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
  • F21S2/00—Systems of lighting devices, not provided for in main groups F21S4/00 - F21S10/00 or F21S19/00, e.g. of modular construction
• • 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
  • F21V7/00—Reflectors for light sources
  • F21V7/04—Optical design
  • F21V7/048—Optical design with facets structure
• • 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
  • F21K9/20—Light sources comprising attachment means
  • F21K9/23—Retrofit light sources for lighting devices with a single fitting for each light source, e.g. for substitution of incandescent lamps with bayonet or threaded fittings
  • F21K9/232—Retrofit light sources for lighting devices with a single fitting for each light source, e.g. for substitution of incandescent lamps with bayonet or threaded fittings specially adapted for generating an essentially omnidirectional light distribution, e.g. with a glass bulb
• • 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
  • F21V3/00—Globes; Bowls; Cover glasses
• • 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
  • F21Y2107/00—Light sources with three-dimensionally disposed 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
  • F21Y2107/00—Light sources with three-dimensionally disposed light-generating elements
  • F21Y2107/60—Light sources with three-dimensionally disposed light-generating elements on stacked substrates
• • 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]

Definitions

• the present invention is related to a lighting structure for the car to use a light emitting diode (hereinafter referred to as LED.) for a signal lamp, a brake lamp, a headlight, a breadth indication lamp and the like, more specifically the car lighting apparatus, in which when the LEDs emits light, a light emitting range of the LED and an expanding range of a luminance are improved by installing the LEDs and reflectors in both of upward and downward positions so that a car could be distinctly recognized, wherein a stacking or arranging manner of the LEDs is improved so as to fully utilized the LED.
• a light emitting diode hereinafter referred to as LED.
• a LED is an electronic element which produces carriers (electrons) using a p-n bonding structure of a semiconductor and emits light by a rejoining of these carriers.
• This LED has a small size and a long life span compared with a conventional light source, and further has a low power consumption and a high efficiency as it convents electric energy into light energy.
• the LED has a feature of a rapid responsibility so that it is widely applied to an indication lamp or a number indicating device of various electronic apparatus such as a display element of a car instrument and a light source for a telecommunication, and to a guide lamp for a home, a vessel, a traffic signal, or a evacuation as lighting means.
• a conventional LED lamp used as the lighting means has a simple structure, and auxiliary means such as a reflector for reflecting light from the LED always has the same dome shape instead of having a multi angular structure. Therefore, technical and structural developments are required for an improvement of a light emitting efficiency.
• the conventional LED lamp especially lamps applied to the car mostly comprises conventional electric bulbs, and due to a luminance, a delay to reach a maximum light emitting, and a short life span, the electric bulb is limited in being applied to the car.
• the conventional LED lamp simply has the reflector surrounding the light source similar to the convention electric bulb and thus has limitations in the light emitting range and the expanding range of the luminance, as mentioned above, the LED lamp would not be applied to a breadth indication lamp, a brake lamp, a signal lamp and the like which should keep a small size in order to secure an applicability even though the number of the light source are increased.
• the number of the LED should be increased so as to increase the luminance, but in this case, the small size of the lamp could not be maintained.
• the present invention is contemplated to solve aforementioned problems, and has following objects:
• FIG. 1 is a perspective view showing a lighting structure for the car to use a LED according to the present invention
• FIG. 2 is an exploded perspective view showing the lighting structure for the car to use the LED according to the present invention
• FIG. 3 is a perspective view showing one embodiment in the lighting structure for the car to use the LED according to the present invention
• FIG. 4 is a perspective view showing another embodiment in the lighting structure for the car to use the LED according to the present invention
• FIGS. 5-8 are drawings showing still another embodiments in the lighting structure for the car to use the LED according to the present invention
• FIG. 9 is a schematic view showing one example of the LED in the present invention
• FIG. 16 is a schematic view showing the LED lamps which are circumferentially arranged with opening widely in the lighting structure for the car to use the LED according to the present invention
• FIG. 17 is an exploded perspective view showing the LED lamp disposed at a center of a printed circuit board in the lighting structure for the car to use the LED according to the present invention.
• FIG. 1 is a perspective view showing a lighting structure for the car to use a LED according to the present invention
• FIG. 2 is an exploded perspective view showing the lighting structure for the car to use the LED according to the present invention
• FIG. 3 is a perspective view showing one embodiment in the lighting structure for the car to use the LED according to the present invention
• FIG. 4 is a perspective view showing another embodiment in the lighting structure for the car to use the LED according to the present invention
• FIGS. 5-8 are drawings showing still another embodiments in the lighting structure for the car to use the LED according to the present invention
• FIG. 9 is a schematic view showing one example of the LED in the present invention
• FIGS. 10-15 are drawings showing embodiments of a reflector applied to a LED lighting unit according to the present invention, respectively, FIG.
• FIG. 16 is a schematic view showing the LED lamps which are circumferentially arranged with opening w idely in the lighting structure for the car to use the LED according to the present invention
• FIG. 17 is an exploded perspective view showing the LED lamp disposed at a center of a printed circuit board in the lighting structure for the car to use the LED according to the present invention.
• the lighting structure for the car to use the LED comprises a socket 110 for a mounting the lighting apparatus and supplying power, a LED lighting unit 120 being supplied with the power by the socket 110 and including the LEDs 121 which emit the light and are stacked oppositely in upward and downward directions, and a cover 130 for protecting the LED lighting unit 120.
• the socket 110 employs various coupling according to its application such as a thread coupling, a fitting and an insertion.
• the LED lighting unit 120 has a plurality of the LEDs 121, upward and downward printed circuit boards 122 and 122 for allowing the LEDs to be disposed and arranged thereon, reflectors 123 and 123 provided in traveling directions of the light emitted from the LEDs 121 and reflecting or refracting the light emitted from the LEDs by various angles so as to arbitrarily adjust the traveling directions of the light.
• the LED lighting unit 120 is preferably formed to have an opposite stacking or arranging structure, considering an improvement of a light emitting efficiency by emitting in all the directions, and an embodiment thereto will be explained in detail.
• a fixing plate 124 has one surface attached to an upper inner surface of the cover 130 and includes a hollow at a center thereof for allowing the light to be radiated smoothly, and the upward reflector 123 of a polygon is coupled on the other surface of the fixing plate 124 and has a hole for allowing the light to be radiated smoothly.
• outer and inner surfaces adjacent to the hole comprise a transparent body so as to increase a radiation range and a spreading range of the light emitted from the LEDs 121.
• the upward printed circuit board 122 on which the LEDs 121 are circumferentially arranged in the upward direction, is provided below the upward reflector 123, and supply the power to the LEDs 121.
• an insulation body 125 is provided below the upward printed circuit board 122 so as to prevent a short circuit and an electric shock.
• the downward printed circuit board 122 for supporting and supplying the power to the LEDs 121 circumferentially arranged in the downward direction is provided below the insulation body 125, and the polygonal downward reflector 123 having the hole is provided below the downward printed circuit board 122 in order to allow the light to be radiated smoothly.
• the LEDs 121 emit the light in the upward and downward directions, so that the emitting range and luminance is improved compared with the conventional lighting apparatus.
• the insulation body 125 is formed below the upward printed circuit board 122 on which the LEDs 121 are circumferentially arranged in the upward direction, the upward reflector 123 is provided below the insulation body 125, and the upward printed circuit board 122 on which the LEDs 121 are circumferentially arranged in the upward direction is provided below the upward reflector 123.
• the LEDs 121 are arranged in side directions below the upward printed circuit board 122 on which the LEDs 121 are circumferentially arranged in the upward direction, the downward printed circuit board 122 for supporting and supplying the power to the LEDs 121 circumferentially arranged in the downward direction is provided below the LEDs 121 arranged in the side directions, and the downward reflector 123 is provided below the LEDs 121 arranged in the downward direction.
• the LEDs are normally arranged in the downward direction on the printed circuit board 122' and the downward reflector 123 is provided below the downward LEDs 121.
• the lighting unit 120 comprises upper and lower parts by repeating a combination mentioned above.
• the LEDs 121 are normally arranged in the upward direction on the printed circuit board 122 below the upward reflector 123, and the lighting unit 120 comprises upper and lower parts by repeating a combination mentioned above.
• the lighting unit 120 could be comprised of an upper part in which the LEDs 121 are normally arranged in the upward direction on the printed circuit board 122 and middle and lower parts in which the LEDs are normally arranged in the downward direction on the printed circuit board 122 and the downward reflector 123 is provided below the downward LEDs 121.
• the LEDs 121 are normally arranged in the upward and downward directions on the printed circuit boards 122, 122 so as to form multistage subunits, the reflectors 123 and 123 are provided so as to allowing easy refraction and reflection corresponding to the upward and downward arrangements of the LEDs, and from a top to a bottom, the combination of the reflector, the LEDs, and the printed circuit board are enlarged so as to form a pyramid-like LED lighting unit.
• the LEDs 121 arranged in the multistage subunits such as the upper, middle, and lower parts have isolation layers 121a formed on a lower outer surface, a bottom outer surface or both of the lower and bottom outer surfaces of the LEDs 121 in order to improve a luminous intensity by an increase of concentration in light emitting.
• the isolation layer 121a is comprised of a material of relatively good reflection efficiency, for example attached aluminum foil, coated silver or chrome or isolation paint.
• the LEDs 121 emit the light of single color, but for a multi-pu ⁇ ose application by various light emitting effects, could emit the light of two or more colors. That is, the LEDs of red, green, yellow, white and the like are applicable in combination.
• the reflectors 123 and 123 applied to the LED lighting unit 120 could be modified to have a reflecting portion 123a of various shapes so as to reflect the light emitted from the LEDs at various angles, and thus it could adjust the traveling direction of the light arbitrarily.
• the reflector could have the straightly inclined reflecting portion.
• the reflector could have the reflecting portion of a general dome shape.
• the reflector could have the partially rounded reflecting portion, i.e. the trumpet-shaped reflecting portion.
• the reflector could have the reflecting portion of a hexagonal polyhedral structure.
• the reflector could have the reflecting portion of an octagonal polyhedral structure.
• the reflectors 123 and 123 preferably have projections formed on a surface of the reflecting portions 123a so as to achieve a multi- angled reflection of more various ways with regard to the emitted light of the LEDs.
• the projections could have a shape of a circle, an ellipse, a triangle, a quadrangle, a pentagon, or a hexagon.
• the LEDs 121 of the lighting unit 120 are allowed to adjust the brightness by controlling an electrical current with High or Low signals according to the arrangement of the LEDs.
• the lighting unit includes the arrangement of the upper and lower parts, the High signal is given to the upper part for getting the relatively high brightness and the Low signal is given to the lower part for getting the relatively low brightness.
• the cover 130 preferably comprises a body made of a material allowing the light to pass therethrough or made of a transparent material, could have various colors according to the pu ⁇ ose of usage, and could have various shapes appropriate to the arrangement of the LED lighting unit 120.
• the present invention enables various combinations using the stacking and opposite arrangements of the LEDs, could adjust the traveling direction of the emitted light arbitrarily, and could adjust the emitting efficiency easily to conform to the pu ⁇ ose, so that the present invention is especially optmized to be applied to the car.
• the LEDs 121 circumferentially disposed in the upward and downward directions open widely, i.e. spread out widely, so that a driver in other car could easily recognize the LEDs.
• the LED 121 is disposed at the center of the upward printed circuit board 122, and is inserted into the upward reflector 123. Then, when the centered LED 121 emits the light upward, the intensity of the light could be improved so as to be easily recognized.
• the present invention is configured to be proper for the signal and brake lamps for the car, and thus should be simple and compact. Accordingly, with the structure as explained above, the present invention achieves the intended object economically without adding the excessive LED lamps and other elements.
• the turn signal lamp in case of the turn signal lamp is used when a driver wants to change direction, if the driver supplies the power to the turn signal lamp, the supplied power is provided to the LED 121 through terminals at a bottom of the socket 110 and the printed circuit board 122 and 122 so as to allow the LED 121 to emit the light.
• the emitting range and speed of the present invention is greatly improved compared with conventional lighting device, and further the reflector 123, 123 are installed in both of the upward and downward directions and the LEDs 121 are provided in both of the upward and downward directions so that the light emitted therefrom is reflected by the reflector 123 and 123' Therefore, the light emitting and spreading ranges are enhanced and the car is easily identified.
• the present invention is related to a car lighting device in which LEDs are applied to a signal lamp, a brake lamp, a headlight, a breadth indication lamp and the like [67]

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

Applications Claiming Priority (2)

Publications (1)

Family

ID=34918695

Family Applications (1)

Country Status (2)

Cited By (4)

Families Citing this family (3)

Citations (2)

Family Cites Families (1)

• 2004
  • 2004-03-04 KR KR1020040014511A patent/KR100689027B1/ko active IP Right Grant
• 2005
  • 2005-03-04 WO PCT/KR2005/000597 patent/WO2005085703A1/en active Application Filing

Patent Citations (2)

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