Lens Position Adjustable Patents (Class 353/101)
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Patent number: 9706179Abstract: A projection method of an electronic device, the electronic device has projection module. The method includes: detecting motion information of the electronic device to obtain a motion parameter; determining whether the motion parameter meets a predetermined condition; and adjusting an operating state of the projection module to match a motion state of the electronic device if the motion parameter meets the predetermined condition.Type: GrantFiled: June 26, 2015Date of Patent: July 11, 2017Assignee: Lenovo (Beijing) Co., Ltd.Inventor: Xiaodan Zhang
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Patent number: 9703180Abstract: A projection apparatus includes a light source, a light valve, and a lens module. The light source provides a light beam. The light valve converts the light beam into an image beam. The lens module converts the image beam into a projecting beam and includes a lens and a locking structure. The locking structure is connected to the lens and includes a first plate, a second plate, a moving element, and a first pushing element. The second plate is disposed between the first plate and the lens and firmly fixed to the lens. A groove is formed between the first plate and the second plate, and the groove has withstanding holes arranged along a first direction. The moving element is disposed between the first plate and the second plate. The first pushing element is disposed between the moving element and the second plate.Type: GrantFiled: March 24, 2015Date of Patent: July 11, 2017Assignee: CORETRONIC CORPORATIONInventors: Chi-Chen Chen, Chia-Tien Chen
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Patent number: 9678413Abstract: A projector includes a projecting unit including a projection optical system and configured to project an image on a screen SC, a lens driving unit configured to perform focus adjustment for the projection optical system, a trapezoidal-distortion correcting unit configured to perform distortion correction processing for correcting distortion of the image projected by the projecting unit, and a projection control unit configured to cause the trapezoidal-distortion correcting unit to execute the distortion correction processing until a completion condition for the distortion correction processing holds after a start condition for the distortion correction processing holds and restrict the execution of the focus adjustment by the lens driving unit while the projection control unit causes the trapezoidal-distortion correcting unit to execute the distortion correction processing.Type: GrantFiled: March 6, 2013Date of Patent: June 13, 2017Assignee: SEIKO EPSON CORPORATIONInventor: Shiki Furui
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Patent number: 9657932Abstract: There is provided a light source apparatus including a light source, a spreader to spread heat, and a conductor having a plurality of parts to conduct heat diffused from the light source. There is also provided a projector apparatus includes the light source apparatus.Type: GrantFiled: March 29, 2016Date of Patent: May 23, 2017Assignee: SONY CORPORATIONInventor: Takashi Takamatsu
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Patent number: 9575398Abstract: A projector includes a projection optical apparatus that projects an image and a projection position adjustment apparatus that moves the projection optical apparatus in orthogonal directions orthogonal to a central axis of the projection optical apparatus. The projection position adjustment apparatus includes a first movable member that supports the projection optical apparatus, a support member that supports the first movable member movably in the orthogonal directions, and a first transmission unit that moves in the orthogonal directions with the first transmission unit engaging with the first movable member to move the first movable member in the orthogonal directions. The first transmission unit is disposed in a position where the first transmission unit overlaps with part of the first movable member when the projection position adjustment apparatus is viewed along the central axis of the projection optical apparatus.Type: GrantFiled: March 17, 2015Date of Patent: February 21, 2017Assignee: Seiko Epson CorporationInventor: Yohei Sakai
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Patent number: 9568812Abstract: An image projection apparatus comprises a projection unit configured to project an image onto a projection plane, a correction unit configured to correct a range of the image projected by the projection unit, a deformation unit configured to deform the projected range of the image according to a designated correction point, and a control unit configured to optically change the projected range of the image projected by the projection unit according to a designation of an outside of a predetermined range as the correction point.Type: GrantFiled: July 23, 2013Date of Patent: February 14, 2017Assignee: Canon Kabushiki KaishaInventor: Nobuhiro Oka
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Patent number: 9535312Abstract: A lens shift mechanism includes a movable portion configured to support a projection lens and movable in two directions orthogonal to each other in a plane orthogonal to an optical axis; first and second operating units configured to generate drive forces for moving the movable portion in the two directions, respectively, first and second rotating portions to which the drive forces generated by the first and second operating units are transmitted, and a lock mechanism configured to be capable of switching between a locked state in which the two operating units are locked and an unlocked state in which the two rotating portions are rotatable, and the lock mechanism includes first and second locking members configured to lock the first and second rotating portions respectively and a lever mechanism configured to move the two locking members.Type: GrantFiled: September 1, 2015Date of Patent: January 3, 2017Assignee: Seiko Epson CorporationInventor: Akira Nemura
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Patent number: 9528825Abstract: A method is provided for calibrating a position-measuring system which includes the following steps: a) multiple measurements of positions of a structure of a sample held by a sample stage at different pressures of the gaseous medium in which the sample stage is arranged, b) ascertaining the pressure dependence when determining actual positions by use of an evaluation unit, c) establishing a calibration rule based on the ascertained pressure dependence, and d) applying the calibration rule when determining the actual positions.Type: GrantFiled: July 10, 2014Date of Patent: December 27, 2016Assignee: Carl Zeizz SMT GmbHInventors: Carola Blaesing-Bangert, Alexander Huebel
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Patent number: 9360741Abstract: A camera assembly includes a camera and a rotating mechanism configured to drive the camera to rotate. The rotating mechanism includes a base, a driving device, a first driving gear, a second driving gear connected with the camera, and a switch gear. The driving device, the second driving gear, and the switch gear are located on the bracket. The first driving gear is located on the base. The switch gear is driven to selectively engage with the one of the first driving gear and the second driving gear. When the switch gear is connected with the first driving gear, the bracket is driven to rotate and rotate the camera on a first plane. When the switch gear is connected with the second driving gear, the driving device drives the camera to rotate via the switch gear and the second driving gear.Type: GrantFiled: October 24, 2014Date of Patent: June 7, 2016Assignee: HON HAI PRECISION INDUSTRY CO., LTD.Inventor: Cheng-Yi Lai
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Patent number: 9285661Abstract: A projector includes a light source section that outputs light, a light modulator that modulates the light outputted from the light source section based on image information, a projection lens that projects the modulated light, an enclosure that accommodates the light source section, the light modulator, and the projection lens, a base that supports the projection lens and fixes the projection lens to the enclosure, and a restricting portion that restricts movement of the base.Type: GrantFiled: October 16, 2013Date of Patent: March 15, 2016Assignee: Seiko Epson CorporationInventor: Keita Tsukioka
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Patent number: 9279566Abstract: Disclosed is a light deflector including a light-emitting element configured to emit a light beam with a substantially elliptical cross-sectional shape, and a lens configured to condense light emitted from the light-emitting element, wherein an optical axis of the light-emitting element and an optical axis of the lens are decentered and a longitudinal axis of the light beam with the substantially elliptical cross-sectional shape is arranged in a direction orthogonal to a direction of decentering on the lens.Type: GrantFiled: August 6, 2013Date of Patent: March 8, 2016Assignee: RICOH COMPANY, LTD.Inventors: Takehiro Nishimori, Kazuhiro Fujita, Toshiharu Murai, Ikuo Maeda, Tatsuya Takahashi
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Patent number: 9264680Abstract: An image processing apparatus includes a projecting unit configured to project an image; an image capturing unit configured to capture the projected image to generate a captured image; an area identifying unit configured to identify a high-lightness area and a low-lightness area of the captured image; and a correcting unit configured to correct a lightness of the projected image in a manner that gradually changes the lightness of the high-lightness area of the captured image obtained by projecting a white image to the lightness of the low-lightness area of the captured image and sets the lightness thus changed as the lightness of the projected image. The projecting unit projects the projected image having the corrected lightness and an image to prompt a user for a response to the change in the lightness of the projected image.Type: GrantFiled: June 19, 2012Date of Patent: February 16, 2016Assignee: Ricoh Company, LimitedInventor: Fumihiro Hasegawa
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Patent number: 9261758Abstract: A projection-type image display apparatus includes a display device and a projection optical system. The projection optical system includes a first lens group having a positive power as a whole, and a second lens group having a negative power as a whole. The second lens group includes a first lens and a second lens in an order from the display device side, both of which have negative powers. When the first lens is moved toward the display device and the second lens is moved away from the display device with reference to positions of the first lens and the second lens in a direction of an optical axis when an image surface is planar, a focal position of the peripheral light becomes closer to the projection optical system in the direction of the optical axis than a focal position of the on-axis light, and the image surface is made concave to the projection optical system side.Type: GrantFiled: November 27, 2012Date of Patent: February 16, 2016Assignee: Mitsubishi Electric CorporationInventor: Muneharu Kuwata
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Patent number: 9250124Abstract: A laser patterning examining apparatus includes a fixing plate, a rotating plate configured to move vertically with respect to the fixing plate and to rotate, a housing connected to the rotating plate, a laser emission unit over the fixing plate and emits a laser beam, a prism unit on the housing and refracts a first portion of the laser beam received from the laser emission unit and transmits a second portion of the laser beam, and a beam profiler on the housing and analyzes the pattern of the first portion refracted by the prism unit.Type: GrantFiled: June 18, 2013Date of Patent: February 2, 2016Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Seok-Joo Lee, Jin-Hong Jeun
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Patent number: 9189836Abstract: A measurement pattern having a predetermined shape and L-shaped black areas are superimposed and output to a liquid crystal panel, and a pattern is detected from a taken pattern image. Lines are detected based on an image of a screen frame in the pattern image, and coordinate conversion factors for conversion of camera coordinates in the taken image into panel coordinates are calculated based on panel coordinate values of the pattern and camera coordinate values of the pattern detected from the pattern image. Then, apexes of the screen frame in the panel coordinates are obtained based on the lines and the conversion coordinate factors detected with respect to each corner, correction values are calculated, and trapezoidal distortion correction is performed.Type: GrantFiled: March 4, 2013Date of Patent: November 17, 2015Assignee: SEIKO EPSON CORPORATIONInventor: Shiki Furui
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Patent number: 9170396Abstract: An appropriate operation angle (actuation angle) corresponding to a use is obtained by a relatively simple structure. A focus ring 20 is mounted around a focus cam 10. When the focus ring 20 is moved to a front end side, a gear formed in the focus ring 20 meshes with a gear 17 of the focus cam 10 and the rotation of the focus ring 20 is directly transmitted to the focus cam 10. When the focus ring 20 is moved to a rear end side, the gear formed in the focus ring 20 meshes with pinions 15 mounted on the focus cam 10 and the rotation of the focus ring 20 is directly transmitted to the focus cam 10 through the pinions 15. A half of the rotation angle of the focus ring 20 is the same as the rotation angle of the focus cam 10.Type: GrantFiled: December 10, 2014Date of Patent: October 27, 2015Assignee: FUJIFILM CORPORATIONInventors: Masahiro Hideshima, Tsuyoshi Mitarai, Atsushi Misawa
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Patent number: 9104093Abstract: An illumination optical system includes a lens unit that is arranged on a path of an emitted light to an image forming element for forming an image; a holding unit that holds the lens unit; and an elastic body that is attached to the holding unit, and has integrally-formed first and second parts, the first part being biased in a direction of an optical axis of the light to press the lens unit, and the second part being biased in a direction perpendicular to the direction of the optical axis to press the lens unit.Type: GrantFiled: September 26, 2013Date of Patent: August 11, 2015Assignee: RICOH COMPANY, LIMITEDInventors: Tetsuya Fujioka, Masamichi Yamada, Yasunari Mikutsu, Hideo Kanai, Satoshi Tsuchiya, Naoyuki Ishikawa, Motohisa Ikeda
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Patent number: 9106844Abstract: A projector that acquires evaluation values representing how well projection light is brought into focus on a screen, outputs the acquired evaluation values and a maximum value of the acquired evaluation values, and updates the maximum value to a new value at a predetermined timing.Type: GrantFiled: July 8, 2014Date of Patent: August 11, 2015Assignee: SEIKO EPSON CORPORATIONInventors: Yoshitaka Nakashin, Shiki Furui
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Patent number: 9083781Abstract: A portable image-capturing device with embedded projector comprises a control integrated circuit; an image-capturing module coupled to said control integrated circuits for capturing an image; a memory coupled to said control integrated circuits for storing said captured image; a projection module coupled to said control integrated circuits to project said captured image stored in said memory or from an external device outside said portable image-capturing device; wherein said projection module includes a color control module coupled to a light source unit for switching said light source unit to emit R, G, B color light in sequence; a reflective-type panel coupled to said control integrated circuits so as to reflect light fed from said light source unit; and a projection lens positioned in the reflected light path from said reflective-type panel to project the image.Type: GrantFiled: June 3, 2011Date of Patent: July 14, 2015Assignee: Bascule Development AG LLCInventor: Kuo-Ching Chang
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Patent number: 9057367Abstract: A cooling device is provided. The cooling device may include a pump chamber, an inlet flow passage that is used for allowing a fluid to flow into the pump chamber, an outlet flow passage that allows the fluid to flow out from the pump chamber, a pump that includes a fluid resistance element that opens or closes the inlet flow passage between the inlet flow passage and the pump chamber, a circulation flow passage that is used for circulating the fluid from the outlet flow passage to the inlet flow passage, and a first volume adjusting chamber that adjusts pressure of the fluid flowing into the pump chamber.Type: GrantFiled: September 15, 2011Date of Patent: June 16, 2015Assignee: Seiko Epson CorporationInventors: Takeshi Seto, Atsuya Hirabayashi
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Patent number: 9055237Abstract: Techniques are described for projecting content onto surfaces and for focusing the content. When content is projected by a projector onto a surface, the surface is observed by a camera or other sensor, and the contrast of the projected content is evaluated. The projector then varies its focal point to improve or maximize the observed contrast of the projected content.Type: GrantFiled: June 1, 2012Date of Patent: June 9, 2015Assignee: Rawles LLCInventors: Samuel Henry Chang, Weijian Wang
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Patent number: 9033519Abstract: There is provided a projection device including a device main body, and an open/close unit having a projection lens, the open/close unit being connected to the device main body in a manner openable and closable about an open/close axis formed in a vertical direction of the device main body and in a manner rotatable about a rotation axis that is perpendicular to the open/close axis. The projection lens is, in a closed state in which the open/close unit is closed with respect to the device main body such that the projection lens faces outward, provided on an upper side of the rotation axis of the open/close unit.Type: GrantFiled: September 19, 2011Date of Patent: May 19, 2015Assignee: SONY CORPORATIONInventors: Tatsuya Yamazaki, Katsumi Ikuta, Atsuko Kashiwagi, Nobutaka Saitoh, Nobuhito Ebine
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Patent number: 9036282Abstract: Disclosed is an adjustable attaching lens device comprising a lens holding member including a flexible confining strip and an adjustable fastener that is for adjusting a fastening position of the flexible confining strip, wherein the flexible confining strip is bent to confine a lens attaching hole with a given size and a given shape for holding an optical lens; and an attaching member, provided on the lens holding member in a manner that the attaching member is facing toward the same side of the lens attaching hole, for attaching with an attaching surface so that the lens attaching hole corresponds to an optical image grabbing element of an external device. The various kinds of detachable lenses are applied to an electric device with lens, and thus the detachable lens compatible to a specific electric device can be used for a different device.Type: GrantFiled: October 25, 2013Date of Patent: May 19, 2015Inventor: Princeton Wen-Yuan Lee
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Patent number: 9033520Abstract: A projector includes a lens adjustment mechanism that performs a predetermined adjustment operation for a projection lens, an adjustment value storage unit that stores lens adjustment values for performing the predetermined adjustment operation by linking the lens adjustment values to the type of aspect ratio of an image signal, a signal aspect ratio recognition unit that recognizes the aspect ratio of the image signal input to an input terminal as a signal aspect ratio, an adjustment value acquisition unit that acquires, from the adjustment value storage unit, the lens adjustment values corresponding to the type of signal aspect ratio recognized by the signal aspect ratio recognition unit, and an adjustment control unit that causes the lens adjustment mechanism to perform a lens adjustment operation based on the lens adjustment values acquired by the adjustment value acquisition unit.Type: GrantFiled: March 7, 2012Date of Patent: May 19, 2015Assignee: Seiko Epson CorporationInventor: Shunji Maruyama
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Patent number: 9019619Abstract: A zoom lens includes a front group, an aperture stop, and a rear group. The front group includes a lens unit configured not to move during zooming and a front variable power lens unit including one or more lens units and configured not to move during zooming. The rear group includes, in order from a magnification conjugate side to a reduction conjugate side, a rear variable power lens unit having one or more lens units and configured to move during zooming, and a lens unit configured not to move during zooming. The aperture stop moves during zooming, and the front group has an auxiliary stop which moves during zooming. A length from a focal point position of the front group to the aperture stop, and imaging magnifications of the rear group, at a wide angle end and a telephoto end, are set to adequate values.Type: GrantFiled: November 18, 2013Date of Patent: April 28, 2015Assignee: Canon Kabushiki KaishaInventor: Makoto Takahashi
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Publication number: 20150109589Abstract: A projection system includes a projection module, an infrared monitoring module, and a focusing device. Lights of a projection light source (100) pass through a light splitting element (500) and a first lens group (201), and then emit out; infrared lights from outside pass through the first lens group (201) and the light splitting element (500) to an infrared monitoring module (300). Only the first lens group (201) can move back and forth and a focusing device is provided for driving the first lens group (201) to move back and forth. Optical characteristics of a projection objective (200) and a monitoring objective ensure that, during moving of the first lens group (201) driven by the focusing device, the projection objective (200) focuses clearly, and an infrared monitoring image received by an induction chip (301) meets monitoring requirements synchronously.Type: ApplicationFiled: December 26, 2012Publication date: April 23, 2015Applicant: PIQS TECHNOLOGY (SHENZHEN) LIMITEDInventors: Qinglin Na, Yan Huang, Haohuang Mai, Haixiang Wang
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Patent number: 9010944Abstract: A projection type image display apparatus (1) comprises a focus correction system (30). The system includes a temperature detection mechanism (16) for measuring temperature in the vicinity of a projection lens group (13), a correction amount calculation unit (18) for calculating a correction amount for correcting the focus shift caused by a temperature change, and a driving signal generation unit (19) for generating, based on the correction amount, a driving signal for driving a focus adjustment mechanism (15). If the user performs a focus adjustment using a focus operation input unit (23), a focus operation determination unit (21) determines that a focus adjustment has occurred independently of the focus correction system and changes a correction condition stored in a memory (20).Type: GrantFiled: March 17, 2009Date of Patent: April 21, 2015Assignee: Konica Minolta Opto, Inc.Inventors: Norio Maeda, Kohei Wataru, Kazuhiko Inoue, Masahiro Terada, Takashi Ohta, Yasumasa Sawai
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Patent number: 8994922Abstract: Provided is a barrel support device for supporting a lens barrel. The barrel support device may include a guide frame configured to laterally support the lens barrel and tilt with the lens barrel, a rotation guide on a first end of the guide frame, the rotation guide being ring shaped and configured attach the lens barrel to the guide frame, and a ring-shaped tilting frame configured to support a second end of the guide frame and tilt the guide frame, wherein the guide frame, the rotation guide, and the tilting frame are configured to allow the lens barrel to pass therethrough.Type: GrantFiled: October 15, 2010Date of Patent: March 31, 2015Assignee: Samsung Electronics Co., Ltd.Inventors: Sang Hyun Park, Sang Joon Hong, Sang Don Jang, Oui Serg Kim, Dong Seok Baek
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Patent number: 8985787Abstract: A projector includes an illumination device including a light source that outputs light from a light emitting part, a first lens array having plural first small lenses, a second lens array having plural second small lenses corresponding to the plural first small lenses, and a superimposing lens that superimposes lights from the second lens array, a light modulation device that modulates light from the illumination device in response to image information, and a projection optical system that projects the light from the light modulation device on a projection target, wherein radii of curvature of the first small lenses are set with respect to each first small lens.Type: GrantFiled: December 27, 2011Date of Patent: March 24, 2015Assignee: Seiko Epson CorporationInventor: Katsumi Tanaka
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Patent number: 8985788Abstract: A support stand made of sheet metal is cooperated with an optical module and a reflective module. The support stand includes a base and a back frame. The optical module is disposed on the base. To enhance its structural rigidity, the base substantially has a “” or inverted “U” shape as viewed from an optical axis. The back frame is connected with the base, and the reflective module is disposed on the back frame. An optical apparatus with the above support stand is also disclosed.Type: GrantFiled: September 14, 2012Date of Patent: March 24, 2015Assignee: Delta Electronics, Inc.Inventors: Zhong-Ren Zhu, Mao-Shan Hsu
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Patent number: 8985778Abstract: An image projection system whereby a position of a pointer on a projected image can be easily controlled from a location separated from the main control means. The system comprises a projector, a computer for controlling the projector to display a pointer on a projected image in accordance with an operational signal from a terminal, and a remote controller for the projector. The remote controller comprises a pointing device and a transmitter for transmitting an operation signal as an infrared ray operational signal. The projector comprises a receiver which is an infrared (IR) optical receiver having directivity, and receives the infrared ray operational signal.Type: GrantFiled: April 23, 2014Date of Patent: March 24, 2015Assignee: Seiko Epson CorporationInventor: Kiyoshi Miyashita
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Patent number: 8979283Abstract: An optical apparatus includes a support stand, an optical module, a reflective module, at least a first adjusting unit and at least a second adjusting unit. The support stand has a base and a back frame. The back frame is connected with the base and formed an inclination angle with the base. The optical module is disposed on the base. The reflective module is disposed on the back frame. The first adjusting unit is connected with the back frame and the base. The first adjusting unit moves the back frame so as to adjust the inclination angle. The second adjusting unit is disposed at the back frame and contacts against the reflective module. The second adjusting unit moves the reflective module so as to adjust a swinging angle of the reflective module.Type: GrantFiled: September 14, 2012Date of Patent: March 17, 2015Assignee: Delta Electronics, Inc.Inventors: Zhong-Ren Zhu, Mao-Shan Hsu
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Publication number: 20150070664Abstract: A projection apparatus is capable of changing a lens, and includes a lens shift unit that moves a mounted lens to a reference position in accordance with the mounted lens when the lens is changed.Type: ApplicationFiled: November 12, 2014Publication date: March 12, 2015Inventor: Atsushi KANO
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Publication number: 20150070595Abstract: An LED projection night light for night time or dark area use includes a plug-in wall outlet night light or direct current operated night light with projection features to project an image, message, data, logo, or time on a ceiling, walls, floor, or other desired surface. The LED night light incorporates optics means such as an optics-lens, slides, openings, or cut-outs, and/or a transparent material piece, translucent material piece, telescope assembly, housing-member, slide-film, slide-disc, elastic-member, tilt-means, rotating-means, adjust-means, roller-means, mechanical-means, extend-means, convex lens, and/or concave lens designed to make the desired image, message, data, logo, or time project to the ceiling, walls, floor, or other desired surface to be seen by a viewer. The LED light has an interchangeable power source arrangement, permitting the night light to be selectively powered by either an AC powered sealed-unit or a DC powered battery-pack.Type: ApplicationFiled: May 12, 2014Publication date: March 12, 2015Inventor: Tseng-Lu Chien
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Patent number: 8967812Abstract: A projection optical system substantially consists of a first optical system composed of a plurality of lenses and a second optical system composed of one reflection mirror having a convex aspherical surface arranged in this order from the reduction side and is configured, when an air space between the first optical system and the second optical system is taken as T12 and a displacement in a direction of the optical axial from a position of maximum effective height on the magnification side lens surface of the lens disposed on the most magnification side in the first optical system to the vertex of the lens surface is taken as Zf, to satisfy a conditional expression (1): 0.1<Zf/T12<1.0, in which an image formed on a conjugate plane on the reduction side is magnified and projected onto a conjugate plane on the magnification side.Type: GrantFiled: September 25, 2013Date of Patent: March 3, 2015Assignee: FUJIFILM CorporationInventor: Masaru Amano
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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: 8950874Abstract: A projection optical system for use in an image display apparatus having an illumination optical system applying light from a light source, and an image display device receiving the light from the illumination optical system to form a projection image includes a projector lens composed of plural lenses, a first mirror, and a second mirror formed of a concave mirror. The projection optical system is configured to project the projection image onto a projection surface. A projection luminous flux passing through the projector lens to be incident on the first mirror is a luminous flux exhibiting divergence. The projection luminous flux reflected off the second mirror after having reflected off the first mirror is converged once, and the once converged projection luminous flux is projected onto the projection surface. A lens surface of a lens located closest to the first mirror among the lenses of the projector lens is convex.Type: GrantFiled: September 12, 2012Date of Patent: February 10, 2015Assignee: Ricoh Company, Ltd.Inventor: Hibiki Tatsuno
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Patent number: 8950875Abstract: A projector includes a lens adjustment mechanism that performs a predetermined adjustment operation for a projection lens, an input selection unit that selects one input terminal from plurality of input terminals provided in the input terminal unit according to a predetermined operation, an adjustment value storage unit that stores lens adjustment values by linking to the type of the input terminal, an adjustment value acquisition unit that acquires, from the adjustment value storage unit, the lens adjustment values corresponding to the type of the selected input terminal when the predetermined operation is received, and an adjustment control unit that causes the lens adjustment mechanism to perform a lens adjustment operation based on the acquired lens adjustment values.Type: GrantFiled: March 8, 2012Date of Patent: February 10, 2015Assignee: Seiko Epson CorporationInventor: Shunji Maruyama
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Publication number: 20150015854Abstract: An auto-focusing projection system includes a projection module, an infrared monitoring module (300), an infrared source (400) provided on the projection module, and a focusing device for driving the first lens group (201) moving forward and backward. An IR light spot emitted from the infrared source falls within the monitoring scope of the infrared monitoring module, preferably inside the projected picture of the projection module or on the edge thereof, and after reflected back, it also can travel through the first lens group, and the splitting element in turn, and then be transmitted to the infrared monitoring module. Analyzing the IR light spot picture emitted from the infrared source which is collected by the infrared monitoring module, a control signal can be sent to a focusing motor to adjust the first lens group to an appropriate position, so as to realize auto-focusing.Type: ApplicationFiled: December 26, 2012Publication date: January 15, 2015Inventors: Qinglin Na, Yan Huang, Haohuang Mai, Haixiang Wang
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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: 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: 8905557Abstract: A projection apparatus is capable of changing a lens, and includes a lens shift unit that moves a mounted lens to a reference position in accordance with the mounted lens when the lens is changed.Type: GrantFiled: February 27, 2012Date of Patent: December 9, 2014Assignee: Canon Kabushiki KaishaInventor: Atsushi Kano
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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: 8894220Abstract: In the case of performing focus adjustment, image quality control is performed to set to relatively a high-contrast sense color mode of plural color modes that enable to set according to an environment at the time of projection.Type: GrantFiled: October 26, 2011Date of Patent: November 25, 2014Assignee: Seiko Epson CorporationInventor: Shinichi Tsukagoshi
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Publication number: 20140333907Abstract: A projection lens includes lens frames each of which holds a lens group and has cam pins, a guide barrel which has linear grooves through which the cam pins are inserted and into which the lens frames are sequentially fit and inserted, and a cam barrel into which the guide barrel is fit and inserted, which has cam grooves with which the cam pins protruding through the linear grooves engage, and which is rotated relative to the guide barrel to guide the cam pins along the linear grooves and the cam grooves and hence move the lens frames along the linear grooves. A protrusion is provided on the inner surface of the guide barrel, and the protrusion comes into contact with one of the lens frames so that the cam pins of the lens frame are positioned at the ends of the corresponding cam grooves.Type: ApplicationFiled: April 25, 2014Publication date: November 13, 2014Applicant: Seiko Epson CorporationInventor: Naoto Takehana
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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: 8879007Abstract: A projector includes: a display device which modulates illumination light; a projection lens which projects modulation light produced by the display device; and a holding device which has a holder member supporting the display device, a frame member supporting the projection lens and functions as a base capable of supporting the holder member, and an expanding and contracting member disposed between the frame member and the display device, wherein a temperature coefficient for the expansion and contraction of the expanding and contracting member in the direction of the optical axis of the projection lens corresponds to a temperature coefficient for the increase and decrease of the focal distance of the projection lens.Type: GrantFiled: July 22, 2013Date of Patent: November 4, 2014Assignee: Seiko Epson CorporationInventors: Daisuke Hayashi, Kunihisa Nakamura, Takeshi Utagawa
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Patent number: 8870390Abstract: A low Z-height projection system includes a display panel for displaying a grating pattern that has gratings extended in a first direction. A projection lens system is also included and projects the grating pattern displayed on the display panel onto a surface. The projection lens system is a truncated circular lens system that has a first lens width in the first direction and a second lens width in a second direction. The first lens width is less than the second lens width. The first and second directions are orthogonal.Type: GrantFiled: September 11, 2012Date of Patent: October 28, 2014Assignee: OmniVision Technologies, Inc.Inventor: Iain Davidson
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Publication number: 20140313492Abstract: A projection image display apparatus which performs an operation for attaching and detaching a projection lens by one action with a simple mechanism is provided. The projection image display apparatus includes an optical engine which irradiates a display element with light emitted from a light source to form an image, a projection lens which enlarges and projects the image emitted from the optical engine, a lens shift mechanism for adjusting a position of an image to be projected onto a screen, a lens attachment unit for attaching the projection lens to the lens shift mechanism, and a first plate for attaching the projection lens to the lens attachment unit to achieve a locked state, and the attachment of the projection lens to the lens attachment unit and the achievement of the locked state are performed by only rotation of the first plate in a first direction.Type: ApplicationFiled: November 11, 2011Publication date: October 23, 2014Inventors: Nobuki Matsui, Shinro Inui, Chohei Ono, Kazuomi Kaneko, Masayuki Fukui
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Patent number: 8867152Abstract: The optical barrel includes a first barrel member having a guiding portion to guide an optical element holding member in an optical axis direction, and a second barrel member disposed around the first barrel member and being relatively rotatable with the first barrel member. The second barrel member is provided with a cam portion to move the holding member, and with a bayonet engagement portion in an outer circumferential portion of the second barrel member. The first barrel member is provided with a flange portion, and with overhang portions and bayonet protrusion portions in plural areas of the flange portion. Each overhang portion extends along an outer circumferential surface of the second barrel member in the optical axis direction. Each bayonet protrusion portion extends inward in the radial direction and engaging with the bayonet engagement portion.Type: GrantFiled: December 19, 2012Date of Patent: October 21, 2014Assignee: Canon Kabushiki KaishaInventors: Harushige Yamamoto, Kousuke Kiyamura, Mitsuhiro Izumi