Patents Assigned to Ichikoh Industries
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Patent number: 12366338Abstract: Provided is a vehicle lamp which forms a travel light distribution pattern in which occurrence of a dark area between low and high beam light distributions is suppressed. A projection lens is divided into a plurality of lens areas, each of which has a different focal point position, and one second lens area is a low lens area. A low beam light source module is set such reflected light from the reflector is incident on a back surface of the second lens area, and a low beam light distribution is emitted from an area front surface. A high beam light source module is set such that emitted light from a high beam light source is directly incident on a lens back surface of the projection lens, and a high beam light distribution for each area is emitted from each of a plurality of area front surfaces.Type: GrantFiled: June 29, 2022Date of Patent: July 22, 2025Assignee: Ichikoh Industries, Ltd.Inventors: Hiroya Imamura, Yuji Ohashi, Eiji Suzuki
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Publication number: 20250230911Abstract: The invention is to irradiate a light distribution pattern with an appropriate illuminance. A vehicle light-guiding body includes an incidence surface, a first reflection surface internally reflecting incident light, a second reflection surface internally reflecting the light reflected by the first reflection surface forward, a light blocking part blocking a portion of the light reflected by the second reflection surface, an adjustment surface extending forward from a front side end of the second reflection surface, a transmission surface provided in a state of extending upward in an up-down direction from the front side end of the adjustment surface and transmitting a portion of light reflected by the second reflection surface to a light-guiding body outer part, a connection surface connecting the transmission surface and the light blocking part, and internally reflecting a portion of the light internally reflected by the second reflection surface, a re-incidence surface, and an emission surface.Type: ApplicationFiled: September 5, 2022Publication date: July 17, 2025Applicant: Ichikoh Industries, Ltd.Inventor: Kei ONOMA
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Patent number: 12358424Abstract: An automotive lighting fixtures that can create the desired illumination pattern of light distribution while suppressing enlargement is provided. The vehicular lamp 10 comprises a plurality of light sources (21, 22, 23), a condenser lens 12 that collects light by allowing light from the multiple light sources (21, 22, 23) to enter through an incident surface 34 and exit through an exit surface 35, a light-shielding member 13 provided with a plurality of light-transmitting portions (28) that partially transmit the light collected by the condenser lens 12, and a projection lens 14 that forms an illumination pattern Pi with a plurality of illumination patterns Di corresponding to the plurality of light-transmitting portions by projecting the light transmitted through the light-shielding member 13.Type: GrantFiled: April 6, 2022Date of Patent: July 15, 2025Assignee: Ichikoh Industries, Ltd.Inventor: Yasuhiro Okubo
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Patent number: 12345387Abstract: It is desirable that light functions such as a daytime running lamp, a positioning lamp, and a turn indicator lamp each take an optimal heat dissipation structure. A first light function and a second light function for executing light functions such as a daytime running lamp, a positioning lamp, and a turn indicator lamp are executed by LEDs each including a light source, protection resin, and a light source plate. An LED for the first light function is provided on an upper surface of a heatsink, and an LED for the second light function is provided on a substrate separate from the heatsink. The substrate is mounted at a position on the upper surface of the heatsink so that the first light function and the second light function are respectively performed.Type: GrantFiled: June 20, 2022Date of Patent: July 1, 2025Assignee: Ichikoh Industries, Ltd.Inventors: Takaaki Tsuchiya, Kenji Matsuoka
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Patent number: 12326234Abstract: Provided are a lamp unit that can form an irradiation pattern on a road surface almost without tilting an inclination of a lamp unit axis with respect to the road surface, and a vehicle lighting tool using the lamp unit. A lamp unit includes: a light source; a condenser lens that condenses light from the light source; a light-shielding member (shade) provided with an irradiation slit through which the light condensed by the condensing lens partially passes; and a projection lens that projects the light that passes through the light-shielding member (shade) to form an irradiation pattern, which are arranged along a lamp unit axis. The projection lens has a reference focus set on the lamp unit axis, and is disposed at such a position rotated downward about the reference focus, and a projection lens axis is directed further downward than the lamp unit axis.Type: GrantFiled: November 10, 2022Date of Patent: June 10, 2025Assignee: Ichikoh Industries, Ltd.Inventor: Yasuhiro Okubo
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Patent number: 12292173Abstract: A lamp unit forms an irradiation pattern having a desired brightness distribution while efficiently using light from a light source. In the lamp unit, a light source unit including light sources, a condenser lens, a light shielding member (shade), and a projector lens are arrayed along a lamp unit axis. An incident surface has a curved incident surface section facing the light sources and an annular incident surface section surrounding the curved incident surface section. The condenser lens has a reflective surface surrounding the curved incident surface section. The light shielding member (shade) is disposed such that a light shielding reference point coincides with a lamp unit axis. The light sources are disposed with an emission light axis positioned above the lamp unit axis in the vertical direction. The condenser lens is disposed such that condenser lens axes are positioned above the lamp unit axis in the vertical direction.Type: GrantFiled: December 12, 2022Date of Patent: May 6, 2025Assignee: Ichikoh Industries, Ltd.Inventor: Yasuhiro Okubo
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Patent number: 12281774Abstract: A vehicle lamp includes a lamp housing with a red lens forming a lamp chamber, an excitation-light irradiation unit for emitting excitation light with a wavelength shorter than 500 nm, and a light conversion unit disposed in the lamp chamber. The lamp lens is a red lens. The light conversion unit includes a light emitting film that receives the excitation light and emits secondary light of a wavelength longer than 500 nm, a reflection film for redirecting the secondary light towards the light emitting film. The secondary light exits the vehicle lamp through the red lens.Type: GrantFiled: November 16, 2021Date of Patent: April 22, 2025Assignee: Ichikoh Industries, Ltd.Inventors: Yoshiro Sato, Naotoshi Sakakibara
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Patent number: 12276384Abstract: A vehicle lighting appliance lens, a vehicle lighting appliance unit, and a vehicle lighting appliance device each includes an incidence part, a second reflective surface, a cutoff-line forming part, and an emission surface. The cutoff-line forming part is provided in the left-right direction of a vehicle. As a result, the flowability of resin is improved, the control of a low-beam light distribution pattern is improved, and a cutoff line without warping is formed.Type: GrantFiled: June 8, 2022Date of Patent: April 15, 2025Assignee: Ichikoh Industries, Ltd.Inventor: Kei Onoma
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Patent number: 12270520Abstract: A vehicle lamp includes: a plurality of reflectors including a first reflector; and a plurality of light sources provided in the plurality of reflectors in a mode in which at least one of the plurality of light sources is provided in each of the plurality of reflectors, where the plurality of light sources include two or more first light sources provided in the first reflector, a light distribution pattern of light emitted from the plurality of light sources through the plurality of reflectors includes a first pattern in which a width in a vertical direction decreases toward a vehicle outer side, one of the two or more first light sources is disposed at a focal point of the first reflector, and the other of the two or more first light sources is disposed on a vehicle inner side with respect to the focal point of the first reflector.Type: GrantFiled: August 4, 2020Date of Patent: April 8, 2025Assignee: Ichikoh Industries, Ltd.Inventor: Masateru Hayashi
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Publication number: 20250109834Abstract: A light source unit for a vehicle lamp includes a light generating portion including a light source that emits excitation light, a light emitting layer constituted of an inorganic material and emitting generated light by irradiation of the excitation light, and a holding member that holds the layer; and a lens member that irradiates the generated light from the layer in a front direction in a vehicle-mounted state. The unit further includes a reflective portion disposed between the layer and the lens member, capable of reflecting a part of light from outside of the lens member, and capable of transmitting the generated light generated in the layer; or a light absorbing portion disposed between the layer and the lens member, and absorbing a part of a wavelength component among light from outside of the lens member being associated with the generated light.Type: ApplicationFiled: December 26, 2022Publication date: April 3, 2025Applicant: Ichikoh Industries, Ltd.Inventor: Yoshiro SATO
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Patent number: 12267926Abstract: To provide a vehicular lamp system and a vehicular lamp which can reduce a replacement frequency of the vehicular lamp. The vehicular lamp system includes a vehicular lamp having a plurality of elements capable of irradiating a corresponding irradiation region with light and a detection unit that detects presence or absence of an abnormality in the plurality of elements, and a notification unit that notifies abnormality information concerning occurrence of an abnormality when the abnormality is detected in a target element capable of irradiating a predetermined irradiation region with light among the plurality of elements.Type: GrantFiled: September 30, 2021Date of Patent: April 1, 2025Assignee: Ichikoh Industries, Ltd.Inventors: Kazunori Iwasaki, Hidemaru Koyano, Yuichiro Washi, Harumi Mochimaru
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Patent number: 12247712Abstract: 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 5, 2024Date of Patent: March 11, 2025Assignee: Ichikoh Industries, Ltd.Inventors: Yasuhiro Okubo, Yasufumi Suzuki
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Patent number: 12233777Abstract: To provide a vehicular lamp system capable of reducing a replacement frequency of a vehicular lamp. A vehicular lamp system includes a vehicular lamp having a plurality of elements capable of emitting light to a corresponding irradiation region and a detection unit that detects presence or absence of an abnormality in the plurality of elements, and a notification unit that notifies abnormality information concerning occurrence of the abnormality when the abnormality was detected in the element, in which the notification unit notifies the abnormality information with contents, which are different between a case where the abnormality is detected in the target element capable of emitting light to a predetermined region among the plurality of elements and a case where the abnormality is detected in the non-target element different from the target element among the plurality of elements.Type: GrantFiled: September 30, 2021Date of Patent: February 25, 2025Assignee: Ichikoh Industries, Ltd.Inventors: Yuichiro Washi, Kazunori Iwasaki, Hidemaru Koyano, Takuji Harao
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Publication number: 20250052387Abstract: An object of the present invention is to provide a lamp unit for a vehicular headlamp and a vehicular headlamp, by which it is possible to diffuse left and right ends of a high-beam light distribution pattern further to the left and right. An inner reflecting surface reflects light from a first light-emitting element as reflected light onto a lens. The lens emits the reflected light in a diffused light distribution pattern toward a front of a vehicle. An edge of a diffused light distribution pattern on an outer side of the vehicle is located further to an outer side of the vehicle than an edge of a first partial light distribution pattern on the outer side of the vehicle. As a result, left and right ends of an overall high-beam light distribution pattern can be diffused further to the left and right.Type: ApplicationFiled: December 19, 2022Publication date: February 13, 2025Applicant: Ichikoh Industries, Ltd.Inventors: Hiroya IMAMURA, Kazunori IWASAKI
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Publication number: 20250035285Abstract: A lamp unit forms an irradiation pattern having a desired brightness distribution while efficiently using light from a light source. In the lamp unit, a light source unit including light sources, a condenser lens, a light shielding member (shade), and a projector lens are arrayed along a lamp unit axis. An incident surface has a curved incident surface section facing the light sources and an annular incident surface section surrounding the curved incident surface section. The condenser lens has a reflective surface surrounding the curved incident surface section. The light shielding member (shade) is disposed such that a light shielding reference point coincides with a lamp unit axis. The light sources are disposed with an emission light axis positioned above the lamp unit axis in the vertical direction. The condenser lens is disposed such that condenser lens axes are positioned above the lamp unit axis in the vertical direction.Type: ApplicationFiled: December 12, 2022Publication date: January 30, 2025Applicant: Ichikoh Industries, Ltd.Inventor: Yasuhiro OKUBO
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Patent number: 12203624Abstract: A vehicle lamp includes: a lamp housing; a lamp lens forming a lamp chamber with the housing; an excitation-light irradiation unit for emitting excitation light; a light conversion unit for receiving the excitation light and emitting secondary light towards the lamp lens; and an optical filter for transmitting the excitation light and absorbing the secondary light. The excitation-light irradiation unit, the light conversion unit, and the optical filter are disposed in the lamp chamber. The optical filter is arranged between the excitation-light irradiation unit and the light conversion unit.Type: GrantFiled: November 16, 2021Date of Patent: January 21, 2025Assignee: Ichikoh Industries, Ltd.Inventors: Yoshiro Sato, Naotoshi Sakakibara
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Publication number: 20250003566Abstract: Provided are a lamp unit that can form an irradiation pattern on a road surface almost without tilting an inclination of a lamp unit axis with respect to the road surface, and a vehicle lighting tool using the lamp unit. A lamp unit includes: a light source; a condenser lens that condenses light from the light source; a light-shielding member (shade) provided with an irradiation slit through which the light condensed by the condensing lens partially passes; and a projection lens that projects the light that passes through the light-shielding member (shade) to form an irradiation pattern, which are arranged along a lamp unit axis. The projection lens has a reference focus set on the lamp unit axis, and is disposed at such a position rotated downward about the reference focus, and a projection lens axis is directed further downward than the lamp unit axis.Type: ApplicationFiled: November 10, 2022Publication date: January 2, 2025Applicant: Ichikoh Industries, Ltd.Inventor: Yasuhiro OKUBO
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Patent number: 12152749Abstract: A lens of a vehicular headlight is mounted on a vehicle and includes an incident surface through which light from a light source enters and an emission surface from which light entered from the incident surface is emitted. At an upper edge area including an upper end in an on-board state, the emission surface has a shape allowing a portion of light entered through the incident surface and reached the upper edge area to be internally reflected rearward in the on-board state after being internally reflected toward the incident surface side from the emission surface and internally reflected toward the emission surface side from the incident surface.Type: GrantFiled: August 20, 2020Date of Patent: November 26, 2024Assignee: Ichikoh Industries, Ltd.Inventor: Hiroshi Misuge
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Publication number: 20240369203Abstract: It is desirable that light functions such as a daytime running lamp, a positioning lamp, and a turn indicator lamp each take an optimal heat dissipation structure. A first light function and a second light function for executing light functions such as a daytime running lamp, a positioning lamp, and a turn indicator lamp are executed by LEDs each including a light source, protection resin, and a light source plate. An LED for the first light function is provided on an upper surface of a heatsink, and an LED for the second light function is provided on a substrate separate from the heatsink. The substrate is mounted at a position on the upper surface of the heatsink so that the first light function and the second light function are respectively performed.Type: ApplicationFiled: June 20, 2022Publication date: November 7, 2024Applicant: Ichikoh Industries, Ltd.Inventors: Takaaki TSUCHIYA, Kenji MATSUOKA
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Publication number: 20240360970Abstract: Provided is a vehicle lamp which forms a travel light distribution pattern in which occurrence of a dark area between low and high beam light distributions is suppressed. A projection lens is divided into a plurality of lens areas, each of which has a different focal point position, and one second lens area is a low lens area. A low beam light source module is set such reflected light from the reflector is incident on a back surface of the second lens area, and a low beam light distribution is emitted from an area front surface. A high beam light source module is set such that emitted light from a high beam light source is directly incident on a lens back surface of the projection lens, and a high beam light distribution for each area is emitted from each of a plurality of area front surfaces.Type: ApplicationFiled: June 29, 2022Publication date: October 31, 2024Applicant: Ichikoh Industries, Ltd.Inventors: Hiroya IMAMURA, Yuji OHASHI, Eiji SUZUKI