CN117730230A - Optical reflection system for a vehicle lamp lighting device and vehicle lamp lighting device - Google Patents
Optical reflection system for a vehicle lamp lighting device and vehicle lamp lighting device Download PDFInfo
- Publication number
- CN117730230A CN117730230A CN202180100453.XA CN202180100453A CN117730230A CN 117730230 A CN117730230 A CN 117730230A CN 202180100453 A CN202180100453 A CN 202180100453A CN 117730230 A CN117730230 A CN 117730230A
- Authority
- CN
- China
- Prior art keywords
- light
- reflector
- optical
- optical reflection
- reflection system
- 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
- 230000003287 optical effect Effects 0.000 title claims abstract description 210
- 238000005286 illumination Methods 0.000 claims abstract description 54
- 238000009792 diffusion process Methods 0.000 claims description 13
- 238000007747 plating Methods 0.000 claims description 9
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 6
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 3
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- 229910052804 chromium Inorganic materials 0.000 claims description 3
- 239000011651 chromium Substances 0.000 claims description 3
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 3
- 229910052737 gold Inorganic materials 0.000 claims description 3
- 239000010931 gold Substances 0.000 claims description 3
- 229910052759 nickel Inorganic materials 0.000 claims description 3
- 229910052709 silver Inorganic materials 0.000 claims description 3
- 239000004332 silver Substances 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 18
- 238000009826 distribution Methods 0.000 description 12
- 230000000694 effects Effects 0.000 description 9
- 238000004519 manufacturing process Methods 0.000 description 9
- 230000002457 bidirectional effect Effects 0.000 description 4
- 238000003384 imaging method Methods 0.000 description 4
- 239000011159 matrix material Substances 0.000 description 3
- 230000033228 biological regulation Effects 0.000 description 2
- 238000001746 injection moulding Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 238000005269 aluminizing Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- 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
- F21S41/36—Combinations of two or more separate reflectors
- F21S41/365—Combinations of two or more separate reflectors successively reflecting the light
-
- 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]
- F21S41/147—Light emitting diodes [LED] the main emission direction of the LED being angled to the optical axis of the illuminating device
-
- 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
- F21S41/321—Optical layout thereof the reflector being a surface of revolution or a planar surface, e.g. truncated
Abstract
An optical reflection system for a vehicle lamp lighting device and a vehicle lamp lighting device, comprising a primary optical system having a light source (80), the optical reflection system being configured to receive a light beam emitted by the light source (80) of the primary optical system, the optical reflection system comprising a first reflector having a first reflection surface (10) and a second reflector having a second reflection surface (20), the first reflection surface (10) being configured to collimate light in a first direction and the second reflection surface (20) being configured to collimate light in a second direction orthogonal to the first direction, the first reflection surface (10) and the second reflection surface (20) having a curved shape characterized by a contour line, the curved shape being a curved surface in which the contour line stretches along a normal direction of a plane in which the contour line lies, the optical reflection system being configured such that the light beam emitted from the primary optical system having the light source (80) is reflected by the first reflector and the second reflector to be emitted in a form of a nearly parallel light beam, thereby forming an illumination light shape of the vehicle lamp lighting device.
Description
The present disclosure relates to a vehicle lamp lighting device, and in particular, to an optical reflection system for a vehicle lamp lighting device and a vehicle lamp lighting device.
This section provides background information related to the present disclosure, but such information does not necessarily constitute prior art.
In order to meet the requirements of different lamp models and illumination light shapes, the forms of illumination devices on vehicles are more and more diversified, low beam illumination devices, high beam and low beam integrated illumination devices, auxiliary low beam illumination devices, auxiliary high beam illumination devices and the like are presented, and new technologies for the lamp illumination devices provided with optical collimating elements are also layered in recent years.
An optical collimating element such as a collimating lens is typically provided in a vehicle lamp lighting device to obtain an approximately parallel outgoing beam. For example, patent application CN107208859a discloses a lighting device having at least one collimating lens, preferably aspherical. In addition, patent application CN212618084U discloses a bi-directional collimating lens and a lamp system thereof.
Disclosure of Invention
This section provides a general summary of the disclosure, and is not a comprehensive disclosure of its full scope or all of its features.
The inventors of the present disclosure found that, in the existing vehicle lamp lighting device employing a collimator lens as an optical collimating element, the curved surface on the collimator lens is a revolution curved surface based on the optical axis of the lens, and the imaging characteristics of the collimator lens are isotropic. However, the illumination light shape of the lamp illumination device has an anisotropic requirement, and for example, the low beam illumination light shape requires a small up-down illumination angle and a large left-right illumination angle. For this reason, the collimator lens-based lamp lighting device requires forming a basic light shape having a certain width by an additional optical system and then imaging the basic light shape onto a road surface by the collimator lens, which makes the structure of the lamp lighting device relatively complex. In addition, for the existing car light system using the bidirectional collimating lens as the optical collimating element, because a certain distance exists between the light incident surface and the light emergent surface of the bidirectional collimating lens, namely, the lens has a certain thickness, when the length-width dimension ratio of the light shape to be formed is set to be a larger value, the focal length of the light incident surface and the focal length of the light emergent surface are larger, so that the distance between the light incident surface and the light emergent surface is larger, the volume of the lens is enlarged, and the weight is heavier. In addition, the bidirectional collimating lens is generally formed by injection molding of transparent plastic, and the thicker the thickness is, the longer the injection molding process time is, so that the production beat is slowed down, and the mass production is not facilitated.
Accordingly, there is a need for an improved optical collimating element for a vehicle lamp lighting device that overcomes or alleviates all or at least some of the above-identified technical problems.
Exemplary embodiments of the present disclosure provide an optical reflection system for a vehicle lamp lighting device, which may include a primary optical system having a light source, the optical reflection system may be configured to receive a light beam emitted by the light source of the primary optical system, wherein the optical reflection system may include a first reflector having a first reflection surface and a second reflector having a second reflection surface, the first reflection surface may be configured to collimate light in a first direction, and the second reflection surface may be configured to collimate light in a second direction orthogonal to the first direction, the first reflection surface and the second reflection surface may have a curved shape characterized by a contour line, the first reflection surface and the second reflection surface may be curved surfaces formed by stretching the respective contour line along a normal direction of a plane in which the contour line lies, the optical reflection system may be configured such that: the light beam emitted from the primary optical system having the light source may be emitted in the form of nearly parallel light after being reflected by the first reflector and reflected by the second reflector, thereby forming an illumination light shape of the lamp illumination device.
In some implementations, the contour lines may include parabolic or parabolic-like lines.
In some embodiments, the first direction may be a horizontal direction or a vertical direction.
In some embodiments, the contour line shape of each of the first and second reflection surfaces may be set such that a light diffusion angle of a light beam obtained after reflection via each of the first and second reflection surfaces changes with a change in the contour line shape of each of the first and second reflection surfaces.
In some embodiments, the focal length of the first reflective surface may be set to be different from the focal length of the second reflective surface.
In some embodiments, the first and second reflectors may be disposed adjacent to one another on the same side of the light source, or the first and second reflectors may be disposed on opposite sides of the light source.
In some embodiments, the primary optical system may be a primary optical system having a cut-off line structure, and the focal point of the optical reflection system may be disposed at the cut-off line structure.
In some embodiments, the first reflector may include a plurality of first reflective surfaces, and the optical reflection system may be configured to: the light beam emitted from the primary optical system having the light source may be emitted in a nearly parallel beam manner after being reflected by the first reflector and reflected by the second reflector, thereby forming a matrix-type illumination light shape of the vehicle lamp illumination device.
In some embodiments, the first reflective surface and the second reflective surface of the optical reflective system may be formed by plating using a plating material.
In some embodiments, the plating material of the first reflective surface and the second reflective surface may be at least one of aluminum, chromium, nickel, silver, and gold.
In some embodiments, the first reflector and the second reflector may be manufactured separately and assembled in place in the vehicle lamp lighting device by connecting fasteners.
In some embodiments, the first reflector and the second reflector may be integrally formed.
In some embodiments, the primary optical system may include a third reflector configured to reflect light from the light source and direct the light to the optical reflection system.
In some embodiments, the primary optical system may include a condenser, which may be configured to collimate, focus, and direct light from the light source to the optical reflection system, and a lower edge of which may be provided with a cut-off line structure.
In some embodiments, the optical reflection system may include an additional fourth reflector, and the first and second reflectors and the fourth reflector may be configured to collectively form a focal point or focal region of the optical reflection system.
In some embodiments, the present disclosure provides a vehicle lamp lighting device comprising the above-described optical reflection system.
According to the optical reflection system including two reflectors of the present disclosure, collimation and convergence of a light beam from a light source in two directions orthogonal to each other can be achieved. Compared with the existing collimating lens element, the optical reflecting system structure has simple and compact structural design, is easy to manufacture, further improves the production efficiency and has obvious cost effectiveness.
According to the vehicular lamp lighting device including the optical reflection system of the present disclosure, by setting the focal length of the first reflection surface of the first reflector to be different from the focal length of the second reflector, it is possible to realize an illumination light shape having a large aspect ratio. The first reflector and the second reflector of the optical reflection system can be relatively independently constructed, the design flexibility is high, the trend and the diffusion range of light beams can be effectively controlled, and therefore ideal illumination light shape can be obtained according to requirements, and meanwhile the light distribution requirement of national standard GB25991-2010 on the car lamp illumination device can be met.
The above features and advantages and other features and advantages of the present disclosure will be more apparent from the following detailed description of exemplary embodiments thereof in connection with the accompanying drawings.
The above and other objects, features and advantages of the present disclosure will be more readily understood by reference to the following detailed description of exemplary embodiments of the disclosure taken in conjunction with the accompanying drawings. The same or corresponding technical features or elements will be denoted by the same or corresponding reference numerals throughout the drawings. The dimensions and relative positioning of the various elements in the drawings are not necessarily drawn to scale. In the drawings:
FIG. 1 is a schematic illustration of a vehicle lamp lighting device including a primary optical system and an optical reflection system according to an exemplary embodiment of the present disclosure;
FIG. 2 is a schematic diagram of the optical path of a single rotating parabolic reflector;
FIG. 3 is a schematic light path diagram of an optical reflection system having a first reflector and a second reflector according to an exemplary embodiment of the present disclosure;
FIG. 4 is a schematic illustration of the optical path of a light beam in the vertical direction of the optical reflection system of FIG. 3 according to an exemplary embodiment of the present disclosure;
FIG. 5 is a schematic illustration of the optical path of a light beam in the horizontal direction of the optical reflection system of FIG. 3 according to an exemplary embodiment of the present disclosure;
FIG. 6 is a schematic view of a low beam illumination light shape having a cutoff line;
FIG. 7 is a schematic illustration of a high beam illumination pattern having a central maximum;
fig. 8A and 8B are schematic optical path diagrams of an optical reflection system according to an exemplary embodiment of the present disclosure, wherein the first reflection surface is parabolic;
FIG. 9 is a schematic light path diagram of an optical reflection system having a first reflector and a second reflector according to an exemplary embodiment of the present disclosure;
FIG. 10 is a schematic illustration of the optical path of a light beam in the horizontal direction of the optical reflection system of FIG. 9 according to an exemplary embodiment of the present disclosure;
FIG. 11 is a schematic illustration of the optical path of a light beam in the vertical direction of the optical reflection system of FIG. 9 according to an exemplary embodiment of the present disclosure;
FIG. 12 is a schematic light path diagram of a vehicle lamp lighting device according to an exemplary embodiment of the present disclosure;
FIG. 13 is a schematic light path diagram of a vehicle lamp lighting device according to another exemplary embodiment of the present disclosure;
fig. 14 and 15 are schematic optical path diagrams of a vehicle lamp lighting device according to an exemplary embodiment of the present disclosure, wherein a primary optical system of the vehicle lamp lighting device includes a light source and a third reflector having a plurality of reflective surfaces;
fig. 16 and 17 are optical path diagrams of a lamp lighting device according to an exemplary embodiment of the present disclosure, in which a lower boundary of a third reflector of a primary optical system of the lamp lighting device is formed with a cut-off line structure;
Fig. 18 to 20 are perspective views of a lamp lighting device having the optical path shown in fig. 15 according to an exemplary embodiment of the present disclosure;
FIG. 21 is a front view of the lamp lighting device shown in FIG. 18 in accordance with an exemplary embodiment of the present disclosure;
FIG. 22 is a cross-sectional view of the vehicle lamp lighting device shown in FIGS. 18 and 19, according to an exemplary embodiment of the present disclosure;
FIG. 23 is an optical path diagram of the lamp lighting device of FIG. 22 in accordance with an exemplary embodiment of the present disclosure;
FIG. 24 is a front view of a second reflector according to an exemplary embodiment of the present disclosure;
FIG. 25 is a longitudinal cross-sectional view of a second reflector according to an exemplary embodiment of the present disclosure;
FIG. 26 is a transverse cross-sectional view of a second reflector according to an exemplary embodiment of the present disclosure;
FIG. 27 is a front view of a first reflector according to an exemplary embodiment of the present disclosure;
FIG. 28 is a longitudinal cross-sectional view of a first reflector according to an exemplary embodiment of the present disclosure;
FIG. 29 is a transverse cross-sectional view of a first reflector according to an exemplary embodiment of the present disclosure;
FIG. 30 is a schematic light path diagram of an optical reflection system according to further exemplary embodiments of the present disclosure, wherein the optical reflection system includes a fourth reflector;
FIG. 31 is a schematic view of the light pattern formed by a 1mmx1mm LED light emitting chip when it is placed at the focal point of a single paraboloid of revolution reflector and its light is reflected by the single paraboloid of revolution reflector; and
fig. 32 is a schematic diagram of a light pattern formed by projecting light of a 1mmx1mm LED light emitting chip onto the focal point of the optical reflection system of the present disclosure through the optical reflection system.
The disclosure will be described in detail below with the aid of exemplary embodiments with reference to the accompanying drawings. It is noted that the exemplary embodiments of the present disclosure are intended to enable one of ordinary skill in the art to readily implement the present disclosure, and that the embodiments of the present disclosure may be implemented in many different forms and should not be construed as limited to the embodiments set forth in the present disclosure. Accordingly, the following detailed description of the present disclosure is for purposes of illustration only and is not intended to be limiting of the present disclosure in any way. Furthermore, the same reference numerals are used to denote the same parts throughout the various figures.
It should also be noted that, for the sake of clarity, not all features of an actual particular implementation are described and shown in the specification and drawings, and, to avoid obscuring the technical solutions of interest to the present disclosure, only device structures closely related to the technical solutions of the present disclosure are described and shown in the drawings and the specification, while other details not greatly related to the technical content of the present disclosure and known to those skilled in the art are omitted.
Automotive lamp lighting devices, in particular headlamps for vehicles, generally comprise a primary optical system with a light source and an optical collimator element to achieve a satisfactory illumination light shape. In some existing car lamp lighting devices, a bi-directional collimating lens is employed as an optical collimating element, but in the case where a car lamp lighting device is required to obtain an illumination light shape having a large aspect ratio, the bi-directional collimating lens is generally manufactured to have a substantial volume and a heavy weight, thus resulting in low production efficiency and high cost.
In view of the above, the present disclosure provides an optical reflection system for a vehicle lamp lighting device, and an exemplary embodiment of a vehicle lamp lighting device having an optical reflection system according to the present disclosure is described below with reference to fig. 1.
Fig. 1 is a schematic view of a vehicle lamp lighting device including a primary optical system and an optical reflection system according to an exemplary embodiment of the present disclosure. The primary optical system has a light source 80, and the optical reflection system is configured to reflect light emitted from the light source 80 via the primary optical system. The primary optical system may include a third reflector 70, and the light beam emitted from the light source 80 may be reflected by the third reflector 70, and then received and reflected by the optical reflection system to form an illumination light shape of the lamp illumination device. The third reflector 70 in the primary optical system may be a parabolic or parabolic-like mirror and the focal point of the optical reflection system may be disposed on the reflective surface of the third reflector 70. In the exemplary embodiment shown, the optical reflection system comprises a first reflector with a first reflection surface 10 and a second reflector with a second reflection surface 20. The first reflective surface 10 is configured to collimate light in a first direction and the second reflective surface 20 is configured to collimate light in a second direction orthogonal to the first direction. The first reflecting surface 10 and the second reflecting surface 20 have curved shapes characterized by contour lines. The first reflecting surface 10 and the second reflecting surface 20 are curved surfaces formed by stretching the corresponding contour lines along the normal direction of the plane in which the contour lines are located. The optical reflection system is configured to: the light emitted from the primary optical system having the light source is reflected by the first reflector and reflected by the second reflector and then emitted in a nearly parallel beam form, thereby forming an illumination light shape of the lamp illumination device.
In the context of the present disclosure, a "light source" may particularly denote a source of light (e.g. a means or device that emits light). For example, the light source may be a Light Emitting Diode (LED) that emits light when activated. In the context of the present disclosure, a light source may be essentially any light source or light emitter, including but not limited to Light Emitting Diodes (LEDs), lasers, fluorescent lamps, incandescent lamps, and the like.
In the context of the present disclosure, the primary optical system is configured for receiving light from the light source and guiding and transmitting the received light to form a primary light distribution, which after projection via the optical reflection system forms a desired illumination light shape.
In some embodiments, the first reflector may be a first mirror and the second reflector may be a second mirror. In some embodiments, either of the first reflector and the second reflector may be a parabolic reflector. In the context of the present disclosure, a "parabolic reflector" particularly means a reflector having a reflecting surface with a parabolic profile in cross-sectional shape, which is a curved surface formed by stretching a parabola along the normal direction of the plane in which the parabola lies. In other words, the generatrix forming the reflecting surface is a parabola, the reflecting surface of the parabolic reflector is a parabola formed by stretching a parabola in one direction, each section line of the reflecting surface taken along a plane perpendicular to the stretching direction corresponds to a focal point, and the reflecting surface corresponds to a focal line.
In some embodiments, the illumination light shape formed by the optical reflection system shown in fig. 1 may be a high beam illumination light shape having a central maximum as shown in fig. 7. The focal point of the optical reflection system shown in fig. 1 may be disposed on the reflection surface of the third reflector 70 to form a high beam shape as shown in fig. 7, where the high beam shape has a light intensity center position (generally, a light intensity center maximum area) so as to meet the light distribution requirement of the high beam (refer to the relevant regulations of the national standard "LED headlamps for automobile" (GB 25991-2010)).
Fig. 2 shows a schematic diagram of the optical path of a single paraboloid of revolution reflector. The single paraboloid of revolution reflector 50 is an axisymmetric quadric reflector, and when the light source is located at the focal point 501, the light beam emitted by the light source is reflected by the paraboloid of revolution reflector 50 to obtain a parallel light beam.
The basic configuration of the optical reflection system according to the present disclosure is described in detail next with reference to fig. 3 to 7. Fig. 3 shows a schematic light path diagram of an optical reflection system having a first reflector and a second reflector according to an exemplary embodiment of the present disclosure. Fig. 4 is a schematic view of an optical path of a light beam in a vertical direction of the optical reflection system of fig. 3 according to an exemplary embodiment of the present disclosure. Fig. 5 is a schematic view of an optical path of a light beam in a horizontal direction of the optical reflection system of fig. 3 according to an exemplary embodiment of the present disclosure.
In embodiments of the present disclosure, the light beam is collimated in two directions that are generally orthogonal to the propagation direction of the light beam. In addition, the two collimation directions are mutually orthogonal to each other. For example, the light beam may be collimated in the horizontal direction (e.g., the x-y plane of the coordinate system shown in fig. 4) as well as in the vertical direction (e.g., the z-direction). In the context of the present disclosure, for example, the horizontal and vertical directions may be determined relative to an arbitrary frame of reference, the parallel light beams provided by the optical reflection system being said to be horizontally and vertically collimated.
As an example, the description will be made below with the first direction being the horizontal direction and the second direction being the vertical direction (i.e., the first reflecting surface 10 is configured to collimate the light beam in the horizontal direction and the second reflecting surface 20 is configured to collimate the light beam in the vertical direction).
In the context of the present disclosure, "collimation in the horizontal direction" may particularly denote: referring to fig. 5, the first reflecting surface 10 has a converging effect on the light beam in a horizontal cross section (i.e., a cross section taken along a horizontal direction), i.e., is capable of having a certain collimating effect on the light beam, and in contrast to fig. 4, the first reflecting surface 10 has no collimating effect on the light beam in a vertical cross section (i.e., a cross section taken along a vertical direction) (a cross section curve of the first reflecting surface 10 in a cross section taken along a vertical direction is a straight line), and the first reflecting surface 10 has a collimating effect on the light beam in a single direction within the range of the horizontal cross section, that is, the collimating direction of the first reflecting surface 10 is defined in the horizontal direction. "collimation in the vertical direction" may particularly denote: referring to fig. 4, the second reflecting surface 20 has a converging effect on the light beam in a vertical section, i.e., is capable of having a certain collimating effect on the light beam, and in contrast to fig. 5, the second reflecting surface 20 has no collimating effect on the light beam in a horizontal section, and the second reflecting surface 20 has a collimating effect on the light beam in a single direction in a vertical section range, that is, the collimating direction of the second reflecting surface 20 is defined in the vertical direction. The second reflecting surface 20 has optical characteristics similar to those of the first reflecting surface 10 for collimating the light beam emitted from the light source in one direction.
As shown in fig. 3, in some embodiments according to the present disclosure, the first reflective surface 10 of the optical reflection system may be configured to collimate light in a horizontal direction (see fig. 5), and the second reflective surface 20 may be configured to collimate light in a vertical direction (see fig. 4). In the case where the focal length of the first reflecting surface 10 is smaller than that of the second reflecting surface 20, according to the principle that the larger the focal length is, the smaller the imaging is, the optical reflecting system shown in fig. 3 makes the degree of diffusion of the light beam in the horizontal direction larger than the degree of diffusion in the vertical direction, and an illumination light shape that is wider in the horizontal direction and relatively narrower in the vertical direction, that is, an illumination light shape that is wide in the left-right, up-down, can be formed. In some examples, a 1mmx1mm LED light emitting chip is placed at the focus of a single paraboloid of revolution (such as single paraboloid of revolution 50 shown in fig. 2), forming a square spot as shown in fig. 31. And when the LED light-emitting chip with the length of 1mmx1mm is placed at the focus of the bidirectional collimation optical reflection system shown in fig. 3, a rectangular asymmetric light spot shown in fig. 32 is formed, and the length of the light spot shown in fig. 32 in the horizontal direction is longer than that in the vertical direction because the focal length of the first reflection surface is smaller than that of the second reflection surface.
As shown in fig. 4 and 5, in some exemplary embodiments according to the present disclosure, the first reflective surface 10 is a curved surface formed by stretching a parabolic shaped generatrix (first contour line 15) along a normal direction (first stretching direction a) of a plane in which the generatrix is located, and the second reflective surface 20 is a curved surface formed by stretching a parabolic shaped generatrix (second contour line 25) along a normal direction (second stretching direction B) of a plane in which the generatrix is located. Specifically, the generatrix of the first reflecting surface 10 of the first reflector is a first contour line 15, the generatrix of the second reflecting surface 20 of the second reflector is a second contour line 25, and the normal direction of the plane in which the first contour line 15 of the first reflecting surface 10 is located is a first stretching direction a, i.e. the plane in which the first contour line 15 of the first reflecting surface 10 is located is perpendicular to the first stretching direction a. The normal direction of the plane of the second contour line 25 of the second reflecting surface 20 of the second reflector is the second stretching direction B, i.e. the plane of the second contour line 25 of the second reflecting surface 20 is perpendicular to the second stretching direction B. The second reflecting surface 20 has a focal line, an intersection point where a vertical plane passing through the focal point 300 of the optical reflecting system intersects the focal line of the second reflecting surface 20 is the first focal point 200, and the focal point 300 of the optical reflecting system and the first focal point 200 of the second reflecting surface 20 may be mirrored about the first stretching guide line 101 (refer to fig. 4), and the first stretching guide line 101 is an intersection line where a vertical plane passing through the focal point 300 of the optical reflecting system intersects the first reflecting surface 10.
Since the focal point 300 of the optical reflection system is mirrored with respect to the first focus point 200 of the second reflection surface 20 with respect to the first stretch guide line 101, the position of the focal point 300 of the optical reflection system can be adjusted by adjusting the position of the first stretch guide line 101 with respect to the first focus point 200 of the second reflection surface. In some embodiments, where the contour shape of the second reflective surface 20 is determined, the location of the focal line of the second reflective surface may be determined. The connection line between the focal point 300 of the optical reflection system and the first focal point 200 of the second contour line of the second reflection surface 20 may form an angle b with the first stretching guide line 101, and thus the position of the focal point 300 of the optical reflection system may be adjusted by changing the position of the first reflection surface 10 and thus the angle b.
According to the configuration of the above-described exemplary embodiment of the present disclosure, since the position of the focal point 300 of the optical reflection system can be adjusted by adjusting the relative position of the first reflecting surface 10 with respect to the first focal point 200 of the second contour line of the second reflecting surface 20, flexible spatial structural arrangement of the two reflecting surfaces can be achieved with the light emitting direction maintained unchanged, thereby further improving the applicability of the optical reflection system on a vehicle.
In some embodiments, the contour of the reflective surface may include a parabola or a paraboloid. For example, as shown in fig. 5, in some embodiments according to the present disclosure, the first contour of the first reflective surface 10 and the second contour of the second reflective surface 20 are both parabolic. If a light source is disposed at the focal point 300 of the optical reflection system, the light beam emitted from the light source can be collimated in the horizontal direction after being reflected by the first reflection surface 10, and can be collimated in the vertical direction after being reflected by the second reflection surface 20.
Fig. 8A is a schematic view of an optical path of a light beam in a vertical direction of an optical reflection system according to further exemplary embodiments of the present disclosure, and fig. 8B is a schematic view of an optical path of a light beam in a horizontal direction of an optical reflection system according to further exemplary embodiments of the present disclosure. As shown in fig. 8A and 8B, in some embodiments according to the present disclosure, the first contour of the first reflective surface 10 may be parabolic, while the second contour of the second reflective surface 20 may be parabolic. The contour line of the reflecting surface of the reflector is shaped such that the light beam reflected by the reflecting surface exhibits a light diffusion angle. In the embodiment where the first reflecting surface 10 is parabolic as shown in fig. 8, the optical reflecting system is configured such that the parallel light beams are converged to one line segment or a region near the line segment after being reflected by the first reflecting surface 10 and the second reflecting surface 20. In other words, if a light source is disposed near the focal point 300 of the optical reflection system, that is, the light beam emitted from the light source is reflected by the first reflection surface 10, it can be diffused in the horizontal direction, for example, diffused at a certain diffusion angle (for example, see the angle a in fig. 8), and then reflected by the second reflection surface 20, it can be collimated in the vertical direction. Preferably, the diffusion angle in the horizontal direction is in the range between 5 ° and 60 °.
The contour line shape of each of the first and second reflection surfaces may be set such that a light diffusion angle of a light beam obtained after reflection via each of the first and second reflection surfaces changes with a change in the contour line shape of each of the first and second reflection surfaces. Therefore, the spread angle of the light beam reflected by the first reflecting surface in the horizontal direction may be adjusted by changing the shape of the first contour line of the first reflecting surface, and/or the spread angle of the light beam reflected by the second reflecting surface in the vertical direction may be adjusted by changing the shape of the second contour line of the second reflecting surface.
According to the configuration of the above-described exemplary embodiments of the present disclosure, by changing the contour line shape of one or both of the first and second reflecting surfaces, the light diffusion angle of the light beam reflected via the corresponding reflecting surface can be adjusted. Therefore, the shapes of the first reflecting surface and the second reflecting surface can be respectively set according to the requirements of the light diffusion ranges of the specific illumination light shape in the horizontal direction and the vertical direction, so that the design flexibility is improved.
Fig. 9 to 11 are optical path diagrams of an optical reflection system according to another exemplary embodiment of the present disclosure. Fig. 9 is a schematic light path diagram of an optical reflection system having a first reflector and a second reflector according to an exemplary embodiment of the present disclosure. Fig. 10 is a schematic view of an optical path of a light beam in a horizontal direction of the optical reflection system of fig. 9 according to an exemplary embodiment of the present disclosure. Fig. 11 is a schematic view of an optical path of a light beam in a vertical direction of the optical reflection system of fig. 9 according to an exemplary embodiment of the present disclosure. The differences between the optical reflection system shown in fig. 3 and the optical reflection system shown in fig. 9 are explained below.
In contrast to the exemplary embodiment shown in fig. 3, the first reflective surface 10 of the optical reflection system shown in fig. 9 is configured to collimate light in the vertical direction and the second reflective surface 20 is configured to collimate light in the horizontal direction. In the case where the focal length of the first reflecting surface is smaller than that of the second reflecting surface, according to the principle that the larger the focal length is, the smaller the imaging is, the optical reflecting system shown in fig. 9 makes the degree of diffusion of the light beam in the horizontal direction smaller than that in the vertical direction, and an illumination light shape which is narrower in the horizontal direction and wider in the vertical direction, that is, an illumination light shape which is narrower in the left-right, upper-lower, can be obtained.
In other embodiments, the focal length of the first reflective surface may be set to be greater than the focal length of the second reflective surface.
Thus, according to the optical reflection system of the present disclosure, by setting the focal length of the first reflection surface of the first reflector to be different from the focal length of the second reflector, it is possible to realize an illumination light shape having a large aspect ratio. The first reflector and the second reflector of the optical reflection system can be relatively independently constructed and arranged, the design flexibility is high, the light path trend and the diffusion range of the light beam in the horizontal direction and the vertical direction can be effectively controlled, therefore, the ideal illumination light shape can be obtained according to the needs, and meanwhile, the light distribution requirement of the national standard GB25991-2010 on the car lamp illumination device can be met.
Fig. 12 is a schematic light path diagram of a vehicle lamp lighting device according to an exemplary embodiment of the present disclosure. As shown in fig. 12, in some embodiments according to the present disclosure, the primary optical system includes a light source 80 and a third reflector (e.g., a third reflector) 701, the third reflector 701 of the primary optical system shown in fig. 12 may be an ellipsoidal or ellipsoidal-like reflector, in front of which is disposed a light shield that includes the cutoff line structure 60. The cutoff structure 60 is configured to form an illumination light shape having a cutoff line. The focal point of the optical reflection system may be disposed on the cut-off line structure 60, and the lamp lighting device correspondingly forms a low-beam lighting light shape having a cutoff line as shown in fig. 6. Preferably, the cut-off line structure 60 is arranged between the third reflector 701 and an optical reflection system comprising a first reflector and a second reflector. The primary optical system is configured to substantially concentrate the light beam emitted by the light source 80 to a focal point or focal region of the optical reflection system by the third reflector 701, and the focal point of the optical reflection system may be disposed on the cutoff line structure 60, so that an illumination light shape having a cutoff line may be formed.
Fig. 13 is a schematic light path diagram of a vehicle lamp lighting device according to another exemplary embodiment of the present disclosure, as shown in fig. 13, in some embodiments according to the present disclosure, a primary optical system of the vehicle lamp lighting device includes a light source 80 and a condenser 702. The light concentrator 702 may be a transparent light guide, and the light concentrator 702 may be configured to receive light exiting the light source 80, collimate, focus, and direct the received light to an optically reflective system. A cut-off line structure 600 is provided at a lower edge of the light emitting surface of the condenser 702, and a focal point of the optical reflection system may be provided on the cut-off line structure 600, and the lamp lighting device shown in fig. 13 may form a low beam lighting shape having a cut-off line as shown in fig. 6.
In the context of the present disclosure, a cutoff line refers to a cut-off line where a light beam is transmitted onto a light distribution screen, and a visually perceived light and shade significantly changes. Therefore, by setting the focal point of the optical reflection system on the cutoff structure 60 or 600, a low beam illumination light shape having a clear cutoff line can be obtained. As can be seen from fig. 6, the low beam pattern formed by projecting onto the light distribution screen when the lamp lighting device including the optical reflection system according to the present disclosure performs the light distribution test has an obvious cutoff line, conforms to the related regulations of the current national standard "LED headlights for automobile" (GB 25991-2010), and there is no case where a plurality of cutoff lines are visually visible.
As shown in fig. 14, in some exemplary embodiments of the present disclosure, a lamp lighting device includes a primary optical system including a plurality of light sources 800 and a third reflector 703 having a plurality of reflection surfaces, for example, the primary optical system including 5 light sources 800 and a third reflector 703 having 5 reflection surfaces, and an optical reflection system including a first reflection surface 10 and a second reflection surface 20, a focal point of the optical reflection system may be disposed on the third reflector 703 having 5 reflection surfaces, and the lamp lighting device may be capable of forming a group of ADB light shapes having 5 spots, thereby achieving high beam ADB lighting.
As shown in fig. 15, in some exemplary embodiments of the present disclosure, a vehicle lamp lighting device may include a primary optical system including a plurality of light sources 800 and a third reflector 704 having a plurality of reflective surfaces, and an optical reflection system including a plurality of first reflective surfaces and one second reflective surface 20. For example, as shown in fig. 15, the primary optical system includes 20 light sources 800 and a third reflector 704 having 20 reflecting surfaces, and the optical reflecting system includes four first reflecting surfaces 11, 12, 13 and 14 and one second reflecting surface 20. The lamp lighting device shown in fig. 15 can form lighting areas with 20 light spots (4 groups of 5 light spots each), and the 4 groups of lighting areas are overlapped in a staggered way to form an ADB light shape with narrower pixels, so that high beam ADB lighting can be realized and the light shape control precision is higher. Compared with the car light illuminating device shown in fig. 14, the car light illuminating device shown in fig. 15 can form a plurality of groups of matrix light shapes, and a plurality of pixels which are arranged side by side and connected can be formed after the plurality of groups of matrix light shapes are overlapped, so that the control precision of the high beam ADB light shape is higher. In some embodiments, the primary optical system may be configured to cooperate with the optical reflection system to form multiple sets of matrix illumination light shapes.
As shown in fig. 16, in some exemplary embodiments of the present disclosure, a lamp lighting device may include a primary optical system, which may include a light source 800 and a third reflector 705, a lower boundary of the third reflector 705 being formed with a cut-off line structure 600, and an optical reflection system, which may include a first reflection surface 10 and a second reflection surface 20, a focal point of which may be disposed on the cut-off line structure 600, and may form a low beam lighting light shape having a bright-dark cut-off line as shown in fig. 6.
The lamp lighting device of the exemplary embodiment of the present disclosure shown in fig. 17 is substantially the same as the lamp lighting device of the exemplary embodiment of the present disclosure shown in fig. 16, except that: the first reflecting surface 10 and the second reflecting surface 20 of the optical reflecting system of the lamp lighting device of the exemplary embodiment of the present disclosure shown in fig. 17 are different in arrangement position with respect to the light source. Specifically, in the embodiment shown in fig. 16, both the first and second reflectors may be disposed at an upper side of the light source 800 in the vertical direction, and the light collimated and reflected by the first and second reflectors exits above the light source. Whereas in the embodiment shown in fig. 17, both the first and second reflectors may be disposed at the lower side of the light source 800 in the vertical direction, and the light collimated and reflected by the first and second reflectors exits below the light source. Therefore, the positions of the first reflector and the second reflector relative to the light source can be designed according to the space in the body of the specific car lamp, thereby increasing the suitability of the car lamp lighting device comprising the optical reflection system, and being applicable to various types of car lamps.
In some embodiments, two reflectors may be adjacently disposed on the same side of the light source (see fig. 12 or 13). In some embodiments, two reflectors may be disposed on opposite sides of the light source (see fig. 17), thereby significantly saving installation space, improving space utilization, reducing the overall size of the optical reflection system, and thus greatly improving the applicability of a vehicle lamp lighting device including the optical reflection system on a vehicle.
Thus, the relative positions of the first reflecting surface 10 of the first reflector and the second reflecting surface 20 of the second reflector of the optical reflecting system can be flexibly adjusted and changed, thereby better adapting to the installation space of the vehicle lamp lighting device.
In some embodiments of the present disclosure, the optical reflection system for a vehicle lamp lighting device may further include a plurality of additional reflectors, for example, in some embodiments, the optical reflection system may further include a fourth reflector for adjusting parameters such as a direction of light, and the fourth reflector includes the fourth reflection surface 400. In some embodiments, the fourth reflector is a planar mirror configured to change only the direction of light. In other embodiments, the fourth reflector may be configured to have a curved shape, and the fourth reflector having a curved shape not only can change the direction of light, but also can perform light distribution again on the light, so that the light shape effect is better.
In the context of the present disclosure, light emitted from a light source may exit via an optical reflection system along the light path direction.
In some embodiments, the fourth reflector may be disposed downstream of the light source and upstream of the first reflector in the light path direction and configured to receive light emitted from the light source of the primary optical system and reflect the received light to the first reflector.
In some embodiments, a fourth reflector may be disposed between the first reflector and the second reflector and configured to receive and reflect the light collimated by the first reflector to the second reflector, where the fourth reflector serves as an additional light distribution element for further adjusting parameters such as a direction of the light, and is beneficial to re-distribute the light collimated and reflected by the first reflector to the second reflector to form an ideal illumination light shape meeting the illumination requirement.
In other embodiments, as shown in fig. 30, the fourth reflector may be disposed downstream of the second reflector along the light path direction, that is, the fourth reflecting surface 400 of the fourth reflector may be disposed downstream of the second reflecting surface 20 along the light path direction and configured to receive and reflect the light collimated and reflected by the second reflecting surface 20 to form an illumination light shape, so that the fourth reflector serves as an additional light distribution element to facilitate re-distribution of the light collimated and reflected by both the first reflector and the second reflector to form an ideal illumination light shape that meets the illumination needs.
The optical reflection system according to the above-described embodiment may include a first reflector, a second reflector, and an additional fourth reflector, wherein the first reflector, the second reflector, and the additional fourth reflector may be used to collectively form a focal point of the optical reflection system. By the configuration of the optical reflection system in the embodiment, the outgoing direction of the light rays emitted by the light source can be better regulated through multistage reflection, so that a desired light shape can be better formed. It will be appreciated that the number of reflectors and the relative positions of the reflectors may be selected according to the desired light shape and distribution requirements to be formed.
A lamp lighting device having the optical path shown in fig. 15 according to an exemplary embodiment of the present disclosure is described below with reference to fig. 18 to 29.
As shown in fig. 18-29, in some embodiments according to the present disclosure, a vehicle lamp lighting device includes a primary optical system including a light source 800 and a third reflector 700 having a plurality of reflective surfaces, and an optical reflection system including a plurality of first reflective surfaces 10 (e.g., having 6 first reflective surfaces) and one second reflective surface 20. Referring to fig. 19, the first reflecting surface 10 of the first reflector 110 has a straight line shape in a cross section taken along a longitudinal direction (vertical direction) (refer to fig. 28), and the first reflecting surface 10 of the first reflector 110 has a parabolic shape in a cross section taken along a lateral direction (horizontal direction) (refer to fig. 29). In other words, the first reflecting surface 10 of the first reflector 110 has a curved shape characterized by a parabola, which is a curved surface in which the parabola stretches along the normal direction of the plane in which the parabola lies. Thus, the first reflector 110 is a parabolic reflector and is configured to collimate light in a horizontal direction.
Referring to fig. 19, the second reflector 210 includes a second reflecting surface 20. The second reflecting surface 20 of the second reflector 210 has a parabolic shape in a cross section taken along the longitudinal direction (vertical direction) (refer to fig. 25), and the second reflecting surface 20 of the second reflector 210 has a linear shape in a cross section taken along the lateral direction (horizontal direction) (refer to fig. 26). In other words, the second reflecting surface 20 of the second reflector 210 has a curved shape characterized by a parabola, which is a curved surface in which the parabola stretches along the normal direction of the plane in which the parabola lies. Thus, the second reflector 210 is a parabolic reflector and is configured to collimate light in a vertical direction.
According to the above configuration of the exemplary embodiment of the present disclosure, since the light beam emitted from the light source is collimated and converged in two directions substantially orthogonal to each other by using the two reflectors. Compared with the existing collimating lens element, the optical reflecting system structure has simple and compact structural design, is easy to manufacture, further improves the production efficiency and has obvious cost effectiveness.
As shown in fig. 18-29, in some embodiments according to the present disclosure, the first reflective surface 10 of the first reflector 110 and the first reflective surface 20 of the second reflector 210 of the optical reflection system are realized by plating using a plating material. In some examples, the first reflective surface 10 and the second reflective surface 20 are realized by aluminizing or silvering. In some embodiments, the plating materials of the first reflective surface 10 of the first reflector 110 and the first reflective surface 20 of the second reflector 110 of the optical reflection system may include, but are not limited to: aluminum, chromium, nickel, silver, and gold.
Referring to fig. 20, the first reflector 110 and the third reflector 700 may be formed as one piece, the first reflector 110 and the second reflector 210 are separately manufactured, and the first reflector 110 and the second reflector 210 are detachably assembled in place in the lamp lighting device by fastening a connection member (e.g., screw) 33. In some embodiments, the first reflector 110 and the second reflector 210 are assembled in place in the vehicle lamp lighting device by snap-fit connection, adhesion, riveting, welding, etc., to ensure that the optical reflection system as a whole is positioned accurately within the lamp body, well-secured, and prevented from play. In other embodiments, the first reflector 110 and the second reflector 210 may be formed as an integral piece. It should be appreciated that in some embodiments, each reflector selected may be configured in a single piece, two by two, depending on the actual lamp body space, where the lighting requirements are met.
Referring to fig. 18 to 20, the vehicle lamp lighting device further includes a circuit board 31 for mounting the light source 800, and the circuit board 31 is provided with a radiator 32, and the radiator 32 can improve the heat dissipation performance of the circuit board 31, avoid the excessive temperature of the light source 800, and improve the stability of the light source 800. The third reflector 700 disposed under the light source of the primary optical system is formed as an integral structure with the first reflector 110 having the first reflecting surface 10, and the integral structure formed by the third reflector 700 and the first reflector 110 is connected with the second reflector 210 having the second reflecting surface 20, the wiring board 31, and the heat sink 32 by the fastening connection 33. Referring to the exemplary light path diagram shown in fig. 23, the light beam emitted from the light source 800 is first partially converged by the third reflector 700, then is reflected by the first reflecting surface 10 of the first reflector 110, and then is collimated in the horizontal direction, and is further collimated in the vertical direction by being reflected by the second reflecting surface 20 of the second reflector 210, and by setting the focal length of the first reflecting surface 10 to be different from that of the first reflecting surface 20, an ideal illumination light shape having a large aspect ratio can be formed according to practical needs.
The present disclosure has been described above by way of description of embodiments with reference to the accompanying drawings, but the present disclosure is not limited to the embodiments described above. It will be understood by those skilled in the art that modifications and variations can be made without departing from the technical spirit of the present disclosure, and these modifications and variations are also included in the scope of the present disclosure.
The present disclosure provides an optical reflection system for a vehicle lamp lighting device capable of achieving collimation and convergence of a light beam from a light source in two directions substantially orthogonal to each other. Compared with the existing collimating lens element, the optical reflecting system structure has simple and compact structural design, is easy to manufacture, further improves the production efficiency and has obvious cost effectiveness. According to the vehicular lamp lighting device including the optical reflection system of the present disclosure, by setting the focal length of the first reflection surface of the first reflector to be different from the focal length of the second reflector, it is possible to obtain an illumination light shape having a large aspect ratio.
Further, it is to be understood that the optical reflection system, lamp lighting device of the present disclosure is reproducible and can be applied in a variety of industrial applications. For example, the optical reflection system of the present application can be applied to a lamp lighting device that needs to form a lighting light shape having a relatively large length and width.
Claims (16)
- An optical reflection system for a vehicle lamp lighting device including a primary optical system having a light source, the optical reflection system configured to reflect light emitted from the light source of the primary optical system,wherein the optical reflection system comprises a first reflector having a first reflection surface configured to collimate light in a first direction and a second reflector having a second reflection surface configured to collimate light in a second direction orthogonal to the first direction, the first and second reflection surfaces having curved shapes characterized by contour lines, the first and second reflection surfaces being curved surfaces formed by stretching the respective contour lines along a normal direction of a plane in which the contour lines lie, the optical reflection system being configured such that: the light beam emitted from the primary optical system having the light source is reflected by the first reflector and reflected by the second reflector, and then emitted in a form of nearly parallel light, thereby forming an illumination light shape of the vehicle lamp illumination device.
- The optical reflection system of claim 1, wherein the contour line comprises a parabola or a paraboloid.
- The optical reflection system of claim 2, wherein the first direction is a horizontal direction or a vertical direction.
- The optical reflection system according to claim 1, wherein a contour line shape of each of the first reflection surface and the second reflection surface is set such that a light diffusion angle of light obtained after reflection via each of the first reflection surface and the second reflection surface changes with a change in the contour line shape of each of the first reflection surface and the second reflection surface.
- The optical reflection system according to claim 4, wherein a focal length of the first reflecting surface is set to be different from a focal length of the second reflecting surface.
- The optical reflection system of any of claims 1-5, wherein the first and second reflectors are disposed adjacent to the same side of the light source or the first and second reflectors are disposed on opposite sides of the light source.
- The optical reflection system according to any one of claims 1 to 5, wherein the primary optical system is a primary optical system having a cut-off line structure at which a focal point of the optical reflection system is disposed.
- The optical reflection system of any of claims 1-5, wherein the first reflector comprises a plurality of first reflective surfaces, the optical reflection system configured to: the light emitted from the primary optical system having the light source is reflected by the first reflector and reflected by the second reflector and then emitted in the form of a nearly parallel beam, thereby forming a matrix-type illumination light shape of the vehicle lamp illumination device.
- The optical reflection system according to any one of claims 1 to 5, wherein the first and second reflection surfaces of the optical reflection system are formed by plating using a plating material.
- The optical reflection system of claim 9, wherein the plating material of the first and second reflective surfaces is at least one of aluminum, chromium, nickel, silver, and gold.
- The optical reflection system of any of claims 1-5, wherein the first and second reflectors are manufactured separately and assembled in place in the vehicle lamp lighting device by a connecting fastener.
- The optical reflection system of any of claims 1-5, wherein the first and second reflectors are integrally formed.
- The optical reflection system of any of claims 1-5, wherein the primary optical system includes a third reflector configured to reflect and direct light from the light source to the optical reflection system.
- The optical reflection system of any one of claims 1 to 5, wherein the primary optical system comprises a condenser configured to collimate, converge and direct light from the light source to the optical reflection system, a lower edge of a light exit face of the condenser being provided with a cut-off line structure.
- The optical reflection system of any of claims 1-5, wherein the optical reflection system includes an additional fourth reflector, the first and second reflectors and the fourth reflector being configured to collectively form a focal point or focal region of the optical reflection system.
- A vehicle lamp lighting device comprising the optical reflection system according to any one of claims 1 to 15.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2021/119443 WO2023039904A1 (en) | 2021-09-18 | 2021-09-18 | Optical reflection system for vehicle lamp lighting device, and vehicle lamp lighting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117730230A true CN117730230A (en) | 2024-03-19 |
Family
ID=85602349
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202180100453.XA Pending CN117730230A (en) | 2021-09-18 | 2021-09-18 | Optical reflection system for a vehicle lamp lighting device and vehicle lamp lighting device |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP4206524A4 (en) |
| CN (1) | CN117730230A (en) |
| WO (1) | WO2023039904A1 (en) |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2086843U (en) * | 1990-03-20 | 1991-10-16 | 于仲华 | Lighting lamp set with column paraboloid and quasi-focus illuminant |
| JP4945268B2 (en) * | 2007-03-02 | 2012-06-06 | スタンレー電気株式会社 | Light recovery type vehicle lamp |
| FR2966221B1 (en) * | 2010-08-04 | 2015-09-18 | Valeo Vision | CUTTING LIGHTING MODULE WITH PARABOLIC REFLECTOR ARRANGED ON AN ELLIPTICAL REFLECTOR |
| DE102011004569A1 (en) * | 2011-02-23 | 2012-08-23 | Automotive Lighting Reutlingen Gmbh | For installation in a motor vehicle provided lighting device |
| JP2015185400A (en) * | 2014-03-25 | 2015-10-22 | スタンレー電気株式会社 | Vehicular lighting fixture |
| DE102014226646A1 (en) | 2014-12-19 | 2016-06-23 | Osram Gmbh | lighting device |
| DE102017001019A1 (en) * | 2017-02-04 | 2018-08-09 | GM Global Technology Operations LLC (n. d. Ges. d. Staates Delaware) | vehicle headlights |
| DE102018201980A1 (en) * | 2018-02-08 | 2019-08-08 | Bayerische Motoren Werke Aktiengesellschaft | Lighting device for a motor vehicle |
| EP3657066B1 (en) * | 2018-11-22 | 2020-12-30 | ZKW Group GmbH | Illumination unit for a motor vehicle headlight for generating a light distribution with a cut-off line |
| CN113587041A (en) | 2020-04-30 | 2021-11-02 | 华域视觉科技(上海)有限公司 | Optical lens, optical lens group, car light system and vehicle |
| CN212565607U (en) * | 2020-06-29 | 2021-02-19 | 华域视觉科技(上海)有限公司 | Car light optical system, car light module and vehicle |
-
2021
- 2021-09-18 EP EP21957181.7A patent/EP4206524A4/en active Pending
- 2021-09-18 WO PCT/CN2021/119443 patent/WO2023039904A1/en unknown
- 2021-09-18 CN CN202180100453.XA patent/CN117730230A/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| WO2023039904A1 (en) | 2023-03-23 |
| EP4206524A1 (en) | 2023-07-05 |
| EP4206524A4 (en) | 2024-01-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US11686446B2 (en) | Thin aspect lighting system with cutoff | |
| US8287167B2 (en) | Lamp unit | |
| JP5596282B2 (en) | Automotive lighting or signaling equipment | |
| US10655808B2 (en) | Vehicle lamp | |
| US9097401B2 (en) | Light module for motor-vehicle headlight | |
| JP7217360B2 (en) | High and low beam integrated car lamp illumination device, car lamp and vehicle | |
| US7972046B2 (en) | Vehicle lighting device | |
| US20070091630A1 (en) | Bifunctional LED headlamp | |
| CN108534078B (en) | LED array far and near light dual-function module system | |
| US9599301B2 (en) | Light module | |
| KR102611832B1 (en) | Vehicle lamp lighting modules, vehicle lamps and vehicles | |
| US10920947B2 (en) | Lighting device for a motor vehicle headlight | |
| JP2003123517A (en) | Light projecting unit and led vehicular headlamp equipped with it | |
| CN113958921A (en) | Lighting module, lighting device and vehicle | |
| US20240102621A1 (en) | Motor vehicle headlamp with multiple lighting modules on an inclined common plate | |
| CN111981431A (en) | Lighting lamp | |
| CN117730230A (en) | Optical reflection system for a vehicle lamp lighting device and vehicle lamp lighting device | |
| WO2023039903A1 (en) | Optical transflection system of vehicle lamp lighting device, and vehicle lamp lighting device | |
| CN108302447B (en) | Direct-injection type automobile headlamp module and automobile headlamp | |
| JP2023520802A (en) | Lens units, optical lenses, lighting modules, vehicle lamps and vehicles | |
| TW201432187A (en) | Light-emitting member of LED vehicle lamp and optical lens thereof | |
| TW201631279A (en) | Car lamp | |
| EP4123218B1 (en) | Multi-pixel high beam system, vehicle lamp, and vehicle | |
| WO2023097459A1 (en) | High-beam and low-beam integrated vehicle lamp optical element, and vehicle lamp module and vehicle | |
| CN212456691U (en) | Lighting lamp |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |