Abstract: An augmented reality system includes a first scene and a second scene. Further, the augmented reality system includes a partially reflective surface positioned relative to the first scene, the second scene, and an audience to facilitate viewing of one of the first scene or the second scene through the partially reflective surface and to facilitate reflection of the other of the first scene or the second scene toward the audience as augmented reality imagery. A sensor of the augmented reality system is designed to detect and generate data indicative of a characteristic of the first scene, and a correlative effect system is operable to receive the data and adjust the second scene based thereon.

Abstract: Methods and apparatuses for acquiring display image sequence, rotary stereoscopic display devices and storage media are provided. A method includes: determining voxels in a 3D display space by multiple partitioning of the 3D display space in a cylindrical coordinate system using a predetermined partitioning mode, where the predetermined partitioning mode includes non-uniform partitioning in a radius direction of the cylindrical coordinate system, and space bounding boxes resulting from a same partitioning have a same volume; determining a cross-sectional profile of a 3D object to be displayed on a display screen at each of phase positions; determining a cross-sectional image based on voxels and the cross-sectional profile at each of the phase positions; and acquiring a display image sequence by arranging the cross-sectional images according to rotation angles of the display screen.

Abstract: A light source apparatus includes an excitation light shining device for emitting excitation light, a rotational wheel device including a rotational wheel including a filter area for transmitting light in a predetermined wavelength range differing from a wavelength range of the excitation light and reflecting the excitation light and a direction-changing transmission area for transmitting the excitation light while changing a direction thereof, and a luminescent light emission device which receives the excitation light reflected on the filter area to thereby emit luminescent light including the light in the predetermined wavelength range towards the filter area, and the rotational wheel device is disposed so that an axis of the excitation light which passes through the direction-changing transmission area and an axis of the luminescent light in the predetermined wavelength range which passes through the filter area are superposed on each other.

Abstract: Systems and methods for virtual reality or augmented reality (VR/AR) visualization of 3D medical images using a VR/AR visualization system are disclosed that includes a computing device operatively coupled to a VR/AR device, which includes a holographic display and at least one sensor. The holographic display is configured to display a holographic image to an operator. The computing device is configured to receive at least one stored 3D image of a subject's anatomy and at least one real-time 3D position of at least one surgical instrument, to register the at least one real-time 3D position of the at least one surgical instrument to correspond to the at least one 3D image of the subject's anatomy, and to generate the holographic image comprising the at least one real-time position of the at least one surgical instrument overlaid on the at least one 3D image of the subject's anatomy.

Abstract: A three-dimensional (3D) appearing Pepper's Ghost artifice is created in a 3D virtual environment for viewing on at least one target device by using a source device that includes a database that stores a plurality of virtual screens of varying sizes and shapes, and an artifice processor. Motion metric data of a human is captured. Also, at least one two-dimensional (2D) live video feed of at least a portion of the human is captured. The artifice processor enables and stitches a Pepper's Ghost artifice of the human using the motion metric data of the human, the at least one 2D live video feed of the human, and a unique identifier of the human. At least one virtual screen is selected from the database using the Pepper's Ghost artifice of the human. The selected virtual screen is compatible with the at least one 2D live video feed of the human.

Abstract: Disclosed are a method for generating display data by a rotatory stereoscopic display apparatus, a display driving method, a computer device, a rotatory stereoscopic display apparatus, and a stereoscopic display system. The method for generating display data includes: generating, based on display parameters of the rotatory stereoscopic display apparatus and a model to be displayed, an image array for displaying the model; generating, for an image in the image array, an initial data stream of the image, the initial data stream including: grayscale datum of each pixel in the image; and performing data compression on the initial data stream to generate a compressed data stream, the compressed data stream including: data units of pixels whose grayscale data is non-zero data, each data unit including: grayscale datum of the pixel and an order of the grayscale datum in the initial data stream.

Abstract: A laser light source depolarizer includes a laser light source, a light angle adjusting element, a birefringent crystal, and an integration rod. The laser light source is configured to emit a laser light. The light angle adjusting element is configured to change the diffusion angle of the laser light. The light angle adjusting element is disposed between the laser light source and the birefringent crystal. The birefringent crystal is disposed between the light angle adjusting element and the integration rod, and the birefringent crystal is configured to break the polarity of the laser light.

Abstract: A projection control device includes: a communication unit connected to communicate with an image capturing device configured to capture an image of a target object positioned around a projected object; a derivation unit configured to derive a projection position of a content image based on designation of a parameter related to the content image to be projected onto the projected object and an image of the projected object including the target object; a projection image generation unit configured to generate a projection image including the content image disposed at the derived projection position; and a control unit configured to transmit a projection instruction of the projection image to a projection device via the communication unit.

Abstract: Systems and methods are described for capturing, using a forward-facing camera associated with a head-mounted augmented reality (AR) head-mounted display (HMD), images of portions of first and second display devices in an environment, the first and second display devices displaying first and second portions of content related to an AR presentation, and displaying a third portion of content related to the AR presentation on the AR HMD, the third portion determined based upon the images of portions of the first and second display devices captured using the forward-facing camera. Moreover, the first and second display devices may be active stereo display, and the AR HMD may simultaneously function as shutter glasses.

Abstract: A display system of a vehicle displays a virtual image. The display system has a projection device, which is configured to emit display light in order to generate an image, and a reflecting device, which is configured for a first reflection of display light of the projection device arranged above the reflecting device by way of the reflecting device attached in or on an instrument panel of the vehicle. The display light of the projection device incident on the reflecting device is substantially retroreflected. The display system further includes a windshield of the vehicle, which windshield is configured for a second reflection of at least part of the display light, which was reflected by the reflecting device, to the eyes of an observer in the vehicle in order to allow the observer to see, behind the windshield, the virtual image of the image generated by the projection device.

Abstract: As disclosed herein, a desktop 3D display system is provided. A 2D image display module is used for receiving and displaying an integral imaging source. A viewing angle guide module is used for guiding light emitted from the integral imaging source. A light modulation module is arranged for modulating the light guided by the viewing angle guide module and reconstructing a 3D image. A rotation module is configured to enable synchronous rotation of the 2D image display module, the view angle guide module and the light modulation module, wherein. A rotation angle speed of the synchronous rotation is associated with the switching speed of the integral imaging source of the 2D image display module. For a 3D image reconstructed in a single visual area range, crosstalk created by the diffuse reflective feature of pixels on a 3D image in other visual areas can be eliminated, thereby improving the viewing experience.

Abstract: A novel projection system includes first and second light sources (e.g., sets of lasers), a spatial light modulator (SLM) that receives light from the first light source, and a beam steering device that receives light from the second light source and steers the light to highlight regions of the SLM. The SLM then modulates the light from both light sources to generate a highlighted imaging beam which can then be projected on a viewing surface. The highlighted imaging beam can represent a highlighted 2D image or a highlighted left- or right-eye view of a 3D image. The projection system thus improves peak brightness in the displayed highlighted images without incorporating a separate highlight projector or other expensive equipment. Methods for highlighting projected images are also described.

Abstract: Implementations of angle-enhancing screens are disclosed herein. The angle-enhancing screens increase the field of view of an image projected thereon by a projection lens while maintaining an increased size of the projected image, by decreasing the size of picture elements making up the image while maintaining their pitch. In some embodiments, the angle-enhancing screen includes a field lens, such as a Fresnel field lens, for straightening the views of light projected thereon and a double lenslet array of matched lenslet pairs, each of the pairs including either two positive lenslets or one positive and one negative lenslet, for increasing the field of view. In another embodiment, the angle-enhancing screen may include a field lens and an array of four positive lenslet quartets. In a further embodiment, the field lens may be replaced with a Gabor superlens including two lenslet arrays of different pitches.

Abstract: A display system for presenting three-dimensional images. The display system includes projection unit including projection subassemblies, wherein each projection subassembly includes array of point-like light sources, spatial light modulator and controller; projection screen; and processor. The processor is configured to: process three-dimensional data pertaining to a scene to generate image data of three-dimensional image; and display three-dimensional image, via projection subassemblies of the projection unit, wherein, in each of projection subassemblies, the controller is configured to multiplex operations of individual point-like light sources of the array and the spatial light modulator in a time-sequential manner, based on the image data of three-dimensional image, to display a plurality of segments of three-dimensional image sequentially.

Abstract: A cone for use in a Pepper's Ghost illusion includes a conical wall of semi-reflective material, and an attachment member for removably attaching the cone to the surface of a light emissive display, and a method of displaying a Pepper's Ghost illusion includes positioning a cone of semi-reflective material onto a light emissive display; and displaying on the light emissive display an image that has been distorted by an inverse of a distortion caused by a reflection of the cone.

Abstract: A display device has an image processing unit that determines an error for a pixel location that is based on the difference between an input color dataset and an output color dataset. The error is fed back to the image processing unit to propagate and spread across other neighboring pixel locations. In generating the output color dataset, an error-modified dataset that includes the input dataset and the error may first be generated. The error-modified dataset is examined to ensure the color values fall within the display gamut. The color dataset is also quantized and dithered to make the output dataset having a bit depth that is compatible with what the light emitters can support. Lookup tables and transformation matrices may also be used to account for any potential color shifts of the light emitters due to different driving conditions such as driving currents.

Abstract: A stereo imaging system having convergence angle and disparity control includes a pair of pivoting folded-parallel-light-channel (FPLC) units arranged to provide a virtual left side view and a virtual right side view of a scene. Each FPLC unit includes a fixed lens unit adapted to focus reflected light including an image of a scene to an image sensor and a laterally translatable light-redirecting unit including a reflector adapted to define a parallel image reflection path to the fixed lens unit via a collimated light beam defined by substantially parallel light beams. The stereo imaging system further includes a disparity-adjusting mechanism adapted to alter a distance between the pair of pivoting FPLC units and a convergence-angle-adjusting mechanism adapted to pivot the pivoting FPLC units.

Abstract: A 3D display system includes a rotational base, a 3D projecting device, an image capturing device, and a controller. The 3D projecting device is rotatably disposed on the rotational base. The image capturing device is disposed on the 3D projecting device. The controller is electrically connected to the image capturing device, the rotational base, and the 3D projecting device.

Abstract: A projection device includes a laser light source and a wavelength conversion assembly. The laser light source is configured to emit a first laser light having a first wavelength. The wavelength conversion assembly is configured to convert a first portion of the first laser light into a second laser light, wherein the second laser light has a second wavelength different from the first wavelength. The second laser light is reflected back to an upstream optical path of the wavelength conversion assembly through the wavelength conversion assembly, and a second portion of the first laser light is reflected to a downstream optical path of the wavelength conversion assembly through the wavelength conversion assembly.

Abstract: A stereoscopic image display apparatus that is capable of being efficiently aligned using a remotely controlled alignment function and a method of displaying a stereoscopic image using the same are disclosed.

Abstract: A light filed (LF) display system for displaying holographic content (e.g., a holographic film or holographic content to augment a film) to viewers in a cinema. The LF display system in the cinema includes LF display modules tiled together to form an array of LF modules. The array of LF modules create a holographic object volume for displaying the holographic content in the cinema. The array of LF modules displays the holographic content to viewers in viewing volumes. The LF display system can be included in a LF film network. The LF film network allows holographic content to be created at one location and presented at another location. The LF film network includes a network system to manage the digital rights of the holographic performance content.

Abstract: An entertainment enhancement system includes an infrared projection system configured to output an infrared image to a target surface. The infrared projection system includes a controller configured to coordinate projection of the infrared image with a separate action by generating instructions for projecting the infrared image based on data received by the controller indicative of an active status of the separate action and an infrared emitter configured to receive the generated instructions and emit the infrared image to the target surface. The system also includes a viewing device configured to be wearable by a user. The viewing device includes at least one lens and a filter assembly configured to shift the infrared image from an infrared frequency to a visible light frequency such that the infrared image is viewable on the target surface via the viewing device.

Abstract: Laser or narrow band light sources (e.g., red, green, and blue) are utilized to form left (e.g., R1, G1, B1) and right (e.g., R2, G2, B2) images of a 3D projection. Off-axis viewing of the projections which has the potential to cause crosstalk and/or loss of energy/brightness in any channel or color, is eliminated (or reduced to only highly oblique viewing angles) via the combined use of any of guard bands between light bands of adjacent channels, curvature of viewing filters, and selection of passband wavelengths that maximize usability of the passband as it “shifts” due to varying or increasing angles of off-axis viewing. Implemented with any number of light sources, the light sources selected may also be converted to showing 2D images where the additional light sources are utilized to affect a desirable increase in color gamut.

Abstract: As a technology for preventing the leaking of confidential information more properly, provided is a work recording apparatus including: a recording control unit configured to record a work situation; a position detection unit configured to detect a position; and a usable function restriction unit configured to specify an applicable predetermined state through use of the position detected by the position detection unit and restrict a part or all of functions of the recording control unit based on the specified applicable predetermined state.

Abstract: An improved virtual reality system comprising an immersive sound system, sensors, a power source, communications, data processing, and an optical system that delivers photoreceptor density resolution, wide angle, high contrast, binocular vision, continuous depth of field, and stabilized images that are closely synchronized with the vestibulo-ocular reflex, providing a comfortable, fully immersive experience. In one embodiment, a miniaturized array of projectors is arranged to cover the retina with adjoining image segments. Each projector provides full spectrum, amplitude modulated, and controllably divergent beams of light that are subsequently reflected off a compound curved reflector, through additional optics, and along reversible light paths to form images on the retina.

Abstract: An illumination system and a projection device are provided. The illumination system includes at least one laser light source providing at least one laser beam and a polarizing rotation module including a first axle, a first driving element, and a polarizing element. The first axle has a first revolution frequency. The polarizing element is disposed on a transmission path of the laser beam. The first driving element causes the polarizing element to rotate in a temporally sequenced manner. When the polarizing element is rotated, the laser beam is transmitted to the polarizing element at a specific frequency in a plurality of first time periods. The laser beam passing through the polarizing element has different polarizing states at different times. The specific frequency and the first revolution frequency of the first axle are not exactly divisible by each other. The invention can generate an image with uniform polarizing direction.

Abstract: The invention relates to a system for forming a floating image, including: at least one image projector, a display screen including transparent segments and scattering segments, and a semi-reflective structure placed between the image projector and the display screen, including a face, termed the transmission face, suitable for transmitting light beams coming from the image projector and light beams coming from the scene to be observed, and an opposite face, termed the reflection face, suitable for reflecting light beams coming from the display screen, so as to form a virtual image, termed the floating image, of the image projected onto the display screen.

Abstract: A display device has a projector having a light guide plate that guides light incident from an end portion and deflects the light guided to emit the light from a projection surface facing a viewer in a first direction, the projector being configured to emit light from the projection surface to project an image in a space viewable by the viewer, and a rotator configured to rotate the projector around the first direction. When a first end on the projection surface is located at a first position being an upper side in a second direction orthogonal to the first direction, the image is viewed as a stereoscopic image by the viewer. When the rotator rotates the projector and the first end is located at a second position different from the first position, the image is viewed as a planar image by the viewer.

Abstract: A novel light source for a 3D display system includes a plurality of left eye light emitters and a plurality of right eye light emitters. The left eye emitters include a broad spectral distribution emitter and an overlapping narrow spectral distribution emitter in each of the blue, green, and red color bands. Similarly, the right eye emitters include a broad spectral distribution emitter and an overlapping narrow spectral distribution emitter in each of the blue, green, and red color bands. The combined spectral distributions of each of the broad and narrow emitters provide a primary light for each color and for each eye that has a desirable spectral shape, including wide bandwidth and short tail(s). The invention thus minimizes cross-talk and speckling in left- and right-eye images of 3D display systems.

Abstract: An optionally transferable optical system with a reduced thickness is provided. The inventive optical system is basically made up of a synthetic image presentation system in which one or more arrangements of structured image icons are substantially in contact with, but not completely embedded within, one or more arrangements of focusing elements. The focusing element and image icon arrangements cooperate to form at least one synthetic image. By way of the subject invention, the requirement for an optical spacer to provide the necessary focal distance between the focusing elements and their associated image icon(s) is removed. As a result, overall system thicknesses are reduced, suitability as a surface-applied authentication system is enabled, and tamper resistance is improved.

Abstract: The problem of 3D panel display systems either (a) requiring special glasses to separate left and right viewing images, or (b) having auto-stereoscopic 3D with compromised fidelity, is solved by providing a projection three dimensional (3D) display system for providing glass-free, 3D display to a plurality of viewing volumetric pairs (VVAs) in space corresponding to a hypothetical plurality of viewers' eye aperture pairs, the projection 3D display system comprising: (a) a dual-image projector configured to project both a left viewing tri-color image and a right viewing tri-color image; and (b) means for (1) receiving a tri-color mixed input beam encompassing the left and right viewing tri-color images, (2) multiplying the tri-color mixed input beam into a plurality of tri-color mixed output beams, and (3) focusing the plurality of tri-color mixed beams for viewing at the VVAs.

Abstract: A projection device includes an illumination system, a light valve, and a projection lens. The illumination system includes an excitation light source, a wavelength conversion element, a light converging lens, and a light integration rod. The excitation light source provides an excitation beam. The wavelength conversion element converts the excitation beam into a conversion beam. A greatest width in a light spot formed on the wavelength conversion element by the excitation beam is a first distance. A greatest width in a light spot formed on the wavelength conversion element by the conversion beam is a second distance. The second distance is greater than the first distance. The light integration rod receives the conversion beam from the light converging lens. The conversion beam generated by the wavelength conversion element of the invention is effectively projected to the light integration rod.

Abstract: The disclosed technology generally relates to displays, and more particularly to display screens configured to display images having a shaped light profile. A display screen comprises a retroreflective display medium configured to display an image by retroreflectively reflecting incident light from a light source. The display screen additionally comprises a light profile shaping medium interposed between the retroreflective display medium and the light source. The light profile shaping medium is configured to shape an intensity distribution of light reflected from the retroreflective display medium prior to displaying the image to a viewer.

Abstract: A memory comprising an array of memory cells, each memory cell comprising: first and second resistive storage elements each having at least first and second terminals; and a first transistor having: a first main conducting node connected to the first terminal of the first resistive element and to a first column/row line of the array; and a second main conducting node connected to the first terminal of the second resistive element and to a second column/row line of the array.

Abstract: Synchronizing of perceived sound with a moving holographic object. When a holographic object is generated in a first position, an autonomous aerial vehicle (AAV) is positioned such that a speaker coupled to the AAV generates sound perceived to come from the holographic object in the first position. When the holographic object is generated in a second position, flight of the AAV is utilized to synchronize the AAV with the holographic object such that the sound generated from the speaker is perceived to come from the holographic object in the second position.

Abstract: A display device includes a display panel including a plurality of pixels, a first driving circuit configured to operate to display an image through the plurality of pixels, and a shutter panel including a plurality of shutter pixels and configured to be periodically refreshed. The first driving circuit is operated to display a second image corresponding to a second image signal through the display panel when a difference in brightness between a first image signal of a present frame and the second image signal of a previous frame is greater than a predetermined level and to display a first image corresponding to the first image signal through the display panel when the shutter panel is refreshed.

Abstract: Some embodiments of the present disclosure provide a prismatic AR display device comprising an LCOS display chip, a polarization beam splitter (PBS), a double cemented lens, a first single lens and a beam splitting prism sequentially arranged along a first axis, and LCOS lighting apparatus arranged on a second axis perpendicular to the first axis and is close to the PBS. A negative lens in the double cemented lens is close to the PBS, and a positive lens in the double cemented lens is close to the first single lens; a first light incident surface of the beam splitting prism is close to the first single lens, and an optical axis of the first light incident surface coincides with that of the first single lens; and an optical axis of a second light incident surface of the beam splitting prism is perpendicular to that of the first light incident surface.

Abstract: The projection method obtains a circular-screen projection surface by dividing a visual platform to be projected, arranges each optical machine to be arranged according to maximum optical path distance information that each optical machine to be arranged projects an image onto each circular-screen projection surface to obtain a first projection coverage range, and adjusts the first projection coverage range according to setting parameters corresponding to each optical machine to be arranged and in accordance with a preset projection surface to obtain a second projection coverage range. The projection method calculates geometric parameters and the second projection coverage range of each optical machine to be arranged to obtain a spatial position and a rotation angle range of each optical machine to be arranged.

Abstract: A three-dimensional display system is provided. The three-dimensional display system includes: a projection body having a three-dimensional shape and a transflective property; an optical reflector including at least one reflection surface; a first driving structure for driving the projection body or the optical reflector to rotate, so that the projection body and the optical reflector rotate relative to each other; an image processor for decomposing a three-dimensional image of an object to obtain multiple two-dimensional images at different cross-sections of the three-dimensional image, and sending the two-dimensional images to at least one projector configured to project the two-dimensional images onto one of the at least one reflection surface in sequence at a regular interval, and reflect the two-dimensional images to different positions on the projection body by means of the at least one reflection surface, to form the three-dimensional image.

Abstract: A novel light source for a 3D display system includes a plurality of left eye light emitters and a plurality of right eye light emitters. The left eye emitters include a broad spectral distribution emitter and an overlapping narrow spectral distribution emitter in each of the blue, green, and red color bands. Similarly, the right eye emitters include a broad spectral distribution emitter and an overlapping narrow spectral distribution emitter in each of the blue, green, and red color bands. The combined spectral distributions of each of the broad and narrow emitters provide a primary light for each color and for each eye that has a desirable spectral shape, including wide bandwidth and short tail(s). The invention thus minimizes cross-talk and speckling in left- and right-eye images of 3D display systems.

Abstract: An illumination device is provided, including a coherent light source that emits coherent light beam and an optical device that diffuses the coherent light beam. The optical device includes a first diffusion region that diffuses the coherent light beam to illuminate a first area, and a second diffusion region that diffuses the coherent light beam to display predetermined information in a second area. A timing control unit individually controls a light emission timing at which the coherent light source emits the coherent light so that the coherent light is irradiated to the first diffusion region and the second diffusion region, an incident timing at which the coherent light from the coherent light source is incident on the first diffusion region and the second diffusion region, or an illumination timing at which the coherent light diffused by the optical device illuminates the first area and the second area.

Abstract: One embodiment provides a method, including: receiving, at an information handling device, user input to generate a three dimensional projection of an object in physical space; generating, using a projection source, a plurality of perspective views of the object, wherein each of the plurality of perspective views is associated with a different angle of the object; and providing, using the plurality of perspective views, the three dimensional projection of the object at a predetermined location in the physical space using at least one reflective surface. Other aspects are described and claimed.

Abstract: An autostereoscopic display system includes a display including a plurality of addressable pixels. Each of the plurality of pixels includes two or more sub-pixels. The display is adapted to have n views in the horizontal direction wherein n is an integer greater than or equal to 2. A native pixel density of the display in the horizontal direction divided by n is greater than 75% of a native pixel density in the vertical direction. The system further includes a view selector that, for each of two or more viewing perspectives, makes one of the views visible and a multiplexer system in operative connection with the display. The multiplexer system is adapted to controllably shift light horizontally from at least one of the plurality of pixels.

Abstract: According to one implementation, an image display system includes a computing platform having a hardware processor and a system memory storing a software code, a display coupled to the computing platform, and a visual filter and at least partially surrounding the display and having an opaque mode and a transparent mode. The hardware processor executes the software code to set the visual filter to the opaque mode to obscure the display. The hardware processor also executes the software code to generate a visual image using the display, to obtain an operating parameter of the image display system corresponding to a status of the display, and to detect that the operating parameter meets a predetermined criterion. In response to detecting that the operating parameter meets the predetermined criterion, the hardware processor further executes the software code to set the visual filter to the transparent mode to make the display visible.

Abstract: Apparatuses and methods for improving the accuracy of an analyte sensor are disclosed. The sensor may include a photodetector and a low angle sensitive (LAS) optical filter. The photodetector may be configured to convert received light into current indicative of the intensity of the received light. The LAS optical filter may be configured to prevent light having a wavelength outside a band pass region from reaching the photodetector and to pass light having a wavelength within the band pass region to the photodetector. The percentage of light passing through the LAS optical filter may decrease as the angle of incidence of the light increases.

Abstract: A projection apparatus that projects a projection image includes a first panel, a second panel, a projection optical system that projects light that has passed through the first panel and the second panel, an information acquisition unit that acquires light reduction information of a region which is a part of the projection image and overlaps with an image projected by another projection apparatus, and a panel control unit that controls the first panel based on data of the projection image and controls the second panel based on the light reduction information.

Abstract: A projection system is provided, including: a projection unit to output a projection image; a retardation plate arranged obliquely with respect to an optical axis of the projection image, the retardation plate to modulate a polarization state of the projection image incident thereon; a reflective polarizing plate stacked on a side of the retardation plate opposite to that on which the projection image is incident, the reflective polarizing plate to reflect a first polarization component of the projection image transmitted through the retardation plate; and a retro-reflective element provided along a direction in which the projection image is reflected by the reflective polarizing plate, the retro-reflective element to output reflected light against a direction in which the light is incident, wherein the reflective polarizing plate transmits a second polarization component of the projection image reflected by the retro-reflective element and modulated by the retardation plate.

Abstract: A projector that projects an image includes a communication section that sends a projection request command that requests another projector connected to the projector to project a test image, an imaging section that captures an image of the test image projected in response to the projection request command by the another projector, and a layout recognition section that recognizes a relative layout relationship between the projector and the another projector based on the image captured by the imaging section.

Abstract: Laser or narrow band light sources (e.g., red, green, and blue) are utilized to form left (e.g., R1, G1, B1) and right (e.g., R2, G2, B2) images of a 3D projection. Off-axis viewing of the projections which has the potential to cause crosstalk and/or loss of energy/brightness in any channel or color, is eliminated (or reduced to only highly oblique viewing angles) via the combined use of any of guard bands between light bands of adjacent channels, curvature of viewing filters, and selection of passband wavelengths that maximize usability of the passband as it “shifts” due to varying or increasing angles of off-axis viewing. Implemented with any number of light sources, the light sources selected may also be converted to showing 2D images where the additional light sources are utilized to affect a desirable increase in color gamut.

Abstract: An energy optimized imaging system that includes a light source that has the ability to illuminate specific pixels in a scene, and a sensor that has the ability to capture light with specific pixels of its sensor matrix, temporally synchronized such that the sensor captures light only when the light source is illuminating pixels in the scene.