CN107366871B - Lens type automobile dipped headlight system - Google Patents
Lens type automobile dipped headlight system Download PDFInfo
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- CN107366871B CN107366871B CN201710769311.8A CN201710769311A CN107366871B CN 107366871 B CN107366871 B CN 107366871B CN 201710769311 A CN201710769311 A CN 201710769311A CN 107366871 B CN107366871 B CN 107366871B
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- 238000005286 illumination Methods 0.000 abstract description 6
- 238000000149 argon plasma sintering Methods 0.000 abstract description 2
- 230000018109 developmental process Effects 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
Classifications
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- 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
- F21V7/10—Construction
- F21V7/18—Construction with provision for folding or collapsing
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- 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
- F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
- F21V29/50—Cooling arrangements
- F21V29/70—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
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- 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]
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
The invention discloses a lens type automobile dipped headlight system which has a simple structure and can realize dipped headlight illumination by utilizing strong light scattering, converging, reflecting and shielding emitted by an LED light source. The lens type automobile dipped headlight system comprises an LED light source, a condensing lens group, a reflecting mirror group, a light shielding plate and a lens; the LED light source is arranged below the condenser lens group; the reflecting mirror group comprises a lens body, wherein the lower surface of the lens body is provided with an incident surface unit, the upper surface of the lens body is provided with a convex block, one end of the convex block is provided with a reflecting surface unit, and the other end of the convex block is provided with a curved surface emergent surface unit; the incidence surface unit is a convex mirror, the reflection surface unit is an arc-shaped curved surface, and the center of the reflection surface unit is positioned on the geometric central axis of the incidence surface unit; the condensing lens group is positioned below the incident surface unit; the light shielding plate is positioned below the condensing focal point of the emergent surface unit. The mirror type automobile dipped beam system has better light concentration and high light utilization rate.
Description
Technical Field
The invention relates to a lamp device, in particular to a lens type automobile dipped headlight system.
Background
It is known that: the front lighting device of the automobile has the main function of realizing the lighting of the road conditions of the front running of the automobile when the automobile runs in an environment with lower visibility, so that a driver can clearly know the road conditions of the front running.
The front lighting device of the automobile comprises an automobile low beam lighting device and an automobile high beam lighting device; the existing low beam lighting devices of automobiles increasingly adopt projection type low beam lamps. The projection type dipped headlight of the automobile has the structure and working principle that an optical system of the projection type dipped headlight consists of filaments, a reflector, shading screens and convex lenses. The light emitted by the filament is reflected by the reflector and irradiates forwards, part of the light is shielded by the shading screen, and then the light is focused on a 25-meter screen forwards by the convex lens to map the shape of the shading screen, so that the aim of light distribution is achieved. The shading screen has the function of shading the required level of light distribution and the 15-degree cut-off line on a 25-meter screen.
With the continuous development of the LED technology, it is believed that the LED light source with high power and small size is improved to a certain extent, but the improvement is limited, the great advantage of the LED light source is well known, and the LED light source is also applied to automobiles at present and is popular, but there are still a plurality of technical problems in application to automobile low beam systems, so the development of the LED light source for a headlight and an automobile low beam system is always a hot spot and a problem in the field.
Disclosure of Invention
The invention aims to solve the technical problem of providing a lens type automobile dipped headlight system which has a simple structure and can realize automobile dipped headlight illumination by utilizing strong light scattering, converging, reflecting and shielding emitted by an LED light source.
The technical scheme adopted for solving the technical problems is as follows: the lens type automobile dipped beam system comprises an LED light source, a collecting lens group, a reflecting mirror group, a light shielding plate and a lens; the LED light source is arranged below the condenser lens group;
the reflecting mirror group comprises a lens body, an incident surface unit is arranged on the lower surface of the lens body, a convex block is arranged on the upper surface of the lens body, a reflecting surface unit is arranged at one end of the convex block, and a curved emergent surface unit is arranged at the other end of the convex block;
the incidence surface unit is a convex mirror, the reflection surface unit is an arc-shaped curved surface which is bent towards the body, and the center of the reflection surface unit is positioned on the geometric central axis of the incidence surface unit; the emergent surface unit is positioned at the opposite side of the reflecting surface unit; the condensing lens group is positioned below the incident surface unit; the emergent surface unit is a curved surface with a condensing focus; the light shielding plate is positioned below the condensing focal point of the emergent surface unit;
the light shielding plate is positioned between the lens and the emergent surface unit, and the lens is a convex lens.
Preferably, the light source has at least two light collecting lens units, and the light collecting lens group is provided with at least two light collecting lens units; the light sources are in one-to-one correspondence with the condenser units, and the lens body of the reflector group is provided with a plurality of incident surface units, reflecting surface units and emergent surface units;
the condensing lens units are in one-to-one correspondence with the incident surface units, and the incident surface units, the reflecting surface units and the emergent surface units are in one-to-one correspondence.
Further, an outgoing surface unit of an inclined plane is arranged on the outgoing surface unit on the convex block of the reflecting mirror group, which is close to the side surface of the convex block, and an included angle alpha is formed between the inclined plane and the side surface of the convex block, and the included angle alpha is 55-90 degrees.
Further, the lens type automobile dipped headlight system further comprises a condensing lens base, a lampshade and a lens frame; the light source is arranged on the bottom plate, and the collecting lens group is arranged on the collecting lens base;
the collecting mirror base is arranged on the bottom plate, and the reflecting mirror group is arranged on the collecting mirror base; the light shielding plate is arranged on the bottom plate; the lampshade is fixedly connected with the bottom plate, covers the reflecting mirror group and is provided with an opening at one end; the lens frame is located at one end of the opening of the lampshade and fixedly connected with the lampshade, and the lens is mounted on the lens frame.
Further, the lower surface of the bottom plate is provided with a radiator.
Furthermore, the lens frame adopts a telescopic adjusting frame.
Further, the light sources have five, and the condenser lens unit has five.
The beneficial effects of the invention are as follows: according to the lens type automobile dipped beam system, light emitted by the LED light source is diffused through the condensing lens group, condensed and reflected through the reflecting mirror group, emitted by the curved surface emergent surface unit and blocked by the light shielding plate, so that the automobile dipped beam illumination of the LED light source is realized. Because in the propagation path of light, only one reflection of the reflector group is passed, the loss of light in the propagation path caused by reflection can be avoided, and meanwhile, the light emitted by the LED light source is condensed by the reflector group, so that the light concentration degree is better, and the light utilization rate is higher.
Drawings
FIG. 1 is a perspective view of a lens-type automotive low beam system;
FIG. 2 is a schematic view of the principle of light rays of a lens-type low beam system for a vehicle according to an embodiment of the present invention;
FIG. 3 is a perspective view of a lens-type low beam system for an automobile in an embodiment of the invention;
FIG. 4 is an exploded view of a lens-type low beam system for an automobile in an embodiment of the present invention;
FIG. 5 is a front view of a lens-type low beam system for an automobile in an embodiment of the invention;
FIG. 6 is a top view of a lens-type low beam system for an automobile in an embodiment of the invention;
FIG. 7 is a cross-sectional view A-A of FIG. 6;
FIG. 8 is a perspective view of a mirror assembly in an embodiment of the invention;
fig. 9 is a front view of a mirror group in an embodiment of the invention;
FIG. 10 is a side view of a mirror assembly in an embodiment of the invention;
FIG. 11 is a partial enlarged view at B in FIG. 7;
the figures indicate: 1-LED light source, 2-condensing lens group, 21-condensing lens unit, 3-reflector group, 31-incident surface unit, 32-reflecting surface unit, 33-emergent surface unit, 4-light shielding plate, 5-lens, 6-base plate, 7-condensing lens base, 8-lamp shade, 9-lens frame and 10-radiator.
Detailed Description
The invention will be further described with reference to the drawings and examples.
As shown in fig. 1 to 11, the lens type low beam system for the automobile comprises an LED light source 1, a condenser lens group 2, a reflector group 3, a light shielding plate 4 and a lens 5; the LED light source 1 is arranged below the condenser lens group 2;
the reflecting mirror group 3 comprises a lens body, an incident surface unit 31 is arranged on the lower surface of the lens body, a convex block is arranged on the upper surface of the lens body, a reflecting surface unit 32 is arranged at one end of the convex block, and a curved emergent surface unit 33 is arranged at the other end of the convex block;
the incident surface unit 31 is a convex mirror, the reflecting surface unit 32 is an arc-shaped curved surface, and the center of the reflecting surface unit 32 is positioned on the geometric center axis of the incident surface unit 31; the exit surface unit 33 is located at the opposite side of the reflection surface unit 32; the condensing lens group 2 is positioned below the incident surface unit 31; the exit surface unit 33 is a curved surface with a condensing focus; the light shielding plate 4 is positioned below the condensing focal point of the emergent surface unit 33;
the light shielding plate 4 is located between the lens 5 and the emergent surface unit 33, and the lens 5 is a convex lens. Specifically, the focal points of the LED light source 1 and the condenser lens group 2 are located on a straight line in the same vertical direction.
During operation:
as shown in fig. 2, the light emitted from the LED light source 1 is condensed by the condenser lens group 2, and then is incident by the incident surface unit 31 of the reflector group 3, and since the incident surface unit 31 is a convex mirror, the incident surface unit 31 condenses the light, the condensed light irradiates the reflecting surface unit 32, the light is reflected by the reflecting surface unit 32, and then is emitted by the emitting surface unit 33, and since the emitting surface unit 33 is a curved surface having a condensed focal point; the light emitted from the exit surface unit 33 is thus diverged after passing through the condensing focal point, thereby forming an irradiation region having a large area. Meanwhile, a shielding plate 4 is arranged below the condensing focus of the emergent surface unit 33, so that shielding of disordered light is realized, and a cut-off line is formed.
Because of the lens type automobile dipped headlight system, the lens type automobile dipped headlight system further comprises a lens 5, the light shielding plate 4 is located between the lens 5 and the emergent surface unit 33, and the lens 5 is a convex lens. Thereby, the light emitted from the emission surface unit 33 can be adjusted so that the emitted light is parallel light.
In summary, in the lens-type low beam system for automobile according to the present invention, the light emitted by the LED light source is condensed and reflected by the condensing lens group and the reflecting mirror group, and then emitted by the curved exit surface unit 33, and the light is blocked by the light blocking plate, so as to achieve low beam illumination for automobile by the LED light source. Compared with the existing front illuminating lamp for the automobile, which utilizes the LED light source, the light propagation path is short, and meanwhile, in the light propagation path, the light only passes through primary reflection of the reflector group, so that loss of the light in the propagation path due to reflection can be avoided, and meanwhile, the light emitted by the LED light source is condensed through the reflector group, so that the light concentration is better, and the light utilization rate is higher.
In order to adjust the light emitted by the exit surface unit 33 so that the emitted light is parallel light, the lens type automobile dipped headlight system further comprises a lens 5, the light shielding plate 4 is positioned between the lens 5 and the exit surface unit 33, and the lens 5 is a convex lens.
In order to meet the light distribution requirement, as shown in fig. 8, further, the exit surface unit 33 on the convex block of the reflecting mirror group 3 is provided with an exit surface unit 33 with an inclined surface near the side surface of the convex block, and the inclined surface and the side surface of the convex block have an included angle α, and the included angle α is 55 ° to 90 °.
In order to ensure illumination intensity, further, the LED light source 1 has at least two, and the condenser lens unit 21 has at least two; the LED light sources 1 are in one-to-one correspondence with the condenser units 21, and the lens body of the reflector group 3 is provided with a plurality of incident surface units 31, reflecting surface units 32 and emergent surface units 33;
the condensing lens units 21 are in one-to-one correspondence with the incident surface units 31, and the incident surface units 31, the reflecting surface units 32 and the emergent surface units 33 are in one-to-one correspondence. Specifically, the LED light sources 1 have five, and the condenser lens group unit 21 has five.
In order to facilitate the installation of the lens type automobile dipped headlight system, simplify the structure and facilitate the maintenance, the lens type automobile dipped headlight system further comprises a condenser base 7, a lampshade 8 and a lens frame 9; the light source 1 is arranged on the bottom plate 6, and the collecting lens group 2 is arranged on the collecting lens base 7;
the collecting mirror base 7 is arranged on the bottom plate 6, and the reflecting mirror group 3 is arranged on the collecting mirror base 7; the light shielding plate 4 is arranged on the bottom plate 6; the lampshade 8 is fixedly connected with the bottom plate 6, and the lampshade 8 covers the reflector group 3 and is provided with an opening at one end; the lens frame 9 is located at one end of the opening of the lampshade 8 and fixedly connected with the lampshade 8, and the lens 5 is mounted on the lens frame 9. Specifically, the bottom board 6 is a PCB bottom board.
In order to prolong the service life of the LED light source 1 and avoid rapid aging of the LED light source 1 caused by long-time illumination and heating, further, a radiator 10 is arranged on the lower surface of the bottom plate 6.
In order to facilitate the adjustment of the lens 5, further, the lens holder 9 adopts a telescopic adjusting frame.
Examples
The lens type automobile dipped headlight system shown in fig. 4 comprises an LED light source 1, a condenser lens group 2, a reflector group 3, a shading plate 4, a lens 5, a lampshade 8 and a lens frame 9; the LED light source 1 is arranged below the condenser lens group 2;
the light source 1 is arranged on the bottom plate 6, and the collecting lens group 2 is arranged on the collecting lens base 7; the collecting mirror base 7 is arranged on the bottom plate 6, and the reflecting mirror group 3 is arranged on the collecting mirror base 7; the light shielding plate 4 is arranged on the bottom plate 6;
the reflecting mirror group 3 comprises a lens body, an incident surface unit 31 is arranged on the lower surface of the lens body, a convex block is arranged on the upper surface of the lens body, a reflecting surface unit 32 is arranged at one end of the convex block, and a curved emergent surface unit 33 is arranged at the other end of the convex block; the projection of the reflector group 3 is provided with an emergent surface unit 33, and the emergent surface unit 33 which is close to the side surface of the projection is provided with an inclined surface, and the inclined surface and the side surface of the projection have an included angle alpha, and the included angle alpha is 55-90 degrees.
The incident surface unit 31 is a convex mirror, the reflecting surface unit 32 is an arc-shaped curved surface, and the center of the reflecting surface unit 32 is positioned on the geometric center axis of the incident surface unit 31; the exit surface unit 33 is located at the opposite side of the reflection surface unit 32; the condensing lens group 2 is positioned below the incident surface unit 31; the exit surface unit 33 is a curved surface with a condensing focus; the light shielding plate 4 is positioned below the condensing focal point of the emergent surface unit 33; the light shielding plate 4 is located between the lens 5 and the emergent surface unit 33, and the lens 5 is a convex lens.
The lampshade 8 is fixedly connected with the bottom plate 6, and the lampshade 8 covers the reflector group 3 and is provided with an opening at one end; the lens frame 9 is located at one end of the opening of the lampshade 8 and fixedly connected with the lampshade 8, and the lens 5 is mounted on the lens frame 9.
The LED light sources 1 have five, and the condenser lens unit 21 has five; the LED light sources 1 are in one-to-one correspondence with the condenser units 21, and the lens body of the reflector group 3 is provided with a plurality of incident surface units 31, reflecting surface units 32 and emergent surface units 33; the condensing lens units 21 are in one-to-one correspondence with the incident surface units 31, and the incident surface units 31, the reflecting surface units 32 and the emergent surface units 33 are in one-to-one correspondence.
The lower surface of the base plate 6 is provided with a radiator 10. The lens frame 9 adopts a telescopic adjusting frame.
During the application process:
as shown in fig. 2, the light emitted from the LED light source 1 mounted on the bottom plate 6 passes through the condenser lens group 2 on the condenser lens base 7, and is incident on the incident surface unit 31 of the mirror group 3, and the incident surface unit 31 is a convex mirror, so that the incident surface unit 31 condenses the light, and the condensed light irradiates the reflecting surface unit 32, reflects the light by the reflecting surface unit 32, and then is emitted from the emitting surface unit 33, and the emitting surface unit 33 is a curved surface having a condensed focal point; the light emitted from the exit surface unit 33 is thus diverged after passing through the condensing focal point, thereby forming an irradiation region having a large area. Meanwhile, shielding of the scattered light is achieved through a shielding plate 4 arranged below the condensing focus of the emergent face unit 33, and a cut-off line is formed.
Claims (4)
1. Lens formula car passing light system, its characterized in that: comprises an LED light source (1), a collecting lens group (2), a reflecting mirror group (3), a shading plate (4) and a lens (5); the LED light source (1) is arranged below the collecting lens group (2);
the reflecting mirror group (3) comprises a lens body, an incident surface unit (31) is arranged on the lower surface of the lens body, a transparent lug is arranged on the upper surface of the lens body, a reflecting surface unit (32) is arranged at one end of the lug, and a curved emergent surface unit (33) is arranged at the other end of the lug;
the incidence surface unit (31) is a convex mirror, the reflection surface unit (32) is an arc-shaped curved surface which is bent towards the body, and the center of the reflection surface unit (32) is positioned on the geometric center axis of the incidence surface unit (31); the exit surface unit (33) is positioned at the opposite side of the reflecting surface unit (32); the condensing lens group (2) is positioned below the incidence surface unit (31); the emergent surface unit (33) is a curved surface with a condensing focus; the light shielding plate (4) is positioned below the light focusing focal point of the emergent surface unit (33);
the light shielding plate (4) is positioned between the lens (5) and the emergent surface unit (33), and the lens (5) is a convex lens;
the LED light source (1) is at least provided with two, and the collecting lens group (2) is at least provided with two collecting lens units (21); the LED light sources (1) are in one-to-one correspondence with the condenser units (21), and the lens body of the reflector group (3) is provided with a plurality of incidence surface units (31), reflection surface units (32) and emergent surface units (33);
the condensing lens units (21) are in one-to-one correspondence with the incident surface units (31), and the incident surface units (31), the reflecting surface units (32) and the emergent surface units (33) are in one-to-one correspondence;
an emergent surface unit (33) of the reflecting mirror group (3) on the convex block is provided with an emergent surface unit (33) of an inclined surface close to the side surface of the convex block, the inclined surface and the side surface of the convex block have an included angle alpha, and the included angle alpha is 55-90 degrees;
the lens mirror also comprises a condensing lens base (7), a lampshade (8) and a lens mirror bracket (9); the light source (1) is arranged on the bottom plate (6), and the collecting lens group (2) is arranged on the collecting lens base (7);
the collecting mirror base (7) is arranged on the bottom plate (6), and the reflecting mirror group (3) is arranged on the collecting mirror base (7); the light shielding plate (4) is arranged on the bottom plate (6); the lampshade (8) is fixedly connected with the bottom plate (6), the reflecting mirror group (3) is covered by the lampshade (8), and one end of the reflecting mirror group is open; the lens mirror frame (9) is located at one end of the opening of the lampshade (8) and is fixedly connected with the lampshade (8), and the lens (5) is mounted on the lens mirror frame (9).
2. The lenticular low beam system of claim 1, wherein: the lower surface of the bottom plate (6) is provided with a radiator (10).
3. The lenticular low beam system of claim 2, wherein: the lens frame (9) adopts a telescopic adjusting frame.
4. A lens type low beam system for an automobile as claimed in claim 3, wherein: the LED light source (1) has five, and the condenser lens unit (21) has five.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710769311.8A CN107366871B (en) | 2017-08-31 | 2017-08-31 | Lens type automobile dipped headlight system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710769311.8A CN107366871B (en) | 2017-08-31 | 2017-08-31 | Lens type automobile dipped headlight system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107366871A CN107366871A (en) | 2017-11-21 |
| CN107366871B true CN107366871B (en) | 2024-03-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710769311.8A Active CN107366871B (en) | 2017-08-31 | 2017-08-31 | Lens type automobile dipped headlight system |
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| CN (1) | CN107366871B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109099384B (en) * | 2018-09-27 | 2024-02-06 | 华域视觉科技(上海)有限公司 | Novel PES (polyether sulfone) light type design structure and method for car lamp |
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| WO2015001733A1 (en) * | 2013-07-01 | 2015-01-08 | 株式会社小糸製作所 | Vehicle headlamp |
| CN105423216A (en) * | 2015-12-14 | 2016-03-23 | 成都恒坤光电科技有限公司 | Light ray collection device and headlamp |
| CN205640631U (en) * | 2016-04-26 | 2016-10-12 | 曹红曲 | Car passing lamp lighting components and car passing lamp |
| CN107023795A (en) * | 2017-05-02 | 2017-08-08 | 东莞市长资实业有限公司 | A kind of automotive LED headlamp module with distance-light function |
| CN207279529U (en) * | 2017-08-31 | 2018-04-27 | 重庆佧爱光电科技有限公司 | The automobile short-distance system of lens type |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4047185B2 (en) * | 2003-02-06 | 2008-02-13 | 株式会社小糸製作所 | Vehicle headlamp and light emitting module |
| US7410282B2 (en) * | 2005-10-25 | 2008-08-12 | Visteon Global Technologies, Inc. | Bi-functional headlight module |
-
2017
- 2017-08-31 CN CN201710769311.8A patent/CN107366871B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015001733A1 (en) * | 2013-07-01 | 2015-01-08 | 株式会社小糸製作所 | Vehicle headlamp |
| CN105423216A (en) * | 2015-12-14 | 2016-03-23 | 成都恒坤光电科技有限公司 | Light ray collection device and headlamp |
| CN205640631U (en) * | 2016-04-26 | 2016-10-12 | 曹红曲 | Car passing lamp lighting components and car passing lamp |
| CN107023795A (en) * | 2017-05-02 | 2017-08-08 | 东莞市长资实业有限公司 | A kind of automotive LED headlamp module with distance-light function |
| CN207279529U (en) * | 2017-08-31 | 2018-04-27 | 重庆佧爱光电科技有限公司 | The automobile short-distance system of lens type |
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| CN107366871A (en) | 2017-11-21 |
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