Abstract: A projector includes: a main body section including a light source, a display surface illuminated by light from the light source, and an emission optical system adapted to emit light from the display surface; and a projection unit adapted to project light from the display surface toward an irradiated surface, the light being emitted from the emission optical system, wherein the projection unit includes an image plane control optical system adapted to change the light emitted from the emission optical system to light forming an image plane of the display surface tilted with respect to the display surface, and an angle-widening mirror with a concave surface having positive power and adapted to reflect light forming an image plane of the display surface tilted with respect to the display surface and widen an angle of the light.

Abstract: A projector includes: a main body section including a light source, a display surface irradiated with light from the light source, and an emission optical system capable of emitting the light from the display surface, and once converting the light from the display surface into light forming an image plane of the display surface tilted with respect to the display surface; and a projection unit projecting the light from the display surface, emitted from the emission optical system, toward an irradiated surface, and having an angle-widening mirror with a concave surface having positive power and reflecting and widening light forming an image plane of the display surface tilted with respect to the display surface. The main body section or the projection unit includes a variable power optical system varying magnification of the image forming the image plane of the display surface tilted with respect to the display surface.

Abstract: A first detection unit and a second detection unit detect the light that is incident from the direction where a screen is to be located. A controller determines whether the screen is located at a recommended position based on output signals from the first detection unit and the second detection unit. When the screen is located at the recommended position, the controller controls the projection display apparatus so as to be in the state where a significant image can be projected. The controller may determine whether the screen is located at the recommended position and in a normal state based on the output signals. When the screen is located at the recommended position and in a normal state, the controller may control the projection display apparatus so as to be in the state where a significant image can be projected.

Abstract: A multimedia presentation system includes a plurality of display systems and at least one control system. The plurality of display systems output image areas of a multimedia presentation to at least partially different locations of a display environment. The control system adjusts the output of the image areas from the plurality of display systems to conform to the display environment. The display and capture systems may be wearable, mobile or adjustable and can react to any environment. Editing environments allow the same show to be easily relinked to a new display configuration without any need for extensive user-driven layout revision. Virtual display configurations are simulated and presented on other displays.

Abstract: A projection-type display apparatus that projects an image toward a projection surface and displays the image thereon, the apparatus includes: a projecting section that includes a focal length adjusting mechanism and projects an image; an adjustment image controlling section that uses the projecting section to project a guide display image suggesting how to adjust the position where the projection-type display apparatus is installed and uses the projecting section to project a calibration image having a predetermined shape when the guide display image is projected; a projection distance measuring section that measures a projection distance that is the distance to the projection surface based on a captured image obtained by capturing the calibration image; and a focus adjusting section that operates the focal length adjusting mechanism based on the projection distance to perform focus adjustment so that the displayed guide display image is brought into focus.

Abstract: A projection display apparatus for displaying an image on a projection plane by projection, includes: an image capturing unit capturing an image; an angle calculator calculating an angle of the projection plane relative to the projection display apparatus; a straight line detector detecting a straight line in the captured image corresponding to a line perpendicular to a predetermined reference plane and a straight line in the captured image corresponding to a line parallel to the predetermined reference plane on the basis of the calculated angle; and a keystone corrector correcting a keystone distortion of an image to be displayed on the projection plane on the basis of the detection result in the straight line detector.

Abstract: The present invention relates to a distortion detecting system and a distortion detecting method having a structure for efficiently detecting distortion of a projected image that is projected onto a projected surface by a projector. The distortion detecting system includes a photodetecting apparatus, and an analyzing apparatus. When a reference brightness image is projected onto the projected surface by the projector, the photodetecting apparatus forms the projected image on the projected surface onto the photosensitive surface of the photodetector, and outputs light intensity profile data that indicates a one-dimensional distribution of incident light intensity in each of a first direction and a second direction on an image for inspection formed on the photosensitive surface.

Abstract: An adjusting system for a projector includes a reference point projection unit, an infrared apparatus, a micro controller unit (MCU), and a graphic processing unit (GPU). The reference point projection unit stores reference points. The reference points are projected on a screen to form projection points. The infrared apparatus includes infrared devices mounted on a front surface of a body of the projector. The infrared devices emit infrared signals to the screen and form light points on the screen. When a projection angle of the projector is 0 degrees, the light points overlap the projection points respectively. When the projection angle of the projector is a certain angle, the MCU controls the GPU to make adjustment corresponding to the infrared devices which receive the reflected infrared signals, until the projection points overlap the light points respectively.

Abstract: An image display apparatus improves usability for a user in the case where a screen image is projected on a ceiling as a screen. The image display apparatus includes: a projection unit capable of vertically changing a projection angle; a projection angle detector detecting the projection angle of the projection unit; and a screen image corrector reversing a projected screen image. The screen image corrector switches the projected screen image from a reversed display to a standard display when the projection angle detected by the projection angle detector is less than or equal to a predetermined value.

Abstract: A method for correcting keystone distortion is provided. The method is applied on a projector capable of correcting keystone distortion. The apparatus includes an angle detecting unit and a storage unit. The angle detecting unit detects an inclined angle and outputs a voltage value corresponding to the detected inclined angle. The storage unit stores a relationship between the inclined angles and the voltage values. The method includes determining the inclining angle according to the voltage value and the stored relationship; calculating the ratio of the length of the upper side of the projection area of a source image projected onto a projection surface to the length of the lower side of the projection area of a source image projected onto the projection surface, and inversing the ratio to determine a correction coefficient; and modifying the source image to display the source image onto the projection surface.

Abstract: A projector includes: a first image projection section adapted to project a first image based on a first image signal, a second image projection section adapted to project a second image based on a second image signal such that pixels of the second image are shifted from pixels of the first image, a correction section adapted to correct the image signal input to the image projection section using a correction filter adapted to correct a difference in optical transfer function between the plurality of image projection sections; and a sharpening section adapted to execute a sharpening process of sharpening an edge portion of the image to be displayed, on the image signal having been corrected by the correction section and to be input to the plurality of image projection sections.

Abstract: A projection display apparatus for displaying an image on a projection plane by projection, includes: an image capturing unit capturing an image; an angle calculator calculating an angle of the projection plane relative to the projection display apparatus; a straight line detector detecting at least one reference line segment in the captured image; a line segment complementing section setting at least one complementary line segment in the captured image on the basis of the calculated angle so that an area on the projection plane corresponding to an area defined by the reference line segment and the complementary line segment is rectangular; and a keystone corrector correcting a keystone distortion of an image displayed on the projection plane on the basis of the reference line segment and the complementary line segment.

Abstract: The lighting unit includes the DMDs (80R), (80G), and (80B). The lighting unit also includes: the prisms (50) and (60) combining the light emitted from the DMDs (80R), (80G), and (80B); and the light modulating optical device (90G). The incident light including the green component light and the yellow component light enters the light modulating optical device (90G). The light modulating optical device (90G) transmits the green component light and changes a transmittance of the yellow component light depending on a change of a molecular state. Light having emitted from the light modulating optical device (90G) enters the DMD (80G), which corresponds to the incident light.

Abstract: An image adjusting device and method for image projection in an aircraft, in which vibration-induced excursions between a projection device and an associated projection surface are offset via the corresponding acquisition of position-time states in such a way that an image displayed on a display surface remains essentially unchanged.

Abstract: A projector includes a projector body, a lens module with a lens, and a gear module. The lens module and the gear module are arranged in the projector body. The gear module is operable to adjust a height of the lens and keep an angle of the lens, in response to the gear module being rotated.

Abstract: A projector includes a projector body, a lens module, and a base rack. The front panel of the projector body defines a though hole. The lens module includes a lens body rotatably mounted to the projector body, a sliding bracket, and a lens extending from the lens body to extend through the through hole of the projector body, and a sliding bracket connected to the lens body via parallel connecting poles. The sliding bracket is slidably mounted to the base rack. The base rack is rotatably mounted to the projector body. A height of the lens is operable to be adjusted by changing the positions of the sliding bracket on the base rack.

Abstract: An optical position of a display device with respect to an optical axis of a projection optical system is displaced in a direction perpendicular to the optical axis in accordance with a change in the size of a projected image. For instance, a transparent flat plate is disposed in front of a projection lens, and the transparent flat plate is tilted in association with a rotation of a zoom adjustment ring. As the transparent flat plate is tilted, the apparent position of the display device relative to the projection lens is displaced in the direction perpendicular to the optical axis of the projection optical system. Thereby, the projected image on a screen is located at a proper position corresponding to a zoom state. Tilt control of the transparent flat plate is realized by a cam mechanism, for instance.

Abstract: An apparatus and method are disclosed for dynamic keystone correction. A measurement module measures distances from a projector to each of at least three projected points of a first projected image projected on a first surface with projection angles between each projected point. The at least three projected points are endpoints for at least two vectors with a target ratio of vector lengths. An adjustment module calculates an actual ratio of actual vector lengths of the at least two vectors. The adjustment module further adjusts a first aspect ratio of first projected image until the actual ratio is equivalent to the target ratio.

Abstract: A projector comprises a projection unit, an image pickup unit, a control unit, and a correction unit. The projection unit is configured to project a video based on a video signal. The image pickup unit is configured to pick up an image of a projection video projected by the projection unit and output the picked-up image. The control unit is configured to determine a projection video projected by the other projector based on the picked-up image received from the image pickup unit. The correction unit is configured to carry out correction of the video signal so that the projection video projected by the projection unit is aligned with the projection video projected by the other projector.

Abstract: A projection type image display apparatus includes: a light source; an illumination optical system that uniformly illuminates beams, which are emitted from the light source, on a surface of an image modulation element as a primary image plane; and a projection optical system that projects image information of the primary image plane modulated by the image modulation element on a screen as a secondary image plane in an enlarged manner. The projection optical system includes a first optical system having a positive refractive power and including a plurality of transmissive surfaces, and a second optical system having a positive refractive power and including a concave reflective surface. The first optical system has a first reflective surface disposed between any surfaces of the plurality of transmissive surfaces, and a second reflective surface disposed between the first optical system and second optical system.

Abstract: A projector displays an image on a projection surface. The projector has a zoom adjusting module and a keystone correcting module. The zoom adjusting module adjusts zoom level of a zoom lens for enlarged projection of image light. The keystone correcting module corrects trapezoidal distortion of the image displayed on the projection surface by means of forming the effective panel image in a revised image formation area, the revised image formation area being part of the image formation area of the panel surface.

Abstract: The invention relates to an image viewing system for aircraft passengers, characterized in that it is embodied in the form of a module (10) which comprises a unit (20) for displaying images originating from at least one image source (12, 14, 16), the display unit being tied to an internal wall of the aircraft, in a position parallel to a floor of the aircraft.

Abstract: A mobile projector apparatus includes a light source, a modulation unit modulating light of the light source using a picture signal, a projection lens magnifying and projecting the modulated light of the light source, a battery supplying electric power to the light source, an acceleration measuring unit measuring an acceleration applied to the mobile projector apparatus, a usage state detecting unit detecting whether or not the mobile projector apparatus is in an unused state, and an extinguishing unit extinguishing the light source based on outputs of the acceleration measuring unit and the usage state detecting unit.

Abstract: A method of measuring a zoom ratio of a projection optical system adapted to project image light representing an original image on a projection screen, the method includes: (a) projecting and displaying a measuring image including a measurement point on the projection screen so that the measurement point is displayed at a position with an offset from an optical axis of the projection optical system; (b) detecting a projected measurement point, which is the measurement point projected and displayed on the projection screen, from a measurement point detection position having a fixed position relative to the projection optical system; and (c) determining the zoom ratio using position information of the detected projected measurement point and correspondence between the position information and the zoom ratio, the correspondence being prepared previously.

Abstract: An image projection apparatus according to the present invention includes a light source for outputting laser light and a mirror section for reflecting and projecting the laser light having been output from the light source, and displays an image with at least a portion of the projected laser light. The image projection apparatus includes a detection section for detecting at least a portion of the laser light returning from a projection direction of the laser light, and a calculation section for determining an image displayable region based on the detected light. The mirror section reflects at least a portion of the laser light returning from the projection direction of the laser light so as to be led into the detection section.

Abstract: A projection type image display apparatus includes an image display element, a projection unit including a first lens group and a second lens group formed with a plural number of lenses, a reflection mirror configured to reflect light emitted from the second lens group thereon after the light passes through the first lens group so as to project the light on a screen obliquely, and a mechanism configured to enable movement of at least one lens of the second lens group in a direction of an optical axis. The first lens group is fixed with respect to a bottom portion of the mechanism and is configured to compensate for an aberration of an optical system thereof. The second lens group is configured to enable movement of at least one lens of the second lens group with respect to the first lens group and the bottom portion of the mechanism.

Abstract: A projector includes a projection section which projects a calibration image onto a projection target through a projection panel, a shape determination section which determines a shape of the projection target, a correction target area setting section which sets a correction target area, an aspect ratio calculation section which calculates an aspect ratio of the correction target area, a determination section which determines whether or not a value which indicates a difference between the aspect ratio of the correction target area and a reference aspect ratio satisfies a set condition, and an image generation section which generates an image having the shape of the correction target area on the projection panel when the set condition is satisfied, and generates an image having the reference aspect ratio on the projection panel when the set condition is not satisfied.

Abstract: A video projector includes a display device which receives an image signal and generates image light projected onto a projection surface. A scaling processor scales the input image signal. An OSD processor generates and corrects an adjustment pattern image in accordance with a correction instruction on the projection surface. An image signal synthesizer combines the image signal processed by the scaling processor with an OSD image signal generated and corrected by the OSD processor to generate a combined image signal. A trapezoidal distortion corrector performs trapezoidal distortion correction on the combined image signal from the image signal synthesizer based on the correction of the adjustment pattern image on the projection surface. The adjustment pattern image generated by the OSD processor includes a reference quadrangle pattern and downsized quadrangle patterns, which are reduced in size from the reference quadrangle pattern.

Abstract: The object of the invention is to resolve the above problems in the conventional technique. A main object of the invention is to provide an image display device and a information processing apparatus which can prevent the problem such as slanting or missing of images displayed on a screen. In order to achieve the object, the invention provides a image display device built into electronic apparatuses, the device including a laser beam source unit emitting laser beams of various colors; a light modulation element modulating the laser beams emitted from the laser beam source unit, based on video signals; a projecting optical system projecting the modulated laser beams formed by the light modulation element on a screen; a control portion controlling the laser beam source unit and the light modulation element; and a movable body provided to be drawn out of and inserted into the case of electronic apparatuses.

Abstract: A two-dimensional image is displayed on a screen (SC) by scanning the screen (SC) two-dimensionally with light beams from a laser light source (1) that are deflected to orthogonally-intersecting first and second scanning directions by means of a mirror (10) in a deflection apparatus (3). The deflection apparatus (3) is arranged to incline obliquely in the second scanning direction (e.g. vertical direction) lower in a scanning speed than the first scanning direction (e.g. horizontal direction), and performs an oblique projection onto the screen (SC).

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 system and method of geometrical predistortion of a graphical source signal is provided in which the graphical source signal is merged with an input video signal for display on a display device. The input video signal is received at a hardware scaler device and a predistorted video signal is generated there from. A warping map is calculated using a programmed processor and a graphics source signal is then predistorted, in software, using the warping map to generate a warped graphical overlay signal. The predistorted video signal from the hardware scaler is then merged with the warped graphical overlay signal from the programmed processor.

Abstract: An apparatus that presents a projection image has a screen and plural projectors, each of which projects a section of the projection image onto the screen. The apparatus has a projected-section-determining unit that determines as a projected section the section of the projection image, based on an input image signal, corresponding to a part of the screen onto which each of the projectors projects the section of the projection image. The apparatus has an image-signal-generating unit that generates an image signal corresponding to the section of the projection image which each of the projector projects onto the part of the screen, based on the input image signal and the projected section determined by the projected-section-determining unit, and a projectors-controlling unit that controls the projectors to adjust centers and/or ranges of the projections by the projectors based on the projected section determined by the projected-section-determining unit.

Abstract: Disclosed are a display apparatus and a light control method thereof, in which the display apparatus including a display panel, a light source unit, an illumination unit to illuminate the display panel with light emitted from the light source unit, and a projection unit to project the light from the display panel in a predetermined direction includes: a light sensor which is provided between the light source unit and the illumination unit; and a light controller which corrects brightness of light sensed by the light sensor on the basis of reflective characteristics of the display panel. With this configuration, the quantity of light is prevented from decreasing so as to prevent the brightness of an image from decreasing.

Abstract: A display device (100) of the present invention has a first switch (3) and a second switch (4) on an upper surface of its casing, and includes a control circuit (18) for controlling the first switch (3) and the second switch (4) and a light source (19) inside the casing. The control circuit (18) performs control so that the light source (19) is turned on when the second switch (4) is pressed after a predetermined period of time has passed from when the first switch (3) was pressed. Thereby, the display device (100) of the present invention prevents entering of a person into a projection area before projection of video, and controls inadvertent start-up.

Abstract: A projection type display device including: a plurality of light sources; a display device; a light-combining unit for combining output light beams from the plurality of light sources; a condensing unit for propagating an output light beam from the light-combining unit to the display device; a projecting unit for projecting an image with the use of an output light beam from the display device; and a cooling unit having a ventilating fan and disposed on each of the plurality of light sources. The projection type display device further includes a flow direction adjusting unit for switching blow-off positions where air from the fan is discharged and a control unit for controlling switching of the blow-off positions operated by the flow direction adjusting unit.

Abstract: A method corrects trapezoid distortion of projected images using a projector. The projector includes a projection lens, a driver device, an image capturing device, and a storage system. A rectangular picture is read from the storage system and projected on a projection area by the projection lens. The method controls the image capturing device to capture an image from the projection area when the projection lens increases one trapezoid row correction grade, and corrects each trapezoid row of the captured image if the captured image has trapezoid rows. The method further controls the image capturing device to capture an image from the projection area when the projection lens increases one trapezoid column correction grade, and corrects each trapezoid column of the captured image if the captured image has trapezoid columns.

Abstract: A projector device that generates a projection image, photographs this projection image and performs various adjustments to the projection image.

Abstract: Methods and apparatus for projecting a tangible image of data characterizing an object onto a surface of the object itself. Three-dimensional measurements of the object are obtained, the measurements are processed for projection, and a tangible image is projected onto the object, the image conveying information based on the three-dimensional measurements. The image may be projected concurrently with performance of measurements. In an exemplary dental context, information derived in part from three-dimensional measurements of a tooth or replica may be projected onto the actual tooth or replica. In interactive application, a work piece is be measured during the course of fabrication, and three-dimensional information, derived from contemporaneous non-contact measurement, is projected onto the work piece in order to direct the user with the formation of the work piece.

Abstract: In a projection type image display apparatus, for enlarging an image on a image display apparatus 1 by means of a projection lens 2, thereby projecting the enlarged image onto a screen 6, obliquely, being inclined thereto, between the projection lens 2 and a rear-surface mirror 5, there are disposed free shaped surface mirrors 3 and 4, each having a free shaped surface for compensating a trapezoidal distortion due to oblique projection of the enlarged image. The surface configuration of the free shaped surface mirror is so shaped as to satisfy a following equation: |L1?L2|>1.4·Dv if assuming that a distance for a light beam of an upper end of the enlarged image to reach the screen after being reflected upon a free shaped surface is “L1”, a distance for a light beam of a lower end of the enlarged image to reach the screen after being reflected upon the free shaped surface is “L2”, and a distance from an upper end of an image on the screen to a lower end thereof is “Dv”.

Abstract: A projector includes a light source, a light modulator that modulates the light flux emitted from the light source in accordance with an image signal to form image light, a projection optical apparatus that enlarges and projects the image light, a reflection section having a reflection surface disposed along the direction in which the projection optical apparatus outputs the image light, the reflection surface reflecting the image light, and an adjustment section that adjusts the inclination angle of the reflection section with respect to the direction in which the image light travels.

Abstract: An image processing device adapted to correct distortion of an image projected on a projection screen with projection light emitted from a projector includes a detection section adapted to detect at least one of display positions of a plurality of predetermined figures displayed in a correction image projected by the projector on the projection screen, the plurality of figures arranged at densities varying in accordance with an incident condition of projection light to the projection screen, a distortion correction information generation section adapted to generate distortion correction information based on the display position detected and correction image data representing the correction image, an acquisition section adapted to acquire image data representing the image to be projected on the projection screen, and a distortion correction section adapted to execute a distortion correction process using the distortion correction information on the image data acquired.

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: An electronic device includes: a moving part; a projector device provided to the moving part; and a projection control unit that starts projection of an image by the projector device according to the state of the moving part, and the projection control unit starts projection of an image when a first time period has elapsed with the moving part in a predetermined state.

Abstract: An electronic device includes: a housing which accommodates a device main body; and a leg which contacts an installation surface on which the housing is installed and changes the projection length projecting from the outside surface of the housing. The leg has a leg main body contacting the installation surface, and a support member which projects from the outside surface of the housing and supports the leg main body. The support member has a base provided on the outside surface of the housing and a projecting portion projecting from the base and having a screw groove on the outer circumferential surface of the base. The leg main body has an insertion hole into which the projecting portion is inserted at one end of the leg main body, and a screw thread engaging with the screw groove on the inner circumferential surface of the insertion hole.

Abstract: A portable electronic device with micro-projecting module includes a shell body, a micro-projecting module, a heat-conducting plate and a supporting stand. The shell body has a front lateral plate and a bottom lateral plate adjoining the front lateral plate. The front lateral plate has a front through hole, while the bottom lateral plate has a bottom through hole. The micro-projecting module is arranged in the shell body and has a lens exposing to an outside of the shell body from the front through hole. The heat-conducting plate is arranged in the shell body and is positioned between the micro-projecting module and the bottom through hole. In the meantime, the heat-conducting plate has a heat-absorbing face contacting the micro-projecting module and a heat-dissipating face abutted against the bottom through hole.

Abstract: An adjusting system for a projector includes a reference point projection unit, an infrared apparatus, a micro controller unit (MCU), and a graphic processing unit (GPU). The reference point projection unit stores reference points. The reference points are projected on a screen to form projection points. The infrared apparatus includes infrared devices mounted on a front surface of a body of the projector. The infrared devices emit infrared signals to the screen and form light points on the screen. When a projection angle of the projector is 0 degrees, the light points overlap the projection points respectively. When the projection angle of the projector is a certain angle, the MCU controls the GPU to make adjustment corresponding to the infrared devices which receive the reflected infrared signals, until the projection points overlap the light points respectively.

Abstract: Provided is image display apparatus, in which a surface to be scanned is two-dimensionally scanned with a light beam which is modulated based on image information and emitted from a light source means and an image formed on the surface to be scanned is observed through an optical system, wherein a synchronization light detection device to obtain synchronization signal related to a scanning start position on the surface to be scanned is disposed on the surface to be scanned, on the vicinity thereof, or on a surface optically conjugate therewith, so that a synchronization signal can be detected with high precision and a preferable quality image can be displayed for observation, and image taking apparatus including the image display apparatus.

Abstract: A projector includes a body, a support shaft, an input unit, a distance detection unit mounted on a front surface of the body, an angle detection unit mounted in the support shaft, a micro controller unit, a graphics processing unit (GPU), and an optical unit. The distance detection unit detects a distance between the distance detection unit and a light point on a screen by the distance detection unit. The angle detection unit detects a projection angle of the body. The MCU obtains a correction value according to the distance between the distance detection unit and the light point on the screen, and the projection angle of the body. The GPU corrects the images from the input unit according to the correction value. The optical unit projects the corrected images on the screen.

Abstract: A projector for acquiring a coordinate of a bright spot includes a half transparent and half reflecting mirror (22), an imaging device (24), and a processing system (25). The half transparent and half reflecting mirror (22) is provided on a light path between the light source (21) and the zooming system (23). The imaging device (24) captures an external light ray reflected by the half transparent and half reflecting mirror (22). The processing system (25) acquires the coordinate of the bright spot according to the image of the image of the bright spot captured by the imaging device.