CN113446570A - Automobile headlamp with steering auxiliary function - Google Patents
Automobile headlamp with steering auxiliary function Download PDFInfo
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- CN113446570A CN113446570A CN202110938024.1A CN202110938024A CN113446570A CN 113446570 A CN113446570 A CN 113446570A CN 202110938024 A CN202110938024 A CN 202110938024A CN 113446570 A CN113446570 A CN 113446570A
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- light source
- auxiliary
- auxiliary light
- lens
- light
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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
- F21S41/141—Light emitting diodes [LED]
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
- B60Q1/02—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments
- B60Q1/04—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
- B60Q1/02—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments
- B60Q1/04—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights
- B60Q1/14—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights having dimming means
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
- B60Q1/26—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic
- B60Q1/34—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic for indicating change of drive direction
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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
- F21S41/20—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
- F21S41/25—Projection lenses
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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
- F21S41/30—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by reflectors
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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
- F21S41/30—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by reflectors
- F21S41/32—Optical layout thereof
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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
- F21S43/10—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the light source
- F21S43/13—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the light source characterised by the type of light source
- F21S43/14—Light emitting diodes [LED]
-
- 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
- F21S43/20—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by refractors, transparent cover plates, light guides or filters
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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
- F21S43/30—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by reflectors
- F21S43/31—Optical layout thereof
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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
- F21W2102/10—Arrangement or contour of the emitted light
- F21W2102/13—Arrangement or contour of the emitted light for high-beam region or low-beam region
-
- 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
- F21W2103/00—Exterior vehicle lighting devices for signalling purposes
- F21W2103/20—Direction indicator lights
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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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- 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
- F21Y2115/10—Light-emitting diodes [LED]
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Optics & Photonics (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
本发明公开了一种具有转向辅助功能的汽车大灯，包括沿光路依次设置的第一光源组、远近光切换机构和透镜，透镜与第一光源组对应的上半部分有缺失，还包括与透镜的缺失部分对应的转向辅助模组，转向辅助模组包括分设于左、右两侧的第一辅助光源和第二辅助光源、与第一辅助光源和第二辅助光源对应的出光装置以及连接第一辅助光源和第二辅助光源的感应及控制单元，第一辅助光源和第二辅助光源出射的光线经过出光装置后沿相对的方向交叉投射出去，进行转弯辅助照明。当车辆转弯时，感应及控制单元检测转弯的方向并开启对应的辅助光源进行照明，避免在转弯时出现暗区的问题，该汽车大灯可以实现转弯辅助功能，无需额外设置转向灯，成本低，占用体积小。
The invention discloses an automobile headlight with a steering assist function. The steering auxiliary module corresponding to the missing part of the lens, the steering auxiliary module includes a first auxiliary light source and a second auxiliary light source respectively arranged on the left and right sides, a light emitting device corresponding to the first auxiliary light source and the second auxiliary light source, and a connection The sensing and control unit of the first auxiliary light source and the second auxiliary light source, the light emitted by the first auxiliary light source and the second auxiliary light source passes through the light output device and then crosses and projects in opposite directions to perform turning auxiliary lighting. When the vehicle turns, the sensing and control unit detects the turning direction and turns on the corresponding auxiliary light source for lighting, so as to avoid the problem of dark areas when turning. , occupies a small volume.
Description
Technical Field
The invention relates to the field of automobile illumination, in particular to an automobile headlamp with a steering auxiliary function.
Background
With the development of semiconductor technology, LED (Light Emitting Diode) Light sources have the advantages of high efficiency, energy saving, environmental protection, low cost, long service life, etc., and are gradually replacing traditional incandescent lamps and energy saving lamps, becoming a general illumination Light source, and particularly being widely applied to high-beam and low-beam integrated automobile headlamps.
The existing LED high-low beam integrated automobile headlamp generally comprises a low-beam LED light source module, a high-beam LED light source module, a shading plate and a lens. Passing light LED light source module and distance light LED light source module set up the upper and lower both sides at the support, the below outgoing of lens is projected to the light that passing light LED light source module sent, the outgoing of lens top outgoing is projected to the light of distance light LED light source module, when using, will pass light LED light source module and distance light LED light source module open simultaneously usually, realize passing light illumination and distance light illumination through the light screen, however when meetting the turn, especially have under the environment of barrier in sharp bend or the place ahead, can appear dark area because the limitation of illumination facula scope usually, thereby influence the safety of driving a vehicle. In the prior art, a scheme for solving the problems is provided by adding a steering lamp, however, the addition of the steering lamp not only increases the cost and the occupied volume of the automobile headlamp assembly, but also has low applicability and fails to practically meet the requirements of practical application.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides the automobile headlamp with the steering auxiliary function, which has small volume and convenient operation.
In order to solve the technical problems, the technical scheme of the invention is as follows: the utility model provides an automobile headlamp with turn to auxiliary function, includes the first light source group, far and near light switching mechanism and the lens that set gradually along the light path, the first half that lens and first light source group correspond has the disappearance, still include with the supplementary module that turns to that the disappearance part of lens corresponds, turn to supplementary module including locating left and right both sides first auxiliary light source and the second auxiliary light source of branch, with the light-emitting device that first auxiliary light source and second auxiliary light source correspond and connect first auxiliary light source and second auxiliary light source's response and the control unit, the light of first auxiliary light source and second auxiliary light source outgoing passes through alternately throw away along relative direction behind the light-emitting device.
Further, the induction and control unit comprises an inductor, a data processor and a control switch which are connected in sequence, the inductor is used for detecting the rotating direction of the vehicle and transmitting a detected steering signal to the data processor, and the data processor turns on or turns off the first auxiliary light source and the second auxiliary light source through the control switch according to the steering signal.
Further, the light-emitting device at least comprises a first optical surface and a second optical surface, the first auxiliary light source corresponds to the first reflecting surface, and the second auxiliary light source corresponds to the second reflecting surface.
Furthermore, the light emitting device is a light reflecting bowl or a light emitting lens.
Further, the first light source group comprises a first reflective cup and an LED light source corresponding to a focal point of the first reflective cup, and one end of the first reflective cup, which is far away from the lens, is inclined downward relative to an optical axis of the lens.
Further, the first auxiliary light source and the second auxiliary light source are both LED light sources.
Further, still include to be located the third light source group of first light source group below, the third light source group includes third LED light source and with the light path turning piece that the third LED light source corresponds.
Further, the light path turning piece at least comprises a first reflecting surface and a second reflecting surface, and the third LED light source is projected to the lens to be emitted after passing through the first reflecting surface and the second reflecting surface.
Further, the light path turning piece is a transparent polyhedron, the incident surface of the transparent polyhedron is in a groove shape, and the light emitted by the third LED light source is projected onto the incident surface.
Further, the light path turning piece is a light reflecting bowl, the first reflecting surface is a curved surface reflecting surface, and the second reflecting surface is a plane reflecting surface.
The invention provides an automobile headlamp with a steering auxiliary function, which comprises a first light source group, a high beam and low beam switching mechanism and a lens which are sequentially arranged along a light path, wherein the upper half part of the lens corresponding to the first light source group is lost, the automobile headlamp also comprises a steering auxiliary module corresponding to the lost part of the lens, the steering auxiliary module comprises a first auxiliary light source and a second auxiliary light source which are respectively arranged at the left side and the right side, a light-emitting device corresponding to the first auxiliary light source and the second auxiliary light source and a sensing and control unit connected with the first auxiliary light source and the second auxiliary light source, and light rays emitted by the first auxiliary light source and the second auxiliary light source are projected in a crossed mode along opposite directions after passing through the light-emitting device. Through set up first auxiliary light source and second auxiliary light source in turning to the auxiliary module, and the light process of first auxiliary light source and second auxiliary light source outgoing follow relative direction and alternately throw away behind the light-emitting device, be located the light of left first auxiliary light source outgoing and throw away along the right side behind the light-emitting device promptly, carry out the auxiliary lighting when the vehicle turns right, the light of the second auxiliary light source outgoing that is located the right side throws away along the left side behind the light-emitting device, carry out the auxiliary lighting when the vehicle turns left, can increase the illumination zone of auxiliary light through the mode of alternately throwing, improve the suitability. When the vehicle turned, the direction that response and the control unit detected the turn and opened the auxiliary light source that corresponds and throw light on, avoided the problem that the dark space appears when turning, promoted the formation security of vehicle greatly, satisfied actual demand conscientiously. The automobile headlamp disclosed by the invention not only realizes the far and near light illuminating function, but also can realize the turning auxiliary function, and does not need to additionally arrange a steering lamp, so that the cost is reduced, the occupied volume is reduced, and the applicability is improved.
Drawings
Fig. 1 is a schematic structural view of an automotive headlamp having a steering assist function in embodiment 1 of the present invention;
FIG. 2 is a schematic view showing the positions of a lens and a steering assist module in example 1 of the present invention;
fig. 3 is a control schematic diagram of an induction and control unit in embodiment 1 of the present invention;
FIG. 4 is a schematic structural view of an automobile headlamp with a steering assist function according to embodiment 2 of the present invention;
FIG. 5 is a schematic structural view of an automobile headlamp with a steering assist function according to embodiment 3 of the present invention;
fig. 6 is a schematic cross-sectional view of an optical path turning piece in embodiment 3 of the present invention;
fig. 7 is a schematic structural diagram of two optical path turning members in embodiment 4 of the present invention;
fig. 8 is a schematic structural view of a structural view of an automotive headlamp with a steering assist function according to embodiment 5 of the present invention;
fig. 9 is a schematic structural diagram of the optical path turning piece in embodiment 5 of the present invention.
Shown in the figure: 10. a first light source group; 110. an LED light source; 120. a first reflective cup; 20. a high beam and low beam switching mechanism; 30. a lens; 310. an optical axis; 410. a first auxiliary light source; 420. a second auxiliary light source; 430. a light emitting device; 431. a first optical surface; 432. a second optical surface; 440. a sensing and control unit; 441. an inductor; 442. a data processor; 443. a control switch; 50. a third light source group; 510. a third LED light source; 520. a light path turning member; 521. an incident surface; 522. a first reflective surface; 523. a second reflective surface; 524. an exit surface.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings.
Example 1
As shown in fig. 1, the present invention provides an automotive headlamp with steering assist function, which comprises a first light source group 10, a high beam and low beam switching mechanism 20 and a lens 30, which are sequentially arranged along a light path, wherein the upper half portion of the lens 30 corresponding to the first light source group has a defect, that is, the size of the lens 30 is between that of a semicircular lens and that of a circular lens, or the lens can be regarded as a circular lens with a part cut off, and the cut off part is smaller than that of the half lens. The automobile headlamp further comprises a steering auxiliary module corresponding to the missing part of the lens 30, the steering auxiliary module comprises a first auxiliary light source 410 and a second auxiliary light source 420 which are respectively arranged on the left side and the right side, a light emitting device 430 corresponding to the first auxiliary light source 410 and the second auxiliary light source 420, and a sensing and control unit 440 connected with the first auxiliary light source 410 and the second auxiliary light source 420, and light rays emitted by the first auxiliary light source 410 and the second auxiliary light source 420 are projected in a crossed mode in opposite directions after passing through the light emitting device 430. Specifically, the light that first light source group goes out projects and forms first light zone in the place ahead of lens 30 to through the emergence behind the lens collimation, when needs passing light illumination, far and near light switching mechanism 20 shelters from the partial light that first light source group goes out and forms the passing light facula, and when needs passing light illumination, far and near light switching mechanism 20 does not shelter from the light that first light source group goes out, forms the high beam facula. Turn to auxiliary module including the first auxiliary light source 410 and the second auxiliary light source 420 of locating the left and right sides branch, be the direction that relative vehicle gos forward about here, the light process of first auxiliary light source 410 and the emergent of second auxiliary light source 420 along relative direction alternately throw away behind the light-emitting device 430, the light that lies in the emergent of left first auxiliary light source 410 is thrown away along the right side after the light-emitting device 430 promptly, carry out the auxiliary lighting when the vehicle turns to the right, the light that lies in the emergent of the second auxiliary light source 420 on right side is thrown away along the left side after the light-emitting device 430, carry out the auxiliary lighting when the vehicle turns to the left, can increase the illumination zone of auxiliary light through the mode of alternately throwing, improve the suitability. When the vehicle turned, the direction that response and the control unit detected the turn and opened the auxiliary light source that corresponds and throw light on, avoided the problem that the dark space appears when turning, promoted the formation security of vehicle greatly, satisfied actual demand conscientiously. The automobile headlamp disclosed by the invention not only realizes the far and near light illuminating function, but also can realize the turning auxiliary function, and does not need to additionally arrange a steering lamp, so that the cost is reduced, the occupied volume is reduced, and the applicability is improved.
Preferably, the first auxiliary light source 410 and the second auxiliary light source 420 are both LED light sources, and the number of the LED light sources may be 1 or 2, which is not limited herein.
Preferably, as shown in fig. 3, the sensing and controlling unit 440 includes a sensor 441, a data processor 442 and a control switch 443, which are connected in sequence, the sensor 441 is used to detect a direction of the vehicle, a sensor such as a sensor that can detect the direction can be used, and a detected steering signal can be transmitted to the data processor 442, the data processor 442 can be a single chip microcomputer, and the single chip microcomputer turns on or turns off the first auxiliary light source 410 and the second auxiliary light source 420 through the control switch 443 according to the steering signal detected by the sensor 441, that is, if the sensor 441 detects a left-turn signal, the control switch 443 turns off the first auxiliary light source 410 and turns on the second auxiliary light source 420, and if the sensor 441 detects a right-turn signal, the first auxiliary light source 410 and the second auxiliary light source 420 are turned on and off.
Preferably, as shown in fig. 2, the light emitting device 430 includes at least a first optical surface 431 and a second optical surface 432, the first auxiliary light source 410 corresponds to the first optical surface 431, and the second auxiliary light source 420 corresponds to the second optical surface 432. The light emitted by the first auxiliary light source 410 is reflected by the first optical surface 431 and then emitted along the right side, and the light emitted by the second auxiliary light source 420 is reflected by the second optical surface 432 and then emitted along the left side. As shown in fig. 2, the light-emitting device 430 is a bilaterally symmetric light-reflecting bowl, and the first optical surface 431 and the second optical surface 432 are curved reflective surfaces, respectively. Of course, the light emitting device may be a light emitting lens, a large light emitting lens, or two small light emitting lenses, as long as the above functions are achieved.
Example 2
As shown in fig. 4, unlike embodiment 1, the first light source group 10 includes a first reflector cup 120 and an LED light source 110 corresponding to a focal point of the first reflector cup 120, and an end of the first reflector cup 120 away from the lens 30 is inclined downward relative to an optical axis of the lens 30. In the existing lamp, the bottom of the first reflective cup 120 is generally parallel to the optical axis of the lens 30, and in this embodiment, the end of the first reflective cup 120 away from the lens 30 is inclined downward relative to the optical axis 310 of the lens 30, that is, the end of the first reflective cup 120 away from the lens 30 is rotated downward relative to the optical axis 310 of the lens 30 by a certain angle, so that the first reflective cup 120 can collect and emit light rays with a larger angle emitted by the first LED light source 110, and the illumination brightness and the light source utilization rate are further improved. In addition, the end of the first reflective cup 120 away from the lens 30 is rotated downward by a certain angle relative to the optical axis of the lens 30, so that the emitted light can reach the region above the optical axis 310 of the lens 30 better, that is, the area of the first light region is increased, and the central light intensity of the illumination light spot is improved.
Example 3
As shown in fig. 5, different from embodiments 1 and 2, in the present embodiment, the automotive headlamp with steering assist function further includes a third light source group 50 located below the first light source group 10, where the third light source group 50 includes a third LED light source 510 and a light path turning member 520 corresponding to the third LED light source 510. Preferably, the light path turning member 520 at least includes a first reflecting surface 522 and a second reflecting surface 523, the third LED light source 510 projects onto the lens 30 to exit after passing through the first reflecting surface 522 and the second reflecting surface 523, and specifically, the light emitted by the third LED light source 510 changes direction through the light path turning member and projects to the front of the lens 30 to form a second light region, which is above the first light region. In this embodiment, the light path turning member 520 is a transparent polyhedron including an incident surface 521, a first reflecting surface 522, a second reflecting surface 523 and an emitting surface 524, and the incident surface 521 corresponds to a light emitting surface of the third LED light source 510. The transparent polyhedron is surrounded by a plurality of curved surfaces and planes, as shown in fig. 6, wherein the incident surface 521 is in a groove shape, the incident surface 521 corresponds to the light-emitting surface of the third LED light source 510, that is, the light-emitting surface of the third LED light source 510 corresponds to the groove structure, and the emergent light rays are projected onto the incident surface 521 as much as possible for collection and utilization, so that the light utilization efficiency is maximized.
Preferably, the incident surface 521 is a rotating curved surface formed by rotating a plurality of lines, the plurality of lines include a curved surface located in the middle and straight lines located at two sides, the light emitted from the third LED light source 510 is projected onto the curved surface formed by rotating the curved surface and the curved surface formed by rotating the straight lines at two sides, is directly projected onto the second reflecting surface 523 or is projected onto the second reflecting surface 523 after being reflected by the first reflecting surface 522, and is finally emitted through the exit surface 524 after being reflected by the second reflecting surface 523. In this embodiment, the first reflective surface 522 and the second reflective surface 523 are all internal reflective surfaces, and can reflect all incident light beams to avoid light loss, or certainly, a reflective layer with high reflectivity may be coated on the outer sides of the first reflective surface 522 and the second reflective surface 523, so as to reflect the incident light beams. In this embodiment, the first reflecting surface 522 is a curved reflecting surface, and the second reflecting surface 523 is a planar reflecting surface. Preferably, the exit surface 524 is a plane, and for convenience of description, an xyz spatial coordinate system is established, wherein the z-axis is along the optical axis 310 of the lens 30, and the yz plane is a symmetrical plane of the whole optical system, then the multi-segment line in this embodiment rotates 360 ° around the y-axis to form the entrance surface 521, and the exit surface 524 forms an angle of 10 ° to 15 ° with the xy-plane.
Preferably, the third LED light source 510 and the transparent polyhedron are respectively provided with two light sources, which are in one-to-one correspondence, that is, the third light source group 50 includes two independent light source modules, each light source module includes the third LED light source 510 and the transparent polyhedron, light emitted from each third LED light source 510 is projected onto the incident surface 521 of the corresponding transparent polyhedron, and is sequentially projected onto the lens 30 through the first reflecting surface 522, the second reflecting surface 523 and the emitting surface 524 for emission, in this embodiment, the two transparent polyhedrons are connected into a whole, the emitting surface 524 of the transparent polyhedron is a plane, and the included angle θ between the two emitting surfaces 524 is 160 ° to 175 °, as shown in fig. 7, distortion generated when output light of the two light source modules converges can be reduced, so that the light pattern of high beam is more perfect. Of course, the emergent surfaces 524 of the two transparent polyhedrons can also be concave curved surfaces, and the emergent surfaces 524 of the two transparent polyhedrons are discontinuous and have obvious jump.
Example 4
Unlike embodiment 3, as shown in fig. 8, the optical path turning member 520 is a light reflecting bowl, the first reflecting surface 522 is a curved reflecting surface, which may be an ellipsoid of revolution or a paraboloid of revolution, and the second reflecting surface 523 is a planar reflecting surface. The first reflecting surface 522 and the second reflecting surface 523 can be integrally formed by die casting and are made of PC materials by die casting, so that the manufacturing cost is low, and the relative positions of the first reflecting surface 522 and the second reflecting surface 523 are ensured by a die, so that the precision is high.
Example 5
As shown in fig. 9, unlike embodiment 4, the first reflecting surface 522 and the second reflecting surface in this embodiment may be made independently, for example, the first reflecting surface 522 is formed by die casting using a PC material, and the second reflecting surface 523 is a plane reflecting mirror and is made of a mirror aluminum plate. The second reflecting surface 523 is made of a mirror aluminum plate, so that higher reflectivity can be obtained, the light efficiency is higher, and in addition, the aluminum material has high heat conductivity and good heat dissipation and can bear higher optical power density.
Although the embodiments of the present invention have been described in the specification, these embodiments are merely provided as a hint, and should not limit the scope of the present invention. Various omissions, substitutions, and changes may be made without departing from the spirit of the invention and are intended to be within the scope of the invention.
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110938024.1A CN113446570A (en) | 2021-08-16 | 2021-08-16 | Automobile headlamp with steering auxiliary function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110938024.1A CN113446570A (en) | 2021-08-16 | 2021-08-16 | Automobile headlamp with steering auxiliary function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113446570A true CN113446570A (en) | 2021-09-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110938024.1A Pending CN113446570A (en) | 2021-08-16 | 2021-08-16 | Automobile headlamp with steering auxiliary function |
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| Country | Link |
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| CN (1) | CN113446570A (en) |
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| CN114110528A (en) * | 2021-12-03 | 2022-03-01 | 苏州晶清光电科技有限公司 | Lighting lamp and using method thereof |
| CN116877951A (en) * | 2023-08-11 | 2023-10-13 | 广州市佛达信号设备有限公司 | Side steering lamp |
| CN116901825A (en) * | 2022-04-18 | 2023-10-20 | 丰田自动车株式会社 | Road surface drawing device for vehicle |
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| CN114110528A (en) * | 2021-12-03 | 2022-03-01 | 苏州晶清光电科技有限公司 | Lighting lamp and using method thereof |
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| CN116877951A (en) * | 2023-08-11 | 2023-10-13 | 广州市佛达信号设备有限公司 | Side steering lamp |
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