Patents by Inventor Hiroyuki Shobayashi
Hiroyuki Shobayashi 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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Lens system, imaging device, and imaging system including a lens element having a free-curve surface
Patent number: 11880022Abstract: A lens system that forms an image on an imaging element, includes: first to third lens element arranged in order; a diaphragm; and a lens element on the image surface side. At least one of the first and second lens elements has a free-curved surface, and one of the first and second lens elements has free-curved surfaces on both sides. The third lens element has free-curved surfaces on both sides. The first lens element has a convex shape, toward the object side, of a surface facing the object side. The second lens element has a convex shape, toward the object side, of a surface facing the image surface side. The third lens element has a convex shape, toward the image surface side, of a surface facing the object side. The lens element on the image surface side has, at least on the object side, a free-curved surface.Type: GrantFiled: September 23, 2020Date of Patent: January 23, 2024Assignee: Panasonic Intellectual Property Management Co., Ltd.Inventors: Yoshio Matsumura, Hiroyuki Shobayashi -
Patent number: 11867966Abstract: A lens system for forming an image of light incident from an object side on an imaging element arranged on an image surface side includes: a plurality of lens elements including free-curved surface lenses; and a diaphragm arranged between the plurality of lens elements. The lens elements form a front group arranged on the object side of the diaphragm, and a rear group arranged on the image surface side of the diaphragm. A first lens element closest to the object side in the plurality of lens elements has an aspherical surface that is rotationally symmetrical. The free-curved surface lenses each has a free-curved surface that is asymmetrical with respect to a first direction and a second direction crossing with each other. A free-curved surface lens satisfying a conditional expression “D×(SV?SH)/IH>0.08” is arranged on the rear group in the plurality of lens elements.Type: GrantFiled: January 12, 2021Date of Patent: January 9, 2024Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventor: Hiroyuki Shobayashi
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Publication number: 20220221694Abstract: A lens system includes a plurality of lens elements arranged from an object side to an image plane side, and a diaphragm arranged between the plurality of lens elements. The plurality of lens elements include a plurality of freeform lenses each having a freeform surface that is asymmetrical with respect to a first direction and a second direction which cross with each other. At least one freeform lens is placed on the image plane side of the diaphragm. With a lens thickness T1 in the first direction at a maximum height of an axial ray and a lens thickness T2 in the second direction at the maximum height of the axial ray, at least one freeform lens satisfying 0.3<T1/T2<0.76 is placed on the object side of the diaphragm.Type: ApplicationFiled: March 28, 2022Publication date: July 14, 2022Inventors: Hiroyuki SHOBAYASHI, Yoshio MATSUMURA, Takuya IMAOKA, Tomoko IIYAMA
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Publication number: 20220214528Abstract: A lens system includes lens elements and a diaphragm. The lens elements include freeform lenses each having a freeform surface asymmetrical with respect to first and second directions. At least one freeform lens is placed on the image plane side of the diaphragm. The lens system satisfies a following conditional expression (1); 0.0075 < ? ? k = 1 N ? { ( SAG ? ? 1 k - SAG ? ? 2 k ) × ? ? ? nd k } Y ? ? 2 × tan ? ? ? ? ? 1 ? ( 1 ) where N: a total number of the freeform surfaces on the object side of the diaphragm, k: a number indicating a freeform surface among the N freeform surfaces, SAG1k, SAG2k: a sag amount at a position where a height of a k-th freeform surface in the first or second direction is 40% of an image height in the first direction, Y2: an image height in the second direction, ?1: a full angle of view in the first direction, and ?ndk: a difference between refractive indexes on the both sides of the k-th freeform surface.Type: ApplicationFiled: March 24, 2022Publication date: July 7, 2022Inventors: Yoshio MATSUMURA, Hiroyuki SHOBAYASHI, Takuya IMAOKA, Tomoko IIYAMA
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Patent number: 11320630Abstract: A lens system includes, in order from an object side to an image plane side: a first lens element having a negative power; a second lens element whose concave surface faces the object side; and a third lens element having a positive power, and satisfies conditions (1) and (2). 0.205<|(TL1/TA)·tan(?)|??(1) 0.120<IH/TA<0.170??(2) where TL1 is a central thickness of the first lens element, TA is a total optical length, ? is a half angle of view, and IH is an image height of the lens system.Type: GrantFiled: August 16, 2019Date of Patent: May 3, 2022Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Hiroyuki Shobayashi, Yoshio Matsumura
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Patent number: 11310461Abstract: An imaging apparatus is attached to a side of a moving body (for example, vehicle). The imaging apparatus includes an image sensor and an optical system that forms a subject image in a range of a predetermined vertical view angle and a predetermined horizontal view angle on an imaging surface. The optical system forms an image on the imaging surface so as to cause resolution in first region (R1) of the imaging surface to be higher than resolution in second region (R2) different from the first region. A position of center (G1) of first region (R1) is at least one of a position horizontally shifted from a center of the horizontal view angle and a position vertically shifted from a center of the vertical view angle.Type: GrantFiled: January 4, 2021Date of Patent: April 19, 2022Assignee: Panasonic Intellectual Property Management Co., Ltd.Inventors: Masayuki Aihara, Shigenori Yatsuri, Yoshio Matsumura, Hiroyuki Shobayashi, Katsumi Umeda, Shigeharu Kawamoto, Kazuki Miyama
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Publication number: 20210132321Abstract: A lens system for forming an image of light incident from an object side on an imaging element arranged on an image surface side includes: a plurality of lens elements including free-curved surface lenses; and a diaphragm arranged between the plurality of lens elements. The lens elements form a front group arranged on the object side of the diaphragm, and a rear group arranged on the image surface side of the diaphragm. A first lens element closest to the object side in the plurality of lens elements has an aspherical surface that is rotationally symmetrical. The free-curved surface lenses each has a free-curved surface that is asymmetrical with respect to a first direction and a second direction crossing with each other. A free-curved surface lens satisfying a conditional expression “D×(SV?SH)/IH>0.08” is arranged on the rear group in the plurality of lens elements.Type: ApplicationFiled: January 12, 2021Publication date: May 6, 2021Inventor: Hiroyuki SHOBAYASHI
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Publication number: 20210127086Abstract: An imaging apparatus is attached to a side of a moving body (for example, vehicle). The imaging apparatus includes an image sensor and an optical system that forms a subject image in a range of a predetermined vertical view angle and a predetermined horizontal view angle on an imaging surface. The optical system forms an image on the imaging surface so as to cause resolution in first region (R1) of the imaging surface to be higher than resolution in second region (R2) different from the first region. A position of center (G1) of first region (R1) is at least one of a position horizontally shifted from a center of the horizontal view angle and a position vertically shifted from a center of the vertical view angle.Type: ApplicationFiled: January 4, 2021Publication date: April 29, 2021Inventors: MASAYUKI AIHARA, SHIGENORI YATSURI, YOSHIO MATSUMURA, HIROYUKI SHOBAYASHI, KATSUMI UMEDA, SHIGEHARU KAWAMOTO, KAZUKI MIYAMA
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Publication number: 20210096346Abstract: An imaging optical system is an optical system having an image circle formed on an imaging element. The imaging optical system includes: a plurality of lens elements arranged from an object side to an image plane side, and a diaphragm arranged between the plurality of lens elements. The plurality of lens elements includes a freeform lens having a freeform surface that is asymmetrical between a first direction and a second direction which cross with each other. At least two freeform lenses are located on the object side of the diaphragm.Type: ApplicationFiled: December 10, 2020Publication date: April 1, 2021Inventors: Yoshio MATSUMURA, Hiroyuki SHOBAYASHI
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Patent number: 10917610Abstract: An imaging apparatus is attached to a side of a moving body (for example, vehicle). The imaging apparatus includes an image sensor and an optical system that forms a subject image in a range of a predetermined vertical view angle and a predetermined horizontal view angle on an imaging surface. The optical system forms an image on the imaging surface so as to cause resolution in first region (R1) of the imaging surface to be higher than resolution in second region (R2) different from the first region. A position of center (G1) of first region (R1) is at least one of a position horizontally shifted from a center of the horizontal view angle and a position vertically shifted from a center of the vertical view angle.Type: GrantFiled: May 16, 2019Date of Patent: February 9, 2021Assignee: Panasonic Intellectual Property Management Co., Ltd.Inventors: Masayuki Aihara, Shigenori Yatsuri, Yoshio Matsumura, Hiroyuki Shobayashi, Katsumi Umeda, Shigeharu Kawamoto, Kazuki Miyama
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Publication number: 20210011263Abstract: A lens system that forms an image on an imaging element, includes: first to third lens element arranged in order; a diaphragm; and a lens element on the image surface side. At least one of the first and second lens elements has a free-curved surface, and one of the first and second lens elements has free-curved surfaces on both sides. The third lens element has free-curved surfaces on both sides. The first lens element has a convex shape, toward the object side, of a surface facing the object side. The second lens element has a convex shape, toward the object side, of a surface facing the image surface side. The third lens element has a convex shape, toward the image surface side, of a surface facing the object side. The lens element on the image surface side has, at least on the object side, a free-curved surface.Type: ApplicationFiled: September 23, 2020Publication date: January 14, 2021Inventors: Yoshio MATSUMURA, Hiroyuki SHOBAYASHI
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Patent number: 10623618Abstract: An imaging device includes an image sensor and an optical system. An imaging surface of the image sensor includes a first region including an intersection with an optical axis and a second region different from the first region. The optical system forms a subject image on the imaging surface so as to cause resolution of the first region to be higher than resolution of the second region. A relationship between a vertical view angle and resolution is different from a relationship between a horizontal view angle and resolution in the subject image.Type: GrantFiled: November 14, 2018Date of Patent: April 14, 2020Assignee: Panasonic Intellectual Property Management Co., Ltd.Inventors: Masayuki Aihara, Shigenori Yatsuri, Yoshio Matsumura, Hiroyuki Shobayashi, Katsumi Umeda, Nobuyuki Hirose, Kazuki Miyama
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Publication number: 20190369364Abstract: A lens system includes, in order from an object side to an image plane side: a first lens element having a negative power; a second lens element whose concave surface faces the object side; and a third lens element having a positive power, and satisfies conditions (1) and (2). 0.205<|(TL1/TA)·tan(?)|??(1) 0.120<IH/TA<0.170??(2) where TL1 is a central thickness of the first lens element, TA is a total optical length, ? is a half angle of view, and IH is an image height of the lens system.Type: ApplicationFiled: August 16, 2019Publication date: December 5, 2019Inventors: HIROYUKI SHOBAYASHI, YOSHIO MATSUMURA
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Patent number: 10489666Abstract: An object of the present disclosure is to increase resolution of a part required for sensing while achieving a wide view angle. An imaging device according to the present disclosure includes an image sensor and an optical system. An imaging surface of the image sensor includes a first region and a second region different from the first region. The optical system forms a subject image on the imaging surface so as to cause resolution of an image in the first region to be higher than resolution of an image in the second region. The first region is arranged so as to include a region where an image of a person's face is formed on the imaging surface.Type: GrantFiled: November 14, 2018Date of Patent: November 26, 2019Assignee: Panasonic Intellectual Property Management Co., Ltd.Inventors: Masayuki Aihara, Hisayoshi Yamamoto, Shigenori Yatsuri, Yoshio Matsumura, Hiroyuki Shobayashi
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Patent number: 10447948Abstract: Imaging system (70) disposed at a rear part of moving body (100) includes imaging device (10) and image processing device (20). Imaging device (10) includes an imaging element and an optical system. The imaging element has a plurality of pixels arranged in a two-dimensional manner and generates image data. The optical system forms a subject image on an imaging surface of the imaging element. Image processing device (20) generates a captured image based on the image data. The imaging surface includes a first region corresponding to a first view angle and a second region corresponding to a second view angle that is larger than the first view angle. The optical system is configured so that resolution of the first region is higher than resolution of the second region excluding the first region. A center of the first region is disposed at a position deviated from a center of the imaging surface.Type: GrantFiled: July 14, 2018Date of Patent: October 15, 2019Assignee: Panasonic Intellectual Property Management Co., Ltd.Inventors: Masayuki Aihara, Yoshio Matsumura, Shigenori Yatsuri, Hiroyuki Shobayashi
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Publication number: 20190273889Abstract: An imaging apparatus is attached to a side of a moving body (for example, vehicle). The imaging apparatus includes an image sensor and an optical system that forms a subject image in a range of a predetermined vertical view angle and a predetermined horizontal view angle on an imaging surface. The optical system forms an image on the imaging surface so as to cause resolution in first region (R1) of the imaging surface to be higher than resolution in second region (R2) different from the first region. A position of center (G1) of first region (R1) is at least one of a position horizontally shifted from a center of the horizontal view angle and a position vertically shifted from a center of the vertical view angle.Type: ApplicationFiled: May 16, 2019Publication date: September 5, 2019Inventors: MASAYUKI AIHARA, SHIGENORI YATSURI, YOSHIO MATSUMURA, HIROYUKI SHOBAYASHI, KATSUMI UMEDA, SHIGEHARU KAWAMOTO, KAZUKI MIYAMA
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Publication number: 20190188504Abstract: An object of the present disclosure is to increase resolution of a part required for sensing while achieving a wide view angle. An imaging device according to the present disclosure includes an image sensor and an optical system. An imaging surface of the image sensor includes a first region and a second region different from the first region. The optical system forms a subject image on the imaging surface so as to cause resolution of an image in the first region to be higher than resolution of an image in the second region. The first region is arranged so as to include a region where an image of a person's face is formed on the imaging surface.Type: ApplicationFiled: November 14, 2018Publication date: June 20, 2019Inventors: MASAYUKI AIHARA, HISAYOSHI YAMAMOTO, SHIGENORI YATSURI, YOSHIO MATSUMURA, HIROYUKI SHOBAYASHI
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Publication number: 20190191064Abstract: An imaging device includes an image sensor and an optical system. An imaging surface of the image sensor includes a first region including an intersection with an optical axis and a second region different from the first region. The optical system forms a subject image on the imaging surface so as to cause resolution of the first region to be higher than resolution of the second region. A relationship between a vertical view angle and resolution is different from a relationship between a horizontal view angle and resolution in the subject image.Type: ApplicationFiled: November 14, 2018Publication date: June 20, 2019Inventors: MASAYUKI AIHARA, SHIGENORI YATSURI, YOSHIO MATSUMURA, HIROYUKI SHOBAYASHI, KATSUMI UMEDA, NOBUYUKI HIROSE, KAZUKI MIYAMA
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Publication number: 20180338095Abstract: An imaging system includes first imaging device (10a) and second imaging device (10b). First imaging device (10a) includes a first optical system having a first view angle, and a first imaging element. Second imaging device (10b) includes a second optical system having a second view angle that is wider than the first view angle, and a second imaging element. The second optical system is configured to form an image including a first region and a second region, which do not overlap each other, such that a resolution in the second region is higher than a resolution in the first region corresponding to an imaging range of the first view angle, in an imaging surface of a subject image.Type: ApplicationFiled: May 4, 2018Publication date: November 22, 2018Inventors: Masayuki AIHARA, Yoshio MATSUMURA, Shigenori YATSURI, Hiroyuki SHOBAYASHI
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Publication number: 20180332243Abstract: Imaging system (70) disposed at a rear part of moving body (100) includes imaging device (10) and image processing device (20). Imaging device (10) includes an imaging element and an optical system. The imaging element has a plurality of pixels arranged in a two-dimensional manner and generates image data. The optical system forms a subject image on an imaging surface of the imaging element. Image processing device (20) generates a captured image based on the image data. The imaging surface includes a first region corresponding to a first view angle and a second region corresponding to a second view angle that is larger than the first view angle. The optical system is configured so that resolution of the first region is higher than resolution of the second region excluding the first region. A center of the first region is disposed at a position deviated from a center of the imaging surface.Type: ApplicationFiled: July 14, 2018Publication date: November 15, 2018Inventors: MASAYUKI AIHARA, YOSHIO MATSUMURA, SHIGENORI YATSURI, HIROYUKI SHOBAYASHI