For Projection Axis Inclined To Screen Patents (Class 353/70)
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Patent number: 9665168Abstract: A user's operability in an image processing apparatus such as a camera scanner is improved. The image processing apparatus has: a pickup image obtaining unit for obtaining a pickup image on a stage through an imaging unit; a distance image obtaining unit for obtaining a distance image on the stage through a solid measuring unit; a solid information obtaining unit for obtaining solid information of a solid object put on the stage based on the obtained pickup image of the solid object and the obtained distance image of the solid object; a projecting unit for projecting a projection image showing a contents area onto the solid object through a projector based on the obtained solid information; and a processing unit for executing the contents in accordance with a user's gesture to the projected projection image.Type: GrantFiled: April 30, 2015Date of Patent: May 30, 2017Assignee: CANON KABUSHIKI KAISHAInventors: Soshi Oshima, Katsuyuki Takahashi, Ryo Kosaka
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Patent number: 9658519Abstract: A projector includes a projection section adapted to project an image on a white board, an imaging section adapted to take an image of the white board, and a control section adapted to set an imaging area representing a range, from which an image of an object attached to the white board is extracted, in accordance with a display state of the white board imaged by the imaging section, and then make an imaging area image indicating the imaging area be projected on the white board.Type: GrantFiled: December 10, 2014Date of Patent: May 23, 2017Assignee: Seiko Epson CorporationInventor: Naoya Nishimura
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Patent number: 9625801Abstract: A projection-type display apparatus includes a light source unit, a first optical system that rays from the light source unit enter, a second optical system that rays from the first optical system enter, an image display device that rays from the second optical system enter, and a projection lens that magnifies and projects an optical image formed by rays that have been optically modulated by the image display device onto a screen. The second optical system is configured to pass again the rays that have been output from the image display device, and to make the rays enter the projection lens. The first optical system includes at least one reflective optical element, and the second optical element consists essentially of two positive lenses.Type: GrantFiled: March 18, 2015Date of Patent: April 18, 2017Assignee: FUJIFILM CorporationInventor: Tomoyuki Baba
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Patent number: 9607363Abstract: A projector includes a projection unit to project an image on a screen; an angle detector to detect shaking of the projection unit; and a trapezoidal distortion correction unit to conduct automatic trapezoidal distortion correction of the image displayed on the screen based on an inclination angle of the projection unit detected by the angle detector, and to enable manual trapezoidal distortion correction of the image displayed on the screen. When the manual trapezoidal distortion correction is conducted after the automatic trapezoidal distortion correction, the trapezoidal distortion correction unit determines whether an angle deviation of the inclination angle exceeds for a given threshold angle for a given time period. When the trapezoidal distortion correction unit determines that the angle deviation exceeds the given threshold angle, the automatic trapezoidal distortion correction is conducted again.Type: GrantFiled: May 20, 2013Date of Patent: March 28, 2017Assignee: Ricoh Company, Ltd.Inventor: Shigekazu Tsuji
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Patent number: 9591226Abstract: There is provided an information processing apparatus including an image acquisition part configured to acquire a captured image including at least a part of a pattern projected by a projector on a projection plane, a projectable area determination part configured to determine a projectable area on the projection plane on the basis of the captured image, and a projector controller configured to control the projector in a manner that an image is projected in the projectable area.Type: GrantFiled: August 27, 2014Date of Patent: March 7, 2017Assignee: SONY CORPORATIONInventors: Atsushi Okamori, Yuuji Takimoto, Hiroshi Yamaguchi
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Patent number: 9588346Abstract: The present disclosure provides a light concentrating film and a display device. The light concentrating film has a planar shape, and includes multiple light concentrating units which are connected to each other so as to concentrate the incident light on a light incoming side of the light concentrating film at the light outgoing side of the light concentrating film. The display device of the present disclosure includes a display panel and the light concentrating film of the present disclosure, and the light outgoing side of the light concentrating film faces a light incoming side of the display panel.Type: GrantFiled: June 25, 2014Date of Patent: March 7, 2017Assignees: BOE TECHNOLOGY GROUP CO., LTD., BEIJING BOE DISPLAY TECHNOLOGY CO., LTD.Inventors: Ling Bai, Hetao Wang, Kun Lu, Kai Yan, Jingshi Li
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Patent number: 9507156Abstract: The present disclosure provides a light concentrating film and a display device. The light concentrating film has a planar shape, and includes multiple light concentrating units which are connected to each other so as to concentrate the incident light on a light incoming side of the light concentrating film at the light outgoing side of the light concentrating film. The display device of the present disclosure includes a display panel and the light concentrating film of the present disclosure, and the light outgoing side of the light concentrating film faces a light incoming side of the display panel.Type: GrantFiled: June 25, 2014Date of Patent: November 29, 2016Assignees: BOE TECHNOLOGY GROUP CO., LTD., BEIJING BOE DISPLAY TECHNOLOGY CO., LTD.Inventors: Ling Bai, Hetao Wang, Kun Lu, Kai Yan, Jingshi Li
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Patent number: 9466267Abstract: A method of outputting a screen image in an electronic device is provided. The method includes outputting a screen image of an electronic device as a projected screen image through a projector when a projector application is executed, measuring a distance between the electronic device and the projected screen image, generating a combined screen image by setting the number of screen images to be displayed according to the measured distance, and then outputting the combined screen image on the projected screen image through the projector.Type: GrantFiled: June 2, 2014Date of Patent: October 11, 2016Assignee: Samsung Electronics Co., Ltd.Inventors: Sangmin Shin, Jin Park
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Patent number: 9429832Abstract: A projection type display apparatus including an oblique projection optical system having a plurality of lenses is disclosed. A lens nearest to a projection screen has a vertical effective image area through which a light flux passes. The lens is arranged at a position not including an optical axis shared by the largest number of lenses among the plurality of lenses. A flat mirror for returning the optical path is arranged between the particular lens and the projection screen at a predetermined angle to the optical axis. An enlarged image obtained by the light flux returned by the flat mirror is formed toward a display screen.Type: GrantFiled: January 30, 2014Date of Patent: August 30, 2016Assignee: HITACHI MAXELL, LTD.Inventors: Koji Hirata, Masahiko Yatsu, Naoyuki Ogura
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Patent number: 9344695Abstract: An automatic projection image correction system (1) includes: a projection image frame detection unit (101) that detects straight lines forming a frame of a screen-projected image which is projected onto a screen by a projector from a captured image obtained by capturing the screen-projected image using a camera; and a projector plane parameter estimation unit (102) that sets coordinate axes to a projector image, which is an original image of the screen-projected image, and the captured image and estimates at least one of a distance between the screen and the projector, an inclination of the screen with reference to an optical axis of the projector, and a zoom ratio of the projector, using an inclination of the optical axes of the projector and the camera, a distance between the optical centers of the projector and the camera, an intrinsic parameter of the camera, coordinate data of the detected straight lines at coordinates of the captured image, and coordinate data of straight lines corresponding to the fraType: GrantFiled: September 11, 2012Date of Patent: May 17, 2016Assignee: NEC CorporationInventors: Takashi Shibata, Akihiko Iketani, Shuji Senda
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Patent number: 9264679Abstract: A mobile device, such as a smart phone, is provided with a camera and a projector. A user may select a still image or a video sequence and project it onto a viewing surface using the mobile device. Once the viewer selects a preferred perspective view frame, the image frame may be pinned to the viewing surface. After that, the viewer may move the projector to different positions while holding the projector, or sit the projector on a table and the viewed image will be maintained in the same perspective view frame as the initial selected view.Type: GrantFiled: December 10, 2013Date of Patent: February 16, 2016Assignee: TEXAS INSTRUMENTS INCORPORATEDInventors: Manasvi Tickoo, Vinay Sharma
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Patent number: 9239233Abstract: A projection control apparatus for controlling a projection apparatus is configured to: receive a video signal including a plurality of color components; extract, as control information, information of a specific color component for each frame of the received video signal; generate, frame by frame, projection control information for controlling operation of the projection apparatus based on the extracted control information; and provide the generated projection control information to the projection apparatus.Type: GrantFiled: August 7, 2012Date of Patent: January 19, 2016Assignee: Canon Kabushiki KaishaInventor: Toshiyuki Nobutani
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Patent number: 9215431Abstract: An image processing apparatus projects and displays an image on a projection surface. The image processing apparatus includes an adjustment image producing section (an adjustment image producing section and an image analysis section) that produces an adjustment image for adjusting a focus of a projected image to be displayed on the projection surface and an imaging section that images the adjustment image projected on the projection surface. The adjustment image producing section changes the adjustment image to be produced, such that a grayscale pattern of a captured adjustment image obtained by imaging is close to a grayscale pattern of the adjustment image.Type: GrantFiled: March 4, 2013Date of Patent: December 15, 2015Assignee: SEIKO EPSON CORPORATIONInventor: Yoshitaka Nakashin
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Patent number: 9207770Abstract: The present invention discloses an information display system automatically adjusting the projection area and a method thereof. The method comprises steps: using a detection module to capture images of a driver and measure a distance between the detection module and the driver; recognize facial features of a driver (including a position of the driver's eye, a rotation angle of the driver's face, and a direction the driver fixates) to estimate a required displacement of the projection area on the windshield (i.e. the region inside the visual field of the driver); moving or rotating the projection device according to the required displacement of the projection area to make the projection device project images of driving information onto a correct region on the windshield.Type: GrantFiled: December 23, 2013Date of Patent: December 8, 2015Assignee: Automotive Research & Test CenterInventors: Yu-Sheng Liao, Yu-Sung Chen, Chih-Bin Chiang
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Patent number: 9116331Abstract: A projection lens system is constructed as a zoom lens system which is for use with a laser light source and performs magnification variation by moving at least a lens group along the optical axis, and the projection lens system fulfills the following conditional formula: (|AC(B2?G)|+|AC(R2?G)|)/(|AC(B1?G)|+|AC(R1?G)|)<0.8, where AC(B2?G) represents longitudinal chromatic aberration between the wavelengths ?B2 and ?G; AC(R2?G) represents longitudinal chromatic aberration between the wavelengths ?R2 and ?G; AC(B1?G) represents longitudinal chromatic aberration between the wavelengths ?B1 and ?G; and AC(R1?G) represents longitudinal chromatic aberration between the wavelengths ?R1 and ?G.Type: GrantFiled: January 23, 2013Date of Patent: August 25, 2015Assignee: KONICA MINOLTA ADVANCED LAYERS, INC.Inventor: Atsuo Masui
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Patent number: 9092840Abstract: An image processing apparatus for generating an image of an arbitrary viewpoint using a plurality of input images obtains image information of a projection position at which a point along a first straight line passing through the arbitrary viewpoint and a pixel position on the image of the arbitrary viewpoint is projected onto each of the plurality of input images, defines parallax information of the plurality of input images at the pixel position, using the image information obtained for the point along the first straight line, and generates the image of the arbitrary viewpoint, by defining the image information of the pixel position from the plurality of input images using the parallax information for the pixel position.Type: GrantFiled: May 24, 2013Date of Patent: July 28, 2015Assignee: Canon Kabushiki KaishaInventors: Yosuke Sato, Yasuhiro Ito
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Patent number: 9091906Abstract: A projector may include an imaging unit, a positional-information generating unit, and a projecting unit. The imaging unit picks up an image of a projection target area with light in a first wavelength band and generates a first pickup image and picks up an image of the projection target area with light in a second wavelength band and generates a second pickup image. The positional-information generating unit generates, on a basis of the first pickup image, adjustment data for performing adjustment of positional information indicating a position of indication light and generates, on a basis of the second pickup image, the positional information. The projecting unit projects an image based on the positional information.Type: GrantFiled: February 25, 2015Date of Patent: July 28, 2015Assignee: Seiko Epson CorporationInventor: Hiroyuki Tanaka
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Patent number: 9082186Abstract: The distance between projection coordinates to which the center of an image are projected and the center coordinates are added to the projection coordinates to obtain projection center coordinates. The distance is added to the coordinates to which the four corners of the image are projected to obtain projection four-corner coordinates. A distance shorter than the minimum of the distances between the projection four-corner coordinates and the projection center coordinates is decided as an output margin distance. Projection source coordinates to be projected to coordinates apart from the projection center coordinates by the output margin distance are obtained. A maximum of the distances between the projection source coordinates and the projection center coordinates is decided as an input margin distance. Divided images decided based on ½ of horizontal size of the image and the input margin distance are deformed and outputted.Type: GrantFiled: April 8, 2013Date of Patent: July 14, 2015Assignee: CANON KABUSHIKI KAISHAInventor: Tetsurou Kitashou
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Publication number: 20150138514Abstract: A projection optical device to project an image on a projection plane, includes a reflection mirror, a plurality of projection lenses, a projection lens supporting member to support the plurality of projection lenses, and a position-arrangement member provided at the projection lens supporting member to arrange the reflection mirror at a predefined position on the projection lens supporting member.Type: ApplicationFiled: November 19, 2014Publication date: May 21, 2015Applicant: RICOH COMPANY, LTD.Inventors: Satoshi TSUCHIYA, Tetsuya FUJIOKA, Hideo KANAI, Masamichi YAMADA, Yasunari MIKUTSU, Naoyuki ISHIKAWA, Akihisa MIKAWA, Yukimi NISHI
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Publication number: 20150138513Abstract: A projector includes a main body including a projection unit which projects an image, a movement detecting unit which detects movement of the main body, and an imaging unit which captures an image of a screen. Furthermore, the projector includes a correction control unit which performs trapezoidal distortion correction on the basis of an image-capturing result, and a second processing unit which performs a second process, which is different from the trapezoidal distortion correction, on the basis of the image-capturing result. In a case where it is determined that the main body is moving on the basis of a detection result, an imaging control unit allows the correction control unit to perform the trapezoidal distortion correction, and in a case where it is determined that the main body is stopped, the imaging control unit allows a manipulation detecting unit to perform a manipulation detecting process.Type: ApplicationFiled: November 10, 2014Publication date: May 21, 2015Inventor: Hiroyuki ICHIEDA
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Publication number: 20150116670Abstract: An axis deviation detecting device includes: a first axis deviation detecting unit which detects a value of a translational deviation along a horizontal axis of a projector device and a value of a rotational deviation about a vertical axis of the projector device, using (i) a horizontal component of a first positional difference between the first target point and the first projection point on a first projection screen and (ii) a horizontal component of a second positional difference between the second target point and the second projection point on a second projection screen; and a second axis deviation detecting unit which detects a value of a translational deviation along the vertical axis and a value of a rotational deviation about the horizontal axis, using (i) a vertical component of the first positional difference and (ii) a vertical component of the second positional difference.Type: ApplicationFiled: October 23, 2014Publication date: April 30, 2015Inventor: Senichi FURUTANI
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Patent number: 9010942Abstract: According to an aspect, a mobile electronic device includes an image projecting unit and a processing unit. The image projecting unit projects an image to a projection area. The processing unit is configured to acquire information for a second image related to a first image placed in the projection area, and cause the image projecting unit to project the second image based on the information acquired.Type: GrantFiled: May 27, 2011Date of Patent: April 21, 2015Assignee: Kyocera CorporationInventors: Yasuhiro Ueno, Shigeki Tanabe
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Publication number: 20150098064Abstract: Methods, systems, and computer-readable media for generating a projected image are provided. Movement measurements are received from an accelerometer within a projection device. A determination is made as to whether the movement measurements indicate movement of the projection device. Upon determining that the movement measurements indicate movement of the projection device, a movement correction factor is determined based on the movement measurements to compensate for the movement of the projection device. The projection device is caused to generate a projected image according to the movement correction factor.Type: ApplicationFiled: December 12, 2014Publication date: April 9, 2015Applicant: AT&T INTELLECTUAL PROPERTY I, L.P.Inventors: Donald Bowen, Robert R. Miller, II
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Patent number: 9001028Abstract: A small 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 is the size of the pen, and converts video instructions using a processing unit and memory into light signals that are projected. In the one embodiment, the device uses pulsed laser light from red, green, and blue lasers that are combined into a single light pulse that is transmitted through a rotating disk containing numerous lenses that transmit each light pulse to a specific location on the screen.Type: GrantFiled: August 19, 2006Date of Patent: April 7, 2015Inventor: David James Baker
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Publication number: 20150092166Abstract: Described is a dynamic correction of keystone distortions of a dynamically panning and tilting luminaire projecting on a flat projection surface. When the luminaire is panned and/or tilted the proper degree of keystone correction is applied. Further the system dynamically corrects for varying of intensity of different parts of the projected image due to the none linear distribution of light on the projection surface as the luminaire is dynamically panned and or tilted relative to the projection surface.Type: ApplicationFiled: October 1, 2013Publication date: April 2, 2015Inventors: Pavel JURIK, Josef Valchar
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Patent number: 8985777Abstract: Wallpaper serving as a screen and display content such as an image to be projected onto the wallpaper are created while maintaining their correlation. The created display content is projected on the wallpaper. The content display system creates a background image, which is a first image serving as a screen, and a second image for a predetermined area on the first image while maintaining their visual relationship, and forms a composite image of the second image on the first image by projecting the second image from a projector onto the predetermined area of the first image.Type: GrantFiled: October 15, 2012Date of Patent: March 24, 2015Inventor: Tetsuya Akiba
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Patent number: 8985781Abstract: A corrector corrects a main image acquired by an image acquirer based on correction setting acquired by a correction setting acquirer, and stores corrected main image in a buffer. An unused area detector detects the area that has not stored the corrected main image in the buffer, and transmits the result to a sub-image selector. The sub-image selector selects, among sub-image candidates registered in a sub-image information memory, a candidate that can be displayed on the unused area and has the highest priority as a sub-image. The sub-image controller executes a program stored in the sub-image displaying program memory, and displays the selected sub-image on the unused area.Type: GrantFiled: September 26, 2012Date of Patent: March 24, 2015Assignee: Casio Computer Co., Ltd.Inventor: Mitsuo Sakai
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Patent number: 8985782Abstract: A projector that projects an image allows selection of one of a plurality of controlled objects located in correspondence with the vertices of the contour of the image and the sides of the contour, moves the selected controlled object within the image based on input operation, and corrects the contour of the image based on the moved controlled object.Type: GrantFiled: September 27, 2012Date of Patent: March 24, 2015Assignee: Seiko Epson CorporationInventors: Jun Yoshimura, Makoto Kobayashi
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Publication number: 20150077720Abstract: A projection device converts input image data into light and includes a correction control unit that calculates a correction amount used for eliminating a geometric distortion occurring in a projection image according to a projection direction based on a projection angle and a view angle and determines a cut out range including also an area other than an area of the image data after the geometric distortion correction estimated according to the correction amount, and a correction unit that generates cut out image data acquired by cutting out an area of the cut out range from the input image data and performs a geometric distortion correction for the cut out image data based on the correction amount.Type: ApplicationFiled: November 20, 2014Publication date: March 19, 2015Inventors: Hironobu FUKUTOMI, Katsumi WATANUKI, Shunichi SHICHIJO
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Patent number: 8979277Abstract: Embodiments of the present invention provide a method, apparatus and system for digital cinema color management. In one embodiment, a digital cinema color management system includes a projection device configured to project image content and a color meter configured to measure color levels of the projected image content. A control device is also provided including a validation module configured for validating the measured color levels of the color meter for preventing the creation of erroneous correction data. A calibration module determines if calibration of the color levels is required and provides real-time corrective color information to a projector.Type: GrantFiled: May 2, 2008Date of Patent: March 17, 2015Assignee: Thomson LicensingInventors: Joshua Pines, Michael Allan Sterling
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Publication number: 20150070662Abstract: An image projection apparatus includes a light modulation device that modulates light according to image data; a projecting unit that projects modulated light; an angle-of-view deriving unit that derives an angle of view at which modulated light is projected; a projection-direction changing unit that changes a projection direction from a first direction to a second direction; a projection-angle deriving unit that derives a projection angle between the first direction and a changed projection direction; a storage unit that stores image data; and an image cutting unit that generates cut-out image data by cutting a part of the image data based on the angle of view and the projection angle as image data projected from the first direction through the second direction, and the minimum variable angle is determined based on the angle of view and a size of an effective region of the modulated light.Type: ApplicationFiled: November 14, 2014Publication date: March 12, 2015Inventors: Ryo Nishima, Katsumi Watanuki, Hisato Seki, Kenji Yasui, Norihisa Yamamoto, Shunichi Shichijo
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Publication number: 20150070663Abstract: A projection device includes a correction unit that corrects a trapezoidal distortion of a projection image projected onto a projection medium in accordance with a projection angle derived by a projection angle deriving unit, and the correction unit sets a correction amount for the trapezoidal distortion of a case where the derived projection angle is changed within a range larger than a first predetermined angle determined based on the projection direction toward a boundary between a first projection face and a second projection face and smaller than a second predetermined angle determined based on the projection direction toward the boundary to be the correction amount for the trapezoidal distortion at one of the first predetermined angle and the second predetermined angle or less.Type: ApplicationFiled: November 18, 2014Publication date: March 12, 2015Inventors: Katsumi Watanuki, Ryo Nishima, Hironobu Fukutomi
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Publication number: 20150062538Abstract: A projector includes a light source device, a diffraction element that converts light from the light source device into 0-th order light and diffracted light, a light modulation device that modulates the diffracted light so as to form image light, and a projection optical system that emits projected light having a chief ray which is tilted with respect to an optical axis of the image light incident from the light modulation device. Defining a reference plane as a plane which is perpendicular to a plane including the optical axis and a chief ray of the projected light and includes the optical axis, a plane including an optical axis of the 0-th order light and a chief ray of the diffracted light intersects the reference plane.Type: ApplicationFiled: August 22, 2014Publication date: March 5, 2015Inventors: Akira EGAWA, Shigeo NOJIMA
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Patent number: 8955988Abstract: An optical assembly includes an imaging element to generate an image and a module configured to adjust a throw ratio of the image which also forms an intermediate real image at an intermediate real image plane. A dynamic optical component positioned relative to the optical path to receive the intermediate real image is configured with one or more optical components which laterally translate a projected image without keystone distortion.Type: GrantFiled: February 18, 2014Date of Patent: February 17, 2015Assignee: Rawles LLCInventors: Christopher David Coley, Eric Gifford Marason
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Patent number: 8950872Abstract: Disclosed is an image projecting device, including a projecting part configured to project an image for calibration onto a projection object, an image capturing part configured to capture an image of an area including the projection object with a projected image for calibration, a binary image producing part configured to calculate plural first thresholds corresponding to plural first divided areas provided by dividing the area, based on a captured image, and to produce a binary image of the captured image, based on the first thresholds, and a corresponding point sampling part configured to sample corresponding points between the image for calibration and the binary image.Type: GrantFiled: August 27, 2012Date of Patent: February 10, 2015Assignee: Ricoh Company, Ltd.Inventors: Fumihiro Hasegawa, Shinichi Sumiyoshi
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Patent number: 8944612Abstract: A method for automatic delivery of consistent imagery in a multi-projector system includes the steps of dividing the projectors into a plurality of sub-groups of projectors, each projector oriented to project a sub-frame to a sub-group display location, and adjusting the output of each projector in each sub-group to provide selected target display characteristics across all sub-groups.Type: GrantFiled: February 11, 2009Date of Patent: February 3, 2015Assignee: Hewlett-Packard Development Company, L.P.Inventors: Nelson Liang An Chang, Niranjan Damera-Venkata, Arun Kumar Paruchuri
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Patent number: 8941785Abstract: A projector includes a moving unit adapted to move positions of at least six correction points, which are included in a correcting image, a reception unit adapted to receive a designation on a value of a parameter representing linearity, a derivation unit adapted to derive a correspondence relationship of the coordinates between and input image and the correcting image using coordinates of the at least six correction points moved by the moving unit, and the parameter having the value designation of which is received by the reception unit, and a processing unit adapted to perform a correction process on the input image based on the correspondence relationship derived by the derivation unit.Type: GrantFiled: March 25, 2014Date of Patent: January 27, 2015Assignee: Seiko Epson CorporationInventor: Manabu Saigo
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Patent number: 8919965Abstract: Methods, systems, and computer-readable media for generating a projected image are provided. Movement measurements are received from an accelerometer within a projection device. A determination is made as to whether the movement measurements indicate movement of the projection device. Upon determining that the movement measurements indicate movement of the projection device, a movement correction factor is determined based on the movement measurements to compensate for the movement of the projection device. The projection device is caused to generate a projected image according to the movement correction factor.Type: GrantFiled: July 2, 2010Date of Patent: December 30, 2014Assignee: AT&T Intellectual Property I, L.P.Inventors: Donald Bowen, Robert R. Miller, II
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Patent number: 8912977Abstract: A projector that can solve a problem in which a projection image is disturbed due to deviation of incident positions of projection light to a screen is provided. Projection section 11 includes LD light emission section 111 and scanning section 112 that scans light emitted by LD light emission section 111 and projects the scanned light to the rear plane side of the screen. Control section 12 controls an amount of light emission of the light and a scanning angle of scanning section 112 based on an image signal so as to cause projection section 11 to project an image corresponding to the image signal to the screen. Control section 12 corrects an orientation of projection light corresponding to each pixel of the image projected from projection section 11 based on a refractive index of the light transmission member and a scanning angle of scanning section 112 so as to correct an incident position of the projection light on the screen.Type: GrantFiled: March 29, 2011Date of Patent: December 16, 2014Assignee: NEC CorporationInventors: Yoshiho Yanagita, Fujio Okumura
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Patent number: 8911094Abstract: An image processing device for a projector including an image formation section that emits light of an image, and a projection system that projects the emitted light onto a projection surface. The image processing device has a distortion correction technique for images displayed on the projection surface. The image processing device has a target display area determination section that determines, in a display area serving as a reference on the projection surface, based on a current value of a parameter, any of target display areas set for values possibly taken by the parameter within an allowable range to be targeted on a distortion-free image for display on the projection surface; a reference formation area determination section that determines a reference formation area to be formed with a virtual distorted image and a correction application section that generates corrected image data for supply to the image formation section.Type: GrantFiled: May 30, 2014Date of Patent: December 16, 2014Assignee: Seiko Epson CorporationInventor: Shiki Furui
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Patent number: 8905556Abstract: A projector includes a lens driving unit that drives a lens unit including a projection lens; a reception unit that receives instruction information that is input; and a control unit that controls a lens shift by the lens driving unit based on lens shift instruction information with respect to the projection lens, which is received by the reception unit, in such a manner that zoom, which is performed by the lens driving unit based on zoom instruction information adjusting angle of view with respect to the projection lens, is performed in a predetermined state for a first image which is projecting in a state that a central position of the first image is different from a basis position of the zoom.Type: GrantFiled: December 12, 2011Date of Patent: December 9, 2014Assignee: Seiko Epson CorporationInventor: Shinichi Tsukagoshi
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Patent number: 8905551Abstract: An augmented reality system may generate an augmented reality environment by projecting images onto various surfaces within a scene. A projection accessory display device (PADD) provides known characteristics for projection, and may be configured to simplify generation and maintenance of the projected image upon the PADD. The PADD may also provide one or more input devices which accept input from a user within the augmented reality environment. The PADD may comprise non-electronic passive components, electronic active components, or a combination thereof.Type: GrantFiled: December 23, 2010Date of Patent: December 9, 2014Assignee: Rawles LLCInventor: William Spencer Worley, III
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Patent number: 8891026Abstract: Provided is a projection video display device with which a sliding load is minimized while maintaining an adjustment precision in a lens shift mechanism. A lens shift mechanism (32) which moves a projection lens in a direction which is orthogonal to the optical axis of projected light has a configuration in which mobile bases (50, 60), which retain the projection lens, slide using a shaft (52), which is attached on a fixed member (4) side, as a guide member. A further aspect of the configuration is that a correction screw is inserted from the rear face side of the fixed member (4) to make contact with the shaft (52), and optical axis tilt and misalignment of the projection lens are corrected by adjusting the degree of insertion of the correction screw.Type: GrantFiled: October 13, 2011Date of Patent: November 18, 2014Assignee: Hitachi Maxell, Ltd.Inventors: Chohei Ono, Shinro Inui, Masayuki Fukui, Kazuomi Kaneko, Nobuki Matsui
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Patent number: 8884937Abstract: A projection apparatus including an image panel, a projection lens, and a control unit is provided. The image panel is configured to provide an image beam and has a displaying area. The projection lens is configured to project the image beam to form an image. When the optical axis of the projection lens is tilted with respect to a normal of the image, the control unit commands a first portion of the displaying area to show a compressed frame corresponding to the image and commands a second portion of the displaying area to show a black border. A projection method is also provided.Type: GrantFiled: January 9, 2012Date of Patent: November 11, 2014Assignee: Himax Display, Inc.Inventors: Chia-Lin Wu, Sheng-Jen Hsiao
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Patent number: 8882278Abstract: A reprojection system which allows a projection to be displayed onto a display screen, and reprojected by that display screen. The display is received on the surface that itself displays, and it is then redisplayed on the surface. The redisplay can be at the same size or at a different size as the original projection. Preferably the redisplay is at the same relative intensity but a brighter actual intensity than the original display. The information is can be received and redisplayed in a number of different ways.Type: GrantFiled: December 10, 2013Date of Patent: November 11, 2014Assignee: Harris Technology, LLCInventor: Scott C. Harris
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Patent number: 8876299Abstract: An electronic device of the present application includes a case (1), a stem-shaped leg (3), and a leg fixing part (4). The leg fixing part (4) is provided on one face of the case (1) and includes a case thread ridge portion (4a) that is formed on an inside face of a hole, into which the leg (3) is inserted, and that is divided into isolated thread ridge portions. A peripheral face of a stem portion of the leg (3) has a first screw structure portion (3a), which is engaged with the case thread ridge portion (4a), and a second screw structure portion (3b) which is engaged with the case thread ridge portion (4a) before being engaged with the first screw structure portion (3a). The second screw structure portion (3b) has a guide portion (5a) and an idle turn inducing portion (5b). The guide portion (5a) guides the case thread ridge portion (4a) to the second screw structure portion (3b) when the leg (3) is inserted into the hole while being turned in a direction in which the leg (3) enters the case (1).Type: GrantFiled: July 21, 2009Date of Patent: November 4, 2014Assignee: NEC Display Solutions, Ltd.Inventor: Qing Song
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Patent number: 8876298Abstract: This projector includes a laser beam generation portion outputting a laser beam, an image projection portion, including a scanning portion scanning the laser beam, projecting an image on a projection area, an image correction portion correcting distortion of the projected image on the basis of projection condition information, a photoreceiving portion receiving the laser beam reflected by a detection object, and a position acquisition portion acquiring the position of the detection object on the basis of photoreceiving information of the laser beam received by the photoreceiving portion and the projection condition information employed by the image correction portion for correcting the image.Type: GrantFiled: September 10, 2012Date of Patent: November 4, 2014Assignee: Funai Electric Co., Ltd.Inventor: Atsuhiko Chikaoka
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Patent number: 8876300Abstract: An image projecting apparatus for projecting an image includes a light source, a light emitting port, an emitting unit, and a control unit. The emitting unit causes the light emitted from the light source to be emitted from the light emitting port in such a manner that an emission direction of the light emitted from the light emitting port is variable. The control unit controls the light source and the emitting unit to switch between a first projection mode and a second projection mode. When the image projecting apparatus is placed on a horizontal plane, the emission direction is a front direction of the light emitting port or obliquely upward with respect to the horizontal plane in the first projection mode, and the emission direction is obliquely downward with respect to the horizontal plane in the second projection mode.Type: GrantFiled: September 28, 2010Date of Patent: November 4, 2014Assignee: Kyocera CorporationInventors: Yasuhiro Ueno, Yasushi Kitamura, Jouji Yoshikawa
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Patent number: 8870392Abstract: Projector (1) adapted to be installed on a household appliance (26), for projecting visible information onto a projection surface (17) lying outside of said household appliance, the projector comprising a focusing unit (4) that is adapted for focusing a light beam that emanates from a light source (5) onto said projection surface, wherein the focusing unit further comprises at least one fixation element (12) that is adapted to arrange the focusing unit in at least two different focusing positions (13, 13?) within said projector (1).Type: GrantFiled: February 28, 2011Date of Patent: October 28, 2014Assignee: Electrolux Home Products Corporation N.V.Inventors: Oliver Kleinert, Honghua (Terry) Hu, Franz-Josef Wipperfurth, Werner Braun
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Patent number: RE45258Abstract: In a projection optical system for use in an image projection apparatus illuminating an image display panel forming an image in accordance with a modulating signal with illumination light from a light source, the projection optical system includes first and second optical systems arranged along an optical path defining an upstream-downstream direction in the order described from upstream to downstream on the downstream side of the image display panel. The first optical system includes at least one dioptric system and has positive power. The second optical system includes at least one reflecting surface having power and has positive power. The image formed by the image display panel is formed as an intermediate image in the optical path, and the intermediate image is magnified and projected.Type: GrantFiled: April 11, 2013Date of Patent: November 25, 2014Assignee: Ricoh Company, Ltd.Inventors: Atsushi Takaura, Kazuhiro Fujita, Nobuo Sakuma