Plural Separate Sections With Complex Surfaces Patents (Class 362/522)
  • Patent number: 6543923
    Abstract: A vehicle lamp such as a rear combination lamp comprising: a reflex reflector lens that is fitted in a front lens of the lamp so as to reflect the light from the outside the vehicle lamp back to the outside, and a light reflector that is formed in the front lens so as to face the reflex reflector lens and to entirely reflect the light from a light source toward the light source. The vehicle reflex reflector lens is made of a material that has a lower heat resistance than the front lens.
    Type: Grant
    Filed: August 1, 2001
    Date of Patent: April 8, 2003
    Assignee: Koito Manufacturing Co., Ltd.
    Inventor: Hiroyuki Tamai
  • Patent number: 6543922
    Abstract: A lane mark irradiation lamp forming a pair of light distribution patterns on left and right sides of the road surface ahead of a vehicle. The light distribution patterns are formed so as to extend along the lane marks provided on the road, and the luminous intensity distribution of the light distribution patterns in lateral direction in a first angle position that is in a downward direction at a predetermined angle with respect to a longitudinal axis of the lamp is set so as to have peaks on both sides of such a longitudinal axis.
    Type: Grant
    Filed: March 23, 2001
    Date of Patent: April 8, 2003
    Assignee: Koito Manufacturing Co., Ltd.
    Inventors: Motohiro Komatsu, Shoji Kobayashi, Hiroyuki Ishida
  • Patent number: 6527423
    Abstract: A headlight allowing easy adjustment of a delicate light distribution pattern during manufacturing is provided. The headlight includes a light source, a reflector surrounding the light source from its backside to reflect light incident from the light source frontward, and a front lens located in front of the light source and the reflector. The front lens is provided with at least two portions different in light transmission characteristic from each other.
    Type: Grant
    Filed: July 20, 2001
    Date of Patent: March 4, 2003
    Assignee: Cateye Co., Ltd.
    Inventor: Masao Shoji
  • Publication number: 20030016542
    Abstract: A mirror assembly security system for a vehicle includes an exterior mirror assembly and a light module removably positioned within the exterior mirror housing. The light module is moisture impervious and includes an enclosure, a light-emitting opening in the enclosure, a light source in the enclosure radiating light through the light-emitting opening, and a cover for the light-emitting opening adapted to direct the light from the light source to an area adjacent the vehicle to create a security area. The light source may be supported by a pair of electrical contacts provided on the inner surface of the enclosure. The enclosure wall supporting the electrical contacts is preferably flexible, in order to allow the light source to be captured by the contacts. Attachment of the cover adds rigidity to the enclosure to prevent further flexure of the enclosure wall in order to firmly retain the light source.
    Type: Application
    Filed: September 20, 2002
    Publication date: January 23, 2003
    Applicant: Donnelly Corporation
    Inventors: Todd W. Pastrick, Mark R. Litke, David K. Willmore, Rick Mousseau
  • Patent number: 6494602
    Abstract: An exterior rearview mirror assembly security system for a vehicle includes an exterior mirror assembly with a security light assembly which projects a pattern of light from the exterior mirror assembly on a ground area adjacent a door of the vehicle in order to create a lighted security zone in the area. The security system further includes a control, which is responsive to approach by a person to the vehicle and actuates the security light assembly to generate the pattern of light from the exterior mirror assembly in order to provide the lighted security zone adjacent the side of the vehicle equipped with the exterior rearview mirror assembly.
    Type: Grant
    Filed: September 25, 2001
    Date of Patent: December 17, 2002
    Inventors: Todd W. Pastrick, Mark R. Litke, David K. Willmore, Rick Mousseau
  • Publication number: 20020159272
    Abstract: A lens (2) disposed in front of a lamp housing (11) has a light transmitting portion (2a) thereof zoned at the rear side into a central section (X) and lateral sections (Y) at both sides thereof, the central and lateral sections (X, Y) being additionally divided into blocks (A, B, C, D, E, F, G), respectively, and prism elements (p) in the blocks are configured so that those (p) in the central section (X) control reflected light from a reflector (12) as reference light, and those (p) in the lateral sections (Y) control direct light from a light source bulb (10) as reference light, thereby providing illumination ranges (J, K) within a light distribution range (LDR) conforming to a light distribution specification (S).
    Type: Application
    Filed: February 22, 2002
    Publication date: October 31, 2002
    Applicant: ICHIKOH INDUSTRIES, LTD.
    Inventor: Kiyohiro Akiyama
  • Patent number: 6471380
    Abstract: A blink lamp is arranged on a comer of a motor vehicle, at a side next to a headlight, and has a housing with a light-transmissive cover panel covering the housing. A prismatic light element is arranged inside the blink lamp on a side adjacent to the headlight and adjacent to the cover panel. The prismatic light element bends beams of light coming directly from the light source toward the cover panel and toward the headlight.
    Type: Grant
    Filed: August 25, 2000
    Date of Patent: October 29, 2002
    Assignee: Hella KG Hueck & Co.
    Inventors: Klaus Henneboehle, Martin Muegge
  • Publication number: 20020149944
    Abstract: An optical unit for an aircraft warning light comprising an array of LEDs, the unit comprising a transparent plastics molded body having first and second opposing faces and being provided with optical means on its first and optionally also its second face to propagate fractions of light emitted from the LEDs in selected directions in accordance with a predetermined angular distribution. The optical means may, for example, take the form of discrete convex lenses, cylindrical aspherical lenses, prisms or total internal reflection structures and combinations thereof selected according to the emission requirements for the warning light. The optical unit will therefore differ depending on whether it is for use on a navigation light or an anti-collision light and will generally be spaced at a predetermined, fixed distance from the LED array.
    Type: Application
    Filed: November 13, 2001
    Publication date: October 17, 2002
    Inventors: Anthony William Worsdell, Paul Denton Curry
  • Publication number: 20020093829
    Abstract: The present invention relates to a component for a motor-vehicle lighting or indicator device. According to the invention, it consists of a transparent material within which light-diffusion foci consisting of local discontinuities are situated only at predetermined locations in order to diffuse the light emitted by a light source associated with the lighting or indicator device.
    Type: Application
    Filed: December 27, 2001
    Publication date: July 18, 2002
    Inventors: Ghislaine Pinson, Regis Duplessy
  • Patent number: 6416210
    Abstract: An upwardly deflecting prism lens element is formed horizontally across a front-side surface of a focusing lens. The light-dark ratio of a borderline in a low-beam luminous intensity distribution pattern is reduced by upwardly deflecting a light beam, which is transmitted through the focusing lens and illuminated forwardly from the lens element. Chromatic aberration is not produced by the light beam transmitted through the lens element and radiated in the forward direction.
    Type: Grant
    Filed: July 12, 2000
    Date of Patent: July 9, 2002
    Assignee: Koito Manufacturing Co., Ltd.
    Inventor: Naoki Uchida
  • Patent number: 6416209
    Abstract: A vehicle puddle light assembly is provided in an opening formed in a body panel of a vehicle. A socket including a housing and at least one contact coupled to the housing is disposed within the opening and coupled to the body panel adjacent the opening. A lamp is coupled to the contact within the housing. A lens is coupled to the socket outboard of the lamp. The lens has an opaque upper portion and a transmissive lower portion having a plurality of facets formed therein for projecting light from the assembly and a predominantly downward and outboard direction. The housing includes a reflective upper portion for directing radiation from the lamp toward the transmissive portion of the lens and a reflective lower portion for directing radiation from the lamp toward a reflective surface of the lens formed inboard of the opaque upper portion. The radiation is then redirected toward the reflective upper portion of the housing and then toward the transmissive portion of the lens.
    Type: Grant
    Filed: August 10, 2000
    Date of Patent: July 9, 2002
    Assignee: DaimlerChrysler Corporation
    Inventor: Glenn W Abbott
  • Publication number: 20020085384
    Abstract: In a lighting system for motor vehicles, light from a HID or MPXL lamp is collected by a collector which surrounds the light source at least partly and is guided further to a separator of optical waveguide material, which separator forms a desired light beam via a specially shaped light outlet surface so as to obtain as high as possible a light output.
    Type: Application
    Filed: October 23, 2001
    Publication date: July 4, 2002
    Inventor: Helmut Tiesler-Wittig
  • Patent number: 6409369
    Abstract: A motor vehicle headlight comprises a single light source cooperating with fixed optical means to produce a fixed beam which is generally spread widthwise and which is such as to perform two functions selectively, namely to enhance a dipped passing beam produced by another headlight and to produce a further beam, such as a foglight beam, with a specific top cut-off. The beam comprises at least two regions which are bounded by at least two portions of the top cut-off line, these portions being arranged at different levels. The invention also relates to a pair of headlights of this type, one on the right of the vehicle and one on the left.
    Type: Grant
    Filed: April 27, 2000
    Date of Patent: June 25, 2002
    Assignee: Valeo Vision
    Inventor: Antoine De Lamberterie
  • Patent number: 6409370
    Abstract: A vehicular lamp lens having integrated lens members with a boundary therebetween. The front surface of the boundary portion side of at least one of the lens members is displaced in the rearward direction as the surface becomes closer to the boundary.
    Type: Grant
    Filed: February 22, 2000
    Date of Patent: June 25, 2002
    Assignee: Koito Manufacturing Co., Ltd.
    Inventors: Kazuo Akiyama, Fujihiko Sugiyama, Masahiko Nishizaki
  • Patent number: 6382822
    Abstract: A vehicular lamp having an inner lens is described. In an implementation, an annular wall 18A surrounding an optic axis Ax of a reflector 14 is formed on the inner lens 18 disposed between am outer lens 16 and a reflecting surface 14a of the reflector 14. The inner lens 18 is divided by the annular wall 18A into an internal zone 18B and an external zone 18C which may be different from each other in convex-concave lens shape. The internal zone 18B may be formed of a translucent lens, and a plurality of grid-type lens elements 18Cs may be formed over the entire rear surface of the external zone 18C. Thus, an observer viewing the interior of a lighting chamber from a location in front of the lamp will see that the internal zone 18B and the external zone 18C, which are divided by the annular wall 18A, are significantly different. The configuration of elements provides a vehicular lamp that is visually attractive.
    Type: Grant
    Filed: May 3, 2000
    Date of Patent: May 7, 2002
    Assignee: Koito Manufacturing Co., Ltd.
    Inventors: Gen Maekawa, Nobutaka Tezuka
  • Patent number: 6364514
    Abstract: A vehicular lamp fixture, such as an indicator lamp, having an improved external appearance and originality. Diffusion lens elements are arranged at predetermined positions offset from a lamp fixture optical axis of an inner lens. The lens element optical axes of the diffusion lens elements pass through a boundary that divides the reflective surface of a reflector into an inner peripheral area and an outer peripheral area, each of which approaches a paraboloid of revolution centered on the lamp fixture optical axis. The reflective surface is formed as a curved surface curving forward of the paraboloid of revolution P. Light from a filament is irradiated as convergent light in a radial direction onto the diffusion lens elements, causing the diffusion lens elements to shine brightly and causing an image of the filament to appear reflected at central positions of the diffusion lens elements when seen from the front of the lamp fixture.
    Type: Grant
    Filed: November 30, 2000
    Date of Patent: April 2, 2002
    Assignee: Koito Manufacturing Co., Ltd.
    Inventor: Kazunori Natsume
  • Publication number: 20020034080
    Abstract: A vehicle lamp such as a rear combination lamp comprising: a reflex reflector lens that is fitted in a front lens of the lamp so as to reflect the light from the outside the vehicle lamp back to the outside, and a light reflector that is formed in the front lens so as to face the reflex reflector lens and to entirely reflect the light from a light source toward the light source. The vehicle reflex reflector lens is made of a material that has a lower heat resistance than the front lens.
    Type: Application
    Filed: August 1, 2001
    Publication date: March 21, 2002
    Applicant: KOITO MANUFACTURING CO., LTD.
    Inventor: Hiroyuki Tamai
  • Patent number: 6354718
    Abstract: A vehicular headlamp utilizing a light source bulb of the H4 type and which provides a low-beam light distribution pattern which makes it easy for the driver to drive and reduces the possibility of oncoming drivers being dazzled by glare. A light source bulb is securely supported by a reflector so that left and right upper edges of a shade are located at substantially the same height and an axis of a filament is upwardly offset from an optical axis of the reflector at a predetermined angle. A reflecting surface of the reflector is provided with a downward deflective reflection zone which downwardly deflects and reflects the light that has traveled from the filament past the right upper edge of the shade and impinged on a traveling-lane-side reflection zone.
    Type: Grant
    Filed: May 19, 2000
    Date of Patent: March 12, 2002
    Assignee: Koito Manufacturing Co., Ltd.
    Inventors: Takayuki Iwaki, Kenichi Takada
  • Patent number: 6352359
    Abstract: A vehicle light assembly includes a lens cover from which light emanates. A light shaping surface microstructure is carried in a portion of the light assembly. The microstructure can be incorporated into many different surfaces of the light assembly such as a surface of the lens cover, a surface of a macro-optical structure on the lens cover, or on a reflective surface of the assembly. The microstructure homogenizes and directs light emanating from the light assembly via reflection or transmission to provide a smooth, continuous pattern of light having a predetermined distribution shape or envelope and a predetermined directionality.
    Type: Grant
    Filed: August 25, 1998
    Date of Patent: March 5, 2002
    Assignee: Physical Optics Corporation
    Inventors: Rick L. Shie, Jeffrey A. Laine, Gajendra D. Savant
  • Publication number: 20020018349
    Abstract: A vehicle lamp includes: a lamp chamber defined by a lamp body and a colorless transparent front lens; a light source disposed in the lamp chamber; and a printed sheet disposed inwardly of the front lens. The printed sheet includes a colorless transparent sheet main body of synthetic resin having a pattern consisting of a predetermined colored transparent layer printed on an internal surface of the front lens. The colored transparent layer and a convex three-dimensional colorless transparent layer are formed in a laminated fashion as a lower layer and an upper layer, respectively, on an external surface of the sheet main body. A plating-like printed layer and a light shielding layer are formed in a laminated fashion as a lower layer and an upper layer, respectively, on an internal surface of the sheet main body at a location matching the location of the convex three-dimensional colorless transparent layer.
    Type: Application
    Filed: July 31, 2001
    Publication date: February 14, 2002
    Inventor: Shinji Aikawa
  • Patent number: 6340239
    Abstract: An indicator light comprises a source, an optical plate adapted to straighten out the incident light towards an average direction generally parallel to an optical axis, and a flux-distributing and recuperating cup interposed between the source and the plate in order to distribute the light over the inner surface of the plate. According to the invention, the optical plate has a height and a width of the same order of magnitude and possesses optical configurations having varied coefficients of transmission of the light, and the cup provides a given distribution of the light, both in the horizontal direction and in the vertical direction, which takes account of said coefficients. As a result, an illumination is obtained at the exit from said plate which is essentially constant in the horizontal direction as well as in the vertical direction.
    Type: Grant
    Filed: March 1, 2000
    Date of Patent: January 22, 2002
    Assignee: Valeo Vision
    Inventors: Vincent Godbillon, Jean Claude Gasquet
  • Patent number: 6327095
    Abstract: To provide a vehicle lamp having a high quality lens and a method for manufacturing the same and make it possible to reliably separate a pre-molded lens member while being securely held in the movable die during composite lens molding in a multi-color molding process.
    Type: Grant
    Filed: March 8, 2000
    Date of Patent: December 4, 2001
    Assignee: Koito Manufacturing Co., Ltd.
    Inventors: Hiroyuki Tamai, Hideo Taki
  • Patent number: 6305830
    Abstract: Lighting optics is provided for lights of vehicles, preferably motor vehicles. The lighting optics has a light-refracting lens element that is disposed in the path of rays of at least one light. The lens element has at least one aperture through which a portion of the rays of the light passes without undergoing refraction.
    Type: Grant
    Filed: November 8, 1999
    Date of Patent: October 23, 2001
    Assignee: Reitter & Schefenacker GmbH & Co.
    Inventors: Hubert Zwick, Helfried Sandig
  • Patent number: 6299333
    Abstract: An exterior rearview mirror assembly security system for a vehicle includes an exterior mirror assembly. The exterior mirror assembly includes a security light assembly, which projects a pattern of light from the assembly on an area adjacent a door of the vehicle in order to create a lighted security zone in the area. The security light assembly includes an enclosure, with a light-transmitting opening in the enclosure, and a light source for radiating light through the light-transmitting opening. The security light assembly also includes a cover for the light-transmitting opening, which comprises an optical lens having at least one non-planar optical surface.
    Type: Grant
    Filed: August 18, 2000
    Date of Patent: October 9, 2001
    Assignee: Donnelly Corporation
    Inventors: Todd W. Pastrick, Mark R. Litke, David K. Willmore, Rick Mousseau
  • Publication number: 20010026457
    Abstract: A vehicle lamp can include a tube-like lamp element that has an aperture, a reflector having a focus located approximately at the aperture, and a front lens. The lamp can be disposed in a vehicle body space that has a small width from the front view and a small depth from a side view of the vehicle body. A blind or shade is not necessary to cover non-aesthetic portions of the lamp. The lamp can be tube-like in shape and can include an optical system that has at least two ellipse group reflecting surfaces that are combined to form a multi-reflex optical system. An aperture can be formed by the reflecting surfaces to allow light rays to be guided outside of the lamp. A light source is preferably located on a common first focus of the at least two ellipse group reflecting surfaces. One of the ellipse group reflecting surfaces can have a longer focal distance than, and a different longitudinal direction from, those of other ellipse group reflecting surface(s).
    Type: Application
    Filed: March 26, 2001
    Publication date: October 4, 2001
    Applicant: Stanley Electric Co., Ltd.
    Inventors: Hiroo Oyama, Takashi Akutagawa, Yoshifumi Kawaguchi, Go Adachi
  • Patent number: 6296382
    Abstract: A multi-chamber lamp has a lamp housing with a plurality of reflectors. A closure pane is provided on the lamp housing. An intermediate pane, located between the reflectors and the closure pane extends over an entire light emergence plane of at least one reflector. The closure pane as well as the intermediate pane are at least partially free of optical function. The intermediate pane supports a shield device for the light source associated with the at least one reflector, which is surrounded by an optics-free area. A cover apparatus completely encompasses the at least one reflector provided with the intermediate pane and covers also a peripheral rim of the intermediate pane as well as shields an interior of the lamp housing from view from the outside.
    Type: Grant
    Filed: May 6, 1999
    Date of Patent: October 2, 2001
    Assignee: Hella KG Hueck & Co.
    Inventor: Antonius Hamelbeck
  • Patent number: 6280064
    Abstract: The reflective surface of a reflector 16 is divided through steps into a plurality of vertically elongated reflective surface elements. In each of those reflective surface elements, the light incidence section to which the output light of a light source bulb is applied is made up a convex cylindrical curved surface and a concave cylindrical curved surface which are arranged substantially in parallel with the step adjacent to the light incidence section. Accordingly, when the lamp is turned on, and the reflector is observed from the front, the light incidence sections function as follows; that is, the apex portions of the cylindrical curves surfaces look glittered as bright sections. Therefore, the reflective surface looks more sparkling.
    Type: Grant
    Filed: October 14, 1998
    Date of Patent: August 28, 2001
    Assignee: Koito Manufacturing Co., Ltd.
    Inventors: Osamu Sato, Kazunori Natsume
  • Patent number: 6273591
    Abstract: An indicator light for a motor vehicle has a point source, an intermediate screen which receives the light directly from the source, and a cover glass outside the screen. The intermediate screen comprises a series of optical cells, each of which has, on an internal face, a curved surface for straightening and spreading the light. Each cell further has, on an outer face, a set of at least two flat facets which are oblique with respect to a plane of the intermediate screen.
    Type: Grant
    Filed: June 30, 1998
    Date of Patent: August 14, 2001
    Assignee: Valeo Vision
    Inventor: Pierre Albou
  • Patent number: 6273596
    Abstract: A grid defining illumination cells having areas to pass light from a source for use in generation of a lines, wherein the grid is defined by first lines extending about one axis defined by the source, and second lines emanating from the axis to intersect first lines, each cell having four edges defined by successive of first lines and successive of second lines, the cells having one of the following: i) equal areas ii) areas that increase in direction away from the source.
    Type: Grant
    Filed: May 20, 1999
    Date of Patent: August 14, 2001
    Assignee: Teledyne Lighting and Display Products, Inc.
    Inventor: William A. Parkyn, Jr.
  • Patent number: 6269660
    Abstract: A lamp for vehicle that includes a light source, a housing, a reflector and a lens is disclosed. The lens is made by the process that includes the steps of (a) assuming an imaginary plane with a cross hatching pattern made of crossing groups of plural lines disposed in parallel at a constant pitch, (b) deforming the imaginary plane by a desired shape consisting of a convex surface, a concave surface or a combination of both surfaces, so that the cross hatching pattern is deformed into a process surface, and (c) processing a lens cut in accordance with the cross hatching pattern when the process surface is orthographically projected onto the lens surface. The deformation given to the imaginary plane is performed so that the maximum pitch of the cross hatching pattern orthographically projected onto the lens surface is 1.5 times or more and 20 times or less the minimum pitch. The lens cut may have curvatures of the same diffusion coefficient regardless of the pitch of the cross hatching pattern.
    Type: Grant
    Filed: April 16, 1999
    Date of Patent: August 7, 2001
    Assignee: Stanley Electric Co., Ltd.
    Inventors: Toshiyuki Kondo, Toshio Miyokawa
  • Patent number: 6250777
    Abstract: A double-focus lens is disclosed in which double-focus lens cuts (for example, cuts in which elements of the lens cuts formed on one of the surfaces of the lens include convex cuts in a first direction and concave cuts in the direction substantially perpendicular to the first direction) are formed on at least a portion of the lens. A vehicular lamp device can be constructed using the double-focus lens as an outer lens. Accordingly, a vehicular lamp device with a feeling of three-dimensional depth can be realized by using a lens that forms focal points in two locations, i.e., oil the front side of the lens and on the back side of the lens, without sacrificing light distribution characteristics.
    Type: Grant
    Filed: September 17, 1999
    Date of Patent: June 26, 2001
    Assignee: Stanley Electric Co., Ltd.
    Inventor: Toshihiro Aoyama
  • Publication number: 20010001596
    Abstract: A vehicle lamp having a hollow body lens unit constructed by integrally forming a lamp body and a front lens which constitute a lamp chamber, a light source provided in the body lens unit, and a diffusion step such as a cylindrical step having step elements, each of which has constant directivity, the diffusion step being provided on the outer surface of the lens portion of the body lens unit. The step elements of the diffusion step on the outer surface of the lens portion are lined up in a predetermined direction and each have directivity, so that the mud and dust do not easily stick to each step element.
    Type: Application
    Filed: April 1, 1999
    Publication date: May 24, 2001
    Inventor: TAKAYOSHI GOTO
  • Patent number: 6174079
    Abstract: A lighting module for a motor vehicle headlight, in which light from a light source is received by the input end of a light guide having a plurality of oblique facets, which are reflective by total reflection and cooperating with lenses. The light guide comprises a set of transparent strips stacked together, and the module includes a reference member comprising a first portion which defines a horizontal reference plane, and a second portion which defines a vertical reference plane. The stacked transparent strips are abutted against these two portions of the reference member in a predetermined position on the longitudinal axis of the light guide, so that their facets will cooperate with the lenses to project in the emission direction images corresponding to the facets.
    Type: Grant
    Filed: July 21, 1998
    Date of Patent: January 16, 2001
    Assignee: Valeo Vision
    Inventor: Philippe Buard
  • Patent number: 6161952
    Abstract: A headlight for a vehicle operating in accordance with the projection principle, the headlight has a reflector, a light source, a lens through which a light reflected by the reflector passes, at least one partially light-permeable element which surrounds the lens at least over a part of its periphery, so that light which is emitted by the light source and not engaged by the reflector passes through and is collected by the at least one element, wherein, the reflector and the lens being formed so that light which is reflected by the reflector and passes through the lens forms an upper bright-dark limit, the element being formed at least locally as a fresnel lens with ring-shaped optical profiles, and further optical profiles arranged at least in a part of a beam path of the light passing through the element and deviating the light so that it illuminates a region in front of the vehicle above the bright-dark limit formed by the light reflected by the reflector and passing through the lens.
    Type: Grant
    Filed: March 4, 1999
    Date of Patent: December 19, 2000
    Assignee: Robert Bosch GmbH
    Inventors: Kurt Schuster, Gerhard Weihing
  • Patent number: 6152589
    Abstract: There is provided a lamp comprising a light source, a horizontal double ellipsoidal reflector composed of two reflecting surface units joined horizontally in opposing relation to each other and each formed from a spheroid, and aspheric lenses. Each of the two reflecting surface units is formed by cutting, radially around the center axis of the light source, a portion from the spheroid having a first focal point located on the center axis and adjacent the light source and a second focal point located on a line passing through the first focal point and tilted appropriately from the light-source center axis such that the cut portion spans, around the center axis, a range of 5.degree. to 9.degree. in either vertical direction from a horizontal line. The aspheric lenses are provided horizontally to correspond to the respective second focal points of the reflecting surface units of the ellipsoidal reflector and converge reflected light beams from the respective reflecting surface units.
    Type: Grant
    Filed: May 26, 1999
    Date of Patent: November 28, 2000
    Assignee: Stanley Electric Co., Ltd.
    Inventors: Yoshifumi Kawaguchi, Takashi Futami, Teruo Koike
  • Patent number: 6149287
    Abstract: A mirror assembly security system for a vehicle includes an exterior mirror assembly and a light module removably positioned within the exterior mirror housing. The light module is moisture impervious and includes an enclosure, a light-emitting opening in the enclosure, a light source in the enclosure radiating light through the light-emitting opening, and a cover for the light-emitting opening adapted to direct the light from the light source to an area adjacent the vehicle to create a security area. The light source may be supported by a pair of electrical contacts provided on the inner surface of the enclosure. The enclosure wall supporting the electrical contacts is preferably flexible, in order to allow the light source to be captured by the contacts. Attachment of the cover adds rigidity to the enclosure to prevent further flexure of the enclosure wall in order to firmly retain the light source.
    Type: Grant
    Filed: October 19, 1998
    Date of Patent: November 21, 2000
    Assignee: Donnelly Corporation
    Inventors: Todd W. Pastrick, Mark R. Litke, David K. Willmore, Rick Mousseau
  • Patent number: 6146004
    Abstract: A vehicle lamp has a housing, a light-transmissive shield covering the housing that extends across a corner area of the vehicle, at least one lamp chamber in the housing in which a light source is positioned, and a Fresnel lens having concentrically arranged prism rings located between the light source and the light-transmissive shield adjacent to the light-transmissive shield in at least partial area. The Fresnel lens has at least one curved partial area, in order to make manufacturing as simple as possible while achieving an optimal illumination and maintaining proper light distribution. The Fresnel lens is comprised of a first curved partial area having a center of the concentrically arranged prism rings and a second partial area extending up to a side area of the lamp chamber. The partial areas have differing surface geometries and are separated from each other by vertical separating lines.
    Type: Grant
    Filed: July 13, 1998
    Date of Patent: November 14, 2000
    Assignee: Hella KG Hueck & Co.
    Inventors: Hubert Flottmeyer, Peter Leinwand
  • Patent number: 6139173
    Abstract: A vehicular lamp including a lamp body having a U-shaped recess portion defining a lamp chamber and an opening; a light source disposed in the lamp chamber; a lens covering the opening of the lamp body; a fish-eye lens portion formed of at least one fish-eye lens; a cylindrical lens portion formed of at least one cylindrical lens, the fish-eye lens portion and the cylindrical lens portion arranged on a surface of the lens with a thickness of the fish-eye lens portion being substantially equal to a thickness of the cylindrical lens portion.
    Type: Grant
    Filed: February 22, 1999
    Date of Patent: October 31, 2000
    Assignee: Koito Manufacturing Co., Ltd.
    Inventor: Kazuhiro Hanamori
  • Patent number: 6129447
    Abstract: An automobile lamp comprising a light source, a shade covering the light source, a reflector having an aperture, an outer lens covering the aperture, and an inner lens arranged vertically between the shade and the outer lens, wherein the reflector has a central reflecting surface, which directs light emitted from the light source to the inner lens, a left reflecting surface, a right reflecting surface, and at least one non-reflecting surface which is at least one step between the central reflecting surface and the left or right reflecting surface, and the inner lens covers the central reflecting surface of the reflector. Light distribution patterns are formed by the inner lens, the left reflecting surface, and the right reflecting surface. Light distribution patterns of the automobile lamps are horizontally wide and have high uniformity of luminous flux density distribution.
    Type: Grant
    Filed: January 22, 1999
    Date of Patent: October 10, 2000
    Assignee: Stanley Electric Co., Ltd.
    Inventor: Takashi Futami
  • Patent number: 6123440
    Abstract: A lighting device (100) for an automobile has a light source (101), a reflector (102), and a convergent lens (103) positioned in front of the reflector in order to form an illuminating light beam. The reflector is of the hyperbolic type with an internal focus (F.sub.1), and an external focus (F.sub.2) positioned behind said reflector in a region of the focus of said convergent lens, the light source being placed in a region of the internal focus of said reflector so that the latter forms a virtual light source in the region of the focus of said convergent lens.
    Type: Grant
    Filed: December 4, 1998
    Date of Patent: September 26, 2000
    Assignee: Valeo Vision
    Inventor: Pierre Albou
  • Patent number: 6113254
    Abstract: A vehicle lamp including a lamp body having a front opening and an armoring lens attached to the front opening of the lamp body, the armoring lens including at least a first lens and a second lens each having different colors. The first lens has a front surface, a side surface, a seal leg portion configured for attachment to the lamp body and an extended portion formed on an outer surface of the seal leg portion. The second lens wraps around the first lens to contact the front surface and the side surface of the first lens and has an outer end surface that abuts the extended portion.
    Type: Grant
    Filed: September 11, 1998
    Date of Patent: September 5, 2000
    Assignee: Koito Manufacturing Co., Ltd.
    Inventor: Susumu Kaneko
  • Patent number: 6102558
    Abstract: A motor vehicle headlight comprising a light source, a reflector and a cover lens. The reflector generates a pre-formed light beam such that its modification by any optical elements on the cover lens is unnecessary. The cover lens receives, from at least a substantial part of the reflector, radiation having a mean angle of incidence in a horizontal plane which varies progressively with horizontal displacement over the cover lens. The cover lens includes a set of striations for lateral deflection of the light, with each striation having an individual angular distribution law which is determined by the orientation of the light from the reflector and by the lateral spreading characteristic of the striation. The spreading characteristics of the striations are determined in such a way that the aggregate angular distribution law of the different striations has a curve which is essentially flat.
    Type: Grant
    Filed: May 20, 1998
    Date of Patent: August 15, 2000
    Assignee: Valeo Vision
    Inventor: Thierry Farnoux
  • Patent number: 6070993
    Abstract: A vehicle lamp comprises: a lamp body; and a lens disposed in front of the lamp body, forming a lamp chamber with the lamp body, wherein at least an area forming part of the inner surface of the lamp body or the lens is divided into a plurality of elements, and the cross sectional configuration of each element in two directions meeting at right angles comprises a concave curve in one direction and a convex curve in the other.
    Type: Grant
    Filed: June 17, 1998
    Date of Patent: June 6, 2000
    Assignee: Koito Manufacturing Co., Ltd.
    Inventor: Kazunori Natsume
  • Patent number: 6050706
    Abstract: A vehicle lamp includes an amber light bulb covered with a cup-shaped colorless transparent cap, thus emitting an amber light beam. A colorless, transparent, plain lens is employed. Furthermore, the inner surface of the cylindrical portion of the transparent cap is formed into a plurality of side steps, and the inner surface of the front end portion of the transparent cap is shaped into a Fresnel lens, and the outer surface of the front end portion is shaped into a plurality of fisheye lenses, which makes it more difficult to see the amber light bulb. Therefore, the vehicle lamp appears deep and glittering.
    Type: Grant
    Filed: October 16, 1997
    Date of Patent: April 18, 2000
    Assignee: Koito Manufacturing Co., Ltd.
    Inventors: Yasushi Ohtuka, Masataka Chouji, Naoki Kakiuchi
  • Patent number: 6038387
    Abstract: A method for precise design of light distribution for lighting equipment that use light-emitting devices, and for subsequently producing such equipment. By modeling the internal structure of an LED device with respect to the geometry and characteristics of a chip portion, chip reflector and lens portion, illuminating light from an LED device is classified into direct light from the chip portion and the reflected light from the chip reflector. The unknown values necessary for the modeling are specified preliminarily by actual measurements. Subsequently, the original geometry of the lens step is determined roughly based on the target direction and the diffusion angle of the light transmitted through the step. The manner in which the direct light from the chip portion and the reflected light from the chip reflector are transmitted through the lens portion and the lens step is simulated by ray tracing.
    Type: Grant
    Filed: May 19, 1997
    Date of Patent: March 14, 2000
    Assignee: Koito Manufacturing Co., Ltd.
    Inventor: Tsutomu Machida
  • Patent number: 5964525
    Abstract: An indicating light or side lamp display for a motor vehicle comprises a substantially point light source, a flux recuperator such as a mirror, for reflecting the light from the source towards the outside in the form of an essentially parallel beam, and, interposed in the path of the beam, an intermediate screen and a cover lens. The intermediate screen has a set of optical cells, each of which includes on an internal face a substantially spherical surface for spreading the light, and, on an outer face of the screen, a set of at least two flat facets which are oblique with respect to the plane of the intermediate screen.
    Type: Grant
    Filed: January 9, 1997
    Date of Patent: October 12, 1999
    Assignee: Valeo Vision
    Inventor: Pierre Albou
  • Patent number: 5863116
    Abstract: An exterior vehicle mirror system having a reflective element and a housing for the reflective element includes a turn signal having a lens incorporated in the housing. A portion of the lens faces rearward of the vehicle and the lens further wraps around the outward side of the housing and functions as a side marker for the vehicle.
    Type: Grant
    Filed: September 19, 1997
    Date of Patent: January 26, 1999
    Assignee: Donnelly Corporation
    Inventors: Todd W. Pastrick, Linda K. Molenkamp, Roger L. Koops