CN106838754B - Vehicle lamp lighting system and driving method thereof - Google Patents
Vehicle lamp lighting system and driving method thereof Download PDFInfo
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- CN106838754B CN106838754B CN201510881671.8A CN201510881671A CN106838754B CN 106838754 B CN106838754 B CN 106838754B CN 201510881671 A CN201510881671 A CN 201510881671A CN 106838754 B CN106838754 B CN 106838754B
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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
- F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
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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
- F21V14/00—Controlling the distribution of the light emitted by adjustment of elements
- F21V14/006—Controlling the distribution of the light emitted by adjustment of elements by means of optical elements, e.g. films, filters or screens, being rolled up around a roller
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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
- F21V7/22—Reflectors for light sources characterised by materials, surface treatments or coatings, e.g. dichroic reflectors
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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
- F21V9/00—Elements for modifying spectral properties, polarisation or intensity of the light emitted, e.g. filters
- F21V9/08—Elements for modifying spectral properties, polarisation or intensity of the light emitted, e.g. filters for producing coloured light, e.g. monochromatic; for reducing intensity of light
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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
- 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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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
- Lighting Device Outwards From Vehicle And Optical Signal (AREA)
Abstract
The invention provides a car light lighting system and a driving method thereof, comprising a laser, a diaphragm device and a fluorescent device; the laser is used for emitting exciting light; the diaphragm device comprises a diaphragm and a driving component, the diaphragm comprises an opaque area and a plurality of light transmission areas with different shapes, and the driving component switches the corresponding light transmission area of the diaphragm to the emergent light path of the exciting light according to the illumination requirement of a driver so as to shape the beam section of the exciting light into the corresponding shape through the light transmission area; the fluorescent powder on the fluorescent device generates fluorescent light with a corresponding shape under the irradiation of the shaped exciting light, and the fluorescent light is used for forming white light for illumination with a corresponding shape. The car lamp lighting system is easy to implement and low in cost.
Description
Technical Field
The invention relates to the technical field of optics, in particular to a car lamp lighting system and a driving method thereof.
Background
Compared with the traditional light source, the laser light source has obvious advantages in the aspects of lighting effect, energy conservation, volume and the like, so the laser light source has gradually replaced the traditional light source and is applied to the field of automobile lighting. In the conventional vehicle lamp lighting system using a laser light source, excitation light emitted by a laser is generally used to excite a phosphor to generate fluorescence, and then the fluorescence is used to form white light for lighting.
Because the driver drives the different lighting modes that the car light need be opened when the automobile goes in different occasions, for example passing lamp, high beam and fog light lighting mode etc. and passing lamp illumination pattern needs certain light and shade boundary, and can not bring the vision discomfort for the car driver who drives to the opposite side, the high beam illumination needs longer irradiation distance and light beam collimation nature, consequently, car light lighting system need control the car light and produce different illumination patterns, satisfy the illumination demand of driver in different occasions.
The existing vehicle lamp lighting system comprises a plurality of lasers to form a laser array, and the lasers arranged in a specific pattern are controlled to be simultaneously turned on to realize the specific lighting pattern. Another gas lamp lighting system includes a plurality of light guides with specific cross-sections, each light guide has a corresponding laser, and the corresponding light guide is controlled to emit a specific lighting pattern by controlling the on-state of the corresponding laser, and the system is also expensive. The other vehicle lamp lighting system comprises a plurality of fluorescent powder devices in different shapes, and the specific lighting pattern is realized by controlling the laser to irradiate different fluorescent powder devices.
Disclosure of Invention
In view of this, the present invention provides a vehicle lamp lighting system and a driving method thereof, so as to solve the problem in the prior art that the vehicle lamp lighting system capable of freely switching the vehicle lamp on different occasions has high cost.
In order to achieve the purpose, the invention provides the following technical scheme:
a car light lighting system comprises a laser, a diaphragm device and a fluorescent device;
the laser is used for emitting exciting light;
the diaphragm device comprises a diaphragm and a driving component, the diaphragm comprises an opaque area and a plurality of light transmission areas with different shapes, and the driving component switches the corresponding light transmission area of the diaphragm to the emergent light path of the exciting light according to the illumination requirement of a driver so as to shape the beam section of the exciting light into the corresponding shape through the light transmission area;
the fluorescent powder on the fluorescent device generates fluorescent light with a corresponding shape under the irradiation of the shaped exciting light, and the fluorescent light is used for forming white light for illumination with a corresponding shape.
Preferably, the diaphragm is of a circular flat plate-shaped structure, and the driving assembly drives the diaphragm to rotate around the central shaft to realize the switching of the light transmission areas with different shapes;
or the diaphragm is of a square flat plate structure, and the driving assembly drives the diaphragm to translate to realize the switching of the light transmission areas in different shapes.
Preferably, when the diaphragm is of a circular flat plate-shaped structure, the driving assembly is a stepping motor; when the diaphragm is of a square flat plate structure, the driving component is a sliding rail or shape memory alloy.
Preferably, a first lens is arranged between the laser and the diaphragm device, a second lens is arranged between the diaphragm device and the fluorescent device, and the first lens and the second lens are used for collimating light.
Preferably, the fluorescent device comprises fluorescent powder and a substrate, wherein the fluorescent powder is arranged on the substrate, and the substrate is used for supporting the fluorescent powder and dissipating heat of the fluorescent powder.
Preferably, the vehicle lamp lighting system further comprises a reflector cup disposed above the fluorescent device, the reflector cup being configured to transmit the excitation light to reflect the fluorescent light generated by the fluorescent device and the unabsorbed excitation light, so that the fluorescent light and the unabsorbed excitation light exit in parallel, wherein the fluorescent powder is located at a focus of the reflector cup.
Preferably, the excitation light is blue light, and the fluorescence is yellow light; alternatively, the excitation light is ultraviolet light, and the fluorescence light and the blue light and the yellow light are emitted.
Preferably, when the excitation light is blue light, a through hole is formed in a region of the reflection cup corresponding to the incident position of the blue light, so that the blue light is incident into the reflection cup through the through hole.
Preferably, when the excitation light is ultraviolet light, the reflecting cup is made of a material which transmits ultraviolet light and reflects visible light.
A driving method of a vehicular lamp illumination system applied to the vehicular lamp illumination system as described in any one of the above, the driving method comprising:
receiving a lighting demand instruction input by a driver;
and switching the corresponding light transmission area of the diaphragm to an emergent light path of exciting light according to the illumination requirement instruction, so that the light transmission area shapes the light beam section of the exciting light into a corresponding shape, and the shaped exciting light excites the fluorescence to form the white light for illumination with a corresponding shape.
Compared with the prior art, the technical scheme provided by the invention has the following advantages:
the invention provides a car lamp lighting system and a driving method thereof, which can obtain lighting patterns suitable for lighting modes such as low beam or high beam by switching the light transmitting areas with different shapes on the diaphragm to the emergent light path of the exciting light through the driving assembly and shaping the beam section of the exciting light into corresponding shapes through the light transmitting areas.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a vehicle lamp lighting system according to an embodiment of the present invention;
FIG. 2 is a schematic plan view of an aperture according to an embodiment of the present invention;
FIG. 3 is a schematic plan view of another diaphragm provided in accordance with an embodiment of the present invention;
FIG. 4 is a schematic view of a low beam illumination pattern provided by one embodiment of the present invention;
FIG. 5 is a schematic plan view of another diaphragm provided in an embodiment of the present invention;
fig. 6 is a flowchart of a driving method of a vehicle lamp lighting system according to another embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
One embodiment of the present invention provides a vehicle lamp illumination system which is an adaptive laser light source illumination system suitable for automobile illumination, and referring to fig. 1, the vehicle lamp illumination system includes a laser 1, a diaphragm device 2, and a fluorescent device 3.
Of course, in the present embodiment, the lighting system of the vehicle lamp may further include a first lens 4 between the laser 1 and the diaphragm device 2, a second lens 5 between the diaphragm device 2 and the fluorescent device 3, and a reflector cup 6 disposed above the phosphor plate 3. The first lens 4 and the second lens 5 are used for collimating light. The reflector cup 6 is used for transmitting the excitation light emitted by the laser 1, reflecting the fluorescence generated by the fluorescence device 3 and reflecting the unabsorbed excitation light, so that the fluorescence and the unabsorbed excitation light are emitted in parallel.
In this embodiment, the laser 1 is used to emit excitation light, which may be blue laser light or ultraviolet light. When the excitation light is blue light, a through hole is formed in a region of the reflection cup 6 corresponding to the incident position of the blue light, that is, the blue light is transmitted to the fluorescent powder of the fluorescent device 3 inside the reflection cup 6 through the through hole, the fluorescent powder on the fluorescent device 3 is yellow fluorescent powder, and the yellow light excited by the yellow fluorescent powder and the unabsorbed blue light are mixed to form white light for illumination. When the excitation light is ultraviolet light, the reflecting cup 6 is made of a material which transmits ultraviolet light and reflects visible light, that is, the ultraviolet light can penetrate through the reflecting cup 6 and irradiate on the fluorescent powder of the fluorescent device 3 in the reflecting cup 6, at the moment, the fluorescent powder on the fluorescent device 3 is mixed powder of blue fluorescent powder and yellow fluorescent powder, and yellow light and blue light excited by the mixed powder are mixed to form white light for illumination. Of course, the phosphor is not limited to yellow phosphor, and may be phosphor of red, green, or the like, as long as the mixed light that can be excited to exit is white light. In addition, the reflecting plate can be made of materials of reflecting films in other areas, wherein exciting light is incident to the area corresponding to the reflecting cup of the reflecting cup to transmit the exciting light. The transmitted excitation light may be made of a light-transmitting material or may be a through hole, which is not limited herein.
The diaphragm arrangement 2 comprises a diaphragm 20 and a drive assembly 21. Referring to fig. 2, fig. 2 is a schematic plan view of the diaphragm 20. The diaphragm 20 is a circular flat structure, and the driving assembly 21 drives the diaphragm 20 to rotate around the central axis to realize the switching of the light-transmitting areas with different shapes. The diaphragm 20 includes an opaque region 20a and a plurality of differently shaped light transmissive regions including an L-shaped light transmissive region 20b and a square-shaped light transmissive region 20 c. Therefore, the beam cross section of the excitation light transmitted through the light-transmitting region 20b is shaped into an L shape suitable for a low beam lamp, and the beam cross section of the excitation light transmitted through the light-transmitting region 20c is shaped into a square shape suitable for a high beam lamp. Of course, in other embodiments, the diaphragm 20 may also include other shapes of light-transmitting regions, as shown in fig. 3, the light-transmitting region 20b suitable for low beam may also be triangular, and the light-transmitting region 20c suitable for high beam may also be regular polygon or circle, etc., and the invention is not limited thereto.
In the present embodiment, the excitation light passes through the light-transmitting region 20b of the diaphragm 20 to generate the illumination pattern of the low beam, as shown in fig. 4, so that the driver of the vehicle driving from the left front can be protected from the lamp illumination in the countries where the vehicle is driving from the right, such as china and the united states, and the driving safety can be improved. In the case of using a high beam, since the vehicle lamp generally has no specific illumination pattern limitation, the excitation light in this embodiment can pass through the square light-transmitting area 20c on the stop 20 to form high beam illumination.
Because the light-transmitting areas 20b and 20c can allow the excitation light to transmit, the light-transmitting area 20a can reflect or absorb the excitation light, and the light-transmitting area 20a can lose part of the excitation light incident on the diaphragm 20 due to reflection or absorption of the excitation light, the shape of the light-transmitting area can be designed to be only slightly smaller than the beam cross section of the excitation light incident on the diaphragm 20, so that the beam cross section of the excitation light can be ensured to be shaped into a beam cross section with a specific shape, and the light efficiency of the excitation light can be ensured not to be greatly weakened.
In the present embodiment, the driving mode of the diaphragm 20 is a rotary type, and in this case, the driving assembly 21 may be a stepping motor. Specifically, the driving component 21 is located in the opaque region 20a of the diaphragm 20 with a flat plate-shaped structure, and referring to fig. 2, the driving component 21 switches the corresponding transparent region of the diaphragm 20 to the outgoing light path of the excitation light according to the lighting requirement of the driver, so as to shape the beam cross section of the excitation light into a corresponding shape through the transparent region.
For example, when the driver needs to turn on the low beam, the driving assembly 21 rotates the light transmitting area 20b to the optical path of the excitation light by driving the diaphragm 20 to rotate around the central axis, so that the light transmitting area 20b shapes the beam section of the excitation light into an illumination pattern suitable for the low beam; when the driver needs to turn on the high beam, the driving assembly 21 rotates the light-transmitting area 20c to the light path of the excitation light, so that the light-transmitting area 20c shapes the beam section of the excitation light into an illumination pattern suitable for the high beam.
Of course, the present invention is not limited to this, in other embodiments, as shown in fig. 5, the diaphragm 20 may also be a square flat plate structure, and the driving component 21 may realize the switching of different light transmission areas by driving the diaphragm 20 to move up and down, in which case, the driving component 21 may be a slide rail or a shape memory alloy, etc.
In this embodiment, the phosphor device 3 includes a phosphor 30 and a substrate 31. The phosphor 30 is disposed on the substrate 31, the phosphor 30 generates fluorescence of a corresponding shape under the irradiation of the shaped excitation light, and the fluorescence and the excitation light not absorbed by the phosphor are mixed to form white light for illumination. The substrate 31 is used for supporting the phosphor 30 and dissipating heat from the phosphor 30. Under the excitation of the excitation light, the temperature of the phosphor 30 is easily too high to generate heat quenching, and the heat quenching reduces the lifetime of the phosphor 30, so the substrate 31 in this embodiment needs to have a good heat conduction and dissipation effect to control the temperature of the phosphor 30 not to exceed a critical value.
In this embodiment, blue light excitation light emitted by the blue laser 1 is incident on the diaphragm 20 after passing through the first lens 4, and according to the difference in the shape of the light-transmitting area of the diaphragm 20, the beam cross section of the excitation light can be shaped into a corresponding shape, and then the shaped excitation light beam is incident on the phosphor 30 located on the substrate 31 after passing through the second lens 5, so that the phosphor 30 is excited to generate yellow fluorescence. Since the absorption rate of the phosphor 30 to the excitation light is not 100%, some excitation light cannot be absorbed by the phosphor 30, but is scattered by the phosphor 30 and then emitted from the surface of the phosphor 30 together with the fluorescence, and this part of excitation light occupies about 10% -15% of the total energy of the excitation light, and then the yellow fluorescence and the blue excitation light which is not absorbed by the phosphor 30 are mixed to form white light for illumination, and the white light is incident to the reflector cup 6, and since the phosphor 30 is disposed at the focus of the reflector cup 6, the reflector cup 6 can reflect the white light in a parallel light manner.
Because the fluorescent light is incoherent light, part of exciting light which is not absorbed by the fluorescent powder is greatly eliminated after being scattered by the surface of the fluorescent powder 30, so that the speckle effect of the finally emergent white light can be effectively reduced, and the lighting effect and the visual safety of the automobile lamp are improved.
The car light lighting system that this embodiment provided switches the light zone of different shapes on the diaphragm to the outgoing light path of exciting light through drive assembly, and the light beam cross-section of exciting light is reshaped into corresponding shape through the light zone, obtains the illumination pattern that is applicable to illumination modes such as low beam or distance beam, and this kind of car light lighting system is easy to carry out, and the cost is lower.
Another embodiment of the present invention further provides a driving method for a vehicle lamp lighting system, which is applied to the vehicle lamp lighting system disclosed in any of the above embodiments, and a flowchart of the driving method is shown in fig. 6, and includes:
s601: receiving a lighting demand instruction input by a driver;
when the driver needs to turn on the low beam light, the driver inputs a corresponding low beam lighting demand instruction to the driving assembly 21, so that the driving assembly 21 rotates the light transmission area 20b on the diaphragm 20 to the light path of the exciting light to form a corresponding low beam lighting pattern; when the driver needs to turn on the high beam, the driver inputs a corresponding high beam illumination demand instruction to the driving assembly 21, so that the driving assembly 21 rotates the light transmission area 20c on the diaphragm 20 to the light path of the excitation light to form a corresponding high beam illumination pattern. Specifically, the driver may input the lighting demand instruction by dialing the operation lever or pressing a key.
S602: and switching the corresponding light transmission area of the diaphragm to an emergent light path of exciting light according to the illumination requirement instruction, so that the light transmission area shapes the light beam section of the exciting light into a corresponding shape, and the shaped exciting light excites the fluorescence to form the white light for illumination with a corresponding shape.
After a driver inputs an illumination demand instruction, the driving assembly 21 switches the corresponding light transmitting area of the diaphragm 20 to an emitting light path of the excitation light according to the illumination demand instruction, so that the light transmitting area shapes the light beam cross section of the excitation light into a corresponding shape, and the white light for illumination in a corresponding shape is formed by fluorescence excited by the shaped excitation light.
For example, the driving component 21 switches the light-transmitting area 20b on the diaphragm 20 to the emitting light path of the excitation light according to the low beam illumination requirement instruction, the light-transmitting area 20b shapes the light beam cross section of the excitation light into an L shape, when the excitation light with the shaped light beam cross section of the L shape is irradiated onto the phosphor 30, the fluorescence is excited and the emitted fluorescence forms an L-shaped illumination pattern, and the yellow fluorescence and the unabsorbed blue excitation light are mixed to form white light for illumination with a corresponding shape.
In the driving method of the vehicle lamp illumination system provided by the embodiment, the light transmission areas with different shapes on the diaphragm are switched to the emergent light path of the excitation light through the driving assembly, and the beam cross section of the excitation light is shaped into a corresponding shape through the light transmission areas, so that the illumination pattern suitable for the illumination modes such as low beam or high beam is obtained.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (9)
1. A car light lighting system is characterized by comprising a laser, a diaphragm device, a fluorescent device and a reflecting cup;
the laser is used for emitting exciting light;
the diaphragm device is arranged between the laser and the light reflecting cup, the diaphragm device comprises a diaphragm and a driving assembly, the diaphragm comprises an opaque area and a plurality of light transmitting areas with different shapes, and the driving assembly switches the corresponding light transmitting area of the diaphragm to an emergent light path of the exciting light according to the illumination requirement of a driver so as to shape the beam section of the exciting light into a corresponding shape through the light transmitting areas when the exciting light passes through the light transmitting areas;
the fluorescent powder on the fluorescent device generates fluorescent light with a corresponding shape under the irradiation of the shaped exciting light, and forms white light for illumination with a corresponding shape through the fluorescent light;
the reflecting cup is arranged above the fluorescent device and used for transmitting the exciting light to reflect the fluorescent light generated by the fluorescent device and the unabsorbed exciting light so as to enable the fluorescent light and the unabsorbed exciting light to be emitted in parallel, wherein the fluorescent powder is located at the focus of the reflecting cup.
2. The illumination system of claim 1, wherein the diaphragm is a circular flat structure, and the driving assembly drives the diaphragm to rotate around a central axis to realize the switching of the light-transmitting areas with different shapes;
or the diaphragm is of a square flat plate structure, and the driving assembly drives the diaphragm to translate to realize the switching of the light transmission areas in different shapes.
3. The illumination system of claim 2, wherein when the diaphragm is a circular plate-like structure, the driving assembly is a stepping motor; when the diaphragm is of a square flat plate structure, the driving component is a sliding rail or shape memory alloy.
4. The illumination system of claim 1, wherein a first lens is disposed between the laser and the aperture device, and a second lens is disposed between the aperture device and the phosphor device, the first and second lenses being configured to collimate light.
5. The illumination system of claim 1, wherein the phosphor device comprises a phosphor disposed on a substrate, and the substrate is configured to support and dissipate heat from the phosphor.
6. The illumination system according to any one of claims 1 to 5, wherein the excitation light is blue light and the fluorescence light is yellow light; or the exciting light is ultraviolet light, and the fluorescence is blue light and yellow light.
7. The illumination system according to claim 6, wherein when the excitation light is blue light, a region of the reflective cup corresponding to the incident position of the blue light has a through hole, so that the blue light is incident into the reflective cup through the through hole.
8. The illumination system of claim 6, wherein the reflector cup is made of a material that transmits ultraviolet light and reflects visible light when the excitation light is ultraviolet light.
9. A driving method of a vehicular lamp illumination system, which is applied to the vehicular lamp illumination system according to any one of claims 1 to 8, the driving method comprising:
receiving a lighting demand instruction input by a driver;
and switching the corresponding light transmission area of the diaphragm to an emergent light path of exciting light according to the illumination requirement instruction, so that the light transmission area shapes the light beam section of the exciting light into a corresponding shape, and the shaped exciting light excites the fluorescence to form the white light for illumination with a corresponding shape.
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| CN201510881671.8A CN106838754B (en) | 2015-12-03 | 2015-12-03 | Vehicle lamp lighting system and driving method thereof |
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| CN107166179A (en) | 2017-06-14 | 2017-09-15 | 杨毅 | Light fixture |
| CN107314324B (en) * | 2017-08-10 | 2024-03-26 | 广州市超亮电子科技有限公司 | Laser LED double-light-source high beam car lamp |
| CN107504428A (en) * | 2017-08-31 | 2017-12-22 | 深圳市晶衍科技有限公司 | A kind of car headlamp based on LASER Light Source |
| CN209926252U (en) * | 2019-02-26 | 2020-01-10 | 华域视觉科技(上海)有限公司 | Car lamp module for detection lighting and detection lighting system |
| DE102019118264A1 (en) * | 2019-07-05 | 2021-01-07 | HELLA GmbH & Co. KGaA | Lighting device for a motor vehicle, in particular high-resolution headlights |
| CN113048442A (en) * | 2019-12-31 | 2021-06-29 | 深圳市聚飞光电股份有限公司 | Lamp set |
| CN113835311A (en) * | 2021-09-29 | 2021-12-24 | 深圳市先地图像科技有限公司 | Diaphragm and laser |
| CN114413194A (en) * | 2022-01-27 | 2022-04-29 | 上海度淳科技有限公司 | Light-emitting component with strong smoke penetration and firefighter lighting lamp |
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Effective date of registration: 20171013 Address after: 518055 Guangdong city of Shenzhen province Nanshan District Xi Li Light Road No. 1089 Shenzhen integrated circuit design and application of Industrial Park Building 4 Applicant after: Shenzhen Yili Ruiguang Technology Development Co.,Ltd. Address before: 518055 Guangdong city of Shenzhen province Nanshan District Xi Li Light Road No. 1089 Shenzhen integrated circuit design and application of Industrial Park Building 4 Applicant before: Shenzhen Appotronics Co., Ltd. |
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Denomination of invention: Lamp lighting system and its driving method Effective date of registration: 20210701 Granted publication date: 20210209 Pledgee: Shenzhen hi tech investment small loan Co.,Ltd. Pledgor: APPOTRONICS CHINA Corp. Registration number: Y2021980005630 |