KR20140078373A - Light unit and Lamp unit for automobile of using the same - Google Patents
Light unit and Lamp unit for automobile of using the same Download PDFInfo
- Publication number
- KR20140078373A KR20140078373A KR1020120147659A KR20120147659A KR20140078373A KR 20140078373 A KR20140078373 A KR 20140078373A KR 1020120147659 A KR1020120147659 A KR 1020120147659A KR 20120147659 A KR20120147659 A KR 20120147659A KR 20140078373 A KR20140078373 A KR 20140078373A
- Authority
- KR
- South Korea
- Prior art keywords
- light
- light source
- light guide
- guide member
- shielding
- Prior art date
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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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
- F21S41/10—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
- F21S41/14—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source characterised by the type of light source
- F21S41/141—Light emitting diodes [LED]
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- 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
-
- 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
- F21S41/30—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by reflectors
- F21S41/37—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by reflectors characterised by their material, surface treatment or coatings
-
- 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
- F21W2107/00—Use or application of lighting devices on or in particular types of vehicles
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Optics & Photonics (AREA)
- Planar Illumination Modules (AREA)
Abstract
Description
The present invention relates to a lighting device and a vehicle lamp including the same.
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
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
In such conventional vehicular illumination and indoor illumination, there are many limitations in the structural aspect of increasing the light efficiency.
SUMMARY OF THE INVENTION It is an object of the present invention to provide a light shielding module having a bracket structure for shielding a light source module housed therein, And the light emitted from the light source can be reflected by the shielding region and concentrated on the diffusion member, thereby increasing the brightness and brightness of the light emitting portion.
As a means for solving the above-mentioned problems, the present invention provides a light source module including a light source module including at least one light source and a light guide member formed to embed the light source, And a light diffusing member disposed on the light guide member.
A light shielding module having a bracket structure for supporting a light source module housed therein is formed in a structure for shielding one region of the upper part of the light source module, and light emitted from the light source is reflected on the shielding region and can be concentrated on the diffusion member So that the brightness and brightness of the light emitting portion are increased.
In particular, the upper end of the shielding module has a bended bent portion, and the brightness can be adjusted according to the bent angle of the bent portion.
Furthermore, it is possible to secure the diversity of the mechanism design and improve the light efficiency through the non-air gap structure in which the spacing between the light guide module and the diffusion member is removed.
FIG. 1 is a conceptual diagram showing the structure of a conventional vehicle lighting apparatus.
FIG. 2 is a schematic cross-sectional view showing a main part of a lighting apparatus according to the present invention. FIG.
3 to 7 are sectional schematic views showing another embodiment of the lighting apparatus according to the present invention described above with reference to FIG.
8 is a table showing the results of a comparative experiment.
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.
FIG. 2 is a schematic cross-sectional view showing a main part of a lighting apparatus according to the present invention. FIG.
2, the illumination apparatus according to the present invention includes a
In particular, the illuminating device according to the present invention uses the
For this, the
In particular, the
That is, the
The
In addition, since the light source and the
In particular, the illumination device according to the present invention may further include a
The
The
The
The
The
The
When the
The resin layer of the present invention can be basically made of a resin capable of diffusing light. For example, the resin layer of the present invention may be composed of a self-hardening resin including an oligomer, and more specifically, the resin layer may be formed using a resin containing urethane acrylate oligomer as a main material. For example, a resin obtained by mixing a synthetic oligomer, a urethane acrylate oligomer and a polyacrylic polymer type, may be used. Of course, it may further comprise a monomer mixed with a low-boiling-point diluent type reactive monomer such as isobornyl acrylate (IBOA), hydroxypropyl acrylate (HPA), or 2-hydroxyethyl acrylate (HPA). A photoinitiator -hydroxycyclohexyl phenyl-ketone, etc.) or an antioxidant, etc. However, the above description is merely one example, and it is also possible to perform a light diffusing function which is currently developed, commercialized, The resin layer of the present invention can be formed with all of the resins having the above properties.
Meanwhile, the resin layer of the present invention may further include a plurality of beads in which a hollow (or a cavity) is formed in a mixed and diffused form, and the beads improve the reflection and diffusion characteristics of light. For example, when the light emitted from the
The content of the bead may be appropriately adjusted to obtain a desired light diffusion effect, and more specifically, it may be adjusted within the range of 0.01 to 0.3% based on the weight of the entire resin layer, but is not limited thereto. That is, the light emitted laterally from the
According to the present invention, the thickness of the conventional light guide plate can be innovatively reduced due to the presence of the resin layer, so that the thinness of the entire product can be realized, and the flexible material can be easily applied to the curved surface The advantage of being able to improve the degree of freedom of design, and the advantage of being applicable to other flexible displays.
3 to 7 are sectional schematic views showing another embodiment of the lighting apparatus according to the present invention described above with reference to FIG.
The difference between the structure of FIG. 2 and the structure of FIG. 3 is that the
In this case, the
Alternatively, it may be disposed between the pair of
FIG. 5 is a view illustrating a modification of the structure of FIG. 4 in which the
The
The
That is, it is also possible to form a diffusion pattern on the surface of the polymer film by white printing, form a light shielding pattern thereon, or form a double structure in the reverse order. Of course, it will be obvious that the formation design of such a pattern can be variously modified in consideration of light efficiency, intensity, and shading ratio. Alternatively, it is also possible to form a light-shielding pattern, which is a metal pattern, in the middle layer in a sequential laminated structure, and to form a triplet in which a diffusion pattern is formed on the upper and lower portions, respectively. In such a triple structure, it is possible to select and implement the above-mentioned materials. As a preferable example, one of the diffusion patterns is realized by using TiO 2 having excellent refractive index, and CaCO 3 excellent in light stability and color is used together with TiO 2 The light diffusing pattern can be realized and the light efficiency and homogeneity can be ensured through the triple structure which realizes a light shielding pattern by using Al which is excellent in concealment. Particularly, CaCO 3 functions to reduce the exposure of yellow light and finally realize white light. Thus, it is possible to realize light with more stable efficiency. In addition to CaCO 3 , particles such as BaSO 4 , Al 2 O 3 , It is also possible to utilize inorganic materials having a large size and a similar structure. In addition, it is preferable that the
FIG. 7 is a sectional view showing the structure of the illumination device having the non-air gap structure of the shielding module and the diffusion member of FIG. 4 according to the present invention. And a brightness comparison with the lighting apparatus according to the present invention was performed. The results are shown in Fig.
In Comparative Example 1, the luminance was measured with the structure of Fig. 7 (structure with no shielding module + structure with air gap), Comparative Example 2 had structure without shielding module + air gap structure In the example, the luminance of the illuminating device according to Fig. 4 is measured.
As a result of comparison, it can be confirmed that the luminance of the illumination device according to the present invention is increased by about 10% as compared with the comparative example by removing the shielding module and the diffusion member.
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 it is applied to a vehicle lamp, it can be applied to a headlight, a vehicle interior light, a door scarf, a rear light, 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: Light source module
110: printed circuit board
120: reflective member
130: Light source
140: light guide member
150: diffusion member
160: Optical pattern
161, 162: Optical sheet
200: Shielding module
210:
220: shielded body
A: opening area
B: Shielded area
Claims (20)
A shielding module accommodating the light source module therein and forming an opening area and a shielding area on the light guide member; And
A diffusion member disposed on the light guide member;
≪ / RTI >
The shielding module comprises:
A shielding body surrounding the lower and side surfaces of the light source module and having an upper portion opened;
A bent portion formed at an upper end of the shield body to form the shielded region by being bent toward the center of the light source module;
≪ / RTI >
The bending portion
Wherein the light source is formed on an upper portion of an area where the light source is disposed.
The bending portion
Wherein the light source has a length longer than a boundary of the light exit surface of the light source.
The shielding module comprises:
Al, PC, PP, ABS, and PBT.
Wherein the diffusion member
Wherein the light guide member is disposed in a non-air-gap structure.
Wherein the diffusion member
And is arranged to cover the opening area.
Wherein the diffusion member
And the distal end of the diffusion member is in close contact with both ends of the bent portion forming the opening region.
The light source module includes:
And a plurality of optical patterns disposed between the diffusion member and the light guide member.
In the optical pattern,
Wherein the diffusion member is formed at a lower portion thereof.
In the optical pattern,
Wherein the light guide member is formed on a surface of a first optical sheet layer disposed on an upper surface of the light guide member.
In the optical pattern,
And the first optical sheet layer and the second optical sheet layer disposed on the upper surface of the light guide member.
In the optical pattern,
A diffusion pattern formed using a light shielding ink containing at least one material selected from TiO 2 , CaCO 3 , BaSO 4 , and Silicon,
Wherein the light-shielding pattern formed using Al or a light-shielding ink containing a mixture of Al and TiO 2 has an overlapping structure.
The light source module includes:
A printed circuit board for mounting the light source,
And a reflective member disposed between the printed circuit board and the light guide member.
Wherein the reflective member comprises:
And a reflective pattern formed of any one of TiO 2 , CaCO 3 , BaSO 4 , Al 2 O 3 , Silicon, and PS formed on the surface of the reflective member.
Wherein the reflective member comprises:
Transparent PET, white PET, and Ag sheet.
The light guide member
A light guide plate or a resin layer.
The light guide member
Wherein the resin layer closely adhered to the light source further comprises a bead made of any one of silicon, silica, and PMMA.
Wherein the printed circuit board includes:
A lighting device which is a transparent PET printed circuit board.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020120147659A KR102047833B1 (en) | 2012-12-17 | 2012-12-17 | Light unit and Lamp unit for automobile of using the same |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020120147659A KR102047833B1 (en) | 2012-12-17 | 2012-12-17 | Light unit and Lamp unit for automobile of using the same |
Publications (2)
Publication Number | Publication Date |
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KR20140078373A true KR20140078373A (en) | 2014-06-25 |
KR102047833B1 KR102047833B1 (en) | 2019-11-22 |
Family
ID=51130002
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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KR1020120147659A KR102047833B1 (en) | 2012-12-17 | 2012-12-17 | Light unit and Lamp unit for automobile of using the same |
Country Status (1)
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KR (1) | KR102047833B1 (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2016064174A1 (en) * | 2014-10-22 | 2016-04-28 | 엘지이노텍 주식회사 | Lighting apparatus and vehicular lamp comprising same |
KR20160062781A (en) * | 2014-11-25 | 2016-06-03 | 현대자동차주식회사 | Light source module of lamp for vehicle |
WO2017095170A1 (en) * | 2015-12-02 | 2017-06-08 | 엘지이노텍 주식회사 | Lighting device and vehicular lamp comprising same |
KR20180025732A (en) * | 2016-09-01 | 2018-03-09 | 엘지이노텍 주식회사 | Light device and vehicle lamp including the same |
KR20190138987A (en) * | 2018-06-07 | 2019-12-17 | 엘지이노텍 주식회사 | Lighting module and lighting apparatus |
KR20220159325A (en) * | 2017-09-25 | 2022-12-02 | 엘지이노텍 주식회사 | Lighting module and lighting apparatus having thereof |
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JP2006040764A (en) * | 2004-07-28 | 2006-02-09 | Mitsubishi Electric Corp | Surface light source and liquid crystal display |
JP2008059786A (en) * | 2006-08-29 | 2008-03-13 | Seiko Instruments Inc | Lighting apparatus and display device provided with the same |
JP2010123400A (en) * | 2008-11-19 | 2010-06-03 | Panasonic Electric Works Co Ltd | Floor-use plane-luminescence lighting fixture |
KR100973415B1 (en) * | 2009-01-22 | 2010-07-30 | 화우테크놀러지 주식회사 | Noncombustible flat type led lighting appratus |
KR101181012B1 (en) | 2010-07-30 | 2012-09-07 | 기아자동차주식회사 | Light guide for rear lamp |
KR20120116806A (en) * | 2011-04-13 | 2012-10-23 | 엘지이노텍 주식회사 | Solar cell |
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2012
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JP2006040764A (en) * | 2004-07-28 | 2006-02-09 | Mitsubishi Electric Corp | Surface light source and liquid crystal display |
JP2008059786A (en) * | 2006-08-29 | 2008-03-13 | Seiko Instruments Inc | Lighting apparatus and display device provided with the same |
JP2010123400A (en) * | 2008-11-19 | 2010-06-03 | Panasonic Electric Works Co Ltd | Floor-use plane-luminescence lighting fixture |
KR100973415B1 (en) * | 2009-01-22 | 2010-07-30 | 화우테크놀러지 주식회사 | Noncombustible flat type led lighting appratus |
KR101181012B1 (en) | 2010-07-30 | 2012-09-07 | 기아자동차주식회사 | Light guide for rear lamp |
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Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2016064174A1 (en) * | 2014-10-22 | 2016-04-28 | 엘지이노텍 주식회사 | Lighting apparatus and vehicular lamp comprising same |
KR20160047250A (en) * | 2014-10-22 | 2016-05-02 | 엘지이노텍 주식회사 | Light unit and Lamp unit for automobile of using the same |
EP3211298A4 (en) * | 2014-10-22 | 2017-11-29 | LG Innotek Co., Ltd. | Lighting apparatus and vehicular lamp comprising same |
US10300836B2 (en) | 2014-10-22 | 2019-05-28 | Lg Innotek Co., Ltd. | Lighting apparatus and vehicular lamp comprising the same |
KR20160062781A (en) * | 2014-11-25 | 2016-06-03 | 현대자동차주식회사 | Light source module of lamp for vehicle |
EP3026328A3 (en) * | 2014-11-25 | 2016-10-05 | Hyundai Motor Company | Light source module of lamp for vehicle |
WO2017095170A1 (en) * | 2015-12-02 | 2017-06-08 | 엘지이노텍 주식회사 | Lighting device and vehicular lamp comprising same |
US11079074B2 (en) | 2015-12-02 | 2021-08-03 | Lg Innotek Co., Ltd. | Lighting device and vehicular lamp comprising same |
KR20180025732A (en) * | 2016-09-01 | 2018-03-09 | 엘지이노텍 주식회사 | Light device and vehicle lamp including the same |
KR20220159325A (en) * | 2017-09-25 | 2022-12-02 | 엘지이노텍 주식회사 | Lighting module and lighting apparatus having thereof |
KR20190138987A (en) * | 2018-06-07 | 2019-12-17 | 엘지이노텍 주식회사 | Lighting module and lighting apparatus |
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