Abstract: The focus position of each projection apparatus is changed depending on the configuration state of a projection system comprising a plurality of projection apparatuses.

Abstract: A method of facilitating athletic training is disclosed herein. The method includes the step of projecting an image downwardly on a surface. The projected image displays a plurality of indicia including at least one position indicia corresponding to a participant of an athletic activity and at least one reference indicia at least partially spaced from the at least one position indicia.

Abstract: A projector device includes: a light modulating element which modulates light from a light source section according to an image signal; a projecting section which projects a modulation light modulated by a displayable region in a surface of an effective region of the light modulating element onto a projection surface; a trapezoidal distortion correcting section which corrects trapezoidal distortion of a projection image projected onto the projection surface by projecting a light modulation image by means of the displayable region by an after-correction image region which is a part of the effective region of the light modulating element; and a position adjusting section which adjusts the position of the projection image projected onto the projection surface by moving the after-correction image region in the surface of the effective region while maintaining the size and shape of the after-correction image region.

Abstract: A substrate connection structure between a plurality of light modulating devices each having a flexible substrate extending in a predetermined direction and a circuit substrate connected with the light modulating devices, wherein the light modulating devices are arranged so that the direction of one flexible substrate extending from at least one of the light modulating devices is different from the directions of the other flexible substrates extending from the other light modulating devices, the substrate connection structure includes: a relay substrate which is connected with the one flexible substrate; and an extension flexible substrate which is connected with the relay substrate.

Abstract: A laser projector comprises an oscillation device for displacing at least one of a plurality of optical elements, which constitute the projection optical system of the laser projector, periodically along the direction of the optical axis of laser light. The laser projector reduces the speckle of a projection image on an arbitrary screen to such an extent as it cannot be recognized with human eyes, without having a significant effect on the image resolution, by periodically displacing the position of the smallest spot of laser light projected from the projection optical system.

Abstract: A control unit of a projector includes a startup information receiving section configured to receive startup information about startup of the projector. A medium judging section of the control unit is configured to judge types of information available on a recording medium. A light source controlling section of the control unit is configured to execute light turn-on control of a light source to emit light after the startup information receiving section receives the startup information, and execute light turn-off control to turn off the light source after execution of the light turn-on control when the type of the information on the recording medium is determined to be exclusively non-visual by the medium judging unit.

Abstract: An integrated photonics module may include a selective fold mirror configured to pass at least a portion of emitted light toward the MEMS scanner and reflect scanned light through to a field of view. The selective fold mirror may use beam polarization to select beam passing and reflection. The integrated photonics module may include a beam rotator such as a quarter-wave plate to convert the polarization of the emitted light to a different polarization adapted for passage through the fold mirror. The integrated photonics module may include one or more light detectors.

Abstract: The present disclosure relates to a method for the production and/or adjustment of an optical arrangement of a projection illumination system, in which at least one actuator is used to set the position of at least one optical element to be manipulated by moving the optical element incrementally with a specific increment size. The increment size of the movement increments is set as a function of the distance of the optical element from the desired position, with the distance being represented by a distance value. If the distance value is above a first threshold value, a substantially constant increment size is set, while the specific increment size decreases as the distance from the desired position decreases if the distance value is below the first threshold value. Alternatively or additionally, a pre-specified deviation from the specific increment size and/or from a pre-specified increment size change rate results in a warning signal and/or ceasing of the movement.

Abstract: An image processing apparatus captures an object's image and separates the object's image into multiple components. The apparatus includes: a light projecting section 101 for projecting light emitted from a light source toward the object; a color and polarization obtaining section 102 for getting a color polarized image of the object; a polarization information processing section 104 for generating color and polarization information based on an association between the intensity of the light that has been transmitted through a polarizer with three or more polarization principal axis directions and the polarization principal axis directions for each of unit pixels that form the color polarized image; a light source color information collecting section 105 for collecting color information of the light source; and an image component separating section 106 for separating the color image into multiple components based on the polarization information and the color information of the light source.

Abstract: Control of a multiprojector system having multiple projectors arranged in a projector array. It is determined whether the projector array is positioned to form one object or two or more objects. A first keystone correction mode is selected if it is determined that the projector array is positioned to form one object. A second keystone correction mode is selected if it is determined that the projector array is positioned to form two or more objects. In the first keystone correction mode, a homography transformation for each of the projectors is derived so as to accommodate keystone correction of all projectors in the projector array involved in the projection of the single object. In the second keystone correction mode, a homography transformation for each of the projectors is derived so as to accommodate keystone correction of all projectors involved in the projection of each object.

Abstract: A method includes generating a plurality of beams that each illuminate a separate portion of a spatial light modulator. The spatial light modulator has a first dimension of a first length and a second dimension of a second length. Each of the beams spans a portion of the first length of the first dimension and a portion of the second length of the second dimension. The method also includes scrolling the plurality of beams along the second dimension of the spatial light modulator while maintaining at least a first gap between each of the plurality of beams.

Abstract: A projection device (1) includes: a projector (2) adapted for projecting a mother image along a projection axis (11); and a convex mirror adapted for at least partially reflecting the mother image and projecting it onto a three-dimensional environment (7, 8a, 8b) such as the ground, a ceiling, one or more side walls and the content of a room. When combining the projector with a convex mirror, the mother image can for example be projected into a solid angle higher than 2? steradians (i.e. a half-sphere), or even substantially equal to or slightly lower than 4? steradians (i.e. a sphere). A method implemented by the device is also described. The field of the invention is particularly that of video projectors for virtual or mixed reality applications.

Abstract: A lamp driving apparatus configured to drive a plurality of types of lamps, each of the plurality of lamps is attached with lamp identification information for uniquely identifying the lamp. The lamp driving apparatus includes: a lamp power supply configured to drive the lamp; a read circuit configured to read the lamp identification information from the lamp; and a control circuit configured to control the lamp power supply on the basis of a result of identification obtained by use of the read lamp identification information. The control circuit, if the lamp is found to be authorized, makes the lamp power supply drive the lamp.

Abstract: An imaging system (200) includes a plurality of laser sources (201) configured to produce a plurality of light beams (204). One or more optical alignment devices (220) orient the light beams (204) into a collimated light beam (205). A light modulator (203) modulates the collimated light beam (205) such that images (206) can be presented on a display surface (207). Speckle is reduced with an optical feedback device (221) that causes the laser sources (201) to operate in a coherence collapsed state. Examples of optical feedback devices (221) include partially reflective mirrors and beam splitter-mirror combinations.

Abstract: A transparent screen is constructed in such a way that a plurality of Fresnel prisms 12d each of which is smaller than a plurality of Fresnel prisms 12a and has a shape approximately similar to that of each of the plurality of Fresnel prisms 12a are arranged in a sawtooth shape on a non-light incidence surface portion of a Fresnel lens 12 on a light incidence side to which any image light PB applied from a projector 1 is not applied directly because blocked by a Fresnel prism 12a placed frontwardly.

Abstract: An optical projection system includes a light source module, a field lens, a fly-eye lens, a light valve and a projection lens. The field lens is disposed on a propagation path of a light beam, where the light beam emitted from the light source module comprises a transmission light beam passing through the field lens and a reflection light beam reflected by the field lens. The fly-eye lens is disposed on the propagation path of the light beam and between the light source module and the field lens to homogenize the light beam, where the fly-eye lens includes a plurality of lens elements arranged in an array, the reflection light beam passes through the lens element via a transmissive region of the lens element, and at least one of an opaque structure, a light-diffusing structure and a light-deflecting structure is formed on the transmissive region.

Abstract: A safe, highly bright projector is to be implemented. A projector directs a light beam from a light source (101) to an image modulating device (105), and magnifies and projects an image formed at the image modulating device (105) through a zoom lens (102). This projector has a light transmitting window (103) movably disposed in front of the surface of the light outgoing side of the zoom lens (102) along the optical axis. The projector further has a window position control unit (108) to control the position of the light transmitting window (103) so as not to change the light beam region that appears on the outer surface of the light transmitting window (103) as the focal length of the zoom lens (102) is varied.

Abstract: An illuminating optical system for a projector including a light source and a plurality of display panels, includes a first integrator that includes a plurality of lens cells that divide a luminous flux emitted by the light source into a plurality of partial luminous fluxes and that condense the respective partial luminous fluxes, a second integrator that includes a plurality of lens cells on which the respective partial luminous fluxes are incident, a polarization converting element that uniformizes polarizing directions of the luminous fluxes having passed through the respective lens cells of the second integrator, and a color separating unit that separates each of the luminous fluxes from the polarization converting element into a plurality of color lights of different wavelengths. A field lens and a condenser lens are arranged between the polarization converting element and the color separating unit.

Abstract: An image processing device for a projector including an image formation section that emits light of an image, and a projection system that projects the emitted light onto a projection surface. The image processing device has a distortion correction technique for images displayed on the projection surface. The image processing device has a target display area determination section that determines, in a display area serving as a reference on the projection surface, based on a current value of a parameter, any of target display areas set for values possibly taken by the parameter within an allowable range to be targeted on a distortion-free image for display on the projection surface; a reference formation area determination section that determines a reference formation area to be formed with a virtual distorted image and a correction application section that generates corrected image data for supply to the image formation section.

Abstract: An information handling system powers a projector through a communication interface, such as a USB interface, by selectively enabling first or second power levels through the communication interface. Initially, the communication interface provides a first minimal power level to run a controller on the projector. The controller communicates with the information handling system to establish approval for power at a second level, such as by communicating an identifier or a power level to the information handling system. The projector approves a power draw at the second power level based upon information received from the information handling system. The projector draws power at a second level that is adequate to fully operate the projector for presentation of visual images.

Abstract: Disclosed herein is a projector that can be loaded with lamps of a plurality of kinds, each of a plurality of the lamps loadable into the projector being given a lamp serial code formed by arranging lamp information on the lamp and a check sum in predetermined order, the projector including: a control circuit for performing a clocking operation of a lamp timer for managing a use time of the lamp loaded in the projector; and a memory for storing information.

Abstract: A projection apparatus has a spatial light modulator to modulate illumination from a laser light source. A base projection lens has, from its long conjugate side to its short conjugate side, a first lens group with negative focal length and with a first lens element that has a negative focal length and a second lens element of positive focal length, a second lens group of negative focal length and spaced apart from the first lens group and having one or more cemented lens elements, and a third lens group spaced apart from the second lens group and having a lens with a positive focal length. The base projection lens has a first field of view and is telecentric in its short conjugate. An afocal attachment to the base projection lens alters the first field of view by the same amount in both of two orthogonal directions.

Abstract: A projector includes: an image projection unit that projects an image; a trapezoidal correction unit that performs trapezoidal correction on the image projected by the image projection unit; a nonvolatile storage unit that stores the amount of previous trapezoidal correction and a predetermined acceptable value associated with the amount of previous trapezoidal correction, the amount of previous trapezoidal correction being used immediately before at least one of when the projector is turned off and when signal processing is changed; and an adjustment unit that sets, if the amount of previous trapezoidal correction is greater than the predetermined acceptable value, the amount of trapezoidal correction to be performed by the trapezoidal correction unit at a predetermined standard value or zero after the projector is activated or after the signal processing is changed.

Abstract: A method of inhibiting a subject's eyes from being exposed to projected light when the subject is positioned in front of a background on which an image is displayed comprises capturing at least one image of the background including the displayed image, processing the captured image to detect the existence of the subject and to locate generally the subject and masking image data used by the projector to project the image corresponding to a region that encompasses at least the subject's eyes.

Abstract: Disclosed embodiments relate to a stereoscopic projection system and methods. An exemplary disclosed projection system includes an optical component disposed between the lenses of a lens arrangement. An exemplary lens arrangement includes a first power group, a second power group, and an aperture stop. In an embodiment, the optical component is disposed between the first power group and the aperture stop. In an exemplary embodiment, the optical component is proximate to the aperture stop. By disposing the optical component closer to or proximate to the aperture stop in the lens arrangement, various benefits may be realized, including improved contrast uniformity.

Abstract: An apparatus and method for an audience scanning laser display projector includes a laser projector capable of generating a laser beam output having a predetermined beam path, scan area and beam wavelength. A beam position sensor is associated with said laser projector. A camera capable of capturing an image of the audience using light of a wavelength other than the beam wavelength, is disposed relative to said laser projector so that the captured image includes the area scanned by the laser beam. A processor is operably connected with said laser projector, said beam position sensor and said camera, said processor generating a table corresponding to the camera image of the audience, and containing software capable of identifying location of faces in the audience image and comparing face locations with beam position so as to signal said laser projector to attenuate the beam when scanning over a face location.

Abstract: An immersive dome includes a number of novel features designed to enhance the performance of the immersive dome over presently-known immersive dome environments. Projectors are mounted in a multi-tier tower, out of sight beneath a viewing platform positioned to provide optimal wrap-around viewing. The projection surface consists of open-cell foam that allows passage of behind-surface sound into the dome while allowing unwanted ambient noise within the dome to escape. A visually-reflective coating, in conjunction with the open cell structure, provides a textured surface that acts as a micro-baffle and suppresses cross-reflection of projected imagery.

Abstract: A gobo holder with two gobos that are rotatable one relative to the other. The gobos are located with their patterned surfaces facing one another and very close to one another so that both can be in focus at the same time.

Abstract: In a method for projecting at least one optical projection onto at least one projection surface a monitoring zone that contains and/or surrounds a first projection surface is scanned with the aid of a working laser beam, which is not hazardous for the human eye, by the positioning the working laser beam on various scanning positions located in the monitoring zone, and a measured signal for light from the working laser beam that is reflected from the scanning positions is acquired. The measured signal is compared with the reference signal. Depending on the result of this comparison, the optical projection is projected onto the first projection surface by means of a projection laser beam, which has a greater radiant power than the working laser beam. With the aid of the working laser beam, a second optical projection is projected onto a second projection surface that is located outside of the monitoring zone.

Abstract: A method for projection correction includes following steps. An original image is projected as a projection image on an object. A projection-zone image including the projection image is captured from the object. A projection image outline corresponding to the projection image is obtained from the projection-zone image. An operation is performed on the projection image outline to obtain a horizontal inclination and a vertical inclination. The original image is pre-warped according to the horizontal inclination and the vertical inclination to obtain a corrected image, and the corrected image is projected on the object.

Abstract: An apparatus and method of reducing speckle in projection of images is provided that includes the elements or features of producing a first image and displacing the first image to produce a second image that will reduce speckle relating to the first image when the first image and the second image are displayed on a display medium.

Abstract: Embodiments include a light engine to generate pixels and a number of lenses positioned to receive pixels from the light engine and to project the pixels on to a field with a higher angular pixel density at an edge of the field than at a center of the field. A method according to embodiments includes generating pixels in a light engine, receiving the pixels from the light engine in a plurality of lenses, and projecting the pixels through the plurality of lenses on to a field with a higher angular pixel density at an edge of the field than at a center of the field.

Abstract: An apparatus for preventing bird collisions with a window including a UV light source, a mask, and a first lens configured to direct UV light from the UV light source through the mask. The mask is at least partially transparent to UV light and includes a pattern that is at least partially opaque to UV light. The UV light passing through the mask contains the pattern. The pattern-containing UV light is projected onto a pane of glass to form a UV image visible to birds corresponding to the pattern on the pane. The image is configured to deter birds from flying into the pane of glass.

Abstract: A device and method is provided for projecting an image within a defined content area using a plurality of projectors configured to each project a portion of an image. The device comprises a defined content area into which the image is projected by the plurality of projectors. A first group of projectors can be selected from the plurality of projectors and set at a first zoom level, then aligned and superpositioned with respect to one another to increase the pixel resolution and brightness of the projected image. The projectors can project a majority of projector light within the content area. A second group of projectors can be selected from the plurality of projectors, set at a second zoom level, aligned and superpositioned adjacent each other to project a majority of projector light within the content area. The first group of projectors can be superimposed with the second group of projectors to fill the content area and increase the pixel resolution and brightness of the projected image.

Abstract: A plurality of semiconductor light-emitting elements separately emits light of each of a plurality of colors. A reference signal output section outputs a reference signal for each of the plurality of colors. A selection section selects a reference signal for each of the plurality of colors output from the reference signal output section in accordance with a light-emission timing of each of the plurality of semiconductor light-emitting elements. An operation control section, provided for each of the plurality of semiconductor light-emitting elements, holds an operation value fitted to a light-emitting characteristic of a corresponding semiconductor light-emitting element and converts the reference signal selected by the selection section by an operation. A drive section drives corresponding one of the plurality of semiconductor light-emitting elements on the basis of a signal which has converted by the operation control section.

Abstract: A projection subsystem includes a light engine that provides a collection lens, a collimator and at least one solid state light emitter. A projection lens assembly receives the image and provides a projection beam having a luminous flux level. The projection subsystem has a portability efficacy.

Abstract: A projection device embodiment comprises a light source system, a gate with a cross sectional gate area, and projection optics. The light source system includes a solid-state light source configured to provide light, and light source optics. The light source optics are configured to distribute light from the solid-state light source across the gate area of the gate. The gate is configured to be used to produce an object to be imaged by the projection device. The projection optics is configured to project an image of the object.

Abstract: The present invention is applied to a projector that comprises a plurality of projection devices which generate images by modulating laser beams in the colors of R, G, B with optical modulators and which project the images onto projection surfaces through projection lenses, wherein the images projected respectively from said projection devices onto said projection surfaces are tiled into a single image as a whole. In the projector of the present invention, the number of G-color laser beam sources is smaller than the number of images projected respectively from said projection devices onto said projection surfaces; and said projection devices share said G-color laser beam sources and apply G-color laser beams emitted from said G-color laser beam sources to said optical modulators thereof.

Abstract: An edge lit locally dimmed display has a spatial light modulator illuminated by a light source. The light source is positioned at an edge and behind the spatial light modulator. The spatial light modulator is illuminated with a low resolution version of a desired image. The illumination may comprise a series of lighting elements that vary smoothly from one element to another at the spatial light modulator.

Abstract: A method of correcting luminance non-uniformity in a tiled projection system is disclosed. The method includes projecting with a plurality of projection devices a composite image wherein the composite image comprises a plurality of tiled images on a display surface with an overall luminance and correcting a luminance non-uniformity of the plurality of tiled images, wherein the luminance non-uniformity is based on a dimmed at least one of the plurality of tiled images, wherein correcting the luminance non-uniformity comprises utilizing at least one of the plurality of projection devices to adjust the overall luminance of the plurality of tiled images on the display surface.

Abstract: A method and apparatus is provided in which a digital image is transmitted to a presentation projector resource over a wireless transmission medium using a reduced amount of transmission bandwidth by transmitting a subset of the digital image data. The subset image data may be a delta subset that represents those areas of the image that have changed since the previous transmission. Header data is provided to further describe the subset image data. A projector discovery logic selects a suitable projector resource based on the order or signal strength of the discovery replies. A wireless image transmission session is established with the selected projector resource during which the projector is unavailable to other devices. The subset image data may be compressed and transmission coordinated with the projector resource so that the data is sent only when it is ready to be received.

Abstract: According to an embodiment of the present invention a projection facility for projecting image contents onto an inside wall in an open cabin of a transport means, with which any given image contents can be projected onto a curved inside wall in a large-scale manner. The projection facility may comprise, apart from several projectors, several mirrors for deflecting the image contents. This allows image quality to be improved.

Abstract: A multiple path stereoscopic projection system is disclosed. The system comprises a polarizing splitting element configured to receive image light energy and split the image light energy received into a primary path and a secondary path, a reflector in the secondary path, and a polarization modulator or polarization modulator arrangement positioned in the primary path and configured to modulate the primary path of light energy. A polarization modulator may be included within the secondary path, a retarder may be used, and optional devices that may be successfully employed in the system include elements to substantially optically superimpose light energy transmission between paths and cleanup polarizers. The projection system can enhance the brightness of stereoscopic images perceived by a viewer. Static polarizer dual projection implementations free of polarization modulators are also provided.

Abstract: A light source device for a display device for projecting an image on a screen is provided, the light source device for display device including a light source unit operable to output light; an image outputting unit operable to output an image by giving an image signal to the light; and a control circuit operable to switch the image output from the image outputting unit between a normal image and a mirror reversed image formed by reversing the normal image right and left by controlling the image signal, such that outputting type is switched between a front projection in which the image is projected onto the screen from a front on the same side as the viewing side, and a rear projection in which the image is projected onto the screen from a rear plane on the opposite side to the viewing side.

Abstract: A projector having optical components, a power source unit, and a light source unit. The projector is capable of lowering its internal temperature utilizing: a first, second, and third fan (41, 42, 43) provided near the optical components for introducing external air from outside the projector to cool the optical components; and a fourth, fifth, and sixth exhaust fan (16, 17, 18). The fourth fan (16) blows the air that was taken in by the first, second, and third fan (41, 42, 43) and has cooled the optical components, onto the light source unit to further cool the light source unit. The fifth and sixth exhaust fans (17, 18) discharge the air that has cooled the light source unit and power supply unit out of the projector.

Abstract: The invention relates to a method for establishing a light beam (CLB) with substantially constant luminous intensity comprising the steps of establishing a light beam (LB) by means of a light source (SAL) and controlling an attenuation of said light beam (LB) on the basis of occurrences of luminous intensity peaks (IP) in said light beam (LB).

Abstract: A lid structure, apparatus and method for displaying graphical information uses beams of coherent light that are emitted in a scanning manner to project the beams of coherent light onto a display surface to form the graphical information on the display surface.

Abstract: Methods of operating a frequency-converted laser source are disclosed. According to particular disclosed embodiments, a laser diode is driven in a pulsed mode to define pixel intensity values corresponding to desired gray scale values of image pixels in an image plane of the laser source. The pixel intensity values are a function of a laser control signal comprising a discontinuous pulse component, a relatively constant intensity component I, and a continuously variable intensity component I*. The pulse width w of the discontinuous pulse component is selected from a set of discrete available pulse widths according to a desired pixel gray scale value. A low-end pulse width w of the set of available pulse widths is established for a range of low-end pixel gray scale values and progressively larger pulse widths w are established for ranges of progressively higher pixel gray scale values.

Abstract: A light source controller is configured to control timings of driving the first and second light sources and the light-source light generator, so that the light-source light of two or more colors generated by the light-source light generator and the light-source light emitted from the second light source are cyclically generated, by setting a light-emitting period of at least one light-source light color having a higher luminous efficiency out of the two or more colors generated by the light-source light generator, shorter than those of the other light-source light colors, and setting a drive power of the first light source during generation of the light-source light color whose light-emitting period is set short, greater than a drive power of the first light source during generation of the other light-source light colors.

Abstract: A reflective mirror manufacturing method for manufacturing a reflective mirror used in an illumination device including an arc tube including a light-emitting portion and a reflective mirror including a reflective surface that reflects light from the light-emitting portion in a predetermined direction, includes: a first step of forming a tube by heating a tube including a material of the reflective mirror, thereafter putting the tube in a form block, applying internal pressure with an inert gas to cause a center portion of the tube to expand, so that part of an inner surface of the expanded center portion includes a shape corresponding to the reflective surface of the reflective mirror; a second step of cutting the tube at the center portion to form a reflective mirror member; and a third step of forming a reflective layer on an inner surface of the reflective mirror member.