KR102012744B1 - Automobile lamp - Google Patents

Automobile lamp Download PDF

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Publication number
KR102012744B1
KR102012744B1 KR1020120147658A KR20120147658A KR102012744B1 KR 102012744 B1 KR102012744 B1 KR 102012744B1 KR 1020120147658 A KR1020120147658 A KR 1020120147658A KR 20120147658 A KR20120147658 A KR 20120147658A KR 102012744 B1 KR102012744 B1 KR 102012744B1
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KR
South Korea
Prior art keywords
light
guide member
light source
light guide
vehicle
Prior art date
Application number
KR1020120147658A
Other languages
Korean (ko)
Other versions
KR20140078372A (en
Inventor
이정오
안경수
Original Assignee
엘지이노텍 주식회사
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Priority to KR1020120147658A priority Critical patent/KR102012744B1/en
Publication of KR20140078372A publication Critical patent/KR20140078372A/en
Application granted granted Critical
Publication of KR102012744B1 publication Critical patent/KR102012744B1/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
    • F21S43/249—Light guides with two or more light sources being coupled into the light guide
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
    • F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
    • F21K9/60—Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction
    • F21K9/61—Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction using 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
    • 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
    • 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
    • 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
    • F21S43/40—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the combination of reflectors and refractors
    • 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
    • G02B6/0038—Linear indentations or grooves, e.g. arc-shaped grooves or meandering grooves, extending over the full length or width of the light guide
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V2200/00—Use of light guides, e.g. fibre optic devices, in lighting devices or systems
    • F21V2200/20—Use of light guides, e.g. fibre optic devices, in lighting devices or systems of light guides of a generally planar shape

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • Optics & Photonics (AREA)
  • General Physics & Mathematics (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Planar Illumination Modules (AREA)

Abstract

The present invention relates to a surface light source for a vehicle that can increase light efficiency, and particularly includes a light source module including a plurality of light sources and an optical guide member for guiding light emitted from the light source, wherein the light is formed on the surface of the optical guide member. It is characterized by providing a surface light for a vehicle including a reflection pattern.

Description

Car surface lighting {Automobile lamp}

The present invention relates to a surface light source for a vehicle that can increase the light efficiency.

Lighting units utilizing various light sources used in electronic devices are implemented in such a way as to increase light efficiency by utilizing suitable light sources according to the characteristics of each electronic device.

Recently, the lighting unit used in such an electronic device is a backlight unit applied to a flat panel display, an indoor light used in an indoor environment, or a head light, a fog light, a retracted light, a vehicle width light, a number light, a tail light, a braking light, a direction installed in an exterior of a vehicle It can be variously applied to indicator lights, emergency flashing lights, and interior lightings installed inside a vehicle.

However, most of such lighting is a method of approaching in terms of the brightness of the surface light source by applying a member such as a light guide plate for efficient transmission of light for providing light.

For example, FIG. 1 briefly illustrates a structure of a lighting apparatus used in a conventional vehicle.

As shown in FIG. 1, the conventional vehicle light guide includes a light source 10 emitting light having a predetermined light emission angle and a total reflection part 20 totally reflecting light emitted from the light source 10. The total reflection part 20 is generally configured such that two parallel first total reflection surfaces 21 and second total reflection surfaces 22 are formed in a case shape having an inner space. A scattering point 30 is formed inside the total reflection part 20 to disperse the light as shown in FIG. 1, and light passing through the total reflection part 20 is dispersed through the scattering point 30 and is outside. It is configured to emit light. That is, the light incident from the light source 10 to the total reflection part 20 travels along the total reflection part 20 through a process of being reflected through the first and second total reflection surfaces 21 and 22 of the total reflection part 20. And is distributed through the dispersion point 30 and emits light toward the right direction in the traveling direction. However, since the conventional vehicle light guide is mounted on the rear lamp of the vehicle body in a general level, there is a problem that the buyer can select a vehicle through a design in a deteriorated aesthetics.

To overcome this limitation, as shown in (b) of FIG. 1, a bezel 1 having a housing shape and a light source 2 inserted into the bezel 1 and emitting light to the rear lamp of the vehicle and the light source (2) guides the light emitted from the vehicle, but the vehicle lighting is composed of a light guide panel 3, the inner side of the upper guide panel 3, the light guide panel 3 is inserted into the printed pattern (3-1) Has proposed a structure that increases the design effect by having a printed pattern inside, but the light extraction efficiency is reduced by using the printed pattern, there is a problem in the reliability of the printing ink, the light source is inserted only on one side And there is a limit in meeting the light distribution.

Korean Patent Publication No. 10-1181012

The present invention has been made to solve the above problems, an object of the present invention can maximize the light extraction efficiency by implementing a light reflection pattern to improve the light extraction efficiency on the surface of the light guide member used for the surface light for vehicles In addition, the present invention provides a surface lighting for a vehicle capable of improving luminous intensity and light distribution by adjusting an arrangement of a light source array.

As a means for solving the above problems, the present invention provides a light source module including a plurality of light sources; It includes; a light guide member for guiding the light emitted from the light source, to provide a surface light for a vehicle including a light reflection pattern formed on the surface of the light guide member.

According to the present invention, by implementing a light reflection pattern to improve the light extraction efficiency on the surface of the light guide member used for the surface light of the vehicle to maximize the light extraction efficiency, and to adjust the arrangement of the light source array to improve the light intensity and light distribution There is also an effect.

1 is a conceptual diagram showing the structure of a conventional vehicle lighting apparatus.
2 is a conceptual view illustrating main parts of a surface light of a vehicle according to the present invention, and FIG. 3 is a conceptual view illustrating a sectional view taken along line AA ′ of FIG. 2.
4 and 5 are conceptual views illustrating various application examples of the light reflection pattern described above with reference to FIG. 3.
6 illustrates an embodiment of a surface light for a vehicle according to the present invention described above with reference to FIGS. 2 to 5.
7 and 8 illustrate a result of measuring a light reflection pattern by etching the light guide member according to the present invention, and measuring the surface reflection characteristics (BSDF) of the light guide member thus manufactured.
9 and 10 illustrate a result of measuring the light reflection pattern on the light guide member by applying the above-described sanding method, and measuring the surface reflection characteristics (BSDF) of the light guide member thus manufactured.

Hereinafter, with reference to the accompanying drawings will be described in detail the configuration and operation according to the present invention. In the description with reference to the accompanying drawings, the same components are given the same reference numerals regardless of the reference numerals, and duplicate description thereof will be omitted. Terms such as first and second may be used to describe various components, but the components should not be limited by the terms. The terms are used only for the purpose of distinguishing one component from another.

The present invention implements a surface light source applied to a vehicle lighting, by implementing a light reflection pattern to maximize the light extraction efficiency on the surface of the light guide member, to provide a surface light to achieve curvature, through a variety of shapes It is an object of the present invention to improve the degree of freedom of design by manufacturing a light guide member.

2 is a conceptual view illustrating main parts of a surface light for a vehicle according to the present invention, and FIG. 3 is a conceptual view illustrating a sectional view taken along line A-A 'of FIG. 2.

2 and 3, the surface light for a vehicle according to the present invention includes a light source module including a plurality of light sources 120, and an optical guide member 140 for guiding light emitted from the light source 120. It includes, but comprises a light reflection pattern 141 formed on the surface of the light guide member 140.

In particular, in this case, the light source module is preferably disposed on one side or both sides of the light guide member 140 to supply light into the light guide member 140 in an edge type. In this case, on the surface of the light guide member 140 is formed a light reflection pattern 141 of the intaglio irregularities in the depth direction to increase the light reflectivity, thereby improving the light extraction efficiency.

As shown in FIG. 3, the light reflection pattern 141 is formed in the depth direction of the light guide member to guide the light emitted from the light source disposed on the side of the light guide member 140 to guide the light forward. The pattern of the uneven structure may be formed, and as the method of forming the pattern, an etching method, a sanding method, or the like may be used. In the etching method, scattering characteristics can be controlled by adjusting the density, shape (circle, oval, triangle) of the pattern, and depth of the pattern, and guiding the light from the light source into the light guide member to be required for light uniformity and a vehicle lamp. It can be implemented to form a light distribution standard that satisfies the light distribution law.

Furthermore, in the sanding method, the scattering characteristics can be controlled by adjusting the type of propellant (Glass bead, Zirconia bead, White alumina, etc.), sanding conditions (pressure, speed, distance), and The emitted light can be guided into the optical guide member to satisfy the light uniformity and the light distribution standard.

Alternatively, in forming the light reflection pattern, the two methods may be used individually or in combination, and the light distribution standard and the luminous intensity standard may be satisfied by adjusting the Gaussian and Lambertian characteristics through pattern processing. .

In particular, in the case of the surface lighting for vehicles, the lighting is curvature-shaped rather than flat, depending on the installation position and structure, which is subject to the limitation of the shape, in the case of the above-described etching and sanding method of the shape to be processed Less constraints, by processing the pattern on the mold and injecting the light guide member, it is possible to produce a variety of curves, twisted shapes, etc., it is possible to implement a variety of designs.

As shown in FIG. 3, a light source module is disposed on a side surface of the light guide member 140, and the light source module includes a printed circuit board 110 on which the light source 120 is mounted. It may be configured to include a re-reflective member 130 formed on the periphery of the 120, reflecting the emitted light to re-induced into the light guide member 140. The re-reflective member may be formed of a material including any one of Al, PC, PP, ABS, and PBT. The light source 120 is implemented as a structure mounted on the printed circuit board 110, and may be applied to either a side view type light emitting diode or a top view type light emitting diode. In addition, as shown in the figure, the light output direction of the light source 120 is not directed directly to the inside of the light guide member 140, but emits light in the upper emission type, through the re-reflection member 130 It can be implemented in a structure to guide the inside of the light guide member 140. In particular, in this case, the re-reflective member 130 has the advantage of improving the entry efficiency of the light by re-reflecting the leakage light of the light emitted from the mutually opposite directions.

The printed circuit board 110 refers to a substrate having a circuit pattern formed on the substrate, that is, a PCB. In the present invention, the printed circuit board 110 is preferably a printed circuit board made of a transparent material. Conventional vehicle lamps are opaque by using FR4 printed circuit boards, but transparent materials, in particular transparent PET printed circuit boards, can be provided by using a transparent material as in the present invention. In addition, in the present invention, it is possible to form a flexible printed circuit board (FPCB) in order to secure a certain flexibility.

The optical guide member 140 may perform a function of guiding light by using a synthetic resin material of a transparent material, and for this purpose, a reflective pattern 141 is provided on a surface to increase the reflectance of light therein. You can do that. The reflective pattern may form intaglio irregularities on the surface of the pre-formed optical guide member in consideration of various curvatures in which the tail light of the vehicle is disposed, and may be implemented by etching or sand blast. .

In particular, the optical guide member 140 according to the present invention is polymethyl methacrylate (PMMA), polystyrene (PS), cyclic olefin copoly (COC), polyethylene terephthalate (PET), acrylic resin, urethane acrylate ( Urethane Acrylate, Epoxy Acrylate, Polyester Acrylate, Polyether Acrylate, Polybutadiene Acrylate, Silicon Acrylate It can be implemented through the injection process using a single transparent resin. Of course, in this case, the light guide member 140 has silicon, silica, glass bubble, PMMA, urethane, Zn, Zr, Al 2 O 3 , and acryl. The light extraction efficiency may be maximized by inserting a diffusion material for diffusing light composed of at least one selected from the beads into beads. An example of such a diffusion material may further include a plurality of beads in which a hollow (or void) is formed therein and mixed and diffused, and the beads serve to improve reflection and diffusion characteristics of light.

In addition, as shown in Figure 3, it is preferable that the lower portion of the light guide member according to the present invention further comprises a reflective member 160.

The reflective member 160 is formed of a material having high reflection efficiency, thereby reflecting the light emitted from the light source 160 to the upper portion where the light guide member 140 is located to reduce the light loss.

The reflective member 160 may be formed in the form of a film, and may be formed to include a synthetic resin containing dispersion of a white pigment in order to implement a property of promoting light reflection and light dispersion.

For example, titanium oxide, aluminum oxide, zinc oxide, lead carbonate, barium sulfate, calcium carbonate may be used as the white pigment, and polyethylene terephthalate, polyethylene naphthalate, acrylic resin, colicarbonate, polystyrene, polyolefin may be used as the synthetic resin. , Cellulose source acetate, weather resistant vinyl chloride, etc. may be used, but is not limited thereto. A reflective pattern may be formed on the surface of the reflective member 160, and the reflective pattern serves to uniformly transmit the light to the optical guide member 140 by scattering and dispersing incident light. The reflection pattern may be formed by printing on the surface of the reflective member 160 using a reflective ink including any one of TiO 2 , CaCo 3 , BaSo 4 , Al 2 O 3 , Silicon, and PS, but is not limited thereto. .

As the reflective member 160, transparent PET may be used instead of the film. In addition, a reflection pattern is provided on the surface of the reflection member to increase reflection efficiency, and the reflection pattern has a structure having a plurality of protruding patterns, and a dot (dot) to increase the light scattering effect. ), But may be formed in a pattern shape, a prism shape, a lenticular shape, a lens shape, or a combination thereof, but is not limited thereto. In addition, the cross-sectional shape of the reflective pattern may be formed of a structure having various shapes such as a triangle, a square, a semicircle, and a sinusoidal wave.

In addition to the structure of the light source module having the structure shown in FIG. 3, the surface light source for a vehicle according to the present invention forms a mounting groove 142 in a part of the interior of the light guide member 140, as shown in FIG. 2. It is also possible to implement a structure that further includes an internal light source group 210 of a structure for mounting a light source such as LED therein. The rear light source of the vehicle, such as a direction indicator light or a braking light to form a different area for transmitting the signal to implement a different light, the internal light source group 210 is further formed, the mounting groove 142 is formed The light may be guided to the inside of the one region 200. In this case, the above-described light reflection pattern may be implemented on the surface of the light guide member corresponding to the one region 200.

4 and 5 are conceptual views illustrating various application examples of the light reflection pattern described above with reference to FIG. 3.

As described above, the light reflection pattern 141 according to the present invention is implemented in a concave-convex structure (engraved shape) on the surface of the light guide member 140, and is a hemispherical shape as shown in FIG. 3, a pyramid shape as shown in FIG. 4, or FIG. It is possible to combine in various shapes such as the combination structure of hemispherical and pyramid like 5.

6 illustrates an embodiment of a surface light for a vehicle according to the present invention described above with reference to FIGS. 2 to 5.

Basically, in the structure of the vehicle surface lighting 100 including the light guide member and the light source module described above in FIG. 2, a reflecting member 160 is disposed at the bottom, a diffusion plate 170 at the top, and an upper portion of the diffusion plate 170. The external lens 180 disposed may be further coupled to implement a surface light for a vehicle. The reflective member 160 may be implemented with various materials as described above. For example, a white resin may be applied to improve the reflectance, and in the case of the diffusion plate 170, a diffusing agent or surface roughness may be used. Various textures can be provided to adjust the appearance of aesthetics when turned on.

The surface roughness of the diffusion plate 170 may be applied to the above-described etching or sanding method.

7 and 8 illustrate a result of measuring a light reflection pattern by etching an optical guide member according to the present invention and measuring the surface reflection characteristics (BSDF) of the optical guide member thus manufactured. 7 is a result of measuring the scattering peak for each etching angle, Figure 8 is a result of measuring the ratio of the lemversian and Gaussian by the etching angle, as a result, the amount of Gaussian is increased, Ra is also increased, the transfer of lemversian It can be seen that the increased, the scattering characteristics can be adjusted by adjusting the light reflection pattern according to the present invention.

9 and 10 are results of measuring the light reflection pattern on the light guide member by applying the above-described sanding method, and measuring the surface reflection characteristics (BSDF) of the light guide member thus manufactured, measured in FIGS. 7 and 8. Similar to the result, it can be seen that the amount of Gaussian is increased, Ra is also increased, and the amount of lemversian is increased, and thus the scattering characteristics can be adjusted by adjusting the light reflection pattern according to the present invention.

The surface light source for a vehicle according to the present invention described above may be applied to a tail light & a stop light and a turn signal. That is, the lighting device according to the present invention is applicable to various lamp devices that require lighting, such as a vehicle lamp, a home lighting device, an industrial lighting device. For example, when applied to a vehicle lamp, it is also applicable to headlights, vehicle interior lighting, doorscar, rear lights and the like. In addition, the lighting apparatus of the present invention can be applied to the field of the backlight unit applied to the liquid crystal display device, and can be applied to all the lighting related fields that are currently developed and commercialized or can be implemented according to future technology development.

In the detailed description of the invention as described above, specific embodiments have been described. However, many modifications are possible without departing from the scope of the invention. The technical spirit of the present invention should not be limited to the described embodiments of the present invention, but should be determined not only by the claims, but also by those equivalent to the claims.

110: printed circuit board
120: light source
130: re-reflective member
140: optical guide member
141: light reflection pattern
142: mounting groove
160: reflective member
210: internal light source group

Claims (13)

Reflective member;
An optical guide member disposed on the reflective member;
A plurality of light reflection patterns disposed on an upper surface of the reflective member and buried by the light guide member;
A light source module disposed on the side of the light guide member; And
It is disposed spaced apart from the light source module, and includes a re-reflection member having a curvature,
The light source module includes a printed circuit board and a plurality of light sources disposed on the printed circuit board,
The light source is a top light emitting diode,
Light emitted from the plurality of light sources is reflected inside the re-reflective member to be incident to the side of the light guide member, and light incident from the side of the light guide member is reflected to the light reflection pattern to reflect the light guide member. Light is emitted to the top of the
The re-reflective member is disposed spaced apart from one side of the printed circuit board, the surface light for a vehicle is formed higher than the height of the light guide member. The method according to claim 1,
The light reflection pattern is a concave-convex irregularities are formed in the depth direction of the light guide member, the concave-convex surface comprises a hemispherical or pyramidal or a combination structure of hemispherical and pyramidal. delete The method according to claim 2,
The density of the light reflection pattern is differently disposed according to the position, the light reflection pattern is a vehicle surface illumination is increased in the pattern density from the light source module toward the center of the light guide member. delete delete The method according to any one of claims 1,2 and 4,
The light reflection pattern is a vehicle surface lighting comprising any one material of TiO 2 , CaCO 3 , BaSO 4 , Al 2 O 3 , Silicon, PS. The method according to any one of claims 1,2 and 4,
The reflective member is a vehicle surface lighting of any one of transparent PET, white PET, Ag sheet. The method according to any one of claims 1,2 and 4,
The optical guide member is composed of at least one selected from silicon, silica, glass bubble, PMMA, urethane, Zn, Zr, Al 2 O 3 , and acryl. The vehicle surface lighting further comprising a diffusing material for diffusing light. The method according to any one of claims 1,2 and 4,
The light guide member further comprises a mounting groove for mounting a plurality of light sources in one region, and an internal light source group inserted into the mounting groove. The method according to claim 10,
The internal light source group is a surface light for a vehicle for emitting light toward the center of the inner region formed by the mounting groove. The method according to any one of claims 1,2 and 4,
And a diffusion plate disposed on the light guide member and an external lens disposed on the diffusion plate. delete
KR1020120147658A 2012-12-17 2012-12-17 Automobile lamp KR102012744B1 (en)

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KR1020120147658A KR102012744B1 (en) 2012-12-17 2012-12-17 Automobile lamp

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Application Number Priority Date Filing Date Title
KR1020120147658A KR102012744B1 (en) 2012-12-17 2012-12-17 Automobile lamp

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KR20140078372A KR20140078372A (en) 2014-06-25
KR102012744B1 true KR102012744B1 (en) 2019-08-21

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KR102283108B1 (en) * 2020-12-04 2021-07-29 주식회사 삼광테라피 Light guide plate structure of double layer and manufacturing method thereof

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KR20160026403A (en) * 2014-09-01 2016-03-09 엘지전자 주식회사 Head light and method for emitting light the same
KR102435848B1 (en) * 2015-03-31 2022-08-24 서울반도체 주식회사 Light device of vehicle
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