KR101393346B1 - Lamp apparatus for an automobile - Google Patents

Lamp apparatus for an automobile Download PDF

Info

Publication number
KR101393346B1
KR101393346B1 KR1020120027749A KR20120027749A KR101393346B1 KR 101393346 B1 KR101393346 B1 KR 101393346B1 KR 1020120027749 A KR1020120027749 A KR 1020120027749A KR 20120027749 A KR20120027749 A KR 20120027749A KR 101393346 B1 KR101393346 B1 KR 101393346B1
Authority
KR
South Korea
Prior art keywords
light
light source
light guide
guide
pattern
Prior art date
Application number
KR1020120027749A
Other languages
Korean (ko)
Other versions
KR20130106104A (en
Inventor
강동곤
Original Assignee
현대모비스 주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 현대모비스 주식회사 filed Critical 현대모비스 주식회사
Priority to KR1020120027749A priority Critical patent/KR101393346B1/en
Priority to CN201310043551.1A priority patent/CN103322483B/en
Publication of KR20130106104A publication Critical patent/KR20130106104A/en
Application granted granted Critical
Publication of KR101393346B1 publication Critical patent/KR101393346B1/en

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/20—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by refractors, transparent cover plates, light guides or filters
    • F21S43/235—Light guides
    • F21S43/249—Light guides with two or more light sources being coupled into the light guide
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/10—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
    • F21S41/14—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source characterised by the type of light source
    • F21S41/141—Light emitting diodes [LED]
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/10—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the light source
    • F21S43/13—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the light source characterised by the type of light source
    • F21S43/14—Light emitting diodes [LED]
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/20—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by refractors, transparent cover plates, light guides or filters
    • F21S43/235—Light guides
    • F21S43/236—Light guides characterised by the shape of the light guide
    • F21S43/237—Light guides characterised by the shape of the light guide rod-shaped
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/20—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by refractors, transparent cover plates, light guides or filters
    • F21S43/235—Light guides
    • F21S43/236—Light guides characterised by the shape of the light guide
    • F21S43/239—Light guides characterised by the shape of the light guide plate-shaped
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/20—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by refractors, transparent cover plates, light guides or filters
    • F21S43/235—Light guides
    • F21S43/242—Light guides characterised by the emission area
    • F21S43/245—Light guides characterised by the emission area emitting light from one or more of its major surfaces
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0033—Means for improving the coupling-out of light from the light guide
    • G02B6/0035—Means for improving the coupling-out of light from the light guide provided on the surface of the light guide or in the bulk of it
    • G02B6/0036—2-D arrangement of prisms, protrusions, indentations or roughened surfaces
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0033—Means for improving the coupling-out of light from the light guide
    • G02B6/005—Means for improving the coupling-out of light from the light guide provided by one optical element, or plurality thereof, placed on the light output side of the light guide
    • G02B6/0055—Reflecting element, sheet or layer
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0066—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form characterised by the light source being coupled to the light guide
    • G02B6/0068—Arrangements of plural sources, e.g. multi-colour light sources
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0066—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form characterised by the light source being coupled to the light guide
    • G02B6/0073—Light emitting diode [LED]
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Optics & Photonics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Planar Illumination Modules (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Abstract

광효율이 향상되는 자동차의 조명 장치가 제공된다.
이를 위해, 본 발명의 실시예에 의한 자동차의 조명 장치는, 빛을 생성하는 광원과, 상기 빛을 전면으로 출광하는 출광부와, 상기 출광부가 상기 빛을 전면으로 출광할 수 있도록 상기 출광부의 후면에 접해 배치되고 상기 빛을 전반사하는 패턴이 전면에 돌출되어 형성된 반사부로 이루어진 라이트가이드를 포함한다.There is provided an illumination device for an automobile having improved light efficiency.
To this end, an automotive lighting apparatus according to an embodiment of the present invention includes a light source that generates light, a light emitting unit that emits the light to the front surface, and a light emitting unit that emits light toward the front surface, And a light guide which is disposed in contact with a rear surface of the light guide plate and includes a reflective portion formed by protruding a pattern for totally reflecting the light.

Description

자동차의 조명 장치{LAMP APPARATUS FOR AN AUTOMOBILE}[0001] LAMP APPARATUS FOR AN AUTOMOBILE [0002]

본 발명은 자동차의 조명 장치에 관한 것으로서, 보다 상세하게는 광원의 빛을 전반사하여 외부로 출광하는 라이트가이드가 설치된 자동차의 조명 장치에 관한 것이다.
BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a lighting apparatus for an automobile, and more particularly, to a lighting apparatus for a vehicle provided with a light guide that totally reflects light from a light source and outputs the light.

일반적으로 자동차에는 전방 및 후방에 각종 조명 장치가 장착되어 자동차 안전 및 운전의 편의를 제공하고 있는데, 이러한 조명 장치로는 전조등, 후미등, 방향 지시등 등이 있다.In general, automobiles are equipped with various lighting devices on the front and rear sides to provide safety and driving convenience for automobiles. Such lighting devices include headlights, taillights, and turn signals.

이러한 조명 장치는 자동차의 외부에서 볼 때 광원이 노출되어 있는 데 반해, 최근의 자동차의 디자인 중시 경향에 따라 빛을 생성하는 광원이 직접 노출되지 않고 간접적인 조명 효과가 발휘될 수 있도록, 광원의 빛을 전반사하여 자동차의 외부로 출광하는 라이트가이드를 설치한 조명 장치가 개발되고 있는 추세이다.
Such a lighting device has a problem in that the light source is exposed when viewed from the outside of the automobile, and the light source that generates light is not directly exposed to the design tendency of the recent automobile, And a light guide for outputting the light to the outside of the vehicle in total.

본 발명이 해결하려는 과제는, 광효율이 향상되는 자동차의 조명 장치를 제공하는 것이다.SUMMARY OF THE INVENTION An object of the present invention is to provide a lighting device for an automobile in which optical efficiency is improved.

본 발명의 과제는 이상에서 언급한 과제로 제한되지 않으며, 언급되지 않은 또 다른 과제들은 아래의 기재로부터 당업자에게 명확하게 이해될 수 있을 것이다.
The problems of the present invention are not limited to the above-mentioned problems, and other problems not mentioned can be clearly understood by those skilled in the art from the following description.

상기 과제를 달성하기 위하여, 본 발명의 실시예에 의한 자동차의 조명 장치는, 빛을 생성하는 광원과, 상기 빛을 전면으로 출광하는 출광부와, 상기 출광부가 상기 빛을 전면으로 출광할 수 있도록 상기 출광부의 후면에 접해 배치되고 상기 빛을 전반사하는 패턴이 전면에 돌출되어 형성된 반사부로 이루어진 라이트가이드를 포함한다.According to an aspect of the present invention, there is provided an automotive lighting apparatus including a light source for generating light, a light emitting unit for emitting the light to the front, and a light emitting unit for emitting light to the front And a light guide disposed in contact with a rear surface of the light emitting portion and including a reflective portion formed by protruding a pattern for totally reflecting the light.

기타 실시예의 구체적인 사항들은 상세한 설명 및 도면들에 포함되어 있다.
The details of other embodiments are included in the detailed description and drawings.

본 발명에 따른 자동차의 조명 장치는, 광원의 빛을 전반사하는 패턴이 반사부에 돌출되어 형성되기 때문에, 상기 패턴의 폭을 미세한 폭으로 형성할 수 있어서, 상기 빛의 미세한 컨트롤이 가능해지는 효과가 있다.The illumination device of the automobile according to the present invention has a pattern in which the light totally reflecting the light source is protruded from the reflecting portion, so that the width of the pattern can be formed with a minute width, have.

또한, 상기 광원이 라이트가이드의 외부에 배치되지 않고 내부에 배치되기 때문에, 상기 광원에서 생성된 빛이 공기 중으로 나오는 과정에서 전반사되어 소멸되는 현상을 방지할 수 있어서 광효율이 향상되는 효과도 있으며, 상기 광원 및 라이트가이드 사이에 공기층이 없기 때문에, 빛의 진행 매질이 줄어들어 상기 라이트가이드로 입사되는 빛의 투과율이 향상되는 효과도 있다.In addition, since the light source is disposed outside the light guide, it is prevented that the light generated by the light source is totally reflected and extinguished in the process of being emitted into the air, thereby improving the light efficiency. Since there is no air layer between the light source and the light guide, the progress of the light is reduced and the light transmittance of the light entering the light guide is improved.

또한, 상기 라이트가이드가 공기에 비해 열전도율이 월등히 높은 UV 경화수지로 형성되어 있기 때문에, 상기 광원에서 생성된 빛에 의한 열을 냉각하기 위한 방열장치가 필요하지 않게 되는 효과도 있다.Further, since the light guide is formed of a UV curable resin having a thermal conductivity which is much higher than that of air, there is an effect that a heat radiation device for cooling heat generated by the light source is not required.

본 발명의 효과는 이상에서 언급한 효과로 제한되지 않으며, 언급되지 않은 또 다른 효과들은 청구범위의 기재로부터 당업자에게 명확하게 이해될 수 있을 것이다.
The effects of the present invention are not limited to the effects mentioned above, and other effects not mentioned can be clearly understood by those skilled in the art from the description of the claims.

도 1은 본 발명의 실시예에 의한 자동차의 조명 장치를 나타내는 사시도,
도 2는 본 발명의 실시예에 의한 자동차의 조명 장치를 나타내는 단면도,
도 3은 도 2에 도시된 반사부의 상세도이다.1 is a perspective view showing a lighting apparatus for an automobile according to an embodiment of the present invention,
FIG. 2 is a sectional view showing a lighting apparatus for a vehicle according to an embodiment of the present invention,
3 is a detailed view of the reflector shown in Fig.

본 발명의 이점 및 특징, 그리고 그것들을 달성하는 방법은 첨부되는 도면과 함께 상세하게 후술되어 있는 실시예를 참조하면 명확해질 것이다. 그러나 본 발명은 이하에서 개시되는 실시예에 한정되는 것이 아니라 서로 다른 다양한 형태로 구현될 수 있으며, 단지 본 실시예는 본 발명의 개시가 완전하도록 하고, 본 발명이 속하는 기술분야에서 통상의 지식을 가진 자에게 발명의 범주를 완전하게 알려주기 위해 제공되는 것이며, 본 발명은 청구항의 범주에 의해 정의될 뿐이다. 명세서 전체에 걸쳐 동일 참조 부호는 동일 구성 요소를 지칭한다.BRIEF DESCRIPTION OF THE DRAWINGS The advantages and features of the present invention, and how to accomplish them, will become apparent by reference to the embodiments described in detail below with reference to the accompanying drawings. The present invention may, however, be embodied in many different forms and should not be construed as being limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the invention to those skilled in the art. Is provided to fully convey the scope of the invention to those skilled in the art, and the invention is only defined by the scope of the claims. Like reference numerals refer to like elements throughout the specification.

이하, 본 발명의 실시예에 의한 자동차의 조명 장치를 도면들을 참고하여 설명하도록 한다.DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an automotive lighting apparatus according to an embodiment of the present invention will be described with reference to the drawings.

도 1은 본 발명의 실시예에 의한 자동차의 조명 장치를 나타내는 사시도, 도 2는 본 발명의 실시예에 의한 자동차의 조명 장치를 나타내는 단면도, 도 3은 도 2에 도시된 반사부의 상세도이다.FIG. 1 is a perspective view showing a lighting apparatus for an automobile according to an embodiment of the present invention, FIG. 2 is a sectional view showing a lighting apparatus for an automobile according to an embodiment of the present invention, and FIG. 3 is a detailed view of the reflection section shown in FIG.

도 1 내지 도 3을 참조하면, 본 발명의 실시예에 의한 자동차의 조명 장치(100)는, 빛을 생성하는 광원(15)과, 광원(15)에서 생성된 빛을 전반사하여 전면 외부로 출광하는 라이트가이드(20)를 포함한다.1 to 3, an automotive lighting apparatus 100 according to an embodiment of the present invention includes a light source 15 that generates light, a light source 15 that totally reflects light generated by the light source 15, And a light guide 20 for guiding light.

광원(15)은 LED로 구비되어 기판(10)에 3개 장착된다. 다만, 기판(10)에 장착되는 광원(15)의 개수는 이에 한정을 두지는 아니한다.The light source 15 is mounted on the substrate 10 by three LEDs. However, the number of the light sources 15 mounted on the substrate 10 is not limited thereto.

광원(15)은 라이트가이드(20)의 라이트가이드(20)의 측면 내부에 매립되어서, 광원(15)에서 생성된 빛이 공기를 통하지 않고 곧바로 라이트가이드(20)로 입사될 수 있도록 한다.The light source 15 is embedded in the side surface of the light guide 20 of the light guide 20 so that the light generated by the light source 15 can be directly incident on the light guide 20 without passing through the air.

이와 같이, 광원(15)이 라이트가이드(20)의 외부에 배치되지 않고, 라이트가이드(20)의 내부에 배치되게 되면, 광원(15)에서 생성된 빛이 공기 중으로 나오는 과정에서 전반사되어 소멸되는 현상을 방지할 수 있어서, 광효율이 향상된다. 또한, 광원(15) 및 라이트가이드(20) 사이에 공기층이 없기 때문에, 빛의 진행 매질이 줄어들어 라이트가이드(20)로 입사되는 빛의 투과율이 향상된다.When the light source 15 is not disposed outside the light guide 20 but is disposed inside the light guide 20, the light generated by the light source 15 is totally reflected and extinguished The phenomenon can be prevented, and the light efficiency is improved. In addition, since there is no air layer between the light source 15 and the light guide 20, the progress of the light is reduced and the light transmittance of the light entering the light guide 20 is improved.

기판(10)은 광원(15)이 라이트가이드(20)의 측면 내부에 배치될 수 있도록, 복수의 광원(15)을 장착한 상태로 라이트가이드(20)의 측면에 배치된다. 즉, 광원(15)이 장착된 기판(10)과, 라이트가이드(20)가 일체로 형성됨으로써, 기존의 기판(10) 및 라이트가이드(20)가 별도로 형성되는 구조에 비해 조립공정이 단순화된다.The substrate 10 is disposed on the side surface of the light guide 20 with the plurality of light sources 15 mounted so that the light source 15 can be disposed inside the side surface of the light guide 20. [ That is, since the substrate 10 on which the light source 15 is mounted and the light guide 20 are integrally formed, the assembling process is simplified compared to a structure in which the conventional substrate 10 and the light guide 20 are separately formed .

라이트가이드(20)는 광원(15)에서 생성된 빛을 전면으로 출광하는 출광부(22)와, 출광부(22)가 상기 빛을 전면으로 출광할 수 있도록 출광부(22)의 후면에 접해 배치되고 상기 빛을 전반사하는 패턴(25)이 전면에 돌출되어 형성된 반사부(24)로 이루어진다.The light guide 20 includes a light emitting portion 22 for emitting the light generated by the light source 15 to the front surface and a light emitting portion 22 for emitting light toward the front surface of the light emitting portion 22 so that the light emitting portion 22 can emit the light to the front surface And a reflecting portion 24 formed by protruding a pattern 25 for reflecting the light totally.

라이트가이드(20)의 측면에서 입사되는 광원(15)의 빛은, 반사부(24)에 돌출 형성된 복수의 패턴(25)에 의해 출광부(22)로 전반사되어 라이트가이드(20)의 전체에 걸쳐 균일해진 상태로 출광부(22)의 전면으로 출광된다.The light of the light source 15 incident on the side surface of the light guide 20 is totally reflected by the outgoing portion 22 by the plurality of patterns 25 protruding from the reflective portion 24, The light is output to the front surface of the light-exiting portion 22 in a state in which the light-

반사부(24)는 라이트가이드(20)의 후면을 형성한다. 반사부(24)는 광원(15)으로부터 입사되는 빛을 전반사할 수 있도록 패턴(25)이 전면에 돌출 형성된다. 기존에는 패턴(25)이 돌출되어 형성되지 않고, 반사부(24)의 전면에 함입되어 형성되었다. 따라서, 기존에는 반사부(24)의 전면에 함입되는 패턴(25)을 형성하기 위해, 금형 내에 패턴(25)에 대응되는 돌출부를 형성하여야 했는 바, 상기 금형 내에 상기 돌출부를 0.3mm 이하의 폭으로 형성하는 것은 현실적으로 불가능하므로, 반사부(24)의 전면에 함입되는 구조의 패턴(25) 또한 0.3mm 이하로 형성시키는 것은 불가능했었다.The reflecting portion 24 forms the rear surface of the light guide 20. The reflector 24 is formed with a pattern 25 protruding from the front surface so that light incident from the light source 15 can be totally reflected. The pattern 25 is formed not to protrude but to be embedded in the entire surface of the reflecting portion 24. [ Therefore, in order to form the pattern 25 embedded in the front surface of the reflective portion 24, a protrusion corresponding to the pattern 25 has to be formed in the mold. In this case, It is practically impossible to form the pattern 25 of the structure embedded in the entire surface of the reflection portion 24 to 0.3 mm or less.

하지만, 본 실시예에서 반사부(24)는 필름 재질로 형성되어서, 전면에 광원(15)으로부터 입사되는 빛을 전반사하는 복수의 패턴(25)을 돌출되게 인쇄함으로써, 상기 패턴의 높이 및 폭이 미세한 패턴으로 형성될 수 있다. 본 실시예에서 복수의 패턴(25)의 높이는 5~50 ㎛범위에서 서로 동일한 높이가 되도록 형성될 수 있으며, 복수의 패턴(25)의 폭도 수 마이크로미터 폭으로 형성될 수 있다. 다만, 광원(15)이 라이트가이드(20)의 측면에 배치되기 때문에, 라이트가이드(20)로부터 출광되는 빛이 균일해질 수 있도록, 복수의 패턴(25)의 폭은 광원(15)으로부터 멀어질수록 크게 형성되는 것이 바람직하다.However, in the present embodiment, the reflector 24 is formed of a film material, and a plurality of patterns 25, which totally reflect light incident from the light source 15, are protruded and printed on the entire surface, It can be formed in a fine pattern. In this embodiment, the height of the plurality of patterns 25 may be the same height in the range of 5 to 50 mu m, and the width of the plurality of patterns 25 may be several micrometers wide. Since the light source 15 is disposed on the side surface of the light guide 20, the width of the plurality of patterns 25 is made to be farther from the light source 15 so that the light emitted from the light guide 20 can be made uniform. It is preferable that the larger the number is.

라이트가이드(20)는 L 형상으로 형성되어서, 자동차의 외부로 배광되는 빛은 L형의 패턴으로 형성될 수 있다.The light guide 20 is formed in an L shape so that the light to be distributed to the outside of the automobile can be formed in an L-shaped pattern.

즉, 라이트가이드(20)는, 광원(15)이 배치되는 측면으로부터 일정구간 제1 높이로 형성된 제1 가이드부(26)와, 제1 가이드부(26)로부터 연장되고 일정구간 상기 제1 높이보다 낮은 제2 높이로 형성된 제2 가이드부(28)를 포함한다.That is, the light guide 20 includes a first guide portion 26 formed at a first height from a side surface on which the light source 15 is disposed, a second guide portion 26 extending from the first guide portion 26, And a second guide portion 28 formed at a second lower height.

이와 같이, 광원(15)이 제1 가이드부(26)의 측면에 배치되기 때문에, 반사부(24)의 전면에 복수 형성된 패턴(25)을 통해 라이트가이드(20)로부터 출광되는 빛이 전체적으로 균일해지도록 해야 한다.As described above, since the light source 15 is disposed on the side surface of the first guide portion 26, light emitted from the light guide 20 through the plurality of patterns 25 formed on the front surface of the reflective portion 24 is uniformly uniform You should make it happen.

특히, 제2 가이드부(28)의 높이가 제1 가이드부(26)의 높이에 비해 낮기 때문에, 제1 가이드부(26)에 배치되는 패턴은 제2 가이드부(28)에 배치되는 패턴에 비해 폭이 현저하게 낮아야 한다. 본 실시예에서는 반사부(24)가 필름 재질로 형성되어, 반사부(24)의 전면에 각각의 패턴(25)을 인쇄함으로써, 0.3mm 이하의 미세한 폭을 가지는 패턴(25)을 형성할 수 있다.Particularly, since the height of the second guide portion 28 is lower than the height of the first guide portion 26, the pattern disposed on the first guide portion 26 is formed in a pattern disposed on the second guide portion 28 The width must be significantly lower than the width. In the present embodiment, the reflective portion 24 is formed of a film material, and each pattern 25 is printed on the entire surface of the reflective portion 24 to form a pattern 25 having a fine width of 0.3 mm or less have.

다만, 각각의 패턴(25)은 광원(15)으로부터 멀어질수록 폭이 크게 형성되어, 라이트가이드(20)의 외부로 출광되는 빛이 균일해질 수 있도록 한다.Each of the patterns 25 is formed to have a greater width as the distance from the light source 15 increases, so that the light emitted to the outside of the light guide 20 can be made uniform.

한편, 반사부(24)는 후면이 상기 빛의 불투과성 재질로 이루어진다. 이와 같이, 반사부(24)의 후면이 상기 빛의 불투과성 재질로 형성되기 때문에, 라이트가이드(20)의 전면으로 출광되는 빛의 광효율을 높이기 위해, 기존의 라이트가이드(20)의 후면으로 빛이 투과되는 것을 방지하기 위해 라이트가이드(20)의 후면에 배치되었던 백커버가 필요치 않게 된다.On the other hand, the rear surface of the reflective portion 24 is made of the light-impermeable material. Since the rear surface of the reflective portion 24 is formed of the light-impermeable material, the light guide 20 may be provided with a light guide 20, The back cover disposed on the rear surface of the light guide 20 is not necessary.

또한, 출광부(22)는 라이트가이드(20)의 전면을 형성한다. 출광부(22)는 수지로 형성되며, 반사부(24)의 전면 위에 도포되어서 반사부(24)로부터 전반사되는 빛을 외부로 출광한다.Further, the light emitting portion 22 forms the front surface of the light guide 20. The light emitting portion 22 is formed of resin and is applied onto the front surface of the reflecting portion 24 to externally output the light totally reflected from the reflecting portion 24.

출광부(22)가 반사부(24)의 전면 위에 도포되기 전에, 광원(15)이 반사부(24)의 전면으로부터 상측에 위치하도록 기판(10)을 반사부(24)의 일측면에 맞댄 후, 출광부(22)를 반사부(24)의 전면 위에 도포하고, 출광부(22)를 경화기를 통해 경화시킴으로써 광원(15)이 출광부(22)에 매립된 상태로 라이트가이드(20)와 일체로 형성되게 된다.The substrate 10 is returned to one side of the reflecting portion 24 so that the light source 15 is positioned above the front surface of the reflecting portion 24 before the emitting portion 22 is coated on the front surface of the reflecting portion 24 The light emitting unit 22 is coated on the front surface of the reflecting unit 24 and the light emitting unit 22 is cured through the curing unit so that the light source 15 is embedded in the light emitting unit 22, As shown in FIG.

출광부(22)는 UV(Ultraviolet) 경화수지가 사용된다. UV 경화수지는 공기에 비해 굴절률이 높고, 열전도율 또한 높다. 본 실시예에서는 공기를 기준매질(굴절률=1)로 하였을 때, 광원(15)의 굴절률은 약 3인 LED가 사용되고, UV 경화수지의 굴절률은 약 1.5이다.UV (Ultraviolet) curable resin is used for the light emitting portion 22. UV cured resins have higher refractive index and higher thermal conductivity than air. In this embodiment, when the air is a reference medium (refractive index = 1), the LED 15 having a refractive index of about 3 is used, and the refractive index of the UV cured resin is about 1.5.

공기의 굴절률은 1이기 때문에, 광원(15)이 라이트가이드(20)의 내부에 배치되고 않고 라이트가이드(20)의 외부로 배치되는 기존의 경우에는, 광원(15) 및 공기의 굴절률의 차이는, 광원(15)의 굴절률 3에서 공기의 굴절률 1을 차감한 값인 2이다. 이러한 경우, 광원(15)으로부터 공기 중으로 나오는 전반사 임계각은 약 33.9도이다.The difference in the refractive indexes of the light source 15 and the air is reduced in the conventional case where the light source 15 is disposed inside the light guide 20 but outside the light guide 20 because the refractive index of air is 1 2 which is a value obtained by subtracting the refractive index 1 of air from the refractive index 3 of the light source 15. In this case, the total reflection critical angle from the light source 15 to the air is about 33.9 degrees.

반면, 본 실시예의 광원(15) 및 UV 경화수지의 굴절률의 차이는, 광원(15)의 굴절률 3에서 UV 경화수지의 굴절률 1.5를 차감한 값인 1.5로, 기존에 비해 굴절률의 차이가 적으며, 전반사 임계각 또한 약 52.4도로 기존에 비해 크기 때문에, 광효율이 향상된다.On the other hand, the difference in refractive index between the light source 15 and the UV curable resin of the present embodiment is 1.5, which is a value obtained by subtracting the refractive index 1.5 of the UV curable resin from the refractive index 3 of the light source 15, The total reflection critical angle is also about 52.4 degrees, which is larger than the conventional one, so that the light efficiency is improved.

또한, 기존에는 광원(15)에 생성된 빛에 의한 열을 냉각하기 위한 방열장치가 필요하였으나, 본 실시예에서는 라이트가이드(20)의 출광부(22)가 공기에 비해 열전도율이 월등히 높은 UV 경화수지로 형성되기 때문에, 방열장치가 필요하지 않게 된다.In the present embodiment, the light emitting unit 22 of the light guide 20 is provided with a UV curing unit having a heat conductivity which is much higher than that of air, Since it is formed of a resin, a heat radiation device is not required.

상기와 같이, 본 발명에 따른 자동차의 조명 장치는, 광원(15)의 빛을 전반사하는 패턴(25)이 반사부(24)에 돌출되어 형성되기 때문에, 패턴(25)의 폭을 미세한 폭으로 형성할 수 있어서, 상기 빛의 미세한 컨트롤이 가능해진다.As described above, in the automotive lighting apparatus according to the present invention, since the pattern 25 that totally reflects the light of the light source 15 is formed protruding from the reflecting portion 24, the width of the pattern 25 is made narrow So that the light can be finely controlled.

또한, 광원(15)이 라이트가이드(20)의 외부에 배치되지 않고 내부에 배치되기 때문에, 광원(15)에서 생성된 빛이 공기 중으로 나오는 과정에서 전반사되어 소멸되는 현상을 방지할 수 있어서 광효율이 향상되며, 광원(15) 및 라이트가이드(20) 사이에 공기층이 없기 때문에, 빛의 진행 매질이 줄어들어 라이트가이드(20)로 입사되는 빛의 투과율이 향상된다.Since the light source 15 is not disposed outside the light guide 20 but disposed inside the light guide 15, it is possible to prevent the light generated by the light source 15 from being totally lost during the process of being emitted into the air, Since there is no air layer between the light source 15 and the light guide 20, the progress of the light is reduced and the transmittance of the light incident on the light guide 20 is improved.

본 발명이 속하는 기술분야의 통상의 지식을 가진 자는 본 발명이 그 기술적 사상이나 필수적인 특징을 변경하지 않고서 다른 구체적인 형태로 실시될 수 있다는 것을 이해할 수 있을 것이다. 그러므로 이상에서 기술한 실시예는 모든 면에서 예시적인 것이며 한정적이 아닌 것으로 이해해야만 한다. 본 발명의 범위는 상기 상세한 설명보다는 후술하는 특허청구의 범위에 의하여 나타내어지며, 특허청구의 범위의 의미 및 범위 그리고 그 균등 개념으로부터 도출되는 모든 변경 또는 변형된 형태가 본 발명의 범위에 포함되는 것으로 해석되어야 한다.
It will be understood by those skilled in the art that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. It is therefore to be understood that the above-described embodiments are illustrative and non-restrictive in every respect. The scope of the present invention is defined by the appended claims rather than the foregoing detailed description, and all changes or modifications derived from the meaning and scope of the claims and the equivalents thereof are included in the scope of the present invention Should be interpreted.

10: 기판 15: 광원
20: 라이트가이드 22: 출광부
24: 반사부 25: 패턴
26: 제1 가이드부 28: 제2 가이드부10: substrate 15: light source
20: light guide 22: light emitter
24: reflection part 25: pattern
26: first guide portion 28: second guide portion

Claims (10)

빛을 생성하는 광원;
상기 빛을 전면으로 출광하는 출광부;
상기 출광부가 상기 빛을 전면으로 출광할 수 있도록 상기 출광부의 후면에 접해 배치되는 반사부로 이루어진 라이트가이드;를 포함하고,
상기 반사부는,
상기 광원으로부터 입사되는 빛을 전반사할 수 있도록 패턴이 전면에 돌출되게 형성되고,
상기 패턴이 복수로 서로 동일한 높이로 돌출되게 인쇄되어 형성되되,
상기 패턴의 폭은 상기 광원으로부터 멀어질수록 크게 형성되어 외부로 출광되는 빛이 균일해지는 자동차의 조명 장치.A light source for generating light;
A light emitting portion for emitting the light to the front surface;
And a light guide made up of a reflective portion disposed in contact with a rear surface of the light emitting portion so that the light emitting portion emits the light to the front surface,
The reflector includes:
A pattern is formed on the entire surface so that light incident from the light source can be totally reflected,
A plurality of the patterns are printed so as to protrude at the same height,
Wherein a width of the pattern is increased as the distance from the light source is increased, so that light emitted to the outside becomes uniform. 제1항에 있어서,
상기 광원은 상기 출광부에 매립되어 상기 라이트가이드와 일체로 형성되는 자동차의 조명 장치.The method according to claim 1,
Wherein the light source is embedded in the light emitting portion and formed integrally with the light guide. 제1항에 있어서,
상기 출광부는 공기보다 열전도율이 높은 UV경화수지로 형성되어,
상기 광원의 굴절률에서 상기 UV경화수지의 굴절률을 차감시 상기 광원으로부터 공기 중으로 나오는 전반사 임계각에 의해 광효율이 향상되는 자동차의 조명 장치.
The method according to claim 1,
The light emitting portion is formed of a UV curable resin having a higher thermal conductivity than air,
Wherein the light efficiency is improved by a total reflection critical angle of the light source to the air when the refractive index of the light source is subtracted from the refractive index of the UV curable resin.
삭제delete 삭제delete 삭제delete 삭제delete 삭제delete 삭제delete 삭제delete
KR1020120027749A 2012-03-19 2012-03-19 Lamp apparatus for an automobile KR101393346B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
KR1020120027749A KR101393346B1 (en) 2012-03-19 2012-03-19 Lamp apparatus for an automobile
CN201310043551.1A CN103322483B (en) 2012-03-19 2013-02-04 The lighting device of vehicle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020120027749A KR101393346B1 (en) 2012-03-19 2012-03-19 Lamp apparatus for an automobile

Publications (2)

Publication Number Publication Date
KR20130106104A KR20130106104A (en) 2013-09-27
KR101393346B1 true KR101393346B1 (en) 2014-05-09

Family

ID=49191407

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020120027749A KR101393346B1 (en) 2012-03-19 2012-03-19 Lamp apparatus for an automobile

Country Status (2)

Country Link
KR (1) KR101393346B1 (en)
CN (1) CN103322483B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20200125089A (en) * 2019-04-26 2020-11-04 현대모비스 주식회사 Light guide for vehicle

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102510943B1 (en) * 2018-09-28 2023-03-16 에스엘 주식회사 lamp for vehicle

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005504429A (en) 2001-10-03 2005-02-10 スリーエム イノベイティブ プロパティズ カンパニー Light guide that forms a substantially monochromatic beam
JP2012004003A (en) 2010-06-18 2012-01-05 Koito Mfg Co Ltd Lighting fixture for vehicle

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5101325A (en) * 1990-03-20 1992-03-31 General Electric Company Uniform illumination of large, thin surfaces particularly suited for automotive applications
DE102004028970A1 (en) * 2004-06-16 2006-02-02 Bayerische Motoren Werke Ag Light e.g. signal light, for motor vehicle, has light guiding unit whose side surfaces arranged between light emitting and reflection surfaces have transparent coating whose refractive index is smaller than refractive index of unit
CN101769449A (en) * 2008-12-30 2010-07-07 财团法人工业技术研究院 Thin-type lamp box
JP2011216279A (en) * 2010-03-31 2011-10-27 Koito Mfg Co Ltd Lamp fitting for vehicle

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005504429A (en) 2001-10-03 2005-02-10 スリーエム イノベイティブ プロパティズ カンパニー Light guide that forms a substantially monochromatic beam
JP2012004003A (en) 2010-06-18 2012-01-05 Koito Mfg Co Ltd Lighting fixture for vehicle

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20200125089A (en) * 2019-04-26 2020-11-04 현대모비스 주식회사 Light guide for vehicle
KR102668629B1 (en) * 2019-04-26 2024-05-24 현대모비스 주식회사 Light guide for vehicle

Also Published As

Publication number Publication date
KR20130106104A (en) 2013-09-27
CN103322483B (en) 2016-05-11
CN103322483A (en) 2013-09-25

Similar Documents

Publication Publication Date Title
JP6029298B2 (en) Vehicle lighting
KR102173117B1 (en) Lamp unit for vechile
KR20140028768A (en) A lamp apparatus for automobile and manufacturing method thereof
KR102288453B1 (en) Lamp apparatus for an automobile
KR101381862B1 (en) Automotive lamp assembly
KR101811433B1 (en) Lighting apparatus for an automobile
JP2016004705A (en) Vehicular lighting fixture
JP6164893B2 (en) Vehicle lighting
JP2017228420A (en) Light source unit and lighting fixture
KR101382458B1 (en) Lamp apparatus for an automobile
KR101393346B1 (en) Lamp apparatus for an automobile
KR101838711B1 (en) A lamp apparatus for automobile
JP6142464B2 (en) Vehicle lighting
KR101673655B1 (en) Lamp unit for vehicle
KR102064342B1 (en) Light source and lamp for vehicle having the same
US20180180260A1 (en) Vehicular lamp
JP5780840B2 (en) Vehicle lighting
KR101405238B1 (en) Lamp apparatus for an automobile
KR20100055984A (en) Rear lamp for vehicles
US11713858B2 (en) Vehicle lighting
KR20140011637A (en) Plane light source apparatus
JP5771577B2 (en) Vehicle lighting
KR101987295B1 (en) Lamp for vehicle
KR102672280B1 (en) Lighting apparatus
JP6035901B2 (en) Vehicle lighting

Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
E701 Decision to grant or registration of patent right
GRNT Written decision to grant
FPAY Annual fee payment

Payment date: 20180424

Year of fee payment: 5

FPAY Annual fee payment

Payment date: 20190425

Year of fee payment: 6