the operator to select a travel mode in which the vehicle is allowed to travel by an operation of the outside-of-vehicle operation device; a parking brake operation detector configured to detect an operation of a parking brake; and a warning device configured to issue warning in a compartment to stimulate sense of hearing or sense of sight at the time the travel mode is selected and the operation of the parking brake is detected.

Abstract: A projection-type image display device includes a light source, a phosphor, and a filter. The light source emits a first blue illumination light. The phosphor generates a first yellow illumination light of a first wavelength band, which includes a component of a red band and a component of a green band, from a part of the first blue illumination light, and reflects a second blue illumination light and the first yellow illumination light. The filter reflects, to the phosphor side, a third blue illumination light that is a part of the second blue illumination light reflected by the phosphor, and attenuates a component of a second wavelength band of the first yellow illumination light, which is narrower than the first wavelength band. The phosphor also generates a second yellow illumination light from the third blue illumination light reflected by the filter.

Abstract: A light source device includes: a light source for emitting excitation light; a first optical system for condensing excitation light emitted from the light source into a rectangular shape; a fluorescent wheel having a plurality of light emitting portions emitting different color light in response to irradiation of the excitation light formed in such a manner in which each of the multiple light emitting portions is irradiated with the excitation light condensed in a rectangular shape by the first optical system; a second optical system for condensing color light emitted from each of the multiple light emitting portions in response to irradiation of the rectangularly condensed excitation light; and a rotating prism that is rotatably arranged on the optical path of the light condensed by the second light source and that shifts the optical axis of the light condensed by the second optical system as the prism turns.

Abstract: A light source apparatus comprising light sources including laser diodes and collimating lenses, a condenser lens, and a transmissive phosphor wheel. The collimating lens and laser diode are placed with a first shift such that an optical axis of the collimating lens is shifted from that of light from said laser diode in the direction perpendicular thereto. The laser diodes include a first laser or second diode where a direction of a short axis of a condensed shape is placed in a first or second direction, and a second laser diode where a direction of a short axis of a condensed shape is placed in a second direction. The collimating lenses corresponding to said first laser diode and the second laser diode are placed with a second shift in a direction of the optical axis of said collimating lens.

Abstract: A projection display is provided with an imager that is implemented to generate individual images in a distribution of sub-areas of an imaging plane of the imager. The projection display also includes a multi-channel optics, which is configured to map one allocated sub-area of the imager each per channel, such that the mappings of the individual images are combined to an overall image in a projection area. At least some channels of the multi-channel optics are arranged along at least one curve which is similar to at least one elongated image feature of the overall image, so that a two-dimension anisotropic out-of-focus behavior of each projected image point is obtained. In this way, a large depth of focus range can be combined with relatively high projection brightness without having to accept losses with respect to the focused illustration of image features that are to be projected with sufficient focus.

Abstract: A projection screen for forming an image by converting light pixel pulses from a digital projector comprises a three-dimensional sheet matrix made of a transparent composite. Functional inclusions for light-scattering, light-absorbing and luminescence of the light from the projector are distributed through the matrix thickness to thereby enable that the conversion of the light pulses into the image for direct perception by eyesight be performed throughout the volume of the matrix. The matrix thickness between the frontal and rear surfaces of the matrix is selected for digital image sources between an inter-pixel grid width and tenfold diagonal size of a pixel of a digitized image on the screen. The object of the invention is to reproduce identifying features of informational models of real objects in a wide angle of image perception under side lighting.

Abstract: A projector with image plane modal vibration for speckle reduction is provided. The projector includes: a laser light source; a light modulator; and optics that convey light from the laser to the modulator and project modulated light from the modulator, the optics comprising an image plane. The projector further includes: a surface comprising at least a first region located at the image plane, the first region being at least as large as an image formed at the image plane, the first region configured to one or more of transmit and reflect the image; and at least three actuators, positions of interaction of the actuators with the surface are asymmetric relative to the surface, the actuators configured to generate respective moving surface waves in the first region at respective frequencies, the respective frequencies comprising non-integer multiples of each other.

Abstract: Disclosed are a system and method for performing distortion correction and calibration using a pattern projected by a projector. The system for performing distortion correction and calibration includes a projector that projects a pattern, at least one camera that generates a photographed pattern image by photographing an image onto which the pattern is projected, and an image processing device that calculates a calibration parameter by comparing an original pattern image projected by the projector and the photographed pattern image. Thus, it is possible to obtain an accurate depth image by easily utilizing an image for the pattern projected by the projector. In addition, when obtaining the depth image, the calibration parameter for correcting image distortion according to camera lens and a calibration state of cameras may be efficiently obtained using the pattern projected by the projector.

Abstract: A microlithographic projection exposure apparatus has a measuring device, by which a sequence of measurement values can be generated, and a processing unit for processing the measurement values. The processing unit has a processing chain which includes a plurality of digital signal processors. The first digital signal processor in the processing chain is connected to the measuring device to receive the sequence of measurement values. Each subsequent digital signal processor in the processing chain is connected to a respectively preceding digital signal processor in the processing chain. The digital signal processors are programmed so that each digital signal processor processes only a fraction of the measurement values and generates processing results therefrom, and forwards the remaining fraction of the measurement values to the respective next digital signal processor in the processing chain for processing.

Abstract: A laser apparatus includes a plurality of laser modules each generating a laser line in a working plane. The laser modules are juxtaposed so that the laser lines generated by the modules combine into a single laser line. Each of the laser modules includes at least one laser line generator. The laser line generator includes two linear arrays of strips of laser diodes each emitting a focused laser beam. The two linear arrays are arranged parallel to each other so that the strips are staggered. The two sets of parallel laser beams generated by the two linear arrays of strips, respectively, are merged into a single laser line by a set of mirrors. The linear arrays of strips of laser diodes and the mirrors are arranged so that the two sets of laser beams trace optical paths of the same length before being merged into a single laser line.

Abstract: An optical element adjusting apparatus configured to support an optical element includes an adjusting base, a fixed base and locking elements. The adjusting base includes a first through hole disposed on a center of gravity of the adjusting base, a second through hole and a third through hole. An extension direction of a first straight line passing through the first through hole and the second through hole is different from an extension direction of a second straight line passing through the first through hole and the third through hole. The fixed base includes coupling holes corresponding to the first, second, third through holes. The locking elements pass though the first, second, third through holes respectively and are coupled to the coupling holes to couple the adjusting base to the fixed base. The adjusting base includes a support side away from the fixed base to support the optical element.

Abstract: An immersive display system is disclosed that includes screens configured to mitigate reduction in contrast ratio due at least in part to peripheral light incident on the screens. The immersive display system includes at least one screen having an array of micro-lenses, a light polarization layer on top of the array of micro-lenses, a polarization rotation layer, a light reflection layer, and a section of non-polarizing light scattering material for individual micro-lenses in the array of micro-lenses. In use, light from a projector associated with the screen is substantially scattered by the non-polarizing light scattering material and light from a projector associated with a different screen in the immersive display system is substantially absorbed by the polarization layer.

Abstract: Techniques for identifying usable projection areas within an environment and projecting content onto these areas are described herein. The systems described herein may include one or more projectors, one or more cameras, and one or more computing devices. In some instances, the described techniques may utilize the one or more cameras to identify a flat projection surface. After identifying this surface, the techniques may use depth detection, edge detection, or other techniques to determine whether the surface includes any objects protruding there from. If so, then the techniques may identify the size and location of these objects and may store an indication that these objects occlude a portion of the flat projection surface and, therefore, that the locations associated with these objects are not usable projection areas. The techniques may then deduct the locations of the objects from the initially identified projection surface to determine the usable projection areas.

Abstract: An apparatus for projecting a picture element based on at least a first and a second sample comprises a mirror configured to pivot about two axes, at least a first and a second light generation unit, and a processor being configured to output the first sample received at a first point in time at a second point in time to the first light generation unit and the second sample received at a first point in time at a third point in time to the second light generation unit. At least one of the second and third points in time is determined such that the distance between the actual first and second positions is reduced.

Abstract: A lighting device comprising a phosphor wheel configured such that it temporarily sequentially not only emits the excitation light in a wavelength-converted fashion as conversion light but additionally reflects said excitation light in an unconverted fashion as reflection light. Conversion light and reflection light are guided spatially separately on a conversion light path and reflection light path, respectively, with the aid of a first dichroic mirror and are finally combined with the aid of a second dichroic mirror. In this way, it is possible to combine the reflection light for example as a blue light channel with the conversion light.

Abstract: A light source unit includes a light source which emits a light bundle in one direction; a polarizing unit which is formed to selectively transmit a certain polarized light of a certain wavelength in the light bundle; and a reflection unit which is formed so as to delay the phase of the polarized light so that the polarized light is reflected by the polarizing unit, convert one part of the wavelength of the polarized light, and reflect the polarized light toward the polarizing unit.

Abstract: A solid state illumination system is provided for image projection. Red, green and blue light is generated using a blue laser light source and phosphor emissions. The red, green and blue light is passed by TIR or TRIR elements of red, green and blue light channels of an X-cube prism structure for separate modulation by different spatial light modulators. The modulated red, green and blue light is passed by the TIR or TRIR elements into the X-cube and combined into a combined modulated RGB image forming light stream for image formation via projection optics onto a target imaging surface.

Abstract: A projector includes a first light source apparatus, a second light source apparatus, a laser light source apparatus, a first light modulator, a second light modulator, a third light modulator that modulates light from the laser light source apparatus, a cross prism that combines first image light, second image light, and third image light formed by the respective light modulators with one another, and a secondary light source image formation system that forms a secondary light source image on an optical path between the laser light source apparatus and the third light modulator, and the secondary light source image is so shaped that the length thereof in a direction perpendicular to a central intersection line of the cross prism is longer than the length thereof in a direction parallel to the central intersection line.

Abstract: Provided is a light source device where the number of optical components is reduced without lowering an efficiency for light utilization. The light source device includes an excitation light source which generates blue laser light as excitation light, a phosphor wheel including a phosphor which is excited by the excitation light from the excitation light source to generate yellow fluorescent light, and a mirror which guides the excitation light from the excitation light source to the phosphor wheel and transmits the fluorescent light from the phosphor wheel, wherein the mirror includes a first region which reflects the excitation light and transmits the fluorescent light and a second region which transmits the fluorescent light and diffused excitation light which is diffused and reflected in the phosphor. The yellow fluorescent light and the diffused excitation light passing through the mirror are mixed to generate white light.

Abstract: Instead of a monochromatic projection screen, an active projection screen is provided which varies reflectance and gray level (black to white) in synchronization with the content being shown. Groups of multiple screen pixels, which are smaller than each projected pixel from the projector, are assigned to each respective larger projection pixel.

Abstract: A substrate for an LED emitter includes a body with a recess region formed therein. Bonding pads are disposed within the recess region, including LED bonding pads for LEDs and supporting chip bonding pads for one or more semiconductor chips that provide supporting circuitry (e.g., driver and/or controller circuitry) to support operation of the LEDs. External electrical contacts can be disposed outside the recess region. Electrical paths, disposed at least partially within the body of the substrate, connect the external electrical contacts to a first subset of the supporting chip bonding pads and connect a second subset of the supporting chip bonding pads to the plurality of LED bonding pads such that one or more supporting chips connected to the controller pads can be operated to deliver different operating currents to different ones of the LEDs.

Abstract: A system and method of capturing a stereoscopic pair of images for use in forming a 3-D image of an object at a desired perceived position in a scene projected onto a dome surface. The first one of the stereoscopic pair of images is captured when the object is offset to the right of the desired perceived position in the scene. The second one of the stereoscopic pair of images is captured when the object is offset to the left of the desired perceived position in the scene. In this manner, positive parallax can be captured in front of a viewer, upward in an arc through the zenith of the dome, and beyond to the back of the dome. The system and method allows scenes projected onto a dome surface to contain positive parallax, and therefore allows objects to appear to be located beyond the dome surface.

Abstract: A video controller for synchronizing presentation of a plurality of images is provided. A color switching device is operable to continually select a color out of a set consisting essentially of a plurality of fundamental colors. Each fundamental color is selected for presentation for a fixed time segment. A light processing element is operable to block and permit transmission of light in each color selected by the color switching device during each fixed time segment. The light includes at least two streams of sequential images. A synch signal generator is in control of the light processing element and is configured to time presentation of the light by the light processing element and of control signals to a viewing device of the display. The presentation of the light and of the control signals is timed in synchrony with the fixed time segments only during a transition state of the viewing device.

Abstract: A projector has plural liquid crystal light valves each of which modulates color light, a cross dichroic prism which combines the color lights modulated by the plural liquid crystal light valves, and a projection lens which projects the light combined by the cross dichroic prism. The projector includes: a holding unit which holds the liquid crystal light valve; and a supporting member having a body unit supported to the cross dichroic prism and first plate-like portions which protrude from the body unit and support the holding unit. The first plate-like portions are inclined from a vertical plane including an optical axis of the liquid crystal light valve.