Patents Examined by Jerry Brooks
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Patent number: 8662678Abstract: A solid-state light source device, enabling to build up with using solid-state elements, and having the structure suitable to be applied as a light source for a projection-type display apparatus, comprises a solid-state light source unit 10 for emitting excitation light therefrom, a reflection mirror (or reflector) 130 made of a parabolic surface, for condensing the excitation light from the solid-state light source to be point-like, and a disc-like (or wheel) member 140, repeating reflection/scattering or transmission/scattering of the excitation light and conversion of the excitation light, alternately, in vicinity of a focus point of the excitation light, which is condensed to be point-like by the reflection mirror (or reflector), wherein the excitation light (B-color) reflected/or scattered by that disc-like (or wheel) member and fluorescence light (Y-color), wavelength of which is converted, is taken on a same optical path, by means of the reflection mirror (or reflector) 130 or a second reflection mirroType: GrantFiled: October 21, 2010Date of Patent: March 4, 2014Assignee: Hitachi Consumer Electronics Co., Ltd.Inventors: Koji Hirata, Hidehiro Ikeda, Nobuyuki Kimura
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Patent number: 8662672Abstract: The invention relates to a lighting device (1), an array of such lighting devices and an optical projection device comprising such lighting device. The lighting device, comprises at least one laser source (4) for generating laser radiation, wherein the laser source is optically coupled to an optical element (7, 8, 9) comprising at least one luminescent material, suitable for emitting luminescent radiation upon laser excitation by the laser radiation, wherein the optical element is provided with at least one reflector for directing the radiation from the luminescent dot through an emission window of the optical element. The lighting device is particularly useful in a projector and other lighting applications.Type: GrantFiled: October 3, 2008Date of Patent: March 4, 2014Assignee: Koninklijke Philips N.V.Inventors: Rifat Ata Mustafa Hikmet, Abraham Rudolf Balkenende
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Patent number: 8651668Abstract: A projector includes: a liquid-cooling device configured to cool down a cooling target using cooling liquid, a liquid storage unit including a storage unit body that temporarily stores cooling liquid therein; and an outflow portion that connects the inside and outside of the storage unit body and allows the cooling liquid stored in the storage unit body to flow out to the outside, and the liquid storage unit is disposed in such a manner that the cooling liquid flows out of the outflow portion in a direction substantially orthogonal to a projection direction of an image from the projector and substantially parallel to a horizontal plane.Type: GrantFiled: March 24, 2010Date of Patent: February 18, 2014Assignee: Seiko Epson CorporationInventors: Yoshiyuki Yanagisawa, Yasunaga Momose
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Patent number: 8651671Abstract: A projection display device which displays an image by projecting the image on a screen includes a laser light source 1 (1a, 1b, 1c) for emitting coherent light, a display device 3 for forming an image to be displayed on a screen 5 in an area illuminated by a luminous flux from the laser light source 1, a first diffusion plate 14 for diffusing a luminous flux, and a second diffusion plate 15 for diffusing a luminous flux. The first diffusion plate 14 is provided in at least one of a conjugate position of the laser light source 1 or the vicinity of the conjugate position in the optical path of the optical system including the laser light source 1 through the screen 5. The second diffusion plate 15 is provided in at least one of a conjugate position of the display device 3 or the vicinity of the conjugate position. At least one of the first diffusion plate 14 and the second diffusion plate 15 fluctuates perpendicularly to an optical axis.Type: GrantFiled: April 12, 2010Date of Patent: February 18, 2014Assignee: Olympus CorporationInventors: Kanto Miyazaki, Kazuaki Murayama
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Patent number: 8632189Abstract: Multiple source high performance stereographic projection systems are described. One projection system described comprises a first projection channel, a first light source capable of providing light for the first projection channel, and a second light source capable of providing light for the first projection channel, wherein when the projection system is in a first presentation mode the first and second light sources are on, and wherein when the projection system is in a second presentation mode the first light source is on and the second light source is at a reduced power.Type: GrantFiled: May 5, 2005Date of Patent: January 21, 2014Assignee: IMAX CorporationInventors: Steven Charles Read, Matthew Arnold O'Dor
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Patent number: 8622551Abstract: Image projectors with increased light intensity and methods for providing brighter images are provided. Image projectors, described herein, can provide the brightness while still providing any or all of compactness, low power consumption, and long lifetime. To increase brightness, sectional mirrors are used to respectively compress the light from two light sources into a single pupil (e.g. an aperture) of an imaging device. The compression can be accomplished by regions (e.g. sections) of the mirror having different angles with respect to the pupil. Relatively little light may be lost in the compression since minima for a light intensity pattern from a light source may occur between the regions that reflect the light.Type: GrantFiled: July 20, 2012Date of Patent: January 7, 2014Assignee: Projectiondesign asInventors: Odd Ragnar Andersen, Kjell Einar Olsen, Sverre Lefsaker
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Patent number: 8585210Abstract: A projection apparatus capable of projecting an image on a screen including a light valve and a projection lens is provided. The light valve is capable of generating an image beam. The projection lens is disposed in a transmission path of the image beam and disposed between the light valve and the screen to project the image beam to form the image on the screen. The projection lens has an optical axis. The light valve deviates an offset of X % from the optical axis in a first direction, and the image deviates an offset of Y % from the optical axis in a second direction. The first direction is opposite to the second direction. The projection lens includes a lens group and an anamorphic device. The anamorphic device is disposed in a transmission path of the image beam and disposed between the lens group and the screen to make X %<Y %.Type: GrantFiled: June 1, 2010Date of Patent: November 19, 2013Assignee: Young Optics Inc.Inventors: Chu-Ming Cheng, Chih-Hsien Tsai
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Patent number: 8573782Abstract: A discharge lamp drive device for driving a discharge lamp including a first electrode and a second electrode, include: a power supply unit which supplies alternating power to the discharge lamp by inputting alternating current between the first electrode and the second electrode, wherein the power supply unit includes a power reduction control unit which reduces the alternating power from a first level to a second level lower than the first level, and a duty ratio control unit which steppedly varies duty ratio of the alternating current in a predetermined period at the time of reduction of the alternating power.Type: GrantFiled: March 11, 2010Date of Patent: November 5, 2013Assignee: Seiko Epson CorporationInventors: Shigeyasu Soma, Tetsuo Terashima
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Patent number: 8523370Abstract: An electronic apparatus includes a main body and a projection mechanism. The main body is used for providing video signals. The projection mechanism includes a built-in mini-projector that can either be stored in the electronic apparatus or extended out of the electronic apparatus for use. The mini-projector is capable of receiving video signals and projecting corresponding images when the projection mechanism is extended, and stops the projection of images when retracted.Type: GrantFiled: September 13, 2010Date of Patent: September 3, 2013Assignee: Hon Hai Precision Industry Co., Ltd.Inventors: Cho-Chuan Yang, Chun-Hsi Lin, Hung-Chang Chen, Ming-Chang Kuo
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Patent number: 8491131Abstract: A projector includes a first light source section a second light source section, a light combining section adapted to combine the first light beam and the second light beam, an adjustment device adapted to adjust a light path of the first light beam and a light path of the second light beam, respectively, in two steps, an homogenizing optical system adapted to equalize the first light beam and the second light beam processed by the light combining section, a light modulation section adapted to modulate the light beam from the homogenizing optical system in accordance with image information, and a projection optical system adapted to project an image beam processed by the light modulation section.Type: GrantFiled: December 29, 2008Date of Patent: July 23, 2013Assignee: Seiko Epson CorporationInventors: Hirotaka Yanagisawa, Kenshi Sakai
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Patent number: 8474986Abstract: A drive, primarily for an optical light forming device, which light forming device can be used in a projector, which light forming device comprises an at least partly open area for light, where at least two light forming devices cooperate in a light path for forming the light, which light forming devices are rotated around a common axis in and out of the light path. To achieve opposite synchronous movement of light forming means, the light forming devices are rotated equal in opposite directions around the common axis by a common motor. Hereby, it can be achieved that the two light forming devices are rotated synchronously, but opposite in relation to each other. The opposite synchronous movement is very important if the light fainting devices are part of a modern computer controlled projector using step motors.Type: GrantFiled: January 17, 2008Date of Patent: July 2, 2013Assignee: Martin Professional A/SInventor: Thomas Aleksander Henrik Von Preyss
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Patent number: 8465157Abstract: A projection type image display apparatus for projecting optical fluxes from a light source onto a projection plane so as to display an image, provided with a reflection mirror arranged in such a manner that the reflection mirror interrupts an optical path of the projection light in the direct projection mode when the reflection mode is set and reflects the projection light to the backside of the projection type image display apparatus, and when the reflection mode is set, the projection type image display apparatus is tilted to the backside. The projection type image display apparatus is further provided with an adjustment leg arranged in a front portion of a bottom plane of the projection type image display apparatus and extended by a predetermined leg length, and thereby the projection type image display apparatus is tilted to the backside.Type: GrantFiled: May 17, 2010Date of Patent: June 18, 2013Assignee: Hitachi Consumer Electronics Co., Ltd.Inventors: Koshu Ichikawa, Hiroyuki Inoue, Toshihiko Matsuzawa
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Patent number: 8459804Abstract: A projection display device is discussed, which includes an optical system having an improved arrangement, thereby being capable of reducing the size of the projection display device.Type: GrantFiled: November 5, 2008Date of Patent: June 11, 2013Assignee: LG Electronics Inc.Inventor: Chan Young Yoon
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Patent number: 8454172Abstract: A projector device includes: an image generation unit that generates an image; an irradiation unit that irradiates light for projecting the image generated by the image generation unit upon a projection surface; and a change unit that changes luminance of the light irradiated from the irradiation unit.Type: GrantFiled: November 25, 2005Date of Patent: June 4, 2013Assignee: Nikon CorporationInventors: Nobuhiro Fujinawa, Setsu Mitsuhashi, Hirotake Nozaki, Akira Ohmura
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Patent number: 8425044Abstract: A projection optical system receives light from a display device surface and enlarges and projects a display image thereon onto a screen surface. The projection optical system includes one or more reflective surfaces having an optical power between the display device surface and the screen surface, moves at least one optical device having an optical power to adjust focus and satisfies the following conditional formula: ?0.02<{(?1??2)?2}/{(?1+?2)?1}<0.Type: GrantFiled: February 25, 2008Date of Patent: April 23, 2013Assignee: Konica Minolta Opto, Inc.Inventors: Keiko Yamada, Soh Ohzawa, Masayuki Imaoka, Kohtaro Hayashi
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Patent number: 8414132Abstract: A multiple-lights-combining illumination device includes multiple light sources, multiple sub-rod integrators that respectively guide light from the multiple light sources, and a main rod integrator that guides light from the multiple sub-rod integrators. Each of the sub-rod integrators has reflection surfaces that are parallel to each other in a longitudinal direction, and has an entrance surface and an exit surface that are parallel or perpendicular to each other at ends thereof, the main rod integrator has reflection surfaces that are parallel to each other in a longitudinal direction, and has an entrance surface and an exit surface that are perpendicular to the reflection surfaces at ends thereof, and each reference optical axis that passes through an optical centroid portion of a light-emitting part of the light sources along a light emission direction is arranged so as to pass through substantially a center of the entrance surface of the respective sub-rod integrator.Type: GrantFiled: June 7, 2010Date of Patent: April 9, 2013Assignee: Panasonic CorporationInventors: Shigekazu Yamagishi, Hiroki Sugiyama, Hiroshi Kitano
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Patent number: 8393740Abstract: Keystone correction for a projector. An uncorrected graphic is displayed on a display unit utilizing pixels. The uncorrected graphic is projected from the display unit onto a projection screen to form an uncorrected image. An orientation of the uncorrected image relative to the projection screen is captured. The uncorrected graphic is transformed into a pre-distorted graphic for projection from the display unit onto the projection screen so as to form a corrected image with an orientation more aligned with the projection screen than the orientation of the uncorrected image and such that the pre-distorted graphic utilizes more pixels in the display unit than a second pre-distorted graphic, wherein if formed, would be formed by transforming the uncorrected graphic such that the second pre-distorted graphic forms a second corrected image with a maximum rectangular area inside the uncorrected image when projected from the display unit onto the projection screen.Type: GrantFiled: March 12, 2009Date of Patent: March 12, 2013Assignee: Canon Kabushiki KaishaInventors: Seyed Behzad Sajadi, Yasuhiro Komori, Hung Khei Huang
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Patent number: 8391571Abstract: A device for detecting a surgical tool in an image, the surgical tool going through an incision made in a patient's skin or one of his organs, the device including: means for storing shape parameters of the surgical tool. means for determining the position of the projection of the incision in the image plane and means for determining points and/or straight lines characteristic of the projection of the surgical tool on the image based on the shape parameters and on the position of the projection of the incision.Type: GrantFiled: February 16, 2007Date of Patent: March 5, 2013Assignee: Universite Joseph FourierInventors: Philippe Cinquin, Sandrine Voros
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Patent number: 8388141Abstract: An electric apparatus includes a centrifugal fan that includes an impeller in a casing, and is configured to draw air when the impeller rotates in the casing, and to have a blowoff channel of the air from the impeller in the casing, which spreads in a rotating direction of the impeller, and a first cooled part and a second cooled part that has a necessary cooling air capacity larger than that of the first cooled part, the first cooled part and the second cooled part being cooled by the air drawn by the centrifugal fan, wherein a drawing surface of the centrifugal fan has a first drawing area and a second drawing area that has a drawing speed higher than that of the first drawing area when the impeller rotates.Type: GrantFiled: January 30, 2009Date of Patent: March 5, 2013Assignee: Canon Kabushiki KaishaInventor: Junichi Tanaka
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Patent number: 8382290Abstract: A projector adapted to project an image includes: a detection section adapted to detect a motion of the projector; a determination section adapted to compare a detection result of the detection section with a predetermined criterion to perform determination on whether the projector is in a moving state or in a resting state; an adjustment section adapted to begin adjustment of at least one projection condition of the image in response to a transition of a determination result of the determination section from the moving state to the resting state; an auxiliary operation section adapted to auxiliary support the projection of the image by performing an operation with vibration; and a criterion determination section adapted to change the criterion based on a operation state of the auxiliary operation section.Type: GrantFiled: July 26, 2010Date of Patent: February 26, 2013Assignee: Seiko Epson CorporationInventor: Tadao Takahashi