Electric Or Fluid-pressure Actuated Patents (Class 362/513)
  • Patent number: 6447153
    Abstract: A reflector is for reflecting light rays from the light source bulb to set up a brightness intensity distribution pattern. The reflector is separated in a movable reflector part and a fixed reflector part. The movable reflector part has a first separated edge. The fixed part has a second separated edge in opposition to the first separated edge. A driving means is for moving the movable reflector part relative to the fixed reflector part to change a brightness intensity distribution pattern of light rays from the light source bulb. The shading flange is for shading an air gap between the first separated edge and the second separated edge.
    Type: Grant
    Filed: August 16, 2000
    Date of Patent: September 10, 2002
    Assignee: Ichikoh Industries, Ltd.
    Inventor: Takayuki Kawamura
  • Patent number: 6443606
    Abstract: A shade driving unit 24 provided in a vehicle headlamp is a solenoid for displacing a movable iron core 36 that pivots a movable shade to a high beam or a low beam position. An inverted diode parallel to the coil is connected to a solenoid driving circuit. A current is kept flowing through the coil by the induced electromotive force generated across the coil after the supply of power to the coil is cut off to gradually de-excite the movable iron core 36. Thus, the movable shade 22 is prevented from strongly butting against a positioning projected portion 26b.
    Type: Grant
    Filed: October 16, 2000
    Date of Patent: September 3, 2002
    Assignee: Koito Manufacturing Co., Ltd.
    Inventor: Mitsuyuki Mochizuki
  • Patent number: 6428195
    Abstract: A vehicle headlamp is equipped with a shade driving unit 24 for moving a movable shade 22, which is capable of shading part of light incident on a reflector 20 from the discharge light emitting portion 18a of a discharge bulb 18, between at least two positions where the incident light is shed in different degrees. The discharge bulb 18 is fixedly supported by the reflector 30 via a bulb supporting base 26 and the movable shade 22 and the shade driving unit 24 are fitted to the bulb supporting base 26. Thus, the light source bulb 18, the movable shade 22 and the shade driving unit 24 together with the bulb supporting base 26 can be operated integrally as a unit. The unit is prefabricated before being fitted to the reflector 20 to facilitate the assembling of the lamp. Moreover, the precision of placement of the movable shade 22 with respect to the discharge light emitting portion 18a can also be improved.
    Type: Grant
    Filed: October 18, 2000
    Date of Patent: August 6, 2002
    Assignee: Koito Manufacturing Co., Ltd.
    Inventors: Hirohiko Ohshio, Michio Tsukamoto
  • Patent number: 6425683
    Abstract: A shade for screening part of reflected light from a light source is rotated between a low beam and a high beam positions providing a different amount of screened light. The beam switching device comprises a tension coil spring for elastically biasing the shade toward the low beam position and a solenoid constructed to press against the shade against the elastic biasing force of the tension coil spring so that the shade rotates to reach the high beam position. The solenoid is constructed to simply press against the shade. The beam switching device can be assembled to a reflector unit only by disposing the solenoid and the tension coil spring at predetermined positions, respectively.
    Type: Grant
    Filed: October 5, 2000
    Date of Patent: July 30, 2002
    Assignee: Koito Manufacturing Co., Ltd.
    Inventors: Masahiro Kusagaya, Kaoru Yamamoto
  • Publication number: 20020075693
    Abstract: A headlight for a vehicle for producing a low beam and at least one light beam with a greater distance, the headlight comprising a light source, a reflector, the light source and the reflector together forming a headlight unit, an electrically adjusting device for changing a relative position between the light source and the reflector, a light width adjusting device for turning the headlight insert about an at least approximately horizontally extending axis, and a safety device operative for monitoring at least indirectly an operation of the adjusting device and in the case of an error when the adjusting device operates not in an orderly manner, the safety device reduces an electric power with which the light source is operated and/or reduces a distance of a light beam produced by the headlight unit.
    Type: Application
    Filed: August 13, 2001
    Publication date: June 20, 2002
    Inventors: Ernst-Olaf Rosenhahn, Michael Hamm, Walter Thieringer, Rainer Wuestenhagen, Doris Boebel
  • Publication number: 20020071286
    Abstract: In order to solve the problems in a headlamp which a prior discharge lamp or the like is provided as a light source, a headlamp in which a right elliptic reflecting surface and a left elliptic reflecting surface are provided on a position toward the front upper of the bulb, a right parabolic reflecting surface is provided on a position toward the lower and right of said main reflecting surface, and a left parabolic reflecting surface is provided on a position toward the lower and left of said main reflecting surface, whereby the light except for the light traveling in an upward direction from the bulb 2 and toward the main reflecting surface can be recovered and to convert into the light which can be used as the irradiating light; a headlamp in which the elliptic reflecting surfaces 6 which captures light emitted upwardly and forwardly from the bulb 2 and parabolic reflecting surfaces 7 which reflect said light to an irradiating direction and are provided on positions which an optical interference with said m
    Type: Application
    Filed: October 5, 2001
    Publication date: June 13, 2002
    Inventor: Hitoshi Taniuchi
  • Patent number: 6402355
    Abstract: A vehicular headlamp for low-beam illumination with a light distribution pattern having a horizontal cutoff line and a diagonal cutoff line so as to improve long distance visibility on the road on which the vehicle is traveling. An upward deflecting reflecting element for irradiating a beam onto a space in an area above a diagonal cutoff line is formed at the outer peripheral edge of the diagonal cutoff line forming area on a reflecting surface of a reflector. As a result, a small light distribution pattern P1 exhibiting high luminous intensity is formed in a space in the area above the diagonal cutoff line.
    Type: Grant
    Filed: August 8, 2000
    Date of Patent: June 11, 2002
    Assignee: Koito Manufacturing Co., Ltd.
    Inventor: Toshiyuki Kinouchi
  • Patent number: 6354721
    Abstract: Headlamp for motor vehicles, which can generate selectively a full light beam and a dipped/fog light beam, including a reflector which is subdivided into an upper reflective area, and a lower reflective area, and has an optical axis, along which there is disposed a single fixed light source consisting of a bulb with a single filament, a lens, which is disposed in a front position and at right-angles relative to the optical axis, and can converge the dipped/fog light beam, intermediate screens which are partially mobile, and can assume selectively a first position, in which they can intercept part of the said full light beam, in order to convert the latter into the said dipped/fog light beam, and a second position, in which the said full beam is not intercepted, and movement means in order to displace the said intermediate screens between the said first and second positions, which means are disposed on the exterior of a casing, which contains the reflector, the light source, the lens and the intermediate scree
    Type: Grant
    Filed: February 7, 2000
    Date of Patent: March 12, 2002
    Assignee: Automotive Lighting Italia S.p.A.
    Inventor: Sergio Zattoni
  • Publication number: 20020018348
    Abstract: An illumination axis adjusting apparatus includes a stepping motor integrally having in turn an automatic angle adjusting structure for automatically adjusting the angle of the illumination axis of an automotive headlamp by driving the motor and a manual angle adjusting structure for manually adjusting the angle of the illumination axis of the headlamp.
    Type: Application
    Filed: May 31, 2001
    Publication date: February 14, 2002
    Applicant: MITSUBISHI DENKI KABUSHIKI KAISHA
    Inventors: Katsuya Miki, Hirofumi Doi, Mutsuo Sekiya
  • Patent number: 6325528
    Abstract: A motor vehicle headlight assembly switchable between low-beam and high-beam modes of operation includes a housing, a reflector component mounted in the housing for displacement relative thereto between a plurality of beam aiming positions, and a light source component mounted in the housing for movement relative to the reflector component between a low-beam position and a high-beam position. A motor is provided for displacing the reflector component between the plurality of beam aiming positions relative to the housing. To selectively move the light source component between, and for holding the light source component in at least one of, its low-beam and high-beam positions relative to the reflector component, use is being made of the motor and of an electromagnet operated in sequential cooperation with the motor.
    Type: Grant
    Filed: July 21, 1999
    Date of Patent: December 4, 2001
    Assignee: Robert Bosch GmbH
    Inventors: Erwin Wittmeier, Heinz Grimm
  • Patent number: 6312147
    Abstract: A headlight for a vehicle operating in a projection principle has a light source, a reflector reflecting a light emitted by the light source, a lens arranged in a course of light reflected by the reflector, a first shade device located between the reflector and the lens and changeable between at least one first condition for a first operational position of the headlight and at least one second condition for a second operational position of the headlight, the first shade device in the first condition screening a part of the light reflected by the reflector and producing a bright-dark limit of a light bundle exiting the headlight, and in the second condition screening at least only a smaller part of a light reflected by the reflector than in the first condition, and a further shade device arranged in a direction of an optical axis offset relative to the first shade device and changeable between at least one first condition and at least one second condition, the further shade device in the first condition screen
    Type: Grant
    Filed: December 21, 1998
    Date of Patent: November 6, 2001
    Assignee: Robert Bosch GmbH
    Inventor: Heike Eichler
  • Publication number: 20010030874
    Abstract: A vehicular headlamp apparatus with a washing function for washing the transparent member of the headlamp apparatus, comprising a washing unit for washing the surface of the transparent member and a light irradiation unit installed in a lamp housing comprised of the transparent member and a lamp body. The nozzle section of the washing unit that includes an injection nozzle and horizontally movable has a cover assembly. When washing the injection nozzle is moved to project out of the lamp apparatus and injects washing liquid to the transparent member. When washing is not performed, the injection nozzle is retracted inside the lamp apparatus and the decoration cover assembly forms the front surface of the headlamp apparatus together with its transparent member.
    Type: Application
    Filed: February 23, 2001
    Publication date: October 18, 2001
    Inventors: Masaru Nishiyama, Yasuo Teranishi
  • Publication number: 20010021113
    Abstract: A headlight for a vehicle operating in a projection principle has a light source, a reflector reflecting a light emitted by the light source, a lens arranged in a course of light reflected by the reflector, a first shade device located between the reflector and the lens and changeable between at least one first condition for a first operational position of the headlight and at least one second condition for a second operational position of the headlight, the first shade device in the first condition screening a part of the light reflected by the reflector and producing a bright-dark limit of a light bundle exiting the headlight, and in the second condition screening at least only a smaller part of a light reflected by the reflector than in the first condition, and a further shade device arranged in a direction of an optical axis offset relative to the first shade device and changeable between at least one first condition and at least one second condition, the further shade device in the first condition screen
    Type: Application
    Filed: December 21, 1998
    Publication date: September 13, 2001
    Inventor: HEIKE EICHLER
  • Patent number: 6280070
    Abstract: A vehicle headlight capable of switching beams between low and high beams by vertically tilting a reflector by a predetermined angle so that upward forward visibility ahead of a vehicle can be secured during high-beam traveling by using a light distribution pattern having a cutoff line as a low-beam light distribution pattern. An upward deflection prism, projecting substantially perpendicularly downward from an upper side of a reflector up to a vicinity of a height position of an upper end edge of the reflective surface of the reflector, is provided in the vicinity of the front of the front end opening of the reflector.
    Type: Grant
    Filed: August 26, 1999
    Date of Patent: August 28, 2001
    Assignee: Koito Manufacturing Co., Ltd.
    Inventors: Hiroyuki Ishida, Hirohiko Ohshio, Shoji Kobayashi
  • Publication number: 20010010634
    Abstract: A bulb supporting base fixed to a reflector of a vehicle headlamp is provided with a deviation-preventing member having first and second upper and lower resilient strips. The strips resiliently abut against a projection formed on a leg of a movable shade that shades light from the bulb when the movable shade is at either a low beam position or a high beam position.
    Type: Application
    Filed: January 30, 2001
    Publication date: August 2, 2001
    Inventor: Shoichiro Yokoi
  • Patent number: 6260992
    Abstract: A vehicle headlamp device is designed to provide the feeling that sufficient light quantity exists in the high beam (H-beam) mode despite the use of a single discharge light source. The headlamp can be produced at low cost and by simple construction without the need for installing an auxiliary reflective part on the reflective member. The vehicle headlamp device can include a discharge lamp light source, a switching device for switching between the high beam and low beam, and a lighting device which supplies electric power to the discharge lamp. The lighting device can be controlled such that the electric power supplied to the discharge lamp is increased only when the beam is switched to the H-beam mode by the switching device.
    Type: Grant
    Filed: February 3, 2000
    Date of Patent: July 17, 2001
    Assignee: Stanley Electric Co., LTD
    Inventors: Toru Tanabe, Shinji Fukuwa
  • Patent number: 6190029
    Abstract: A headlamp 1 has a beam distribution switch mechanism that comprises a hood 3 and a reflecting mirror 4. The hood 3 includes a fixed member 31 having a cut portion 31a on the upper side and a moving member 32 for opening and closing the cut portion. The reflecting mirror 4 includes a first reflecting surface 41 for reflecting the light beam from the light source 2 when the cut portion 31a is closed and the second reflecting surface 42 for reflecting the light beam from the light source 2 when the cut portion 31a is opened.
    Type: Grant
    Filed: September 25, 1998
    Date of Patent: February 20, 2001
    Assignee: Stanley Electric Co., Ltd.
    Inventors: Hitoshi Taniuchi, Hiroshi Iwasaki, Takashi Sato
  • Patent number: 6186651
    Abstract: A projector headlamp utilizing only a single HID bulb for projecting light in a forward direction generally along a horizontal axis selectably between low beam and high beam conditions while shifting the hot spot as required between these conditions.
    Type: Grant
    Filed: July 21, 1999
    Date of Patent: February 13, 2001
    Assignee: Visteon Global Technologies, Inc.
    Inventors: Edwin Mitchell Sayers, Balvantrai Patel, David Vozenilek, Jeyachandrabose Chinniah, Jose M. Cruz, Jeffrey Allen Erion, Jaroslav Purma, Milan Cejnek
  • Patent number: 6179455
    Abstract: An automobile headlight comprising a light source, a reflector having a by-passing reflecting portion, which reflects light emitted from the light source downward to form a light distribution pattern for by-passing, and a traveling reflecting portion, which reflects light emitted from the light source to a horizontal front of the automobile headlight when the movable shade is in a position for traveling straight ahead, a fixed shade which directs light emitted from the light source towards the reflector, a movable shade capable of taking a position P or Q depending on whether the automobile is traveling straight ahead or by-passing another vehicle, and a driving unit connected to the movable shade for changing a position of the movable shade, wherein when the movable shade is in the by-passing position Q, the movable shade suppresses light emitted from the light source towards the traveling reflecting portion and passes light emitted from the light source toward the by-passing reflecting portion, and when the
    Type: Grant
    Filed: April 5, 1999
    Date of Patent: January 30, 2001
    Assignee: Stanley Electric Co., Ltd.
    Inventor: Hitoshi Taniuchi
  • Patent number: 6161950
    Abstract: A vehicle headlamp is provided with a leveling unit and a mechanical drive type beam switching device having one actuator mechanism. A low beam is switched to a high beam by driving the actuator of the leveling unit so as to tilt a reflector upward by an angle greater than a maximum upwardly-tilted angle at the time of leveling adjustment in order that the actuator may be set for common use. Moreover, a bulb holder is vertically tiltably supported by the reflector and tilted together with the reflector up to the aforementioned maximum upwardly-tilted angle on one hand, and the bulb holder is fixed to the maximum upwardly-tilted angle separately from the reflector by a stopper pin while the reflector may coincide with a high-beam upwardly tilting angle.
    Type: Grant
    Filed: August 25, 1999
    Date of Patent: December 19, 2000
    Assignee: Koito Manufacturing Co., Ltd.
    Inventors: Michio Tsukamoto, Hirohiko Ohshio
  • Patent number: 6012829
    Abstract: A device for correcting the orientation of a motor vehicle headlight beam has a casing containing an electric motor, a rotatable output shaft and a speed reducer working between the motor shaft and the output shaft of the device, for the purpose of making running adjustments to the beam orientation. The device also includes a manual adjusting knob which is rotatable in the casing, with a selective transmission means between the manual knob and the output shaft, for putting the latter into a reference position when the knob is rotated. The speed reducing motor drive is coupled to the output shaft through a dog clutch which is disengaged, to convert the device from electrical to manual operation, by axial declutching movement of the manual knob.
    Type: Grant
    Filed: June 15, 1998
    Date of Patent: January 11, 2000
    Assignee: Valeo Vision
    Inventor: Philippe Natchoo
  • Patent number: 5988840
    Abstract: A replacement grill having slidable headlight covers is Provided for trucks, sport utility vehicles, and other motor vehicles. The grill includes a frame with a grillwork to allow airflow into the engine compartment. Headlight covers are slidably mounted within the frame for movement between open and closed positions. The movement of the headlight covers is controlled by a motor which is electrically connected to the vehicle headlight switch. Thus, the headlight covers are automatically opened when the headlights are turned on and automatically closed when the headlights are turned off. A chain and sprocket assembly connects the headlight covers to the motor.
    Type: Grant
    Filed: October 30, 1998
    Date of Patent: November 23, 1999
    Inventor: Troy A Wirtz
  • Patent number: 5951155
    Abstract: A light assembly comprises a fixed mounting plate on which there is positioned a variable resistor, a rotatable member including an arm engaging the variable resistor and a lamp subassembly pivotally mounted to the rotatable member and keyed to the rotatable member such when the lamp subassembly is rotated in a plane generally parallel to a lens associated with the lamp subassembly, the rotatable member moves with respect to the fixed mounting plate, thereby varying the resistance, which is coupled in series with a lamp contained within the lamp subassembly for varying the intensity of the illumination therefrom. In a preferred embodiment also, the lamp subassembly includes a lens having a knob associated therewith such that the lamp subassembly can be tilted and rotated for directing and varying the intensity of the illumination therefrom.
    Type: Grant
    Filed: September 3, 1997
    Date of Patent: September 14, 1999
    Assignee: Prince Corporation
    Inventor: Michael L. Lanser
  • Patent number: 5938319
    Abstract: The headlight has a light source (10) and a reflector (12) by which light is reflected to a light guiding or deflecting device (18). The light guiding device (18) has a number, advantageousely from a few hundred to a hundred thousand, of individual reflecting elements (22) which are movable independently of each other between at least two different positions. Each reflecting element (22) is connected with an electrically operable adjusting element (26) which is controlled by a controller (30). The light reflected from the reflector (12) is reflectable from the light guide device (18) to form a light beam issuing from the lighting device. Reflected light from each reflecting element (22) in one of its positions forms a part of the light beam and does not contribute to the light beam in one of its other positions.
    Type: Grant
    Filed: June 17, 1996
    Date of Patent: August 17, 1999
    Assignee: Robert Bosch GmbH
    Inventor: Guenter Hege
  • Patent number: 5915829
    Abstract: Basic vertical and horizontal adjustment of a light beam (9) of a headlight are carried out with respect to a longitudinal axis (5) of the headlight by vertical (6) and horizontal (7) displacement of a lens (4) relative to a light source (2) and a reflector (1).
    Type: Grant
    Filed: June 26, 1997
    Date of Patent: June 29, 1999
    Assignee: Hella KG Hueck & Co.
    Inventors: Franz-Josef Kalze, Heinz Werner Rixen
  • Patent number: 5899559
    Abstract: A headlamp has a saucer-shaped reflector (1) with two focuses. A light source (2) is positioned at an inner focus. An adjustable screen (4) is located between the reflector and a lens (3), and can be adjusted into positions providing high-beam and low-beam light. A bracket (5) has an area below the adjustable screen that serves as a shielding element for light beams from the light source, and as a holder for a remote-controlled adjusting device (6).
    Type: Grant
    Filed: February 27, 1998
    Date of Patent: May 4, 1999
    Assignee: Hella KG Hueck & Co.
    Inventors: Roland Lachmayer, Ewald Topp