CN110553212A - Laser high beam module, headlamp and automobile - Google Patents
Laser high beam module, headlamp and automobile Download PDFInfo
- Publication number
- CN110553212A CN110553212A CN201810536872.8A CN201810536872A CN110553212A CN 110553212 A CN110553212 A CN 110553212A CN 201810536872 A CN201810536872 A CN 201810536872A CN 110553212 A CN110553212 A CN 110553212A
- Authority
- CN
- China
- Prior art keywords
- laser
- high beam
- beam module
- laser light
- laser high
- 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.)
- Pending
Links
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
- F21S41/10—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
- F21S41/16—Laser light sources
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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
- F21S45/00—Arrangements within vehicle lighting devices specially adapted for vehicle exteriors, for purposes other than emission or distribution of light
- F21S45/40—Cooling of lighting devices
- F21S45/42—Forced cooling
- F21S45/43—Forced cooling using gas
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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
- F21V23/00—Arrangement of electric circuit elements in or on lighting devices
- F21V23/04—Arrangement of electric circuit elements in or on lighting devices the elements being switches
- F21V23/0442—Arrangement of electric circuit elements in or on lighting devices the elements being switches activated by means of a sensor, e.g. motion or photodetectors
- F21V23/0464—Arrangement of electric circuit elements in or on lighting devices the elements being switches activated by means of a sensor, e.g. motion or photodetectors the sensor sensing the level of ambient illumination, e.g. dawn or dusk sensors
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- 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
- F21W2102/00—Exterior vehicle lighting devices for illuminating purposes
-
- 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
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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
- F21Y2115/30—Semiconductor lasers
Abstract
The application discloses laser high beam module, headlamp and car. The laser high beam module includes: a laser light source for emitting laser light; a reflector for reflecting the laser light emitted from the laser light source; an aperture disposed on the reflector; and a photometric sensor disposed on a rear surface of the reflector, capable of detecting laser light emitted from the laser light source through the hole. The laser high beam module can ensure the safety of the laser high beam module and effectively prevent laser from damaging human eyes.
Description
Technical Field
The invention relates to the field of automobiles, in particular to a laser high beam module, a headlamp with the laser high beam module and an automobile.
Background
Currently, high intensity discharge lamps (xenon/HID) or Light Emitting Diodes (LED) are commonly used as high beam light sources for automotive headlamps. The Laser diode has the advantages of high response speed, low brightness attenuation, small volume, low energy consumption, long service life and the like. This would probably lead to revolutionary changes in the design scale of the individual elements on the front of the car. Laser light source technology is one direction of future vehicle lamp auxiliary light source application. The energy consumption of the laser headlamp is less than 60% of that of the LED headlamp, but the brightness is increased by nearly one time, compared with the LED headlamp, the laser headlamp can irradiate the range of 600 meters ahead, and the vehicle type of the LED headlamp can only irradiate 300 meters.
However, the laser light source system has a certain risk to the human eye when in use: the laser heat effect is high, and proteins can be damaged to damage cells; the retina is injured by strong light in a short time; laser light irradiates eye tissues and photochemical effects damage the human eye. The phosphor plate is damaged causing the laser beam to injure the human eye. In addition, if the laser operating temperature exceeds 80 ̊ C, the performance is degraded dramatically, and it is necessary to ensure heat dissipation and temperature control of the lamp internal system.
Disclosure of Invention
The invention provides a laser high beam module which can be safely lightened and meets the requirements of regulations.
According to an aspect of the present invention, there is provided a laser high beam module, comprising:
A laser light source for emitting laser light;
A reflector for reflecting the laser light emitted from the laser light source;
An aperture disposed on the reflector; and
A photometric sensor disposed on a back side of the reflector capable of detecting laser light emitted from the laser light source through the aperture.
According to the laser high beam module provided by one aspect of the invention, the number of the laser light sources is two.
According to the laser high beam module provided by one aspect of the invention, the number of the holes is two.
According to the laser high beam module provided by one aspect of the invention, the number of the photometric sensors is two.
According to a laser high beam module proposed by an aspect of the present invention, a filter is provided between the photometric sensor and the hole.
According to the laser high beam module provided by one aspect of the invention, the heat sink is arranged around the laser light source.
According to one aspect of the present invention, there is provided a laser high beam module including a fan.
According to one aspect of the present invention, a laser high beam module is provided, which includes a circuit board for supplying power to the laser high beam module, and a thermal sensor is disposed in the circuit board.
The invention provides a headlamp with the laser high beam module. Since the headlight is provided with the laser high beam module according to the present invention, advantages as described above can be obtained.
The invention also relates to a motor vehicle having such a laser high beam module. Since the automobile is provided with the laser high beam module according to the present invention, it is possible to have advantages as described above.
the beneficial effects of the invention include: the safety of the laser high beam module is ensured through monitoring the light quantity and the temperature, and the laser is effectively prevented from harming human eyes. The laser high beam module has compact structure, small volume and convenient design and arrangement, and improves the modeling freedom degree of the automobile headlamp.
Drawings
The disclosure of the present invention is illustrated with reference to the accompanying drawings. It is to be understood that the drawings are designed solely for the purposes of illustration and not as a definition of the limits of the invention. In the drawings, like reference numerals are used to refer to like parts. Wherein:
Fig. 1 schematically shows a laser high beam module according to an embodiment of the present invention;
fig. 2 schematically shows a top view of the laser high beam module of fig. 1.
Detailed Description
It is easily understood that according to the technical solution of the present invention, a person skilled in the art can propose various alternative structures and implementation ways without changing the spirit of the present invention. Therefore, the following detailed description and the accompanying drawings are merely illustrative of the technical aspects of the present invention, and should not be construed as all of the present invention or as limitations or limitations on the technical aspects of the present invention.
In the following description, various parameters and components are described for different configurations of embodiments, and these specific parameters and components are only by way of example and do not limit the embodiments of the present application.
an embodiment according to the present invention is shown in conjunction with fig. 1 and 2. The laser high beam module comprises a heat radiating fin 1, a laser light source 2, a circuit board 3, optical filters 4 and 5, a luminosity sensor 6, a reflector 7 and a fan 8. The reflector is perforated with a hole 9 directly above the laser so that a small amount of light passes through the hole 9 to impinge on the photometric sensor 6.
Blue laser monochromatic light penetrates through the fluorescent sheet to manufacture a white light source, the white light source irradiates towards the front of a vehicle through the reflector, the auxiliary high beam function is realized, and the visible irradiation distance can reach 600 m. When the laser head fluorescent piece is damaged and the like, laser light leaks, the light quantity detected by the photometric sensor above the laser light source exceeds the limit and is fed back to the control system, and the control system can cut off the power of the laser light source to prevent the human eyes from being injured. Meanwhile, when the sampling thermistor NTC signal in the circuit board detects that the laser temperature is too high, the resistance is increased, and the current is reduced.
The light source adopts 2 laser light sources, utilizes the reflective luminescence of top reflector, and the top corresponds two photometric sensor respectively, and the photometric sensor just faces the light source through the trompil on the reflector, detects its most core luminous part, detects whether laser light quantity transfinites, prevents that the light leak from causing laser to the human eye damage, carries out blue light protection. Two optical filters are stuck on the photometric sensor by using a special pasting technology, and light which can be identified by the photometric sensor is filtered out by laser according to the laser spectrum characteristics. For example, the transmittance of the laser passing through the filter for blue light is required to be 2.4-3.2%, the transmittance of the laser passing through the filter for the light with the wavelength of 450nm is required to be 0.8, and the transmittance of the laser passing through other wavelengths is required to be close to 0%. The single circuit board is folded and arranged on the radiating fin, so that the space is saved, and the module is convenient to arrange. The performance of the laser is rapidly attenuated when the working temperature exceeds 80 ̊ C, the heat dissipation of the internal system of the lamp is required to be ensured, and a thermistor is adopted in a circuit to detect the temperature and control the current. And meanwhile, a radiator and a fan are adopted for radiating.
The driving principle of the laser high beam module control system is as follows: the control module drives the laser light source at constant current, the laser light color conversion system is driven and controlled, the laser heat dissipation system is intelligently controlled, laser signals are sampled through the photometric sensor, a protection strategy is implemented on abnormal conditions of the laser system through a software algorithm, and the module gives an alarm and reads and writes on line through LIN communication.
The laser high beam module can safely realize the auxiliary high beam function and obviously increase the long-distance irradiation capability of the car lamp. The triggering conditions of the laser high beam module are as follows: the camera collects and judges whether the ambient light is too dark, whether the vehicle speed exceeds a certain limit (for example, 80 Km/h), whether the luminosity of the laser light source exceeds the standard, and when the three signals pass through simultaneously, the Electronic Control Unit (ECU) activates the laser high beam function of the headlamp.
The laser high beam module provided by the invention is safe and effective to use, and meanwhile, the utilization rate of a laser light source is improved, and the module cost is reduced.
the invention also includes a headlight with a laser high beam module according to one or more of the embodiments described above, which therefore has the technical features and technical effects corresponding to the above description, and which are therefore not described in detail here.
The invention also comprises a motor vehicle with a laser high beam module according to one or more of the embodiments described above, which therefore has the technical features and technical effects corresponding to the above description and therefore will not be described in detail here.
The technical scope of the present invention is not limited to the above description, and those skilled in the art can make various changes and modifications to the above-described embodiments without departing from the technical spirit of the present invention, and such changes and modifications should fall within the protective scope of the present invention.
Claims (10)
1. A laser high beam module, comprising:
A laser light source for emitting laser light;
A reflector for reflecting the laser light emitted from the laser light source;
An aperture disposed on the reflector; and
A photometric sensor disposed on a back side of the reflector capable of detecting laser light emitted from the laser light source through the aperture.
2. The laser high beam module according to claim 1, wherein the number of the laser light sources is two.
3. The laser high beam module according to claim 2, wherein the number of the holes is two.
4. The laser high beam module according to claim 3, wherein the number of photometric sensors is two.
5. the laser high beam module according to claim 1, wherein a filter is disposed between the photometric sensor and the aperture.
6. the laser high beam module according to claim 1, wherein a heat sink is disposed around the laser light source.
7. The laser high beam module according to claim 1, wherein the laser high beam module comprises a fan.
8. The laser high beam module according to claim 1, wherein the laser high beam module comprises a circuit board for supplying power to the laser high beam module, and a thermistor is disposed in the circuit board.
9. A headlamp characterized in that it comprises a laser high beam module according to any one of claims 1 to 8.
10. An automobile, characterized in that it comprises a laser high beam module according to any one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810536872.8A CN110553212A (en) | 2018-05-30 | 2018-05-30 | Laser high beam module, headlamp and automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810536872.8A CN110553212A (en) | 2018-05-30 | 2018-05-30 | Laser high beam module, headlamp and automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110553212A true CN110553212A (en) | 2019-12-10 |
Family
ID=68735149
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810536872.8A Pending CN110553212A (en) | 2018-05-30 | 2018-05-30 | Laser high beam module, headlamp and automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110553212A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201155712Y (en) * | 2007-11-07 | 2008-11-26 | 芜湖罗比汽车照明系统有限公司 | Automobile double function projection front lamp |
| CN104245423A (en) * | 2011-12-29 | 2014-12-24 | 齐扎拉光系统有限责任公司 | Safety device for headlights with laser light sources and method for shutting down laser light sources in case of safety-critical conditions |
| CN106104143A (en) * | 2014-03-03 | 2016-11-09 | 株式会社小糸制作所 | Lamps apparatus for vehicle and the control system of lamps apparatus for vehicle |
| CN107228323A (en) * | 2017-05-19 | 2017-10-03 | 上海小糸车灯有限公司 | A kind of headlight for vehicles and its laser assisted distance light module and laser safety detection means |
-
2018
- 2018-05-30 CN CN201810536872.8A patent/CN110553212A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201155712Y (en) * | 2007-11-07 | 2008-11-26 | 芜湖罗比汽车照明系统有限公司 | Automobile double function projection front lamp |
| CN104245423A (en) * | 2011-12-29 | 2014-12-24 | 齐扎拉光系统有限责任公司 | Safety device for headlights with laser light sources and method for shutting down laser light sources in case of safety-critical conditions |
| CN106104143A (en) * | 2014-03-03 | 2016-11-09 | 株式会社小糸制作所 | Lamps apparatus for vehicle and the control system of lamps apparatus for vehicle |
| CN107228323A (en) * | 2017-05-19 | 2017-10-03 | 上海小糸车灯有限公司 | A kind of headlight for vehicles and its laser assisted distance light module and laser safety detection means |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
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Application publication date: 20191210 |