KR20120057454A - Light guide device for head lamp - Google Patents

Light guide device for head lamp Download PDF

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Publication number
KR20120057454A
KR20120057454A KR1020100119190A KR20100119190A KR20120057454A KR 20120057454 A KR20120057454 A KR 20120057454A KR 1020100119190 A KR1020100119190 A KR 1020100119190A KR 20100119190 A KR20100119190 A KR 20100119190A KR 20120057454 A KR20120057454 A KR 20120057454A
Authority
KR
South Korea
Prior art keywords
light guide
light
guide device
headlamp
bezel
Prior art date
Application number
KR1020100119190A
Other languages
Korean (ko)
Other versions
KR101219808B1 (en
Inventor
최성욱
Original Assignee
현대자동차주식회사
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 현대자동차주식회사 filed Critical 현대자동차주식회사
Priority to KR1020100119190A priority Critical patent/KR101219808B1/en
Publication of KR20120057454A publication Critical patent/KR20120057454A/en
Application granted granted Critical
Publication of KR101219808B1 publication Critical patent/KR101219808B1/en

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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
    • F21S43/242—Light guides characterised by the emission area
    • F21S43/243—Light guides characterised by the emission area emitting light from one or more of its extremities
    • 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
    • F21S41/20—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
    • F21S41/24—Light guides
    • 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
    • F21S41/20—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
    • F21S41/29—Attachment thereof
    • 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
    • F21S43/239—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
    • F21S43/236—Light guides characterised by the shape of the light guide
    • F21S43/241—Light guides characterised by the shape of the light guide of complex shape
    • 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
    • G02B6/0013—Means for improving the coupling-in of light from the light source into the light guide
    • G02B6/0015—Means for improving the coupling-in of light from the light source into the light guide provided on the surface of the light guide or in the bulk of it
    • G02B6/0016—Grooves, prisms, gratings, scattering particles or rough surfaces
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2102/00—Exterior vehicle lighting devices for illuminating purposes

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

Abstract

PURPOSE: A light guide apparatus for a head lamp is provided to increase uniformity by forming a light guide unit into multi-phase and diffusing light passing through the light guide unit to the multi-phase. CONSTITUTION: A bezel(300) is located between a lens(100) and head lamp housing(200). A light guide apparatus(400) is formed along the girth of the front side of the bezel. The light guide apparatus is inserted into a bonding groove formed along the girth of the front side of the bezel. An optical source unit(420) is inserted into the bottom of the bonding groove. A light guide unit(410) of a dual structure is composed of a first diffusing unit(411) and a second diffusing unit(412). The first diffusing unit is combined with the bonding groove. The second diffusing unit is extended along the bezel.

Description

Light guide device for head lamps

The present invention relates to a headlamp light guide device for distributing light through a predetermined portion of the bezel surrounding the headlamp.

In general, the headlamp 1 of an automobile includes a lens 10 and a headlamp housing 20, as shown in FIG. 1, and a bezel between the lens 10 and the headlamp housing 20. 30 is provided.

On the other hand, it can be seen that the high-end vehicle has a light distribution unit provided in the front edge of the bezel in order to distribute the light in addition to the structure of the headlamp as described above.

That is, the conventional light guide device 40 for headlamps, as shown in Figs. 1 and 2, is provided in the front edge of the bezel 30 and the light guide portion 41 for light distribution; It includes a light source unit 42 for generating and emitting light guided by the light guide portion 41.

That is, the light of the light source unit 42 has a structure in which the light is directly visible to the outside through the light guide unit 41.

However, the light guide device for a head lamp according to the related art is inferior in uniformity of light because the light of the light source unit 42 passes directly through the light guide unit 41. As shown in Fig. 42, the product quality is lowered, and the uniformity of the light is remarkably inferior since the light of the light source part 42 passes directly through the light guide part 41.

The technical problem to be solved by the present invention for solving the above-described problems is to configure the light guide unit in multiple stages to ensure the light passing through the light guide unit in multiple stages to increase the uniformity, and to position the light source to be invisible through the light guide unit It is to provide a light guide device for a head lamp by changing the productability.

As a means for achieving the above-described technical problem, the headlamp light guide device of the present invention is a headlamp ride comprising a light guide portion coupled to the coupling groove formed along the edge of the bezel, and a light source unit provided in the coupling groove As the guide device, the light guide portion includes a first diffusion portion coupled to the coupling groove and a second diffusion portion extending along the bezel.

An inclined reflective surface is formed on the inner surface of the coupling groove.

The first diffusion part and the second diffusion part are connected through a connection part.

The front or rear surface of the first diffusion part is formed to be inclined, and a plurality of raised embossings are formed.

The back surface of the second diffusion part is formed to be inclined, and a plurality of raised embossings are formed.

The light source unit is provided inside the recessed groove formed on the bottom surface of the coupling groove.

According to the present invention, the light guide unit is configured in multiple stages to ensure light passing through the light guide unit in multiple stages, thereby increasing uniformity, and changing the position so that the light source unit is not visible through the light guide unit.

1 shows a headlamp of the prior art;
2 is a view showing a light guide device for a head lamp of the prior art.
3 is a view showing a light guide device for a head lamp of the present invention.
4 is a view showing another embodiment of a light guide device for a headlamp of the present invention.

DETAILED DESCRIPTION Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art may easily implement the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. In the drawings, parts irrelevant to the description are omitted in order to clearly describe the present invention, and like reference numerals designate like parts throughout the specification.

The headlamp light guide device 400 of the present invention inserts the light source unit 420 into the bottom surface of the coupling groove 310 formed along the front edge of the bezel (300), and is formed in the coupling groove (310). By combining the light guide part 410 having a dual structure including the first and second diffuser parts 421 and 422, the problem of exposing the light source part from the outside can be solved. The uniformity of the can be increased, thereby increasing the commerciality.

As the headlamp of the present invention as shown in FIG. 3, the lens 100 and the headlamp housing 200 are coupled to each other, and a high beam and a low beam are disposed between the lens 100 and the headlamp housing 200. A bezel 300 is provided to be mounted, and a light guide device 400 is provided along a front edge of the bezel 300 on which the high beam and the low beam are mounted, and the light guide device 400 is a bezel. It is inserted into the coupling groove 310 formed along the front edge of the (300).

On the other hand, the bottom surface of the coupling groove 310, that is, the bottom surface when viewed in Figure 2 is a recessed groove 320 or a hole (not shown) formed to be recessed to the bottom is formed, the recessed groove 320 ) Is inserted into the light source 420 to be described later completely invisible.

In addition, the inner surface of the coupling groove 310, that is, the right vertical surface when viewed in FIG. 2 forms a reflective surface 330 that is inclined downward, and the reflective surface 330 is perpendicular to the rear side of the recessed groove 320. It is provided to reflect the light of the light source unit 420 inserted into the recessed groove 320 toward the front of the vehicle.

Here, the reflective surface 330 may be attached to a mirror or a silver foil to increase the reflectivity of light, it is formed to be inclined in a curve to increase the reflection and diffusion.

The light guide device 400 is made of a transparent or translucent material, as shown in Figure 3, the light guide portion 410 is coupled to the coupling groove 310 of the bezel 300, and the coupling groove It includes a light source unit 420 is inserted into the recessed groove 320 formed on the bottom surface of (310).

The light guide part 410 includes a first diffusion part 411 coupled to the coupling groove 310 and a second diffusion part 412 formed in front of the bezel 300. The portion 411 and the second diffusion portion 412 are connected to each other through the connection portion 413, and the connection portion 413 has a thickness smaller than that of the first and second diffusion portions 411 and 412. This is to prevent the light transmitted to the second diffuser 412 through the first diffuser 411 from being reduced by the connector 413.

Here, the first diffusion part 411, the second diffusion part 412, and the connection part 413 are integrally formed.

The first diffusion part 411 is inserted into and coupled to the coupling groove 310, and is formed to be inclined upwardly, and is protruded on the front surface (a surface facing the front of the vehicle) and the rear surface (a surface facing the rear of the vehicle). A plurality of embossing (411a) is formed, and the light is diffused through the embossing (411a) to increase the uniformity of the light.

The second diffusion part 412 extends from the front end to the rear end of the bezel 300, and is coated with white, red, black, green, orange, and the like on the upper surface to increase visual luxury. The rear surface (the surface facing the rear of the vehicle) forms an inclined surface parallel to the second diffusion portion 411 described above, and a plurality of raised embossings 412a are formed, and the first diffusion is made by the embossing 412a. The light diffused first through the unit 411 may be secondarily diffused to further increase the uniformity of light.

The light source unit 420 is provided to be fully inserted into the recessed groove 320, thereby increasing the luxury because the light source unit 420 is not exposed to the outside through the light guide unit 410.

The headlamp light guide device 400 of the present invention having such a configuration is primarily diffused while the light emitted from the light source unit 420 is reflected to the front of the vehicle to the reflective surface 330 of the inner surface of the coupling groove 310, The first diffused light passes through the first diffuser 411 of the light guide unit 410, and passes through the embossing 412a formed on the front and rear surfaces of the first diffuser 411, respectively. The light diffused in all directions and the third diffused light passes through the second diffuser 412. At this time, the light guide portion 410 is diffused in all directions by the embossing 412a of the second diffuser 412. Uniform illuminance can be achieved throughout.

Hereinafter, in describing another embodiment of the headlamp light guide device of the present invention, the same reference numerals are used for components having the same or similar configurations and functions as the above-described embodiments, and redundant descriptions thereof will be omitted.

4 is another embodiment of a light guide device for a head lamp of the present invention.

As shown in FIG. 4, the light guide device 400 ′ for the head lamp according to the present embodiment is disposed in the same manner as in the prior art, and the light source 420 ′ is disposed on the rear surface of the light guide 410 ′. 410 ′ is formed as the first and second diffusers 411 ′ and 412 ′ to diffuse light first and second through the first diffuser 411, and the second diffuser 412 ′. The light is diffused in the third order to uniformly adjust the illuminance of the light passing through the light guide part 410 '.

The scope of the present invention is defined by the appended claims rather than the detailed description and all changes or modifications derived from the meaning and scope of the claims and their equivalents are to be construed as being included within the scope of the present invention do.

100: lens 200: headlamp housing
300: bezel 400: light guide device
410: light guide unit 420: light source unit

Claims (6)

A light guide unit coupled to the coupling groove formed along the edge of the bezel, and a light guide unit for a headlamp including a light source provided in the coupling groove,
The light guide unit includes a first diffuser coupled to the coupling groove and a light guide device for a headlamp comprising a second diffuser extending along the bezel. The method according to claim 1,
Light guide device for a head lamp to form an inclined reflective surface on the inner surface of the coupling groove. The method according to claim 1,
The light guide device for a headlamp, wherein the first diffusion portion and the second diffusion portion are connected through a connection portion. The method according to claim 1,
The front or rear surface of the first diffusion portion is formed to be inclined, the light guide device for a headlamp is formed a plurality of raised embossing. The method according to claim 1,
The rear surface of the second diffusion portion is formed to be inclined, the light guide device for a headlamp is formed a plurality of raised embossing. The method according to claim 1,
The light source unit for the headlamp light guide is provided in the recessed groove formed on the bottom surface of the coupling groove.
KR1020100119190A 2010-11-26 2010-11-26 Light guide device for head lamp KR101219808B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020100119190A KR101219808B1 (en) 2010-11-26 2010-11-26 Light guide device for head lamp

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020100119190A KR101219808B1 (en) 2010-11-26 2010-11-26 Light guide device for head lamp

Publications (2)

Publication Number Publication Date
KR20120057454A true KR20120057454A (en) 2012-06-05
KR101219808B1 KR101219808B1 (en) 2013-01-08

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104251434A (en) * 2013-06-27 2014-12-31 鸿富锦精密工业（深圳）有限公司 Illumination device of automotive vehicle
KR20180003469A (en) * 2016-06-30 2018-01-09 오토모티브 라이팅 이탈리아 에스.피.에이 Vehicle light comprising a portion of light emission with opalescent effect
EP3354977A1 (en) * 2017-01-27 2018-08-01 PSA Automobiles SA Lighting device with light guide mounted on a supporting part incorporating a transparent magnification screen
CN108571706A (en) * 2017-03-07 2018-09-25 标致雪铁龙汽车股份有限公司 Light source and light guide are simplified and pinpoint lighting device
CN110230799A (en) * 2018-03-05 2019-09-13 现代自动车株式会社 The light guide of vehicle
EP3660393A1 (en) * 2018-11-30 2020-06-03 Valeo Iluminacion, S.A. Automotive lighting device

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101734692B1 (en) 2015-10-19 2017-05-11 현대자동차주식회사 Light guide apparatus

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008103273A (en) * 2006-10-20 2008-05-01 Ichikoh Ind Ltd Vehicular lighting fixture
KR20100000832A (en) * 2008-06-25 2010-01-06 현대자동차주식회사 A head-lamp for a vehicle

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104251434A (en) * 2013-06-27 2014-12-31 鸿富锦精密工业（深圳）有限公司 Illumination device of automotive vehicle
KR20180003469A (en) * 2016-06-30 2018-01-09 오토모티브 라이팅 이탈리아 에스.피.에이 Vehicle light comprising a portion of light emission with opalescent effect
EP3354977A1 (en) * 2017-01-27 2018-08-01 PSA Automobiles SA Lighting device with light guide mounted on a supporting part incorporating a transparent magnification screen
FR3062453A1 (en) * 2017-01-27 2018-08-03 Peugeot Citroen Automobiles Sa LIGHT GUIDE LIGHTING DEVICE MOUNTED ON A CARRIER PART INCORPORATING A TRANSPARENT EXPANSION SCREEN
CN108361651A (en) * 2017-01-27 2018-08-03 标致雪铁龙汽车股份有限公司 Lighting device with the light guide on the support element for being integrated with transparent amplification screen
CN108361651B (en) * 2017-01-27 2022-04-01 标致雪铁龙汽车股份有限公司 Lighting device with light guide mounted on support integrated with transparent magnifying screen
CN108571706A (en) * 2017-03-07 2018-09-25 标致雪铁龙汽车股份有限公司 Light source and light guide are simplified and pinpoint lighting device
CN108571706B (en) * 2017-03-07 2022-02-18 标致雪铁龙汽车股份有限公司 Lighting device with simplified and precisely positioned light source and light guide
CN110230799A (en) * 2018-03-05 2019-09-13 现代自动车株式会社 The light guide of vehicle
CN110230799B (en) * 2018-03-05 2022-07-05 现代自动车株式会社 Light guide for a vehicle
EP3660393A1 (en) * 2018-11-30 2020-06-03 Valeo Iluminacion, S.A. Automotive lighting device

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