Patents by Inventor Takayuki Sasaoka
Takayuki Sasaoka 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: 20240114122Abstract: The disclosure is to optimize and display a clear stereoscopic image while securing a depth. A stereoscopic display apparatus is provided. The stereoscopic display apparatus includes a display, a display driver configured to display an elemental image of a stereoscopic image on the display, a light source controller including a first lens array positioned on a rear surface of the display and including a plurality of first cylinder lenses arranged at a preset pitch, a second lens array positioned on a rear surface of the first lens array and including a plurality of second cylinder lenses arranged at a pitch that is wider than the pitch of the first cylinder lenses, a plurality of light sources positioned on rear surfaces of the second cylinder lenses, and a diffusion sheet positioned between the display and the first lens array and positioned at a position including a focal point of each first cylinder lens, and a light source driver configured to drive a line light source illuminating the elemental image.Type: ApplicationFiled: October 26, 2023Publication date: April 4, 2024Inventors: Yoshiharu MOMONOI, Keisuke OZAWA, Takayuki SASAOKA
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Patent number: 11620937Abstract: Provided are a light source device, a light emission control method, and a computer program for mitigating flickers. The light source device includes a plurality of light sources, and a controller configured to individually control the plurality of light sources to emit light. The controller controls one or more of the plurality of light sources to emit light at random in a time domain or controls such that light emission timings of the plurality of light sources do not overlap.Type: GrantFiled: July 12, 2021Date of Patent: April 4, 2023Assignee: SAMSUNG ELECTRONICS CO.. LTD.Inventors: Takayuki Sasaoka, Osamu Konuma, Katsutoshi Sasaki, Taehong Min
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Patent number: 11314073Abstract: A lighting device includes a light source generating a beam of illumination light, a ring-shaped aperture shielding a central portion of the illumination light and transforming the beam of illumination light into ring-shaped illumination light, and an object lens focusing the ring-shaped illumination light such that a specimen can be illuminated with the ring-shaped illumination light. An inspection apparatus including the light device also has a beam splitter and an image sensor picking up light reflected and/or diffracted from the specimen through the beam splitter. Because a central portion of the illumination light is shielded, lens flare of light transmitted by the beam splitter and the object lens is prevented thereby preventing speckles in the image produced by the image sensor.Type: GrantFiled: August 21, 2019Date of Patent: April 26, 2022Assignee: Samsung Electronics Co., Ltd.Inventors: Yasuhiro Hidaka, Masato Kajinami, Takayuki Sasaoka
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Publication number: 20220020318Abstract: Provided are a light source device, a light emission control method, and a computer program for mitigating flickers. The light source device includes a plurality of light sources, and a controller configured to individually control the plurality of light sources to emit light. The controller controls one or more of the plurality of light sources to emit light at random in a time domain or controls such that light emission timings of the plurality of light sources do not overlap.Type: ApplicationFiled: July 12, 2021Publication date: January 20, 2022Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Takayuki SASAOKA, Osamu Konuma, Katsutoshi Sasaki, Taehong Min
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Patent number: 11137597Abstract: An image display apparatus including a first light source, a spherical lens configured to receive light output from the first light source, an aspherical lens configured to receive light output from the spherical lens, a first free curved mirror configured to receive light output from the aspherical lens is incident, a second free curved mirror configured to receive light output from the first free curved mirror, a third free curved mirror configured to receive light output from the second free curved mirror, and an image display panel configured to receive light output from the third free curved mirror and configured to display image information, wherein a light path of the light output from the first free curved mirror, a light path of the light output from the second free curved mirror, and a light path of the light output from the third free curved mirror intersect each other.Type: GrantFiled: February 21, 2020Date of Patent: October 5, 2021Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Osamu Konuma, Takayuki Sasaoka, Katsutoshi Sasaki
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Publication number: 20200310116Abstract: An image display apparatus including a first light source, a spherical lens configured to receive light output from the first light source, an aspherical lens configured to receive light output from the spherical lens, a first free curved mirror configured to receive light output from the aspherical lens is incident, a second free curved mirror configured to receive light output from the first free curved mirror, a third free curved mirror configured to receive light output from the second free curved mirror, and an image display panel configured to receive light output from the third free curved mirror and configured to display image information, wherein a light path of the light output from the first free curved mirror, a light path of the light output from the second free curved mirror, and a light path of the light output from the third free curved mirror intersect each other.Type: ApplicationFiled: February 21, 2020Publication date: October 1, 2020Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Osamu Konuma, Takayuki Sasaoka, Katsutoshi Sasaki
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Publication number: 20200132977Abstract: A lighting device includes a light source generating a beam of illumination light, a ring-shaped aperture shielding a central portion of the illumination light and transforming the beam of illumination light into ring-shaped illumination light, and an object lens focusing the ring-shaped illumination light such that a specimen can be illuminated with the ring-shaped illumination light. An inspection apparatus including the light device also has a beam splitter and an image sensor picking up light reflected and/or diffracted from the specimen through the beam splitter. Because a central portion of the illumination light is shielded, lens flare of light transmitted by the beam splitter and the object lens is prevented thereby preventing speckles in the image produced by the image sensor.Type: ApplicationFiled: August 21, 2019Publication date: April 30, 2020Inventors: YASUHIRO HIDAKA, MASATO KAJINAMI, TAKAYUKI SASAOKA
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Patent number: 10371924Abstract: Provided is a photographing apparatus having both a phase difference auto-focusing function and a contrast auto-focusing function. Provided is an auxiliary light projector capable of projecting auxiliary light of a pattern suitable for the photographing apparatus. An auxiliary light projector and a photographing apparatus including the auxiliary light projector according to an embodiment of the present disclosure may reduce an auto-focusing time with respect to an object and improve reliability of an auto-focusing function.Type: GrantFiled: August 10, 2015Date of Patent: August 6, 2019Assignee: Samsung Electronics Co., Ltd.Inventor: Takayuki Sasaoka
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Publication number: 20170235096Abstract: Provided is a photographing apparatus having both a phase difference auto-focusing function and a contrast auto-focusing function. Provided is an auxiliary light projector capable of projecting auxiliary light of a pattern suitable for the photographing apparatus. An auxiliary light projector and a photographing apparatus including the auxiliary light projector according to an embodiment of the present disclosure may reduce an auto-focusing time with respect to an object and improve reliability of an auto-focusing function.Type: ApplicationFiled: August 10, 2015Publication date: August 17, 2017Inventor: Takayuki SASAOKA
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Publication number: 20040085867Abstract: Disclosed herein is an optical pickup unit and information recording and reproducing apparatus. The present invention provides an optical pickup unit which can store and maintain the characteristics of the optical pickup unit itself, and further provides an information recording and reproducing apparatus, which enables mass production without increasing costs even though optical pickup units having different characteristics are assembled, and enables maintenance to be easily performed without increasing costs. The optical pickup unit (10) of the present invention has an LD (11), an object lens (13) for focusing light emitted from the LD (11) on a disk, actuators (15 and 16) for driving the object lens (13) to vary the position of the object lens (13) relative to the disk, and a PD (14) for detecting light reflected from the disk. In addition, the optical pickup unit (10) has an EEPROM (18) for storing optical pickup information of the optical pickup unit (10) therein.Type: ApplicationFiled: October 28, 2003Publication date: May 6, 2004Applicant: Samsung Electro-Mechanics Co., Ltd.Inventors: Takayuki Sasaoka, Noriyoshi Takeya
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Patent number: 6009059Abstract: An output from a left half light-receiving portion C1, C4 of a main-beam photodiode 5 of an optical pickup and an output from a right half light-receiving portion C2, C3 of a main-beam photodiode 5 of an optical pickup are normalized, and the difference between the normalized outputs is calculated.(C1+C4)/.alpha.*(C1+C4)-(C2+C3)/.alpha.*(C2+C3)in which .alpha. is a constant.Accordingly, even in the case where the objective lens 1 is shifted to the inside or outside of a track, a wobble signal can be extracted securely because the DC offset components of the difference signals in the on-track main laser beam MB are cancelled out.Type: GrantFiled: August 26, 1997Date of Patent: December 28, 1999Assignee: Mitsumi Electric Co., Ltd.Inventor: Takayuki Sasaoka