TWM578656U - Vehicle LED linear lighting module - Google Patents

Abstract

This disclosure is related to a vehicle LED linear lighting module which comprises at least one printed circuit board, at least one light bar, an optical colloid and a light conductor. The light bar is disposed on the printed circuit board and is composed of a plurality of light emitting diodes in a linear lighting and an equally spaced arrangement. The optical colloid has a first optical surface, a second optical surface and a third optical surface, furthermore, the optical colloid covers the plurality of light emitting diodes in a full coverage. This disclosure utilizes the different optical surfaces of the optical colloid and the arrangement both of the light incident surface and the light exit surface of the optical conductor, so that the light strip can greatly improve the light effect. Meanwhile, this disclosure has the effect of high brightness and high uniformity, and it can be used in the vehicle headlights to meet with the high light intensity requirements of the lamp light distribution regulations. On the other hand, this disclosure is with an excellent visual effects, further with the flexibility property which applied to the free-curve appearance of the vehicle headlights, so that the car factory can have more diverse creative thinking in the design of the lamp shape.

Description

LED car linear lighting module

The present invention discloses an LED vehicle-mounted linear light-emitting module, in particular, a light-emitting module with flexibility and linear illumination, which can be quickly applied to a free curve.

In the existing market, as the development of light-emitting diodes (LEDs) becomes more and more mature, LEDs have more advantages than traditional halogen bulbs, such as small size, high brightness, low power and long life, etc. More and more extensive. At present, in the application of daytime running lights, many car manufacturers use light-emitting diodes as the light source of lamps, from the earliest point light source to the current surface light source, 3D stereo light source and linear light source. However, the light-emitting diode is a point light source and has directivity. Direct application to the daytime running light will make the lamp body thicker, and there will be obvious granularity in the visual direction. This is because the light cannot achieve a uniform effect, that is, the luminance is not easily reached. The uniform effect, resulting in poor perception of the visual body, will make the visual quality of other vehicle drivers and pedestrians worse.

In recent years, common light guide strips are used in daytime running lights for vehicles. Since the light from the light source enters the light from the side of the light guide strip, the visual effect is limited by the length and bending of the light guide strip, so this creation will be used. The LED module presents a linear light source and improves the visual uniformity that cannot be exhibited by traditional design techniques, and increases the identifiability of other vehicles.

In the prior art, for example, the lamp device disclosed in EP 2161494 B1 "LIGHTING DEVICE FOR A MOTOR VEHICLE" has the disadvantage that in practical application, it can be found that the LED placement position on the LED strip has deviated from the light guide body. The center position, and the center light exit direction of the LED has deviated from the center axis of the light guide body, resulting in low light extraction efficiency of the LED, especially the central axis of the light guide body has a low light intensity, which cannot be To meet the requirements of daytime running lights regulations, or to increase the number of LEDs or use higher power LEDs to achieve the lights regulations.

The light bar device disclosed in US 9976710 B2 "FLEXIBLE STRIP LIGHTING APPARATUS AND METHODS" has the disadvantage that the use of soft materials to add phosphor powder and pigment material makes the overall light intensity lower and requires the use of multiple LEDs or It is to increase the power value to meet the relevant requirements of the vehicle lights regulations, resulting in increased costs.

CN 205979313U "A type of LED flexible lamp strip" has the following disadvantages: 1. The glazed surface of the enamel is a flat design, and the light emitted by the LED passes through the illuminating surface light, which may cause convergence, and it is difficult to increase the central light intensity through the day. Light regulations. 2. If you want to meet the regulatory requirements for daytime running lights for vehicles, you need to increase the number of LEDs significantly, resulting in a significant increase in costs.

CN 202158410 U "The LED flexible light strip of silicone encapsulation" has the disadvantage that the glazed glazing surface is a flat design, which causes the light emitted by the LED to converge through the illuminating surface light, and needs to increase the number of LEDs or increase the number of LEDs. The wattage can meet the requirements of daytime running lights regulations.

CN 107895755 A "A high-intensity LED line light source" has the disadvantages of uniformly diffusing light by using a reflective film method, resulting in a weak central light intensity, and it is not possible to use a car day with high requirements for center (HV) light intensity. In the application of the running light, it is more suitable for the interior backlight module with high uniformity.

TW 1369463 B1 "Ultra-thin line light source module" has the disadvantages that the patented package colloid can converge the light of the LED forward light to the center to increase the light intensity, but the LED has a limited convergence of light at a large angle. The strength of the center of the structure is about 1.5 times higher than that of the planar structure. However, if the daily light distribution needs are met, it is necessary to increase the number of LEDs or increase the power of the module, but it will cause cost increase and poor heat dissipation. .

TW M474657U "Light guide structure of the lamp" has the following disadvantages: 1. The light bar emits light toward the left and right sides, and the central light intensity contribution is low, which is difficult to comply with the daylight lamp regulations. 2. Need to be placed Two LED strips, otherwise the uniform light effect is poor and the brightness is reduced. 3. The light strip is fixed on the back and attached to the back, resulting in poor heat dissipation, unable to use more LEDs or using a higher power current drive.

TW I370216B1 "Light Emitting Diode Light Bar" has the following disadvantages: 1. The middle layer only provides a uniform effect on the color of the light bar, and is more suitable for the backlight module in the car or the uniform atmosphere lamp in the car. 2. The shape of the silicone rubber is a flat design, and there is no effect of collecting light. It is difficult to pass the requirements of the daytime running light regulations.

CN 206504276N "An LED flashlight lens" has the disadvantages of: 1. The optical design is to converge the light to increase the luminous range, but the angle is reduced to provide a width of about 20 degrees around the daylight law. 2. Due to the convergence of the light at a small angle, bright spots appear on the lights, causing visually bright and dark differences.

The present invention discloses an LED in-vehicle linear light-emitting module, which not only solves the problem of uneven brightness of the automobile signal lamp, but also effectively overcomes this problem, and adjusts the LED from the point source to the line source to improve the brightness uniformity of the light-emitting surface. And beautiful. The LED module of the creation is also flexible, and is effectively applied to daytime running lights, direction lights, tail lights, brake lights, reversing lights, rear fog lights and automobile interior lights; and the LED vehicle-mounted linear light-emitting module can be Flexibility can be quickly applied to the free-curve headlights, reducing the size of the module, greatly reducing the size of the lights, increasing space utilization and reducing production costs.

In addition to being able to fully utilize the shape of the free-form lamp, the structure of the creation can effectively utilize the space of the lamp body and reduce the thickness of the module, and finally meet the requirements of the light distribution regulations. In view of the fact that the trend of LED lights in the market is not only for driving safety, but also for visual and entertainment effects, this patent will combine the advantages of the light guide strips to greatly improve the visual uniformity effect, so that the application can be applied to the automotive signal lamps. More aesthetics, such as: translucent glazing, high uniformity visual effects and high light collection efficiency. In addition, the dynamic LED lights function is already a trend, this creation can be combined with the direction of running Functions such as lanterns, breathing lights and running lights increase the diversity of LED lights. It is expected to replace traditional light guide strips in the future and become the mainstream product of linear light sources.

The LED in-vehicle linear light-emitting module of the present invention comprises: at least one printed circuit board; at least one light bar is disposed on the at least one printed circuit board, the light bar is composed of a plurality of light-emitting diodes arranged in a line The plurality of light emitting diodes are electrically connected to the at least one printed circuit board, and the distance between the plurality of light emitting diodes is an equal interval, and the direction of the vertical light emitting of the plurality of light emitting diodes is a first axial direction; an optical colloid, the optical colloid is directly integrally formed on the at least one printed circuit board and completely covers each of the plurality of light emitting diodes, the optical The colloid includes: a first optical surface, which is a top surface of the optical gel; a second optical surface, two sides of the optical gel that extend vertically upward from the at least one printed circuit board; and a third optical surface a top surface between the first optical surface and the second optical surface, parallel to the surface of the at least one printed circuit board; and at least one light conductor disposed above the optical gel, the at least one Light conductor a light-emitting surface of the light-conductor and a light-emitting surface of the light-conductor are disposed, and a light path formed by the light-incident surface of the light-conductor and the light-emitting surface of the light-conductor is parallel to the first axial direction, and a long-axis axial direction of the light-conductor itself It is perpendicular to the first axis.

10‧‧‧Printed circuit board

20‧‧‧Light strips

20a‧‧‧First light strip

20b‧‧‧second light strip

22‧‧‧Lighting diode

30‧‧‧Optical colloid

31‧‧‧First optical surface

31a‧‧‧First optical side A

31b‧‧‧First optical B side

32‧‧‧second optical surface

33‧‧‧ Third optical surface

33a‧‧‧ Third optical side A

33b‧‧‧ Third optical B side

40‧‧‧Light conductor

41‧‧‧Light conductors into the glossy surface

42‧‧‧Lighting surface of light conductor

50‧‧‧shell

1A is a schematic view showing the structure of an LED in-vehicle linear light-emitting module according to an embodiment of the present invention; FIG. 1B is a schematic side view of the LED in-vehicle linear light-emitting module of the present invention; FIG. FIG. 1D is a schematic top plan view of an LED in-vehicle linear light-emitting module according to an embodiment of the present invention; FIG. 1E is a schematic view showing another embodiment of the present invention; FIG. 3 is a schematic structural view of an optical colloid in the present embodiment; FIG. 4A is a schematic view showing an embodiment of the first optical surface in the present embodiment; FIG. 4B is another embodiment of the first optical surface in the creative embodiment. schematic diagram; 4C is a schematic view of another embodiment of the first optical surface in the present embodiment; FIG. 4D is a schematic view of the embodiment of the dual light bar corresponding to FIG. 4C in the present embodiment; FIG. 5A is the second embodiment of the present embodiment. FIG. 5B is a schematic view showing another embodiment of the second optical surface in the present embodiment; FIG. 5C is a schematic view showing another embodiment of the second optical surface in the creative embodiment; FIG. 6A is a schematic diagram of an embodiment of a third optical surface in the present embodiment; FIG. 6B is a schematic view of another embodiment of the third optical surface in the present embodiment; FIG. 6C is a third optical surface in the present embodiment. FIG. 6D is a schematic side view of a third embodiment of the present invention; FIG. 7 is a side view of the second embodiment of the present invention; FIG. A side view of an example; FIG. 9 is a side elevational view of a fourth embodiment of the present invention.

The present invention discloses an LED in-vehicle linear light-emitting module, which is because the daytime light of the light-guide type on the market is longer and the brightness is evenly poor, and the creation provides high brightness and high brightness uniformity. LED line light source, the main feature is that the longitudinal direction is uniform, which makes the line light source have good visual effect and meets the requirements of light distribution regulations. Compared with the general LED light bar, it can improve the light intensity and module integration of the line light source, and meet the regulations of the light distribution regulations. The linear light source of this creation has flexibility and can be applied to the free-form exterior of the car, so that the car designer can have more creative ideas.

The exemplary embodiments are described more fully hereinafter with reference to the accompanying drawings However, the concept of the present invention may be embodied in many different forms and should not be construed as being limited to the illustrative embodiments set forth herein. Rather, these exemplary embodiments are provided so that this disclosure will be thorough and specific, and the scope of the inventive concept will be fully conveyed to those skilled in the art. In the drawings, the size of the light-emitting diode, the printed circuit board, the optical colloid, and the photoconductor and the corresponding positional distances may be schematically illustrated for clarity. For similar English numerals or numbers, elements that are similar or related are always indicated.

It will be understood that, although the terms may be used herein to include the first, second, third, etc., the terms are used to clearly distinguish one element from another, and not the order of the number of the elements. Relationships, such as above or below the terms used herein, vertically or horizontally, etc., are used to clearly distinguish one side and the end of an element from the other side and end of the element, or to distinguish one The relative relationship between the corresponding position of the component and the other component is not used to limit the sequential relationship or relative positional relationship of the character number, and does not necessarily have a numerically continuous relationship; that is, by another From an angle of view, the upper (or lower) of the description element may be referred to as being below (or above) without affecting the nature of the technology; again, the first axis is used herein, for example, a Z-axis term, which is merely an example It is explained that the spatial position described is known, that is, the first axial direction may also be the Y-axis or the X-axis, depending on the angle of the observer. Furthermore, the term "at least one of" may be used herein to describe a technology that is implemented with one or more elements. In addition, in the following description, the term "plurality" is used to describe a plurality of, but the plural is not limited to the implementation of a technique in which two, three or four and four or more numbers are implemented.

Referring to FIG. 1A , FIG. 1B , FIG. 1C and FIG. 1D , the LED in-vehicle linear light-emitting module of the present invention includes at least one printed circuit board 10 , at least one light bar 20 , an optical colloid 30 , and at least one Light conductor 40. The printed circuit board 10 described therein can be a single-layer copper foil PCB, a FR4 PCB, a flexible circuit board (FPCB), or a metal-based circuit board (Metal Core PCB). , referred to as MCPCB), can also be a multi-layer copper foil PCB, in order to increase the thermal conductivity or circuit trace design flexibility or improve electromagnetic protection.

The at least one light bar 20 is disposed on the printed circuit board 10. In actual implementation, it can be set as a single, double or double parallel light bar structure, wherein the two strips of the light bar are actually used. It can be a single color or a different color LED, for example, the first row of lights emits white light, and the second row of lights emits red light. Etc., the designer can make different LED lights 20 emit different colors according to their own needs. Each of the light strips 20 is mainly composed of a plurality of light emitting diodes 22 arranged in a line shape; and in the present embodiment, the light emitting diodes 22 themselves can be implemented as one LED die, that is, The LED die that has not been packaged can be used in the present invention as the packaging material and packaging process for packaging the LED die. On the other hand, the light-emitting diode 22 of the present invention itself can also be an LED light-emitting element that has been packaged. This creation is not limited, and LED dies or LED illuminating elements are used depending on the designer's own needs.

The plurality of LEDs 22 are electrically connected to the printed circuit board 10, that is, the printed circuit board 10 provides power and control signals required for the plurality of LEDs 22 to drive illumination. In addition, the distance between the plurality of light-emitting diodes is an equal interval, and the pitch refers to the distance between the adjacent side and the adjacent side between each two adjacent light-emitting diodes. Is equal spacing. In practical applications, in one embodiment, when the size of each of the plurality of light-emitting diodes is 3.5 mm in length and 2.8 mm in width (that is, commonly referred to as 3528 LED), the spacing is ≦ 3mm, however, the LED size and the spacing are only an embodiment, and the scope of practical use of the present invention is not limited by the LED size and the spacing. In addition, a direction in which each of the plurality of LEDs 22 emits light vertically upward is a first axial direction, for example, a Z-axis as shown in FIG. 1A, that is, the first axial direction is Z axis.

The optical colloid 30 is directly integrally formed on the printed circuit board 10, and covers each of the plurality of LEDs 22 for full coverage, that is, each of the LEDs Each of the faces of the body 22, such as the upper, the front, the back, the left, and the right of an LED, is covered by the optical colloid 30. In practical use, the optical colloid 30 itself is a transparent, translucent or matte material, and has a flexible material such as silicone.

The photoconductor 40 is disposed above the optical colloid 30 in the photoconductor 40 The light guide light incident surface 41 and the light guide light exit surface 42 are formed. The light path formed by the light guide light incident surface 41 and the light guide light exit surface 42 is parallel to the first axial direction (as shown in FIG. 7 and FIG. 8). Show), that is, parallel to the Z axis. A long axis axial direction of the photoconductor 40 itself (as shown in the X axis of FIG. 1A ) is perpendicular to the first axial direction, that is, the photoconductor 40 is a long strip structure, and the strip shape The extended length direction is the direction of the X-axis. In practical use, the photoconductor 40 itself is a transparent, translucent or matte optical component such as a lamp housing, a light guide or an optical lens.

On the other hand, the LED in-vehicle linear light-emitting module disclosed in FIG. 1A to FIG. 1D can be mounted on a vehicle body or any object having a directional light distribution requirement, for example, a daytime running light for a vehicle (DRL) ), Direction Light, Position, Tail, Stop, Backup, Rear Fog, and interior lights. And this creation can be installed on any luminaire with curved surface and meet the requirements of light distribution regulations. On the other hand, the LED on-board linear light-emitting module can be set to have the effect of timing lighting, such as a water light or a breathing light.

FIG. 1E is a schematic structural view of another embodiment of the present invention. Mainly, the components such as the printed circuit board 10, the light bar 20, the optical colloid 30, and the photoconductor 40 are integrally assembled in a casing 50 according to the corresponding position of the structure shown in FIG. 1A. In practice, the housing 50 can be a lamp, a daylight, or a housing 50 of a lamp. The material of the housing 50 can be transparent or translucent, and the housing 50 can be a straight strip. The shape is either a straight shape in the front section and a curved curved shape in the rear section, or the overall housing 50 has a curved curved shape. The creation is not limited and can be changed according to the designer's needs.

As shown in FIG. 2, the optical colloid 30 of the present invention includes a first optical surface 31, a second optical surface 32, and a third optical surface 33. The first optical surface 31 is a top surface of the optical colloid 30; The surface 32 is the optical gel 30, and the two sides extending vertically upward from the surface of the printed circuit board 10; the third optical surface 33 is between the first optical surface 31 and the second optical surface 31. The top surface between them is parallel to the face of the printed circuit board 10. The material used in the optical colloid 30 is The high-transparency silicone, the optical colloid 30 needs to be optically designed, and the optical light guide 40 is used to effectively utilize the light of the colloidal surface to increase optical utilization, so that the module has high brightness and high brightness. The line source effect of intensity and high luminance uniformity, and finally applied to the lamp can pass the requirements of the light distribution regulations.

The present invention also discloses a method for integrally forming the optical colloid 30 and the printed circuit board 10, so that the light-emitting diode 22 can be completely embedded in the optical colloid 30. That is, the optical colloid 30 is formed on the actual manufacturing process by covering the printed circuit board 10 on which the light bar 20 is provided by a columnar mold having an inner portion of the column mold Shapes of the first optical surface 31, the second optical surface 32, and the third optical surface 33, and thereafter, performing potting on the columnar mold; after the optical colloid 30 is formed, the column is formed The mold is removed to form a structural component that integrates the optical colloid 30 with the printed circuit board 10, and the components of the plurality of LEDs 22 are embedded in the optical colloid 30. In another embodiment, the optical colloid 30 and the printed circuit board 10 are integrally formed by integral injection molding, and the light bar 20 is embedded in the optical colloid 30.

Furthermore, different angular ranges of embodiments of the first optical face 31, the second optical face 32, and the third optical face 33 are disclosed in FIG. The first optical surface 31 is a plane, a curved surface, a spherical surface, an elliptical surface or an aspherical curved surface, as shown by the dashed line of the upper and lower circular arcs of the first optical surface 31 in FIG. The structure of the second optical surface 32 perpendicular to the side surface of the printed circuit board 10 can be implemented as an inclined surface which is a fixed point above and a lower end which is in contact with the printed circuit board 10 An inclined surface that is inclined outwardly or inwardly, as shown by the broken line in FIG. 2, and the angle of the inclined surface is between ±50 degrees, that is, the inclined surface may be a vertical surface and an outwardly inclined surface. Or the side that is inclined to the inside. The plane of the third optical surface 33 parallel to the printed circuit board may be an inclined surface which is a fixed point with the end point of the second optical surface 32, and the first optical surface The surface formed by the end points of the 31 contact is parallel to the Y axis, or is inclined upwards and downwards. The angle of the bevel is between ±20 degrees, as shown in Figure 2.

FIG. 3 illustrates the different functions that can be produced by the structure of the optical colloid 30 in the present invention. The outer structure of the optical colloid 30 is a condensing type, and the function of the first optical surface 31 is to receive a small angle of light emitted by the light source. The second optical surface 32 receives the large-angle light emitted by the light source, so that the light can be effectively utilized; and the third optical surface 33 is the light-emitting surface after the large-angle light passes through the second optical surface 32. It can increase the width of the gel and enhance the overall visual effect, so that the visual effect of the daytime running light of the vehicle presents a uniform linear light source and meets the requirements of the regulations.

4A, 4B, 4C, and 4D are structural views further illustrating different embodiments of the first optical surface 31 of the present invention. The first optical surface 31 of the optical colloid 30 can be a curved surface or a flat surface, and the curved surface type is spherical or aspherical. The main purpose is to adjust the main light distribution of the light source in the Y-axis according to the designer's needs, for example: LED The illumination angle is 155 degrees, and after the first optical surface 31 of the present creation, the illumination angle is reduced to 20 degrees, and the light intensity of 100% or more can be increased. 4A is different from FIG. 4B in that the curvature of the circular arc is different, and FIG. 4C is a modeling structure in which the first optical surface 31 is designed to have a continuous arc of the first optical A surface 31a and a first optical B surface 31b. It is a circular arc structure with a continuous double convex convex curved surface, and the double circular arc structure can further be applied with the double concentrating effect of the double row light bar structure embodiment. 4D is a first optical A surface 31a and a first optical B surface 31b of a circular arc structure having a biconvex curved surface, the difference being that the light bar 20 is designed as a double light strip, and the light of each of the light strips 20 is illuminated. The light condensing action is performed for each of the first optical A surface 31a and the first optical B surface 31b.

5A, 5B, and 5C are structural views further illustrating different embodiments of the second optical surface 32 of the present invention. The second optical surface is a vertical surface, a slanted surface, a concave curved surface or a convex curved surface, and the main reason is that the Y-axis large-angle light can be slightly adjusted according to the use requirement, for example, the LED illuminating angle is 155 degrees. With the second optical surface 32 of the creation, the illumination angle is reduced to 30 degrees, and the light intensity of 70% or more can be increased. In addition, if the first optical surface 31 and the second optical surface 32 are simultaneously matched For use, the Y-axis illumination angle can be reduced to 20 degrees, and the overall light intensity maximum is increased by more than 200%. When the light is reduced to within 10 degrees, the daily running light regulations can be easily achieved. The second optical surface 32 of FIG. 5A is an obliquely curved surface, the second optical surface 32 of FIG. 5B is an oblique plane inclined to the inner side, and the second optical surface 32 of FIG. 5C is a concave curved surface.

6A, 6B, 6C, and 6D are structural views further illustrating different embodiments of the third optical surface 33 of the present invention. The third optical surface 33 can be a plane, a convex curved surface or a concave curved surface. The main consideration is that the light distribution and the visual uniformity of the Y axis can be adjusted according to the needs of the user. In FIG. 6A, the third optical surface 33 is a convex curved surface, the third optical surface 33 of FIG. 6B is a flat surface, the third optical surface of FIG. 6C is a concave curved surface, and the third optical surface 33 of FIG. 6D individually includes a third optical A surface. 33a and a third optical B surface 33b, the third optical A surface 33a and the third optical B surface 33b are continuous arcuate biconvex curved surfaces.

Figure 7 is a side elevational view of the second embodiment of the present invention, including a printed circuit board 10, a first light strip 20a, a second light strip 20b, an optical colloid 30, and a light conductor 40. The second embodiment of the present invention is different from the first embodiment in that the light bar 20 is partially provided with a first light bar 20a and a second light bar 20b, and the first optical surface 31 of the optical colloid 30 is provided with the foregoing A modeling structure of a continuous convex arc of an optical A surface 31a and a first optical B surface 31b. The second embodiment functions as a light bar using two different color LEDs on the printed circuit board 10. The optical colloid 30 has an outer shape that adjusts the first optical surface 30 to a hyperboloid to correspond to two different colors. LEDs increase light efficiency and increase light intensity. Further, the first optical A surface 31a is a condensing effect corresponding to the first light bar 20a, and the first optical B surface is a condensing effect corresponding to the second light bar 20b.

Figure 8 is a side elevational view showing the structure of the third embodiment of the present invention. The difference from the first embodiment is that the light incident surface 41 of the light conductor is a convex curved surface, that is, the light incident surface 41 of the light conductor can be a plane, a convex curved surface or a concave curved surface; likewise, the light conductor The light exit surface 42 can also be a plane, a concave curved surface or a convex curved surface. Practical use In the above, the overall device of the present invention can be matched with the light-conducting light-incident surface 41 of the photoconductor 40 (for example, an outer lamp housing, an inner lamp housing, an optical lens or a transparent optical plastic member) and the light-emitting surface 42 of the optical conductor, and the surface type thereof can be Individually flat, convex or concave curved surfaces can be set according to actual needs.

9 is a side view showing the structure of the fourth embodiment of the present invention, including at least one printed circuit board 10, a first light bar 20a and a second light bar 20b, at least one optical colloid 30, and the optical colloid 30 has a first The optical surface 31 and the second optical surface 32 have at least one photoconductor 40. The fourth embodiment of the present invention differs from the first embodiment in that the light bar 20 is provided with a first light bar 20a and a second light bar 20b. Similarly, the first light bar 20a and the second light bar 20b are arranged in parallel and disposed on the printed circuit board 10; the first light bar 20a and the second light bar 20b are composed of a plurality of light emitting diodes. The body 22 is formed by a linear arrangement. The plurality of light-emitting diodes 22 are electrically connected to the printed circuit board 10, and the distance between the plurality of light-emitting diodes 22 is an equal interval.

The optical colloid 30 of the fourth embodiment has only the first optical surface 31 and the second optical surface 32, wherein the first optical surface 31 is the top surface of the optical colloid 30, and is a plane parallel to the Y-axis; the second optical surface 32 is two side faces of the optical colloid 30 which are vertically extended by the printed circuit board 10, and are two side faces perpendicular to the Y-axis. Similarly, the optical colloid 30 is directly formed on the printed circuit board 10 and covers all of the plurality of LEDs 22 in the first strip 20a and the second strip 20b in a full coverage. And the light incident surface 41 of the photoconductor 40 is a biconvex curved surface, and the light exit surface 42 of the photoconductor is a single convex curved surface, wherein the biconvex curved surface of the light incident surface of the optical conductor and the single convex curved surface of the light emitting surface of the optical conductor are formed. The path of the light path is parallel to the first axis (ie, the Z axis). The photoconductor 40 itself is similarly elongated, and its long axis axial direction (ie, the X axis) is perpendicular to the first axial direction, and the light incident surface of the photoconductor has a biconvex curved surface structure, mainly Corresponding to the illumination angles of the first light bar 20a and the second light bar 20b, respectively, it has the function of collecting and collecting light.

In summary, the LED on-board linear light-emitting module of the present invention has the advantages of good visual effect, no darker conduction distance of the light guide strip, and a small and flexible module. It is easy to match the advantages of various free-curve-shaped lights, so that the car factory can design a variety of lights, and can have more diverse creative thinking. The present invention adds the optical colloid 30 and the photoconductor 40 to the light bar 20, and the different optical surfaces of the optical colloid 30 enable the light bar 20 to greatly enhance the light effect, so that the module has high brightness and high uniformity, and is used for The lamp can meet the strict high light intensity requirements of the lamp light distribution regulations and has excellent visual effects. Obviously, this creation case is extremely qualified for patent application.

However, the description of the present invention is merely illustrative of the preferred embodiment, and the scope of protection of the present invention is not limited thereto, and any technique for local variation, correction or addition is not deviated from the scope of protection of the present invention. in.

Claims (11)

An LED in-vehicle linear light-emitting module comprises: at least one printed circuit board; at least one light bar is disposed on the at least one printed circuit board, the light bar is composed of a plurality of light-emitting diodes arranged in a line, the plural The light emitting diodes are electrically connected to the at least one printed circuit board, and the distance between the plurality of light emitting diodes is an equal interval, and the direction of the vertical light emitting of the plurality of light emitting diodes is a first An optical colloid, the optical colloid is directly integrally formed on the at least one printed circuit board and completely covers each of the plurality of light emitting diodes, the optical colloid includes a first optical surface is a top surface of the optical gel; a second optical surface is a side surface of the optical gel that extends vertically upward from the at least one printed circuit board; and a third optical surface is a top surface between the first optical surface and the second optical surface is parallel to the surface of the at least one printed circuit board; a light conductor is disposed above the optical gel, and the light conductor includes a light conductor Glossy surface a light-emitting surface of the light conductor, the light path formed by the light-incident surface of the light-conductor and the light-emitting surface of the light-conductor is parallel to the first axial direction, and a long-axis axial direction of the light-conductor itself is perpendicular to the first axial direction And a casing for accommodating the at least one printed circuit board, the at least one light bar, the optical colloid and the photoconductor, and disposed in the interior of the casing. The LED in-vehicle linear light-emitting module of claim 1, wherein the optical colloid is formed by coating a columnar body mold on the at least one printed circuit board on which the at least one light bar is disposed, the column shape The inside of the body mold has the shape of the first optical surface, the second optical surface, and the third optical surface, and the cylindrical body mold is subjected to potting, and after the optical colloid is formed, the column mold is removed. Forming the optical colloid Integrated with the at least one printed circuit board, the plurality of light emitting diodes are embedded in the optical colloid. The LED in-vehicle linear light emitting module of claim 1, wherein the first optical surface is a curved surface, a spherical surface, an elliptical surface or an aspherical curved surface; the second optical surface is perpendicular to the at least one printed circuit board. The side surface may be an inclined surface having an angle of between ±50 degrees; the third optical surface being parallel to the plane of the at least one printed circuit board, the plane may be An inclined surface having an angle of between ±20 degrees. The LED in-vehicle linear light-emitting module of claim 1, wherein the at least one light bar comprises a double-row structure in which a first light bar and a second light bar are arranged in parallel, or a plurality of light bars in a double row or more Parallel arrays of structures; the rows of light strips are single color or different color light emitting diodes. The LED in-vehicle linear light-emitting module of claim 1, wherein the first optical surface is a curved surface or a plane; the second optical surface is a vertical surface, a sloped surface, a concave curved surface or a convex curved surface; The optical surface is a plane, a convex curved surface or a concave curved surface. The LED in-vehicle linear light emitting module of claim 1, wherein the first optical surface comprises a first optical A surface and a first optical B surface, and the first optical A surface and the first optical B surface are continuous circles. Curved biconvex surface. The LED in-vehicle linear light emitting module of claim 1, wherein the third optical surface comprises a third optical A surface and a third optical B surface, wherein the third optical A surface and the third optical B surface are continuous circles. Curved biconvex surface. The LED in-vehicle linear light-emitting module of claim 1, wherein the light-conducting surface of the light conductor is a plane, a concave curved surface or a convex curved surface, and the light-emitting surface of the light conductor is a plane, a concave curved surface or a Convex surface. The LED in-vehicle linear light-emitting module of claim 6, wherein the at least one light bar comprises a double-row structure in which a first light bar and a second light bar are arranged in parallel; and the first optical A surface corresponds to The concentrating light of the first light bar emits light, and the first optical B surface is a condensing effect corresponding to the light emitted by the second light bar. The LED in-vehicle linear light-emitting module according to claim 1, wherein when the size of each of the plurality of light-emitting diodes is 3.5 mm in length and 2.8 mm in width, the pitch is ≦3 mm. An LED on-board linear light-emitting module includes: at least one printed circuit board; a first light bar and a second light bar, which are arranged in parallel and are disposed on the at least one printed circuit board, the first light And the second light bar is composed of a plurality of light emitting diodes arranged in a line, the plurality of light emitting diodes being electrically connected to the at least one printed circuit board, and between the plurality of light emitting diodes The distance between the plurality of LEDs is a first axial direction; an optical colloid is directly formed on the at least one printed circuit board and is fully covered. And coating each of the plurality of light emitting diodes, the optical colloid includes: a first optical surface, which is a top surface of the optical gel; and a second optical surface, in the optical colloid The two sides of the at least one printed circuit board are vertically upwardly disposed; the at least one optical conductor is disposed above the optical colloid, and the at least one optical conductor includes a light incident surface and a light conductor light emitting surface. Light conductor The light path formed by the surface and the light-emitting surface of the light conductor is parallel to the first axial direction, and a long-axis axial direction of the light conductor itself is perpendicular to the first axial direction, and the light-conducting light-emitting surface has a double a structure of the convex curved surface corresponding to the concentrating action of the first light bar and the second light bar; and a housing for accommodating the at least one printed circuit board, the first light bar, the second light a strip, the optical colloid and the photoconductor, and disposed in the interior of the housing; wherein the optical colloid is formed by covering the first strip and the second strip with a columnar mold The at least one printed circuit board has a shape of the first optical surface and the second optical surface, and the like The columnar mold performs potting, after the optical colloid is formed, the column mold is removed, and the optical colloid is formed integrally with the at least one printed circuit board, and the plurality of light emitting diodes are embedded. In the optical colloid.