CN111735027A - Car light module, vehicle headlamp and vehicle - Google Patents
Car light module, vehicle headlamp and vehicle Download PDFInfo
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- CN111735027A CN111735027A CN201911175135.0A CN201911175135A CN111735027A CN 111735027 A CN111735027 A CN 111735027A CN 201911175135 A CN201911175135 A CN 201911175135A CN 111735027 A CN111735027 A CN 111735027A
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- light
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- aspheric lens
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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
- F21S41/10—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
- F21S41/19—Attachment of light sources or lamp holders
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
- F21W2102/00—Exterior vehicle lighting devices for illuminating purposes
- F21W2102/10—Arrangement or contour of the emitted light
- F21W2102/13—Arrangement or contour of the emitted light for high-beam region or low-beam region
- F21W2102/135—Arrangement or contour of the emitted light for high-beam region or low-beam region the light having cut-off lines, i.e. clear borderlines between emitted regions and dark regions
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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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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
The invention relates to a vehicle lighting device, and discloses a vehicle lamp module which comprises a light source (1), a light-condensing part (2) and a light-emitting element, wherein the light-emitting element is an aspheric lens (3), the light-condensing part (2) comprises at least one light-condensing element (21), the light source (1) corresponds to the corresponding light-condensing element (21), and light rays emitted by the light source (1) can be converged by the light-condensing element (21), then emitted to a light-in surface (31) of the aspheric lens (3) and emitted from a light-emitting surface (32) of the aspheric lens (3). In addition, the invention also discloses a vehicle headlamp and a vehicle. The vehicle lamp module is simple in structure, and the light shape of the formed light distribution pattern is uniform.
Description
Technical Field
The invention relates to a vehicle lighting device, in particular to a vehicle lamp module, and further relates to a vehicle headlamp and a vehicle.
Background
The importance of automotive lighting systems, in particular automotive headlamps, is self-evident for night driving. When the automobile runs at a high speed, a dazzling high beam may cause the driver to lose control over the automobile, and further unpredictable dangers occur. Therefore, the vehicle headlamps are required to provide a wide visual range and good visual conditions for the driver, and also to affect other road participants as little as possible without causing glare to the other road participants. With the technical development, the matrix type LED headlamp becomes one of the future development directions of the automobile lamp, the light source of the matrix type LED headlamp is composed of a plurality of LEDs, the LEDs are arranged in a certain manner to form an array pattern, and according to the positions of the vehicles and pedestrians in the field of view in front of the vehicles, the matrix type LED headlamp can extinguish the LEDs in the corresponding area to avoid the dazzling of the pedestrians or the drivers.
In the prior art, a general matrix type vehicle lamp module adopts a matrix type arranged light source and a light condensing element corresponding to the light source to solve the technical problem that a driver is dazzled by high beam. Application No. 201820529985.0, 13.4.2018, the utility model discloses an optical module and a car light, the condenser that this optical module adopted includes a plurality of light guide members, the income light end of each light guide member sets up with each light source one-to-one, the light-emitting end gathers together and forms curved light-emitting portion, this condenser has the convergence effect to the light that the light source sent, and make the light that adjacent light source sent have certain integration at the play plain noodles of condenser, thus make linking between the facula that the light that each light source sent formed more even, but this condenser structure is very complicated, need to guarantee the relative position precision between each light guide member, the machining precision of condenser is difficult to guarantee; in addition, the installation structure of the condenser is very complicated, and the accumulated installation error is very large, so that the precision of an optical system of the optical module is low, and the light shape effect of the vehicle lamp is influenced.
Along with the development of the automobile industry, the matrix type automobile lamp not only requires to realize the ADB self-adaptive high beam function, but also further improves the uniformity of the light shape of the automobile lamp, enhances the heat dissipation performance of the automobile lamp and reduces the weight and the size of the automobile lamp.
In view of the above-mentioned shortcomings of the prior art, a new vehicle lamp module is needed.
Disclosure of Invention
The first technical problem to be solved by the invention is to provide a car lamp module which is simple in structure and uniform in light shape.
A second object of the present invention is to provide a vehicle headlamp having a simple structure and a uniform light shape.
The third technical problem to be solved by the invention is to provide a vehicle, which has uniform light shape of lamp light and lower cost.
In order to achieve the above object, a first aspect of the present invention provides a vehicle lamp module, which includes a light source, a light-condensing portion and a light-emitting element sequentially arranged along a light-emitting direction, where the light-emitting element is an aspheric lens, the light-condensing portion includes at least one light-condensing element, the light source corresponds to the light-condensing element, and light emitted by the light source can be condensed by the light-condensing element, then emitted to a light-incident surface of the aspheric lens, and emitted from a light-emitting surface of the aspheric lens.
Preferably, the light emitting surface of the aspheric lens is configured such that a central transverse section of the aspheric lens intersects with the light emitting surface of the aspheric lens to form a central transverse sectional line, the central transverse sectional line has a first curvature boundary point and a second curvature boundary point, the first curvature boundary point is any point between a midpoint of the central transverse sectional line and a left end point, the second curvature boundary point is any point between the midpoint of the central transverse sectional line and a right end point, curvatures of the central transverse sectional line from the first curvature boundary point to the second curvature boundary point are equal, and curvatures of the central transverse sectional line from the first curvature boundary point to the left end point and curvatures of the central transverse sectional line from the second curvature boundary point to the right end point are both increased and then decreased.
Preferably, the curvature of the left end point of the central transverse section line and/or the curvature of the right end point of the central transverse section line are equal to the curvature of the first curvature boundary point to the second curvature boundary point of the central transverse section line.
As a preferable configuration, the light emitting surface of the aspheric lens is a curved surface convex forward, the light emitting surface of the aspheric lens is further configured such that any longitudinal section of the aspheric lens intersects with the light emitting surface of the aspheric lens to form a longitudinal sectional line, the longitudinal sectional line has a curvature change boundary point, the curvature change boundary point is any point between a middle point and an upper end point of the longitudinal sectional line, curvatures from the curvature change boundary point to the lower end point of the longitudinal sectional line are equal, curvatures from the curvature change boundary point to the upper end point of the longitudinal sectional line are equal, and a curvature of the upper end point of the longitudinal sectional line is smaller than a curvature of the lower end point of the longitudinal sectional line.
As another preferred structure form, the light emitting surface of the aspheric lens is a curved surface protruding forwards, the light emitting surface of the aspheric lens is further configured such that any longitudinal section of the aspheric lens intersects with the light emitting surface of the aspheric lens to form a longitudinal sectional line, the longitudinal sectional line has a curvature change boundary point, the curvature change boundary point is any point between a middle point and an upper end point of the longitudinal sectional line, the curvatures from the curvature change boundary point to the lower end point of the longitudinal sectional line are equal, and the curvature from the curvature change boundary point to the upper end point of the longitudinal sectional line gradually decreases.
Preferably, the light incident surface of the aspheric lens protrudes rearward along the optical axis direction of the aspheric lens.
Preferably, the light-condensing portion includes a plurality of light-condensing elements, and the light-condensing elements may be arranged in a matrix of a single row and a plurality of columns or in a matrix of a plurality of rows and a plurality of columns.
More preferably, the light condensing element is a plano-convex lens, wherein the light incident surface of the light condensing element is a plane, and the light emergent surface of the light condensing element is a forward convex curved surface.
Specifically, the car light module is still including being used for the installation the mounting bracket of spotlight portion, be equipped with locating pin and mounting hole on the mounting bracket, the mounting bracket is equipped with the turn-ups all around, spotlight portion with mounting bracket integrated into one piece or assembly connection.
Preferably, the light source is provided in front of a focal point of the condensing element.
More preferably, the light source is disposed on a focal plane of the aspherical lens.
The invention provides a vehicle headlamp in a second aspect, which comprises the vehicle lamp module in any one of the technical solutions of the first aspect, wherein the vehicle lamp modules are arranged and distributed in a longitudinal, transverse or inclined manner.
A third aspect of the invention provides a vehicle including the vehicle headlamp described in the second aspect.
In the basic technical scheme of the invention, light rays emitted by the light source are converged by the light-converging part and then emitted to the light-in surface of the aspheric lens and then emitted from the light-out surface of the aspheric lens, and the light-converging part is at least provided with one light-converging element.
Further advantages of the present invention, as well as the technical effects of preferred embodiments, are further described in the following detailed description.
Drawings
FIG. 1 is a schematic structural diagram of a vehicular lamp module according to an embodiment of the present invention;
FIG. 2 is a second schematic structural diagram of an embodiment of a vehicular lamp module according to the present invention;
FIG. 3 is a schematic view of the central longitudinal section of FIG. 2;
FIG. 4 is a schematic view of the central transverse cross-section of FIG. 2;
FIG. 5 is one of the schematic structural views of one embodiment of the light-concentrating portion of the present invention;
fig. 6 is a partial enlarged view at a of fig. 5;
FIG. 7 is a second schematic structural view of a light-collecting portion according to an embodiment of the present invention;
FIG. 8 is a schematic view of the longitudinal cross-section of FIG. 5;
FIG. 9 is a schematic view of the transverse cross-section of FIG. 5;
FIG. 10 is a schematic diagram of a central longitudinal cross-section of one embodiment of an aspheric lens of the present invention;
FIG. 11 is a schematic central transverse cross-sectional view of one embodiment of an aspheric lens of the present invention;
FIG. 12 is a schematic diagram of another embodiment of an aspheric lens of the present invention;
FIG. 13 is a schematic view of a light pattern projected by a prior art vehicle lamp module;
fig. 14 is a schematic view of a light pattern projected by the vehicle lamp module according to the present invention.
Description of the reference numerals
1 light source
2 light-gathering part 21 light-gathering element
3 aspheric lens 31 light incident surface
32 longitudinal sectional line of light-emitting surface 33
34 central transverse sectional line 35 optical axis
4 mounting bracket 41 locating pin
42 mounting hole 43 flanging
Detailed Description
The following detailed description of embodiments of the invention refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation.
In the description of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the terms "connected" and "disposed" are to be interpreted broadly, e.g., as a fixed connection, a detachable connection, or an integral connection; either directly or indirectly through intervening media, either internally or in any combination thereof. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
It should be understood that, along the light emitting direction, "front" refers to the end where the aspheric lens 3 is located, "rear" refers to the end where the light source 1 is located, "upper" refers to the upper side along the light emitting direction when the vehicle lamp module is normally installed, "lower" refers to the lower side along the light emitting direction when the vehicle lamp module is normally installed, "left" refers to the left side along the light emitting direction when the vehicle lamp module is normally installed, "right" refers to the right side along the light emitting direction when the vehicle lamp module is normally installed, "longitudinal section" refers to any section parallel to the optical axis 35 of the aspheric lens 3 and vertically extending from the upper edge to the lower edge of the aspheric lens 3, "longitudinal sectional line 33" is a curve formed by the intersection of the longitudinal section and the light emitting surface 32 of the aspheric lens 3, "transverse section" is perpendicular to the longitudinal section, "transverse sectional line" is a curve formed by the intersection of the transverse section and the light emitting surface 32 of, the "central longitudinal section" is a longitudinal section passing through the optical axis 35 of the aspheric lens 3, "central transverse section" is a transverse section passing through the optical axis 35 of the aspheric lens 3, "central longitudinal sectional line" is a curve formed by the intersection of the central longitudinal section and the light exit surface 32 of the aspheric lens 3, "central transverse sectional line 34" is a curve formed by the intersection of the central transverse section and the light exit surface 32 of the aspheric lens 3, "midpoint of the central transverse sectional line 34" is an intersection of the central transverse sectional line 34 and the optical axis 35, wherein the optical axis 35 is an axis passing through the focal point of the aspheric lens 3 and extending in the front-rear direction. The terminology used is for the purpose of describing the invention only and is for the purpose of simplifying the description based on the orientation or positional relationship shown in the drawings, and is not intended to indicate or imply that the apparatus or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and is therefore not to be construed as limiting the invention.
Referring to fig. 1 to 4, a vehicle lamp module according to a basic embodiment of the present invention includes a light source 1, a light-gathering part 2, and a light-emitting element sequentially arranged along an emitting direction of the light source 1, wherein the light source 1 may be an LED light-emitting chip, an OLED light-emitting chip, or a light-emitting chip based on a laser light source; the light-gathering part 2 may include at least one light-gathering element 21, each light-gathering element 21 corresponds to one light source 1 behind, and the light-emitting element adopts an aspheric lens 3. The divergent light emitted from the light source 1 is converged by the light converging element 21, then emitted to the light incident surface 31 of the aspheric lens 3, and emitted from the light emitting surface 32 of the aspheric lens 3. By adjusting the surface curvature of the light exit surface 32 of the aspheric lens 3, the refractive power of the aspheric lens 3 can be changed, so that a desired high beam light distribution pattern is projected on the light screen. When the light-gathering part 2 only comprises one light-gathering element 21, the vehicle lamp module can realize a basic high beam function and obtain a high beam shape according with regulations, when the light-gathering part 2 comprises a plurality of light-gathering elements 21, the light source 1 corresponding to the rear of each light-gathering element 21 is independently addressed, the high beam illumination area is subdivided into a plurality of illumination areas, when the vehicle-mounted sensing system detects a vehicle coming to an opposite lane, the light source 1 corresponding to the area is closed, the high beam is effectively prevented from dazzling, and a good illumination effect is realized in other areas of the road surface, so that the self-adaptive high beam function is realized.
Preferably, the central transverse section of the aspheric lens 3 intersects with the light exit surface 32 of the aspheric lens 3 to form a central transverse sectional line 34, the central transverse sectional line 34 has a first curvature boundary point and a second curvature boundary point, the first curvature boundary point is any point between the midpoint of the central transverse sectional line 34 and the left end point, the second curvature boundary point is any point between the midpoint of the central transverse sectional line 34 and the right end point, the first curvature boundary point and the second curvature boundary point may be arranged symmetrically left and right, or may be arranged asymmetrically according to a desired light shape, or may be arranged on the midpoint of the central transverse sectional line 34 as shown in fig. 11. For convenience of description, a curve from the first curvature boundary point to the second curvature boundary point of the central transverse transversal cut line 34 is referred to as a middle curve, a curve from the first curvature boundary point to the left end point of the central transverse cut line 34 is referred to as a left curve, a curve from the second curvature boundary point to the right end point of the central transverse cut line 34 is referred to as a right curve, curvatures of the middle curves are equal, curvatures of the left curve and the right curve are changed according to a rule that the curvatures of the left curve and the right curve are increased and then decreased in a direction away from the optical axis 35, and preferably, the curvatures are decreased to be equal to the curvature of the middle curve. More vividly, in order to facilitate the description of the curvature change of the light-emitting surface 32 of the aspherical lens 3 of the present invention, a virtual spherical lens is constructed based on the aspherical lens 3, the spherical lens having a constant curvature from the center to the edge of the lens and the curvature of the center of the light-emitting surface of the spherical lens is the same as that of the center of the light-emitting surface 32 of the aspherical lens 3, as shown in fig. 10 and 11, the solid line in the figure is the central longitudinal sectional line 33 or the central transverse sectional line 34 of the aspherical lens 3, and the dotted line is the longitudinal sectional line or the transverse sectional line at the corresponding position of the spherical lens. Compared with the conventional spherical lens, because the curvature change rule of the middle curve of the central transverse transversal line 34 of the aspheric lens 3 is the same as that of the middle curve of the transverse transversal line at the corresponding position of the spherical lens, and the curvatures of the left part curve and the right part curve of the central transverse transversal line 34 of the aspheric lens 3 are both larger than those of the left part curve and the right part curve of the transverse transversal line at the corresponding position of the spherical lens, the light ray exit directions of the left part and the right part of the aspheric lens 3 exit towards the direction close to the optical axis 35; since the curvatures of the left and right curves of the central transversal sectional line 34 of the aspheric lens 3 increase and decrease first and then along the direction away from the optical axis 35, the left and right outgoing light beams of the aspheric lens 3 increase and decrease first and then along the direction away from the optical axis 35, that is, when the curvatures increase, the light beams have a tendency to be projected gradually toward the direction close to the optical axis 35, and when the curvatures decrease, the light beams are projected gradually toward the direction away from the optical axis 35 by being projected toward the direction close to the optical axis 35. The curvature change rule of the central transverse sectional line 34 enables the emergent light rays in the left and right directions of the emergent surface of the aspheric lens 3 to integrally realize the effects of high brightness of the middle area, fuzzy boundaries among light spots and improved light shape uniformity.
Further preferably, referring to fig. 10, any longitudinal section of the aspheric lens 3 intersects with the light-emitting surface 32 of the aspheric lens 3 to form a longitudinal sectional line 33, the longitudinal sectional line 33 has a curvature change boundary point, the curvature change boundary point may be any point between a middle point and an upper end point of the longitudinal sectional line 33, and a position of the curvature change boundary point may be adjusted according to a desired light shape. For convenience of description, a curve from a curvature boundary point of the longitudinal section line 33 to an upper end point is referred to as an upper curve, and a curve from a curvature boundary point of the longitudinal section line 33 to a lower end point is referred to as a middle-lower curve. As a preferable configuration, the curvatures of the middle and lower curves of the longitudinal section line 33 are equal, the curvatures of the upper curves of the longitudinal section line 33 are equal, and the curvature of the upper end point of the longitudinal section line 33 is smaller than the curvature of the lower end point of the longitudinal section line 33; as another preferable configuration, the curvatures of the middle and lower curves of the longitudinal section line 33 are equal, and the curvature of the upper curve of the longitudinal section line 33 is gradually reduced in a direction away from the optical axis 35. More vividly, the variation law of the middle-lower part of any one longitudinal section 33 of the aspherical lens 3 is the same as that of the middle-lower part of the longitudinal section at the corresponding position of the spherical lens, with respect to the conventional spherical lens, and the curvature of the upper curve of the longitudinal section 33 of the aspherical lens 3 is smaller than that of the upper curve of the longitudinal section at the corresponding position of the spherical lens. If a traditional spherical lens is adopted to project light rays, the light rays are emitted out in a direction basically parallel to the optical axis 35 of the spherical lens, the formed high beam shape is shown in figure 13, the high beam is symmetrically distributed in the upper and lower nearby areas of the horizontal 0-degree line and does not meet the regulation requirement of the high beam shape; referring to fig. 14, if the aspheric lens 3 is used to project light, the same light is emitted from the upper curve of the longitudinal sectional line 33 of the aspheric lens 3 in a direction farther from the optical axis 35 than from the upper curve of the longitudinal sectional line of the spherical lens, most of the formed high beam shape is located above the horizontal 0 degree line and has a large upper diffusion angle, and the range of the light shape meets the legislative requirements of the high beam shape.
Preferably, the aspheric lens 3 is a biconvex lens, and the light incident surface 31 thereof protrudes backward along the direction of the optical axis 35 of the aspheric lens 3, so that the focus point formed by the sunlight when irradiating the aspheric lens 3 is closer to the aspheric lens 3 and farther from the bezel, thereby avoiding the bezel from being burned out. Of course, the aspherical lens 3 may be a plano-convex lens, a meniscus lens, or the like.
The aspheric lens in the preferred embodiment of the present invention is based on a spherical lens, the light emitting surface 32 of the aspheric lens 3 is configured such that the curvature of the middle curve of the central transversal cut line 34 is equal to the curvature of the transversal cut line at the corresponding position of the spherical lens, the curvatures of the left curve of the central transversal cut line 34 and the right curve of the central transversal cut line 34 of the aspheric lens 3 are both increased and then decreased along the direction away from the optical axis 35 to be equal to the curvature of the middle curve, i.e. the left end point coincides with the corresponding left end point of the spherical lens, and the right end point coincides with the corresponding right end point of the spherical lens; the curvature of the middle-lower curve of the longitudinal sectional line 33 of the aspheric lens 3 is equal to the curvature of the spherical lens, and the curvature of the upper curve of the longitudinal sectional line 33 of the aspheric lens 3 is gradually reduced in a direction away from the optical axis 35. For the aspherical lens 3 in the preferred embodiment of the present invention, the light exit surface 32 of the aspherical lens 3 may be constructed in the following manner: the central longitudinal sectional line of the aspheric lens 3 is used as a contour line, the central transverse sectional line 34 of the aspheric lens 3 is used as a guide line to sweep to form a curved surface, or the central transverse sectional line 34 of the aspheric lens 3 is divided into a plurality of line segments, the longitudinal sectional line 33 of the aspheric lens 3 passing through the dividing point of each line segment is used as a contour line, the line segment of the corresponding central transverse sectional line 34 is used as a guide line to sweep, and the plurality of sweeping surfaces are connected to form the light-emitting surface 32, so that the light-emitting surface 32 can be divided into a plurality of sweeping surfaces, the parameters of each sweeping surface can be conveniently adjusted in the design process of the light-emitting surface 32 to finely adjust the formed light shape, the longitudinal sectional line 33 used as the contour line in the form comprises a plurality of lines, under the condition that the curvature of the upper curve of the longitudinal sectional line 33 is smaller than the curvature of the longitudinal, the curvature of the upper curve of each of the vertical stubs 33 may be different, and the position of the curvature change boundary point of each of the vertical stubs 33 may be adjusted according to a desired light shape.
Under the structure of the aspheric lens 3 in the preferred embodiment of the present invention, a light source 1 is disposed at the focal point of the aspheric lens 3, and the refraction law of the aspheric lens 3 is more vividly described in conjunction with the light emitted by the light source 1: referring to fig. 10, since the curvatures of the middle and lower curves of the longitudinal sectional line 33 of the aspheric lens 3 are equal, the light ray L1 refracted through the middle and lower portions of the light exit surface 32 of the aspheric lens 3 is substantially parallel to the direction of the optical axis 35 of the aspheric lens 3; since the curvature of the upper curve of the longitudinal sectional line 33 of the light exit surface 32 of the aspheric lens 3 gradually decreases in the direction away from the optical axis 35, the light ray L2 refracted by the upper portion of the light exit surface 32 of the aspheric lens 3 exits obliquely upward with respect to the direction of the optical axis 35; referring to fig. 11, since the first curvature boundary point and the second curvature boundary point of the central transverse sectional line 34 are both disposed at the midpoint of the central transverse sectional line 34, and the curvatures of the left part curve and the right part curve of the central transverse sectional line 34 are both increased and then decreased in the direction away from the optical axis 35 with respect to the midpoint of the central transverse sectional line 34, the light ray L3 exits in the direction close to the optical axis 35 since the curvature of the location of the refraction point of L3 is greater than the curvature of the location of the midpoint; since the curvature of the position of the refraction point of the light ray L4 is larger than the curvature of the position of the refraction point of the light ray L3, the light ray L4 exits in a direction closer to the optical axis 35 than the light ray L3; since the curvature of the position of the refraction point of the light ray L5 is smaller than the curvature of the position of the refraction point of the light ray L4, the light ray L5 exits in a direction away from the optical axis 35 than the light ray L4; since the curvature of the position of the refraction point of the light ray L6 is smaller than that of the position of the refraction point of the light ray L5, the light ray L6 is emitted further away from the optical axis 35 than the light ray L5, i.e., in a direction substantially parallel to the optical axis 35, and thus the aspherical lens 3 can diffuse the received light rays upward and project the light rays into a brighter, more uniform light shape in the middle. Although the optical path diagrams of fig. 10 and 11 are the optical paths in which the light source 1 is directly incident on the aspheric lens 3, and no light is condensed by the condensing element 21, the light emitted from the light source 1 is condensed by the condensing element 21 and then emitted to the aspheric lens 3 similarly follows the above-mentioned refraction law, when the condensing portion 2 includes a row of condensing elements 21, correspondingly, one light source 1 is corresponding to the rear of each condensing element 21, the light emitted from each light source 1 is condensed by the condensing element 21 and then emitted to the aspheric lens 3 similarly follows the above-mentioned refraction law, so that a far light form with blurred boundaries and high uniformity among the light spots can be formed by projection through the aspheric lens 3, and most of the formed far light form is located above the horizontal 0-degree line and has a large upward diffusion angle.
Further preferably, referring to fig. 10 to 12, the aspheric lens 3 has a light exit surface 31 and a light entrance surface 32, the light entrance surface 32 is aspheric, and the surface may have a vertical bar structure, a horizontal bar structure or a grid structure, which further diffuses light. More preferably, the aspheric lens 3 is a biconvex lens, and the light incident surface 31 thereof protrudes backward along the direction of the optical axis 35 of the aspheric lens 3, so that the focus point formed by the sunlight when the sunlight irradiates the aspheric lens 3 is closer to the aspheric lens 3 and farther away from the bezel, thereby avoiding the bezel from being burned out. Of course, the aspherical lens 3 may be a plano-convex lens, a meniscus lens, or the like.
Preferably, referring to fig. 5 and 6, the light-gathering part 2 may include a plurality of light-gathering elements 21, and the light-gathering elements 21 may be arranged in a single row and multiple columns matrix or in multiple rows and multiple columns matrix, the corresponding light source 1 behind each light-gathering element 21 is individually addressed, the high beam illumination area is subdivided into a plurality of illumination areas, and when the vehicle-mounted sensing system detects an oncoming vehicle, the light source 1 in the corresponding area is turned off, so as to implement the adaptive high beam function.
Preferably, referring to fig. 8 and 9, the light condensing element 21 is a plano-convex lens, wherein the light incident surface of the light condensing element 21 is a plane surface, and the light emergent surface is a forward convex curved surface. Of course, the light collecting element 21 may be a plano-convex, biconvex, concave-convex, or concave-flat lens. The light condensing element 21 is preferably a plano-convex lens, and compared with a light condenser with a light condensing cup structure in the prior art for condensing light, the light condensing element 21 is simple in structure and high in light efficiency; under the condition of the same light utilization rate, the distance between the light source 1 and the light incident surface of the light condensing element 21 can be properly increased, the heat dissipation effect of the car lamp module is improved, the light source 1 is arranged behind the light incident surface of the light condensing element 21 by 0.1-5 mm, and the distance is preferably 0.5 mm; compared with the light condensing element 21 with the convex light incident surface, the light incident surface of the light condensing element 21 adopts a plane, so that the light rays emitted to the light incident surface are not easy to generate total reflection, and the light efficiency is further improved.
Specifically, referring to fig. 7, the vehicle lamp module of the present invention further includes a mounting bracket 4 for mounting the light-gathering part 2, wherein the mounting bracket 4 is provided with a positioning pin 41 and a mounting hole 42 for positioning and mounting the light-gathering part 2 on other components, such as a heat sink; the periphery of the mounting frame 4 is provided with a flanging 43 so as to enhance the strength of the mounting frame 4; the light gathering part 2 and the mounting frame 4 can be integrally formed or assembled.
Specifically, the light source 1 is disposed in front of the focal point of the light condensing element 21, and the distance is preferably 0.5mm, compared with the case that the light source 1 is disposed on the focal point of the light condensing element 21, light rays are refracted by the light emitting surface of the light condensing element 21 and then spread to the periphery, and are refracted by the aspheric lens 3 to be beneficial to forming a final high beam shape, and the light source 1 is disposed in front of the focal point of the light condensing element 21 to further improve the light efficiency.
More specifically, the light source 1 is disposed on the focal plane of the aspheric lens 3 to make the light distribution pattern projected on the light screen clearer.
The vehicle lamp module in the preferred embodiment of the invention comprises a light source 1, a light-condensing part 2 and a light-emitting element which are sequentially arranged along the light-emitting direction, wherein the light-condensing part 2 comprises a row of light-condensing elements 21 distributed in a matrix manner, the light-condensing elements 21 are plano-convex lenses, and the light source 1 is arranged behind the light-condensing elements 21 and corresponds to each light-condensing element 21 one by one; the light exit element is an aspherical lens 3 in the preferred embodiment described above. This car light module is still including being used for the installation the mounting bracket 4 of spotlight portion 2 is equipped with locating pin 41 and mounting hole 42 on the mounting bracket 4 in order to be connected with parts such as radiator, and mounting bracket 4 is equipped with turn-ups 43 all around in order to strengthen the intensity of mounting bracket 4, and spotlight portion 2 and mounting bracket 4 be assembled between/be connected, perhaps this spotlight portion 2 and the direct integrated into one piece of mounting bracket 4. When the lamp module is mounted, the light source 1 can be disposed 0.5mm in front of the focal point of the light collecting element 21. The vehicle lamp module comprises a light source 1, a light condensing part 2, an aspheric lens 3, a light source 1, a light collecting element 21, a far-light illuminating area, a plurality of illuminating areas, a vehicle-mounted sensing system and a vehicle-mounted sensing system, wherein the light source 1 is started, light emitted by the light source 1 is converged by the light condensing part 2 and then emitted to the aspheric lens 3, the received light is upwards diffused and projected to form a brighter and more uniform light shape in the middle, the light source 1 corresponding to the rear of each light condensing element 21 of the vehicle lamp module is independently addressed, the far-light illuminating area is subdivided into the illuminating areas, when the vehicle-mounted sensing system detects a vehicle coming to a lane, the light. The vehicle lamp module in the preferred embodiment of the invention not only can realize the function of self-adaptive high beam, but also adopts the light condensing element 21 as the light condensing part 2, compared with the light condenser in the prior art, the light condensing device has higher light effect, small occupied space, simple structure, smaller size and lighter weight, the light condensing element 21 and the mounting rack are integrally formed, the mounting precision of the vehicle lamp module can be further improved, the relative position of the light condensing part 2 and the aspheric lens 3 only needs to be adjusted during dimming, so that the optical precision of the vehicle lamp module is improved, and the aspheric lens 3 with the changed curvature of the light emergent surface 32 is used as the light emergent element, so that the high beam with higher brightness and higher uniformity in the middle area can be formed, and further, the light shapes with various shapes can be flexibly obtained by adjusting the curvature of the light emergent surface 32 of the aspheric lens 3.
The embodiment of the vehicle headlamp comprises at least one lamp module in any one of the technical schemes, and the lamp modules can be vertically distributed, horizontally distributed or obliquely distributed. Embodiments of the vehicle headlamp of the present invention may include the lamp module described in all of the above embodiments, and thus have at least all of the benefits provided by the above embodiments of the lamp module.
Embodiments of the vehicle of the present invention may include the vehicle headlamp described in the embodiments above, and thus have at least all of the benefits associated with embodiments of the vehicle headlamp described above.
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 individual specific technical features in any suitable way. The invention is not described in detail in order to avoid unnecessary repetition. Such simple modifications and combinations should be considered within the scope of the present disclosure as well.
Claims (13)
1. The utility model provides a car light module which characterized in that, includes light source (1), spotlight portion (2) and the light-emitting component that sets gradually along the light-emitting direction, the light-emitting component is aspherical lens (3), spotlight portion (2) include at least one spotlight component (21), light source (1) and corresponding spotlight component (21) correspond, the light that light source (1) sent can be through spotlight component (21) after assembling the directive to go into face (31) of aspherical lens (3), and follow the play plain noodles (32) of aspherical lens (3) are jeted out.
2. The vehicle lamp module according to claim 1, wherein the light emitting surface (32) of the aspheric lens (3) is configured such that a central transverse section of the aspheric lens (3) intersects with the light emitting surface (32) of the aspheric lens (3) to form a central transverse transversal cut line (34), the central transversal cut line (34) has a first curvature boundary point and a second curvature boundary point, the first curvature boundary point is any point between a midpoint of the central transversal cut line (34) and a left end point, the second curvature boundary point is any point between a midpoint of the central transversal cut line (34) and a right end point, the curvatures of the central transversal cut line (34) from the first curvature boundary point to the second curvature boundary point are equal, the curvatures of the central transversal cut line (34) from the first curvature boundary point to the left end point and the curvatures of the central transversal cut line (34) from the second curvature boundary point to the right end point are both increased and decreased.
3. The vehicle lamp module according to claim 2, wherein the curvature of the left end point of the central transverse transversal line (34) and/or the curvature of the right end point of the central transverse transversal line (34) is equal to the curvature of the first curvature boundary point to the second curvature boundary point of the central transverse transversal line (34).
4. The vehicle lamp module according to claim 3, wherein the light emitting surface (32) of the aspheric lens (3) is a forward convex curved surface, the light exit surface (32) of the aspherical lens (3) is further configured such that any longitudinal section of the aspherical lens (3) intersects the light exit surface (32) of the aspherical lens (3) to form a longitudinal sectional line (33), the longitudinal section line (33) has a curvature change boundary point which is any point between a midpoint of the longitudinal section line (33) and an upper end point, the curvatures from the curvature change boundary point to the lower end point of the longitudinal section line (33) are equal, the curvatures from the curvature change boundary point to the upper end point of the longitudinal section line (33) are equal, and the curvature of the upper end point of the longitudinal section line (33) is smaller than the curvature of the lower end point of the longitudinal section line (33).
5. The vehicle lamp module according to claim 3, wherein the light emitting surface (32) of the aspheric lens (3) is a forward convex curved surface, the light emitting surface (32) of the aspheric lens (3) is further configured such that any longitudinal section of the aspheric lens (3) intersects with the light emitting surface (32) of the aspheric lens (3) to form a longitudinal sectional line (33), the longitudinal sectional line (33) has a curvature change boundary point, the curvature change boundary point is any point between the middle point and the upper end point of the longitudinal sectional line (33), the curvatures of the longitudinal sectional line (33) from the curvature change boundary point to the lower end point are equal, and the curvatures of the longitudinal sectional line (33) from the curvature change boundary point to the upper end point are gradually reduced.
6. The vehicle lamp module according to any one of claims 1 to 5, wherein the light incident surface (31) of the aspheric lens (3) is convex rearward in a direction of an optical axis (35) of the aspheric lens (3).
7. The vehicle lamp module according to any one of claims 1 to 5, wherein the light-condensing portion (2) comprises a plurality of light-condensing elements (21), and the light-condensing elements (21) can be arranged in a matrix of a single row and a plurality of columns or in a matrix of a plurality of rows and a plurality of columns.
8. The vehicle lamp module according to any one of claims 1 to 5, wherein the light condensing element (21) is a plano-convex lens, wherein the light incident surface of the light condensing element (21) is a plane surface, and the light emergent surface of the light condensing element (21) is a forward convex curved surface.
9. The car light module of any one of claims 1 to 5, characterized by further comprising a mounting bracket (4) for mounting the light gathering part (2), wherein the mounting bracket (4) is provided with a positioning pin (41) and a mounting hole (42), a flange (43) is arranged around the mounting bracket (4), and the light gathering part (2) and the mounting bracket (4) are integrally formed or assembled and connected.
10. The vehicle lamp module according to any one of claims 1 to 5, wherein the light source (1) is provided in front of a focal point of the light condensing element (21).
11. The vehicle lamp module according to any one of claims 1 to 5, wherein the light source (1) is disposed on a focal plane of the aspheric lens (3).
12. A vehicle headlamp comprising at least one lamp module according to any one of claims 1 to 11, wherein the lamp modules are arranged in a longitudinal, transverse, or oblique arrangement.
13. A vehicle characterized by comprising the vehicle headlamp as claimed in claim 12.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911175135.0A CN111735027A (en) | 2019-11-26 | 2019-11-26 | Car light module, vehicle headlamp and vehicle |
| PCT/CN2020/115659 WO2021103755A1 (en) | 2019-11-26 | 2020-09-16 | Vehicle lamp module, vehicle headlamp, and vehicle |
| JP2022525408A JP7404528B2 (en) | 2019-11-26 | 2020-09-16 | Vehicle lamp module, vehicle headlamp and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911175135.0A CN111735027A (en) | 2019-11-26 | 2019-11-26 | Car light module, vehicle headlamp and vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111735027A true CN111735027A (en) | 2020-10-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911175135.0A Pending CN111735027A (en) | 2019-11-26 | 2019-11-26 | Car light module, vehicle headlamp and vehicle |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP7404528B2 (en) |
| CN (1) | CN111735027A (en) |
| WO (1) | WO2021103755A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114754323A (en) * | 2022-04-01 | 2022-07-15 | 东风汽车集团股份有限公司 | ADB light-emitting device based on automobile illumination field of vision expands |
| TWI776629B (en) * | 2021-08-06 | 2022-09-01 | 誠益光電科技股份有限公司 | Vehicle lamp device |
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| US6688756B1 (en) * | 2000-03-31 | 2004-02-10 | Seiko Epson Corporation | Light source device, and illuminating optical system and projector including the same |
| JP2007099222A (en) | 2005-10-07 | 2007-04-19 | Koito Mfg Co Ltd | Vehicular lighting system |
| JP4514052B2 (en) | 2005-10-14 | 2010-07-28 | スタンレー電気株式会社 | Vehicle lighting |
| TWI414726B (en) * | 2010-08-31 | 2013-11-11 | Kuo Chin Huang | Light collecting lens, module and lamp with multiple curvature surfaces |
| JP6151904B2 (en) | 2012-09-27 | 2017-06-21 | 株式会社小糸製作所 | Vehicle lighting |
| CN204100136U (en) * | 2014-09-18 | 2015-01-14 | 宁波高新区赛尔富电子有限公司 | A kind of lens, LED module and illuminator |
| JP6693052B2 (en) * | 2015-06-02 | 2020-05-13 | 市光工業株式会社 | Vehicle lighting |
| CN107339653A (en) * | 2016-06-17 | 2017-11-10 | 佛山市中山大学研究院 | A kind of lens group for high beam illumination |
| JP6949244B2 (en) | 2018-04-25 | 2021-10-13 | 華域視覚科技（上海）有限公司Ｈａｓｃｏ Ｖｉｓｉｏｎ Ｔｅｃｈｎｏｌｏｇｙ Ｃｏ．， Ｌｔｄ． | Matrix lighting device for vehicles |
| CN208253440U (en) * | 2018-06-01 | 2018-12-18 | 广州广日电气设备有限公司 | LED low-beam light and dipped headlight mould group |
| CN110332497B (en) * | 2019-08-07 | 2024-02-20 | 厦门瑞律光电有限公司 | Lighting assembly |
| CN211316063U (en) * | 2019-11-26 | 2020-08-21 | 华域视觉科技(上海)有限公司 | Car light module, vehicle headlamp and vehicle |
-
2019
- 2019-11-26 CN CN201911175135.0A patent/CN111735027A/en active Pending
-
2020
- 2020-09-16 JP JP2022525408A patent/JP7404528B2/en active Active
- 2020-09-16 WO PCT/CN2020/115659 patent/WO2021103755A1/en active Application Filing
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI776629B (en) * | 2021-08-06 | 2022-09-01 | 誠益光電科技股份有限公司 | Vehicle lamp device |
| CN114754323A (en) * | 2022-04-01 | 2022-07-15 | 东风汽车集团股份有限公司 | ADB light-emitting device based on automobile illumination field of vision expands |
| CN114754323B (en) * | 2022-04-01 | 2023-12-26 | 东风汽车集团股份有限公司 | ADB light-emitting device based on automobile illumination visual field expansion |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2023501233A (en) | 2023-01-18 |
| WO2021103755A1 (en) | 2021-06-03 |
| JP7404528B2 (en) | 2023-12-25 |
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