CN202518157U - Automotive anti-glare device - Google Patents
Automotive anti-glare device Download PDFInfo
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- CN202518157U CN202518157U CN2011203531790U CN201120353179U CN202518157U CN 202518157 U CN202518157 U CN 202518157U CN 2011203531790 U CN2011203531790 U CN 2011203531790U CN 201120353179 U CN201120353179 U CN 201120353179U CN 202518157 U CN202518157 U CN 202518157U
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- light valve
- controller
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Abstract
The utility model relates to an automotive anti-glare device which consists of an automobile lamp, a light valve, a photoelectric detector and a controller; and the controller is in control connection with the automobile lamp and the light valve and is in signal connection with the photoelectric detector. The automobile lamp mentioned in the automotive anti-glare device particularly refers to an automotive headlamp. The automotive anti-glare device has the beneficial effect that through detecting an optical intensity signal of the automobile lamp of an opposite oncoming automobile, control signals of light sources and the light valve are adjusted after recognition and judgment to play a better anti-glare role.
Description
Technical field
The utility model relates to a kind of automobile anti-glare method and device, and the car light light source that relates in particular to high-speed switch cooperates the method and apparatus of realizing anti-dazzle synchronously with quick light valve.
Background technology
Automobile is when night running, and night, background was darker relatively, and chaufeur receives the irradiation of oncoming vehicle head lamp; Forceful rays stimulate corresponding photosensitive cell on the driver's eyes retina; Suppress its photosensory cell on every side, made chaufeur not see scenery on every side, produced glare effect.Dazzle not only can make chaufeur produce sense of fatigue, and can injure the vision system of chaufeur, and dazzle meeting that even more serious is causes the chaufeur can't the identification condition of road surface, thereby causes traffic accident.
Prevent that the automobile dazzle from being that people endeavour the difficult problem that solves always; People have proposed many methods for this reason, have the people through sunglasses, polarizer, surface design have color layer (patent No.: 200520102517.8) or the surface glasses (application number: 200910009355.6) reduce the opposite stimulation of strong light to driver's eyes of sending a car of shading graph is arranged; Also someone's light field of designing car light reduces the irradiation (application number: 200610125296.5 and 96109871.6) to opposite vehicle driver's eyes; The video imaging analysis system of somebody's complex design is judged opposite the send a car situation and then the illumination mode (application number: 200810200286.2) of adjustment vehicle head lamp; More the someone proposes direct viewing type anti-dazzle imaging system (application number: 201010242147.3).Above method all has certain effect to preventing the automobile dazzle, but also has defective separately, sees all more difficult practicability from present actual conditions.
In recent years, the huge advance made of two technology was changing the people of the world's life.One is liquid crystal (LCD) development of technology; The contrast ratio of liquid crystal shutter light transmittance increases; The response time of liquid crystal from before tens ms; Drop to below the present 1ms, promoted Liquid Crystal Display (LCD), LCD TV and, replaced traditional CRT technique of display based on the fast development of the three-dimensional display of liquid crystal light valve.Another is to be the development of the solid state lighting technology of representative with light-emitting diode (LED), has not only interspersed color for people's life, and can energy savings.Development along with the solid state lighting technology; LED has also obtained number of applications on automobile; Interior trim lamp, stoplight stop lamp and the clearance light of some automobile adopted the LED technology; Also the head lamp of some high-end expensive automobile has also been introduced LED technology, and to adopt LED be the mainstream technology that the car headlamp of light source has become development of automobile.
A significant advantage of led light source is that the LED switching speed is very fast, much smaller than the ms magnitude.Therefore, be LED the head lamp of light source and quick liquid crystal light valve combines, the both uses pulse mode work, and makes quick liquid crystal (LCD) light valve printing opacity and LED luminous synchronous, just can effectively prevent the automobile dazzle.
The utility model content
In view of deficiency of the prior art, the purpose of the utility model is to propose a kind of device that prevents the automobile dazzle.
This new automobile anti-dazzle arrangement is made up of car light, light valve, photodetector and controller, and between controller and car light, the light valve control linkage is arranged respectively, has signal to be connected between controller and the photodetector.The car light of mentioning in the utility model refers in particular to the head lamp of automobile.
The light source of said car light is for being the quick light source of representative with the LED, and response time is less than 5ms.
Said light valve is for being the quick light valve of representative with transmission-type liquid crystal LCD, and response time is less than 5ms.
Said controller is respectively to the quick light source of car light and the synchronous pulse control signal of light valve output, even quick light valve printing opacity during the quick light source luminescent of car light, quick light valve was not light tight when the quick light source of car light was luminous.
The time that the cycle of said pulse control signal persists less than human eye vision, about 41ms.
The dutycycle and the car light led light source drive current of the pulse control signal through regulating the output of said controller can access preferable anti-dazzle effect.
Photodetector is surveyed the wigwag of sending a car in the opposite, and sends controller to, and the lamp light mode that controller is sent a car to the opposite is discerned judgement.
The lamp light mode of sending a car in the opposite that controller is judged according to identification; Adjustment is to the pulse control signal of car light and light valve output; The adjustment mode is described below: lamp light mode is luminous for continuously if send a car in the opposite; Then the control signal of led light source and the LCD light valve light intensity adjustment dutycycle of sending a car according to the opposite and the electric current of led light source keep the basic unmodified while of this car car light irradiation the place ahead scenery light, effectively prevent the dazzle of sending a car in the opposite; Lamp light mode is the pulsed illumination mode if send a car in the opposite; And intensity of light surpasses a light intensity threshold value, then after n pulse period, is adjusted into led light source and LCD light valve pulse control signal and opposite car lamp pulse signal inversion; Be that the opposite car light is when opening; This car led light source and LCD light valve close, and when the opposite car light closed, this car led light source and LCD light valve were opened.
Have control linkage or signal to be connected respectively between said controller and car light, light valve and the photodetector, control linkage still be signal connect all be in wired connection mode and the wireless connections mode any one.
The head lamp of automobile (comprising: country beam and passing light) adopts quick light source (is representative with the LED), and the switching response speed of this quick light source is less than 5ms; Place a quick light valve (is representative with the quick LCD light valve of transmission-type) in automobile driver eyes the place ahead, this light valve be through electric signal control printing opacity and with the light proof switch, the switching response speed of this light valve is less than 5ms; And place a photodetector in automobile driver eyes the place ahead, be used to survey the car light state of sending a car on the opposite; A controller is arranged; One side receives the signal from photodetector, on the other hand quick light source and quick light valve is controlled, and this controller provides pulse electrical signal to the quick light source of car light with quick light valve respectively; Control the switch of quick light source and quick light valve; And make the quick light source and the quick synchronous (see figure 2) of switch of light valve, even quick light valve printing opacity during the quick light source luminescent of car light, quick light valve was not light tight when the quick light source of car light was luminous; The time (being about 41ms) that the cycle T of the pulse electrical signal that controller provides to quick light source and quick light valve respectively persists less than human eye vision, guarantee that this car chaufeur and the other side vehicle driver can be because of the optical flare discomforts.
Below further specify the principle that this method prevents the automobile dazzle.Definition controller output duty of ratio η=t1/T (in the pulse period T, the ratio of light source and light valve ON time t1 and pulse period T), the light transmittance during the light valve conducting is β, then the efficient of this car light light of receiving of this car chaufeur is β.
Be common car light if send a car in the opposite, promptly continuously luminous but not pulsed is luminous, then the opposite that receives of this car driver's eyes light minimizing ratio of sending a car is (1-η β); If dutycycle η is 50%, β is 90%, and then this method can filter out opposite 55% of the light of sending a car through light valve; The dazzle of effectively avoiding the opposite to send a car, if dutycycle η adjusts to 30%, β still is 90%; Then can filter out opposite 77% of the light of sending a car, the dazzle that more can effectively avoid the opposite to send a car through light valve.Certainly, along with reducing of dutycycle, the irradiation brightness of this car car light also can be affected, and needs suitably to increase the light intensity of this car car light when ON state, as far as led light source, suitably increases drive current, to keep enough irradiation brightness.
If sending a car, the opposite also uses according to the utility model design-calculated automobile anti-dazzle arrangement; Be that car light is the luminous work of pulse mode; Then might occur; Overlapping bigger situation of the car light of sending a car in the opening time of this car car light and light valve and opposite and the opening time of light valve, the at this moment light valve of the both sides' vehicle effective filtering opposite high light of sending a car just.The photodetector that is placed in automobile driver eyes the place ahead and links to each other with controller can address this problem well.Photodetector is surveyed the intensity of light of sending a car in the opposite, sends to controller to the signal that detects, and controller is judged opposite the send a car intensity and the pattern of light according to the signal of receiving, comes the car light and the light valve of this car are carried out corresponding control adjustment.Concrete grammar is following:
Set a light intensity threshold value I0.If detect light intensity that the other side sends a car less than threshold value I0, then the control signal of this car car light and light valve remains unchanged.If detect light intensity that the other side sends a car greater than threshold value I0, the control signal of this car car light and light valve temporarily remains unchanged in the individual pulse period at m (m >=1), further judges the send a car mode of operation of light of opposite; If it is luminous continuously; Then the control signal of this car car light and light valve n (n >=m) still remain unchanged after the individual pulse period, but the brightness of dutycycle and light source need adjust according to the light intensity that the other side sends a car, too high such as the opposite light intensity of sending a car; Then the dutycycle of control signal reduces and the increase of led light source received current; Otherwise the light intensity of sending a car is lower, and then the dutycycle of control signal increases and the minimizing of led light source received current; Can guarantee both to have played the effect of anti-dazzle like this, not influence the brightness that this licence is penetrated the place ahead again basically; The mode of operation of light is a pulse operation if send a car in the opposite; Then controller n (n >=m) after the individual pulse period control signal to this car car light and light valve adjust; Make control signal of this car and the signal inversion of sending a car in the opposite; Be the opposite send a car light when bright this car car light and light valve all be in closed condition, and when the opposite send a car light when closing this car car light and light valve all open.Can effectively solve both sides' vehicle like this and all adorn the conflict that produces according to the utility model design-calculated automobile anti-dazzle arrangement.
The speed of response of the matching requirements light source of the automobile anti-dazzle that the utility model proposed is enough fast, just can avoid the generation of glimmering, traditional light source, as: halide torch and xenon lamp, can not meet the demands, the new LED light source then can meet the demands fully.
Description of drawings
Fig. 1 is an automobile anti-dazzle arrangement scheme drawing;
Fig. 2 is the light source of automobile anti-dazzle arrangement and the working state schematic representation of light valve;
The specific embodiment
Fig. 1 is a preferred embodiment of the utility model, and in conjunction with accompanying drawing 1 explanation as follows: the automobile anti-dazzle arrangement is made up of four parts: 1, car light 10, and wherein used light source 11 is a led light source, and switching speed is less than 5ms; 2, light valve 30, are transmission-type liquid crystal LCD light valve, and switching speed should be less than 5ms; 3, controller 20, are used to control car light 10 and light valve 30; 4, photodetector 40.Controller 20 connects 23 through signal and links to each other with photodetector 40; Controller 20 is realized car light 10 and light valve 30 are controlled through control linkage 21 and 22 respectively.
The control signal of 20 pairs of car lights of controller 10 and light valve 30 is as shown in Figure 2; Control signal is the pulse switch mode, and the on off state of the on off state of car light 10 and light valve 30 is synchronous, when promptly car light 10 leaves; Light valve 30 is also opened, and this vehicle driver can see the place ahead road conditions of this car car light irradiation; When car light 10 closed, light valve 30 was also closed, and the light of sending a car in the opposite is blocked by light valve, reduced the visual stimulus of this car chaufeur is produced the dazzle influence.The time that the cycle T of control signal persists less than human eye vision (about 41ms); Through the dutycycle η of regulating control signal, can control the opposite filtration ratio of light of sending a car, and then realize preferable anti-dazzle effect; In the dutycycle η of regulating control signal; In order not influence this car car light irradiation effect, the light intensity of this car car light when ON state also answered corresponding adjustment, such as; Filter more opposites when sending a car light when reducing dutycycle η, increase the drive current of this car car light led light source.
The photodetector 40 detection opposites intensity of light signal of sending a car; Send to controller 20; 20 pairs of signals from photodetector 40 of controller are discerned judgement; After judging the lamp light mode of sending a car on the opposite, according to the said principle of utility model content, the control signal of corresponding this car of adjustment car light 10 and light valve 30.
The foregoing description is merely the technical conceive and the characteristics of explanation the utility model, and its purpose is to let the personage who is familiar with this technology can understand content of the utility model and enforcement according to this, can not limit the protection domain of the utility model with this.All equivalences of being done according to the utility model spirit change or modify, and all should be encompassed within the protection domain of the utility model.
Claims (7)
1. automobile anti-dazzle arrangement, it is characterized in that: said device is made up of car light, light valve, photodetector and controller, and between controller and car light, the light valve control linkage is arranged respectively, has signal to be connected between controller and the photodetector.
2. automobile anti-dazzle arrangement according to claim 1 is characterized in that: the light source of said car light is the quick light source of response time less than 5ms, and said quick light source comprises LED.
3. automobile anti-dazzle arrangement according to claim 1 is characterized in that: said light valve is the quick light valve of response time less than 5ms, and said quick light valve comprises transmission-type liquid crystal LCD.
4. automobile anti-dazzle arrangement according to claim 1; It is characterized in that: said controller is exported synchronous pulse control signal to the quick light source of car light with quick light valve respectively; Quick light valve printing opacity when making the quick light source luminescent of car light, quick light valve was not light tight when the quick light source of car light was luminous.
5. automobile anti-dazzle arrangement according to claim 4 is characterized in that: the time that the cycle of said pulse control signal persists less than human eye vision, be 41ms.
6. automobile anti-dazzle arrangement according to claim 1 is characterized in that: photodetector is surveyed the wigwag of sending a car in the opposite, and sends controller to, and the lamp light mode that controller is sent a car to the opposite is discerned judgement.
7. automobile anti-dazzle arrangement according to claim 1; It is characterized in that: have control linkage or signal to be connected respectively between said controller and car light, light valve and the photodetector, control linkage still be signal connect all be in wired connection mode and the wireless connections mode any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203531790U CN202518157U (en) | 2011-09-20 | 2011-09-20 | Automotive anti-glare device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203531790U CN202518157U (en) | 2011-09-20 | 2011-09-20 | Automotive anti-glare device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202518157U true CN202518157U (en) | 2012-11-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011203531790U Expired - Fee Related CN202518157U (en) | 2011-09-20 | 2011-09-20 | Automotive anti-glare device |
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| CN (1) | CN202518157U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102745124A (en) * | 2012-07-11 | 2012-10-24 | 孙伟 | Device and method for preventing vehicle headlamps from glaring |
| CN104065851A (en) * | 2014-06-27 | 2014-09-24 | 杭州度康科技有限公司 | LED anti-glare lighting device and method for electronic typoscope |
| CN105282935A (en) * | 2015-11-06 | 2016-01-27 | 陈兴华 | Lighting system with mutual interference elimination function |
| CN107688690A (en) * | 2017-07-28 | 2018-02-13 | 陈兴华 | A kind of space of the lighting system for the interference that can mutually disappear and time coupling control method |
| CN108870311A (en) * | 2017-05-11 | 2018-11-23 | 斯坦雷电气株式会社 | Lamp unit, lamp system for vehicle |
-
2011
- 2011-09-20 CN CN2011203531790U patent/CN202518157U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102745124A (en) * | 2012-07-11 | 2012-10-24 | 孙伟 | Device and method for preventing vehicle headlamps from glaring |
| CN104065851A (en) * | 2014-06-27 | 2014-09-24 | 杭州度康科技有限公司 | LED anti-glare lighting device and method for electronic typoscope |
| CN104065851B (en) * | 2014-06-27 | 2017-01-25 | 杭州度康科技有限公司 | LED anti-glare method for electronic typoscope |
| CN105282935A (en) * | 2015-11-06 | 2016-01-27 | 陈兴华 | Lighting system with mutual interference elimination function |
| CN105282935B (en) * | 2015-11-06 | 2018-04-24 | 陈兴华 | A kind of lighting system for the interference that can mutually disappear |
| CN108870311A (en) * | 2017-05-11 | 2018-11-23 | 斯坦雷电气株式会社 | Lamp unit, lamp system for vehicle |
| CN108870311B (en) * | 2017-05-11 | 2021-11-16 | 斯坦雷电气株式会社 | Lamp unit and vehicle lamp system |
| CN107688690A (en) * | 2017-07-28 | 2018-02-13 | 陈兴华 | A kind of space of the lighting system for the interference that can mutually disappear and time coupling control method |
| CN107688690B (en) * | 2017-07-28 | 2020-09-01 | 陈兴华 | Space and time coupling control method of lamplight system capable of mutually eliminating interference |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121107 Termination date: 20160920 |
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| RR01 | Reinstatement of patent right | ||
| RR01 | Reinstatement of patent right |
Former decision: termination of patent right due to unpaid annual fee Former decision publication date: 20171103 |
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| RR01 | Reinstatement of patent right | ||
| RR01 | Reinstatement of patent right |
Former decision: termination of patent right due to unpaid annual fee Former decision publication date: 20171103 |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121107 Termination date: 20200920 |