With Mask Or Screen For At Least One Filament Patents (Class 362/214)
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Patent number: 11460176Abstract: The disclosure provides an integral control system for a galvanometer laser lamp. The system includes an integral control and drive device, a power source, and a plurality of component parts. The integral control and drive device includes a drive board, a galvanometer control module, and a laser control module. The component parts include a galvanometer motor and a laser that are respectively connected to the galvanometer control module and the laser control module. This optimizes the volume of the integral control and drive device and improves wiring between the modules, effectively reduces the volume of the entire system, and lowers the transportation and mounting costs.Type: GrantFiled: January 19, 2022Date of Patent: October 4, 2022Inventor: Peijian Xu
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Patent number: 9528672Abstract: The invention relates to a light module of a lighting device in a motor vehicle. The light module includes at least two light sources for emitting light and at least two primary optics assigned to the light sources for focusing the light. Further, the light module includes a common secondary optics for projecting the light beams onto a roadway and for producing a resulting overall light distribution of the light module. At least one of the light sources is configured for creating a main light distribution and at least another one of the light sources is configured for creating a secondary light distribution. The primary optics, which is assigned to the light source for creating a secondary light distribution, is arranged in several parts whereby a first partial primary optics is arranged next the primary optics which is assigned to the light source for creating the main light distribution.Type: GrantFiled: March 31, 2014Date of Patent: December 27, 2016Assignee: Automotive Lighting Reutlingen GmbHInventor: Matthias Brendle
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Patent number: 9487126Abstract: An illumination apparatus for a vehicle is disclosed. The illumination apparatus comprises a photoluminescent portion disposed on a downward facing portion of the vehicle and a light source located proximate the downward facing portion. The light source is configured to emit light at a first wavelength directed toward the photoluminescent portion. In response to receiving the light at the first wavelength, the photoluminescent portion is configured to convert the first wavelength to at least a second wavelength, longer than the first wavelength, to illuminate a surface beneath the vehicle.Type: GrantFiled: July 2, 2014Date of Patent: November 8, 2016Assignee: Ford Global Technologies, LLCInventors: Stuart C. Salter, Cornel Lewis Gardner
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Patent number: 9188297Abstract: A reflector includes a first reflector portion located above the central axis of a headlamp extending in the longitudinal direction of a vehicle, and a second reflector portion located below the central axis. A first light source and a second light source are arranged such that: the light emitted from the first light source is reflected by the first reflector portion to form a first light distribution pattern; and the light emitted from the second light source forms two partial light distribution patterns by being reflected with both the first reflector portion and the second reflector portion, and a second light distribution pattern, which is different from the first light distribution pattern, is formed by combining the two partial light distribution patterns.Type: GrantFiled: February 7, 2012Date of Patent: November 17, 2015Assignee: KOITO MANUFACTURING CO., LTD.Inventor: Masahito Naganawa
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Patent number: 8267547Abstract: An improved incandescent lamp and incandescent lighting system are disclosed, for projecting a beam of light with substantially improved energy efficiency. The incandescent lamp includes a pair of reflective ceramic filament supports for supporting one or more filaments in prescribed position(s) within an envelope while reflecting back substantially all visible and infrared light for incorporation into the projected beam or for absorption by the filament(s). The incandescent lighting system includes a special infrared-reflective shroud concentrically encircling the incandescent lamp, for reflecting infrared light back toward the lamp filament(s) while transmitting visible light to a concave reflector for incorporation into the projected beam. The infrared-reflective coating is deposited onto the shroud's inner surface, and it includes a dielectric coating and an underlying transparent conductive coating.Type: GrantFiled: June 24, 2010Date of Patent: September 18, 2012Inventor: David W. Cunningham
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Patent number: 8113695Abstract: A component of an actuatable apparatus has a substrate, a selectively light- transmissive opaque covering, and an illumination source. The opaque covering is applied to an obverse surface or a reverse surface of the substrate to selectively enable and prevent transmission of light therethrough. The illumination source is adjacent the reverse surface for illuminating a selected area of the substrate. The opaque covering is characterized by first and second portions collectively defining a pattern associated with the selected area. The first portion enables transmission of light therethrough, and the second portion prevents or impedes transmission of light therethrough. Actuation of the illumination source directs light through the first portion but not through the second portion to reveal the pattern. The opaque covering renders the pattern invisible when the illumination source is in the non- illuminated state, and visible when the illumination source is in the illuminated state.Type: GrantFiled: June 18, 2009Date of Patent: February 14, 2012Assignee: ADAC Plastics, Inc.Inventors: Joseph S. Meinke, Robert L. Bingle, Todd Pastrick, Ian R. Pettigrew, Thomas R. Futryk, Todd W. Trap
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Publication number: 20080158869Abstract: An optical component assembly for use in a direct backlight module is provided. The optical component assembly possesses a light transmitting capability for projecting light emitted from the light source towards at least one specific direction. A pattern, which corresponds to the high-voltage end of the light source, is partially formed on the optical component assembly to retard light transmittance in part of the optical component assembly, and thus, improve the light uniformity provided by the backlight module.Type: ApplicationFiled: April 5, 2007Publication date: July 3, 2008Applicant: AU OPTRONICS CORP.Inventors: Chih-Chieh Su, Chih Kang Wu
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Patent number: 7325954Abstract: A vehicle light with a bulb arranged sideway is provided which can reduce a length of the entire light without a deterioration in its brightness and with a simple configuration. The vehicle light can include a light source arranged sideway on an optical axis extending horizontally in the front-to-rear direction of a vehicle. First and second projection lenses can be arranged in front of the light source above and below the optical axis. First and second reflecting surfaces can be provided for reflecting light emitted from the light source to the respective first and second projection lenses. A third reflecting surface can be provided for reflecting light emitted upward from the light source toward the area below the light source. A plane mirror can also be provided and configured to direct light reflected from the third reflecting surface toward the rear focus of the second projection lens.Type: GrantFiled: September 26, 2006Date of Patent: February 5, 2008Assignee: Stanley Electric Co., Ltd.Inventor: Takashi Futami
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Patent number: 7281828Abstract: The invention concerns vehicle headlights with two light functions, comprising a reflector (10) and a two-filament bulb (14), whose first spiral-wound filament (14?) generates a first light function and whose second spiral-wound filament (14?) generates a second light function, each light function being associated with a region (10?, 10?) of the reflector (10), wherein the second spiral-wound filament (14?) cooperates with a covering cap (18) which shields a portion of the light for the light function associated with this spiral-wound filament, which would otherwise impinge on the region (10?) of the reflector (10) which is associated with the first light function, wherein the second spiral-wound filament (14?) generates a turning and/or curve light and the regions (10?, 10?) of the reflector (10) are separated by a separating line (12) which extends in a segment of the reflector at an angle of between ±0 and 35°, in particular ±15 and 35°, with respect to the vertical line.Type: GrantFiled: July 26, 2004Date of Patent: October 16, 2007Assignee: Automotive Lighting Reutlingen GmbHInventors: Ralf Steinhart, Michael Scholl, Friedemann Schlienz, Silke Barton
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Patent number: 7144143Abstract: A vehicle headlight includes a first lamp unit and a second lamp unit. The first lamp unit includes a light source and a reflector. The light source includes a first filament, a second filament, and a shade. The reflector includes a first reflection surface, a second reflection surface, and a third reflection surface. The third reflection surface reflects light from the first filament to obtain a first condensing light-distribution-pattern, and reflects light from the second filament to obtain a second condensing light-distribution-pattern.Type: GrantFiled: December 1, 2004Date of Patent: December 5, 2006Assignee: Ichikoh Industries, Ltd.Inventor: Kazuhiro Matsumoto
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Patent number: 7021791Abstract: A vehicular headlamp apparatus 1 is provided with a first and a second light-emitting portion including a common light source 3 or a plurality of light sources 3 and 3?. The first light-emitting portion 2_1 forms a base beam by normally lighting the light source 3 to use emission light from the light source. The second light-emitting portion 2_2 is caused to emit an auxiliary beam for supplementing the light distribution of the base beam made available by the first light-emitting portion 2_1. The distribution, the quantity of light or light color of the light emitted from the first light-emitting portion 2_1 is varied with the travel condition or travel environment of a vehicle.Type: GrantFiled: March 24, 2000Date of Patent: April 4, 2006Assignee: Koito Manufacturing Co., Ltd.Inventor: Shoji Kobayashi
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Patent number: 6822392Abstract: The invention relates to an incandescent lamp for a motor vehicle headlight. The secondary filament (2) is arranged in such a way that, in a projection plane that is arranged perpendicular to the reference plane (B), the edge (2a), facing the antidazzle device (4), of the image, projected onto the projection plane, of the second incandescent filament (2) is arranged over the entire length of the second incandescent filament (2) between the reference axis (A) and the antidazzle device (4), and the edge (2a), facing the antidazzle device (4), of the image, projected to the scale 1:1 onto the projection plane, of the second incandescent filament (2) has a prescribed spacing from the reference axis (A). It is thereby possible to produce the light/dark boundary for the lower beam with the aid of the edge (2a) of the secondary filament image (2).Type: GrantFiled: April 8, 2003Date of Patent: November 23, 2004Assignee: Patent-Treuhand-Gesellschaft fur elektrische Gluhlampen mbHInventors: Gerhard Behr, Manfred Bühler, Christian Seichter, Klaus Wittmann
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Patent number: 6808299Abstract: The luminaire comprises a reflector body (1) which has a reflecting coating (2) on its reflection side (3), and means (4) for accommodating an electric lamp on the reflection side (3). The reflection side (3) has an area (31) with a metal reflecting surface. The area (31) may have a metal sheet cover (32). The cover (32) may follow the surface of the area (31), or it may be spaced apart therefrom. The luminaire benefits from the low absorption of light by the coating (2), and from the high specular reflection of metal in the area (31) to give a high light intensity in a direction determined by the position of the area (31) with respect to a lamp accommodated by the means (4).Type: GrantFiled: March 20, 2002Date of Patent: October 26, 2004Assignee: Koninklijke Philips Electronics N.V.Inventors: Hendrik Wijbenga, Jean Entrop
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Patent number: 6709130Abstract: The invention relates to a double-filament halogen incandescent lamp for a motor vehicle headlamp. In order to reduce the light shading effects caused by the filament holder, at least one of the power supply wires (8) is provided with a section (8a) that projects out of the common plane of the power supply wires (7, 8, 9) and is guided past the main filament (5), this section (8a) being shaped such that light beams that are emitted by the main filament (5) perpendicular to its filament axis are not obstructed by the power supply wire (8).Type: GrantFiled: September 12, 2002Date of Patent: March 23, 2004Assignee: Pätent-Treuhand-Gesellschaft fuer elektrische Gluehlampen mbHInventors: Gerhard Behr, Peter Helbig, Christian Seichter
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Patent number: 6644828Abstract: A vehicular headlamp includes a bulb with two filaments disposed one behind the other, a bulb internal shade provided in the vicinity of the front filament, and a reflector for reflecting light produced by the filaments. The reflector includes an upper part and a lower part. A bulb external shade is provided outside the bulb. The bulb internal shade prevents light produced by the front filament from entering into the lower reflector part, and the bulb external shade prevents light produced by the rear filament from entering into the upper reflector part.Type: GrantFiled: September 20, 2001Date of Patent: November 11, 2003Assignee: Koito Manufacturing Co., Ltd.Inventor: Toshiyuki Kinouchi
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Patent number: 6623148Abstract: An infrared light irradiation lamp for an automobile comprises a lighting chamber S formed by a lamp body 12 and a front lens 14, a reflector 16 provided in the lamp body 12, a light source 20 provided ahead of the reflector 16, a cylindrical globe 30 for infrared light formation provided to cover the light source 20 and serving to shield a visible light and to transmit only an infrared light and a globe moving mechanism 70 for moving the globe 30, the globe moving mechanism 70 being capable of switching a lamp function into an infrared light irradiation configuration in which the globe 30 covers the light source and a visible light irradiation configuration in which the globe 30 is moved forward from the light source 20, wherein power regulating means is provided on a power supply path reaching the light source 20 and a power supplied from the light source at time of infrared light irradiation is regulated to be lower than a power supplied from the light source at time of visible light irradiation.Type: GrantFiled: April 10, 2002Date of Patent: September 23, 2003Assignee: Koito Manufacturing Co., Ltd.Inventors: Seiichiro Yagi, Takashi Inoue
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Publication number: 20030053309Abstract: The invention relates to a double-filament halogen incandescent lamp for a motor vehicle headlamp. In order to reduce the light shading effects caused by the filament holder, at least one of the power supply wires (8) is provided with a section (8a) that projects out of the common plane of the power supply wires (7, 8, 9) and is guided past the main filament (5), this section (8a) being shaped such that light beams that are emitted by the main filament (5) perpendicular to its filament axis are not obstructed by the power supply wire (8).Type: ApplicationFiled: September 12, 2002Publication date: March 20, 2003Applicant: PATENT-TREUHAND-GESELLSCHAFT FUR ELEKTRISCHE GLUHLAMPEN MBHInventors: Gerhard Behr, Peter Helbig, Christian Seichter
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Publication number: 20030007342Abstract: A light guide plate has a back face provided with a first light diffusion pattern which tends to get denser according to an increasing distance from a primary light source. The light guide plate has an emission face provided with a second light diffusion pattern covering rate of is the largest at an approximately center portion (particular partial region) of the emission face. The first and second light diffusion patterns consist of a great number of fine light diffusion elements, respectively. Each fine light diffusion element of the second light diffusion pattern has a smaller size as compared with that of the first light diffusion pattern. The emission face of the light guide plate has an effective emission area to provide an emission light which is supplied to an LCD panel or other objects to be illuminated, via a light control member such as prism sheet. The approximately center portion and/or other one or more particular partial regions in the emission face show an intentionally heightened brightness.Type: ApplicationFiled: February 1, 2002Publication date: January 9, 2003Inventors: Kazuo Suzuki, Kazumasa Ohsumi
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Publication number: 20020039289Abstract: A vehicular headlamp includes a bulb with two filaments disposed one behind the other, a bulb internal shade provided in the vicinity of the front filament, and a reflector for reflecting light produced by the filaments. The reflector includes an upper part and a lower part. A bulb external shade is provided outside the bulb. The bulb internal shade prevents light produced by the front filament from entering into the lower reflector part, and the bulb external shade prevents light produced by the rear filament from entering into the upper reflector part.Type: ApplicationFiled: September 20, 2001Publication date: April 4, 2002Inventor: Toshiyuki Kinouchi
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Patent number: 6068391Abstract: A motor vehicle headlamp has a lamp with two filaments, one of which has a masking screen so as to form a chopped or dipped beam, while the other filament is unmasked so as to produce an unchopped beam. The headlight also includes a reflector and a smooth cover lens.The reflector has an upper zone extending between two radial half planes which are inclined by the same amount below the horizontal, this upper zone being larger than the part of the reflector which is exposed to the first filament; the reflector has two lateral sub-zones with base surfaces which are symmetrical with respect to the vertical, with striations being formed by projection on the base surface, the striations being configured according to the particular type of chopped beam required. The reflector also has a second zone having a surface for cooperation with the second filament only, so as to form a wide portion of the beam and extending at least partly above the cut-off of the dipped beam.Type: GrantFiled: February 19, 1998Date of Patent: May 30, 2000Assignee: Valeo VisionInventors: Denis Saladin, Jean-Marie Brel
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Patent number: 5857764Abstract: To prolong the life of a vehicle light bulb by securing the legs of the dipped beam filament by forming a hole in cupped shield, fixing one leg directly to common lead by passing this leg through the hole, and fixing the other leg directly to lead. If the shield vibrates as shown by circled arrows 2 and 2, this vibration is not transmitted to the dipped beam filament. Accordingly, the life of dipped beam filament can be further prolonged.Type: GrantFiled: June 6, 1997Date of Patent: January 12, 1999Assignee: Honda Giken Kogyo Kabushiki KaishaInventors: Hajime Tabata, Toru Hasegawa
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Patent number: 5725298Abstract: To provide for improved light distribution of a vehicular headlight furning both depressed-beam and high-beam illumination, a shadow cap (9, 25) partly surrounds a main light source, typically filaments of halogen incandescent lamp, located in a reflector (2) which has two segments (14, 15) of different contours. The first one (14) of the reflector segments is optically associated with the main filament furnishing depressed-beam illumination, and this segment has a free-formed surface reflection contour. A second segment of the reflector is optically associated with an auxiliary filament (8, 18). The shadow cap (9, 25) provides a shadow angle of between 100.degree. and 140.degree. with respect to light emitted from the main filament (7) to define a shadow zone (12) and a light zone (13) on the reflector. The shadow cap is shaped and positioned with respect to the auxiliary filament (8, 18) such that the auxiliary filament is located within the shadow zone (12).Type: GrantFiled: February 20, 1997Date of Patent: March 10, 1998Assignees: Hella KG Hueck & Co., Patent-Treuhand-Gesellschaft f. elektrische Gluehlampen mbHInventors: Franz-Josef Kalze, Wolfgang Peitz, Rolf Kiesel
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Patent number: 5544021Abstract: A motor vehicle headlight of the type comprising a two-filament lamp in which a first filament is provided with a cup so as to allow light to pass over a given angular extent only, and in which a second filament has no such cup, the headlight further comprising a closure glass and a reflector suitable for co-operating with one or the other of the two filaments respectively for generating an anti-fog beam and a main beam. According to the invention, the reflector comprises a reflecting surface having a first zone whose extent corresponds at least approximately to said given angular extent and whose shape is such that it generates, on its own, images of the first filament in which all of the points of the images lie below a cutoff that extends generally horizontally, thereby forming the anti-fog beam, and a second zone that runs continuously into the first zone, said first and second zones co-operating with the second filament to form the main beam.Type: GrantFiled: July 29, 1993Date of Patent: August 6, 1996Assignee: Valeo VisionInventors: Fran.cedilla.ois Lopez, Etienne Pauty, Norbert Brun
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Patent number: 5517389Abstract: The lamp assembly including a reflector having two or more reflective surfaces, a light source and an electrochromic means positioned between the light source and at least one reflective surface. Each reflective surface directs light in a different direction. The electrochromic means is capable of blocking light from exiting the lamp assembly from at least one direction.Type: GrantFiled: April 11, 1994Date of Patent: May 14, 1996Assignee: Ford Motor CompanyInventor: Christopher A. Myers
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Patent number: 5213406Abstract: A headlamp for a power vehicle comprises a reflector having an apex, a light source arranged in the apex of the reflector, and a dimming device which is formed so that in a position for high beam it allows light from the light source to reach a lower reflector region or allows the light to exit the same, and in a position for low beam it keeps away light from said light source from the lower reflector region or blocks light reflected from the lower reflector region. The light source is formed as a gas discharge lamp with an axial light arc, an upper reflector region is formed for producing a light distribution for low beam while the lower reflector region is formed for producing a light distribution for high beam.Type: GrantFiled: December 28, 1990Date of Patent: May 25, 1993Assignee: Robert Bosch GmbHInventors: Rainer Neumann, Gerhard Lindae, Kay Kolberg, Karl-Heinrich Preis, Thomas Weigold
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Patent number: 5111368Abstract: A vehicle headlamp having a paraboloidal reflector and an electric lighting bulb mounted in a lighting chamber. The paraboloidal reflector is formed to include a pair of vertically opposed flat portions extending therefrom toward a cover lens. The bulb has a vitreous envelope containing a primary filament for providing an upper beam, and an auxiliary filament for providing a lower beam. A shade is disposed between the bulb and the upper flat portion of the reflector in order to prevent the bulb from directly irradiating the upper flat portion of the reflector. Characteristically, the shade is inclined with respect to the optical axis of the headlamp, instead of being disposed parallel thereto, so as to extend in a direction in which the rays of light emitted by the axuillary filament of the bulb travels after having been reflected by part of the paraboliodal reflector, in order to make utmost use of the light rays emitted by the auxilliary filament for providing the lower beam.Type: GrantFiled: July 30, 1991Date of Patent: May 5, 1992Assignee: Koito Manufacturing Co., Ltd.Inventors: Takanori Suzuki, Tatsuhiko Harada
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Patent number: 5089942Abstract: A head lamp unit includes two lighting fixtures, each of which includes a running beam filament and a passing beam filament, for selectively producing a running light beam and a passing light beam. The light distribution characteristic of the passing light beam of one of the lighting fixtures is arranged to be symmetrical to the left and right, whereas the light distribution characteristic of the passing light beam of the other lighting fixture is arranged to be asymmetrical to the left and right, to thereby provide an improved passing light beam.Type: GrantFiled: April 11, 1991Date of Patent: February 18, 1992Assignee: Stanley Electric Co., Ltd.Inventor: Tsuneo Sekiguchi
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Patent number: 5084806Abstract: Disclosed is a light emitting display device comprising: a stem member comprising a lidless container having a plural number of chambers divided by partially chipped walls, filaments and their support posts arranged in each chamber; and a lid panel having transparent windows and light-shielding face. The lid panel is airtightly fixed on the upper side of the container so that the light-shielding face covers the upper portions of the chipped parts of the walls. The inside of the device is made vacuum.Type: GrantFiled: October 18, 1990Date of Patent: January 28, 1992Inventor: Kiyoshi Nagai
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Patent number: 4945453Abstract: Herein disclosed is a vehicular headlamp. The headlamp comprises a concave light reflector which includes upper and lower light reflecting surfaces each being of a paraboloid of revolution. The upper and lower light reflecting surfaces have respective upper and lower rotation axes which extend forward in parallel with each other and have respective focuses on the axes. The respective focuses are located at respective positions where an imaginary line perpendicular to the rotation axes intersects the same. A lens covers an opening of the concave light reflector. A first light source is positioned at the focus of the lower light reflecting surface, and a second light source is positioned just above the focus of the upper light reflecting surface.Type: GrantFiled: August 11, 1989Date of Patent: July 31, 1990Assignee: Koito Manufacturing Co., Ltd.Inventors: Hiroyuki Serizawa, Akio Mochizuki
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Patent number: 4862329Abstract: Herein disclosed is a vehicular headlamp which comprises a concave light reflector having a focus and a light ray converging point, the converging point being positioned in front of the focus with respect to the reflector; a first light source located on the focus; a second light source located behind the focus; a cover member covering front and lower portions of the first light source; a first shade member positioned in the vicinity of the converging point of the light reflector, the first shade member having an upper edge positioned near an optical axis of the light reflector; a second shade member located in the vicinity of a subconverging point at which light rays produced by the second light source and reflected by the light reflector are converged; and a converging lens arranged in front of the first shade member in such a manner that a focus of the lens is positioned on the upper edge of the first shade member.Type: GrantFiled: March 9, 1989Date of Patent: August 29, 1989Assignee: Koito Seisakusho Co., Ltd.Inventor: Naohi Nino
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Patent number: 4839779Abstract: A light apparatus has a first source of light, a first surface for causing light transmitted therethrough from the first source to have a first color, a second source of light, a second surface for causing light transmitted therethrough from the second source to have a second color, and a coating on the second surface to prevent light from the first source that is transmitted through the first surface from passing through the second surface.Type: GrantFiled: December 8, 1987Date of Patent: June 13, 1989Assignee: Quintech CorporationInventor: George C. Kasboske
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Patent number: 4769748Abstract: A lamp combination wherein the reflector's reflective surface is of a shape specifically designed to compensate for the refractive effects produced by the thickness of the glass walls of the light source's envelope structure located within (surrounded by) the reflector. Optimum light output is thus assured. A method of making such a lamp is also disclosed.Type: GrantFiled: October 1, 1987Date of Patent: September 6, 1988Assignee: GTE Products CorporationInventors: Robert E. Levin, George J. English
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Patent number: 4713736Abstract: According to the invention, a single headlamp is provided to selectively project a first color light, a second color light or a desired blend thereof. Preferably, a clear bulb contains a second bulb with a yellow light transmitting surface. Each bulb has a filament light source which can be selectively powered to produce white and yellow light, with the latter being effective for penetration of fog, dust, smoke, etc. with the lamp used on a moving vehicle.Type: GrantFiled: January 30, 1987Date of Patent: December 15, 1987Assignee: Quintech CorporationInventor: George C. Kasboske
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Patent number: 4644452Abstract: According to the invention, a single headlamp is provided to selectively project a first color light, a second color light or a desired blend thereof. The light color is selected by powering first and second filaments that project light through different portions of a bulb. One bulb portion is preferably clear and the other yellow so that the headlamp can be used either as a high intensity light under normal conditions or as a penetrating light in fog, dust, snow, rain and/or smoke.Type: GrantFiled: October 25, 1985Date of Patent: February 17, 1987Inventor: George C. Kasboske
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Patent number: 4638408Abstract: An automobile headlight and fog light combination having a generally parabolic reflector and a transparent lens with a segment along the bottom of the lens tinted to function as a fog light for any light transmitted therethrough, said headlight have a first filament for a high bright beam, a second filament for a low dim beam and a third filament for a fog light beam, substantially all the light from said third filament passing through said tinted segment of said lens.Type: GrantFiled: June 28, 1984Date of Patent: January 20, 1987Inventor: Aubrey D. Wetherington
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Patent number: 4523262Abstract: A headlight for an automotive vehicle has a reflector formed substantially in a semicircular shape above the optical axis of the headlight so as to serve as its reflective portion and an upper portion of the reflector extends forwardly from the reflective portion to serve as a light shielding portion. Another light shielding portion is provided below a lamp bulb, which is included in the headlight, and is arranged substantially in parallel relation with the optical axis. An upper lens element of the lens of the headlight has a cross section determined in such a manner that the rays of light incident upon the upper lens element from the reflective portion of the reflector are downwardly refracted, and the vertical dimension of a lower lens element of the lens of the headlight is reduced as compared with a conventional headlight.Type: GrantFiled: September 29, 1982Date of Patent: June 11, 1985Assignee: Toyota Jidosha Kabushiki KaishaInventor: Hiroaki Shinkai
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Patent number: 4276583Abstract: The present invention relates to a headlight for automobile, with rectangular front opening, of the type comprising a reflector in the axis of which are disposed a light source for dipped-beam illumination cooperating with cut-off means, and a light source for far-beam illumination, a horizontal upper side and a horizontal lower side intersecting the reflector to delimit the rectangular opening of the headlight, wherein the upper side is substantially closer to the optical axis than the lower side, with the result that, for a total, unchanged height of the headlight, the zone of the mirror furnishing the dipped-beam illumination is reduced, this allowing an optimum compromise for far-beam and dipped-beam illumination.Type: GrantFiled: May 11, 1978Date of Patent: June 30, 1981Assignee: Cibie ProjecteursInventor: Hector Fratty
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Patent number: 4225904Abstract: A fog filter for automobile headlights consists of a lens cover in the form of a sheet of smooth transparent plastic material, preferably of an amber color, and which has a circular outline and a diameter corresponding to that of the standard sealed beam automobile lens. The lens cover is secured at its periphery to a rim portion having formed integrally therewith a continuous magnet which cooperates with the metal rim of the automobile headlight to secure the filter or lens cover in place. Two types of lens covers or filters are disclosed. One is a complete filter or lens cover for the two high-beam lenses of a double headlight system wherein the filter of lens cover is amber or other suitable color. The other form of filter or lens cover is for single headlights having both the high-beam and low-beam in the same lamp wherein the filter or lens cover is clear in the lower half thereof and amber colored or the like in the upper half.Type: GrantFiled: May 18, 1978Date of Patent: September 30, 1980Inventor: Bill Linder
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Patent number: 4225903Abstract: A motor vehicle headlight with a reflector consisting of two partial paraboloids arranged one above the other, which have at least approximately a common axis and of which the focus of the upper partial paraboloid is located closer to the apeces of the two partial paraboloids; a first filament for the low beam is located between the two foci of the two partial paraboloids while a second filament for the high beam is located in the focus of the lower partial paraboloid; the light emitted by the high-beam filament in the direction toward the upper partial paraboloid is shielded by a covering arranged on top of the high beam filament.Type: GrantFiled: May 10, 1978Date of Patent: September 30, 1980Assignee: Bayerische Motoren Werke AktiengesellschaftInventor: Konrad Buchleitner