CN117537299A - Optical system, car lamp and vehicle - Google Patents
Optical system, car lamp and vehicle Download PDFInfo
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- CN117537299A CN117537299A CN202410026913.4A CN202410026913A CN117537299A CN 117537299 A CN117537299 A CN 117537299A CN 202410026913 A CN202410026913 A CN 202410026913A CN 117537299 A CN117537299 A CN 117537299A
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- 230000003287 optical effect Effects 0.000 title claims abstract description 176
- 238000010168 coupling process Methods 0.000 claims abstract description 123
- 238000005859 coupling reaction Methods 0.000 claims abstract description 123
- 230000008878 coupling Effects 0.000 claims abstract description 122
- 238000005286 illumination Methods 0.000 claims abstract description 80
- 230000002093 peripheral effect Effects 0.000 claims abstract description 9
- 230000006870 function Effects 0.000 description 43
- 239000000463 material Substances 0.000 description 6
- 230000009131 signaling function Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 4
- 239000004926 polymethyl methacrylate Substances 0.000 description 4
- 238000005452 bending Methods 0.000 description 3
- 230000017525 heat dissipation Effects 0.000 description 3
- 238000000149 argon plasma sintering Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
- F21S41/30—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
- 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
-
- 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
-
- 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
- F21S41/33—Multi-surface reflectors, e.g. reflectors with facets or reflectors with portions of different curvature
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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
- F21S43/20—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
-
- 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
- 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)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
The invention relates to optical equipment, discloses an optical system, a car lamp and a vehicle, wherein the optical system comprises an illumination system, a signal system and a first optical element, the illumination system comprises an illumination light source and a second optical element for collimating a first light beam of the illumination light source to the first optical element, the signal system comprises a signal light source and a third optical element for collimating a second light beam of the signal light source to the first optical element, and a reflection coupling surface of the first optical element is configured to reflect the first light beam and project the second light beam to a light emitting surface; the first optical element comprises a light entering section and a light exiting section, the light entering section comprises a light entering surface, a first reflecting surface and the reflecting coupling surface, the light entering surface is positioned on the end face of the light entering section, the light emitting surface is positioned on the end face of the light exiting section, the reflecting coupling surface is arranged on the outer peripheral surface of the light entering section, the first reflecting surface is arranged on the outer peripheral surface of the light entering section opposite to the reflecting coupling surface, and the light entering surface is configured to enable the first light beam to be reflected to the reflecting coupling surface by the first reflecting surface. The lighting function and the signal lamp function of the common luminous surface are realized.
Description
Technical Field
The present invention relates to an optical apparatus, and in particular, to an optical system. In addition, the invention also relates to a car lamp and a vehicle.
Background
In recent years, the technology of electric automobiles is rapidly developed, and the automobile lamps suitable for the electric automobiles also face new challenges. Compared with the traditional fuel automobile, the automobile lamp model, the automobile lamp power consumption, the light performance of the automobile lamp and the like of the electric automobile are obviously changed, for example, the integral model of the electric automobile is more fashionable, the light emitting opening is obviously reduced, different light functions share a light emitting area to become a main stream scheme, wherein the lighting functions and the signal lamp functions are organically combined, the two share the light emitting surface, and the technical path of the lighting module along with the lighting of the signal lamp functions becomes a lower hot spot.
The lighting module is mainly used for road surface illumination in dark environment, generally can not keep a lighting state in daytime, and light rays emitted by the light sources need to be converged so as to allow a road far in front of a vehicle to be brightly illuminated. The signal lamp is mainly used for providing vehicle running information for other traffic participants, light rays emitted by the light source need to be diffused at a large angle, so that the other traffic participants can conveniently and timely obtain the vehicle running information, and if the lighting module and the signal lamp are simply integrated together for use, the lighting function and the signal lamp function can not be well met at the same time.
Therefore, how to share a lighting area with a signal lamp function has become a technical problem to be solved in the art.
Disclosure of Invention
The object of the present invention is to provide an optical system which can realize a lighting function and a signal lamp function sharing a light emitting surface. The second object of the present invention is to provide a vehicle lamp. It is a further object of the present invention to provide a vehicle.
In order to achieve the above object, a first aspect of the present invention provides an optical system including an illumination system, a signal system, and a first optical element, the illumination system including an illumination light source and a second optical element, the second optical element being configured to be capable of collimating a first light beam emitted from the illumination light source toward the first optical element, the signal system including a signal light source and a third optical element, the third optical element being configured to be capable of collimating a second light beam emitted from the signal light source toward the first optical element, a reflective coupling surface of the first optical element being configured to be capable of reflecting the first light beam to a light emitting surface and projecting the second light beam to the light emitting surface, the first optical element including an incident light segment and an exit light segment, the incident light segment including an incident light surface, a first reflective surface and the reflective coupling surface being located on an end surface of the exit light segment, the reflective coupling surface being located on an outer peripheral surface of the incident light segment, the reflective coupling surface being configured to be capable of reflecting the first light beam toward the reflective surface, and the first reflective coupling surface being configured to be capable of reflecting the incident light beam.
In some embodiments, the light-in section and the light-out section are connected to form a V-shaped structure.
In some embodiments, the reflective coupling surfaces include a plurality of second reflective surfaces and a plurality of coupling surfaces, each of the second reflective surfaces and each of the coupling surfaces being alternately connected in turn.
In some embodiments, the energy output ψ1 of the illumination source is proportional to S1/(s1+s2), and the energy output ψ2 of the signal source is proportional to S2/(s1+s2), where S1 is the effective light reflecting area of the second reflecting surface and S2 is the effective light transmitting area of the coupling surface.
In some embodiments, a scattering layer is disposed on the second reflective surface and/or the coupling surface.
In some embodiments, a first included angle a is formed between the second reflecting surface and the light emergent direction, and the first included angle a is more than or equal to 30 degrees and less than or equal to 45 degrees; a second included angle b is formed between the coupling surface and the light emergent direction, and the second included angle b is more than or equal to 0 degree and less than or equal to 90 degrees.
In some embodiments, the second reflective surface is a planar or cambered surface and the coupling surface is a planar or cambered surface.
In some embodiments, the second optical element comprises a mirror or collimator and the third optical element comprises a mirror or collimator.
In some embodiments, the second optical element includes a first mirror configured to reflect the first light beam emitted by the illumination source toward the lens, and a lens configured to collimate the first light beam reflected by the first mirror toward the first optical element.
In some embodiments, the third optical element is a second mirror.
In some embodiments, the third optical element includes a first collimator having a third reflective surface disposed thereon, the third reflective surface being disposed on a side of the signal light source opposite the illumination light source, the third reflective surface being configured to collimate a second light beam emitted by the signal light source toward the reflective coupling surface.
In some embodiments, the third optical element includes a second collimator having a fourth reflective surface disposed thereon, the fourth reflective surface being disposed on a side of the signal light source facing the illumination light source, the fourth reflective surface being configured to collimate a second light beam emitted by the signal light source toward the reflective coupling surface.
In some embodiments, the illumination source and the signal source face away from the light; or the illumination light source and the signal light source emit light in the same direction.
In some embodiments, the lighting device further comprises a circuit board and a heat sink, the lighting light source and the signal light source are both arranged on the circuit board, and the circuit board is mounted on the heat sink.
A second aspect of the present invention provides a vehicle lamp provided with the optical system described above.
In some embodiments, the first optical element is sleeved with a shade ring.
A third aspect of the present invention provides a vehicle provided with the lamp described above.
Through above-mentioned technical scheme, adopt first optical element, first optical element is provided with the reflection coupling face, can reflect the first light beam that illumination source sent to the light-emitting surface, can throw the second light beam that signal source sent to the light-emitting surface simultaneously for illumination function and signal lamp function can share same light-emitting surface, moreover, can satisfy respective optical performance requirement again.
Additional features and advantages of the invention will be set forth in the detailed description which follows.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view showing the structure of an optical system in a first embodiment of the present invention;
FIG. 2 is a schematic structural view of a first embodiment of a reflective coupling surface in the present invention;
FIG. 3 is a schematic diagram of a second embodiment of a reflective coupling surface in accordance with the present invention;
FIG. 4 is a schematic view of an optical system in a second embodiment of the invention;
fig. 5 is a schematic structural view of an optical system in a third embodiment of the present invention.
Description of the reference numerals
1-a circuit board; 21-a second optical element; 22-a third optical element; 31-an illumination source; 32-a signal light source; 4-a heat sink; 5-cooling fins; 6-lens; 7-a first optical element; 71-a light incident surface; 72-a first reflective surface; 73-a reflective coupling surface; 731-a second reflective surface; 732-coupling surfaces; 74-a light emitting surface; 8-shielding decorative rings; 91-a third reflective surface; 92-fourth reflecting surface.
Detailed Description
Embodiments of the present invention are described in further detail below with reference to the accompanying drawings and examples. The following detailed description of the embodiments and the accompanying drawings are provided to illustrate the principles of the invention and are not intended to limit the scope of the invention, which may be embodied in many different forms and not limited to the specific embodiments disclosed herein, but rather to include all technical solutions falling within the scope of the claims.
These embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. It should be noted that: the relative arrangement of parts and steps, the composition of materials, numerical expressions and numerical values set forth in these embodiments should be construed as exemplary only and not limiting unless otherwise specifically stated.
It should be noted that, for convenience of description and simplification of the description, the orientation of the optical system of the present invention may be defined with reference to the light emitting direction, for example, the front-rear direction is positioned along the light emitting direction, as shown in fig. 1, the first optical element 7 is in front, and the illumination system and the signal system are in rear, respectively; the illumination system is above, and correspondingly, the signal system is below; the two sides of the light emitting direction are left and right directions. In the description of the present invention, the orientation or positional relationship is indicated merely for convenience of describing the present invention and simplifying the description, and does not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention. When the absolute position of the object to be described is changed, the relative positional relationship may be changed accordingly.
Furthermore, the use of the terms "comprising," "including," or the like herein, are intended to cover a listed element as being followed by another element when used in this specification, but do not exclude the possibility of other elements being so covered.
It should also be noted that, in the description of the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present invention can be understood as appropriate by those of ordinary skill in the art. When a particular device is described as being located between a first device and a second device, there may or may not be an intervening device between the particular device and either the first device or the second device.
All terms used herein have the same meaning as understood by one of ordinary skill in the art to which the present invention pertains, unless specifically defined otherwise. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the techniques, methods, and apparatus should be considered part of the specification.
As shown in fig. 1 to 5, an embodiment of the present invention provides an optical system including an illumination light source 31 and a second optical element 21, a signal system including a signal light source 32 and a third optical element 22, and a first optical element 7, the second optical element 21 being configured to collimate a first light beam emitted from the illumination light source 31 toward the first optical element 7, the signal system including a signal light source 32 and a third optical element 22, the third optical element 22 being configured to collimate a second light beam emitted from the signal light source 32 toward the first optical element 7, a reflective coupling surface 73 of the first optical element 7 being configured to reflect the first light beam toward a light emitting surface 74 and to project the second light beam toward the light emitting surface 74.
Based on the above technical scheme, the reflective coupling surface 73 of the first optical element 7 is arranged on the optical path of the lighting system and the optical path of the signal system, the reflective coupling surface 73 can reflect the first light beam emitted by the lighting source 31 to the light emitting surface 74, and can project the second light beam emitted by the signal source 32 to the light emitting surface 74, so that the lighting system and the signal system share the same light emitting surface 74, and on the basis of meeting the respective optical performance requirements, the lighting function and the signal function share the same light emitting surface 74, thereby being in compliance with the development of the vehicle lamp technology. The light emitting surface 74 is uniformly lighted, and the defects such as dark areas and bright spots are avoided.
In some embodiments, the illumination light source 31 and the signal light source 32 may be single chip LED light sources or multi-chip LED light sources. Alternatively, the illumination light source 31 and the signal light source 32 may be other light sources, such as a laser light source.
In some embodiments, as shown in fig. 1, 4 and 5, the first optical element 7 includes a light-in section and a light-out section, where the light-in section and the light-out section are connected to form a V-shaped structure, the light-emitting surface 74 is located on an end surface of the light-out section, and the reflective coupling surface 73 is located on an outer peripheral surface of the light-in section. Thus, the first light beam and the second light beam share the same light emitting surface 74 via the reflective coupling surface 73 by the V-shaped structure of the light entrance section and the light exit section.
Further, the light-entering section includes a light-entering surface 71, a first reflecting surface 72 and a reflecting coupling surface 73, the light-entering surface 71 is located on an end surface of the light-entering section, the first reflecting surface 72 is also located on an outer peripheral surface of the light-entering section, and the first reflecting surface 72 is disposed opposite to the reflecting coupling surface 73. For example, the light entrance section has a circular cross section, and the first reflecting surface 72 is located on the outer peripheral surface of the upper half of the light entrance section. Accordingly, the reflective coupling surface 73 is located on the outer peripheral surface of the lower half of the light-entering section. Alternatively, the cross section of the light entry segment is rectangular, and the first reflective surface 72 is located on the upper side of the light entry segment. Accordingly, the reflective coupling surface 73 is located on the underside of the light entry section. The light incident surface 71 is configured to be capable of refracting the first light beam toward the first reflecting surface 72, the first reflecting surface 72 is configured to be capable of reflecting the first light beam toward the reflective coupling surface 73, and the reflective coupling surface 73 is configured to be capable of reflecting the first light beam toward the light emitting surface 74 of the light emitting section. The shape of the cross section of the light exit section may be identical to the shape of the cross section of the light entry section. The shape of the cross section of the light emitting section and the shape of the cross section of the light entering section can also be set as required, and the application is not limited thereto. As shown in fig. 1, fig. 4, and fig. 5, the light incident surface 71 is located on the rear end surface of the light incident section, so that the illumination system and the signal system can be arranged along the front-rear direction, and the first reflective surface 72 is arranged opposite to the reflective coupling surface 73, so that the first light beam is first refracted by the light incident surface 71 to the first reflective surface 72, and then reflected by the first reflective surface 72 to the reflective coupling surface 73, so that the size of the first optical element 7 in the up-down direction is smaller, that is, the space required to be occupied by the first optical element 7 in the up-down direction is smaller.
As a structural form of the reflective coupling surface 73, as shown in fig. 2, the reflective coupling surface 73 includes a plurality of second reflective surfaces 731 and a plurality of coupling surfaces 732, and each of the second reflective surfaces 731 and each of the coupling surfaces 732 are alternately connected in sequence. In the present embodiment, the reflective coupling surface 73 forms a set of three-dimensional structural surfaces which are precisely calculated, and one of the functions is to reflect the first light beam from the illumination light source 31 to the light emitting surface 74 in a predetermined direction by utilizing the principle of total reflection inside the dense medium, so as to realize a predetermined illumination optical performance, such as a low beam function or a high beam function; the second function is to utilize the refraction principle that occurs when light enters the optical dense medium from the optical sparse medium, and the second light beam from the signal light source 32 is refracted through the coupling surface 732 according to the given direction and the diffusion angle, enters the first optical element 7 and is output from the light emitting surface 74, so that the optical performance of the given signal lamp function, such as a fog lamp, a width indicating lamp, a turn signal lamp and other vehicle signal lamps, is realized. The second reflecting surface 731 has a first angle a with the light emitting direction, where the first angle a satisfies 30 ° or more and 45 ° or less, and by adjusting the first angle a, the first light beam from the first reflecting surface 72 can be reflected and emitted in a predetermined direction. The coupling surface 732 has a second included angle b with the light emitting direction, and the second included angle b satisfies 0 ° < b+.ltoreq.90°. Effectively realizes the sharing of the luminous surface 74 between the lighting system and the signal system, and can meet the requirements of the lighting system and the signal systemThe number system requires respective optical performance requirements. The second reflecting surface 731 has a height h1 in a direction perpendicular to the light emitting direction, and the coupling surface 732 has a height h2 in a direction perpendicular to the light emitting direction. Because the light distribution requirements of the lighting function and the signal function are obviously different, the output performance of the light source used by each function can be combined according to the light distribution requirement difference, and the optical output performance requirements under different conditions can be met. In the optical design, parameters such as a, b, h1, h2 and the like can be flexibly adjusted according to the light distribution requirement, namely, the proportion of the effective reflective area S1 of the second reflective surface 731 to the effective light transmission area S2 of the coupling surface 732 is adjusted. Energy output of the illumination source 31，/>Means that ψ1 is proportional to S1/(S1+S2), the energy output of the signal light source 32 +.>，/>The ratio of ψ2 to S2/(s1+s2), the effective reflective area S1 of the second reflective surface 731, the product of h1 and the width of the second reflective surface 731 in the lateral direction of the light extraction direction, and the effective transmissive area S2 of the coupling surface 732, the product of h2 and the width of the coupling surface 732 in the lateral direction of the light extraction direction are shown as the ratio. In general, the width of the second reflecting surface 731 in the left-right direction of the light emitting direction is substantially the same as the width of the coupling surface 732 in the left-right direction of the light emitting direction. Thus, the energy output ψ1 of the illumination source 31 is proportional to h1, i.e. the energy output +.>，/>Means that ψ1 is directly proportional to h 1/(h1+h2), the larger the h1 ratio, the higher ψ1; the energy output ψ2 of the signal light source 32 is proportional to h2, i.e. the energy output of the signal light source 32，/>It is meant that ψ2 is directly proportional to h 2/(h1+h2), the larger the h2 ratio, the higher ψ2. Thereby realizing the energy output duty ratio of the modulation and distribution lighting system and the signal system and realizing various output effects.
As another structural form of the reflective coupling surface 73, as shown in fig. 3, the reflective coupling surface 73 includes a plurality of second reflective surfaces 731 and a plurality of coupling surfaces 732, and each of the second reflective surfaces 731 and each of the coupling surfaces 732 are alternately connected in sequence. In the present embodiment, the reflective coupling surface 73 forms a set of three-dimensional structural surfaces which are precisely calculated, and one of the functions is to reflect the first light beam from the illumination light source 31 to the light emitting surface 74 in a predetermined direction by utilizing the principle of total reflection inside the dense medium, so as to realize a predetermined illumination optical performance, such as a low beam function or a high beam function; the second function is to reflect the second light beam from the signal light source 32 to the coupling surface 732 via one second reflection surface 731, reflect the second light beam via the coupling surface 732, reflect the second light beam via the adjacent second reflection surface 731, and output the second light beam from the light emitting surface 74, thereby realizing the optical performance of the predetermined signal lamp function, such as a fog lamp, a wide-range lamp, a turn lamp, and other vehicle signal lamps. The second reflecting surface 731 has a first angle a with the light emitting direction, and the first angle a is more than or equal to 30 degrees and less than or equal to 45 degrees. By adjusting the first angle a, the first light beam from the first reflecting surface 72 can be reflected and emitted in a predetermined direction, which is different from the embodiment of fig. 2 in that the coupling surface 732 has a second angle b with respect to the light emitting direction, and b is 0 °, that is, the coupling surface 732 is parallel to the horizontal direction, in this case, the second light beam from the signal light source 32 needs to be reflected by the first reflecting surface 72 to the corresponding coupling surface 732, and then reflected by the first reflecting surface 72 below the coupling surface 732 to the light emitting surface 74, so as to realize the optical performance of the predetermined signal lamp function. The luminous surface 74 is effectively shared by the lighting system and the signal system, and the respective optical performance requirements of the lighting system and the signal system can be met. Moreover, with respect to the embodiment of FIG. 2 described above, a diagramThe reflective coupling surface 73 shown in fig. 3 has a smaller dimension in the up-down direction so that the overall structure can be arranged more compactly. The second reflecting surface 731 has a height h in a direction perpendicular to the light emitting direction, and the coupling surface 732 has a length w in a direction parallel to the horizontal direction. Because the light distribution requirements of the lighting function and the signal function are obviously different, the output performance of the light source used by each function can be combined according to the light distribution requirement difference, and the optical output performance requirements under different conditions can be met. In the optical design, parameters such as a, b, h, w and the like can be flexibly adjusted according to the light distribution requirement, namely, the ratio of the effective reflective area S1 of the second reflecting surface 731 to the effective transmissive area S2 of the coupling surface 732 is adjusted, and the energy output of the illumination light source 31，/>Means that ψ1 is proportional to S1/(S1+S2), the energy output of the signal light source 32 +.>，/>Meaning that ψ2 is proportional to S2/(S1+S2), the effective reflective area S1 of the second reflecting surface 731 is the product of h and the width of the second reflecting surface 731 in the left-right direction of the light exit direction, the effective transmissive area S2 of the coupling surface 732 is the product of w and the width of the coupling surface 732 in the left-right direction of the light exit direction, and in general, the width of the second reflecting surface 731 in the left-right direction of the light exit direction is substantially the same as the width of the coupling surface 732 in the left-right direction of the light exit direction, and therefore the energy output ψ1 of the illumination light source 31 is proportional to h, i.e. the energy output of the illumination light source 31，/>Means that ψ1 is directly proportional to h/(h+w), the larger the h ratio, the higher ψ1; energy output of the signal light source 32ψ2 is proportional to w, i.e. the energy output of signal light source 32 +.>，/>Meaning that ψ2 is directly proportional to w/(h+w), the larger the w ratio, the higher ψ2. Thereby realizing the energy output duty ratio of the modulation and distribution lighting system and the signal system and realizing various output effects.
In some embodiments, a scattering layer is disposed on the second reflective surface 731. The scattering layer can be in different forms of optical patterns, dermatoglyph or scattering materials to meet various lighting and light distribution requirements, for example, the scattering layer can be in an optical pattern formed by a series of sequentially arranged strip-shaped bulges, or in an dermatoglyph formed by array-arranged bulges, or the scattering layer is prepared by adopting polymethyl methacrylate (PMMA) base light scattering materials.
Likewise, a scattering layer may be disposed on the coupling surface 732. The scattering layer can be in different forms of optical patterns, dermatoglyph or scattering materials to meet various lighting and light distribution requirements, for example, the scattering layer can be in an optical pattern formed by a series of sequentially arranged strip-shaped bulges, or in an dermatoglyph formed by array-arranged bulges, or the scattering layer is prepared by adopting polymethyl methacrylate (PMMA) base light scattering materials.
In some embodiments, the second reflective surface 731 and the coupling surface 732 may be planar or curved surfaces.
In some embodiments, the second optical element 21 and the third optical element 22 may comprise mirrors or collimators.
In some embodiments, as shown in fig. 1, the second optical element 21 comprises a first mirror and a lens 6, and the third optical element 22 is a second mirror. The first reflecting mirror can collimate the first light beam emitted from the illumination light source 31 toward the lens 6, the lens 6 reflects the first light beam toward the light incident surface 71 of the first optical element 7, the first light beam enters the first optical element 7, and is reflected by the first reflecting surface 72 toward the reflective coupling surface 73, and the reflective coupling surface 73 reflects the first light beam toward the light emitting surface 74. The third optical element 22 is capable of collimating the second light beam emitted by the signal light source 32 towards the reflective coupling surface 73 of the first optical element 7, and then the second light beam is refracted towards the light emitting surface 74. So that the lighting system shares the light emitting surface 74 with the signal system and can meet the respective optical performance requirements of the lighting system and the signal system. Further, still include circuit board 1 and radiator 4, illumination light source 31 arranges at the upper surface of circuit board 1 and signal light source 32 arranges at the lower surface of circuit board 1, illumination light source 31 and signal light source 32 back to the light-emitting, and circuit board 1 installs on radiator 4, can set up the through-hole on radiator 4, makes things convenient for signal light source 32 to install the lower surface at circuit board 1, is provided with fin 5 on the radiator 4. The whole structure is compact, and the illumination light sources 31 and the signal light sources 32 are distributed and arranged, so that heat dissipation is facilitated.
In some embodiments, as shown in fig. 4, the second optical element 21 comprises a first mirror and lens 6, and the third optical element 22 may be a first collimator. The first reflecting mirror can collimate the first light beam emitted from the illumination light source 31 toward the lens 6, the lens 6 reflects the first light beam toward the light incident surface 71 of the first optical element 7, the first light beam enters the first optical element 7, and is reflected by the first reflecting surface 72 toward the reflective coupling surface 73, and the reflective coupling surface 73 reflects the first light beam toward the light emitting surface 74. A third reflecting surface 91 is disposed below the rear end of the first collimator, the third reflecting surface 91 is disposed on a side of the signal light source 32 opposite to the illumination light source 31, the third reflecting surface 91 uses the principle of total reflection inside the optical dense medium to collimate and reflect the second light beam emitted from the signal light source 32 and refracted into the third optical element 22 toward the reflective coupling surface 73, and then the second light beam is refracted toward the light emitting surface 74. The lighting system and the signal system share the luminous surface 74, and the respective optical performance requirements of the lighting system and the signal system can be met; the third optical element 22 is a first collimator, and can better converge the second light beam emitted by the signal light source 32, so that the optical utilization rate is better. The first collimator may have a substantially elongated cross-sectional shape, and may have an arc shape at a rear end of the elongated shape, and the arc shape may be configured as the third reflecting surface 91. Further, still include circuit board 1 and radiator 4, illumination light source 31 arranges at the upper surface of circuit board 1 and signal light source 32 arranges at the lower surface of circuit board 1, illumination light source 31 and signal light source 32 back to the light-emitting, and circuit board 1 installs on radiator 4, can set up the through-hole on radiator 4, makes things convenient for signal light source 32 to install the lower surface at circuit board 1, is provided with fin 5 on the radiator 4. The whole structure is compact, and the illumination light sources 31 and the signal light sources 32 are distributed and arranged, so that heat dissipation is facilitated.
In some embodiments, as shown in fig. 5, the second optical element 21 comprises a first mirror and a lens 6, and the third optical element 22 is a second collimator. The first reflecting mirror can collimate the first light beam emitted from the illumination light source 31 toward the lens 6, the lens 6 reflects the first light beam toward the light incident surface 71 of the first optical element 7, the first light beam enters the first optical element 7, and is reflected by the first reflecting surface 72 toward the reflective coupling surface 73, and the reflective coupling surface 73 reflects the first light beam toward the light emitting surface 74. A fourth reflecting surface 92 is provided above the rear end of the second collimator, the fourth reflecting surface 92 being arranged on the side of the signal light source 32 facing said illumination light source 31, the fourth reflecting surface 92 collimating and reflecting the second light beam emitted by the signal light source 32 and refracted into the third optical element 22 towards the reflective coupling surface 73 by means of the principle of total reflection inside the optical dense medium, the second light beam then being refracted towards the light emitting surface 74. The lighting system and the signal system share the luminous surface 74, and the respective optical performance requirements of the lighting system and the signal system can be met; the third optical element 22 is a second collimator, and can better converge the second light beam emitted by the signal light source 32, so that the optical utilization rate is better. The second collimator may be a bending structure, a condenser is disposed below the rear end of the bending structure, a fourth reflecting surface 92 is formed above the rear end of the bending structure, and the second light beam emitted by the signal light source 32 is converged by the condenser and then is emitted to the fourth reflecting surface 92, so that the arrangement space in the vertical direction can be saved to a certain extent. Further, the circuit board 1 and the radiator 4 are further included, the illumination light source 31 and the signal light source 32 are respectively arranged on the two different circuit boards 1, the illumination light source 31 and the signal light source 32 emit light in the same direction, the circuit board 1 provided with the illumination light source 31 is arranged on the radiator 4, and the circuit board 1 provided with the signal light source 32 can be arranged at other positions or on the radiator 4. The heat sink 4 is provided with heat radiating fins 5. The whole structure is compact, and the illumination light sources 31 and the signal light sources 32 are distributed and arranged, so that heat dissipation is facilitated.
It should be noted that the second optical element 21 is not limited to the above-mentioned mirror, and may be other optical elements, such as a collimator.
In order to better understand the technical idea of the present invention, the following description is made in connection with relatively comprehensive technical features.
As shown in fig. 1 to 5, a preferred embodiment of the present invention provides an optical system comprising an illumination system, a signal system and a first optical element 7, the illumination system comprising an illumination light source 31 and a second optical element 21, the second optical element 21 comprising a lens 6 and a mirror or lens 6 and a collimator, the mirror or collimator being configured to collimate a first light beam emitted by the illumination light source 31 towards the lens 6 and then be refracted towards the first optical element 7 by the lens 6, the signal system comprising a signal light source 32 and a third optical element 22, the third optical element 22 being a mirror or collimator, the third optical element 22 being configured to collimate a second light beam emitted by the signal light source 32 towards the first optical element 7, the first optical element 7 comprising an entrance section and an exit section, the front end of the entrance section and the rear end of the exit section being connected to form a V-shaped structure, the front end of the exit section being formed as a light emitting surface 74, the rear end of the entrance section being formed as a light entrance surface 71, the entrance section being provided on its outer circumferential surface with a first reflecting surface 72 and a reflecting coupling surface 73, the first reflecting surface 73 being arranged opposite to the reflecting surface 73. The reflective coupling surface 73 includes a plurality of second reflective surfaces 731 and a plurality of coupling surfaces 732, where each second reflective surface 731 and each coupling surface 732 are sequentially and alternately connected, so that the reflective coupling surface 73 forms a set of three-dimensional structural surfaces that are precisely calculated, and one of the functions is to reflect the first light beam from the illumination light source 31 in a given direction to the light emitting surface 74 and output the first light beam by using the principle of total reflection inside the light tight medium, so as to implement a given illumination optical performance, such as a low beam function or a high beam function; the second function is to utilize the refraction principle that occurs when light enters the optical dense medium from the optical sparse medium, and the second light beam from the signal light source 32 is refracted through the coupling surface 732 to enter the first optical element according to the preset direction and the diffusion angle7 and is output from the light emitting surface 74, and each of the second reflecting surface 731 and each of the coupling surfaces 732 is provided with a scattering layer for realizing optical performance of a predetermined signal function, such as a vehicle signal such as a fog lamp, a wide light, a turn signal, etc. As a structural form of the reflective coupling surface 73, a first included angle a is formed between the second reflective surface 731 and the light emergent direction, the first included angle a is more than or equal to 30 degrees and less than or equal to 45 degrees, the first light beam from the first reflective surface 72 can be reflected and emergent in a given direction by adjusting the first included angle a, a second included angle b is formed between the coupling surface 732 and the light emergent direction, and the second included angle b is more than or equal to 0 degrees and less than or equal to 90 degrees. The height of the second reflecting surface 731 in the direction perpendicular to the light emitting direction is h1, and the height of the coupling surface 732 in the direction perpendicular to the light emitting direction is h2, so that the light distribution requirements of the illumination function and the signal function are generally obviously different, and the output performance of the light sources used for each function can be combined according to the light distribution requirement difference, so that the optical output performance requirements under different conditions can be met. In the optical design, parameters such as a, b, h1 and h2 can be flexibly adjusted according to the light distribution requirement, namely, the ratio of the effective reflective area S1 of the second reflective surface 731 to the effective transmissive area S2 of the coupling surface 732 is adjusted, and the energy output of the illumination source 31Energy output of the signal light source 32The effective reflective area S1 of the second reflective surface 731 is the product of h1 and the width of the second reflective surface 731 in the left-right direction of the light exit direction, the effective transmissive area S2 of the coupling surface 732 is the product of h2 and the width of the coupling surface 732 in the left-right direction of the light exit direction, and generally, the width of the second reflective surface 731 in the left-right direction of the light exit direction is substantially the same as the width of the coupling surface 732 in the left-right direction of the light exit direction, so that the energy output ψ1 of the illumination light source 31 is proportional to h1, i.e., the energy output of the illumination light source 31 is proportional to>The larger the h1 ratio, the higher ψ1; the energy output ψ2 of the signal light source 32 is proportional to h2, i.e. the energy of the signal light source 32Output->The larger the h2 ratio, the higher ψ2. Alternatively, as another structural form of the reflective coupling surface 73, the second reflective surface 731 has a first included angle a with the light emitting direction, where the first included angle a satisfies 30 ° or more and 45 ° or less, and by adjusting the first included angle a, the first light beam from the first reflective surface 72 can be reflected and emitted in a predetermined direction, which is different from the embodiment of fig. 2 described above in that the coupling surface 732 has a second included angle b with the light emitting direction, where the second light beam from the signal light source 32 needs to be reflected by the first reflective surface 72 toward the corresponding coupling surface 732 and then reflected by the first reflective surface 72 below the coupling surface 732 toward the light emitting surface 74, so as to implement the optical performance of the predetermined signal lamp function. The second reflecting surface 731 has a height h in a direction perpendicular to the light emitting direction, and the coupling surface 732 has a length w in a direction parallel to the horizontal direction. Because the light distribution requirements of the lighting function and the signal function are obviously different, the output performance of the light source used by each function can be combined according to the light distribution requirement difference, and the optical output performance requirements under different conditions can be met. In the optical design, parameters such as a, b, h, w and the like can be flexibly adjusted according to the light distribution requirement, namely, the proportion of the effective reflective area S1 of the second reflecting surface 731 to the effective light transmission area S2 of the coupling surface 732 is adjusted, and the energy output of the illumination light source 31 is equal to the energy output>Energy output of the signal light source 32The effective reflective area S1 of the second reflective surface 731 is the product of h and the width of the second reflective surface 731 in the left-right direction of the light exit direction, the effective transmissive area S2 of the coupling surface 732 is the product of w and the width of the coupling surface 732 in the left-right direction of the light exit direction, and generally the width of the second reflective surface 731 in the left-right direction of the light exit direction is substantially the same as the width of the coupling surface 732 in the left-right direction of the light exit direction, so that the energy outputs ψ1 and h of the illumination light source 31 are positiveThe ratio, i.e. the energy output of the illumination source 31 +.>The larger the h-ratio, the higher ψ1; the energy output ψ2 of signal light source 32 is proportional to w, i.e. the energy output of signal light source 32 +.>The larger the w-duty cycle, the higher ψ2. Thereby realizing the energy output duty ratio of the modulation and distribution lighting system and the signal system and realizing various output effects. The second reflecting surface 731 and the coupling surface 732 may be planar or curved surfaces. The illumination light source 31 and the signal light source 32 are arranged on the circuit board 1, the circuit board 1 is mounted on the radiator 4, and the radiator 4 is provided with the radiating fin 5. The first optical element 7 may be a thick-wall refractor, which refers to a transparent optical element having a thickness of more than 10 mm.
When the illumination function is required, the first light beam from the illumination light source 31 is reflected and converged by the second optical element 21, collimated into parallel light by the lens 6, directly enters the first optical element 7 through the light incident surface 71, is reflected and deflected by the first reflecting surface 72, irradiates the reflective coupling surface 73, is reflected by the second reflecting surface 731 on the reflective coupling surface 73 to the light emitting surface 74, and is output through the light emitting surface 74, and the whole system is mainly used for road illumination. When the signal lamp function is needed, the illumination light source 31 can be turned off, i.e. the illumination system is turned off, the second light beam from the signal light source 32 is collected and reflected by the third optical element 22, and becomes parallel light to irradiate the reflective coupling surface 73, then enters the first optical element 7 through the coupling surface 732 on the reflective coupling surface 73, and finally is output through the light emitting surface 74, and at this time, the whole system is mainly used for realizing the predetermined signal lamp function.
As can be seen from the above technical solution, the optical system of the present invention can realize that the illumination system and the signal system share the light emitting surface 74 under the condition of meeting the respective optical performance requirements. The lighting system and the signal system share the light emitting surface 74 to present a uniform lighting effect without defects such as dark areas, bright spots, and the like. The optical system has simple structure and high design flexibility, and the parameters of the second reflecting surface 731 and the coupling surface 732 of the reflecting coupling surface 73 can be flexibly adjusted to modulate the duty ratio of the energy output according to the respective light distribution requirements, so that the optical output performance requirements under different conditions can be met. The second reflecting surface 731 and the coupling surface 732 are provided with scattering layers, for example, different optical patterns, dermatoglyph or scattering materials can be selected to meet various lighting and light distribution requirements. The optical system of the present invention can achieve excellent performance with a relatively simple structure and conventional processing quality. The optical system organically combines the lighting function and the signal lamp function, so that the lighting function and the signal lamp function share the luminous surface 74, which is an important technical path for realizing the lighting of the lighting system along with the lighting of the signal lamp system, and simultaneously provides an ideal choice for meeting the requirements of complex modeling and high-difficulty light distribution.
The embodiment of the invention also provides a car lamp, which is provided with the optical system in each embodiment. As shown in fig. 1, the first optical element 7 is sleeved with a shielding decorative ring 8.
The embodiment of the invention also provides a vehicle, which is provided with the vehicle lamp in each embodiment.
The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings, but the present invention is not limited thereto. Within the scope of the technical idea of the invention, a number of simple variants of the technical solution of the invention are possible, including combinations of individual specific technical features in any suitable way. The various possible combinations of the invention are not described in detail in order to avoid unnecessary repetition. Such simple variations and combinations are likewise to be regarded as being within the scope of the present disclosure.
Claims (17)
1. An optical system comprising an illumination system, a signal system and a first optical element (7), the illumination system comprising an illumination light source (31) and a second optical element (21), the second optical element (21) being configured to be able to collimate a first light beam emitted by the illumination light source (31) towards the first optical element (7), the signal system comprising a signal light source (32) and a third optical element (22), the third optical element (22) being configured to be able to collimate a second light beam emitted by the signal light source (32) towards the first optical element (7), a reflective coupling surface (73) of the first optical element (7) being configured to be able to reflect the first light beam towards a light emitting surface (74) and to be able to project the second light beam towards the light emitting surface (74),
the first optical element (7) comprises a light entering section and a light exiting section, the light entering section comprises a light entering surface (71), a first reflecting surface (72) and a reflecting coupling surface (73), the light entering surface (71) is located on the end face of the light entering section, the light emitting surface (74) is located on the end face of the light exiting section, the reflecting coupling surface (73) is located on the outer peripheral surface of the light entering section, the first reflecting surface (72) is located on the outer peripheral surface of the light entering section and is opposite to the reflecting coupling surface (73), the light entering surface (71) is configured to be capable of refracting the first light beam to the first reflecting surface (72), and the first reflecting surface (72) is configured to be capable of reflecting the first light beam to the reflecting coupling surface (73).
2. The optical system of claim 1, wherein the light entry segment and the light exit segment are connected to form a V-shaped structure.
3. An optical system according to claim 1 or 2, characterized in that the reflective coupling surface (73) comprises a number of second reflective surfaces (731) and a number of coupling surfaces (732), each of the second reflective surfaces (731) and each of the coupling surfaces (732) being alternately connected in turn.
4. An optical system according to claim 3, characterized in that the energy output ψ1 of the illumination source (31) is proportional to S1/(s1+s2); the energy output ψ2 of the signal light source (32) is proportional to S2/(s1+s2), where S1 is the effective reflective area of the second reflective surface (731), and S2 is the effective transmissive area of the coupling surface (732).
5. An optical system according to claim 3, characterized in that the second reflecting surface (731) and/or the coupling surface (732) are provided with a scattering layer.
6. An optical system according to claim 3, characterized in that the second reflecting surface (731) has a first angle a with the light exit direction, which first angle a satisfies 30 ° -a ∈ 45 °; a second included angle b is formed between the coupling surface (732) and the light emergent direction, and the second included angle b is more than or equal to 0 degree and less than or equal to 90 degrees.
7. An optical system according to claim 3, characterized in that the second reflecting surface (731) is a plane or an arc surface and the coupling surface (732) is a plane or an arc surface.
8. An optical system according to claim 1 or 2, characterized in that the second optical element (21) comprises a mirror or collimator and the third optical element (22) comprises a mirror or collimator.
9. An optical system according to claim 8, characterized in that the second optical element (21) comprises a first mirror configured to be able to reflect the first light beam emitted by the illumination source (31) towards the lens (6), and a lens (6) configured to be able to collimate the first light beam reflected by the first mirror towards the first optical element (7).
10. An optical system according to claim 8, characterized in that the third optical element (22) is a second mirror.
11. The optical system according to claim 8, wherein the third optical element (22) is a first collimator, on which a third reflective surface (91) is arranged, the third reflective surface (91) being arranged on a side of the signal light source (32) opposite to the illumination light source (31), the third reflective surface (91) being configured to be able to collimate the second light beam emitted by the signal light source (32) towards the reflective coupling surface (73).
12. The optical system according to claim 8, characterized in that the third optical element (22) is a second collimator, on which a fourth reflecting surface (92) is arranged, which fourth reflecting surface (92) is arranged on a side of the signal light source (32) facing the illumination light source (31), which fourth reflecting surface (92) is configured to be able to collimate the second light beam emitted by the signal light source (32) towards the reflective coupling surface (73).
13. The optical system according to claim 1 or 2, characterized in that the illumination light source (31) and the signal light source (32) face away from the light exit; or the illumination light source (31) and the signal light source (32) emit light in the same direction.
14. The optical system according to claim 13, further comprising a wiring board (1) and a heat sink (4), the illumination light source (31) and the signal light source (32) being arranged on the wiring board (1), the wiring board (1) being mounted on the heat sink (4).
15. A vehicle lamp, characterized in that an optical system according to any one of claims 1 to 14 is provided.
16. The vehicle lamp according to claim 15, characterized in that the first optical element (7) is fitted with a shielding decorative ring (8).
17. A vehicle characterized in that a lamp as claimed in claim 15 or 16 is provided.
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| CN202410026913.4A CN117537299A (en) | 2024-01-09 | 2024-01-09 | Optical system, car lamp and vehicle |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106842787A (en) * | 2012-06-11 | 2017-06-13 | 深圳市绎立锐光科技开发有限公司 | Light source, projection display equipment and light fixture |
| CN115199983A (en) * | 2021-04-12 | 2022-10-18 | 曼德电子电器有限公司 | Optical element, lighting module and car lamp |
| CN116897260A (en) * | 2021-08-20 | 2023-10-17 | 华域视觉科技(上海)有限公司 | Car light illumination module and car light |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106842787A (en) * | 2012-06-11 | 2017-06-13 | 深圳市绎立锐光科技开发有限公司 | Light source, projection display equipment and light fixture |
| CN115199983A (en) * | 2021-04-12 | 2022-10-18 | 曼德电子电器有限公司 | Optical element, lighting module and car lamp |
| CN116897260A (en) * | 2021-08-20 | 2023-10-17 | 华域视觉科技(上海)有限公司 | Car light illumination module and car light |
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