Lens Position Adjustable Patents (Class 353/101)
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Patent number: 8529074Abstract: A projection optical system for projecting an image of an image display element, includes a lens, a stop, and a holder configured to hold the lens and the stop and disposed at an image-display-element side of the stop. In addition, a light blocking member is disposed at the image-display-element side of the stop and fixed within the holder. At least a part of the light blocking member extends to a position nearer to an optical axis of the lens than the holder, and a face of the light-blocking member nearer to the image-display-element side is inclined in a section including an optical axis of the lens so that a point nearer to the optical axis comes closer to the image display element.Type: GrantFiled: October 2, 2008Date of Patent: September 10, 2013Assignee: Canon Kabushiki KaishaInventor: Akino Moriyoshi
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Publication number: 20130208250Abstract: A central position detection section has a detection width in which the central position has a median value along one axial direction. When the direction from a position, which is located at the time at which returning is started toward the central position is defined as a go direction, the control section commands that a drive mechanism should sequentially perform following operations: a first operation of driving a the projection lens assembly in the go direction; a second operation of allowing the projection lens assembly to travel in a return direction at least by the detection width; and a third operation of allowing the projection lens assembly to travel in the detection width in the go direction by ½ of the detection width traveled in the go direction.Type: ApplicationFiled: September 22, 2010Publication date: August 15, 2013Applicant: SANYO ELECTRIC CO., LTD.Inventors: Takeshi Fujisaki, Taichi Yoshimura
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Patent number: 8506093Abstract: A projector that projects an image to a projection object using light emitted from a light source lamp, including a light adjustment sensor that measures the projection distance to the projection object and the intensity of reflected light from the projection object; a zoom position sensor that detects a zoom ratio; and a control section that adjusts the intensity of light emitted from the light source lamp based on the projection distance and the reflected light intensity measured by the adjustment sensor and the zoom ratio detected by the zoom position sensor so as to keep the luminance of a projection image displayed on the projection object constant.Type: GrantFiled: October 31, 2008Date of Patent: August 13, 2013Assignee: NEC Display Solutions, Ltd.Inventor: Takeshi Kato
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Patent number: 8508857Abstract: A lens barrel that can realize increased shooting magnification and slimming down of an image pickup apparatus without increasing drive load and optical accuracy error in driving the lens barrel along an optical axis. A cam follower follows cam grooves in a cam cylinder to move along the optical axis, and engages with a lens holding frame to move the same from a retracted state to a shooting state. A compression coil spring urges the cam follower and the lens holding frame in such a direction as to draw them away from each other, and when the cam follower moves from the shooting state to the retracted state, engages with the lens holding frame to move the same toward an image plane. A fixed portion coming into abutment with the lens holding frame restricts movement of the lens holding frame toward the image plane.Type: GrantFiled: October 21, 2010Date of Patent: August 13, 2013Assignee: Canon Kabushiki KaishaInventor: Tomoyuki Kudoh
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Patent number: 8491127Abstract: A method for automatically focusing a projector includes a projection lens, a driver device and an image capturing device. The method sets an interval step according to a focusing range of the projection lens, reads a predefined picture from a storage system of the projector, and controls the projection lens to project the picture to a projection area. The method controls the image capturing device to capture an image of the picture from the projection area when the projection lens moves at every interval step, and analyzes a contrast of each of the images to determine an optimal image from the images. The method determines a current focus of the projection lens having the optimal image as an optimal focus of the projection lens, and drives the driver device to control the projection lens to move at the optimal focus.Type: GrantFiled: January 11, 2011Date of Patent: July 23, 2013Assignees: Hong Fu Jin Precision Industry (ShenZhen) Co., Ltd., Hon Hai Precision Industry Co., Ltd.Inventor: Guang-Jian Wang
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Patent number: 8491126Abstract: A projector includes an optical module, a lens and a heat conducting member. The heat conducting member is disposed between the optical module and the lens. The heat conducting member is used for conducting heat from the lens to the optical module.Type: GrantFiled: July 13, 2010Date of Patent: July 23, 2013Assignee: Qisda CorporationInventors: Yen-Feng Ko, Tsung-Hsun Wu
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Patent number: 8449121Abstract: An image processing system includes a determination unit that determines a distortion state of a projected image, and a correction unit. The correction unit determines a shape of the image after distortion correction according to the distortion state, moves the determined shape in a display area of an optical modulator in a first direction, performs distortion correction of the image, and moves the image after distortion correction in the display area of the optical modulator in a second direction which is opposite to the first direction.Type: GrantFiled: November 17, 2011Date of Patent: May 28, 2013Assignee: Seiko Epson CorporationInventor: Satoshi Aso
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Patent number: 8449124Abstract: A lens-adjusting module includes a base, a lens device, a second tray, and an adjusting device. The lens device includes a first tray and a lens being fixed to and contacting the first tray. The first and the second trays are movably disposed on and contact the base. The first tray is movably disposed on the second tray and located between the second tray and the base. The adjusting device includes a first lever and a second lever pivoted to the base. A part of the first lever and a part of the second lever are slidingly disposed on the first tray. The first lever rotates to drive the first and the second trays to move relatively to the base along a first axis. The second lever rotates to drive the first tray to move relatively to the second tray and the base along a second axis.Type: GrantFiled: July 12, 2010Date of Patent: May 28, 2013Assignee: Coretronic CorporationInventor: Yung-Chuan Tseng
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Patent number: 8451551Abstract: This image reading apparatus, includes: a first retaining member that retains a lens unit; a second retaining member that retains a sensor unit; and a positioning member that sets a relative position between the first retaining member and the second retaining member, wherein the positioning member comprises: a first concave portion that is sagged from a first contact surface to be in contact with the first retaining member; and a second concave portion that is sagged from a second contact surface to be in contact with the second retaining member, and the positioning member is fixed to the first retaining member and the second retaining member by an adhesive filled in the first concave portion and the second concave portion.Type: GrantFiled: March 28, 2011Date of Patent: May 28, 2013Assignee: Kyocera Document Solutions Inc.Inventor: Hideto Miyanagi
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Publication number: 20130120720Abstract: A lens position adjustment system (10) permits adjustment of the position of a projection lens (5) relative to a projector (100) for making a Scheimpflug adjustment. The projection lens (5) has an optical axis (6). The system (10) comprises: a first support part (20) for fitting to, or forming part of the projector (100); a second support part (40) for fitting to, or forming part of the projection lens (5); and a connecting part (30). The connecting part (30) is pivotally connected to the first support part (20) and pivotally connected to the second support part (40) and configured to permit independent adjustment of the second support part (40) relative to the first support part (20) about two axes of rotation (7, 8) which intersect, and are perpendicular to, the optical axis (6) of the projection lens (5). A locking mechanism (28, 29, 51-58) is provided for securing a position of the second support part (40) relative to the first support part (20).Type: ApplicationFiled: July 26, 2011Publication date: May 16, 2013Inventors: Frank Hellin, Daniel Lambot
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Patent number: 8439506Abstract: A reflector mounting structure includes a reflector and a fixing member. The reflector includes: a reflecting surface; a reflector body having the reflecting surface formed thereon; a pair of first connecting units provided respectively at an end face of the reflector body and having a substantially spherical first protrusion at an end thereof; and a second connecting unit provided at an end face of the reflector body. The fixing member which supports the reflector includes a pair of first supporting units respectively having a planar contact portion and bringing the contact portion into contact with an end of the first protrusion, and a second supporting unit. A contact-portion vertical distance is set such that the first protrusion moves while rolling with respect to a contact portion when the reflector deforms.Type: GrantFiled: June 24, 2010Date of Patent: May 14, 2013Assignee: Mitsubishi Electric CorporationInventors: Satoru Okagaki, Norihiro Watanabe, Atsushi Michimori
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Patent number: 8439507Abstract: A projector includes: an OSD processing section that generates a synthesized image formed by synthesizing an OSD image on a main image; an image projecting section that projects and displays the synthesized image; a zoom adjusting section that adjusts a zoom state of the image projecting section; and a zoom state detecting section that detects the zoom state that is adjusted by the zoom adjusting section, wherein the OSD processing section adjusts a size of the OSD image with respect to the main image based on the detection result of the zoom state detecting section.Type: GrantFiled: December 27, 2010Date of Patent: May 14, 2013Assignee: Seiko Epson CorporationInventor: Takaaki Ozawa
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Publication number: 20130113788Abstract: Disclosed herein are optical projection systems and related methods for projecting imagery employing shifting image position in-time to mitigate speckle. Exemplary optical systems may include a projector having a light source, a relay lens and at least one projection lens for projecting images. The relay lens or the projection lens may have at least one lens element that may be translated in-time substantially orthogonal to the optical axis of the optical system. Alternatively, the projection lens in its entirety may be shifted in-time to reduce speckle. Further, in stereoscopic embodiments, two projection lenses may be employed, wherein at least one element in each projection lens is moveable to shift the image in-time to reduce speckle. Moreover, electronic compensation, such as electronic addressing or image warping, for the image shifting may be employed to shift the image in a direction opposite to the speckle-reducing shift in position.Type: ApplicationFiled: November 2, 2012Publication date: May 9, 2013Applicant: REALD INC.Inventor: REALD INC.
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Patent number: 8434879Abstract: A focus evaluation value calculation unit acquires a captured image captured by an image capturing unit and then analyzes the image so as to calculate, as a focus evaluation value, a characteristic value that changes in accordance with the focus state of a video image adjusted by a focus adjustment unit. A focus evaluation value storage unit stores the focus evaluation value and a target value of a focus evaluation value. A focus state determination unit determines a display color of focus state information, which is shown as a graph with a color indicating the degree of focus. The focus state determination unit includes: a unit for calculating a change of the focus evaluation value; and a unit for determining the focus state information to be displayed by referring to a table that associates a combination of the change of the focus evaluation value, the focus evaluation value, and the target value with the display color of the focus state information.Type: GrantFiled: May 26, 2011Date of Patent: May 7, 2013Assignee: SANYO Electric Co., Ltd.Inventors: Naoyuki Nimura, Miwa Yoneda
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Patent number: 8425047Abstract: 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.Type: GrantFiled: February 17, 2012Date of Patent: April 23, 2013Assignee: Seiko Epson CorporationInventors: Morio Matsumoto, Shiki Furui, Masaru Kono
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Patent number: 8425057Abstract: A projection module adapted to be disposed in an electronic device is provided. The electronic device includes a main body and the projection module disposed in the main body. The projection module includes a chassis, a light source, a light valve, a first lens group, and a second lens group. The light source and the light valve are disposed on the chassis. The first lens group is fixed on the chassis. The second lens group is slidably assembled on the chassis and is disposed between the light valve and the first lens group. The light source is capable of providing a light beam, and the light beam is capable of emitting through the light valve, the second lens group, and the first lens group in sequence.Type: GrantFiled: April 13, 2010Date of Patent: April 23, 2013Assignee: Young Optics Inc.Inventors: Bo-Cheng Huang, Chih-Chien Lin, Wei-Szu Lin
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Patent number: 8419193Abstract: A projection apparatus including an illumination unit, a brightness detection circuit, a signal conversion circuit, and a control unit is provided. The illumination unit generates a light source according to a plurality of driving signals and provides a temperature sensing signal according to the temperature of the light source. The brightness detection circuit generates a plurality of brightness sensing signals. The signal conversion circuit converts the temperature sensing signal and the brightness sensing signals into temperature information and a plurality of brightness information. The control unit comprises a setting table for storing a predetermined temperature information and a plurality of predetermined brightness information, and the control unit adjusts the driving signals in order to identify the converted temperature information and the converted brightness information conform to the stored information in the setting table.Type: GrantFiled: September 10, 2010Date of Patent: April 16, 2013Assignee: Himax Display, Inc.Inventors: Chia-Chun Kuo, Chia-Cheng Lai, Chih-Hung Yang, Ming-Cheng Chiu
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Patent number: 8419190Abstract: A auto-focusing method for projection of a computing device with imaging function is illustrated. The computing device exemplarily includes a projection unit, an image receiving unit, and a processing unit. The method firstly controls the projection unit to project images on plural positions along an optical axis. The method then controls the image receiving unit to receive the images, which are regarded as candidate images, projected on the positions by the projection unit. The candidate images correspond to the projective positions. The method further receives the candidate images captured by the image receiving unit, and compute their definitions. Therefore, the image with a greatest definition may be acquired and regarded as a focus image. The focus image's corresponding position is a focus position. After acquiring the focus position, an image may be projected thereon. The illustrated computing device is enabled to complete the image focusing automatically.Type: GrantFiled: January 12, 2011Date of Patent: April 16, 2013Assignees: Silitek Electronic (Guangzhou) Co., Ltd., Lite-On Technology CorporationInventors: Yung-Yu Huang, Hsi-Pin Li
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Patent number: 8416467Abstract: A fixture structure is disclosed that is able to independently adjust relative positions of constituent components in different directions and able to reduce workload of the relative position adjustment. The fixture structure includes plural members fixed with each other by screws, a first adjustment unit for adjusting relative positions of two or more of the members in a first direction and arranged on surfaces of the two or more members parallel to the first direction, and a second adjustment unit for adjusting relative positions of two of more of the members in a second direction intersecting with the first direction and arranged on surfaces of the two or more members parallel to the second direction.Type: GrantFiled: July 11, 2007Date of Patent: April 9, 2013Assignee: Ricoh Company, Ltd.Inventor: Mitsuru Nakajima
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Patent number: 8414133Abstract: A projection display device comprises a projection lens section to which light modulated by a light modulating element is entered, a mirror section for reflecting the light emitted from the projection lens section to reflect to the projection lens section side and directing the light to a projection plane, and an operation section for displacing a lens in the projection lens section. The operation section is disposed in a region in which the operation section does not hinder an optical path of the light that has been passed through a projection port provided in a main body cabinet.Type: GrantFiled: July 17, 2012Date of Patent: April 9, 2013Assignee: SANYO Electric Co., Ltd.Inventors: Takaharu Adachi, Shinichi Okuno, Ryuhei Amano, Takashi Ikeda, Takashi Miwa
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Patent number: 8408717Abstract: A projection type image display apparatus includes a first lens group including a plural number of lenses being disposed in a direction of propagation light with respect to an image display element, a second lens group including a plural number of lenses being disposed in a direction of propagation light with respect to said first lens group and a reflection mirror, which is configured to reflect light emitted from at least one of said first and second lens groups, so as to project the light obliquely upon a screen. A ratio (Lo/Lp) of a diagonal size (Lo) of said screen and a distance (Lp) from a center of said reflection mirror to said screen is at least 2, and the second lens group includes a refractive lens having a negative power and a rotationally symmetric surface configuration.Type: GrantFiled: May 16, 2012Date of Patent: April 2, 2013Assignee: Hitachi, Ltd.Inventors: Koji Hirata, Takanori Hisada, Masahiko Yatsu
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Patent number: 8411211Abstract: A projection type video display device is provided, which is capable of displaying a plurality of kinds of input videos with different aspect ratios without requiring cumbersome adjustment operations.Type: GrantFiled: August 24, 2009Date of Patent: April 2, 2013Assignee: Panasonic CorporationInventor: Tamotsu Akeyama
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Patent number: 8411381Abstract: A lens barrel includes a lens frame which is movable while supporting a lens; and a restriction portion configured to restrict movement of the lens frame by contacting the lens frame. The lens frame and the restriction portion contact each other at a plurality of points.Type: GrantFiled: January 4, 2011Date of Patent: April 2, 2013Assignee: Panasonic CorporationInventor: Itaru Doi
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Patent number: 8400552Abstract: Projection capabilities are provided in consumer electronic devices that are used for the capture or reproduction of images, such as digital still image cameras, digital video cameras, cellular telephones, DVD players and other digital video players. Such devices can display images to several people simultaneously in a manner that is more convenient than the use of miniature onboard displays. The incorporation of image projection capabilities also enables image generation to be provided by the device itself without the necessity of an independent display device.Type: GrantFiled: January 13, 2009Date of Patent: March 19, 2013Assignee: Sanyo Electric Co., Ltd.Inventors: Hiroyuki Adachi, Norihiko Morimoto
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Patent number: 8388150Abstract: An image forming system is described that includes a light source that provides a light beam and an anamorphic refractive optical element. A first outer surface of the anamorphic element faces the light source and includes a toric surface. The light beam is incident upon the first outer face and then an incident surface of the anamorphic element. The anamorphic element directs the light beam to an image forming device. An illumination system is also described where an anamorphic element includes a toric surface and a facet surface.Type: GrantFiled: February 15, 2012Date of Patent: March 5, 2013Assignee: 3M Innovative Properties CompanyInventor: William E. Phillips, III
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Patent number: 8388151Abstract: An interactive image projecting device that projects an image onto a display surface and controls the projected image based upon the detection or identification of the device housing or the remote object. The device has a touch-sensitive, flexible housing that may be transformed into different shapes. The image projecting device includes a projector that generates an image from a control unit. The device includes an illuminating emitter, which illuminates the device body and remote objects, and a light sensor that is operable to detect the position of its housing or remote object. Based upon the sensed housing or remote object, the control unit operates to modify the image projected from the device such that the image from the device can interact with its housing or remote object.Type: GrantFiled: July 23, 2009Date of Patent: March 5, 2013Inventor: Kenneth J. Huebner
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Publication number: 20130044298Abstract: Disclosed are a focus regulating apparatus for use with a projector and a projector using the same. The apparatus has a structure which is designed to overcome asymmetry in focus regulation due to the optical characteristics of the projector. The focus regulating apparatus of a projector includes: a focus regulator, which is provided in a projection lens unit of a projector main body so that the focus can be regulated by rotating a lens barrel of the projection lens unit; and an actuator, which gears with the focus regulator and moves rectilinearly with respect to the projector main body, thereby causing the focus regulator to rotate. The rotation of the focus regulator is varied when the actuator rectilinearly moves at a constant speed. The apparatus thus enables an asymmetry in focus regulation to be overcome when a screen size for the projector is adjusted.Type: ApplicationFiled: August 17, 2012Publication date: February 21, 2013Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Joon-young JUNG, Jae-geun LIM, Jun-seok PARK
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Patent number: 8376556Abstract: Provided is a focus unit fastening device for a projector, in which a plurality of fastening portions for coupling a focus unit to the projector by pushing and inserting the focus unit into the projector are formed integrally with a main body housing and the focus unit. The focus unit fastening device includes a projector main body housing, a focus unit engaged to the main body housing, a first fastening portion provided on the main body housing and the focus unit to fasten the focus unit to the main body housing by pushing the focus unit in a first direction and to prevent the focus unit from moving in a second direction perpendicular to the first direction, and a second fastening portion provided on the main body housing and the focus unit to fasten the focus unit to the main body housing by pushing the focus unit in the first direction and to prevent the focus unit from moving in the first direction.Type: GrantFiled: July 14, 2010Date of Patent: February 19, 2013Assignee: Samsung Electronics Co., LtdInventor: Joong-Wan Park
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Patent number: 8376555Abstract: A projector includes a casing, a light source disposed in the casing and capable of providing an illumination beam, a light valve disposed in the casing and capable of converting the illumination beam into an image beam, a lens disposed in the casing and adapted to project the image beam, and the lens collar module. The lens collar module includes a fitting part and a lens collar. The fitting part is formed on the casing, and has a fitting opening and a first bump. The lens collar has a fitting periphery and a second bump. The fitting periphery is fitted to the fitting opening, the lens collar is adapted to be rotated and translated relative to the casing along an axial direction. Engagement of the first bump and the second bump limits rotation and translation of the lens collar relative to the casing along the axial direction.Type: GrantFiled: September 7, 2010Date of Patent: February 19, 2013Assignee: Coretronic CorporationInventors: Chia-Tien Chen, Li-Pin Hsu
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Patent number: 8366281Abstract: In a coherent light projection system including an image forming system, a relay system, a speckle reduction element, and a projection subsystem, the relay system can have a first f-number, and the projection subsystem can have a second f-number less than the first f-number. The relay system can have a first working distance, and the projection subsystem can have a second working distance less than the first working distance. The image forming system can project an initial image having a first size, and an intermediate image can have a second size greater than or equal to the first size. The speckle reduction element can have a curved surface through which the intermediate image is transferred. The speckle reduction element can include a lenslet arrangement formed on a surface thereof. The speckle reduction element can be moved in a direction parallel to an optical axis of the speckle reduction element.Type: GrantFiled: May 21, 2009Date of Patent: February 5, 2013Assignee: Eastman Kodak CompanyInventors: Barry D. Silverstein, Gary E. Nothhard, Joseph R. Bietry, Robert Metzger, Andrew F. Kurtz
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Patent number: 8366282Abstract: Described herein are devices that provide projection-type video output in a portable and flexible design. The design includes a projection chamber, a base, and an interface that permits relative positioning between the projection chamber and base. The base maintains the position of the display device. The projection chamber includes components responsible for the production of images based on received video data and components responsible for the projection of those images. Relative pointing between the projection chamber and base allows the projection chamber to be pointed—and an output projected image to be positioned—with minimal effort.Type: GrantFiled: February 27, 2012Date of Patent: February 5, 2013Assignee: Transpacific Image, LLCInventor: William J. Plut
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Patent number: 8366280Abstract: A lens adjusting device including a frame, a lens, a base, at least a positioning structure, and a locking device is provided. The lens is fixed on the frame. The base has a through hole with a predetermined shape formed thereon. The positioning structure is disposed on the base for movably positioning the frame on a plane above the base. The locking device including a screw, a nut, and a fixer is capable of fixing the frame to the base. The screw penetrates the frame and extends to below the base through the through hole of the base. The size of the through hole is greater than the size of a corresponding cross-section of the screw. The nut is disposed below the base and assembled to the screw to position the screw on the base. The fixer is disposed on the frame to constrain the rotation of the nut.Type: GrantFiled: May 21, 2009Date of Patent: February 5, 2013Assignee: Coretronic CorporationInventor: Yung-Chuan Tseng
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Patent number: 8356907Abstract: A host computer includes a host machine and a projector. The host machine has a keyboard. The projector is positioned about the keyboard and includes a projection lens. A using position of the projection lens is higher than a received position of the projection lens.Type: GrantFiled: July 25, 2009Date of Patent: January 22, 2013Assignee: Giga-Byte Technology Co., Ltd.Inventors: Pao-Hsian Chan, Hsin-Yi Hsu, Muh-Jin Uang
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Publication number: 20130009862Abstract: A display apparatus including an image generator, a projection lens set, a depth detecting module detecting the position of user, and a control unit is provided, wherein the control unit is electrically connected to the image generator, the projection lens set and the depth detecting module. An image displayed by the image generator is projected through the projection lens set and generates a floating real image between the projection lens set and the user. Each beam forming the floating real image has a light-cone angle ?. The image generator and the projection lens adjust the position of the floating real image according to the position of user.Type: ApplicationFiled: May 24, 2012Publication date: January 10, 2013Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTEInventors: Yi-Jen Chan, Golden Tiao, Chang-Ying Chen, Chy-Lin Wang, Kun-Lung Tseng, Shang-Yi Lin
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Publication number: 20130003025Abstract: A projection apparatus includes an optical engine base, a light source, a light valve, a lens module, and a fan. The light source is disposed at the optical engine base for emitting an illumination beam. The light valve is disposed at the optical engine base for converting the illumination beam into an image beam. The lens module is disposed at the optical engine base and includes a lens barrel and a lens assembly disposed in the lens barrel for converting the image beam into a projection beam. The fan is disposed at the optical engine base, and adjacent to the lens module. The fan is used for providing an air flow to cool the lens module.Type: ApplicationFiled: March 21, 2012Publication date: January 3, 2013Applicant: CORETRONIC CORPORATIONInventors: Chuan-Te Cheng, Tao- Hung Kuo
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Patent number: 8342698Abstract: Disclosed is a focusing device for a beam projector, which includes an adjustment member mounted on a housing of the beam projector to be linearly movable, a pivoting member rotatably mounted on the housing, a link member extending from the pivoting member at a point separated from a rotation axis of the pivoting member, and a lens assembly mounted to be linearly movable within the housing while interfering with the pivoting member, in which the link member rotates the pivoting member according to the linear movement of the adjustment member and the lens assembly linearly moves within the housing according to the rotation of the pivoting member. The focusing device can perform fine focusing and adjust the focusing distance without using a gear or motor to make the beam projector compact and mount the beam projector on the portable terminal.Type: GrantFiled: February 17, 2010Date of Patent: January 1, 2013Assignee: Samsung Electronics Co., LtdInventor: Dong-Hi Lee
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Patent number: 8345361Abstract: The invention discloses a lens adjusting module for adjusting the position of a lens module. The lens adjusting module includes an input rod and an output rod, wherein the input rod is configured along a first direction and has an inclined surface. The output rod is configured along a second direction perpendicular to the first direction. The output rod has a first contact surface contacting the inclined surface, and a second contact surface contacting the lens module. When the input rod moves along the first direction, the first contact surface of the output rod moves along the inclined surface of the input rod, and the lens module moves with the output rod along the second direction.Type: GrantFiled: November 25, 2010Date of Patent: January 1, 2013Assignee: Qisda CorporationInventors: Huan-Yu Lin, Sheng-wen Hu
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Publication number: 20120320345Abstract: 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: ApplicationFiled: February 28, 2011Publication date: December 20, 2012Applicant: ELECTROLUX HOME PRODUCTS CORPORATION N.V.Inventors: Oliver Kleinert, Honghua (Terry) Hu, Franz-Josef Wipperfurth, Werner Braun
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Publication number: 20120320347Abstract: A projection optical system which, when projecting an image of an optical modulator onto a projection surface on an enlarged scale, differs the aspect ratio of the image of the optical modulator and the aspect ratio of the image projected onto the projection surface, and includes, in order from the projection surface, a first group which is an enlargement optical system; a second group includes an adjustment optical component with a surface rotationally asymmetrical to an optical axis, when defining at least one direction of the vertical direction and the horizontal direction of the optical modulator as an adjustment direction in which conversion adjustment using compression or extension is performed, the adjustment optical component having at least one optical system which differs in power between the adjustment direction and another direction; and a third group which has a correction optical component with a surface rotationally symmetrical to the optical axis.Type: ApplicationFiled: June 14, 2012Publication date: December 20, 2012Applicant: SEIKO EPSON CORPORATIONInventors: Eiji MORIKUNI, Makoto OTANI
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Publication number: 20120320346Abstract: The present invention provides an image display device that includes projection lens (150) configured to project an image to a projection surface, and openable/closable lens cover (161) for covering the front of projection lens (150). The image display device includes focus adjustment control unit (320) that adjusts the focus of projection lens (150), and open/close detection unit (160) that detects the opened/closed state of lens cover (160) to notify focus adjustment control unit (320) of the result. Focus adjustment control unit (320) stops the focus adjustment when it is notified of the closing of lens cover (161) by open/close detection unit (160).Type: ApplicationFiled: January 19, 2010Publication date: December 20, 2012Inventors: Kazuaki Sakamoto, Yasuhiro Ochiai
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Publication number: 20120314115Abstract: A projector includes: a laser light source that emits laser light; a condensing optical system that collimates the laser light; a holographic recording medium that, when laser light for reproduction is incident thereupon, emits a reproduced holographic optical image on the basis of a holographic image; a light modulation element that modulates the reproduced holographic optical image and emits the result to a projection optical system as an optical image for projection; a projection optical system that projects the optical image for projection; and a focal depth adjustment unit that adjusts a focus depth of the ray bundle projected by the projection optical system.Type: ApplicationFiled: June 8, 2012Publication date: December 13, 2012Inventor: Akinobu SUGA
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Patent number: 8328370Abstract: A projector includes a housing, a lens module pivotally connected to the housing, a first adjustment mechanism adjusting a pitch of the housing, and a second adjustment mechanism adjusting a pitch of the lens module. The first adjustment mechanism includes a threaded base fixed to the housing, and a support leg extending out of the housing and comprising a threaded portion. The second adjustment mechanism includes a first gear driven by the support leg, a second gear engaging the first gear, a first threaded member fixed to the second gear, a first connecting member pivotally connected to the lens module, a second connecting member slidably connected to the first connecting member, and a second threaded member. The second threaded member is fixed to the second connecting member, and threaded on and slidable relative to the first threaded member.Type: GrantFiled: October 25, 2010Date of Patent: December 11, 2012Assignee: Hon Hai Precision Industry Co., Ltd.Inventors: Ming-Chih Hsieh, Tsung-Hsi Li
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Patent number: 8328369Abstract: The projecting zoom lens includes, sequentially from its magnification side, a negative first lens group, a positive second lens group, a negative third lens group, a positive fourth lens group, a positive or negative fifth lens group, and a positive six lens group, while the reduction side of the projecting zoom lens is formed as a telecentric system. When the power of the zoom lens is varied, the first lens group and sixth lens group are fixed, while the second to fifth lens groups move. In such power varying operation, the movement of the third lens group advances from the magnification side to the reduction side as the zoom lens goes from the wide angle end toward the tele end.Type: GrantFiled: March 29, 2010Date of Patent: December 11, 2012Assignee: Fujinon CorporationInventor: Masaru Amano
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Publication number: 20120293778Abstract: Provided is a lens shifting device that has a simple structure and a small number of components, is compact and lightweight, and has high positional accuracy and slidability. The lens shifting device includes: first plate (12) through which video light passes; second plate (13) connected to first plate (12) via elastic member (23) and having projection lens (6) attached to a position into which the video light that passed through first plate (12) enters; slider (27) disposed to project from second plate (13) and housed in first plate (12) to be movable in a predetermined direction; and guide shaft (14) attached to first plate (12) in the state of being engaged with slider (27) and rotated to move the second plate. Elastic member (23) is disposed between first plate (12) and second plate (13) to connect first plate (12) and second plate (13) in the state of generating an elastic contraction force.Type: ApplicationFiled: March 2, 2010Publication date: November 22, 2012Inventors: Kunitaka Furuichi, Takayuki Okada
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Patent number: 8313197Abstract: A pattern projecting apparatus usable with a three-dimensional imaging apparatus includes a light generator which emits a light beam, and a pattern adjusting unit disposed in front of the light generator. The pattern adjusting unit forms a projection pattern on an object, and adjusts a focus of the light beam emitted from the light generator.Type: GrantFiled: June 19, 2009Date of Patent: November 20, 2012Assignee: Samsung Electronics Co., Ltd.Inventors: Jeong-yub Lee, Seung-wan Lee, Woon-bae Kim, Seung-tae Choi
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Patent number: 8303120Abstract: An image display apparatus includes a projector receiving an image signal and projecting image light and a screen including a projection plane of arbitrary shape. The projector and screen are connected with link mechanisms and link mechanisms. The relative position and posture between the projector and the screen are automatically or manually changeable. The relative position and posture between the projector and the screen are measured, and correction parameters for correcting distortion of image light projected from the projector onto the screen are calculated from the previously set viewing position of the viewer and the shape of the projection plane of the projector. Based on the calculated correction parameters, the image signal inputted into the projector is subjected to distortion correction processing. It is therefore possible to allow the viewer to see a clear image even if the position of the screen is changed.Type: GrantFiled: February 21, 2007Date of Patent: November 6, 2012Assignee: Panasonic CorporationInventors: Hiroshi Hoshino, Ryo Kawamura, Atsuyuki Yamamoto
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Patent number: 8297760Abstract: Embodiments include an image processing device having a lens-shift amount acquisition section adapted to acquire an amount of shift of a projection lens of an image display apparatus, and an image signal correction section adapted to correct the image signal corresponding to a sub-pixel of a pixel in accordance with the amount of shift acquired by the lens-shift amount acquisition section to correct displacement of the sub-pixel relative to another sub-pixel of the pixel due to the lens-shift.Type: GrantFiled: March 23, 2009Date of Patent: October 30, 2012Assignee: Seiko Epson CorporationInventors: Takumi Aragaki, Hiroshi Hasegawa
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Patent number: 8297756Abstract: An illumination device is including an illumination body and a hollow sleeve. A light emitting element and a transparent sheet is disposed in the illumination body. A first convex lens is disposed in the hollow sleeve. The light emitting element, the transparent sheet, and the first convex lens are arranged sequentially along a moving direction. When the hollow sleeve is operated to move along the moving direction, the first convex lens is moved with respect to the light emitting element and the transparent sheet, and the projection facula is changed from presenting a light source pattern of the light emitting element to a predetermined pattern of transparent sheet.Type: GrantFiled: May 19, 2010Date of Patent: October 30, 2012Inventors: Chieh Ouyang, Wei Ouyang
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Patent number: 8292440Abstract: A projection module includes a base, a light source, a light valve, a lens module, and an adjustment module. The light source is disposed on the base and capable of providing an illumination beam. The light valve is disposed on the base and capable of converting the illumination beam into an image beam. The lens module is slidably disposed on the base and capable of projecting the image beam. The adjustment mechanism includes a rolling wheel and a slide pin. The rolling wheel is pivotably mounted to the base and includes a slide groove. The slide pin is fixed to the lens module and extends into the slide groove. The rolling wheel is capable of pivoting to drive the slide groove to pivot and the slide groove moves the slide pin to drive the lens module to move with respect to the base when the slide groove pivots.Type: GrantFiled: August 5, 2010Date of Patent: October 23, 2012Assignee: Young Optics Inc.Inventors: Chi-Wei Chang, Wei-Szu Lin, Hsu-Chun Cheng
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Patent number: 8292438Abstract: A projection image display device includes a light source; an illumination optical system that uniformly irradiates a surface of an image modulating element (primary image surface) with a light beam emitted from the light source; and a projection optical system that performs with respect to a screen (a secondary image surface) extended projection on image information provided at the primary image surface and modulated by the image modulating element. The projection optical system includes a first optical system having a positive refractive power, and a second optical system having a concave reflecting surface. The first optical system has a common optical axis at which all optical components of the first optical system have rotationally symmetric surfaces, and a screen shift function that causes the secondary image surface to be moved by moving at least one of the optical components of the first optical system substantially perpendicularly to the optical axis.Type: GrantFiled: November 20, 2009Date of Patent: October 23, 2012Assignee: Sony CorporationInventor: Jun Nishikawa