Abstract: A laser projector has a cursor control unit, a main control unit, a laser generator and a scanning lens. The cursor control unit is used to generate and transmit cursor signals; the main control unit is used to obtain and process video signals and the cursor signals, both of which are combined into cursor video signals and transmitted; the laser generator is coupled to the main control unit for generating and projecting laser beam according to the cursor video signals; and the scanning lens is coupled to the main control unit for receiving the laser beam and projecting it outward in a predetermined scanning manner. The laser projector of the present invention uses laser resource itself to project laser cursor generated by the cursor control unit onto a screen, so that it is unnecessary to additionally use a laser pointer, and the operation of the laser projector is relatively simple.

Abstract: An information processing apparatus that includes a main body, a member movably attached to the main body, a first detector configured to detect an orientation of the member with respect to the main body, a second detector configured to detect whether the main body is connected to a cradle apparatus, and a processor configured to output a command for controlling an operation of a projection device based on an output of the first and second detectors.

Abstract: A digital display for viewing images generated by a remote video source. Light collected by a lens is focused and passed through one polarizer filter and is focused through a digital device comprising an array of pixels of which each may be fitted with a micro lens. The light is passed through the digital device, then through a second polarizer filter. A relay lens which may alter image size, transfers the image to a micro-resolution screen surface whose surface features are as small as possible and preferably under 0.5 microns in size. The micro-resolution screen surface acts as a rear projection screen which, due to its structure, achieves near Lambertian illumination. A viewing lens is focused on the image plane of the micro-resolution screen surface for viewing by the user. In one embodiment, the digital device is an LCD that is transmissive and the viewing lens is a biocular lens. The source of the signals to be used to generate the images, may be a computer or a camera.

Abstract: A projector includes: a projection lens which includes a zoom mechanism capable of controlling a projection view angle; a zoom drive unit which drives the zoom mechanism; a zoom amount storing unit which stores a zoom amount provided by the zoom drive unit; an operation signal receiving unit which receives a predetermined operation signal; and a zoom control unit which controls the zoom drive unit in such a manner as to set an initial zoom condition determined based on the zoom amount stored in the zoom amount storing unit when the operation signal receiving unit receives the predetermined operation signal.

Abstract: A video display system of the present invention includes (i) a projector that generates a display image in accordance with a digital video signal and (ii) a screen on which an image generated by the projector is projected and displayed. Provided behind the screen is an infrared-emitting unit that emits infrared light through a video display surface during a period of time in which a picture is being displayed on the screen. This allows invisible light to be emitted through a video display section such as a screen together with a displayed image, thereby degrading the image quality of a re-shot picture and rendering use of re-shot image content impossible.

Abstract: It is intended to provide a digital planetarium picture-projecting apparatus capable of recording and executing an operation procedure, facilitating recording of the operation procedure, editing the operation procedure, and executing an ad-lib representation when the operation procedure is executed. The digital planetarium picture projecting apparatus comprises an operating portion which accepts an operation by an operator about picture projection, an operation display panel which displays information about picture projection to the operator, a manual process recording portion which records an operation procedure executed to the operating portion, and a control portion which executes picture projection according to the operation procedure recorded in the manual process recording portion, wherein a temporary stop or restart operation by the operator is accepted during recording of the operation procedure by the manual process recording portion.

Abstract: A projection system comprising an information processing apparatus capable of processing image data and a projector capable of performing a display process on the image data processed by the information processing apparatus, when the bit number representing the number of gradations of pixel data transmitted from the information processing apparatus to the projector is n-bit and the bit number representing the number of gradations which can be expressed by the projector is m-bit (m>n). The image processing apparatus outputs image data where m-bit pixel data is divided into k-pieces of pixel data of at most n-bits, and the projector synthesizes the k-pieces of pixel data based on a set synthesis rule to generate the m-bit pixel data in the pixel.

Abstract: A video projector device includes a visible light projector to project an image on a surface or object, and a visible light sensor, which can be used to obtain depth data regarding the object using a time-of-flight principle. The sensor can be a charge-coupled device which obtains color images as well as obtaining depth data. The projected light can be provided in successive frames. A frame can include a gated sub-frame of pulsed light followed by continuous light, while the sensor is gated, to obtain time of flight data, an ungated sub-frame of pulsed light followed by continuous light, while the sensor is ungated, to obtain reflectivity data and a background sub-frame of no light followed by continuous light, while the sensor is gated, to determine a level of background light. A color sub-frame projects continuous light, while the sensor is active.

Abstract: A projector includes an interface unit, a control unit, and a projection unit. The interface unit includes a plurality of ports, each of which connects to a corresponding connector to allow the projector to connect to a corresponding signal source. The control unit identifies format of information read from the corresponding signal sources via the interface unit and identifies which port is connected. The projection unit projects a menu image, the menu image comprising a plurality of icons, each associated with a corresponding port and configured for indicating connection states of the corresponding ports.

Abstract: A projection apparatus comprises a receiver, a processor, and a frame projector. A sensor detects a horizontal position of a user in front of a screen and transmits a horizontal position signal. The receiver receives the horizontal position signal. The processor generates an on screen display (OSD), and superimposes the OSD onto a projection frame. The frame projector projects the superimposed frame onto the screen. During projection, the OSD covers the face of the user.

Abstract: In a rear-projection TV system in which the image is generated by an optical engine and projected through a mirror towards a diffusion plate screen, picture quality adjustment is undertaken at the optical block level to reduce the distance between the adjustment device and screen and thereby improve production throughput in the dark room in which the adjustments are made.

Abstract: The disclosed embodiments relate to a system and method for medium wide angle projection system. An exemplary embodiment of the present technique comprises an imaging system configured to create an image, at least one lens configured to produce a medium wide-angle representation of the image, and an aperture stop positioned to capture the medium wide-angle representation of the image from the at least one lens.

Abstract: An image projection apparatus includes an image processing device, an illuminating device, a light valve, and a projection optical system; wherein the projection optical system is formed in such a way that at least one of a first deviation corresponding to an amount of the magnification chromatic aberration of a light having a central wavelength of the red light relative to the green light and a second deviation corresponding to an amount of the magnification chromatic aberration of the blue light relative to the green light is larger than a fixed-pixel pitch, and a third deviation corresponding to an amount of the magnification chromatic aberration of a light having a maximum wavelength of the red light relative to a light having a minimum wavelength of the red light is not larger than the fixed-pixel pitch; wherein the first deviation and/or the second deviation is eliminated by supplying the compensated video signal to the light valve.

Abstract: A scanning image display apparatus includes: a scanning unit rotating a mirror to scan a light flux from a light source; an input unit to input a display condition of an image; and a controller changing a rotation angle of the mirror in the scanning unit in accordance with a signal from the input unit. According to the scanning image display apparatus, the display condition (e.g., size, aspect ratio) of the image can be changed without using trimming.

Abstract: A novel handheld media and communication device with a detachable projector unit is disclosed. A media library for media assets is included in a file storage system of the projector unit while metadata of the assets is stored in a file storage system of the media and communication device. The device is used as a remote control device to control the operation of delivering media assets through the projector unit after the unit is detached from the device. The projector unit may also be used to connect to a media delivery unit such as a desktop projector, a TV terminal or an audio system for delivering media assets.

Abstract: A mobile electronic device 10 includes a projector 34, a camera 36, and a processing unit 22. The projector 34 projects an image, and the camera 36 captures the image projected by the projector 34. Based on first image information for causing the projector 34 to project a predetermined image and second image information obtained by capturing the image projected by the projector 34 based on the first image information by the camera 36, the processing unit 22 determines whether the projector 34 projects the predetermined image. When determining that the projector 34 fails to project the predetermined image, the processing unit 22 suppresses output of the projector 34 for projecting the image.

Abstract: Various embodiments for image pixel transformation are disclosed.

Abstract: A video projector including a plurality of light sources is configured to project and display an image using light emitted from at least one of the light sources so that each light source is replaceable while other light sources are lit. The video projector includes a light source replacement detection unit that detects replacement of one or more light sources, a memory unit that stores information related to a combined lighting state of the light sources, and a control unit that changes the combined lighting state of the light sources when the replacement of at least one light source is detected without displaying, on the projected image, a setting screen used to change the combined lighting state.

Abstract: A method for correcting distortion of an image projected by a projector includes: a first detection image data producing step which produces first detection image data containing marker images; a first detection image displaying step which displays a first detection image; a first image comparing step which compares the first detection image with the first detection image data; an area selecting step which selects an area having larger distortion of the detection image than distortion in other area based on the comparison; a second detection image data producing step which increases positioning density of the marker images in the selected area to produce second detection image data; a second detection image displaying step which displays the second detection image; a second image comparing step which compares the second detection image with the second detection image data; and an image correcting step which corrects the projection image.

Abstract: A device for projecting images from a video generating device such as a computer, television receiver, or similar device onto a screen or other surface is described in this invention. The device uses a rotating disk containing numerous lenses to direct a light beam from a laser or other light source towards the screen. In one embodiment, a pulsed laser light from red, green, and blue lasers are combined into a single light pulse that is transmitted through the rotating disk that transmit each light pulse to a specific location on the screen.

Abstract: In an image displaying apparatus, first and second detecting units detect quantities of light propagating through a light path at two different locations. A variation calculating unit calculates the variation in the light quantity in the light path based on the quantities of light detected by each of the first and second detecting units. A controlling unit controls the quantity of light propagated to the screen if the variation in the light quantity exceeds a predetermined value.

Abstract: An integrated system comprises a light valve and an image sensor for image display and image capture. The image sensor and the light valve share a common dual-function lens by positioning the light valve and image sensor at locations offset from the optical axis of the dual-function lens.

Abstract: The invention Echo Light Complex relates to broadcasting media content to passengers, of vessels or tools for transport. The term vessel will throughout this document and henceforth, be used as a general term for any tool, machine, vehicle, train, vessel, ship, aircraft, and any utility used for transport, whether it be on ground, on water or in air, whether it be with passengers or without. The invention Echo Light Complex broadcast media content to passengers of vessels by displaying visual media content on the surroundings of the tool for transport or vessel, with the help of projectors so that it can be viewed from inside the transport tool by the passengers. Meanwhile an audio signal is wirelessly transmitted, to enable the passengers to receive the audio content associated with the visual media being displayed.

Abstract: According to one embodiment, an image projector has a spatial light modulator (SLM) adapted to modulate illumination from a laser with a spatial pattern such that the modulated illumination projects an image on a viewing screen. The image projector further has an optical diffuser located on an optical path between the laser and the SLM. The laser is adapted to illuminate the SLM through the optical diffuser to create an illuminated area at the SLM. The optical diffuser is adapted to introduce an angular spread into the light transmitted therethrough. The image projector is adapted to move the illuminated area with respect to the SLM to mitigate speckle in the projected image.

Abstract: Systems and methods for a device with a user interactive image projector disposed in a distal end of the device from the user are described. In one aspect, the device is operatively configured to project at least a portion of a user interactive image on a projection surface separate from the device. The device locks at least a portion of the projected user interactive image with respect to the projection surface. Responsive to receiving user input, the device allows the user to navigate the user interactive image in accordance with the user input.

Abstract: A projection electronic book, having: an electronic paper device, used for displaying an image on an electronic paper panel according to an image information received via an electronic paper input port; a control unit, having an audio/video input port, a first display output port and a second display output port, the audio/video input port being used to receive a video information and/or an audio information, the video information being output via the first display output port or the second display output port, and the first display output port being coupled to the electronic paper input port; an audio/video storage unit, coupled to the audio/video input port to supply the video information and/or the audio information; and a micro projector, coupled to the second display output port for receiving the video information, being used to project an image according to the video information.

Abstract: A projection system uses a transformation matrix to transform a projection image p in such a manner so as to compensate for surface irregularities on a projection surface. The transformation matrix makes use of properties of light transport relating a projector to a camera. A display pipeline of user-supplied image modification processing modules are reduced by first representing the processing modules as multiple, individual matrix operations. All the matrix operations are then combined with, i.e., multiplied to, the transformation matrix to create a modified transformation matrix. The created transformation matrix is then used in place of the original transformation matrix to simultaneously achieve both image transformation and any pre and post image processing defined by the image modification processing modules.

Abstract: A beam projection apparatus and method with automatic image adjustment. A beam projection apparatus includes an actuator module being operable to move the beam projection apparatus, a beam projector being operable to project images, and a control module being operable to search surrounding structures around the beam projection apparatus and select a plane portion of the surrounding structures as a screen, to control the actuator module to move the beam projection apparatus for image display on the selected plane portion, and to control the beam projector to project the images on the selected plane portion.

Abstract: Embodiments include systems and methods for reducing visible artifacts such as Moiré, or interference, patterns, in displays. One embodiment includes a display device comprising a plurality of light modulators and a plurality of illumination elements configured to direct light to the light modulators. The directed light of the plurality of illumination elements collectively defines an nonuniformly varying pattern of light.

Abstract: A combination display is provided. The combination display includes a front projector and a direct-view screen having a shared video processing system.

Abstract: A laser projection system includes a light source, a speckle reduction adjustable optical component and a scanning adjustable optical component. The light source includes at least one laser configured to emit an output beam. The speckle reduction adjustable optical component rotates about a speckle reduction axis. The scanning adjustable optical component rotates about two axes. The laser projection system is programmed to generate a scanned laser image on the projection surface by operating the laser for optical emission of encoded image data and controlling the scanning adjustable optical component to rotate about the two axes to scan the output beam in first and second directions. The laser projection system is also programmed to rotate the speckle reduction adjustable optical component and the scanning adjustable optical component such that the output beam illuminates common portions of successive image frames at a different angle of incidence on the projection surface.

Abstract: A combination mirror and media display device assembly is provided. The combination mirror and media display device includes a mirror platform having a media display device viewing area and a media display device coupled to the mirror platform. The media display device is positioned to display images through the media display device viewing area.

Abstract: This invention describes an apparatus, methods and a system for high speed hierarchical multiplexing the native color primaries of SSL-based display systems in order to improve color quality and stability as well as brightness and the efficiency of the display system.

Abstract: Provided is a multiprojection display system that includes a plurality of cameras installed in positions in which the cameras can capture images of image-capturing regions including marks whose visible light reflection ratio is higher than the projection region or support members whose ratio to reflect visible light is different from the projection region. An image processing circuit detects prescribed positions and positions of vertexes of projected images from data indicating the images captured by the cameras, and outputs data indicating the detected prescribed positions and image edge data indicating the positions of the vertexes of the to projected images. A control unit adjusts, when the Positions of the vertexes of the projected images shift from the prescribed positions corresponding to the vertexes, the positions and sizes of the projected images so that the positions of the vertexes of the projected images can be matched with the prescribed positions.

Abstract: A projection system distributed on a network, the projection system comprising a projection server and at least one projection client. The projection client hosts a projector array of multiple projectors which together project a tiling of an image onto a projection surface. The projection server accepts an incoming request from the projection client via the network, the request providing the projection server with area information for a projection area of the projector array onto the projection surface. The projection server determines a layout for the image by calculations using the area information. Layout information based on the layout is transmitted via the network to the projection client in response to the request, and image data is projected in accordance with the layout information received from the projection server.

Abstract: A projector selection system selects one of projectors from a computer which is connected to the projectors through a network. An identifier is displayed on each of the projectors by identifier assigning means and identifier display means. A preview image, which is a scale-down version of an image displayed on the screen by the projector, is acquired by preview image generating means and preview image transmitting means. The preview image is displayed on a dialog display area on the screen of the computer.

Abstract: A projection apparatus for producing color images having reduced speckle artifacts comprising: at least three narrow band light sources having first, second and third visible wavelength bands; a digital image source providing color digital image data; at least one spatial light modulator for forming a color image using light responsive to the color digital image data; a projection display surface including a reflective layer that reflects incident illumination in the first, second, and third wavelength bands; and a fluorescent agent that absorbs a fraction of the incident light in the first visible wavelength bands and emits light in a corresponding first emissive visible wavelength band; and a projection lens that projects the color image onto the projection display surface; wherein return light from the projection display surface contains light in both the first incident visible wavelength band and the first emissive visible wavelength band, thereby reducing speckle artifacts.

Abstract: There is provided a system and method for multiple sided video projection mapping on arbitrarily shaped objects. By using the same shape data to manufacture the object and to configure the projection mapping onto the object, stray light, reflections, and other distortions can be reduced or eliminated. By constructing the object using a non-opaque layer and a projection coating layer, video content projected onto the object can be seen on multiple sides. Thus, the number of projectors required for multi-sided viewing can be reduced, simplifying deployment and reducing costs. The invention may be of particular use for retail spaces or other public venues where display of image or video content for information, entertainment, or atmosphere enhancement is desirable.

Abstract: The invention relates to methods to improve SLMs, in particular to reflecting micromechanical SLMs, for applications with simple system architecture, high precision, high power handling capability, high throughput, and/or high optical processing capability. Applications include optical data processing, image projection, lithography, image enhancement, holography, optical metrology, coherence and wavefront control, and adaptive optics. A particular aspect of the invention is the achromatization of diffractive SLMs so they can be used with multiple wavelengths sequentially, simultaneously or as a result of spectral broadening in very short pulses.

Abstract: An air filter cleaner includes an air filter that captures dust. A brush cleans the air filter. A dust box collects dust from the brush. A rotary shaft rotates the brush. A moving mechanism moves the brush and the dust box using the rotation of the brush. A one-way clutch connects the brush and the rotary shaft.

Abstract: A rear-type projection board apparatus (rear-surface projection-type video display apparatus), of new structure, having no necessity of a housing, being superior in portability, cheaply producible, comprises a transmission-type screen 130, being disposed within an interior space, under a condition of exposing both surfaces thereof in the space, and for transmitting a visual light projected onto a rear surface therethrough, so as to display it on a video display surface on a front surface, and a video projection apparatus (projector) 102, being disposed at a predetermined position on a rear surface side of the transmission-type screen, and for projecting the visual light from a rear surface of the transmission-type screen, enlargedly, wherein the transmission-type screen has a Fresnel lens 166 (136) having Fresnel lens surfaces, covering over an entire light receiving surface for receiving the visual light, which is enlargedly projected from the video projection apparatus, whereby guiding the visual light rece

Abstract: A projection system that projects coherent light rays from a coherent light (e.g., laser) source onto an inner reflective surface of a three-dimensional viewing space is disclosed. A relatively compact and low-power laser light image can thereby be formed and seen by an observer from inside the viewing space. Raster scanning or simultaneous projection onto large solid angles of said viewing space are possible. Useful and entertaining information can also be displayed, optionally as dynamic and moving images, onto the projection screen as well.

Abstract: A projection video display device is provided with a projection unit configured to project a video onto a screen via a lens; and an image pickup unit configured to image the screen. A brightness component selection unit receives an image imaged by the image pickup unit when reference light is projected onto the screen and select, of brightness components of pixels forming the image, a brightness component having the maximum value. An exposure correction unit originates a signal for adjusting exposure time in an image pickup device in the image pickup unit with reference to the selected brightness component. A color correction unit receives an image captured by the image pickup unit after the adjustment and corrects the video so that the brightness components are in equal proportion.

Abstract: A device and system which control a projector based on the DMX protocol includes a DMX signal receiving and processing circuit, an MCU microprocessor circuit, a DSP image processing circuit, a projection module device circuit, a DMX signal input port, a storage equipment port, an analogue video input port and a digital video input port. The DMX signal receiving and processing circuit includes the DMX signal input port, the MCU microprocessor circuit is connected with the DSP image processing circuit and the projection module device circuit, the DSP image processing circuit is connected with the storage equipment port, whereas the projection module device circuit is connected with the analogue video input port and the digital video input port. The device and system which control the projector based on the DMX protocol use standard DMX ports and are compatible with DMX ports of lighting equipment.

Abstract: An optical device is capable of controlling a projector, wherein the projector is capable of wirelessly receiving an image signal from a data source, combining an identification signal into the image signal to generate a projection signal, and projecting a projection image according to the projection signal. The optical device includes an optical sensor. The optical sensor is capable of sensing the identification signal of the projection image, outputting a detection signal corresponding to the identification signal and wirelessly transmitting the detection signal to the projector. A projection system including a projector and an optical sensor is provided as well.

Abstract: An optical device for controlling a projector is provided. The projector projects a projection image. The optical device includes a receiving module, a mode switching module, and a transmission module. The receiving module is capable of sensing a reflected signal of the projection image. The mode switching module is capable of generating a control signal to control the projector to switch from a first mode to a second mode. The transmission module is capable of transmitting the reflected signal and the control signal to the projector. A projection system including the projector and the optical device is also provided.

Abstract: For enabling to prevent ill effects from being generated in the structures of a reflection mirror, even if increasing an output energy from a light source, thereby preventing ill influences from being exerted on the driving condition thereof, a mirror drive controller unit 7 reads out history data of the past, relating to temperature changes on a micro mirror 1, from a first LUT holder unit 19. Upon basis of the read-out history data of the past is presumed the temperature on the micro mirror 1 at the present time. The presumed temperature on the micro mirror 1 is temperature P temp of the micro mirror 1 at the present time, and upon that P temp are changed vibration (or oscillation) condition of the micro mirror 1 in the horizontal (H) direction and vibration (or oscillation) condition thereof in the vertical (V) direction.

Abstract: There are provided a write light valve for generating image-writing light by modulating write light, a driver for writing images into the write light valve based on image data, read light valves for each color for generating respective color image lights by modulating each received color illumination light, an imaging lens group for guiding the image-writing light emitted from the write light valve to the respective read light valves, a dichroic cube for combining together color image lights emitted from the respective read light valves, a projection lens for projecting each color image light combined together. The imaging lens group has a distortion aberration which reduces or cancels out a distortion aberration of the projection lens.

Abstract: A lighting device configured to efficiently combine light beams emitted from a plurality of light sources, and to emit high output light while minimizing light loss, and a projection type display apparatus including the lighting device. The lighting device includes: a first light source and a second light source; two converging lenses for converging light beams emitted from the first and second light sources; two right-angle prisms for bending the light beams emitted from the first and second light sources; and a composite rod integrator for combining the light beams emitted from the first and second light sources. Between an exit surface of each right-angle prism and an incident surface of the composite rod integrator, a predetermined air gap is provided. The focal point of each converging lens is located on an incident surface of each right-angle prism.

Abstract: A notebook computer includes a central processing unit, a video card, a display coupled to the video card, a projecting module, and a projector driving module. The video card is coupled to the central processing unit via a bridge and configured to receive graphical information from the central processing unit. The projecting module is coupled to the video card. The projector driving module is coupled to the projecting module and configured to activate the projecting module. The video card is capable of generating and outputting images to the display or the projecting module according to the graphical information as desired. The projecting module is capable of projecting the images after being activated by the projector driving module.