Patents by Inventor Yasuhiro Okubo
Yasuhiro Okubo 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: 20240093854Abstract: The present invention provides vehicle lighting capable of forming an irradiation pattern with a desired brightness distribution while efficiently utilizing light from light sources. The vehicle lighting includes both the light sources disposed in parallel, a condenser lens that condenses light from the light sources, a light-shielding member provided with an irradiation slit, and a projection lens that projects the light, and forms an irradiation pattern. The incident surface has a curved incident surface section and an annular incident surface section, the condenser lens has a reflective surface that surrounds the curved incident surface section, the first light source is disposed such that a first emitting surface is located on a projection lens optical axis of the projection lens, and the second light source is disposed inside the annular incident surface section such that a second emitting surface does not intersect the projection lens optical axis.Type: ApplicationFiled: January 6, 2022Publication date: March 21, 2024Applicant: Ichikoh Industries, Ltd.Inventor: Yasuhiro OKUBO
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Publication number: 20240052985Abstract: A vehicle light fixture include a first light distribution illuminator that emits a first light distribution to the front of a vehicle, and a second light distribution illuminator that emits a second light distribution having a light-dark boundary line at least on a side of the vehicle, wherein illumination of the first light distribution illuminator and the second light distribution illuminator is controlled in response to a predetermined operation of the first light distribution illuminator by the driver of the vehicle. The second light distribution illuminator includes a light source, and a projection lens that projects light emitted from the light source to form an illumination pattern surrounded by multiple light-dark boundary lines and emit the illumination pattern to a side of the vehicle, and the projection lens focuses more of the light emitted from the light source passing outwardly from the optical axis of the projection lens.Type: ApplicationFiled: October 26, 2023Publication date: February 15, 2024Applicant: Ichikoh Industries, Ltd.Inventors: Yasuhiro OKUBO, Yasufumi SUZUKI
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Publication number: 20240052986Abstract: A vehicle light fixture include a first light distribution illuminator that emits a first light distribution to the front of a vehicle, and a second light distribution illuminator that emits a second light distribution having a light-dark boundary line at least on a side of the vehicle, wherein illumination of the first light distribution illuminator and the second light distribution illuminator is controlled in response to a predetermined operation of the first light distribution illuminator by the driver of the vehicle. The second light distribution illuminator includes a light source, and a projection lens that projects light emitted from the light source to form an illumination pattern surrounded by multiple light-dark boundary lines and emit the illumination pattern to a side of the vehicle, and the projection lens focuses more of the light emitted from the light source passing outwardly from the optical axis of the projection lens.Type: ApplicationFiled: October 26, 2023Publication date: February 15, 2024Applicant: Ichikoh Industries, Ltd.Inventors: Yasuhiro OKUBO, Yasufumi SUZUKI
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Patent number: 11835191Abstract: A vehicle light fixture include a first light distribution illuminator that emits a first light distribution to the front of a vehicle, and a second light distribution illuminator that emits a second light distribution having a light-dark boundary line at least on a side of the vehicle, wherein illumination of the first light distribution illuminator and the second light distribution illuminator is controlled in response to a predetermined operation of the first light distribution illuminator by the driver of the vehicle. The second light distribution illuminator includes a light source, and a projection lens that projects light emitted from the light source to form an illumination pattern surrounded by multiple light-dark boundary lines and emit the illumination pattern to a side of the vehicle, and the projection lens focuses more of the light emitted from the light source passing outwardly from the optical axis of the projection lens.Type: GrantFiled: March 27, 2020Date of Patent: December 5, 2023Assignee: Ichikoh Industries, Ltd.Inventors: Yasuhiro Okubo, Yasufumi Suzuki
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Patent number: 11738681Abstract: To provide a vehicular lamp capable of making a desired light distribution on a light shielding member while having a simple configuration. The vehicular lamp comprises a first and second light source each having a light emitting surface and being arranged in a predetermined parallel direction; a single condenser lens for condensing light emitted from the first and second light source; a light shielding member provided with an irradiation slit through which light condensed by the condenser lens is partially passed; and a projection lens for projecting light passed through the light shielding member to form an irradiation pattern. The first and second light source are arranged with an interval equal to or larger than dimensions in the parallel direction on the light emitting surfaces, the condenser lens makes a light distribution in which a high light quantity area with the highest light quantity is single in the parallel direction.Type: GrantFiled: December 24, 2020Date of Patent: August 29, 2023Assignee: Ichikoh Industries, Ltd.Inventor: Yasuhiro Okubo
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Patent number: 11719407Abstract: A vehicle light includes: a light source; a light condensing lens condensing a light emitted from the light source; and an irradiation pattern forming member having an irradiation slit for allowing the light to partially pass through, and that forms the passing light into an irradiation pattern. The irradiation slit has a farthest location that corresponds to a farthest portion projected at a farthest position in the irradiation pattern and a nearest location that corresponds to a nearest portion projected at a nearest position in the irradiation pattern. The light condensing lens, on the irradiation pattern forming member, makes the farthest location brightest and the nearest location darkest in an upper-lower direction, and diffuses the light emitted from the light source more in a width direction, which is orthogonal to an optical axis direction and to the upper-lower direction, than in the upper-lower direction.Type: GrantFiled: June 10, 2020Date of Patent: August 8, 2023Assignee: Ichikoh Industries, Ltd.Inventor: Yasuhiro Okubo
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Publication number: 20220373149Abstract: A vehicular lamp includes a light source and a projection lens to form an irradiation pattern. The irradiation pattern includes a main instruction symbol and one or more sub instruction symbols. The main instruction symbol is more emphasized than the sub instruction symbols. In the projection lens, an incidence surface is a continuous surface. The projection lens includes an upper lens part that forms the main instruction symbol and a lower lens part that forms the sub instruction symbols. In the projection lens, at least both end parts in a horizontal direction of an upper emission surface allowing emission of light from the light source in the upper lens part protrude further to a projecting side than both end parts in the horizontal direction of a lower emission surface allowing emission of the light from the light source in the lower lens part.Type: ApplicationFiled: October 21, 2020Publication date: November 24, 2022Applicant: Ichikoh Industries, Ltd.Inventor: Yasuhiro OKUBO
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Publication number: 20220371509Abstract: To provide a vehicular lamp capable of making a desired light distribution on a light shielding member while having a simple configuration. The vehicular lamp comprises a first and second light source each having a light emitting surface and being arranged in a predetermined parallel direction; a single condenser lens for condensing light emitted from the first and second light source; a light shielding member provided with an irradiation slit through which light condensed by the condenser lens is partially passed; and a projection lens for projecting light passed through the light shielding member to form an irradiation pattern. The first and second light source are arranged with an interval equal to or larger than dimensions in the parallel direction on the light emitting surfaces, the condenser lens makes a light distribution in which a high light quantity area with the highest light quantity is single in the parallel direction.Type: ApplicationFiled: December 24, 2020Publication date: November 24, 2022Applicant: Ichikoh Industries, Ltd.Inventor: Yasuhiro OKUBO
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Patent number: 11415290Abstract: A vehicle lamp includes a mirror, a plurality of light-emitting elements, and a lens. The mirror is capable of rotating a mirror surface around a rotary axis in a vertical direction. The mirror surface extends along the rotary axis. The light-emitting elements are arranged on a lateral side more than the mirror in a vehicle width direction. The lens irradiates a range wider than the mirror with light from the light-emitting elements. The light-emitting elements are disposed apart from each other such that light distribution images of the light reflected by the mirror surface are aligned along the vehicle width direction. The mirror rotates to combine the adjacent light distribution images and form a main light distribution pattern.Type: GrantFiled: September 25, 2019Date of Patent: August 16, 2022Assignee: Ichikoh Industries, Ltd.Inventors: Kazunori Iwasaki, Yasuhiro Okubo, Chiharu Sasaki
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Publication number: 20220221123Abstract: A vehicle light includes: a light source; a light condensing lens condensing a light emitted from the light source; and an irradiation pattern forming member having an irradiation slit for allowing the light to partially pass through, and that forms the passing light into an irradiation pattern. The irradiation slit has a farthest location that corresponds to a farthest portion projected at a farthest position in the irradiation pattern and a nearest location that corresponds to a nearest portion projected at a nearest position in the irradiation pattern. The light condensing lens, on the irradiation pattern forming member, makes the farthest location brightest and the nearest location darkest in an upper-lower direction, and diffuses the light emitted from the light source more in a width direction, which is orthogonal to an optical axis direction and to the upper-lower direction, than in the upper-lower direction.Type: ApplicationFiled: June 10, 2020Publication date: July 14, 2022Applicant: Ichikoh Industries, Ltd.Inventor: Yasuhiro OKUBO
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Publication number: 20220178509Abstract: A vehicle light fixture include a first light distribution illuminator that emits a first light distribution to the front of a vehicle, and a second light distribution illuminator that emits a second light distribution having a light-dark boundary line at least on a side of the vehicle, wherein illumination of the first light distribution illuminator and the second light distribution illuminator is controlled in response to a predetermined operation of the first light distribution illuminator by the driver of the vehicle. The second light distribution illuminator includes a light source, and a projection lens that projects light emitted from the light source to form an illumination pattern surrounded by multiple light-dark boundary lines and emit the illumination pattern to a side of the vehicle, and the projection lens focuses more of the light emitted from the light source passing outwardly from the optical axis of the projection lens.Type: ApplicationFiled: March 27, 2020Publication date: June 9, 2022Applicant: Ichikoh Industries, Ltd.Inventors: Yasuhiro OKUBO, Yasufumi SUZUKI
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Publication number: 20220034472Abstract: A vehicle lamp includes a mirror, a plurality of light-emitting elements, and a lens. The mirror is capable of rotating a mirror surface around a rotary axis in a vertical direction. The mirror surface extends along the rotary axis. The light-emitting elements are arranged on a lateral side more than the mirror in a vehicle width direction. The lens irradiates a range wider than the mirror with light from the light-emitting elements. The light-emitting elements are disposed apart from each other such that light distribution images of the light reflected by the mirror surface are aligned along the vehicle width direction. The mirror rotates to combine the adjacent. light distribution images and form a main light distribution pattern.Type: ApplicationFiled: September 25, 2019Publication date: February 3, 2022Applicant: lchikoh lndustries LtdInventors: Kazunori IWASAKI, Yasuhiro OKUBO, Chiharu SASAKI
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Patent number: 11137125Abstract: A vehicle lamp includes a light source, and an aberration correction lens unit, that corrects chromatic aberration, irradiates in a frontward direction with direct light from the light source. The aberration correction lens unit includes a first lens located in a front side of the light source, and a second lens located in front of the first lens. The aberration correction lens unit performs vibration control for vibrating intersections in a front-back direction. The intersections are intersections of an optical axis, and red, green, and blue components of white light incident in parallel from the front toward the outside in the radial direction from the optical axis side of the aberration correction lens unit.Type: GrantFiled: April 23, 2019Date of Patent: October 5, 2021Assignee: Ichikoh Industries, Ltd.Inventor: Yasuhiro Okubo
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Publication number: 20210239291Abstract: A vehicle lamp includes a light source, and an aberration correction lens unit, that corrects chromatic aberration, irradiates in a frontward direction with direct light from the light source. The aberration correction lens unit includes a first lens located in a front side of the light source, and a second lens located in front of the first lens. The aberration correction lens unit performs vibration control for vibrating intersections in a front-back direction. The intersections are intersections of an optical axis, and red, green, and blue components of white light incident in parallel from the front toward the outside in the radial direction from the optical axis side of the aberration correction lens unit.Type: ApplicationFiled: April 23, 2019Publication date: August 5, 2021Applicant: Ichikoh Industries, Ltd.Inventor: Yasuhiro OKUBO
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Patent number: 10982833Abstract: The vehicle lamp of the present invention includes: a first light source that emits light for low-beam light distribution; a lens arranged in a front side of the first light source; a shade that is arranged between the first light source and the lens and forms a cut-off line of a low-beam light distribution pattern; a reflector that reflects light from the first light source towards the lens; and a second light source that is arranged between the first light source and the lens and emits light for high-beam additional light distribution. A rear focal point of the lens is located more to a front side than a second focal point which is a focal point on a front side of the reflector, and a lens optical axis of the lens is inclined forward and obliquely downward with respect to a lamp optical axis of the lamp.Type: GrantFiled: October 11, 2018Date of Patent: April 20, 2021Assignee: Ichikoh Industries, Ltd.Inventors: Kazunori Iwasaki, Yasuhiro Okubo, Takanori Hamamoto, Yosuke Omori
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Publication number: 20200248884Abstract: The vehicle lamp of the present invention includes: a first light source that emits light for low-beam light distribution; a lens arranged in a front side of the first light source; a shade that is arranged between the first light source and the lens and forms a cut-off line of a low-beam light distribution pattern; a reflector that reflects light from the first light source towards the lens; and a second light source that is arranged between the first light source and the lens and emits light for high-beam additional light distribution. A rear focal point of the lens is located more to a front side than a second focal point which is a focal point on a front side of the reflector, and a lens optical axis of the lens is inclined forward and obliquely downward with respect to a lamp optical axis of the lamp.Type: ApplicationFiled: October 11, 2018Publication date: August 6, 2020Applicant: Ichikoh Industries, Ltd.Inventors: Kazunori IWASAKI, Yasuhiro OKUBO, Takanori HAMAMOTO, Yosuke OMORI
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Patent number: 10697603Abstract: A lens of vehicular light has an entrance surface comprising: an upper part entrance surface for allowing light from the light source to enter, the light source being irradiated in an upper direction at a greater angle than a predetermined upper irradiation angle; a lower part entrance surface for allowing light from the light source to enter, the light source being irradiated in a lower direction at a greater angle than a predetermined lower irradiation angle; and a central entrance surface between the upper part entrance surface and the lower part entrance surface. The lower part entrance surface has a first lower part entrance surface on the light source optical axis side, and a second lower part entrance surface below the first lower part entrance surface. The lens performs the light distribution control whereby the light entering in the second lower part entrance surface is irradiated in a lower direction.Type: GrantFiled: May 13, 2016Date of Patent: June 30, 2020Assignee: ICHIKOH INDUSTRIES, LTD.Inventor: Yasuhiro Okubo
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Patent number: 10677406Abstract: The purpose of the present invention is to provide a vehicular lamp which creates light directed upward using a reflector that allows the light incident below the lower end of the lens to exit upward through a lens and which minimizes the uneven light distribution of the created light distribution pattern. The vehicular lamp according to the present invention includes: a semiconductor light source unit (20) including a light-emitting chip (21); a horizontally long lens (30) disposed in front of the light source unit (20); and a reflector (40) positioned between the lens (30) and light source unit (40) and disposed below the light-emitting chip (21) along a vertical direction. The reflector (40) includes a reflection surface (41) for creating a plurality of virtual focal points intersecting a vertical axis passing through the light emitting center O of the light-emitting chip (21).Type: GrantFiled: April 19, 2017Date of Patent: June 9, 2020Assignee: Ichikoh Industries, Ltd.Inventor: Yasuhiro Okubo
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Patent number: 10527245Abstract: A lighting fixture for vehicle is provided with light source and lens, the light source comprising substrate, first light-emitting part having first base substrate provided on the substrate, and a plurality of second light-emitting parts positioned on the outside of first light-emitting part in horizontal direction and having second base substrate provided on the substrate. The first light-emitting part comprises a pair of first light-emitting chip parts provided on first base substrate with first separating part interposed therebetween. Each of the plurality of second light-emitting parts is equipped with a second light-emitting chip part obtained by covering, with a phosphor, a second light-emitting chip mounted on a second base substrate with the light-emitting layer side as the second base substrate side. The pair of first light-emitting chip parts comprise a first light-emitting chip mounted on the first base substrate, and a phosphor that covers the first light-emitting chip.Type: GrantFiled: August 9, 2017Date of Patent: January 7, 2020Assignee: Ichikoh Industries, Ltd.Inventor: Yasuhiro Okubo
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Patent number: 10371334Abstract: A vehicle lamp is provided with: a semi-conductor-type light source; a second lens having an incident surface in which two convex sections protruding toward the light source side on the outer side in the horizontal direction from the center are connected at the center side to form a portion on the center side which is recessed on the inner side; and a first lens that is disposed between the light source and the second lens and irradiates the second lens with the light from the light source such that a spread of light from the light source is converted to a spread entering the incident surface of the second lens and a diffused light distribution pattern irradiated on the vehicle front side spreads outward in the vehicle horizontal direction.Type: GrantFiled: November 10, 2016Date of Patent: August 6, 2019Assignee: Ichikoh Industries, Ltd.Inventor: Yasuhiro Okubo