CN101249815A - LED illuminating source automobile headlamp - Google Patents
LED illuminating source automobile headlamp Download PDFInfo
- Publication number
- CN101249815A CN101249815A CNA2008100246218A CN200810024621A CN101249815A CN 101249815 A CN101249815 A CN 101249815A CN A2008100246218 A CNA2008100246218 A CN A2008100246218A CN 200810024621 A CN200810024621 A CN 200810024621A CN 101249815 A CN101249815 A CN 101249815A
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- CN
- China
- Prior art keywords
- lens
- led illuminating
- light source
- illuminating source
- catadioptre
- Prior art date
- Legal status (The legal status 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 status listed.)
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Classifications
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- 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
- F21S41/60—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution
- F21S41/63—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on refractors, filters or transparent cover plates
- F21S41/64—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on refractors, filters or transparent cover plates by changing their light transmissivity, e.g. by liquid crystal or electrochromic devices
- F21S41/645—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on refractors, filters or transparent cover plates by changing their light transmissivity, e.g. by liquid crystal or electrochromic devices by electro-optic means, e.g. liquid crystal or electrochromic devices
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- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
The invention relates to a car headlight with LED illuminating source, which comprises an LED illuminating source (4), a reflecting mirror (5) and a convex lens (1), a second lens (3) fixedly connected with the reflecting mirror (5) is disposed straight ahead the LED illuminating source (4), the reflecting mirror (5) is an ellipsoid, the LED illuminating source is fixed in one focus of the ellipsoid, the other focus of the ellipsoid and a focus of the second lens (3) are in superposition, an LCD light valve (2) is arranged in front of the LED illuminating source, the LCD light valve (2) is mounted between the convex lens (1) and the second lens (3) and fixed on the reflecting mirror (5), the LCD light valve (2) is connected with the power source by a wire, and the reflecting mirror (5), the convex lens (1) and the second lens (3) form a reflecting and refracting system. The car headlight with LED illuminating source has convenient upper beam and low beam alternation, and the advantages of uniform luminance, strong penetration, less dispersed light and the like.
Description
Technical field
The present invention relates to a kind of led light source car headlamp, belong to the car light field.
Background technology
What traditional car headlamp adopted is filament lamp, and halide torch, discharge lamp etc. are as light source, and when lighting, the temperature in the lamp chamber is very high, approximately to 130 ℃～160 ℃, so the resistant to elevated temperatures metallic material of the general selection of dipped beam baffle plate.The shortcoming of this head lamp is that the light source volume is big, be not easy to the layout and the design of various device, and power consumption is also bigger.The led light source cal val is low, non-thermal radiation, and cold light source, and also the LED component size is very little, is convenient to the layout and the design of various device more.LCD light valve non-refractory, maximum operating temperature are about 70 ℃.Do baffle plate if adopt metallic material, generally just require two systems of dipped beam distance light, if require far and near light in same system, will use the electromechanics flap shutter, this just needs the space in lamp chamber relatively large, and motor rotates this mechanical system aseismicity and can not guarantee that in addition, metal baffle also can produce electromagnetic interference.
Summary of the invention
It is little to the purpose of this invention is to provide a kind of light source volume, the led light source car headlamp of distance light, dipped beam easy switching.
The technical scheme that realizes above-mentioned purpose is: a kind of led light source car headlamp, comprise led light source, catadioptre and convex lens, be provided with second lens of captiveing joint with catadioptre in the led light source dead ahead, catadioptre is an ellipsoid surface, led light source is fixed on the focus of this ellipsoid surface, another focus of this ellipsoid surface overlaps with the focus of second lens, in led light source the place ahead the LCD light valve is installed also, this LCD light valve is between the convex lens and second lens and be fixed on the catadioptre, and the LCD light valve is connected with power supply by lead, catadioptre, the convex lens and second lens are formed reflection, dioptric system.
After adopting technique scheme, the LED component size is very little, is convenient to the layout and the design of various device more, and simultaneously, the led light source cal val is low, and non-thermal radiation makes drop in temperature to 40～70 ℃ in the lamp chamber, is convenient to adopt the LCD light valve of non-refractory.When the control circuit of LCD light valve was open circuited, the LCD light valve was light tight, and this just is equivalent to a baffle plate, and light penetrates from light source, through catadioptre, second lens, and baffle plate, convex lens are met the dipped beam light shape of national requirements GB4599.When LCD light valve control circuit switch closed, LCD light valve printing opacity was equivalent to remove baffle plate, can be met the distance light light shape of national requirements GB4599.
The present invention is by being provided with second lens of captiveing joint with catadioptre in the led light source dead ahead, add original convex lens, make the light shape standard more of lamp holder, tangible light and shade line of cut can be arranged, solved astigmatic problem, the present invention is compared with the automobile front of traditional lamp holder, have that brightness is even, bite is strong and the light advantage such as little of scattering and disappearing.
By adopting led light source to make advantages such as the present invention also has safety and environmental protection, vibration resistance, response is fast, the life-span is long.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is schematic circuit diagram of the present invention.
The specific embodiment
The present invention is further detailed explanation below in conjunction with drawings and Examples.
As Fig. 1, shown in 2, a kind of led light source car headlamp, comprise led light source 4, catadioptre 5 and convex lens 1, be provided with second lens 3 of captiveing joint with catadioptre 5 in led light source 4 dead aheads, catadioptre 5 is ellipsoid surfaces, led light source 4 is fixed on the focus of this ellipsoid surface, another focus of this ellipsoid surface overlaps with the focus of second lens 3, in led light source the place ahead LCD light valve 2 is installed also, this LCD light valve 2 is between the convex lens 1 and second lens 3 and be fixed on the catadioptre 5, and LCD light valve 2 is connected with power supply by lead, catadioptre 5, the convex lens 1 and second lens 3 are formed reflection, dioptric system.
Principle of work of the present invention is as follows: when the control circuit of LCD light valve 2 was open circuited, LCD light valve 2 was light tight, and this just is equivalent to a baffle plate, light penetrates from light source, through catadioptre 5, the second lens 3, baffle plate, convex lens 1 are met the dipped beam light shape of national requirements GB4599.When LCD light valve control circuit switch closed, LCD light valve 2 printing opacities were equivalent to remove baffle plate, can be met the distance light light shape of national requirements GB4599.
Claims (1)
1, a kind of led light source car headlamp, comprise led light source (4), catadioptre (5) and convex lens (1), it is characterized in that: be provided with second lens (3) of captiveing joint in led light source (4) dead ahead with catadioptre (5), catadioptre (5) is an ellipsoid surface, led light source (4) is fixed on the focus of this ellipsoid surface, another focus of this ellipsoid surface overlaps with the focus of second lens (3), LCD light valve (2) also is installed in led light source the place ahead, this LCD light valve (2) is positioned between convex lens (1) and second lens (3) and is fixed on the catadioptre (5), and LCD light valve (2) is connected with power supply by lead, catadioptre (5), convex lens (1) and second lens (3) are formed reflection, dioptric system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100246218A CN101249815A (en) | 2008-03-28 | 2008-03-28 | LED illuminating source automobile headlamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100246218A CN101249815A (en) | 2008-03-28 | 2008-03-28 | LED illuminating source automobile headlamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101249815A true CN101249815A (en) | 2008-08-27 |
Family
ID=39953463
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008100246218A Pending CN101249815A (en) | 2008-03-28 | 2008-03-28 | LED illuminating source automobile headlamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101249815A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101830193A (en) * | 2010-04-19 | 2010-09-15 | 范桦 | Intelligent car light device capable imaging on road surface |
| CN101893196A (en) * | 2010-06-24 | 2010-11-24 | 浙江龙鼎车业有限公司 | Automobile headlight |
| CN103867982A (en) * | 2012-12-12 | 2014-06-18 | 黑拉许克联合股份有限公司 | Light module for headlight of vehicle |
| CN106152000A (en) * | 2015-03-25 | 2016-11-23 | 常州星宇车灯股份有限公司 | Automobile long-and-short distant light module based on laser technology |
| CN106555959A (en) * | 2015-09-18 | 2017-04-05 | 堤维西交通工业股份有限公司 | Double lens distance lamp switching car light |
| CN106152003B (en) * | 2015-03-30 | 2018-06-15 | 常州星宇车灯股份有限公司 | Distance-light one headlamp and its means of illumination based on laser light source |
| CN109519899A (en) * | 2018-12-26 | 2019-03-26 | 国网河北省电力有限公司安平县供电分公司 | A kind of lamp with sieve tabula rasa of electric operating |
-
2008
- 2008-03-28 CN CNA2008100246218A patent/CN101249815A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101830193A (en) * | 2010-04-19 | 2010-09-15 | 范桦 | Intelligent car light device capable imaging on road surface |
| CN101830193B (en) * | 2010-04-19 | 2012-12-19 | 范桦 | Intelligent car light device capable imaging on road surface |
| CN101893196A (en) * | 2010-06-24 | 2010-11-24 | 浙江龙鼎车业有限公司 | Automobile headlight |
| CN101893196B (en) * | 2010-06-24 | 2012-07-25 | 浙江龙鼎车业有限公司 | Automobile headlight |
| CN103867982A (en) * | 2012-12-12 | 2014-06-18 | 黑拉许克联合股份有限公司 | Light module for headlight of vehicle |
| CN106152000A (en) * | 2015-03-25 | 2016-11-23 | 常州星宇车灯股份有限公司 | Automobile long-and-short distant light module based on laser technology |
| CN106152000B (en) * | 2015-03-25 | 2018-06-15 | 常州星宇车灯股份有限公司 | Automobile long-and-short distant light module based on laser technology |
| CN106152003B (en) * | 2015-03-30 | 2018-06-15 | 常州星宇车灯股份有限公司 | Distance-light one headlamp and its means of illumination based on laser light source |
| CN106555959A (en) * | 2015-09-18 | 2017-04-05 | 堤维西交通工业股份有限公司 | Double lens distance lamp switching car light |
| CN109519899A (en) * | 2018-12-26 | 2019-03-26 | 国网河北省电力有限公司安平县供电分公司 | A kind of lamp with sieve tabula rasa of electric operating |
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Legal Events
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Open date: 20080827 |