KR20140078478A - Lamp unit for automobile - Google Patents

Lamp unit for automobile Download PDF

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Publication number
KR20140078478A
KR20140078478A KR1020120147865A KR20120147865A KR20140078478A KR 20140078478 A KR20140078478 A KR 20140078478A KR 1020120147865 A KR1020120147865 A KR 1020120147865A KR 20120147865 A KR20120147865 A KR 20120147865A KR 20140078478 A KR20140078478 A KR 20140078478A
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KR
South Korea
Prior art keywords
light
guide member
light source
light guide
source module
Prior art date
Application number
KR1020120147865A
Other languages
Korean (ko)
Other versions
KR102014076B1 (en
Inventor
안경수
이정오
Original Assignee
엘지이노텍 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 엘지이노텍 주식회사 filed Critical 엘지이노텍 주식회사
Priority to KR1020120147865A priority Critical patent/KR102014076B1/en
Priority to PCT/KR2013/011707 priority patent/WO2014098436A1/en
Priority to US14/653,089 priority patent/US10180229B2/en
Priority to CN201380072847.4A priority patent/CN104995452B/en
Publication of KR20140078478A publication Critical patent/KR20140078478A/en
Application granted granted Critical
Publication of KR102014076B1 publication Critical patent/KR102014076B1/en

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    • 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
    • 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
    • F21S43/241—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
    • G02B6/005—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
    • G02B6/0033—Means for improving the coupling-out of light from the light guide
    • G02B6/0056—Means for improving the coupling-out of light from the light guide for producing polarisation effects, e.g. by a surface with polarizing properties or by an additional polarizing elements
    • 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
    • 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
    • F21Y2105/00—Planar light sources
    • F21Y2105/10—Planar light sources comprising a two-dimensional array of point-like light-generating elements
    • 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]

Abstract

The present invention relates to a vehicle lighting apparatus capable of diversifying the light color design of illumination, and more particularly, to a light source module including a light guiding member of a double layered structure, so that light emitted from two light sources Thereby providing a lighting device capable of producing a light color and widening the degree of freedom of design.

Description

Lamp unit for automobile}

BACKGROUND OF THE INVENTION Field of the Invention [0001] The present invention relates to a vehicle lighting apparatus capable of diversifying the light color design of illumination.

The lighting unit using various light sources used in electronic devices is implemented in such a way as to increase the light efficiency by using a suitable light source according to the characteristics of each electronic device.

BACKGROUND OF THE INVENTION [0002] Lighting units used in such electronic apparatuses are classified into backlight units applied to flat panel displays, interior lights used in indoor environments, headlights, fog lights, retracted lights, car lights, number lights, tail lights, An indicator lamp, an emergency flashing indicator, or an indoor lighting installed in a vehicle.

However, most of such illumination is mostly applied in terms of the luminance of the surface light source by applying a member such as a light guide plate for efficiently transmitting light that provides light.

For example, Fig. 1 schematically shows a structure of a lighting apparatus used in a conventional vehicle.

1, a conventional light guide for a vehicle includes a light source 10 having a light emission angle of a certain range and emitting light, and a light emitting part 20 for totally reflecting light emitted from the light source 10 The total reflection part 20 is generally configured to have two parallel first and second total reflection surfaces 21 and 22 in the form of a case having an internal space. 1, a dispersion point 30 is formed so as to disperse light, and light passing through the total reflection section 20 is dispersed through the dispersion point 30, And is configured to emit light. That is to say, the light incident from the light source 10 to the total reflection part 20 is reflected along the first and second total reflection surfaces 21 and 22 of the total reflection part 20, Dispersed through the dispersion point 30, and emitted toward the direction perpendicular to the traveling direction. However, since the shape of the conventional vehicle light guide mounted on the rear lamp of the vehicle body is at a general level, there has been a problem that the width of the design of the vehicle by the buyer is limited in a state where the aesthetics is deteriorated.

In order to overcome this limitation, as shown in Fig. 1 (b), a bezel 1 having a housing shape in a rear lamp of a vehicle, a light source 2 inserted into the bezel 1 to emit light, (3) for guiding light emitted from the light guide panel (2), and a light guide panel (3) for inserting the print pattern (3-1) on one side thereof, However, since the light extraction efficiency is lowered by using the printing pattern, there is a problem in reliability of the printing ink, and the light source is inserted only on one side of the printing ink, which causes a limitation in meeting the luminous intensity and the light distribution.

Particularly, in order to realize light having a colored hue such as a tail lamp, a stop lamp, and a ture signal lamp of a vehicle through light emitted forward from the light guide panel 3 An external lens 40 such as the structure of FIG. 2, which is disposed in a state in which the bezel 1 and the inner lens 1-1 are spaced apart from each other by a predetermined distance, must be arranged in the structure of FIG. Such a structure is provided with an external lens having a color arranged in a state of having a constant spacing space for the efficiency of the surface light source, thereby increasing the size and thickness of the entire vehicle light, .

Korean Patent Registration No. 10-1181012

It is an object of the present invention to provide a light source module including a light guide member having a double layered structure, and to provide a light source module in which light emitted from two light sources interferes with each other, And to provide a vehicle side lighting capable of widening the degree of freedom of design.

As a means for solving the above-mentioned problems, the present invention provides a light source module comprising a first light source module including a first light guide member for guiding light emitted from a first light source, and a second light source module disposed on the first light guide member, And a second light guide member for guiding and guiding the light emitted from the first light guide member and the light guided by the first light guide member.

According to the present invention, it is possible to form a light source module including a light guide member having a double layered structure, to produce various light colors through interference between lights emitted from the two light sources, and to increase the freedom of design have.

FIG. 1 is a conceptual diagram showing the structure of a conventional vehicle lighting apparatus.

Hereinafter, the configuration and operation according to the present invention will be described in detail with reference to the accompanying drawings. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In the following description with reference to the accompanying drawings, the same reference numerals denote the same elements regardless of the reference numerals, and redundant description thereof will be omitted. The terms first, second, etc. 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 provides a vehicle lighting apparatus capable of realizing various colors of light through a laminated structure of a light source module in which light is supplied to at least two light guide members.

2 is a conceptual diagram showing a main part of a vehicle side illumination according to the present invention.

2, the vehicle side illumination according to the present invention includes a first light source module 100 including a first light guide member 130 for guiding light emitted from the first light source 120, A second light guide member 230 disposed on one light guide member 130 and guiding and emitting the light emitted from the second light source 220 and the light guided by the first light guide member 130, And a second light source module 200 including the first light source module 200 and the second light source module 200.

That is, two or more light source modules may be arranged in a stacked state, and the light emitted from the light source module disposed at the lower side may be guided by the light source module disposed on the upper side to change the light color.

3, the first light source module 100 may be disposed on one side or both sides of the first light guide member 130 and may include a light source 110 mounted on the printed circuit board 110 . The first light guide member 130 is provided on the side of the printed circuit board 110 to diffuse the light from the light source 130 to the upper second light guide member 230. The light guide member 130 may be a resin layer replacing the conventional light guide plate as well as the light guide plate.

The printed circuit board 110 is a PCB having a circuit pattern formed thereon, that is, a PCB. In the present invention, the printed circuit board 110 is preferably a transparent printed circuit board. In the case of the conventional lighting device, it is opaque by using the FR4 printed circuit board. However, by using the transparent material, in particular the transparent PET printed circuit board, as in the present invention, it becomes possible to provide a transparent lighting device. In addition, in the present invention, a flexible printed circuit board (FPCB) can be used to secure certain flexibility. The light source 120 may be a side emitting type or a top emitting type LED.

The light emitted and guided into the first light guide member 130 is diffused and reflected by the first light guide member to induce light upward. For this, a reflection pattern 131 is formed on one surface of the first light guide member 130, and it can be embodied as a relief pattern which is directly recessed and recessed into the interior. A reflective member 140 is disposed under the first light guide member 130 to prevent the light emitted from the first light source 130 from leaking to the outside and to reflect the light upward through the reflection. As shown in Fig. The reflective member 140 may be a sheet made of any one of transparent PET, white polyethylene terephthalate (hereinafter abbreviated as white PET) and Ag sheet. Further, the surface of the reflective member 140 may be formed of TiO 2 , CaCO 3 , BaSO 4 , Al 2 O 3 , Silicon, and PS. The reflectance of the reflective pattern may be increased. In addition, the reflective member may be formed in a film form in addition to the above-described materials, and may include a synthetic resin dispersedly containing a white pigment in order to realize light reflection characteristics and light scattering characteristics. Examples of the white pigment include titanium oxide, aluminum oxide, zinc oxide, lead carbonate, barium sulfate, calcium carbonate and the like. As the synthetic resin, polyethyleneterephthalate, polyethylene naphthalate, acrylic resin, colicarbonate, polystyrene, polyolefin , Cellulosic acid acetate, weather-resistant vinyl chloride, and the like can be used, but the present invention is not limited thereto. Further, the structure of the reflection pattern is formed of a plurality of protruding patterns. In order to increase the scattering effect of light, a dot pattern shape, a prism shape, a lenticular shape, a lens shape, But is not limited thereto. In addition, the cross-sectional shape of the reflection pattern may be a structure having various shapes such as a triangle, a quadrangle, a semicircle, and a sine wave.

The light emitted from the first light source 120 is diffused and reflected in the first light guide member 130 to emit light to the second light guide member 230 in the upper layer. In this case, the light transmitted through the first light guide member 130 without being separated from the first light guide member 130 and the second light guide member 230 is directly transmitted to the second light guide member 230 It is possible to realize a change in the color of light due to interference and mixing action of light on the second light guide member 130. Of course, the second light source 220 for supplying light to the second light guide member 230 may also be disposed on one side or both sides of the second light guide member 230, The light from the second light source 220 can be diffused or reflected in the second light guide member 230 and guided forward. In this case, it is needless to say that the second light guide member 230 may also have a reflection pattern 231 of a negative angle structure. In this case, in the case of light leaking to the lower surface of the second light guide member 230, the light may be reflected or diffused again in the first light guide member 130 so as to rise upward.

2, a part of light passing through the first light guide member is transmitted to the second light guide member between the first light guide member 130 and the second light guide member 230, And a transflective reflecting member 240 for reflecting a part of the light emitted from the light source. 3, when there is no separate member between the first light source module 100 and the second light source module 200, the light is transmitted or reflected between the upper and lower light guide members freely The semi-transmissive reflection member 240 may be disposed to partially transmit the light emitted from the first light guide member 130 to guide the light to the second light guide member 230, So that the light in the light guide member 230 can be reflected and transmitted to the upper part. In this case, the first light source 120 and the second light source 130 may use LEDs of different colors. In addition, the materials of the light guide members may be the same or different.

The semi-transmissive reflector 240 is implemented in a structure in which a light transmitting pattern is implemented on a basic reflective sheet such as light PET, white PET, Ag sheet, and the like so that the light transmittance T is 0% <T < 100%. &Lt; / RTI &gt;

The light transmission pattern is a pattern formed by only forming a semi-transmissive material layer so as to control the transmissivity by forming a large number of fine holes, fine slits, and penetrating patterns for transmitting light on the reflective member, or to achieve a desired transmittance in the light transmission region. The transmittance can be adjusted. It is preferable that such a semi-transparent material layer is basically formed with a transmittance of 1 to 99%. In addition, the material for realizing this can be a material mainly composed of only the main element (a material mainly composed of Mo, Si, Ta, W, Al, Cr, Hf, Zr, Me, V, Ni, Nb, Co, ) Or a composite material in which at least two of the main elements are mixed, or a material in which at least one of COx, Ox, and Nx is added to the main element or the composite material. The subscripts are natural numbers that vary depending on the main element to be combined. MoxSiyOz, MoxSiyOzN, MoxSiyOz, MoxSiyOzN MoxSiyCOzN, MoxSiyCOz, TaxOy, TaxOyNz, TaxCOy, TaxOyNz, AlxOy, AlxCOy, AlxOyNz, AlxCOyNz, AlxOyNz, AlxOyNz, AlxOyNz, AlxOyNz, AlxOyNz, TixOy, TixOyNz, TixCOy, or a combination thereof may be used. The subscripts x, y, and z are natural numbers, which means the number of each chemical element.

The transflective member can be applied to a case where a specific light transmittance is required for a certain luminous intensity and a certain luminous intensity, unlike the closely arranged arrangement structure of the light guide members of FIG. 3, and a function And the desired brightness can be adjusted.

4 shows another embodiment according to the present invention.

4 and FIG. 2 is that the first light source module 100 has the same structure in the laminated structure of the light guide members disposed up and down, but the second light source 220 Are arranged in the second light guide member 230 in a structure that is accommodated in the second light guide member 230. In this case, a transparent PCB may be applied to the printed circuit board 110 so that there is no loss in light transmittance. Further, in this case, the above-described semi-transmissive It is also possible to dispose a reflective member (not shown) below the transparent PCB. In this case, the second light source 220 may be an upper light emitting LED. Of course, in this case, it is also possible to realize mixing of the first light source and the lower color light by employing a plurality of the side-emission type LEDs.

FIG. 5 shows an embodiment different from the structure of FIG.

5, the second light source module 200 is formed in the same manner as the structure of FIG. 2, and the first light source 120 in the first light source module 100 is divided into the first light guide member 120, (Not shown). In this case, if the printed circuit board 110 is disposed under the first light guide member 130 to improve the reflection efficiency, it can be realized as a white printed circuit board having high reflectance.

 Of course, although not shown in the structure of FIG. 5, it is also possible to arrange the transflective member in FIG. 2 between the first light guide member 130 and the second light guide member 230. The first light source 120 may be an upper light emitting LED. Of course, in this case, it is also possible to realize mixing of the upper second light source and the light color by employing a plurality of side-emitting LEDs.

2 to 5, the diffusion member 300 may be disposed on an upper portion of the light guiding member, and diffusion of light through the diffusion member 300 may be realized Do.

2 to 5, the structure in which two light source modules are stacked is described as a preferred embodiment. However, the present invention is not limited thereto, and it is also possible to stack two or more light source modules. In this case, the light source of each light source module may be colored in various colors by applying LEDs of different colors, and the transmissivity may be adjusted by inserting the transflective member described in FIG. 2 between the light guide members.

The light guide member according to the present invention described above with reference to FIGS. 2 to 5 may be formed of a resin material, and the resin material may be formed of a high heat-resistant ultraviolet curable resin including an oligomer. In this case, the content of the oligomer may be 40 to 50 parts by weight. Urethane acrylate may be used as the ultraviolet ray hardening resin. However, the ultraviolet ray hardening resin may be epoxy acrylate, polyester acrylate, polyether acrylate, At least one of polybutadiene acrylate and silicone acrylate may be used.

Particularly, when urethane acrylate is used as an oligomer, two different types of urethane acrylate are mixed and used to realize different properties at the same time.

For example, isocyanate is used in the synthesis of Urethane Acrylate, and the physical properties (sulfur denaturation, weather resistance, chemical resistance, etc.) of Urethane Acrylate are determined by Isocyanate. At this time, one kind of Urethane Acrylate is implemented as Urethane Acrylate type-Isocyanate, and the NCO% of PDI (isophorone diisocyanate) or IPDI (isophorone diisocyanate) is 37% ) And another type of Urethane Acrylate as Urethane Acrylate type-Isocyanate, and the NCO% of PDI (isophorone diisocyanate) or IPDI (isophorone diisocyanate) is 30 ~ 50% or 25 ~ 35% (Hereinafter referred to as a 'second oligomer') according to an embodiment of the present invention. According to this, the first oligomer and the second oligomer having different physical properties can be obtained by controlling the NCO%, and oligomers constituting the resin material can be realized by mixing them. In this case, the first oligomer weight ratio in the oligomer may be in the range of 15 to 20, and the second oligomer weight ratio may be in the range of 25 to 35.

Alternatively, the resin material may further comprise at least one of a monomer and a photo initiator. More specifically, 35 to 45 parts by weight of isobornyl acrylate (IBOA), 10 to 15 parts by weight of 2-HEMA (2-hydroxyethyl methacrylate), 2 to 2 parts by weight of 2-hydroxybutyl Acrylate) in an amount of 15 to 20 parts by weight. In the case of a photoinitiator (for example, 1-hydroxycyclohexyl phenyl-ketone, diphenyl), or diphenyl (2,4,6-trimethylbenzoyl phosphine oxide), 0.5 to 1 part by weight may be used.

The resin material may also be made of a thermosetting resin having high heat resistance. Specifically, the resin material may be composed of a thermosetting resin including at least one of a polyester polyol resin, an acrylic polyol resin, and a hydrocarbon-based or / and ester-based solvent. Such a thermosetting resin may further include a thermosetting agent for improving the film strength.

In the case of a polyester polyol resin, the content of the polyester polyol resin may be 9 to 30% based on the total weight of the thermosetting resin. Also, in the case of an acrylic polyol resin, the content of the acrylic polyol may be 20 to 40% based on the total weight of the thermosetting resin.

In the case of a hydrocarbon-based or ester-based solvent, the content thereof may be 30 to 70% based on the total weight of the thermosetting resin. In the case of the thermosetting agent, the content of the thermosetting resin may be 1 to 10% based on the total weight. In the case of forming the resin material with the above-described materials, the decrease in luminance due to heat can be minimized even in a lighting apparatus in which heat resistance is enhanced and high-temperature heat is emitted, and a highly reliable lighting apparatus can be provided.

In addition, according to the present invention, the thickness of the resin material can be reduced by using the above-described materials for the vehicle side illumination, thereby realizing the thinness of the entire product. In particular, due to the flexibility of the resin material described above, it can be easily applied to curved surfaces, thereby improving the degree of freedom of design, and can be applied and applied to vehicle lighting and flexible displays having various designs and bends .

In particular, the resin material may include a diffusion material in which a hollow (or a cavity) is formed, and the diffusion material may be mixed with or diffused with a resin forming the resin material, and may improve the reflection and diffusion characteristics of light . For example, light emitted from the light source to the inside is reflected and transmitted by the hollow of the diffusion material, so that light is diffused and condensed in the resin material, and the diffused and condensed light is incident on one surface (e.g., . &Lt; / RTI &gt; At this time, the reflectance and diffusivity of light are increased by the diffusion material, so that the amount and uniformity of the outgoing light supplied to the upper surface of the resin material is improved, and as a result, the brightness of the light source module can be improved.

The content of the diffusing material can be appropriately adjusted to obtain the desired light diffusion effect. Specifically, it may be adjusted in the range of 0.01 to 0.3% based on the weight of the entire resin material, but is not limited thereto. The diffusion material 41 is formed of any one selected from the group consisting of sillicon, silica, glass bubble, PMMA, urethane, Zn, Zr, Al 2 O 3 , And the particle diameter of the diffusion material may be 1 탆 to 20 탆, but is not limited thereto.

The illumination device according to the present invention is applicable to various lamp devices requiring illumination, such as a vehicle lamp, a domestic illumination device, and an industrial illumination device. For example, when applied to a vehicle lamp, it can be applied to a headlight, a vehicle interior light, a door scarf, a rear light, a stop lamp, a turn signal lamp, a tail lamp, and the like. In addition, the illumination device of the present invention can be applied to a backlight unit field applied to a liquid crystal display device, and can be applied to all lighting-related fields that are currently developed, commercialized, or can be implemented according to future technology development.

In the foregoing detailed description of the present invention, specific examples have been described. However, various modifications are possible within the scope of the present invention. The technical idea of the present invention should not be limited to the embodiments of the present invention but should be determined by the equivalents of the claims and the claims.

100, 200: first light source module
110, 210: printed circuit board
120, 220: Light source (LED)
130, 230: light guide member
140: reflective member

Claims (17)

A first light source module including a first light guide member for guiding light emitted from the first light source;
A second light source module disposed on the first light guide member and including a second light guide member guiding and outputting light emitted from the second light source and light guided by the first light guide member;
The vehicle side lighting comprising the vehicle.
The method according to claim 1,
A second light guide member disposed between the first light guide member and the second light guide member,
And a transflective reflecting member that transmits a part of the light that has passed through the first light guiding member to the second light guiding member and reflects a part of the light emitted from the second light guiding member.
The method of claim 2,
Wherein the transflective type reflecting member comprises:
A vehicle side lighting having a structure in which a light transmission pattern is formed on a reflection sheet.
The method of claim 3,
Wherein the light transmission pattern is formed by:
A vehicular surface illumination embodied as a light-transmitting fine hole having a structure penetrating through a reflective sheet.
The method of claim 4,
Wherein the light transmission pattern is formed by:
A vehicle side illumination that is a pattern embodied as a semi-transparent material layer formed in one area of the reflective sheet.
The method of claim 5,
The semi-
(A material consisting only of the main element) or the main elements of the main elements, with Mo, Si, Ta, W, Al, Cr, Hf, Zr, Me, V, Ni, Nb, At least two or more of which are mixed materials, or formed of a material to which at least one of CO x , O x , and N x is added to the main element or the composite material.
The method of claim 3,
The reflective sheet may include:
Transparent PET, white PET (white polyethylen terephthalate), and Ag sheet.
The method according to claim 1,
The first light source module includes:
And a reflective member disposed on a bottom surface of the first light guide member.
The method of claim 8,
Wherein the reflective member comprises:
Wherein a reflection pattern formed using any one of TiO 2 , CaCO 3 , BaSO 4 , Al 2 O 3 , Silicon, and PS is implemented.
The method according to any one of claims 1 to 8,
Wherein the first light source and the second light source include:
Wherein the first light guide member and the second light guide member are disposed on side surfaces of the first light guide member and the second light guide member.
The method of claim 9,
And a reflection pattern of a negative angle structure is formed on the lower surfaces of the first light guide member and the second light guide member.
The method of claim 9,
Wherein the first light source and the second light source include:
A vehicle side illumination that is a light emitting diode (LED) that emits light of a different color.
The method according to any one of claims 1 to 8,
Wherein one of the first light source and the second light source comprises:
A vehicle side lighting arranged in a structure to be inserted into a light guide member.
14. The method of claim 13,
The first light source module includes:
Wherein the first light source is arranged to be inserted on the first light guide member,
Wherein the first light source is mounted on a white printed circuit board (PCB).
14. The method of claim 13,
The second light source module includes:
And the second light source is inserted into the second light guide member,
And the second light source is mounted on a transparent printed circuit board.
The method according to any one of claims 1 to 8,
And a diffusion member disposed above the second light guide member.
The method according to any one of claims 1 to 8,
And a light source module for emitting light to the light guide member on the second light source module.
KR1020120147865A 2012-12-17 2012-12-17 Lamp unit for automobile KR102014076B1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
KR1020120147865A KR102014076B1 (en) 2012-12-17 2012-12-17 Lamp unit for automobile
PCT/KR2013/011707 WO2014098436A1 (en) 2012-12-17 2013-12-17 Lighting unit for vehicle
US14/653,089 US10180229B2 (en) 2012-12-17 2013-12-17 Lighting unit for vehicle
CN201380072847.4A CN104995452B (en) 2012-12-17 2013-12-17 lighting unit for vehicle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020120147865A KR102014076B1 (en) 2012-12-17 2012-12-17 Lamp unit for automobile

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KR102014076B1 KR102014076B1 (en) 2019-08-27

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WO2020045697A1 (en) * 2018-08-28 2020-03-05 제트카베 그룹 게엠베하 Vehicle lamp using semiconductor light-emitting device
WO2020045696A1 (en) * 2018-08-28 2020-03-05 제트카베 그룹 게엠베하 Vehicular lamp using semiconductor light emitting element
WO2020045698A1 (en) * 2018-08-28 2020-03-05 제트카베 그룹 게엠베하 Vehicle lamp using semiconductor light-emitting device

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