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KR-102963392-B1 - SLIM TYPE LAMP APPARATUS FOR VEHICLE

KR102963392B1KR 102963392 B1KR102963392 B1KR 102963392B1KR-102963392-B1

Abstract

In the present invention, a slim headlamp is realized by securing the degree of freedom in the vertical width of the light-emitting area. Additionally, a slim lamp device for vehicles is introduced that ensures light output and reduces the size of the optical system, making package configuration advantageous.

Inventors

  • 임정욱
  • 안병석
  • 박성호
  • 이기홍
  • 한승식
  • 정진영
  • 한혜진

Assignees

  • 현대자동차주식회사
  • 기아 주식회사
  • 에스엘 주식회사

Dates

Publication Date
20260508
Application Date
20201210

Claims (17)

  1. A light source that emits light; and It comprises an incident section into which light irradiated from a light source is incident, a reflector section that extends from the incident section and reflects and moves the incident light, and an output section into which the light reflected through the reflector section is emitted, wherein the reflector section is formed such that some of the light diffuses upon reflection to form a diffused beam pattern through the output section, and the remaining light is concentrated upon reflection to form a concentrated beam pattern through the output section; and includes a lens section. The reflective part is, A first reflective surface formed to reflect light incident through an incident section so that the light moves toward the focus, and A second reflective surface formed to reflect light reflected from a first reflective surface so that the light moves toward an emission part, and It includes a third reflective surface that reflects some of the light reflected from the second reflective surface so that the light moves toward the emission unit, but moves in a direction different from the path of the light moving through the second reflective surface. A slim lamp device for a vehicle, characterized in that the first reflective surface is divided into a diffuse reflective surface and a concentrating reflective surface with respect to the optical axis of the light source, light that is reflected and moved through the diffuse reflective surface forms a diffuse beam pattern when reflected at the second reflective surface, and light that is reflected and moved through the concentrating reflective surface forms a concentrating beam pattern after being reflected at the second reflective surface and then reflected at the third reflective surface.
  2. In claim 1, A slim lamp device for a vehicle characterized in that the inner width of the inlet and outlet sections is formed to be greater than the inner width of the reflector section.
  3. In claim 1, A slim lamp device for a vehicle, characterized in that the incident section comprises an incident surface into which light from a light source is incident, a total reflection surface that extends with an inclination such that the width gradually increases from the incident surface, and a parallel light conversion section that extends in a straight line from the incident surface.
  4. In claim 2, A slim lamp device for a vehicle characterized by comprising an incident side section that extends in a straight line from the incident surface to move the incident light to the overall incident surface, and an incident center section that is curvedly connected to the end of the incident side section to convert the incident light into parallel light and emit it.
  5. delete
  6. In claim 1, The first reflective surface is extended in a curved manner around the focal point, and A slim lamp device for a vehicle, characterized in that the second reflective surface is positioned on the path of light reflected from the first reflective surface toward the focal point, and is formed so that the incident light is totally reflected and moves toward the emission part.
  7. delete
  8. In claim 1, A slim lamp device for a vehicle, characterized in that the first reflective surface is positioned further back than the light-concentrating reflective surface with respect to the direction in which light travels from the incident section to the exit section.
  9. In claim 1, A slim lamp device for a vehicle, characterized in that the third reflective surface extends from the second reflective surface so as to allow light reflected through the light-concentrating reflective surface to be incident, and is formed such that the incident light is totally reflected and moves in a direction different from the path of light that moves through the light-diffusing reflective surface.
  10. In claim 1, A slim lamp device for a vehicle, characterized in that a third reflective surface has a portion of the area sunken or protruding to form a cut-off portion.
  11. In claim 1, A slim lamp device for a vehicle, characterized in that the emission section comprises an upper surface extending in a straight line from the first reflective surface of the reflective section, a lower surface extending at least partially at an angle from the third reflective surface, and an emission surface connecting the upper surface and the lower surface.
  12. In claim 11, A slim lamp device for a vehicle characterized by further including an additional light source that irradiates light toward the lower surface of the emission section.
  13. In claim 12, A slim lamp device for a vehicle characterized by an additional light source being positioned such that the irradiation angle of the light irradiated onto the lower surface of the emission unit is smaller than the angle of inclination of the lower surface.
  14. In claim 1, A slim lamp device for a vehicle, characterized by further including an additional lens unit provided at a position where light is emitted from an emission unit, so that light emitted from the emission unit is incident and the light distribution range of the incident light is diffused.
  15. In claim 14, A slim lamp device for a vehicle, characterized in that the additional lens portion has an incident portion formed with a curve to convert incident light into parallel light, and a plurality of optics having a cross-section are formed to protrude from the exit portion.
  16. In claim 14, A slim lamp device for a vehicle, characterized in that the additional lens portion is formed such that the protruding thickness becomes larger as it extends downward.
  17. In claim 14, A slim lamp device for a vehicle characterized in that the lowest optic among the plurality of optics in the additional lens portion is formed to be inclined forward.

Description

Slim Type Lamp Apparatus for Vehicle The present invention relates to a slim lamp device for vehicles that secures light efficiency and reduces the size of the optical system. Generally, vehicles are equipped with lighting devices intended to enable clear visibility of objects in the direction of travel during nighttime driving, and to inform other vehicles or road users of the vehicle's driving status. Lamps, also known as headlights, are lighting fixtures that function to illuminate the path ahead as the vehicle travels. These lamps are classified into headlamps, fog lights, turn signals, brake lights, and reverse lights, and each is set to project light onto the road surface in a different direction. In normal driving situations, the headlamps project a low beam, and in special situations, they project a high beam. Meanwhile, optical systems applied to future vehicles are trending toward a reduction in overall size, but it is difficult to reduce the size of the optical system while maintaining light output. The matters described above as background technology are intended only to enhance understanding of the background of the present invention and should not be construed as an acknowledgment that they constitute prior art already known to those skilled in the art. FIG. 1 is a drawing showing a slim lamp device for a vehicle according to the present invention. FIG. 2 is a cross-sectional view of a slim lamp device for a vehicle shown in FIG. 1. FIG. 3 is a drawing for explaining the cut-off portion of a slim lamp device for a vehicle shown in FIG. 1. FIG. 4 is a diagram showing a diffusion beam pattern formed by the present invention. FIG. 5 is a drawing showing a concentrated beam pattern formed by the present invention. FIG. 6 is a drawing showing a slim lamp device for a vehicle according to another embodiment of the present invention. FIG. 7 is a diagram illustrating the adjustment of the light irradiation position according to the position of an additional light source. Hereinafter, a slim lamp device for a vehicle according to a preferred embodiment of the present invention will be examined with reference to the attached drawings. FIG. 1 is a drawing showing a slim lamp device for a vehicle according to the present invention, FIG. 2 is a cross-sectional view of the slim lamp device for a vehicle shown in FIG. 1, FIG. 3 is a drawing for explaining the cut-off portion of the slim lamp device for a vehicle shown in FIG. 1, FIG. 4 is a drawing showing a diffused beam pattern formed by the present invention, FIG. 5 is a drawing showing a concentrated beam pattern formed by the present invention, FIG. 6 is a drawing showing a slim lamp device for a vehicle of another embodiment according to the present invention, and FIG. 7 is a drawing for explaining the adjustment of the light irradiation position according to the position of an additional light source. As shown in FIGS. 1 and 2, the slim lamp device for a vehicle according to the present invention comprises: a light source (100) that irradiates light; an incident part (210) into which light irradiated from the light source (100) is incident, a reflector part (220) that extends from the incident part (210) and reflects and moves the incident light, and an output part (230) into which light reflected through the reflector part (220) is emitted, wherein in the case of the reflector part (220), some of the light is diffused upon reflection to form a diffused beam pattern through the output part (230), and the remaining light is concentrated upon reflection to form a concentrated beam pattern through the output part (230). Here, the light source (100) may be composed of an LED, and a lens part (200) is placed in front of the light source (100). The lens portion (200) is formed in a curved shape to reflect light irradiated from the light source (100) to form a specific beam pattern. Accordingly, the lens portion (200) consists of an incident portion (210) into which light is incident, a reflective portion (220) into which the incident light is reflected and moves, and an output portion (230) into which the beam pattern formed by the reflection is emitted. In particular, the reflective portion (220) of the lens portion (200) causes some of the light irradiated from the light source (100) to diffuse and form a diffused beam pattern through the output portion (230), while the remaining light is concentrated and forms a concentrated beam pattern through the output portion (230). Thus, the light irradiated from the light source (100) is incident on the lens portion (200), and as the light's path of movement is changed by reflection within the lens portion (200), some of the light diffuses to form a diffused beam pattern, and the remaining light concentrates to form a concentrated beam pattern. As a result, the present invention ensures a light quantity for implementing headlamp lighting as light irradiated from a light source (100) is emitted through a lens unit