Patents by Inventor Kenji Nagashima
Kenji Nagashima has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20160212316Abstract: An imaging apparatus includes a plurality of imaging sections that images an imaging region, a parallax information generator that generates parallax information based on images by the imaging sections, and an exposure amount controller that determines an exposure amount for use in the imaging sections in a subsequent imaging operation to increase a number of parallax values contained in a parallax value group of an image portion showing a target in the imaging region, wherein the exposure amount controller executes parallax information obtaining control that obtains the parallax information corresponding to a plurality of exposure amounts generated based on the images with the exposure amounts, and executes exposure amount identifying control that identifies the exposure amount corresponding to the parallax information having a maximum number of parallax values in the obtained parallax information to determine the exposure amount for use in the imaging sections based on the identified exposure amount.Type: ApplicationFiled: January 8, 2016Publication date: July 21, 2016Inventor: Kenji NAGASHIMA
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Patent number: 9354501Abstract: This projector includes a laser light generation portion, a projection portion scanning laser light, and a projection screen. The projection screen includes a lens member including a plurality of lens portions splitting the laser light and a diffusion member arranged to be opposed to the lens member, having an incident surface and a diffusion portion. The diffusion portion of the diffusion member is arranged at a position apart by a distance larger than the focal length of the lens member along an optical axis with respect to the optical principal surface of the lens member.Type: GrantFiled: February 9, 2015Date of Patent: May 31, 2016Assignee: Funai Electric Co., Ltd.Inventors: Hiroki Matsubara, Kenji Nagashima
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Patent number: 9335617Abstract: This projector is configured to allocate a first projection laser beam corresponding to a first image signal and a second projection laser beam corresponding to a second image signal different from the first image signal to a first area and a second area not overlapping with the first area, respectively, to project the first projection laser beam and the second projection laser beam.Type: GrantFiled: November 2, 2011Date of Patent: May 10, 2016Assignee: Funai Electric Co., Ltd.Inventors: Hirono Tsubota, Atsuya Hirano, Kenji Nagashima
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Publication number: 20160073071Abstract: An image projection apparatus includes laser light sources that each emit laser light; a beam combiner combining the laser lights; a beam deflector periodically changing a traveling direction of the combined laser lights and directing the laser lights to a screen; and a controller controlling a drive current supplied to the laser light sources based on a relationship between the drive current and a total light intensity outputted from the laser light sources, in which the total light intensity comprises three ranges, the controller supplies the drive current to the laser light sources when the laser lights are emitted in the total light intensity included in either the first or the third range, and the controller supplies the drive current to at least one or some of the laser light sources when the combined laser lights are emitted in the total light intensity included in the second range.Type: ApplicationFiled: September 4, 2015Publication date: March 10, 2016Applicant: FUNAI ELECTRIC CO., LTD.Inventors: Kenji Nagashima, Toyoshi Nogami, Tatsuya Ito
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Publication number: 20150350616Abstract: This display includes a control portion controlling a laser beam generation portion to output a first laser beam including a region of relaxation oscillation to a partial first image forming element included in a plurality of image forming elements and to output a second laser beam including no region of relaxation oscillation to a second image forming element, other than the first image forming element, included in the plurality of image forming elements.Type: ApplicationFiled: August 10, 2015Publication date: December 3, 2015Applicant: FUNAI ELECTRIC CO., LTD.Inventors: Ken Nishioka, Atsuhiko Chikaoka, Kenji Nagashima, Takatoshi Nishimura, Yasunori Higashiyama
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Patent number: 9158429Abstract: Disclosed is a rotary input device, including: a rotary operation device; a rotation detecting section; a rotation driving section; a display control section to scroll an image under display by rotation of the rotary operation device; a judging section to judge whether the detected rotation angle reaches a critical angle corresponding to an end part of a range of the displayed image or not; and a rotation controlling section to reversely rotate the rotary operation device to an initial position or a reference position when it is judged that the rotation angle reaches the critical angle and the rotary operation is released, wherein the display control section displays the image displayed on the display section at a display position corresponding to the initial position or the reference position when the rotary operation device is reversely rotated to the initial position or the reference position.Type: GrantFiled: April 21, 2010Date of Patent: October 13, 2015Assignee: Fukoku Co., Ltd.Inventors: Kenji Nagashima, Kazuhiro Takahashi, Takahiko Suzuki, Takeshi Kodaira
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Patent number: 9104092Abstract: This display includes a control portion controlling a laser beam generation portion to output a first laser beam including a region of relaxation oscillation to a partial first image forming element included in a plurality of image forming elements and to output a second laser beam including no region of relaxation oscillation to a second image forming element, other than the first image forming element, included in the plurality of image forming elements.Type: GrantFiled: November 30, 2011Date of Patent: August 11, 2015Assignee: Funai Electric Co., Ltd.Inventors: Ken Nishioka, Atsuhiko Chikaoka, Kenji Nagashima, Takatoshi Nishimura, Yasunori Higashiyama
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Patent number: 9083893Abstract: Provided is a projector capable of suppressing deterioration of a portion of a projection portion irradiated with a laser beam while improving brightness. This projector is formed to deviate optical axes of laser beams emitted from a plurality of laser beam generation portions respectively from each other so that the laser beams emitted from the plurality of laser beam generation portions respectively do not concentrate on one point of a projection portion.Type: GrantFiled: July 7, 2011Date of Patent: July 14, 2015Assignee: Funai Electric Co., Ltd.Inventor: Kenji Nagashima
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Patent number: 9075246Abstract: Techniques capable of effectively reducing local speckle noise caused by scanning with laser light involving a variation in scanning speed and improving the overall quality of an image are provided. In some examples, a laser light source emits laser light with an output level corresponding to a display grayscale of a pixel according to a predetermined waveform pattern within a pixel display period which is set to increase as a scanning speed is reduced. The waveform pattern is set such that a unique relaxation oscillation of the laser light source increases as the scanning speed is reduced. A scanning mirror reflects the laser light emitted from the laser light source in a predetermined scanning order according to its deflection angle so as to be projected onto a projection surface.Type: GrantFiled: July 11, 2011Date of Patent: July 7, 2015Assignee: Funai Electric Co., Ltd.Inventors: Atsuhiko Chikaoka, Kenji Nagashima
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Patent number: 9069184Abstract: Disclosed is a display device capable of inhibiting a projected picture from occurrence of brightness unevenness while reducing speckle noise. The display device (100) includes a control portion (15) continuously supplying current to a laser beam generation portion (12, 13, 14) nonstop for a period longer than a first period thereby controlling the laser beam generation portion to output the laser beam and controlling the laser beam generation portion to stop the output of the laser beam at least once in a second period scanning one image forming element (1, 2).Type: GrantFiled: March 7, 2011Date of Patent: June 30, 2015Assignee: Funai Electric Co., Ltd.Inventors: Ken Nishioka, Kenji Nagashima, Atsuya Hirano, Atsuhiko Chikaoka
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Publication number: 20150153640Abstract: This projector includes a laser light generation portion, a projection portion scanning laser light, and a projection screen. The projection screen includes a lens member including a plurality of lens portions splitting the laser light and a diffusion member arranged to be opposed to the lens member, having an incident surface and a diffusion portion. The diffusion portion of the diffusion member is arranged at a position apart by a distance larger than the focal length of the lens member along an optical axis with respect to the optical principal surface of the lens member.Type: ApplicationFiled: February 9, 2015Publication date: June 4, 2015Applicant: Funai Electric Co., Ltd.Inventors: Hiroki Matsubara, Kenji Nagashima
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Patent number: 8988774Abstract: This projector includes a laser light generation portion, a projection portion scanning laser light, and a projection screen. The projection screen includes a lens member including a plurality of lens portions splitting the laser light and a diffusion member arranged to be opposed to the lens member, having an incident surface and a diffusion portion. The diffusion portion of the diffusion member is arranged at a position apart by a distance larger than the focal length of the lens member along an optical axis with respect to the optical principal surface of the lens member.Type: GrantFiled: November 8, 2013Date of Patent: March 24, 2015Assignee: Funai Electric Co., Ltd.Inventors: Hiroki Matsubara, Kenji Nagashima
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Publication number: 20140293236Abstract: A projector includes a light generator that emits a first light and a second light of mutually differing color components, a light position detector disposed to receive light incident in a direction outside of the projection surface and that detects a position of the incident light, a light scanner that projects the image onto the projection surface by scanning the first light and the second light with a first scanning angle, and that directs the first light and the second light to the light position detector by scanning the first light and the second light with a second scanning angle that is larger than the first scanning angle, and an adjustor that adjusts an emission timing of the first light and an emission timing of the second light so as to suppress relative misalignment between the first light and the second light on the projection surface.Type: ApplicationFiled: March 5, 2014Publication date: October 2, 2014Applicant: FUNAI ELECTRIC CO., LTD.Inventors: Kenji Nagashima, Akihiro Azuma
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Patent number: 8797362Abstract: Disclosed is a rotary input device including: a rotary operation device; a rotation driving section; a detection section; a force sense presenting section to present a force sense by a combination of at least two of applying the rotary force in a clockwise direction, applying the rotary force in a counterclockwise direction, and stopping applying the rotary force; a display control section; a magnification ratio change instructing section; and a scroll instructing section, wherein the magnification ratio change instructing section instructs enlargement when rotating in one side, and instructs reduction when rotating in the other side; the scroll instructing section instructs on the basis of the depressed position; and the force sense presenting section changes a way of presenting the force sense in order that the operator can perceive a display state pertaining to a display position or a display magnification ratio of the image under display distinguishably.Type: GrantFiled: April 21, 2010Date of Patent: August 5, 2014Assignees: Pro-Tech Design Corporation, Fukoku Co., Ltd.Inventors: Kenji Nagashima, Hirono Tsubota, Takahiko Suzuki, Nobuyuki Sako, Takeshi Kodaira
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Publication number: 20140176815Abstract: A video projection device has a video output unit for outputting video by emitting light, and a reflective mirror for reflecting the light emitted from the video output unit to project the video on a projection target. The reflective mirror is driven to rotate about two axes so as to move the reflected light in the horizontal and vertical directions.Type: ApplicationFiled: December 12, 2013Publication date: June 26, 2014Applicant: Funai Electric Co., Ltd.Inventors: Kenji Nagashima, Atsushi Kitamoto
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Publication number: 20140133018Abstract: This projector includes a laser light generation portion, a projection portion scanning laser light, and a projection screen. The projection screen includes a lens member including a plurality of lens portions splitting the laser light and a diffusion member arranged to be opposed to the lens member, having an incident surface and a diffusion portion. The diffusion portion of the diffusion member is arranged at a position apart by a distance larger than the focal length of the lens member along an optical axis with respect to the optical principal surface of the lens member.Type: ApplicationFiled: November 8, 2013Publication date: May 15, 2014Applicant: Funai Electric Co., Ltd.Inventors: Hiroki Matsubara, Kenji Nagashima
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Publication number: 20130222771Abstract: This projector is configured to allocate a first projection laser beam corresponding to a first image signal and a second projection laser beam corresponding to a second image signal different from the first image signal to a first area and a second area not overlapping with the first area, respectively, to project the first projection laser beam and the second projection laser beam.Type: ApplicationFiled: November 2, 2011Publication date: August 29, 2013Applicant: FUNAI ELECTRIC CO., LTD.Inventors: Hirono Tsubota, Atsuya Hirano, Kenji Nagashima
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Publication number: 20130155336Abstract: Provided is a projector capable of suppressing deterioration of a portion of a projection portion irradiated with a laser beam while improving brightness. This projector is formed to deviate optical axes of laser beams emitted from a plurality of laser beam generation portions respectively from each other so that the laser beams emitted from the plurality of laser beam generation portions respectively do not concentrate on one point of a projection portion.Type: ApplicationFiled: July 7, 2011Publication date: June 20, 2013Applicant: FUNAI ELECTRIC CO., LTD.Inventor: Kenji Nagashima
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Publication number: 20130127717Abstract: A projector capable of detecting the position of a detection object while suppressing complication of the structure is provided. This projector is so configured that the optical axes of a laser beam of visible light emitted from a first laser beam generation portion and a laser beam of invisible light emitted from a second laser beam generation portion substantially coincide with each other.Type: ApplicationFiled: July 14, 2011Publication date: May 23, 2013Applicant: FUNAI ELECTRIC CO., LTD.Inventor: Kenji Nagashima
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Publication number: 20130127716Abstract: A projector capable of detecting the coordinates of a detection object at a height position away from a projection area to some extent is provided. This projector (100) includes a laser beam generation portion (61a, 62a, 63a, 64a) emitting a laser beam, a projection portion (69a, 69b) projecting an image on an arbitrary projection area, and a height detection portion (10a, 10b, 12) detecting the height of the detection object from the projection area with light reflected by the detection object.Type: ApplicationFiled: July 14, 2011Publication date: May 23, 2013Applicant: FUNAI ELECTRIC CO., LTD.Inventor: Kenji Nagashima