CN107664295B - Collimating lens and vehicle optical module thereof - Google Patents
Collimating lens and vehicle optical module thereof Download PDFInfo
- Publication number
- CN107664295B CN107664295B CN201710826614.9A CN201710826614A CN107664295B CN 107664295 B CN107664295 B CN 107664295B CN 201710826614 A CN201710826614 A CN 201710826614A CN 107664295 B CN107664295 B CN 107664295B
- Authority
- CN
- China
- Prior art keywords
- light
- collimating lens
- condensing
- optical module
- module
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 230000003287 optical effect Effects 0.000 title claims abstract description 47
- 239000011159 matrix material Substances 0.000 claims abstract description 18
- 238000000034 method Methods 0.000 claims abstract description 5
- 239000000463 material Substances 0.000 claims description 15
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 11
- 239000000741 silica gel Substances 0.000 description 11
- 229910002027 silica gel Inorganic materials 0.000 description 11
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 7
- 239000004926 polymethyl methacrylate Substances 0.000 description 7
- 230000000694 effects Effects 0.000 description 5
- 238000009434 installation Methods 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000003384 imaging method Methods 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 230000000295 complement effect Effects 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 108010001267 Protein Subunits Proteins 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000012938 design process Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
- F21S41/10—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
- F21S41/14—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source characterised by the type of light source
- F21S41/141—Light emitting diodes [LED]
- F21S41/143—Light emitting diodes [LED] the main emission direction of the LED being parallel to the optical axis of the illuminating device
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V5/00—Refractors for light sources
- F21V5/007—Array of lenses or refractors for a cluster of light sources, e.g. for arrangement of multiple light sources in one plane
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
- F21S41/10—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
- F21S41/14—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source characterised by the type of light source
- F21S41/141—Light emitting diodes [LED]
- F21S41/151—Light emitting diodes [LED] arranged in one or more lines
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V5/00—Refractors for light sources
- F21V5/04—Refractors for light sources of lens shape
-
- 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]
Abstract
The utility model provides a collimating lens and for car optical module, collimating lens is the taper, the preceding terminal surface is the light-emitting surface, the rear end is the spotlight end, the spotlight end is whole backward protrusion, center department is sunken, sunken bottom surface backward protrusion, spotlight end radially outermost surface is the lateral wall, spotlight end has a focus, be located the rear of sunken bottom surface, be close to the region of spotlight end's rear end edge, the light-emitting surface is the lateral wall with spotlight end surface outside the surface, the lateral wall is continuous plane or curved surface in the fore-and-aft direction. The vehicle optical module comprises one or more groups of collimating lens units, the collimating lens units comprise LED light sources and collimating lenses which are in one-to-one correspondence, the light sources are arranged at the focus of the collimating lenses, the collimating lens units are arranged in one or more rows at intervals in a matrix mode, and side walls of the light sources at the intervals are connected with ribs. When in use, the two modules are matched to form a continuous light type. The invention has high light utilization efficiency and simple mold process, and is suitable for matrix type headlamps.
Description
Technical Field
The invention relates to a collimating lens and an optical module for a vehicle, which are provided with higher optical efficiency and can be used for an optical system of a matrix headlight.
Background
In recent years, the technology of car lamps is changed day by day, and matrix type headlamps are a gust of wind in the next few years. The matrix type headlight is formed by combining and arranging a plurality of light sources, and various driving states are collected through the radar and the sensor in the vehicle, and then the intelligent system is used for controlling the sub-light sources, so that the light type can automatically adapt to the driving environment. Because of the technical difficulty of matrix headlights, only a few high-end vehicle-type applications, such as Benz, audi, were initially available. Along with the popularization of marketization, more and more medium-grade vehicle types begin to be equipped with matrix headlamps. The matrix headlight light module is composed of sub-units, and the collimating lens unit with simple manufacturing process is more helpful to the development of the technology.
The matrix headlight of the Benz class E car has silica gel as the core part and has one primary optical element with needle collimator. The principle of the collimator is that the collimation effect is achieved by total reflection of the side wall of the part. The disadvantage of this solution is that the side walls cannot be connected in order to meet the total reflection condition, so that the spacing between adjacent collimators is small, within 0.1 mm. The part mold has serious sharp steel, high mold requirement, high process difficulty, difficult processing, and high part cost, and can be manufactured and processed only by a few foreign companies at present. The silica gel material is softer, and is different from the rigid material in installation and positioning, and auxiliary parts are needed for fixing. This also brings the cost increases.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention provides a collimating lens and an optical module for a vehicle, the primary optical member composed of the collimating lens unit has simple structure and die, is not limited to silica gel materials, can be injection molded by common PC or PMMA, and has lower cost. The invention provides a new optical system solution for matrix type headlights.
The main technical scheme of the invention is as follows:
a collimating lens, characterized in that:
the radial section of the light emergent surface from the light condensing end at the rear end to the light emergent surface at the front end is tapered,
the light condensing end is of a structure with a whole protruding backwards, a concave at the center and a concave bottom surface protruding backwards,
the surface of the light-gathering end is a rotating curved surface along the optical axis, the surface of the radial outermost layer of the light-gathering end is a total reflection surface,
the light condensing end is provided with a focus, and the focus is positioned at the rear of the bottom surface of the recess and near the rear end edge of the light condensing end;
the side wall of the surface outside the light emitting surface and the light collecting end surface is a continuous surface or is formed by continuously splicing a plurality of continuous surfaces, the continuous surfaces are curved surfaces and/or planes, and the side wall is continuous in the front-rear direction.
The side wall is not the pointolite at the LED, and some light refraction will be to the side wall, and this small part light is all reflected to the exit face to the effect that the side wall needs to have total reflection at this moment, is favorable to improving light efficiency.
The invention relates to a collimating lens, which is characterized in that the surface of a condensing end is sequentially provided with an outer-layer side condensing surface, an inner-layer side condensing surface and a front-end condensing surface from outside to inside in the radial direction, wherein the radially outermost surface of the condensing end is the outer-layer side condensing surface, the side wall of a concave is the inner-layer side condensing surface, and the bottom surface of the concave is the front-end condensing surface;
the inner layer side collecting surface and the outer layer side collecting surface are connected at the edge of the rear end, the front end edge of the inner layer side collecting surface is connected with the edge of the front end collecting surface and is used for collecting light rays in parallel or in an angle, and therefore the angle of light ray refraction can be changed through curvature adjustment of the inner layer collecting surface and the outer layer collecting surface.
The light-gathering end is provided with a focus, the focus is positioned at the rear of the bottom surface of the recess and near the rear end edge of the light-gathering end, the surfaces outside the light-emitting surface and the light-gathering end surface are side walls, and the side walls are total reflection surfaces.
The collimating lens according to the present invention is characterized in that,
the radially outermost surface of the light-gathering end is a paraboloid; the light-emitting surface is a plane or a curved surface, and the shape is polygonal, circular or elliptical.
The shape image of the light-emitting surface is projected on a screen 25m in front of the lamp by the lens to form an inverted image, and the light distribution type of the car lamp is not square rectangle, but is a specific shape, so that the shape of the single light-emitting surface is changed as a small pixel with a composition according to the requirement; when the light-emitting surface is circular, the light spots are circular, and when the light-emitting surface is square, the light spots of the screen are square.
The side wall is a continuous surface or a surface formed by splicing a plurality of continuous surfaces, the continuous surfaces are curved surfaces and/or flat surfaces, and the side wall is continuous in the front-rear direction.
The collimating lens according to the present invention is characterized in that,
the light-emitting surface is square, the side wall is composed of four planes, and each plane is parallel to the rotation center line or forms an included angle.
The side wall has the effect of partial total reflection, so that more light can be converged on the light-emitting surface, and the light efficiency can be improved; the light emitting end is preferably small in the left-right direction, the light entering end is large, so that the formed light spots of the independent collimating lenses in the left-right direction are narrower, more collimators are conveniently arranged in the left-right direction within a specified angle range, and the pixel precision is improved. In the vertical direction, the angle between the side wall and the central axis is not particularly limited, and is mainly determined by the height of the light-emitting surface. The light emitting surface has a larger width in the vertical direction, and the formed light pattern is longer in the vertical direction and shorter in the opposite direction.
The side wall is composed of four planes, and the meaning of each plane being parallel to or forming an included angle with the rotation center line is that: the size of the light-emitting surface is generally required to be smaller, so that imaging on a 25m screen through a lens is smaller, and a Matrix module with higher design precision is facilitated; the light-entering end is desired to be larger, because the LED chip has a certain size, the light-gathering end is larger, and more light is received, so that the light utilization rate is high.
The collimating lens has the advantages of large light incident end and small light emergent end due to the design requirement. In addition, the side wall is responsible for connecting the light-in end and the light-out end, so that the appearance effect of a certain angle with the optical axis, namely the rotation center line is formed. Of course, this setting of the angle value is the result of the common influence of the light-in end and the light-out end. There may also be cases where the sidewalls are parallel, or where the light exit end is larger than the light entrance end.
According to the present invention the invention relates to a method for preparing a composite material, the collimating lens is made of PC, PMMA or transparent silica gel.
The technical scheme of the optical module for the vehicle is as follows:
an optical module for a vehicle, characterized in that:
the LED light source is arranged at the focus of the collimating lens, and the light-emitting surface of the LED light source faces the collimating lens;
when the collimating lens units are in a plurality of groups, the collimating lens units in each group are arranged in a matrix array type at intervals, and the light-emitting surfaces of two adjacent collimating lenses are separated from each other by a distance of one light-emitting surface width without connection;
the light-in side interval is connected by materials, so that the collimating lenses at the scattered intervals are connected into a whole;
the collimating lens units of the matrix form a primary optical element, and the light emergent surface is positioned on the focal plane of the secondary lens.
The invention relates to an optical module for a vehicle, which is characterized in that,
the collimating lens units are the same or different, and their light-entering focuses are on the same plane.
The vehicle optical module according to the present invention is characterized in that:
the collimating lens units correspond to different LED light sources, and the focal positions can float back and forth on the same plane.
In the design process, the same LED light source is generally used, the same LED light source is placed on the same circuit board, and the center of the light source is a plane. But the pixel brightness requirements for the general edges are not so high and the cost would be more expensive if the same model as the middle LED were used. In view of cost, if the edge LEDs are of cheaper types, the LEDs may have different sizes, and the center of the light source may not be in the same plane as the center of the middle LED light source, and then, the front and back positions of the collimator may be adjusted, so that the focus of the edge collimator is at the center of the new LED light source.
The vehicle optical module according to the present invention is characterized in that:
the light emergent surface of the collimating lens unit is arranged on the focal plane of the imaging secondary lens, and the imaging secondary lens is a single convex lens or a concave-convex combined lens.
The front profile projection of the secondary lens may be circular, or rectangular or elliptical or polygonal.
According to the optical module for a vehicle of the present invention,
when the collimating lens units are in a plurality of groups, the collimating lens units are arranged at intervals in an array mode, and the light-emitting surfaces of two adjacent collimating lenses are separated by a distance of the width of the light-emitting surface.
This is because the LED particles have a certain size, the size of the light-gathering end cannot be too small, otherwise the amount of received LED light is not large; in the unit angle range, if many pixels are to be arranged, the single light-emitting surface must be made narrow, which is smaller than the width of the light-condensing end.
The side walls, especially the side walls close to the light-emitting surface, have a small part of light totally reflected on the side walls near the light-emitting surface, and cannot be connected with each other, otherwise, the light can be accumulated with each other, and the size and the brightness of a single pixel light type are affected; therefore, the light emitting surfaces of each collimating lens must be spaced apart, and the resulting light patterns are also spaced apart.
To make the light pattern continuous, it is necessary to illuminate the spaced dark areas with another module to form a complete continuous light pattern. At this time, for convenience of design and cost saving, the other module is preferably identical to the one module, and therefore, the width of the interval is set to the width of one light emitting surface. Here, a sub-first module and a sub-second module. The two sub-modules are integrated together to form a unitary module. The light spots of the sub second modules are just filled at the intervals of the first modules by adjusting the light type positions, and the light spots of the second modules are just filled at the intervals of the first modules. The two module faculae are matched to form a continuous and uniform complete light type.
The light entering side interval is connected with materials, so that all the collimating lenses are connected into a whole to form a whole, namely the vehicle optical module. The module comprises a light source, the primary optical element, a secondary lens and other auxiliary parts.
The invention relates to an optical module for a vehicle, which is characterized in that,
the collimating lens units serving as the primary optical elements can be arranged in a row or in a plurality of rows, and in principle, the light emitting surfaces are arranged at intervals, and the two modules mutually complement the light pattern to achieve the complete effect.
The first module and the second module can be horizontally arranged, can be vertically arranged, and can be adjusted in front and back positions. Can meet different modeling and design requirements.
The first module and the second module matched with each other are recommended to be designed identically, so that the cost of parts can be saved. It is also possible to design separately, taking into account special circumstances.
The beneficial effects of the invention are as follows:
the light-emitting surfaces of the single primary optical element (collimating lens unit) are spaced, so that smaller light-emitting surfaces can be provided, smaller pixels are reflected on a light distribution screen, and a Matrix headlight module with high pixels and high precision can be manufactured. The side walls of the light condensing ends can be connected, so that the scattered collimators form a unified whole, and the strength and the rigidity of the primary optical element are improved; the interval between two adjacent collimator units is large, sharp steel cannot be formed on the die, the die processing difficulty is low, and the manufacturing process difficulty is low. The primary optical element can be made of silica gel material, and can be injection molded by PC or PMMA, so that the cost of a single element is reduced. When PC or PMMA materials are selected, the rigidity of the material is better than that of a silica gel material, and the conventional installation and positioning mode can be adopted, so that auxiliary installation parts of the silica gel piece are omitted, and the cost is further reduced.
Drawings
FIG. 1 is a schematic perspective view of an embodiment of the present invention;
FIGS. 2A and B are schematic views of the light paths of the present invention, wherein the light of FIG. 2A is emitted in parallel, and the light of FIG. 2B is emitted at an angle a;
FIG. 3 is a schematic perspective view of a primary optic (collimating lens unit) in one embodiment of the invention;
FIG. 4 is a schematic diagram of an optical module for a vehicle according to the present invention;
FIG. 5 is a schematic view of the light pattern of the first module;
FIG. 6 is a schematic diagram of the light pattern of the second module;
fig. 7 is a schematic view of the light pattern of the whole module.
In the figure, A is a collimating lens, 1 is a condensing end at the rear end of the collimating lens, 1-1a is the radially outermost surface of the condensing end, 1-1b is an inner side condensing surface, 1-2 is a front condensing surface, 2 is a side wall of the collimating lens, 3 is a light emitting surface at the front end of the collimating lens, 4 is a focus, 4-1 is an LED light source, 5 is an optical axis, 6 is an interval of the light emitting surface, 7 is a group of collimating lens units formed by the collimating lenses, 8 is a secondary lens, and 9 is a circuit board.
Detailed Description
As shown in fig. 1, the invention discloses a collimating lens, which is cone-shaped, the front end surface of the collimating lens is a light-emitting surface 3, the rear end of the collimating lens is a light-condensing end 1, and light propagates from back to front. The light-gathering end is of a special-shaped structure with a convex back surface, a concave center and a concave bottom surface, the surface of the light-gathering end is a rotating curved surface, the rotating center line of the light-gathering end passes through the light-emitting surface forwards, and the radially outermost surface 1-1a of the light-gathering end is a total reflection surface. The condensing end has a focal point located on the optical axis 5 behind the bottom surface of the recess near the rear edge of the condensing end. The light emitted from the focus can be directly emitted out of the light-emitting surface in parallel through the light-gathering end, and can also be emitted out of the light-emitting surface in a certain included angle after crossing once. The focal point 4 is preferably a light source placement point. The surface outside the light emitting surface and the light collecting end surface is a side wall 2, and the side wall can be a continuous surface or a surface formed by splicing a plurality of continuous surfaces, and the continuous surfaces can be curved surfaces and/or flat surfaces. The side walls are preferably continuous in the front-rear direction. The side wall is parallel to the optical axis direction 5, or may form an included angle with the optical axis direction.
The surface of the light-gathering end is sequentially provided with an outer-layer side light-gathering surface, an inner-layer side light-gathering surface 1-1b and a front-end light-gathering surface 1-2 from outside to inside in the radial direction. The radially outermost surface of the light-gathering end is the outer-layer side light-gathering surface 1-1a. The side wall of the recess forms the inner layer side collecting surface, and the inner layer side collecting surface is an irregular curved surface and is used for refracting light rays onto the outer layer side collecting surface. The bottom surface of the recess forms the front-end collecting surface and acts as a convex lens, and light rays of the light source are collected on the light-emitting surface in parallel or in a crossed manner through the front-end collecting surface. The inner layer side collecting surface and the outer layer side collecting surface are connected at the rear end edge, the front end edge of the inner layer side collecting surface is connected with the edge of the front end collecting surface, and the focal point is flush with the rear end edge of the collecting end in the axial direction.
The radially outermost surface of the condensing end is used for reflecting all light entering from the side condensing surface of the inner layer. The curvature of the collecting surface can be designed independently to emit light rays in parallel or at a certain angle. The radially outermost surface of the light-gathering end is preferably parabolic and bowl-shaped. The light-emitting surface can be a plane or a curved surface. The light emitting surface is preferably perpendicular to the rotation center line. The light emitting surface may be polygonal, circular or elliptical, and accordingly, the surfaces of the side walls are different from each other, but the light path should not be affected before the side walls are connected to the surface of the light collecting end.
In the embodiment shown in the drawings, the light emitting surface is square, and corresponds to the shape of a light spot on a screen, and correspondingly, the side wall consists of four planes. The projection of the light source onto the screen through said collimator lens is also square by means of the secondary lens. If the light-emitting surface is of the other shape, the projection of the light spot on the screen will also change. The light-emitting surface can be specifically designed according to the requirement. The side wall is parallel to the optical axis or forms an included angle, the side wall of the collimating lens shown in the drawing is slightly inclined, namely forms an included angle, and the whole collimating lens is in a cone shape with thin front and thick rear. The inclination may be determined according to the refractive index of the material, the length of the lens, the light efficiency, the arrangement of the units, the mold process, etc.
The collimating lens is preferably made of PC, PMMA or transparent silica gel;
as shown in fig. 4, the invention also discloses a schematic diagram of an optical module for a vehicle, which comprises a plurality of groups of collimating lens units, wherein each collimating lens unit comprises an LED light source 4 and a collimating lens which are in one-to-one correspondence, the LED light sources are arranged at the focus of the collimating lens and on the same circuit board 9, the light emitting surfaces of the LED light sources face the collimating lens, and the light condensing ends can completely wrap the light emitted by the LED light sources, so that the light utilization efficiency is obviously improved. Each group of collimating lens units are arranged in a single row array, and the light-emitting surfaces of two adjacent collimating lenses are separated by a distance of one light-emitting surface. The individual collimating lens units are connected by ribs on the side close to the light source to form an integral part. The light emitting surfaces are not connected, and light spots projected on the screen when the light source is lightened are also spaced because the light emitting surfaces are spaced. As shown in fig. 6.
We need a continuous uniform spot and therefore consider the use of two modules in combination to achieve the desired spot. Specifically, the module 1 projects the light pattern shown in fig. 5, and the other module 2 projects the light pattern shown in fig. 6, and the light spot of fig. 6 is just opposite to that of fig. 5, so that the light spots are complementary to each other, and the continuous light pattern of fig. 7 is formed together.
According to the invention, the light-emitting surfaces of the single primary optical element (the collimating lens unit) are spaced, so that a smaller light-emitting surface can be provided, smaller pixels can be reflected on the light distribution screen, and a Matrix headlight module with high pixels and high precision can be manufactured. The side walls of the light condensing ends can be connected, so that the scattered collimators form a unified whole, and the strength and the rigidity of the primary optical element are improved; the interval between two adjacent collimator units is large, sharp steel cannot be formed on the die, the die processing difficulty is low, and the manufacturing process difficulty is low. The primary optical element can be made of silica gel material, and can be injection molded by PC or PMMA, so that the cost of a single element is reduced. When PC or PMMA materials are selected, the rigidity of the material is better than that of a silica gel material, and the conventional installation and positioning mode can be adopted, so that auxiliary installation parts of the silica gel piece are omitted, and the cost is further reduced.
Claims (8)
1. The vehicle optical module comprises one or more groups of collimating lens units, wherein each collimating lens unit comprises an LED light source and a collimating lens which are in one-to-one correspondence, the LED light sources are arranged at the focus of the collimating lens, and the light-emitting surfaces of the LED light sources face the collimating lens;
the collimating lens has the following structure:
the radial section of the light emergent surface from the light condensing end at the rear end to the light emergent surface at the front end is tapered,
the light condensing end is of a structure with a whole protruding backwards, a concave at the center and a concave bottom surface protruding backwards,
the surface of the light-gathering end is a rotating curved surface along the optical axis, the surface of the radial outermost layer of the light-gathering end is a total reflection surface,
the light condensing end is provided with a focus, and the focus is positioned at the rear of the bottom surface of the recess and near the rear end edge of the light condensing end;
the side wall of the surface outside the light emitting surface and the light collecting end surface is a continuous surface or is formed by continuously splicing a plurality of continuous surfaces, the continuous surfaces are curved surfaces and/or planes, and the side wall is continuous in the front-rear direction; the method is characterized in that:
when the collimating lens units are in a plurality of groups, the collimating lens units in each group are arranged in a matrix array type at intervals, and the light-emitting surfaces of two adjacent collimating lenses are separated from each other by a distance of one light-emitting surface width without connection;
when the collimating lens unit is arranged at intervals in a row of matrix, the collimating lens unit comprises:
the LED light source and the collimating lens are in one-to-one correspondence, the first sub-module and the second sub-module are identical, the two sub-modules are integrated together, the light spots of the second sub-module are just filled at the intervals of the first sub-module by adjusting the light type position, the light spots of the second sub-module are just filled at the intervals of the first sub-module,
the two sub-modules are matched with each other to form a continuous and uniform complete light pattern,
the light-in side interval is connected by materials, so that the collimating lenses at the scattered intervals are connected into a whole;
the collimating lens units of the matrix form a primary optical element, and the light emergent surface is positioned on the focal plane of the secondary lens.
2. The vehicle optical module according to claim 1, wherein:
the surface of the condensing end of the collimating lens is sequentially provided with an outer-layer side condensing surface, an inner-layer side condensing surface and a front-end condensing surface from outside to inside in the radial direction, the radially outermost surface of the condensing end is the outer-layer side condensing surface, the concave side wall forms the inner-layer side condensing surface, and the concave bottom surface forms the front-end condensing surface;
the inner layer side collecting surface and the outer layer side collecting surface are connected at the edge of the rear end, the front end edge of the inner layer side collecting surface is connected with the edge of the front end collecting surface and is used for collecting light rays in parallel or in an angle, and therefore the angle of light ray refraction can be changed through curvature adjustment of the inner layer collecting surface and the outer layer collecting surface.
3. The vehicle optical module according to claim 1, wherein: the radially outermost surface of the condensing end of the collimating lens is a paraboloid; the light-emitting surface is a plane or a curved surface, and the shape is polygonal, circular or elliptical.
4. The vehicle optical module according to claim 1, wherein: the light-emitting surface of the collimating lens is square, the side wall consists of four planes, and each plane is parallel to the rotation center line or forms an included angle.
5. The vehicle optical module of claim 1, wherein,
the collimating lens units are the same or different, and their light-entering focuses are on the same plane.
6. The optical module for a vehicle according to claim 5, wherein the collimating lens unit corresponds to different LED light sources, and the focal position can be floated back and forth on the same plane.
7. The vehicle optical module of claim 1, wherein,
the collimating lens units may be arranged at intervals in one row or may be arranged at intervals in a plurality of rows.
8. The vehicle optical module of claim 1, wherein the two modules are cooperatively arranged in either an up-down or side-to-side arrangement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710826614.9A CN107664295B (en) | 2017-09-14 | 2017-09-14 | Collimating lens and vehicle optical module thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710826614.9A CN107664295B (en) | 2017-09-14 | 2017-09-14 | Collimating lens and vehicle optical module thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107664295A CN107664295A (en) | 2018-02-06 |
| CN107664295B true CN107664295B (en) | 2024-02-02 |
Family
ID=61097041
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710826614.9A Active CN107664295B (en) | 2017-09-14 | 2017-09-14 | Collimating lens and vehicle optical module thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107664295B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108397746A (en) * | 2018-04-13 | 2018-08-14 | 华域视觉科技(上海)有限公司 | Far and near photosystem based on light guide and car light |
| CN109253417B (en) * | 2018-10-16 | 2023-12-29 | 苏州欧普照明有限公司 | Optical module and light source module |
| CN109973927B (en) * | 2018-12-28 | 2024-03-22 | 华域视觉科技(上海)有限公司 | Matrix type high beam module and condenser thereof |
| CN209688726U (en) * | 2019-05-20 | 2019-11-26 | 华域视觉科技(上海)有限公司 | A kind of matrix form car light Optical devices, car light and vehicle |
| CN111412426A (en) | 2019-06-05 | 2020-07-14 | 华域视觉科技(上海)有限公司 | Car light optical element, car light module, vehicle headlamp and vehicle |
| CN110440217A (en) * | 2019-09-11 | 2019-11-12 | 华域视觉科技(上海)有限公司 | A kind of car light mould group, car light and vehicle |
| CN112781002A (en) * | 2020-07-17 | 2021-05-11 | 华域视觉科技(上海)有限公司 | Vehicle high beam module, vehicle headlamp and vehicle |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103292247A (en) * | 2012-02-29 | 2013-09-11 | 惠州元晖光电股份有限公司 | Secondary optical lens of polyhedron |
| CN206055274U (en) * | 2016-09-07 | 2017-03-29 | 广州达森灯光股份有限公司 | A kind of LED mixed lights beam condensing unit |
| CN107023796A (en) * | 2017-05-26 | 2017-08-08 | 上海小糸车灯有限公司 | Collimation lens and automobile optics module |
| CN207527498U (en) * | 2017-09-14 | 2018-06-22 | 上海小糸车灯有限公司 | A kind of collimation lens and its automobile-used optics module |
-
2017
- 2017-09-14 CN CN201710826614.9A patent/CN107664295B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103292247A (en) * | 2012-02-29 | 2013-09-11 | 惠州元晖光电股份有限公司 | Secondary optical lens of polyhedron |
| CN206055274U (en) * | 2016-09-07 | 2017-03-29 | 广州达森灯光股份有限公司 | A kind of LED mixed lights beam condensing unit |
| CN107023796A (en) * | 2017-05-26 | 2017-08-08 | 上海小糸车灯有限公司 | Collimation lens and automobile optics module |
| CN207527498U (en) * | 2017-09-14 | 2018-06-22 | 上海小糸车灯有限公司 | A kind of collimation lens and its automobile-used optics module |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107664295A (en) | 2018-02-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107664295B (en) | Collimating lens and vehicle optical module thereof | |
| CN210891432U (en) | Car light optical element, car light module, vehicle headlamp and vehicle | |
| CN108534078B (en) | LED array far and near light dual-function module system | |
| CN112154288B (en) | Lighting module for a motor vehicle headlight | |
| JP7244654B2 (en) | vehicle lamp lighting module, vehicle lamp and vehicle | |
| US11378244B2 (en) | Headlight apparatus | |
| CN107023796B (en) | Collimating lens and optical module for automobile | |
| JP2004152764A (en) | Display lamp equipped with optical device for collection and distribution of luminous flux annular reflector | |
| CN106439682A (en) | Optical collector for automotive dipped headlight module | |
| CN111505892A (en) | Projection system based on micro-lens array | |
| JP2011198473A (en) | Condensing optical element and device using the same | |
| CN108019713B (en) | Optical module for projecting a cut-off beam comprising a horizontal focusing device | |
| CN207527498U (en) | A kind of collimation lens and its automobile-used optics module | |
| US10731817B2 (en) | Luminous module comprising a matrix array of light sources and a bifocal optical system | |
| WO2022198721A1 (en) | Vehicle lamp optical assembly, illumination optical device, and vehicle | |
| US10253940B1 (en) | Vehicle light assembly | |
| CN112752925B (en) | Car light optical element, car light module, car head lamp and car | |
| WO2021103755A1 (en) | Vehicle lamp module, vehicle headlamp, and vehicle | |
| US20210123574A1 (en) | Light distribution element, light source assembly and lighting | |
| JP2017228452A (en) | Lens body and vehicular lighting fixture | |
| CN112135997B (en) | Matrix car light optical device, car light and vehicle | |
| CN210219619U (en) | Short-distance beam III area lighting module, light screen, lighting device and vehicle | |
| CN115079499A (en) | Dynamic projection module applied to car lamp and design method thereof | |
| CN111290195A (en) | Double-color temperature flash lamp lens system with light distribution alignment function | |
| CN211822201U (en) | Optical device for vehicle headlamp, headlamp and vehicle |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: 201821 No. 767, Yecheng Road, Shanghai, Jiading District Applicant after: HUAYU VISION TECHNOLOGY (SHANGHAI) Co.,Ltd. Address before: 201821 No. 767, Yecheng Road, Shanghai, Jiading District Applicant before: SHANGHAI KOITO AUTOMOTIVE LAMP Co.,Ltd. |
|
| CB02 | Change of applicant information | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |