CN111765426B - Optical device for vehicle lamp, vehicle lighting device, and vehicle - Google Patents
Optical device for vehicle lamp, vehicle lighting device, and vehicle Download PDFInfo
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- CN111765426B CN111765426B CN202010286761.3A CN202010286761A CN111765426B CN 111765426 B CN111765426 B CN 111765426B CN 202010286761 A CN202010286761 A CN 202010286761A CN 111765426 B CN111765426 B CN 111765426B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
- F21S41/10—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
- F21S41/14—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source characterised by the type of light source
- F21S41/141—Light emitting diodes [LED]
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
- F21S41/20—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
- F21S41/25—Projection lenses
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
- F21S41/40—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by screens, non-reflecting members, light-shielding members or fixed shades
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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
- F21S41/60—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution
- F21S41/62—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution for adaptation between right-hand and left-hand traffic
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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]
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- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Optics & Photonics (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
The invention relates to the technical field of automobile lighting, and discloses an optical device for an automobile lamp, an automobile lighting device and an automobile. The optical device for the vehicle lamp comprises a left driving optical element and a right driving optical element, wherein the left driving optical element comprises a left driving light inlet part and a left driving transmission part which is arranged in a light outlet end area of the left driving light inlet part and extends along a light outlet direction, and a left driving stop part capable of forming a left driving stop line is arranged at a light outlet end of the left driving transmission part; the right driving optical element comprises a right driving light inlet part and a right driving transmission part which is arranged in a light outlet end region of the right driving light inlet part and extends along the light outlet direction, and a right driving cut-off part capable of forming a right driving cut-off line is arranged at the light outlet end of the right driving transmission part. The invention also relates to an automotive lighting device comprising the optical device and an automobile comprising the automotive lighting device. The optical device has the function of forming the light shape of the left driving lamp and the light shape of the right driving lamp, and has the advantages of high optical efficiency, simple structure and no noise.
Description
Technical Field
The invention relates to the technical field of automobile illumination, in particular to an optical device for an automobile lamp, an automobile illumination device and an automobile.
Background
In the technical field of vehicle lamps, the law requirements of different countries and regions are not very consistent due to the difference between left driving and right driving, and when the difference is reflected on a low-beam cutoff line, the shape of the low-beam cutoff line of a left driving vehicle is higher on the right and lower on the left, and the shape of the low-beam cutoff line of a right driving vehicle is higher on the left and lower on the right. With the development of the automobile industry and international economy, the internationalization degree of the automobile industry is increasingly enhanced, and the automobile lamp is an indispensable important part of the automobile at present and for some time in the future as an automobile lighting device. In order to meet the international market demand, automotive lighting devices are required to meet the lighting needs of different countries and regions.
At present, the prior art of an automotive lighting device for realizing left-right driving integrated setting can refer to chinese invention patent CN105135317B, which discloses a general LED headlamp applicable to left-right driving vehicles, and in order to meet the requirements of left-right driving vehicles at the same time, the technical scheme adopted by the technology is as follows: the LED light source, the reflector and the light blocking mechanism are arranged, and the light blocking mechanism comprises a first light blocking sheet for forming a left driving low beam type, a second light blocking sheet for forming a right driving low beam type, a driving mechanism for driving the first light blocking sheet and the second light blocking sheet to overturn and form a high beam type, a switching mechanism for switching the use states of the first light blocking sheet and the second light blocking sheet, a corresponding mounting support and the like. The light type switching is realized by that the first light blocking sheet and the second light blocking sheet are turned over in opposite directions through the switching mechanism, so that two different low beam light types are switched. The working principle for realizing left driving is as follows: the free end of the shift lever is pulled upwards, so that the first light blocking sheet is turned upwards to play a role in light distribution of the headlamp, the corresponding LED light source is started, and light forms short-distance light irradiation of left driving through the light distribution of the first light blocking sheet. The working principle of realizing right driving is as follows: the free end of the deflector rod is pulled downwards, so that the first light blocking sheet forms downward turning action, the second light blocking sheet plays a light distribution role of the headlamp, and light forms low-beam irradiation of right driving through light distribution of the second light blocking sheet. The prior art comparison documents adopting similar technical means can also refer to Chinese patents CN202598352U and CN 102529796B. The above technical solution has 3 disadvantages: (1) the first optical element for realizing the left driving light type and the right driving light type is a reflector, the optical element generally causes 15% of energy loss of light, and the optical efficiency of the system needs to be further improved; (2) the switching of the left driving light type and the right driving light type is realized by a light blocking sheet and a series of matched driving devices, and the structure is very complex, so that the corresponding lighting device has larger volume and higher cost; (3) when driving left and right and switching, the upset motion of a series of structures can cause certain mechanism motion noise, and after long-time upset, also can cause the mechanism wearing and tearing to the precision of light type is shone in the influence.
The prior art is not sufficient in the aspects of improving the light efficiency, simplifying the system structure, reducing noise and the like, and a new technical scheme is urgently needed to be provided in the technical field to solve the technical problems.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention firstly solves the basic technical problem of providing the optical device for the vehicle lamp, which has the functions of forming the light shape of the left driving lamp and the light shape of the right driving lamp at the same time, and has the advantages of high optical efficiency, simple optical system structure and no noise.
The invention also provides an automobile lighting device comprising the optical device for the automobile lamp and an automobile comprising the automobile lighting device.
In order to achieve the above object, a first aspect of the present invention provides an optical device for a vehicle lamp, including a left driving optical element and a right driving optical element, where the left driving optical element includes a left driving light inlet portion and a left driving transmission portion disposed in a light outlet end region of the left driving light inlet portion and extending along a light outlet direction, and a light outlet end of the left driving transmission portion is provided with a left driving stopping portion capable of forming a left driving stopping line; the right driving optical element comprises a right driving light inlet part and a right driving transmission part, the right driving transmission part is arranged in a light outlet end area of the right driving light inlet part and extends along the light outlet direction, and a right driving cut-off part capable of forming a right driving cut-off line is arranged at the light outlet end of the right driving transmission part. The left driving light inlet portion and the right driving light inlet portion comprise light source connecting portions and a lampshade, the light source connecting portions are concave cambered surface cavities, and the lampshade is a horn-shaped light collecting cup which gradually increases from a position close to a light source end to a position far away from the light source end. The left driving stopping part comprises a left driving stopping part horizontal line section, a left driving stopping part inflection point part and a left driving stopping part diagonal line section, and the right driving stopping part comprises a right driving stopping part horizontal line section, a right driving stopping part inflection point part and a right driving stopping part diagonal line section.
Preferably, the horizontal line section of the left driving stopping part and the horizontal line section of the right driving stopping part are of horizontal concave structures.
Preferably, the left driving light inlet part and the left driving transmission part are integrally formed and are of a transparent structure, the right driving light inlet part and the right driving transmission part are integrally formed and are of a transparent structure, and the left driving transmission part and the right driving transmission part are independently arranged; the thickness of the left driving stopping part and the thickness of the right driving stopping part are more than or equal to 0.5 mm.
Preferably, the left driving transmission part and the right driving transmission part are both hollow closed structures, the light emitting end of the left driving light inlet part is located in the hollow closed structure of the left driving transmission part, and the light emitting end of the right driving light inlet part is located in the hollow closed structure of the right driving transmission part.
Preferably, the left driving entrance part and the left driving transmission part are independently arranged, the right driving entrance part and the right driving transmission part are independently arranged, the left driving transmission part, the left driving stopping part, the right driving transmission part and the right driving stopping part are integrally formed, and the left driving transmission part, the left driving stopping part, the right driving transmission part and the right driving stopping part are of a plate-shaped structure with the thickness less than or equal to 2 mm; the distance between the inflection point part of the left driving stopping part and the inflection point part of the right driving stopping part is less than or equal to 2 mm.
Preferably, the upper surfaces of the left driving transmission part and the right driving transmission part are provided with aluminum plating layers, and the reflectivity of the aluminum plating layers is more than or equal to 0.8.
Preferably, the left driving entrance part, the left driving transmission part, the right driving entrance part and the right driving transmission part are integrally formed and are of a transparent structure, and the thickness of the left driving stopping part and the thickness of the right driving stopping part are more than or equal to 0.5 mm.
Preferably, the left driving transmission part and the right driving transmission part are both hollow closed structures, the light emitting end of the left driving light inlet part is located in the hollow closed structure of the left driving transmission part, the light emitting end of the right driving light inlet part is located in the hollow closed structure of the right driving transmission part, and a wedge-shaped cavity which is narrow at the top and wide at the bottom and is open at the top and the bottom is formed at the joint of the left driving transmission part and the right driving transmission part; the left driving stopping part diagonal line section, the left driving stopping part inflection point part, the right driving stopping part diagonal line section and the right driving stopping part inflection point part are arranged at the light emitting end of the wedge-shaped cavity.
The invention provides an automobile lighting device, which comprises a lens and the optical device for the automobile lamp, wherein the left driving light inlet part is correspondingly provided with a left driving light source, and the right driving light inlet part is correspondingly provided with a right driving light source.
Preferably, the left driving light source is arranged in the left driving light inlet portion, and the right driving light source is arranged in the right driving light inlet portion.
Preferably, the left driving light source and the right driving light source are independently arranged and can be independently addressed so as to be capable of being independently turned on and off respectively.
Preferably, the left driving light source and the right driving light source are single or multiple LED light sources or laser light sources.
Preferably, the left and right drive stops are located in a focal region of the lens.
The invention provides an automobile comprising the automobile lighting device.
Through the technical scheme, the invention has the beneficial effects that:
1. the optical device for the vehicle lamp has high optical efficiency, on one hand, the light shape switching of the left driving and the right driving is realized by mutually and independently turning on or off the light source in the left driving light inlet part and the light source in the right driving light inlet part, and under the condition of specific light shape, the light source corresponding to the unnecessary light shape part is turned off, so the utilization efficiency of the light source is improved; on the other hand, the light shape is formed when the light source in the left driving light inlet part or the light source in the right driving light inlet part is lightened, rather than the light shape emitted by the light source is shielded by the light shielding structure to form the corresponding light shape, so that the optical efficiency is higher; finally, because the left driving optical element and the right driving optical element are respectively provided with the light inlet part and the transmission part, more light rays emitted by the light source are collected and collimated through the light inlet part, and the light shapes are transmitted in the transmission part and then form the light shapes of the vehicle lamps with cut-off lines through the cut-off action of the cut-off part, so that the utilization efficiency of the light rays is higher;
2. the optical device for the vehicle lamp has a simple optical system structure, the device forms the light shape of the left driving lamp or the light shape of the right driving lamp by respectively arranging the light inlet part, the transmission part and the stop part on the left driving optical element and the right driving optical element, the structural composition is relatively simple, and a light screen, a rotating mechanism, an electromagnetic valve and the like with complex structures are not needed, so that the optical system is simple in structure and convenient to install;
3. the optical device for the vehicle lamp provided by the invention can be used for switching the light shapes of the left driving and the right driving by independently turning on or off the light source in the left driving light inlet part and the light source in the right driving light inlet part, thereby avoiding the mechanism noise of a rotating mechanism and an electromagnetic valve and realizing the noiseless switching.
Additional features and advantages of the invention will be set forth in the detailed description which follows.
Drawings
The following drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the scope of the invention. In the drawings:
FIG. 1 is a schematic view of a left-hand ride low beam light pattern;
FIG. 2 is a schematic diagram of a right-hand drive low beam light pattern;
fig. 3 is a schematic structural diagram of an embodiment of an optical device for a vehicle lamp according to the present invention, wherein a left driving light inlet portion, a left driving light transmitting portion, a right driving light inlet portion, and a right driving light transmitting portion are independently provided;
fig. 4 is a plan view of the optical device for a vehicle lamp shown in fig. 3;
fig. 5 is a front view of the optical device for a vehicle lamp shown in fig. 3;
fig. 6 is a bottom view of the optical device for a vehicle lamp shown in fig. 3;
fig. 7 is a schematic structural view of a left-hand drive transmitting portion and a left-hand drive intercepting portion of the optical device for a lamp for a vehicle shown in fig. 3;
fig. 8 is a partial enlarged view of a portion a of fig. 7;
fig. 9 is a schematic structural view of a right drive transmitting portion and a right drive intercepting portion of the optical device for a lamp for a vehicle shown in fig. 3;
fig. 10 is a partial enlarged view of a portion B in fig. 9;
fig. 11 is a schematic structural view of a right driving optical element of the optical device for a lamp for a vehicle shown in fig. 3;
FIG. 12 is a schematic view of the ray direction of the right hand drive optical element of FIG. 11;
fig. 13 is a partial enlarged view of a portion C in fig. 12;
fig. 14 is a schematic structural diagram of a left driver optical element according to an embodiment of the present invention, wherein the left driver light inlet portion and the left driver transmitting portion are integrally formed;
FIG. 15 is an enlarged partial view of portion D of FIG. 14;
fig. 16 is a schematic structural diagram of a right-hand drive optical element according to an embodiment of the present invention, in which the right-hand drive light incident portion and the right-hand drive transmitting portion are integrally formed;
fig. 17 is a partial enlarged view of a portion E in fig. 16;
fig. 18 is a schematic structural view of another embodiment of the optical device for a vehicular lamp according to the present invention, in which a left drive transmitting portion and a right drive transmitting portion are integrally formed;
FIG. 19 is a partial enlarged view of portion F of FIG. 18;
fig. 20 is a plan view of the optical device for a vehicular lamp shown in fig. 18;
fig. 21 is a schematic structural view of the left drive transmitting portion and the right drive transmitting portion of the optical device for a lamp for a vehicle shown in fig. 18;
fig. 22 is a schematic structural view of a third embodiment of the optical device for a vehicular lamp according to the present invention, wherein the left driving light inlet portion, the left driving light transmitting portion, the right driving light inlet portion, and the right driving light transmitting portion are integrally formed;
fig. 23 is one of bottom views of the optical device for a vehicle lamp shown in fig. 22;
fig. 24 is a second bottom view of the optical device for a vehicular lamp shown in fig. 22;
fig. 25 is a third bottom view of the optical device for a vehicular lamp shown in fig. 22;
fig. 26 is a side view of the optical device for a vehicular lamp shown in fig. 22;
FIG. 27 is a schematic view of an auxiliary low beam light shape;
FIG. 28 is a schematic diagram of the superposition of the left-hand cut-off light pattern and the auxiliary low beam light pattern of the present invention;
fig. 29 is a schematic diagram of the light shape of the right driving cutoff portion and the auxiliary low beam light shape of the present invention superimposed.
Description of the reference numerals
1 left driving optical element 101 left driving light inlet part
102 left driving transmission part 103 left driving cut-off part
1031 left drive stopping part horizontal line section 1032 left drive stopping part inflection point part
1033 optical element for right-hand drive of section 2 of diagonal line of left-hand drive cut-off part
201 right driving light incident part 202 right driving transmission part
203 right drive stop 2031 right drive stop horizontal line section
2032 inflection point of right drive stop 2033 diagonal segment of right drive stop
3 wedge cavity 4 Right driving light source
a left driving cut-off line b right driving cut-off line
c light shape of left driving passing light intercepting part d light shape of right driving passing light intercepting part
Detailed Description
The following detailed description of the present invention is provided in conjunction with the accompanying drawings, and it is to be understood that the detailed description is provided for purposes of illustration and explanation and is not intended to limit the scope of the invention.
In the description of the present invention, it should be construed that the terms "upper", "lower", "front", "rear", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. In the present invention, the terms "light incident portion", "transmission portion", "cut-off portion", etc. used in the technical feature description can better define and explain the corresponding technical feature than the structural feature description, and are more concise and clear than the description using the structural feature, and can be uniquely and unambiguously determined by the skilled person.
In the description of the present invention, it should be noted that the light emitting end or the light emitting direction refers to the light emitting end or the light emitting direction of the main transmission direction of the light. "cut-off line" is a general term in the art, and is the upper boundary of the light shape with drop height from the left to the right and with an inflection point at the V-axis position, and after the inflection point, the oblique line connects the upper and lower boundaries. FIG. 1 is a light shape of a near light of a lamp corresponding to a left-driving vehicle, an upper end boundary is a cut-off line, and it can be seen from FIG. 1 that in the up-down direction, the right side of a left-driving cut-off line a is higher than the left side, because for the left-driving vehicle, the right side light shape irradiates the left lane and the right side of the lane on the road surface, the light shape is higher, the light shape irradiates on the road surface more brightly and farther, and the left side light shape is lower, and the boundary line of the left side light shape is generally positioned at-0.57 degrees according to the legislation requirement, which corresponds to the left side of the lane on the road surface, more corresponding to the opposite-coming vehicle, and the light intensity is lower and the distance is closer than the right side in application; fig. 2 shows the light shape of the low beam of the lamp corresponding to the right-hand vehicle, and it can be seen that the shape of the right-hand drive cutoff line b is reversed compared to the left-hand drive cutoff line a, and is high on the left and low on the right in the up-down direction.
As shown in fig. 3 to 13, the optical device for a vehicle lamp provided by the first aspect of the present invention includes a left driving optical element 1 and a right driving optical element 2, where the left driving optical element 1 includes a left driving light entering portion 101 and a left driving transmission portion 102 disposed in a light exit end region of the left driving light entering portion 101 and extending along a light exit direction, and a left driving stopping portion 103 capable of forming a left driving stopping line is disposed at a light exit end of the left driving transmission portion 102; the right driving optical element 2 comprises a right driving light inlet portion 201 and a right driving transmission portion 202 which is arranged in a light outlet end region of the right driving light inlet portion 201 and extends along a light outlet direction, a right driving cut-off portion 203 capable of forming a right driving cut-off line is arranged at a light outlet end of the right driving transmission portion 202, the left driving cut-off portion 103 comprises a left driving cut-off portion horizontal line section 1031, a left driving cut-off portion inflection point portion 1032 and a left driving cut-off portion diagonal line section 1033, and the right driving cut-off portion 203 comprises a right driving cut-off portion horizontal line section 2031, a right driving cut-off portion inflection point portion 2032 and a right driving cut-off portion diagonal line section 3.
In the present invention, the left driving light admission part 101, the left driving transmission part 102, the left driving stopping part 103, the right driving light admission part 201, the right driving transmission part 202 and the right driving stopping part 203 may be separately provided, and fixed after being assembled, or two or more of them may be integrally formed, and fixed after being assembled with other parts. When the optical device for the vehicle lamp in the basic technical scheme is used, the left driving light part 101 and the right driving light part 201 are respectively provided with the mutually independent light sources, when the light source in the left driving light part 101 is turned on, the left driving light part 101 collects and collimates light rays emitted by the light sources, then the light rays emitted by the left driving light part 101 are converged to the left driving stopping part 103 along the front-back extending direction of the left driving transmission part 102, and the light rays are stopped by the left driving stopping part 103 to form a left driving light-shaped structure and then are emitted; when a light source in the right driving light inlet part 201 is turned on, the right driving light inlet part 201 collects and collimates light rays emitted by the light source, then the light rays emitted by the right driving light inlet part 201 are converged to a right driving stopping part 203 along the front-back extending direction of a right driving transmission part 202, and the light rays are stopped by the right driving stopping part 203 to form a left driving light-shaped structure and then are emitted; the light sources in the left driving light inlet part 101 and the right driving light inlet part 201 are independently arranged and individually addressable, and are independently turned on and off respectively, when the light source in the left driving light inlet part 101 is turned on and the light source in the corresponding right driving light inlet part 201 is turned off, the light shape of the lamp used by the corresponding left driving vehicle is realized, and when the light source in the corresponding right driving light inlet part 201 is turned on and the light source in the corresponding left driving light inlet part 101 is turned off, the light shape of the lamp used by the corresponding right driving vehicle is realized. The left driving cutoff horizontal line section 1031, the left driving cutoff inflection point 1032, and the left driving cutoff diagonal line section 1033 make the light pattern formed after cutoff by the left driving cutoff 103 have a light pattern in the shape of a left driving cutoff line, and the right driving cutoff horizontal line section 2031, the right driving cutoff inflection point 2032, and the right driving cutoff diagonal line section 2033 make the light pattern formed after cutoff by the right driving cutoff 203 have a light pattern in the shape of a right driving cutoff line.
The left driving light inlet part 101 and the right driving light inlet part 201 in the optical device for the automobile lamp respectively comprise a light source connecting part and a lampshade, the light source connecting part is a concave cambered cavity, and the lampshade is a horn-shaped light-gathering cup which is gradually enlarged from a close light source end to a far light source end. When the LED lamp is used, the light source is arranged at the position corresponding to the space surrounded by the inner concave cambered surface cavity, and the light emitted by the corresponding light source can be effectively collected and collimated by the lampshade, so that the light source can be better utilized, and the utilization efficiency of the light is improved.
It should be noted that "collection and collimation" refers to a structure in which light emitted from a light source in the light entrance part first enters, and the light is refracted into the light entrance part, reflected by the outer contour, and then irradiated toward the cut-off part, "converging to the cut-off part" refers to a process in which light entering from the light entrance part is converged and irradiated to the cut-off part directly or after being reflected by the transmission part, and the position of the cut-off part is equivalent to the light exit surface of the optical element, and forms a light shape having a cut-off line shape after being cut off. The horizontal line section, the inflection point section, and the oblique line section of the left-hand cut-off portion 103 or the right-hand cut-off portion 203 have respective cut-off lines, and are provided so that the light form formed after the cut-off has a shape corresponding to the cut-off lines, but the shape of the lower surface of the optical element is not limited, and may be a curved surface having two sections of surfaces in contact with each other, or a curved surface having a special shape as long as the cut-off portion has a shape corresponding to the cut-off lines. "horizontal" is to be understood as an extended trend in the left-right direction, i.e., the line segment has a horizontal or nearly horizontal shape as viewed from the front to the rear, but is limited to a strict horizontal relationship.
In a preferred embodiment of the present invention, the left driving cutoff horizontal line section 1031 and the right driving cutoff horizontal line section 2031 are horizontally concave structures. When the left driving optical element 1 or the right driving optical element 2 is matched with the lens for use, the focal point of the lens is not a line or a plane, the cut-off part is used as the light-emitting part of the optical element, and the aberration of light beams on two sides can be corrected by utilizing the horizontal concave structure, so that a clearer car light shape is formed. The term "concave" refers to a line shape that is relatively far away from the lens near the middle position, and the line shape of the concave is not strictly limited herein, and may be specifically a concave arc line or a line shape with a similar shape, such as an irregular curve, as long as the left driving stopping portion horizontal line section 1031 and the right driving stopping portion horizontal line section 2031 have a concave line shape when viewed from top to bottom. Specifically, the horizontal line sections 1031 and 2031 of the left driving stopping part and the right driving stopping part can be arranged to be of an inward concave arc structure with the radius R being more than or equal to 80 mm.
In a preferred embodiment of the present invention, as shown in fig. 14-17, the left driving light admission part 101 and the left driving transmission part 102 are integrally formed and are of a transparent structure, the right driving light admission part 201 and the right driving transmission part 202 are integrally formed and are of a transparent structure, and the left driving transmission part 102 and the right driving transmission part 202 are independently arranged; the thickness of the left driving stopping part 103 and the thickness of the right driving stopping part 203 are more than or equal to 0.5mm, the structural stability between the light inlet part and the transmission part is enhanced, meanwhile, the transparent structure enables light rays collected and collimated by the light inlet part to be transmitted in the transmission part in a total reflection mode, and the light ray loss is smaller compared with optical elements of other structures. Because the up-down angle of the left driving or right driving light-shaped cut-off part is about 0.57 degrees, and simultaneously, the thickness of the corresponding optical element cannot be too small by combining the requirements of the manufacturing process, and the thickness of the left driving cut-off part 103 and the right driving cut-off part 203 is difficult to ensure on the manufacturing precision, the thickness of the left driving cut-off part and the right driving cut-off part is more than or equal to 0.5mm, so that the precision requirement of the manufacturing process can be met, the angle of the light-shaped cut-off part is more than 0.57 degrees, and the requirement of the whole light shape of the low beam can be met after the light-shaped cut-off part is superposed with the light-shaped widening light shape of the low beam, wherein the light-widening light shape of the low beam is the light shape except the light shape of the cut-off part.
As shown in fig. 14 and 16, the left driving transmitter 102 and the right driving transmitter 202 are both hollow and closed structures, the light emitting end of the left driving light inlet 101 is located in the hollow and closed structure of the left driving transmitter 102, and the light emitting end of the right driving light inlet 201 is located in the hollow and closed structure of the right driving transmitter 202. The structure has the advantages that the left and right driving light-shaped optical elements are separately arranged, and meanwhile, light rays output by the left driving light inlet part 101 or the right driving light inlet part 201 can be transmitted in the closed transmission part, so that the optical efficiency is improved.
In a preferred embodiment of the present invention, as shown in fig. 18-21, the left driving light admission part 101 and the left driving transmission part 102 are independently arranged, the right driving light admission part 201 and the right driving transmission part 202 are independently arranged, the left driving transmission part 102, the left driving stopping part 103, the right driving transmission part 202 and the right driving stopping part 203 are integrally formed, and are in a plate-shaped structure with a thickness less than or equal to 2 mm; the left driving stopping part diagonal line section 1033 intersects with the right driving stopping part diagonal line section 2033, and the distance between the left driving stopping part inflection point part 1032 and the right driving stopping part inflection point part 2032 is less than or equal to 2 mm. According to the structure, the left driving transmission part 102, the left driving stopping part 103, the right driving transmission part 202 and the right driving stopping part 203 are integrally formed, and when the optical device is assembled, the optical device only needs to be fixedly connected with the left driving light inlet part 101 and the right driving light inlet part 201, so that the whole optical device is convenient to mount and strong in structural stability. By combining the manufacturing process, the weight of the optical element and the production cost, the left driving transmission part 102, the left driving stopping part 103, the right driving transmission part 202 and the right driving stopping part 203 are set to be plate-shaped structures with the thickness less than or equal to 2mm, specifically, the left driving transmission part, the left driving stopping part 103, the right driving transmission part 202 and the right driving stopping part 203 can be set to be thin plate structures with the thickness of 0.5mm, so that the precision requirement of the manufacturing process can be met, the influence of the weight of the optical element on the light shape can be further reduced, and the production cost is reduced.
Furthermore, the upper surfaces of the left driving transmission part 102 and the right driving transmission part 202 are provided with aluminum plating layers, and the reflectivity of the aluminum plating layers is larger than or equal to 0.8, so that the surface of the transmission part has a strong light reflection effect, the convergence and the bundling of the transmission part on light rays are enhanced, and the optical efficiency is improved.
In a preferred embodiment of the present invention, as shown in fig. 22-26, the left driving entrance part 101, the left driving transmission part 102, the right driving entrance part 201 and the right driving transmission part 202 are integrally formed, and are of a transparent structure, and the thickness of the left driving stopping part 103 and the right driving stopping part 203 is more than or equal to 0.5 mm. In this case, the left driving light entering part 101, the left driving transmission part 102, the right driving light entering part 201 and the right driving transmission part 202 are integrally formed, and separate assembly is not required, so that the whole optical device is easy to assemble, and the structural stability is high. The thickness of the left driving stopping part 103 and the right driving stopping part 203 is more than or equal to 0.5mm, so that the requirement on the angle of the light shape can be met, and the requirement on the precision of the manufacturing process can also be met.
Further, as shown in fig. 23-26, the left driving transmission part 102 and the right driving transmission part 202 are both hollow closed structures, the light emitting end of the left driving light admission part 101 is located in the hollow closed structure of the left driving transmission part 102, the light emitting end of the right driving light admission part 201 is located in the hollow closed structure of the right driving transmission part 202, and a wedge-shaped cavity 3 with a narrow top and a wide bottom and open top and bottom is formed at the connection part of the left driving transmission part 102 and the right driving transmission part 202; the left driving stopping part diagonal line section 1033, the left driving stopping part inflection point part 1032, the right driving stopping part diagonal line section 2033 and the right driving stopping part inflection point part 2032 are arranged at the light emitting end of the wedge-shaped cavity 3. This structure can drive transmission portion 102 on a left side and drive the basis of transmission portion 202 an organic whole with the right side for light can propagate in confined transmission portion, is favorable to improving optical efficiency, and the setting of wedge cavity 3 is driven the light shape of driving on a left side, right side effectively and is opened separately simultaneously, makes the transmission portion that drives on a left side and drive on the right side not merge. The left driving stopping part diagonal line section 1033, the left driving stopping part inflection point part 1032, the right driving stopping part diagonal line section 2033 and the right driving stopping part inflection point part 2032 are arranged at the light emitting end of the wedge-shaped cavity 3 and retreat for a certain distance relative to the horizontal light emitting ends of the left driving transmission part 102 and the right driving transmission part 202, so that the left driving transmission part 102 and the right driving transmission part 202 are integrally formed and have higher structural strength.
As can be seen from the above description, the optical device for a vehicle lamp according to the present invention has the advantages that the left driving light shape and the right driving light shape are switched by turning on or off the light source in the left driving light inlet 101 and the light source in the right driving light inlet 201 independently from each other, and in the case of a specific light shape, the light source corresponding to the unnecessary light shape portion is turned off, and the light shape emitted from the light source is not shielded by the light shielding structure to form a corresponding light shape, so that the utilization efficiency of the light source is improved, and meanwhile, the left driving optical element 1 and the right driving optical element 2 are respectively provided with the light inlet portion and the transmission portion, so that more light emitted from the light source is collected and collimated by the light inlet portion, and the light shape is transmitted in the transmission portion and then forms a vehicle lamp light shape with a cut-off line by the cut-off action of the cut-off portion, so that the utilization efficiency of the light is higher; meanwhile, the device has relatively simple structural composition, does not need a light screen, a rotating mechanism, an electromagnetic valve and the like with complex structures, and ensures that the optical system has simple structure and convenient installation; the light shape switching between the left driving and the right driving is performed by independently turning on or off the light source in the left driving light inlet part 101 and the light source in the right driving light inlet part 201, so that the mechanism noise of the rotating mechanism and the electromagnetic valve is avoided, and the noiseless switching can be realized.
In addition to the above-described optical device for a vehicle lamp according to the present invention, a second aspect of the present invention provides an automotive lighting device including a lens and the above-described optical device, wherein the left driving light source is provided in correspondence with the left driving light entry portion 101, and the right driving light source is provided in correspondence with the right driving light entry portion 201.
Further, a left driving light source is arranged in the left driving light inlet part 101, a right driving light source 4 is arranged in the right driving light inlet part 201, and the left driving light source and the right driving light source 4 are independently arranged and can be independently addressed so as to be respectively and independently turned on and off. When the left driving light source is turned on and the right driving light source 4 is turned off, the light irradiation during the left driving is realized, and when the right driving light source 4 is turned on and the left driving light source is turned off, the light irradiation during the right driving is realized. The lens is a conventional arrangement as a secondary optical element of the automobile lighting device, the light emitting surface of the left driving light source faces the left driving light inlet part 101, and the light emitting surface of the right driving light source 4 faces the right driving light inlet part 201, wherein the light sources can be single or multiple arranged LED light sources or laser light sources. Further, the left driving cut-off part 103 and the right driving cut-off part 203 are located in the focal region of the lens, and the cut-off parts are not limited to be located exactly at the focal point of the lens, and may have slight deviation, and those skilled in the art can adjust the cut-off parts according to different design conditions, without excluding the situation of being located at the focal point, and it is clear to those skilled in the art that the structure for forming the cut-off line is located at a position coinciding with the focal point of the lens.
In the present invention, the lighting device of the vehicle may further include an auxiliary low beam structure, and a schematic view of the auxiliary low beam is shown in fig. 27, which is overlapped with the cut-off portion light beam to form a complete low beam. The schematic diagram of the superimposed light shape of the left-hand cut-off 103 and the auxiliary low beam light shape is shown in fig. 28, where c is marked as "LHD Cutoff", i.e., the light shape schematic diagram of the left-hand cut-off, which is realized by the corresponding left-hand optical element 1 in the present invention, and the schematic diagram of the superimposed light shape of the right-hand cut-off 203 and the auxiliary low beam light shape is shown in fig. 29, where d is marked as "RHD Cutoff", i.e., the light shape schematic diagram of the right-hand cut-off, which is realized by the corresponding right-hand optical element 2 in the present invention. The optical element for assisting the low beam is not limited, the optical element is realized by applying the prior art, the optical element and the optical device can be arranged in the same automobile lighting device, or can be independently arranged, and the superposition of the auxiliary low beam and the light shape formed by the left driving optical element 1 or the right driving optical element 2 can be superposition with a certain fusion area, or can be connected and superposed at the boundary.
On the basis of the above-mentioned lighting device for an automobile, the third aspect of the present invention provides an automobile, which includes the above-mentioned lighting device for an automobile, and therefore, at least all the advantages brought by the technical solution of the embodiment of the optical device for an automobile lamp are provided, and no further description is given here.
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, numerous simple modifications can be made to the technical solution of the invention, including combinations of the specific features in any suitable way, and the invention will not be further described in relation to the various possible combinations in order to avoid unnecessary repetition. Such simple modifications and combinations should be considered within the scope of the present disclosure as well.
Claims (14)
1. An optical device for a vehicle lamp, characterized by comprising a left driving optical element (1) and a right driving optical element (2),
the left driving optical element (1) comprises a left driving light inlet part (101) and a left driving transmission part (102) which is arranged in a light outlet end area of the left driving light inlet part (101) and extends along a light outlet direction, a left driving cut-off part (103) capable of forming a left driving cut-off line is arranged at a light outlet end of the left driving transmission part (102),
the right driving optical element (2) comprises a right driving light inlet part (201) and a right driving transmission part (202) which is arranged in the light outlet end area of the right driving light inlet part (201) and extends along the light outlet direction, the light outlet end of the right driving transmission part (202) is provided with a right driving cut-off part (203) capable of forming a right driving cut-off line,
the left driving light inlet part (101) and the right driving light inlet part (201) both comprise a light source connecting part and a lampshade, the light source connecting part is a concave cambered cavity, the lampshade is a horn-shaped light-gathering cup gradually increasing from a position close to a light source end to a position far away from the light source end,
the left driving stopping part (103) comprises a left driving stopping part horizontal line section (1031), a left driving stopping part inflection point part (1032) and a left driving stopping part diagonal line section (1033), and the right driving stopping part (203) comprises a right driving stopping part horizontal line section (2031), a right driving stopping part inflection point part (2032) and a right driving stopping part diagonal line section (2033).
2. The optical device for a vehicle lamp according to claim 1, wherein the left driving cut-off horizontal line section (1031) and the right driving cut-off horizontal line section (2031) are horizontally concave structures.
3. The optical device for a vehicle lamp according to claim 1 or 2, wherein the left driving light entry portion (101) is formed integrally with the left driving transmission portion (102) and has a transparent structure, the right driving light entry portion (201) is formed integrally with the right driving transmission portion (202) and has a transparent structure, and the left driving transmission portion (102) and the right driving transmission portion (202) are provided independently;
the thickness of the left driving stopping part (103) and the thickness of the right driving stopping part (203) are more than or equal to 0.5 mm.
4. The optical device for the vehicle lamp as claimed in claim 3, wherein the left driving transmission part (102) and the right driving transmission part (202) are both hollow closed structures, the light emitting end of the left driving light inlet part (101) is located in the hollow closed structure of the left driving transmission part (102), and the light emitting end of the right driving light inlet part (201) is located in the hollow closed structure of the right driving transmission part (202).
5. The optical device for the vehicle lamp according to claim 1 or 2, wherein the left driving light entry portion (101) is provided independently of the left driving transmission portion (102), the right driving light entry portion (201) is provided independently of the right driving transmission portion (202), and the left driving transmission portion (102), the left driving cut-off portion (103), the right driving transmission portion (202), and the right driving cut-off portion (203) are integrally formed and have a plate-like structure with a thickness of 2mm or less;
the left driving stopping part diagonal line section (1033) is intersected with the right driving stopping part diagonal line section (2033), and the distance between the left driving stopping part inflection point part (1032) and the right driving stopping part inflection point part (2032) is less than or equal to 2 mm.
6. The optical device for the vehicle lamp according to claim 5, wherein the upper surfaces of the left driving transmission part (102) and the right driving transmission part (202) are provided with aluminum plating layers, and the reflectivity of the aluminum plating layers is greater than or equal to 0.8.
7. The optical device for the vehicle lamp according to claim 1 or 2, wherein the left driving light entry portion (101), the left driving transmission portion (102), the right driving light entry portion (201), and the right driving transmission portion (202) are integrally formed and have a transparent structure, and the thickness of the left driving stopping portion (103) and the thickness of the right driving stopping portion (203) are greater than or equal to 0.5 mm.
8. The optical device for the vehicle lamp according to claim 7, wherein the left driving transmission part (102) and the right driving transmission part (202) are both hollow closed structures, the light emitting end of the left driving light inlet part (101) is located in the hollow closed structure of the left driving transmission part (102), the light emitting end of the right driving light inlet part (201) is located in the hollow closed structure of the right driving transmission part (202), and a wedge-shaped cavity (3) which is narrow at the top and wide at the bottom and is open at the top and the bottom is formed at the joint of the left driving transmission part (102) and the right driving transmission part (202);
the left driving stopping part diagonal line section (1033), the left driving stopping part inflection point part (1032), the right driving stopping part diagonal line section (2033) and the right driving stopping part inflection point part (2032) are arranged at the light emitting end of the wedge-shaped cavity (3).
9. An automotive lighting arrangement, characterized in that it comprises a lens and an optical arrangement according to any one of claims 1 to 8, said left driving light entry portion (101) being correspondingly provided with a left driving light source, and said right driving light entry portion (201) being correspondingly provided with a right driving light source.
10. The lighting device for an automobile as claimed in claim 9, wherein the left driving light source is provided in the left driving light entrance part (101), and the right driving light source is provided in the right driving light entrance part (201).
11. The automotive lighting device of claim 9, wherein the left hand light source and the right hand light source are independently located and individually addressable to be independently illuminated and turned off.
12. The automotive lighting device of claim 9, wherein the left and right sources are single or multiple LED or laser sources.
13. The automotive lighting device of any one of claims 9 to 12, wherein the left driver cut-off (103) and the right driver cut-off (203) are located in a focal region of the lens.
14. An automobile, characterized by comprising the automobile lighting device of any one of claims 9 to 13.
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| CN2019207260864 | 2019-05-20 | ||
| CN201920726086 | 2019-05-20 |
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| CN113503516A (en) * | 2020-11-18 | 2021-10-15 | 华域视觉科技(上海)有限公司 | Car lamp module, car lamp and vehicle |
| CN112944276B (en) * | 2021-02-24 | 2021-10-01 | 华域视觉科技(上海)有限公司 | Far and near light integrated optical device, automobile lighting device and automobile |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102713420A (en) * | 2010-01-12 | 2012-10-03 | 株式会社小糸制作所 | Vehicle headlamp |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102713420A (en) * | 2010-01-12 | 2012-10-03 | 株式会社小糸制作所 | Vehicle headlamp |
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