CN211822200U - Low-beam primary optical element, car lamp module, car lamp and car - Google Patents
Low-beam primary optical element, car lamp module, car lamp and car Download PDFInfo
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- CN211822200U CN211822200U CN202020370212.XU CN202020370212U CN211822200U CN 211822200 U CN211822200 U CN 211822200U CN 202020370212 U CN202020370212 U CN 202020370212U CN 211822200 U CN211822200 U CN 211822200U
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Abstract
The utility model relates to an automobile lamp discloses a short-distance beam primary optical element, by including income light portion (101), logical light portion (102) and light-emitting portion (103) to preceding in proper order, light-emitting portion (103) including main play plain noodles (1031) and with inferior play plain noodles (1032) that main play plain noodles (1031) link to each other, be equipped with the short-distance beam on inferior play plain noodles (1032) and end line structure (105), inferior play plain noodles (1032) are suitable for with penetrating to the light of short-distance beam end line structure (105) is refraction to the upper front. The utility model also discloses a car light module and car light and vehicle including this short-distance beam primary optical element. The utility model discloses a short-distance beam primary optical element simple structure can effectively improve the colour of short-distance beam light and shade cut-off line, weakening chromatic dispersion.
Description
Technical Field
The utility model relates to an automobile lamp specifically relates to a short-distance beam primary optical element. Furthermore, the utility model discloses still relate to a car light module, car light and vehicle including the primary optical element of short-distance beam.
Background
The light distribution pattern of the existing vehicle that the illuminating light projects on the vertical light distribution screen 25m ahead of the vehicle is divided into a low-beam illuminating light pattern and a high-beam illuminating light pattern, the low-beam illuminating light pattern is formed by a low-beam module in the vehicle lamp module, a low-beam primary optical element (such as a reflector and a light guide) and a secondary optical element (such as a lens) are usually arranged in the low-beam module, the light emitted by the low-beam light source sequentially passes through the low-beam primary optical element and the secondary optical element to form the low-beam illuminating light pattern, and the light emitted to the low-beam bright-dark cut-off line structure at the lower edge of the low-beam primary optical element can form the low-beam bright-dark cut-off line in.
However, most of the light passing through the low-beam cutoff line structure of the low-beam primary optical element in the prior art enters from the lower portion of the secondary optical element (lens), and the low-beam cutoff line formed after refraction by the secondary optical element is blue in color, so that the dispersion phenomenon is severe, and discomfort of a driver during driving is caused.
For the reasons, the prior art is difficult to effectively ensure that the color of the cut-off line of the near light illumination light shape is ideal, and the dispersion phenomenon is not serious.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the problem that the first aspect will be solved provides a short-distance beam primary optical element, this short-distance beam primary optical element simple structure, can effectively improve the colour of short-distance beam light and shade cut-off line, weakening chromatic dispersion.
Furthermore, the utility model discloses the problem that the second aspect is solved provides a car light module, and this car light module's short-distance beam primary optical element simple structure can effectively improve the colour of short-distance beam light and shade cut-off line, weakening chromatic dispersion.
Further, the present invention provides a vehicle lamp, which has a simple structure of the low beam primary optical element, and can effectively improve the color of the low beam cut-off line and reduce the chromatic dispersion.
Further, the present invention in its fourth aspect provides a vehicle having a low-beam light-dark cutoff line of a low-beam illumination light pattern with ideal color and less noticeable chromatic dispersion.
In order to solve the technical problem, the utility model provides an aspect provides a short-distance beam primary optical element, this short-distance beam primary optical element includes into light portion, logical light portion and light-emitting portion in proper order to preceding by the back, light-emitting portion include main play plain noodles and with the inferior play plain noodles that main play plain noodles links to each other, it ends the line structure to be equipped with the short-distance beam on inferior play plain noodles, inferior play plain noodles is suitable for with penetrating extremely the short-distance beam is by the refraction of line structure to the upper front.
As a preferred embodiment, a transition surface is disposed between the primary light emitting surface and the secondary light emitting surface, and the transition surface is adapted to smoothly connect the primary light emitting surface and the secondary light emitting surface.
More preferably, the transition surface is a circular arc surface.
As another preferred embodiment, the lower surface of the light-passing portion and the secondary light-emitting surface intersect to form the low-beam cut-off line structure.
More preferably, the secondary light emitting surface gradually inclines towards the rear lower direction from top to bottom.
As a specific structural form, the light inlet part is of a light-gathering cup structure, the light inlet end of the light-gathering cup structure is a plane or the rear part of the light-gathering cup structure is provided with a groove, and a curved surface protruding towards the rear is arranged in the groove; or the light inlet part is a convex or conical structure protruding backwards.
More specifically, the left and right sides of the light-passing portion are integrally connected with mounting portions.
As another specific structure form, an included angle theta is formed between the main light-emitting surface and the secondary light-emitting surface, and the theta is more than or equal to 100 degrees and less than 180 degrees.
More specifically, the included angle theta is larger than or equal to 120 degrees and smaller than 160 degrees.
Further specifically, the included angle θ is 150 °.
The utility model discloses the second aspect provides a car light module, by backward including the light source in proper order, according to any one in the above-mentioned technical scheme short-distance beam primary optical element and secondary optical element, the light source with go into light portion one-to-one setting, short-distance beam primary optical element's income light portion optical axis with secondary optical element optical axis is formed with contained angle gamma, just short-distance beam primary optical element along it inclines to the preceding below gradually to go into light portion optical axis by backward.
As a specific embodiment, the included angle gamma is more than or equal to 5 degrees.
More specifically, the angle γ is ≧ 15.
Further specifically, the included angle γ is 20 °.
As another specific embodiment, the low-beam cut-off line structure is disposed in an area 2mm above and below the optical axis of the secondary optical element.
The third aspect of the present invention provides a vehicle lamp, including the vehicle lamp module according to any one of the above technical solutions.
The utility model discloses the fourth aspect provides a vehicle, include according to among the above-mentioned technical scheme car light module.
Through the technical scheme, the utility model discloses a short-distance beam primary optical element includes into light portion, logical light portion and light-emitting portion in proper order by back to the front, light-emitting portion include main play plain noodles and with the inferior play plain noodles that main play plain noodles links to each other, it ends the line structure to be equipped with the short-distance beam on the inferior play plain noodles, inferior play plain noodles is suitable for will penetrate extremely the short-distance beam is by the refraction of the light of line structure to the upper front. The utility model discloses a light-emitting portion of short-distance beam primary optical element includes main play plain noodles and inferior play plain noodles to set up the short-distance beam on inferior play plain noodles and cut off the line structure, utilize inferior play plain noodles will penetrate to the short-distance beam to cut off the light of line structure and kick into secondary optical element after upwards the deflection, can avoid light as far as possible to be penetrated by secondary optical element's the latter half, improve the colour of short-distance beam light and shade cut-off line with this, weakening dispersion phenomenon, thereby can improve driver's visual sensation.
Further advantages of the invention, as well as the technical effects of preferred embodiments, will be further explained in the following detailed description.
Drawings
FIG. 1 is a schematic diagram of a specific embodiment of a low-beam primary optical element of the prior art;
FIG. 2 is a light path diagram of a prior art lamp module;
FIG. 3 is a simulated schematic view of a low beam shape of a vehicle lamp;
FIG. 4 is one of the schematic structural views of a low beam primary optic according to an embodiment of the present invention;
FIG. 5 is a second schematic diagram of the structure of the low beam primary optic according to the embodiment of the present invention;
fig. 6 is a third schematic structural view of a low beam primary optical element according to an embodiment of the present invention;
FIG. 7 is a fourth schematic diagram of the structure of the low beam primary optical element according to the embodiment of the present invention;
FIG. 8 is an enlarged view of a portion of FIG. 7;
fig. 9 is a top view of a low beam primary optic of an embodiment of the present invention;
FIG. 10 is a sectional view taken along line B-B of FIG. 9;
FIG. 11 is an enlarged view of a portion of FIG. 10 from direction C;
fig. 12 is a schematic structural diagram of a vehicle lamp module according to an embodiment of the present invention;
fig. 13 is a second schematic structural view of the vehicular lamp module according to the embodiment of the present invention;
fig. 14 is a top view of a vehicle lamp module according to an embodiment of the present invention;
FIG. 15 is a cross-sectional view taken along line D-D of FIG. 14;
fig. 16 is a light path diagram of the vehicle lamp module according to the embodiment of the present invention.
Description of the reference numerals
1 low beam primary optical element 101 incident part
102 light passing part 1021 lower surface
103 light outlet part 1031 main light outlet surface
1032 th light emitting surface 1033 transition surface
104 mounting part 105 low beam cut-off line structure
2 secondary optical element 3 light incident part optical axis
4 secondary optical element optical axis 5 main light-emitting surface curved surface
Light-emitting surface curved surface 7 near light cut-off line for 6 times
Detailed Description
The following detailed description of the embodiments of the present invention is provided in conjunction with the accompanying drawings, and it should be understood that the embodiments described herein are merely for purposes of illustration and explanation, and the scope of the present invention is not limited to the following embodiments.
In the description of the present invention, it should be explained that the directions or positional relationships indicated by the terms "front", "rear", "left", "right", "up", "down" are based on the directions or positional relationships indicated by the directions in the normal running state of the vehicle after the low beam primary optical element or the vehicle lamp module of the present invention is mounted on the vehicle. Specifically, the end where the secondary optical element 2 is located is front, the end where the light incident portion 101 is located is rear, and with respect to the front-rear direction, when viewed from the rear to the front, the left and right of the low beam primary optical element 1 are left-right directions, and the up and down of the low beam primary optical element 1 are up-down directions.
According to the definition of GB 4599-2007-filament bulb headlamp for automobile: in the description of the present invention, it should be noted that the "low beam cutoff line" is a general term in the art, and is an upper boundary of a shape of the low beam illumination light, and the shape of the low beam cutoff line 7 may be different according to the regulations of different countries. Fig. 3 shows a shape of the low-beam cut-off 7.
In the description of the present invention, it should be further noted that, unless otherwise explicitly stated or limited, the terms "mounted" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; either directly or indirectly through intervening media, either internally or in any combination thereof. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
As shown in fig. 4 to 11, an aspect of the present invention provides a low beam primary optical element, which comprises an incident light portion 101, a light passing portion 102 and a light emitting portion 103 from back to front in sequence, wherein the light emitting portion 103 comprises a main light emitting surface 1031 and a secondary light emitting surface 1032 connected to the main light emitting surface 1031, a low beam cut-off line structure 105 is disposed on the secondary light emitting surface 1032, and the secondary light emitting surface 1032 is adapted to refract light emitted to the low beam cut-off line structure 105 to the front and top.
As can be seen from fig. 1, the light-emitting portion 103 of the low-beam primary optical element 1 in the prior art is a continuous and smooth curved surface, a low-beam cut-off line structure 105 matching with the shape of the low-beam cut-off line 7 is formed at the lower edge of the light-emitting portion 103, and after being cut off by the low-beam cut-off line structure 105, the light is projected by the secondary optical element 2 to form a low-beam illumination light shape with the low-beam cut-off line 7. As can be seen from fig. 2, in the vehicle lamp module including the low-beam primary optical element 1 of the prior art, most of the light (i.e., the light within the dashed line frame in the figure) passing through the low-beam cut-off line structure 105 of the low-beam primary optical element 1 enters from the lower portion of the secondary optical element 2, and is refracted by the secondary optical element 2 to form the low-beam cut-off line 7, and the low-beam cut-off line 7 is bluish in color, so that the dispersion phenomenon is severe, which may cause discomfort to the driver during the driving of the vehicle.
As shown in fig. 5, the main light emitting surface 1031 of the low beam primary optical element of the present invention is disposed on the main light emitting surface curved surface 5, the secondary light emitting surface 1032 is disposed on the secondary light emitting surface curved surface 6, and the main light emitting surface curved surface 5 and the light emitting surface curved surface 6 are not parallel, a transition surface 1033 is formed at the intersection of the two, that is, a transition surface 1033 is formed between the main light emitting surface 1031 and the secondary light emitting surface 1032, and the transition surface 1033 is preferably an arc surface, and can smoothly connect the main light emitting surface 1031 and the secondary light emitting surface 1032. After the light passes through the secondary light emitting surface 1032 and the low-beam cut-off line structure 105 disposed on the secondary light emitting surface 1032, the light goes toward as shown in fig. 16, and most of the light passing through the low-beam cut-off line structure 105 (i.e., the light in the dashed line frame in the figure) can be deflected upward and enter the secondary optical element 2, so that the color of the low-beam cut-off line 7 is white or yellow, the boundary color is improved, and the visual perception of the driver is improved.
As shown in fig. 4 and 8, the lower surface 1021 of the light-passing portion 102 and the secondary light emitting surface 1032 intersect to form the low-beam cut-off line structure 105.
As a preferred structure, the light emitting secondary surface 1032 gradually inclines from top to bottom toward the rear and downward direction.
As can be seen from fig. 11, the secondary light emitting surface 1032 is inclined from top to bottom to the rear and downward direction, so as to ensure that the light passing through the low-beam cut-off structure 105 can enter the secondary optical element 2 obliquely toward the front and upward direction.
It should be noted here that the main light emitting surface 1031 is a curved surface concave backward, and the secondary optical element 2 is preferably a lens, so that the main light emitting surface 1031 can be adapted to a focal plane of the lens to image the car light clearly.
As another preferred structure, the light incident portion 101 is a light-gathering cup structure, the light incident end of the light-gathering cup structure is a plane, or a groove is formed in the rear portion of the light-gathering cup structure, and a curved surface protruding rearward is formed in the groove.
As another alternative to the above preferred structure, the light incident portion 101 is a convex or conical structure protruding backward.
The utility model discloses a two kinds of preferred structural style of providing of income light portion 101, one kind is spotlight cup structure, and another kind is convex arch or cone structure backward, and the effect of these two kinds of structures all is with light gathering collimation to improve light utilization ratio. However, the light incident portion 101 of the present invention is not limited to these two structures, and may be other structures, and the light incident portion 102 is aimed at the light gathering and is incident thereon, so that other light incident structures with the light gathering function also belong to the protection scope of the present invention.
Further preferably, mounting portions 104 for positioning and mounting the low-beam primary optical element 1 are integrally connected to both left and right sides of the light-passing portion 102.
As a specific implementation manner, an included angle θ is formed between the main light emitting surface 1031 and the secondary light emitting surface 1032, and θ is greater than or equal to 100 ° and less than 180 °.
Preferably, the included angle theta is larger than or equal to 120 degrees and smaller than 160 degrees.
More preferably, the included angle θ is 150 °.
As can be seen from the enlarged view of fig. 11, the secondary light emitting surface 1032 is inclined downward and rearward with respect to the main light emitting surface 1031, so that the light rays incident to the low-beam cut-off line structure 105 are inclined upward and forward and incident to the secondary optical element 2, and the light rays are prevented from being incident to the lower portion of the secondary optical element 2 as much as possible, so as to weaken the dispersion phenomenon and improve the visual perception of the driver. Here, the secondary light emitting surface 1032 is inclined rearward and downward relative to the main light emitting surface 1031, so that an included angle θ is formed between the secondary light emitting surface 1032 and the main light emitting surface 1031, and the included angle θ is detected to be in a range of 100 ° or more and less than 180 °, preferably in a range of 120 ° or more and less than 160 °, and more preferably in a range of θ being 150 °.
As can be seen from fig. 12 to 16, another aspect of the present invention provides a vehicle lamp module, which comprises a light source (not shown in the drawings), a low beam primary optical element 1 and a secondary optical element 2 according to any one of the above technical solutions in sequence from back to front, wherein the light source is arranged corresponding to the light inlet portion 101 one to one, an included angle γ is formed between the light inlet optical axis 3 of the light inlet portion 101 and the secondary optical element optical axis 4 of the secondary optical element 2, and the low beam primary optical element 1 is gradually inclined from back to front to lower along the primary optical element optical axis 3.
It should be explained here that the secondary optical element optical axis 4 refers to a virtual straight line extending in the front-rear direction of the secondary optical element 2 and passing through the focal point of the secondary optical element 2. The light incident portion optical axis 3 is a virtual straight line extending in the front-rear direction of the light incident portion 101 and passing through the focal point of the light incident portion 101.
As can be seen from fig. 12 to 16, the light source, the low beam primary optical element 1 and the secondary optical element 2 are sequentially included from back to front in the vehicle lamp module of the present invention, the light source and the light entering portion 101 are arranged in a one-to-one correspondence, and as can be seen from fig. 15, the light entering portion optical axis 3 and the secondary optical element optical axis 4 form an included angle γ, at this time, the low beam primary optical element 1 is inclined to the front and lower direction, so that the light emitted from the secondary light emitting surface 1032 is deflected upward to the secondary optical element 2 as much as possible, and the light is prevented from being emitted from the lower portion of the secondary optical element 2 as much as possible.
As a specific structural form, the included angle gamma is more than or equal to 5 degrees.
More specifically, the angle γ is ≧ 15.
Further, the included angle γ is 20 °.
As described above, with reference to the front-back direction passing through the focal point of the secondary optical element 2, the light incident portion optical axis 3 forms an angle γ with the secondary optical element optical axis 4, the angle γ being equal to or greater than 5 °, preferably equal to or greater than 15 °, more preferably equal to or greater than 20 °, the angle γ ensuring that the position of the low-beam primary optical element 1 is low in the front-back direction and high in the up-down direction, and the low-beam cut-off line structure 105 is disposed at the secondary optical element optical axis 4.
As another specific structure form, the low-beam cut-off line structure 105 is disposed in an area 2mm above and below the optical axis 4 of the secondary optical element according to the light distribution requirement.
The third aspect of the present invention also provides a vehicle lamp, including the vehicle lamp module according to any one of the above technical solutions.
The fourth aspect of the present invention also provides a vehicle, including a lamp according to the above technical solution.
As can be seen from the above description, the low beam primary optical element 1 of the present invention sequentially comprises the light inlet portion 101, the light passing portion 102 and the light outlet portion 103 from back to front, the light outlet portion 103 comprises the main light outlet surface 1031 and the secondary light outlet surface 1032 connected to the main light outlet surface 1031, the low beam cut-off line structure 105 is disposed on the secondary light outlet surface 1032, and the secondary light outlet surface 1032 is suitable for refracting the light reaching the low beam cut-off line structure 105 to the upper front. The utility model discloses a light-emitting portion 103 of low-beam primary optical element 1 includes main light-emitting surface 1031 and inferior light-emitting surface 1032, and set up low-beam cut-off line structure 105 on inferior light-emitting surface 1032, utilize inferior light-emitting surface 1032 will shine to secondary optical element 2 is penetrated into after the light of low-beam cut-off line structure 105 upwards deflects, can avoid light to be emited by the latter half of secondary optical element 2 as far as possible, make the colour of the low-beam light and shade cut-off line 7 that forms improve, with this weakening chromatic dispersion, thereby can improve driver's visual perception.
The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, however, the present invention is not limited to the details of the above embodiments, and the technical concept of the present invention can be within the scope of the present invention to perform various simple modifications to the technical solution of the present invention, and these simple modifications all belong to the protection scope of the present invention.
It should be noted that the various technical features described in the above embodiments can be combined in any suitable manner without contradiction, and in order to avoid unnecessary repetition, the present invention does not need to describe any combination of the features.
In addition, various embodiments of the present invention can be combined arbitrarily, and the disclosed content should be regarded as the present invention as long as it does not violate the idea of the present invention.
Claims (17)
1. A low-beam primary optical element is characterized by sequentially comprising a light inlet part (101), a light passing part (102) and a light outlet part (103) from back to front, wherein the light outlet part (103) comprises a main light emitting surface (1031) and a secondary light emitting surface (1032) connected with the main light emitting surface (1031), a low-beam cut-off line structure (105) is arranged on the secondary light emitting surface (1032), and the secondary light emitting surface (1032) is suitable for refracting light emitted to the low-beam cut-off line structure (105) to the front and the top.
2. A low-beam primary optical element according to claim 1, wherein a transition surface (1033) is provided between the main light exit surface (1031) and the secondary light exit surface (1032), said transition surface (1033) being adapted to smoothly connect the main light exit surface (1031) and the secondary light exit surface (1032).
3. A low-beam primary optical element according to claim 2, characterized in that the transition surface (1033) is a circular arc surface.
4. A low-beam primary optical element according to claim 1, wherein the intersection of the lower surface (1021) of the light exit portion (102) and the secondary light exit surface (1032) forms the low-beam cut-off line structure (105).
5. A low-beam primary optical element according to claim 1, wherein the secondary light exit surface (1032) is gradually inclined from top to bottom in a downward and rearward direction.
6. A low-beam primary optical element according to claim 1, wherein the light entry portion (101) is a light-gathering cup structure, the light entry end of which is a plane or the rear portion of which is provided with a groove in which a curved surface projecting rearward is provided; or
The light inlet part (101) is of a convex or conical structure protruding backwards.
7. A low-beam primary optical element according to claim 1, wherein mounting portions (104) are integrally connected to both left and right sides of the light passing portion (102).
8. A low-beam primary optical element according to any one of claims 1 to 7, wherein an angle θ is formed between the main light exit surface (1031) and the secondary light exit surface (1032), and θ is ≦ 100 ° < 180 °.
9. A low beam primary optical element as claimed in claim 8, wherein the angle θ is 120 ° ≦ θ < 160 °.
10. A low-beam primary optical element as claimed in claim 9, characterized in that the angle θ is 150 °.
11. A vehicle lamp module, characterized by comprising a light source, a low-beam primary optical element (1) according to any one of claims 1 to 10 and a secondary optical element (2) in sequence from rear to front, the light source being arranged in one-to-one correspondence with the light entry portion (101), the light entry portion optical axis (3) of the low-beam primary optical element (1) and the secondary optical element optical axis (4) forming an included angle γ, and the low-beam primary optical element (1) being gradually inclined from rear to front and downward along the light entry portion optical axis (3).
12. The vehicle lamp module according to claim 11, wherein the included angle γ is greater than or equal to 5 °.
13. The vehicle lamp module according to claim 12, wherein the included angle γ is greater than or equal to 15 °.
14. The lamp module as claimed in claim 13, wherein the included angle γ is 20 °.
15. The vehicle lamp module according to claim 11, wherein the low beam cut-off line structure (105) is disposed in an area of 2mm above and below the optical axis (4) of the secondary optical element.
16. A vehicular lamp characterized by comprising the vehicular lamp module according to any one of claims 11 to 15.
17. A vehicle comprising a lamp module according to claim 16.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020370212.XU CN211822200U (en) | 2020-03-20 | 2020-03-20 | Low-beam primary optical element, car lamp module, car lamp and car |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020370212.XU CN211822200U (en) | 2020-03-20 | 2020-03-20 | Low-beam primary optical element, car lamp module, car lamp and car |
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| CN211822200U true CN211822200U (en) | 2020-10-30 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021184997A1 (en) * | 2020-03-20 | 2021-09-23 | 华域视觉科技(上海)有限公司 | Low-beam primary optical element, vehicle lamp module, vehicle lamp, and vehicle |
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2020
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021184997A1 (en) * | 2020-03-20 | 2021-09-23 | 华域视觉科技(上海)有限公司 | Low-beam primary optical element, vehicle lamp module, vehicle lamp, and vehicle |
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