• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The invention relates to a reflector made from plastics material for a lamp, for example a motor vehicle headlamp, intended to co- operate with a light source in order to obtain a fixed beam of light. During construction the reflector is provided in its upper region, which is subject to the greatest heat, with a surface shape (Z1) which diverges significantly from the shape (P) which would produce the required form of light beam but which, in conditions of heat corresponding to the normal functioning of the lamp, is deformed so that the interior surface adopts a shape which will produce the required beam. <IMAGE>
    公开号:SU1194292A3
    申请号:SU813276851
    申请日:1981-02-04
    公开日:1985-11-23
    发明作者:Деверрваер Ален
    申请人:Сиби Прожектер (Фирма)；
    IPC主号:
    专利说明:


    The invention relates to lighting, in particular, to the design of car headlight reflectors.
    The aim of the invention is to improve the safety of movement by compensating for the deformation of the reflector when heated by a light source.
    FIG. 1 shows a reflector, a general view; in fig. 2 - the same, front view; in fig. 3 - the same, vertical axial section; in fig. 4 reflector option.
    The plastic reflector for an auto-mobile headlight contains a central part 1, made in the form of a paraboloid of rotation with an opening 2 to accommodate a light source, a flat top 3 and bottom 4 walls, and a four-carbon surface 5 located in the central part 1 of the reflector. in its cold and heated state, equal to 0.002-0.06 rad, which is applied to the upper flat wall 3 and is made symmetrically relative to 942922
    relative to the optical axis of the reflector. Here, the vertical dimension h of the surface 5 is 0.1-0.75.
    The distance H from the optical axis J of the reflector to its upper flat wall 3 and width 1 is at least 0.1 of the width of the reflector L. In an embodiment, the reflector has several surfaces 6-8 adjacent to the upper flat wall 3 located one in the other with increasing from greater to smaller angle between the tangents to them in their cold and heated state. The reflector works as follows.
     When the light source is turned on, the reflector heats up, especially its upper flat wall, which leads to its thermal expansion and, consequently, a decrease in the angle of inclination of the surface 5 until it coincides with the parabolic profile of the central part 1 25 of the reflector.
    .
    FIG.
    权利要求:
    Claims (2)
    [1]
    1. PLASTIC REFLECTOR FOR A CAR HEADLAMP, comprising a central part in the form of a rotation paraboloid with an opening for placing a light source and flat upper and lower walls, characterized in that, in order to increase the safety of movement by compensating for the deformation of the reflector when heated by a light source, the central part of the reflector is at least one quadrangular surface with an angle between tangents to it in its cold and heated state equal to 0.002-0.06 rad, adjacent to the upper flat wall and Execute hydrochloric symmetrically relative optiches Coy reflector οςπ, wherein the vertical dimension of the surface of 0.1-0.75 distance from the optical axis of the reflector to its upper planar wall, and the width is not less than 0.1 of the reflector width.
    [2]
    2. The reflector according to claim 1, characterized in that it has several surfaces adjacent to the upper flat wall, is located. one in the other with increasing from a larger to a smaller angle between the tangents to them in their cold and heated state.
    类似技术:
    公开号 | 公开日 | 专利标题
    US5081564A|1992-01-14|Vehicular lighting device
    US4539628A|1985-09-03|Nonglare light fixtures for a rod-shaped light source
    US5692824A|1997-12-02|Vehicular clearance lamp having improved lateral illumination
    KR930008687Y1|1993-12-28|Headlight for vehicle
    KR100438120B1|2005-05-24|Car head lamp
    JP3013141B2|2000-02-28|Vehicle headlights
    US4555748A|1985-11-26|Truncated motor vehicle headlamp
    JPH0817044B2|1996-02-21|Vehicle headlights
    US4972307A|1990-11-20|Structure of headlamps for vehicles
    SU1194292A3|1985-11-23|Plastic reflector of automobile head light
    GB2130353A|1984-05-31|Truncated motor vehicle headlamp
    US4740875A|1988-04-26|Motor vehicle headlight having lens with glare prevention means
    US5465195A|1995-11-07|Headlight for motor vehicles
    GB2070755A|1981-09-09|Lamp in particular for motor vehicles
    US4800468A|1989-01-24|Headlamp for vehicle
    US4545001A|1985-10-01|Sealed lens member for use in a motor vehicle lighting system
    KR920005571B1|1992-07-09|Signal lamp for rear of vehicle
    JP2591839B2|1997-03-19|Lamp reflector and headlight unit
    US6092918A|2000-07-25|Vehicular headlamp having improved yield of high-beam luminous energy
    JP3129643B2|2001-01-31|Vehicle headlights
    GB2150275A|1985-06-26|Headlamp for motor vehicles
    EP0582994B1|1997-05-02|Reflector molded of synthetic resin for a lighting device mounted on a vehicle
    JP3281229B2|2002-05-13|Fog lights for vehicles
    US1804719A|1931-05-12|Vehicle light director
    KR950029019A|1995-11-22|Car headlights
    同族专利:
    公开号 | 公开日
    DE3103379A1|1981-12-17|
    DE3103379C2|1987-01-02|
    ES8200457A1|1981-11-16|
    JPS6340321B2|1988-08-10|
    GB2069123B|1983-03-23|
    FR2475186B1|1982-12-10|
    ES498920A0|1981-11-16|
    JPS56116201A|1981-09-11|
    FR2475186A1|1981-08-07|
    GB2069123A|1981-08-19|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    RU2544051C1|2013-10-31|2015-03-10|Открытое акционерное общество "АВТОВАЗ"|Illumination device for vehicle|FR1302549A|1961-07-18|1962-08-31|Improvement in reflectors, more particularly reflectors for automotive headlights|
    US4280173A|1978-06-19|1981-07-21|General Electric Company|Heat shield for plastic headlamp|JPS5851503U|1981-10-05|1983-04-07|
    US4555748A|1982-10-28|1985-11-26|General Electric Company|Truncated motor vehicle headlamp|
    JPS62104302U|1985-12-23|1987-07-03|
    IT1267337B1|1994-12-16|1997-01-28|Carello Spa|REFLECTOR FOR A ROAD VEHICLE PROJECTOR.|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    FR8002467A|FR2475186B1|1980-02-05|1980-02-05|
    [返回顶部]