CN102767773A - Light-emitting diode (LED) automobile dipped headlight and manufacturing method thereof - Google Patents
Light-emitting diode (LED) automobile dipped headlight and manufacturing method thereof Download PDFInfo
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- CN102767773A CN102767773A CN2012102940493A CN201210294049A CN102767773A CN 102767773 A CN102767773 A CN 102767773A CN 2012102940493 A CN2012102940493 A CN 2012102940493A CN 201210294049 A CN201210294049 A CN 201210294049A CN 102767773 A CN102767773 A CN 102767773A
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Abstract
Provided are a light-emitting diode (LED) automobile dipped headlight and a manufacturing method thereof. Tungsten halogen lamps are universally adopted as light sources of existing automobile headlamps, and the light sources are high in working temperature, short in service lives and poor in lighting effect. The LED automobile dipped headlight comprises a casing (1), a printed circuit board (PCB) (2) is installed in the casing and connected with an LED light source (3), a Fresnel lens group is placed in front of the LED light source and provided with a Fresnel rear lens (4), the front end of the casing is provided with an aspheric-surface converging lens (5), and a diaphragm (6) is arranged between the Fresnel rear lens and the aspheric-surface converging lens. The manufacturing method is used for the LED automobile dipped headlight.
Description
Technical field:
the present invention relates to a kind of LED automobile dipped headlight that is used for automobile and preparation method thereof.
Background technology:
existing car headlamp generally adopts halogen tungsten lamp as light source, and this light source works temperature is high, the life-span is low, and light efficiency is poor.Also there is the vehicle of higher-end to be equipped with the LED car headlamp in addition; But taked tens light source independence luminous intensity distributions to utilize the stack of light type to realize light distribution effect at last; The "cut-off"line of this configuration is unintelligible, and LED or face shield location have error then can cause "cut-off"line that " ghost image " takes place slightly
though adopt halogen tungsten lamp lower as the light source cost, the halogen tungsten lamp volume that headlamp uses is little, and power is big, works self to produce the high temperature of several Baidu, causes a hidden trouble for easily light fixture and car load.In addition its life-span lower, the situation of light source can take place often to change, bring very big inconvenience to the consumer.Its light efficiency is lower once more, and the 55W luminous flux is merely 1500 lm, does not also meet the main flow of world's energy-conserving and environment-protective.
are exactly because plurality of LEDs can not keep the absolute unanimity in light type position that dead line appearance " ghost image " takes place in the superimposed light type or dead line is unintelligible than the problem that is easier to occur through the LED lower beam headlamp of superimposed light type design, cause the not good impression of vision to the people.
Summary of the invention:
It is clear that
the purpose of this invention is to provide a kind of dead line, and advantages of small volume and with low cost is suitable for LED automobile dipped headlight, the preparation method of batch process.
Above-mentioned purpose realizes through following technical scheme:
a kind of LED automobile dipped headlight; Its composition comprises: housing, in the described housing pcb board is housed, and described pcb board connects led light source; The Fresnel Lenses group is placed in described led light source the place ahead; Described Fresnel Lenses group has the Fresnel rear lens, and described housing front end has aspherical condenser, between described Fresnel rear lens and described aspherical condenser, diaphragm is housed.
described LED automobile dipped headlight, described led light source, described Fresnel Lenses group, described Fresnel rear lens all are contained in the described housing.
described LED automobile dipped headlight, described Fresnel Lenses group comprises one group of Fresnel front lens that is arranged in parallel.
described LED automobile dipped headlight; Described led light source is the luminous angles of 30-80 degree; Described Fresnel front lens model focal length 15mm, size 15 * 15mm, described Fresnel rear lens model focal length 60mm, dimension D=100mm, described pcb board is an aluminium base; The size conic=of described aspherical condenser-0.56, R=30mm, described diaphragm model 15 degree dead line diaphragms.
described LED automobile dipped headlight; Its light path is: led light source is installed on the pcb board of a square dot matrix; Pcb board is placed on the focal position of Fresnel Lenses group, and the light that sends via LED has produced collimated light beam through the corresponding Fresnel Lenses group in its place ahead, and the light beam process Fresnel rear lens focus behind the collimation is on its focus; Produce bigger point source of light; Place diaphragm in the point source of light position, and place the aspherical condenser that focus is identical with Fresnel Lenses, formed a perfect car headlamp dipped beam light type lamp at the diaphragm rear.
The preparation method of
a kind of LED automobile dipped headlight; Led light source is welded or is bonded in formation light source dot matrix on the pcb board; It is the coaxial position of focus that the Fresnel Lenses group is connected to the light source; The Fresnel rear lens is placed on the 10mm place, the place ahead of Fresnel Lenses group, diaphragm is placed on the focal position of Fresnel rear lens, at last aspherical condenser is placed in the position that its focus overlaps with diaphragm.
Beneficial effect:
1. the present invention have been introduced led light source and have been solved that traditional headlamp halogen tungsten lamp temperature is high, the life-span is short and the shortcoming of light efficiency difference, this product dead line clear not ghost image.
2. the present invention produce dead line " ghost image " or unsharp problem through optimizing the light emitting structures of led light source when having eliminated plurality of LEDs light source luminous intensity distribution.
3. the present invention have alleviated the weight of light fixture through a large amount of Fresnel Lenses that use lightweight and portable in volume, have reduced economic expenditure, have improved the life-span of light fixture.
4. the present invention is simple in structure, and manufacturing process is also very easy, and exploitation and production cost significantly reduce, and practicality is more extensive.
Description of drawings:
accompanying drawing 1 is the structural representation of this product.
The specific embodiment:
Embodiment 1:
a kind of LED automobile dipped headlight; Its composition comprises: housing 1, pcb board 2 is housed in the described housing, and described pcb board connects led light source 3; The Fresnel Lenses group is placed in described led light source the place ahead; Described Fresnel Lenses group has Fresnel rear lens 4, and described housing front end has aspherical condenser 5, between described Fresnel rear lens and described aspherical condenser, diaphragm 6 is housed.
described LED automobile dipped headlight, described led light source, described Fresnel Lenses group, described Fresnel rear lens all are contained in the described housing.
described LED automobile dipped headlight, described Fresnel Lenses group comprises one group of Fresnel front lens 7 that is arranged in parallel.
described LED automobile dipped headlight; Described led light source is the luminous angles of 30-80 degree; Described Fresnel front lens model focal length 15mm, size 15 * 15mm, described Fresnel rear lens model focal length 60mm, dimension D=100mm, described pcb board is an aluminium base; The size conic=of described aspherical condenser-0.56, R=30mm, described diaphragm model 15 degree dead line diaphragms.
Embodiment 2:
described LED automobile dipped headlight; Its light path is: led light source is installed on the pcb board of a square dot matrix; Pcb board is placed on the focal position of Fresnel Lenses group, and the light that sends via LED has produced collimated light beam through the corresponding Fresnel Lenses group in its place ahead, and the light beam process Fresnel rear lens focus behind the collimation is on its focus; Produce bigger point source of light; Place diaphragm in the point source of light position, and place the aspherical condenser that focus is identical with Fresnel Lenses, formed a perfect car headlamp dipped beam light type lamp at the diaphragm rear.
Embodiment 3:
The preparation method of
a kind of LED automobile dipped headlight; Led light source is welded or is bonded in formation light source dot matrix on the pcb board; It is the coaxial position of focus that the Fresnel Lenses group is connected to the light source; The Fresnel rear lens is placed on the 5-15mm place, the place ahead of Fresnel Lenses group, diaphragm is placed on the focal position of Fresnel rear lens, at last aspherical condenser is placed in the position that its focus overlaps with diaphragm.
Embodiment 4:
The preparation method of
embodiment 3 described LED automobile dipped headlights; Led light source is welded or is bonded in formation light source dot matrix on the pcb board; It is the coaxial position of focus that the Fresnel Lenses group is connected to the light source; The Fresnel rear lens is placed on the 5mm place, the place ahead of Fresnel Lenses group, diaphragm is placed on the focal position of Fresnel rear lens, at last aspherical condenser is placed in the position that its focus overlaps with diaphragm.
Embodiment 5:
The preparation method of
embodiment 3 described LED automobile dipped headlights; Led light source is welded or is bonded in formation light source dot matrix on the pcb board; It is the coaxial position of focus that the Fresnel Lenses group is connected to the light source; The Fresnel rear lens is placed on the 10mm place, the place ahead of Fresnel Lenses group, diaphragm is placed on the focal position of Fresnel rear lens, at last aspherical condenser is placed in the position that its focus overlaps with diaphragm.
Embodiment 6:
The preparation method of
embodiment 3 described LED automobile dipped headlights; Led light source is welded or is bonded in formation light source dot matrix on the pcb board; It is the coaxial position of focus that the Fresnel Lenses group is connected to the light source; The Fresnel rear lens is placed on the 15mm place, the place ahead of Fresnel Lenses group, diaphragm is placed on the focal position of Fresnel rear lens, at last aspherical condenser is placed in the position that its focus overlaps with diaphragm.
Embodiment 7:
embodiment 1 described LED automobile dipped headlight; Described led light source is the luminous angles of 30 or 40 or 50 or 60 or 70 or 80 degree; Described Fresnel Lenses group model focal length 15mm, size 15 * 15mm, described Fresnel rear lens model focal length 60mm, dimension D=100mm, described pcb board is an aluminium base; The size conic=of described aspherical condenser-0.56, R=30mm, described diaphragm model 15 degree dead line diaphragms.
Claims (6)
1. LED automobile dipped headlight; Its composition comprises: housing is characterized in that: in the described housing pcb board is housed, described pcb board connects led light source; The Fresnel Lenses group is placed in described led light source the place ahead; Described Fresnel Lenses group has the Fresnel rear lens, and described housing front end has aspherical condenser, between described Fresnel rear lens and described aspherical condenser, diaphragm is housed.
2. LED automobile dipped headlight according to claim 1 is characterized in that: described led light source, described Fresnel Lenses group, described Fresnel rear lens all are contained in the described housing.
3. LED automobile dipped headlight according to claim 1 and 2 is characterized in that: described Fresnel Lenses group comprises one group of Fresnel front lens that is arranged in parallel.
4. LED automobile dipped headlight according to claim 1 and 2; It is characterized in that: described led light source is the luminous angles of 30-80 degree; Described Fresnel front lens model focal length 15mm, size 15 * 15mm, described Fresnel rear lens model focal length 60mm, dimension D=100mm, described pcb board is an aluminium base; The size conic=of described aspherical condenser-0.56, R=30mm, described diaphragm model 15 degree dead line diaphragms.
5. LED automobile dipped headlight according to claim 1 and 2; It is characterized in that: its light path is: led light source is installed on the pcb board of a square dot matrix; Pcb board is placed on the focal position of Fresnel Lenses group, and the light that sends via LED has produced collimated light beam through the corresponding Fresnel Lenses group in its place ahead, and the light beam process Fresnel rear lens focus behind the collimation is on its focus; Produce bigger point source of light; Place diaphragm in the point source of light position, and place the aspherical condenser that focus is identical with Fresnel Lenses, formed a perfect car headlamp dipped beam light type lamp at the diaphragm rear.
6. the preparation method of a LED automobile dipped headlight; It is characterized in that: led light source is welded or be bonded in formation light source dot matrix on the pcb board; It is the coaxial position of focus that the Fresnel Lenses group is connected to the light source; The Fresnel rear lens is placed on the 10mm place, the place ahead of Fresnel Lenses group, diaphragm is placed on the focal position of Fresnel rear lens, at last aspherical condenser is placed in the position that its focus overlaps with diaphragm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210294049.3A CN102767773B (en) | 2012-08-17 | 2012-08-17 | LED automobile dipped headlights and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210294049.3A CN102767773B (en) | 2012-08-17 | 2012-08-17 | LED automobile dipped headlights and preparation method thereof |
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| CN102767773A true CN102767773A (en) | 2012-11-07 |
| CN102767773B CN102767773B (en) | 2016-12-21 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103697389A (en) * | 2013-12-29 | 2014-04-02 | 哈尔滨固泰电子有限责任公司 | Variable-color-temperature automobile lamp |
| CN106969309A (en) * | 2015-11-13 | 2017-07-21 | 福特环球技术公司 | Signals of vehicles and daytime running lamps component with Uniform Illumination |
| CN108461613A (en) * | 2018-05-31 | 2018-08-28 | 深圳市瑞丰光电紫光技术有限公司 | A kind of UV-LED light sources and its lamps and lanterns |
| CN109000201A (en) * | 2018-09-06 | 2018-12-14 | 吉林省长光瑞思激光技术有限公司 | A kind of laser headlight system and vehicle laser headlight |
| CN110067983A (en) * | 2019-06-05 | 2019-07-30 | 华域视觉科技(上海)有限公司 | A kind of car light mould group, car light and vehicle |
| CN114599132A (en) * | 2022-05-09 | 2022-06-07 | 中国工程物理研究院流体物理研究所 | Imaging illumination light source driving pulse generation device and photographic illumination device |
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| CN202691852U (en) * | 2012-08-17 | 2013-01-23 | 哈尔滨固泰电子有限责任公司 | Light emitting diode (LED) car dipped headlight |
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| JPH01159904A (en) * | 1987-12-16 | 1989-06-22 | Ichikoh Ind Ltd | Projector type head light |
| EP0869312A2 (en) * | 1997-04-04 | 1998-10-07 | Britax Vega Limited | Vehicle signal lamp |
| US6220736B1 (en) * | 1997-07-10 | 2001-04-24 | Robert Bosch Gmbh | Headlight for a vehicle |
| FR2799153A1 (en) * | 1999-09-30 | 2001-04-06 | Valeo Vision | Injection-compression molding of elliptical convergent Fresnel lens for use in vehicle headlight, uses mold with poly=optical surface |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103697389A (en) * | 2013-12-29 | 2014-04-02 | 哈尔滨固泰电子有限责任公司 | Variable-color-temperature automobile lamp |
| CN106969309A (en) * | 2015-11-13 | 2017-07-21 | 福特环球技术公司 | Signals of vehicles and daytime running lamps component with Uniform Illumination |
| CN108461613A (en) * | 2018-05-31 | 2018-08-28 | 深圳市瑞丰光电紫光技术有限公司 | A kind of UV-LED light sources and its lamps and lanterns |
| CN109000201A (en) * | 2018-09-06 | 2018-12-14 | 吉林省长光瑞思激光技术有限公司 | A kind of laser headlight system and vehicle laser headlight |
| CN110067983A (en) * | 2019-06-05 | 2019-07-30 | 华域视觉科技(上海)有限公司 | A kind of car light mould group, car light and vehicle |
| CN114599132A (en) * | 2022-05-09 | 2022-06-07 | 中国工程物理研究院流体物理研究所 | Imaging illumination light source driving pulse generation device and photographic illumination device |
| CN114599132B (en) * | 2022-05-09 | 2022-07-29 | 中国工程物理研究院流体物理研究所 | Imaging illumination light source driving pulse generation device and photographic illumination device |
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| CN102767773B (en) | 2016-12-21 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: LED automobile low beam lamp and its manufacturing method Effective date of registration: 20221212 Granted publication date: 20161221 Pledgee: Harbin branch of Postal Savings Bank of China Ltd. Pledgor: HARBIN GOOD TIME ELECTRONIC Co.,Ltd. Registration number: Y2022230000099 |
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