Patents by Inventor Kayuri Kinoshita
Kayuri Kinoshita 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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Patent number: 11293617Abstract: Provided is a vehicle lighting fixture capable of suppressing the luminous intensity at a portion (e.g., a portion around 4 degrees below the horizontal line) of a low-beam light distribution pattern from becoming relatively high, and also capable of forming a low-beam light distribution pattern with a uniform vertical thickness with respect to the horizontal direction. The vehicle lighting fixture includes a projection lens, a separator disposed behind the projection lens, and a low-beam light source that is disposed behind the separator and emits light for forming a low-beam light distribution pattern by being irradiated forward through the separator and the projection lens in this order.Type: GrantFiled: May 15, 2019Date of Patent: April 5, 2022Assignee: STANLEY ELECTRIC CO., LTD.Inventors: Kayuri Kinoshita, Sadayuki Konishi
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Patent number: 11248770Abstract: An illumination optical system having a light source and a single convex lens with a diffractive structure, wherein the phase function of the diffractive structure is represented by ? ? ( r ) = ? i = 1 N ? ? ? 2 ? i ? r 2 ? i where r represents distance from the central axis of the lens, the relationship |?2|·(0.3R)2<|?4|·(0.3R)4 is satisfied where R represents effective radius of the lens, the second derivative of the phase function has at least one extreme value and at least one point of inflection where r is greater than 30% of R, and the area of a surface of the light source is equal to or greater than 3% of the area of the entrance pupil when the light source side of the lens is defined as the image side.Type: GrantFiled: November 25, 2020Date of Patent: February 15, 2022Assignees: Stanley Electric Co., Ltd., Nalux Co., Ltd.Inventors: Sadayuki Konishi, Kayuri Kinoshita, Kenta Ishii, Norihisa Sakagami, Daisuke Seki
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Publication number: 20210270440Abstract: Provided is a vehicle lighting fixture capable of suppressing the luminous intensity at a portion (e.g., a portion around 4 degrees below the horizontal line) of a low-beam light distribution pattern from becoming relatively high, and also capable of forming a low-beam light distribution pattern with a uniform vertical thickness with respect to the horizontal direction. The vehicle lighting fixture includes a projection lens, a separator disposed behind the projection lens, and a low-beam light source that is disposed behind the separator and emits light for forming a low-beam light distribution pattern by being irradiated forward through the separator and the projection lens in this order.Type: ApplicationFiled: May 15, 2019Publication date: September 2, 2021Inventors: Kayuri Kinoshita, Sadayuki Konishi
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Publication number: 20210080075Abstract: An illumination optical system having a light source and a single convex lens with a diffractive structure, wherein the phase function of the diffractive structure is represented by ? ? ( r ) = ? i = 1 N ? ? ? 2 ? i ? r 2 ? i where r represents distance from the central axis of the lens, the relationship |?2|·(0.3R)2<|?4|·(0.3R)4 is satisfied where R represents effective radius of the lens, the second derivative of the phase function has at least one extreme value and at least one point of inflection where r is greater than 30% of R, and the area of a surface of the light source is equal to or greater than 3% of the area of the entrance pupil when the light source side of the lens is defined as the image side.Type: ApplicationFiled: November 25, 2020Publication date: March 18, 2021Applicants: STANLEY ELECTRIC CO., LTD., NALUX CO., LTD.Inventors: Sadayuki KONISHI, Kayuri KINOSHITA, Kenta ISHII, Norihisa SAKAGAMI, Daisuke SEKI
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Patent number: 10830406Abstract: The projector-type headlamp comprises a projection lens unit and a light source unit. A diffraction grating designed to eliminate chromatic aberrations is provided on at least part of a lens surface of the lens unit. When an x axis in the horizontal direction and a y axis in the vertical direction are defined on a plane perpendicular to the optical axis, R1 is the maximum y coordinate on the lens surface, and 0?A<1, an area of the lens surface in which y<A·R1 comprises a curved surface or a flat surface, at least partially provided with the diffraction grating, and an area of the lens surface in which y?A·R1 comprises a separate curved surface that has a power greater than the power of the curved surface or flat surface, and is not provided with a diffraction grating.Type: GrantFiled: November 15, 2018Date of Patent: November 10, 2020Assignees: Stanley Electric Co., Ltd., Nalux Co., Ltd.Inventors: Hiroaki Kurosu, Kayuri Kinoshita, Kouei Hatade, Norihisa Sakagami
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Patent number: 10724702Abstract: A vehicular lamp fitting, comprising a projection lens, a separator that is disposed behind the projection lens, a low beam light source and an ADB light source that are disposed behind the separator, wherein the separator includes an upper separator main body, and a lower separator main body, and a first region (a lower portion of an upper entry surface of the projection lens and an upper portion of a lower entry surface of the projection lens) matches the focal plane of the projection lens, a second region (a portion above the lower portion of the upper entry surface of the projection lens) is disposed ahead of or behind the focal plane of the projection lens, and a third region (a portion below the upper portion of the lower entry surface of the projection lens) is disposed ahead of or behind the focal plane of the projection lens.Type: GrantFiled: June 18, 2019Date of Patent: July 28, 2020Assignee: STANLEY ELECTRIC CO., LTD.Inventors: Kayuri Kinoshita, Sadayuki Konishi
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Publication number: 20190390834Abstract: A vehicular lamp fitting, comprising a projection lens, a separator that is disposed behind the projection lens, a low beam light source and an ADB light source that are disposed behind the separator, wherein the separator includes an upper separator main body, and a lower separator main body, and a first region (a lower portion of an upper entry surface of the projection lens and an upper portion of a lower entry surface of the projection lens) matches the focal plane of the projection lens, a second region (a portion above the lower portion of the upper entry surface of the projection lens) is disposed ahead of or behind the focal plane of the projection lens, and a third region (a portion below the upper portion of the lower entry surface of the projection lens) is disposed ahead of or behind the focal plane of the projection lens.Type: ApplicationFiled: June 18, 2019Publication date: December 26, 2019Inventors: Kayuri Kinoshita, Sadayuki Konishi
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Publication number: 20190086052Abstract: The projector-type headlamp comprises a projection lens unit and a light source unit. A diffraction grating designed to eliminate chromatic aberrations is provided on at least part of a lens surface of the lens unit. When an x axis in the horizontal direction and a y axis in the vertical direction are defined on a plane perpendicular to the optical axis, R1 is the maximum y coordinate on the lens surface, and 0?A<1, an area of the lens surface in which y<A·R1 comprises a curved surface or a flat surface, at least partially provided with the diffraction grating, and an area of the lens surface in which y?A·R1 comprises a separate curved surface that has a power greater than the power of the curved surface or flat surface, and is not provided with a diffraction grating.Type: ApplicationFiled: November 15, 2018Publication date: March 21, 2019Inventors: Hiroaki KUROSU, Kayuri KINOSHITA, Kouei HATADE, Norihisa SAKAGAMI
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Patent number: 10076994Abstract: A vehicle lamp includes a first light source configured to emit first light, a first reflective member configured to reflect the first light downward with respect to a vehicle advancing direction, a second reflective member configured to reflect some of the first light reflected by the first reflective member upward with respect to the vehicle advancing direction, a second light source disposed below the second reflective member and configured to emit second light in the vehicle advancing direction, and a projection lens configured to project the first light and the second light in the vehicle advancing direction, wherein the projection lens has a refracting surface configured to refract at least some of the second light downward than an optical axis of the second light.Type: GrantFiled: April 14, 2017Date of Patent: September 18, 2018Assignee: STANLEY ELECTRIC CO., LTD.Inventors: Kayuri Kinoshita, Hisashi Furuya
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Publication number: 20170299137Abstract: A vehicle lamp includes a first light source configured to emit first light, a first reflective member configured to reflect the first light downward with respect to a vehicle advancing direction, a second reflective member configured to reflect some of the first light reflected by the first reflective member upward with respect to the vehicle advancing direction, a second light source disposed below the second reflective member and configured to emit second light in the vehicle advancing direction, and a projection lens configured to project the first light and the second light in the vehicle advancing direction, wherein the projection lens has a refracting surface configured to refract at least some of the second light downward than an optical axis of the second light.Type: ApplicationFiled: April 14, 2017Publication date: October 19, 2017Inventors: Kayuri Kinoshita, Hisashi Furuya