KR101011818B1 - A headlight - Google Patents

A headlight Download PDF

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Publication number
KR101011818B1
KR101011818B1 KR1020080066370A KR20080066370A KR101011818B1 KR 101011818 B1 KR101011818 B1 KR 101011818B1 KR 1020080066370 A KR1020080066370 A KR 1020080066370A KR 20080066370 A KR20080066370 A KR 20080066370A KR 101011818 B1 KR101011818 B1 KR 101011818B1
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KR
South Korea
Prior art keywords
light emitting
lens
emitting diode
light
aspherical
Prior art date
Application number
KR1020080066370A
Other languages
Korean (ko)
Other versions
KR20100006232A (en
Inventor
김기원
Original Assignee
김기원
동선산업전자주식회사
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 김기원, 동선산업전자주식회사 filed Critical 김기원
Priority to KR1020080066370A priority Critical patent/KR101011818B1/en
Publication of KR20100006232A publication Critical patent/KR20100006232A/en
Application granted granted Critical
Publication of KR101011818B1 publication Critical patent/KR101011818B1/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
    • 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]
    • F21S41/143—Light emitting diodes [LED] the main emission direction of the LED being parallel to the optical axis of the illuminating device
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
    • B60Q1/0029—Spatial arrangement
    • B60Q1/0041—Spatial arrangement of several lamps in relation to each other
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
    • B60Q1/0029—Spatial arrangement
    • B60Q1/0035—Spatial arrangement relative to the vehicle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
    • B60Q1/02—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments
    • B60Q1/04—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights
    • 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
    • F21S41/25—Projection lenses
    • F21S41/26—Elongated lenses
    • 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
    • F21S41/25—Projection lenses
    • F21S41/265—Composite lenses; Lenses with a patch-like 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
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/20—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
    • F21S41/29—Attachment thereof
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/20—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
    • F21S41/29—Attachment thereof
    • F21S41/295—Attachment thereof specially adapted to projection lenses
    • 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
    • F21W2107/10—Use or application of lighting devices on or in particular types of vehicles for land vehicles
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S362/00—Illumination
    • Y10S362/80—Light emitting diode

Abstract

According to the present invention, not only a plurality of light emitting diodes may be installed in one installation space but also the light emitting diodes form a plurality of focal points so as not to create interfaces of different brightness.

In general, the vehicle is equipped with headlights to secure the surrounding view at dark night, and in particular, there is a device to secure the surrounding field of view by installing a plurality of lamps to obtain a brighter view of these lamps, but most of these lamps It is only a taillight or a turn signal installed at the rear side, and since a separate light chamber is formed, a light emitting diode must be installed, which requires a lot of space.

In addition, when a plurality of light emitting diodes are installed inside the lens, the light of each light emitting diode passes through the refractive surface of the lens at different angles to form a plurality of focal points on a distant ground, and the boundary of different brightness is formed by these focal points. As it was formed, there were cases where the driver's vision was disturbed.

Therefore, the present invention is intended to not only save space by installing a plurality of light emitting diodes in one installation space, but also to prevent the interface of different brightness from being generated by the focuses generated by the plurality of light emitting diodes and lenses. .

 Aspheric multilayer lens, light emitting diode, headlight, focus, boundary

Description

Headlight using aspherical multilayer lens and light emitting diodes {A headlight}

The present invention relates to a headlamp installed in a moving vehicle. In particular, a plurality of light emitting diodes may be installed in one installation space using an aspherical multilayer lens, and the focal points generated by the light emitting diodes may have different brightness. Would not make it.

Generally, headlights are installed in a dark night to secure the surrounding view. Especially, in order to secure a brighter view of the headlights, a separate installation space is formed in front of the vehicle, and then a new lamp is installed in the installation space at night. There is a device that secures the peripheral field of vision when driving, but these lamps require a separate installation space by installing a plurality of lamps on the front of the vehicle to secure a brighter field of view. It is expensive to install.

Therefore, a plurality of light emitting diodes having good luminous intensity are installed inside the lens. In this case, the light emitting diodes have a strong straightness, and as shown in FIGS. 11 and 12, the light of each light emitting diode has a different angle from each other. As they pass through the refraction surface of, the focal points at different locations are created at a distance.

Therefore, between the focal point created through the lens and another neighboring focal point, the interface of different brightness is formed, which confuses the driver's vision at night, and these lamps are mostly installed at the rear of the vehicle, Used only as a back.

Therefore, the present invention not only saves space by installing a plurality of light emitting diodes in one installation space, but also prevents the interface of different brightness from being generated by the focuses generated by the plurality of light emitting diodes and lenses. will be.

Therefore, to this end, the present invention forms a flat incidence surface for projecting the light emitted by the light emitting diode to the front and a convex refractive surface for refracting the light passing through the incidence side to the left and right, and at the same time under the refractive surface In the state in which the aspheric multilayer lens formed integrally with the second refractive surface having the same shape as the refractive surface is sandwiched between a pair of lens fasteners, the lens fixture is connected to the refractive surface and the second refractive surface of the aspherical multilayer lens. The light emitting diode is fixed to the light emitting part provided.

The present invention does not need to form a separate installation space while installing a plurality of light emitting diodes in one installation space, thereby reducing installation space and material costs, and in particular, it is possible to widen the light of the light emitting diodes having strong straightness. In addition, the focus of the neighbors formed as close as possible does not form a boundary of different brightness, which is characterized by not only bright brightness but also does not disturb the driver's view.

Hereinafter, the headlight to which the aspherical multilayer lens is applied according to an embodiment of the present invention will be described in detail.

1 and 2 are perspective views showing the headlamp according to an embodiment of the present invention, Figure 3 is an exploded perspective view of the headlamp according to an embodiment of the present invention.

As shown, the present invention is a headlamp mounted inside a back room formed in the front of a vehicle, an aspherical multilayer lens (hereinafter referred to as a lens) is coupled to a pair of lens fixtures 20 aspherical aspheric lens positioned between them 10 is fixed, and at the same time, the lens fastener 20 is coupled to the coupling portion 29 formed on the side of the light-emitting portion 30, the fastening portion 32 is to be screwed.

The aspheric multilayer lens 10 is to spread the light of the light emitting diode 33 having a strong straightness to the left and right as possible, as shown in FIG. The incidence surface 11 and the convex refracting surface 12 are integrally formed around the center, and the incidence surface 11 and the refracting surface 12 are curved long to the left and right while maintaining the same distance. .

In addition, the aspheric multilayer lens 10 forms another second refractive surface 13 below the refractive surface 12 so that the focal points generated while passing through the lens are overlapped as much as possible. The focal point passed through 12) and the focal point passed through the second refractive surface 13 are overlapped as much as possible so as not to be opened at different angles.

That is, as shown in FIG. 8, when the light of the first light emitting diode installed in the light emitting unit is incident on the flat incident surface vertically, the light passes through the convex refracting surface vertically, and the first light is transmitted to the specific position where the light passes. The focus will be created. Similarly, when light of the second light emitting diode is incident perpendicularly to the flat incident surface, the light passes vertically through the convex second refractive surface, and a second focus is generated at a specific position where the light passes. In this case, the distance between the first focus point and the second focus point is the first focus point and the second focus point because the focus is formed through the refraction plane and the second refraction plane even though the light of the light emitting diode is irradiated from the left and right through the lens. The distance between them always remains constant at close range. Therefore, when the light is irradiated on the ground of the distant ground, one overlapping light distribution pattern is formed.

In addition, at the edge of the aspherical multilayer lens 10, a pair of coupling portions 14 are formed to protrude for engagement, and at the side of the refracting surface 12 and the incident surface 11 at the same time, at least 90 degrees. The opened support surface 15 is formed.

Therefore, the aspherical multilayer lens 10 is fitted into the open space 22 of the front lens fixture 21 in a state in which the support surface 15 is supported by the rear lens fixture 25, so that the refractive surface of the lens ( 12) and the second refractive surface 13 are fixed by the rear lens fastener 25 and the front lens fastener 21 in a state where they are exposed out of the open space 22.

That is, when looking at the aspherical multilayer lens 10 located between the rear lens fixture 25 and the front lens fixture 21, the coupling portion 14 of the aspherical multilayer lens 10 is formed in the front lens fixture 21 The aspherical multi-lens lens (10) is located in the center while being screwed into the front lens fixture (21) in the state in which the rear lens fixture (25) in close contact with the support surface (15) of the lens. ) Is fixed.

At this time, the front lens fixture 21 is made of a reflector to irradiate the light passing through the lens as far forward as possible, the direction perpendicular to the refractive surface 12 of the lens on the edge of the open space 22 adjacent to the lens A pair of curved protruding surfaces 24 are formed in the horizontal direction and the horizontal direction, respectively, to collect the light spreading up and down or right and left as far as possible.

The rear lens holder 25 coupled with the front lens fixture 21 extends with the open space 22 of the front lens fixture 21 to extend the light of the LED 33 as shown in FIG. 5. The inner space 26 passing therethrough is formed, and a side wing of the inner space 26 is provided with a support wing that is in close contact with the support surface 15 of the lens fitted to the engaging groove 23 of the front lens fitting 21. 27 and the pressure frame 28 is formed.

Therefore, the lens fitted into the coupling groove 23 of the front lens fixture 21 is in close contact with the support wing 27 and the pressing frame 28 of the rear lens fixture 25 to be in a state where the movement is prohibited. The lens fixing tool 25 and the front lens fixing tool 21 are screwed to fix the lens located therebetween.

In addition, a pair of couplings 29 are formed on the side of the rear lens fixture 25, and the couplings 29 are fastened to the side of the fixing frame 31 of the light emitting part 30. It fits in the part 32 and is screwed together.

In this case, the coupling table 29 is formed to have a length longer than the length fitted to the fastening part 32, to form a space spaced between the lens fixture 20 and the light emitting part 30, and then the fastening part 32. It is intended to be coupled to. The spaced space is to form an air layer between the lens fixture 20 and the light emitting portion 30.

In addition, the light emitting unit 30 is integrally formed with the fixed frame 31 and a reflecting unit 34 protruding obliquely forward while surrounding the edge around the light emitting diode 33 seated on the substrate. Behind the fixed frame 31 is provided a cooling unit 37, that is, a cooling fan, which cools the heat generated by the light emitting diodes 33 through the vent 35 and the heat sink 36.

In this case, the light emitting unit 30 is provided with a driving module (not shown) for moving the substrate on which the light emitting diode 33 is installed back and forth according to an embodiment, and the light emitting diode 33 is vented by the driving module. As you move along (35), the distance between the focal point and the adjacent focal point can be narrowed or widened as much as possible to adjust the distance between the focal point and the focal point. At this time, the inner surface of the vent 35 may be parallel to each other but may be formed to be inclined.

Therefore, when the light emitting diode 33 installed at the upper side is moved backward by the driving module, the irradiation angle is narrowed and condensed. In addition, the light passes through the focal point passing through the refractive surface 12 and the second refractive surface 13. The distance between one focal point is widened.

Thus, as shown in FIG. 10. As a bright light distribution pattern passing through the refractive surface 12 is generated in front of the light distribution pattern generated while passing through the second refractive surface 13, a long light distribution pattern is generated in the front, thereby allowing a wider field of view to be secured. Since the light is irradiated over a long distance, the illuminance difference between the long distance and the near distance is similar, thereby ensuring a uniform view.

At this time, since the conventional headlight cannot secure the field of vision through the light directly irradiated to the ground, a shade for blocking the light directly irradiated downward is installed and the light is reflected to the upper part of the upper room to reflect the reflector. Is refracted to the ground by the irradiation. Therefore, the conventional headlight is to secure a wide field of view to the front of the vehicle by the refracted light, but as the irradiated light is partially hidden by the shade, it is not possible to secure a bright field of view. It was only used.

In the present invention, however, the lens having a refractive surface and a second refractive surface and a plurality of light emitting diodes having a small irradiation angle are directly irradiated downward, thereby passing the second refractive surface 13 and forming a lens in front of the light distribution pattern formed at a short distance. Another light distribution pattern passing through the refractive surface 12 is formed to form a long light distribution pattern forward.

Therefore, it is not necessary to install shade inside the back room, which can reduce material cost and installation cost, and in particular, there is no light loss due to shade, which is characterized by bright and wide field of view.

1 is an external perspective view of a headlamp according to an embodiment of the present invention.

Figure 2 is a perspective view of the plumbing headlamp according to the embodiment of the present invention.

3 is an exploded perspective view of the headlamp according to the embodiment of the present invention.

4 is an enlarged perspective view of the aspherical multilayer lens of FIG. 3;

5 is an enlarged perspective view of the rear lens fixture of FIG. 3;

6 is a longitudinal sectional view of the headlamp according to the embodiment of the present invention.

7 is a cross-sectional view of the headlamp according to the embodiment of the present invention.

8 is a state diagram used in the headlight according to an embodiment of the present invention.

9 is a state diagram used in the headlight according to the second embodiment of the present invention.

10 is a state diagram used in the headlight according to an embodiment of the present invention.

11 is a use state diagram of a conventional headlamp.

12 is a state diagram of use of a conventional headlamp.

<Description of the symbols for the main parts of the drawings>

10: Aspheric multilayer lens 11: Incident surface

12: refractive surface 13: second refractive surface

14 coupling part 15: backing surface

20: Lens Fixture 21: Front Lens Fixture

22: open space 23: coupling groove

24: curved projection surface 25: rear lens fixture

26: internal space 27: support wing

28: Gaupte 29: Bonding table

30: light emitting unit 31: fixed frame

32: Fastening part 33: Light emitting diode

34: Reflector 35: Vent

36: heat sink 37: cooling unit

Claims (7)

delete In a headlamp for a vehicle provided with a light emitting diode that reflects light inside the lamp compartment and scans light forward, The headlamp integrally forms a flat incidence plane 11 for projecting the light emitted by the light emitting diode to the front and a convex refracting plane for refracting the light passing through the incidence plane 11 from side to side, and then curved it to the left and right. The aspherical multilayer lens 10 having the same shape as the second refractive surface 13 integrally formed under the refractive surface 12 and sandwiched between the pair of lens fasteners 20. The lens fixture 20 is fixed to the light emitting part 30 in which the number of light emitting diodes corresponding to the refractive surface and the second refractive surface 13 of the aspherical multilayer lens 10 is installed. In addition, the lens fixture 20 is coupled to the front lens fixture 21, which forms an open space and the rear lens fixture 25, which extends through the open space corresponding to the aspherical surface located therebetween, The coupling part 14 of the multilayer lens 10 is fitted into the coupling groove part 23 of the front lens fitting 21, and at the same time, the support surface 15 of the aspherical multilayer lens 10 is the rear lens fitting 25. Aspheric multilayer lens and the headlamp using the light emitting diode, characterized in that the fixed surface is fixed in the state exposed to the refractive surface and the second refractive surface 13 of the aspherical multilayer lens 10 in close contact with the support wing (27) of the . The method of claim 2, An aspheric multilayer lens and a light emitting diode, characterized in that the front lens fixture 21 for fixing the aspherical multilayer lens 10 is a reflector for irradiating forward the light passing through the aspherical multilayer lens 10 to the maximum. Headlights The method of claim 3, The front lens fixture 21 has an aspherical multilayer lens, characterized in that a pair of curved projection surface 24 is formed in a direction perpendicular to the refraction surface exposed outside the open space 22 and a horizontal direction, respectively; Headlight using light emitting diode The method of claim 2, The light emitting unit 30 is integrally formed with the fixed frame 31 and a reflecting unit 34 protruding obliquely forward while surrounding the rim around each light emitting diode seated on the substrate. 31. An aspherical multilayer lens and a headlamp using a light emitting diode, which are provided with a cooling part 37 for cooling the heat generated by the light emitting diode through a vent 35 and a heat sink 36 at the rear. The method of claim 5, An aspherical multilayer lens and a headlamp using the light emitting diodes are installed in the light emitting portion 30, which is provided with a driving module for moving each light emitting diode back and forth along the air vent 35. delete
KR1020080066370A 2008-07-09 2008-07-09 A headlight KR101011818B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020080066370A KR101011818B1 (en) 2008-07-09 2008-07-09 A headlight

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020080066370A KR101011818B1 (en) 2008-07-09 2008-07-09 A headlight

Publications (2)

Publication Number Publication Date
KR20100006232A KR20100006232A (en) 2010-01-19
KR101011818B1 true KR101011818B1 (en) 2011-02-07

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KR1020080066370A KR101011818B1 (en) 2008-07-09 2008-07-09 A headlight

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Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWM434033U (en) * 2011-09-29 2012-07-21 Sensor Active Technology Inc LED lamp set
KR101327088B1 (en) * 2011-12-06 2013-11-07 현대자동차주식회사 Led lamp device
DE102020127952A1 (en) 2020-10-23 2022-04-28 HELLA GmbH & Co. KGaA Lighting device for vehicles

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003123509A (en) * 2001-10-05 2003-04-25 Stanley Electric Co Ltd Projector type head lamp
JP2003141913A (en) * 2001-11-07 2003-05-16 Stanley Electric Co Ltd Illumination tool for vehicle
KR20040006661A (en) * 2002-07-13 2004-01-24 엘지전자 주식회사 Timing recovery Apparatus
KR200406661Y1 (en) * 2005-08-17 2006-01-24 에스엘 주식회사 Infrared lamps for cars
JP2006156301A (en) * 2004-12-01 2006-06-15 Ichikoh Ind Ltd Vehicle headlight unit

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003123509A (en) * 2001-10-05 2003-04-25 Stanley Electric Co Ltd Projector type head lamp
JP2003141913A (en) * 2001-11-07 2003-05-16 Stanley Electric Co Ltd Illumination tool for vehicle
KR20040006661A (en) * 2002-07-13 2004-01-24 엘지전자 주식회사 Timing recovery Apparatus
JP2006156301A (en) * 2004-12-01 2006-06-15 Ichikoh Ind Ltd Vehicle headlight unit
KR200406661Y1 (en) * 2005-08-17 2006-01-24 에스엘 주식회사 Infrared lamps for cars

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