Dual-focus light condensing structure and vehicle lamp comprising same

Abstract

The present application belongs to the technical field of vehicle lamps, and specifically relates to a dual-focus light condensing structure and a vehicle lamp comprising same. A condenser body comprises a first light condensing structure and a second light condensing structure, wherein the first light condensing structure comprises a first refractive surface and a first total reflection surface, and the second light condensing structure comprises a second refractive surface and a second total reflection surface, the first refractive surface and the second refractive surface being connected to each other in a fitted manner, the first total reflection surface and the second total reflection surface being connected to each other in a fitted manner, and both being located between a light-incident end and a light-emergent end, the first total reflection surface being located on one side of the first refractive surface, and the second total reflection surface being located on one side of the second refractive surface. In the present application, by means of such a dual-focus structure design, even if an LED has two light colors, each of the light colors can be arranged at a focal point, and neither of the two light colors is defocused, thereby preventing functional light patterns from shifting, such that the light emission is efficient, the power consumption is reduced, and the illumination is uniform.

Description

Double-focus light collecting structure and vehicle lamp thereof TECHNICAL FIELD

[0001] The present application belongs to the technical field of vehicle lamps, and particularly relates to a double-focus light collecting structure and vehicle lamp thereof. BACKGROUND

[0002] With the rapid development of vehicle lamp technology, users pursue the diversification of lamp shapes, and production cost and efficiency are problems that vehicle lamp manufacturers urgently need to solve. At present, in the field of vehicle lamps, a scheme of function multiplexing, such as turning and position functions, when sharing one light outlet, most of them adopt direct or reflective schemes, and LED light is emitted after passing through a series of structures.

[0003] In traditional projects, when multiple functions share one light outlet, whether it is direct or reflective, since the light collector has only one focal point, at least one of the two light colors will be out of focus, thereby causing energy loss, low light efficiency, high power consumption, and deviation of each function light type.

[0004] CONTENT OF THE APPLICATION

[0005] Therefore, in order to solve the problems existing in the prior art, the purpose of the present application is to provide a double-focus light collecting structure and vehicle lamp thereof, which has the effects of efficient light emission, reduced power consumption, correct light type, and uniform lighting.

[0006] In order to achieve the above purpose, the technical scheme adopted by the present application is as follows:

[0007] A double-focus light collecting structure, comprising: a light collector body, one end of the light collector body is formed with a light inlet end, the other end of the light collector body is formed with a light outlet end, the light collector body comprises a first light collecting structure and a second light collecting structure which are connected to each other, and the first light collecting structure and the second light collecting structure are located between the light inlet end and the light outlet end.

[0008] The first light collecting structure comprises a first refractive surface and a first total reflection surface, the second light collecting structure comprises a second refractive surface and a second total reflection surface, the first total reflection surface is arranged outside the first refractive surface, the second total reflection surface is arranged outside the second refractive surface, the first refractive surface is lower than the upper end of the first total reflection surface, the second refractive surface is lower than the upper end of the second total reflection surface, the first refractive surface and the first total reflection surface are connected by a second refractive part, the second refractive surface and the second total reflection surface are connected by a second refractive part, and the opening formed by the splicing of the first refractive surface and the second refractive surface is arranged towards the light outlet end.

[0009] The specific technical effect is: the first light condensing structure and the second light condensing structure are spliced, and the design of the double-focus structure is adopted, so that even if the LED has two light colors, each light color is arranged on a focal point, and each light color will not be out of focus, and when multiple functions share one light outlet, the light types of each function will not be offset, the light is efficient, the power consumption is reduced, and the lighting is uniform.

[0010] Further, the first refractive surface has a first focal point, and the second refractive surface has a second focal point, the first focal point is arranged above the second refractive surface and close to the second total reflection surface, and the second focal point is arranged above the first refractive surface and close to the first total reflection surface.

[0011] Further, the cross sections of the first total reflection surface and the second total reflection surface are both inferior arcs, and the cross sections of the first refractive surface and the second refractive surface are both inferior arcs.

[0012] Further, the first refractive surface has a first focal point, and the second refractive surface has a second focal point, the first focal point is arranged above the first refractive surface and close to the first total reflection surface, and the second focal point is arranged above the second refractive surface and close to the second total reflection surface.

[0013] Further, the cross sections of the first total reflection surface and the second total reflection surface are both superior arcs, and the cross sections of the first refractive surface and the second refractive surface are both superior arcs.

[0014] The specific technical effect is: according to the actual LED light color light emitting point requirement, the shape of the first light condensing structure and the second light condensing structure is adjusted, when the cross sections of the first total reflection surface, the second total reflection surface, the first refractive surface and the second refractive surface are all inferior arcs, an olive ball surface shape is formed, when the cross sections of the first total reflection surface, the second total reflection surface, the first refractive surface and the second refractive surface are all superior arcs, a telescope surface shape is formed, the first total reflection surface and the second total reflection surface and the first refractive surface and the second refractive surface can also be in the form of combination of the olive ball surface shape and the telescope surface shape, for example, the first total reflection surface and the second total reflection surface are spliced to form the olive ball surface shape, and the first refractive surface and the second refractive surface are spliced to form the telescope surface shape, the first refractive surface and the second refractive surface are spliced to form the telescope surface shape, and the first total reflection surface and the second total reflection surface are spliced to form the olive ball surface shape.

[0015] Further, the first refractive surface, the first total reflection surface, the second refractive surface, the second total reflection surface and the second refractive part are all provided with diffusion patterns or skin patterns.

[0016] The specific technical effect is: the lighting is more uniform through the diffusion patterns or skin patterns.

[0017] Further, a light guide is further included, one end of the light guide is formed with an inclined total reflection surface, the other end of the light guide is formed with an light outlet, an light inlet is formed at the upper end of the inclined total reflection surface, the light collector body is vertically arranged above the end of the light guide with the inclined total reflection surface, the light inlet is communicated with the light outlet, an angle is formed between the inclined total reflection surface and the light inlet direction or the light outlet direction, the angle ranges from 40° to 50°.

[0018] Further, at least one tooth-shaped body is arranged on the inclined total reflection surface, the tooth-shaped body is V-shaped.

[0019] The specific technical effect is that: by arranging the V-shaped tooth-shaped body, the purpose is to adjust the bright area and the dark area, exchange the neutral energy, and make the lighting more uniform.

[0020] A car lamp, wherein the car lamp comprises an LED and the bifocal light collecting structure as in any one of the preceding embodiments, the LED has two light emitting points, and the two light emitting points are arranged to coincide with the first focal point and the second focal point.

[0021] The specific technical effect is that: even if the LED has two light emitting points with different focal points, each light color is arranged on a focal point, and will not be out of focus, and when multiple functions share one light outlet, the light types of the functions will not be offset, the light emission is efficient, the power consumption is reduced, and the lighting is uniform.

[0022] Further, the light colors of the two light emitting points are different, and the two light emitting points are arranged in front of and behind each other.

[0023] The specific technical effect is that: the arrangement mode can be changed according to actual needs.

[0024] The beneficial effects of the present application are:

[0025] The first light collecting structure and the second light collecting structure are spliced, have two focal points of the first focal point and the second focal point, and the bifocal structure is designed, even if the LED has two light colors, each light color is arranged on a focal point, and will not be out of focus, and when multiple functions share one light outlet, the light types of the functions will not be offset, the light emission is efficient, the power consumption is reduced, and the lighting is uniform.

[0026] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the following preferred embodiments are described in detail below, and the accompanying drawings are described as follows. BRIEF DESCRIPTION OF DRAWINGS

[0027] In order to more clearly illustrate the technical solutions in the specific embodiments or prior art of the present application, the drawings needed in the specific embodiments or prior art description will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present application, and all other embodiments obtained by those skilled in the art without creative labor based on these drawings also belong to the protection scope of the present application.

[0028] Fig. 1 is a light path diagram of embodiment 1 of the present application;

[0029] Fig. 2 is a top view of embodiment 1 of the present application;

[0030] Fig. 3 is a light path diagram of embodiment 2 of the present application;

[0031] Fig. 4 is a top view of embodiment 2 of the present application;

[0032] Fig. 5 is a light path diagram of embodiment 3 of the present application;

[0033] Fig. 6 is a structural schematic diagram of embodiment 4 of the present application;

[0034] Fig. 7 is a light path diagram of Fig. 6.

[0035] In the drawings: 1, light concentrator body; 2, light inlet end; 3, light outlet end; 4, first light concentrating structure; 5, second refracting part; 6, second light concentrating structure; 7, first focal point; 8, second focal point; 9, first refracting surface; 10, second refracting surface; 11, first total reflection surface; 12, second total reflection surface; 13, light guide body; 14, inclined total reflection surface; 15, light outlet surface; 16, light inlet port; 17, toothed body; 18, light emitting point. DETAILED DESCRIPTION

[0036] In order to make the purpose, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions of the present application will be described clearly and completely below in combination with the drawings. Obviously, the described embodiments are some of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor also belong to the protection scope of the present application.

[0037] Embodiment 1:

[0038] As shown in Figs. 1-2, a bifocal light concentrating structure, which comprises: a light concentrator body 1, one end of the light concentrator body 1 is formed with a light inlet end 2, the other end of the light concentrator body 1 is formed with a light outlet end 3, the light concentrator body 1 comprises a first light concentrating structure 4 and a second light concentrating structure 6 which are connected to each other, the first light concentrating structure 4 and the second light concentrating structure 6 are both located between the light inlet end 2 and the light outlet end 3;

[0039] The first light collecting structure 4 comprises a first refractive surface 9 and a first total reflection surface 11, and the second light collecting structure 6 comprises a second refractive surface 10 and a second total reflection surface 12. The first total reflection surface 11 is arranged outside the first refractive surface 9, and the second total reflection surface 12 is arranged outside the second refractive surface 10. The first refractive surface 9 is lower than the upper end of the first total reflection surface 11, and the second refractive surface 10 is lower than the upper end of the second total reflection surface 12. The first refractive surface 9 and the second refractive surface 10 are connected by the second refractive part 5, and the opening formed by the first refractive surface 9 and the second refractive surface 10 is arranged towards the light emitting end 3.

[0040] It should be noted that the first light collecting structure 4 and the second light collecting structure 6 are spliced, the first refractive surface 9 has a first focal point 7, and the second refractive surface 10 has a second focal point 8. The design of the double focal point structure ensures that each light color is set on a focal point, and the light color is not out of focus, which guarantees that the light type of each function will not deviate when multiple functions share one light emitting port, and the light emitting is efficient, the power consumption is reduced, and the lighting is uniform.

[0041] The first refractive surface 9 is lower than the upper end of the first total reflection surface 11, and the second refractive surface 10 is lower than the upper end of the second total reflection surface 12. The design maximizes the light efficiency, and the opening formed by the connection of the first refractive surface 9 and the second refractive surface 10 is arranged towards the light emitting end 3. The design ensures that the first refractive surface 9, the second refractive surface 10, and the second refractive part 5 are matched with the first total reflection surface 11 and the second total reflection surface 12 to collimate the light, and the lighting is uniform.

[0042] The first refractive surface 9 has a first focal point 7, and the second refractive surface 10 has a second focal point 8. The first focal point 7 is located above the second refractive surface 10 and close to the second total reflection surface 12, and the second focal point 8 is located above the first refractive surface 9 and close to the first total reflection surface 11.

[0043] The cross sections of the first total reflection surface 11 and the second total reflection surface 12 are both arc-shaped, and the cross sections of the first refractive surface 9 and the second refractive surface 10 are both arc-shaped.

[0044] It should be noted that according to the actual LED light color emitting point 18 requirements, the shape of the first light collecting structure 4 and the second light collecting structure 6 is adjusted. When the cross sections of the first total reflection surface 11, the second total reflection surface 12, the first refractive surface 9, and the second refractive surface 10 are all arc-shaped, as shown in FIG. 2, an olive ball surface shape is formed.

[0045] Diffusion patterns or skin patterns are arranged on the first refractive surface 9, the first total reflection surface 11, the second refractive surface 10, the second total reflection surface 12, and the second refractive part 5.

[0046] It should be noted that the diffusion pattern or the skin pattern is set to make the lighting more uniform.

[0047] As shown in Fig. 1, a vehicle lamp, comprising LED and bifocal light collecting structure as any one of the above, the LED has two light emitting points 18, wherein the left light emitting point 18 is arranged coincident with the second focal point 8, and the right light emitting point 18 is arranged coincident with the first focal point 7; part of the light emitted from the second focal point 8 is refracted by the second refractive surface 10 and then collimated and emitted from the light emitting end 3, and the other part is refracted by the second refractive part 5 and then collimated and emitted from the light emitting end 3 after total reflection by the first total reflection surface 11; wherein part of the light emitted from the first focal point 7 is refracted by the first refractive surface 9 and then collimated and emitted from the light emitting end 3, and the other part is refracted by the second refractive part 5 and then collimated and emitted from the light emitting end 3 after total reflection by the second total reflection surface 12.

[0048] As shown in Fig. 3 to Fig. 4,

[0049] Embodiment 2:

[0050] The difference from embodiment 1 is that:

[0051] The first refractive surface 9 has the first focal point 7, and the second refractive surface 10 has the second focal point 8; the first focal point 7 is arranged above the first refractive surface 9 and close to the first total reflection surface 11, and the second focal point 8 is arranged above the second refractive surface 10 and close to the second total reflection surface 12.

[0052] The cross sections of the first total reflection surface 11 and the second total reflection surface 12 are both hyperbolic arcs, and the cross sections of the first refractive surface 9 and the second refractive surface 10 are both hyperbolic arcs.

[0053] It should be noted that according to the actual LED light color light emitting point 18 requirements, the shape of the first light collecting structure 4 and the second light collecting structure 6 is adjusted, and when the cross sections of the first total reflection surface 11, the second total reflection surface 12, the first refractive surface 9 and the second refractive surface 10 are all hyperbolic arcs, as shown in Fig. 4, a telescope face shape is formed.

[0054] Preferably, the first total reflection surface 11 and the second total reflection surface 12, and the first refractive surface 9 and the second refractive surface 10 can also be in the form of combination of the shape of the football and the shape of the telescope, such as the first total reflection surface 11 and the second total reflection surface 12 are spliced to form the shape of the football, and the first refractive surface 9 and the second refractive surface 10 are spliced to form the shape of the telescope; the first refractive surface 9 and the second refractive surface 10 are spliced to form the shape of the telescope, and the first total reflection surface 11 and the second total reflection surface 12 are spliced to form the shape of the football.

[0055] As shown in Fig. 3, a vehicle lamp, wherein the light collector body 1 comprises LED and bifocal light collecting structure as any one of the above, the LED has two light emitting points 18, wherein the left light emitting point 18 is arranged coincident with the first focal point 7, and the right light emitting point 18 is arranged coincident with the second focal point 8, wherein part of the light emitted from the first focal point 7 is refracted by the first refractive surface 9 and collimated to exit from the light exit end 3, and the other part is refracted by the second refractive part 5 and hits the second total reflection surface 12, and after total reflection, collimated to exit from the light exit end 3; wherein part of the light emitted from the focal point is refracted by the second refractive surface 10 and collimated to exit from the light exit end 3, and the other part is refracted by the second refractive part 5 and hits the first total reflection surface 11, and after total reflection, collimated to exit from the light exit end 3.

[0056] The above is only the preferred embodiment of the present application, and does not limit the implementation and protection scope of the present application.

[0057] The present application has the following implementation on the basis of the above:

[0058] Embodiment 3:

[0059] As shown in Fig. 5,

[0060] The difference from embodiment 1 or embodiment 2 is that:

[0061] Further comprising a light guide body 13, one end of the light guide body 13 is formed with an inclined total reflection surface 14, the other end of the light guide body 13 is formed with a light exit surface 15, an upper end of the inclined total reflection surface 14 is provided with a light inlet 16, the light collector body 1 is vertically arranged above the end of the light guide body 13 provided with the inclined total reflection surface 14, the light inlet 16 is in communication with the light exit end 3, and an included angle is formed between the inclined total reflection surface 14 and the light inlet direction or the light exit direction, and the included angle ranges from 40° to 50°.

[0062] The inclined total reflection surface 14 can be provided with a light distribution pattern according to requirements.

[0063] The specific light path of the present embodiment is as follows:

[0064] The LED has two different focal points of light emitting points 18, wherein the left light emitting point 18 is arranged to coincide with the second focal point 8, and the right light emitting point 18 is arranged to coincide with the first focal point 7. Part of the light emitted from the second focal point 8 is refracted by the second refracting surface 10, collimated and emitted to the inclined total reflection surface 14, totally reflected by the inclined total reflection surface 14, and emitted from the light emitting surface 15. Another part of the light is refracted by the second refracting part 5, emitted to the first total reflection surface 11, totally reflected by the first total reflection surface 11, collimated and emitted to the inclined total reflection surface 14, totally reflected by the inclined total reflection surface 14, and emitted from the light emitting surface 15. Part of the light emitted from the first focal point 7 is refracted by the first refracting surface 9, collimated and emitted to the inclined total reflection surface 14, totally reflected by the inclined total reflection surface 14, and emitted from the light emitting surface 15. Another part of the light is refracted by the second refracting part 5, emitted to the second total reflection surface 12, totally reflected by the second total reflection surface 12, collimated and emitted to the inclined total reflection surface 14, totally reflected by the inclined total reflection surface 14, and emitted from the light emitting surface 15.

[0065] Embodiment 4:

[0066] As shown in FIGS. 6-7,

[0067] The difference between the embodiment 3 and the embodiment 4 is that:

[0068] The inclined total reflection surface 14 is provided with at least one tooth-shaped body 17, and the tooth-shaped body 17 is V-shaped.

[0069] The specific light path of the embodiment is as follows:

[0070] The LED has two different focal points of light emitting points 18, wherein the left light emitting point 18 is arranged to coincide with the second focal point 8, and the right light emitting point 18 is arranged to coincide with the first focal point 7. Part of the light emitted from the second focal point 8 is refracted by the second refracting surface 10, collimated and emitted to the inclined total reflection surface 14, totally reflected by the inclined total reflection surface 14, and emitted from the light emitting surface 15. Another part of the light is refracted by the second refracting part 5, emitted to the first total reflection surface 11, totally reflected by the first total reflection surface 11, collimated and emitted to the inclined total reflection surface 14, totally reflected by the inclined total reflection surface 14, and emitted from the light emitting surface 15. Part of the light emitted from the first focal point 7 is refracted by the first refracting surface 9, collimated and emitted to the inclined total reflection surface 14, totally reflected by the inclined total reflection surface 14, and emitted from the light emitting surface 15. Another part of the light is refracted by the second refracting part 5, emitted to the second total reflection surface 12, totally reflected by the second total reflection surface 12, collimated and emitted to the inclined total reflection surface 14, totally reflected by the inclined total reflection surface 14, and emitted from the light emitting surface 15. The purpose is to adjust the bright and dark areas, exchange neutral energy, and make the lighting more uniform.

[0071] In summary, the beneficial effects of the present application are:

[0072] The first light focusing structure 4 and the second light focusing structure 6 are spliced, have two focal points of the first focal point 7 and the second focal point 8, and the design of the double focal point structure is adopted. Even if the LED has two light colors, each light color is arranged on a focal point, and the defocusing does not occur, the shift of the light type of each function does not occur when the multifunction shares one light outlet, the light emission is efficient, the power consumption is reduced, and the lighting is uniform.

[0073] The various devices selected in the present application are all general standard parts or components known to those skilled in the art, and their structures and principles can be known by those skilled in the art through technical manuals or through conventional experimental methods.

[0074] In the description of the embodiments of the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting" should be understood in a broad sense, for example, can be fixedly connected, can be detachably connected, or integrally connected; can be mechanically connected, can be electrically connected; can be directly connected, can be indirectly connected through an intermediate medium, and can be the communication inside two elements. Those skilled in the art can understand the specific meanings of the above terms in the present application according to the specific circumstances.

[0075] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0076] Based on the above ideal embodiments according to the present application, through the above description, relevant personnel can make various changes and modifications without deviating from the scope of the technical idea of the present application. The technical scope of the present application is not limited to the contents in the specification, and the technical scope must be determined according to the scope of the claims.

Claims

1. A bifocal light concentrating structure, characterized by The utility model relates to a light condenser, including: The light condenser body (1) one end forms with a light inlet end (2), the other end of light condenser body (1) forms with a light outlet end (3), and the light condenser body (1) includes mutually spliced first light condensing structure (4) and second light condensing structure (6), and first light condensing structure (4) and second light condensing structure (6) are located between light inlet end (2) and light outlet end (3); First light condensing structure (4) includes first refractive surface (9) and first total reflection surface (11), and second light condensing structure (6) includes second refractive surface (10) and second total reflection surface (12), and first total reflection surface (11) is arranged on the outside of first refractive surface (9), and second total reflection surface (12) is arranged on the outside of second refractive surface (10), and first refractive surface (9) is lower than the upper end of first total reflection surface (11), and second refractive surface (10) is lower than the upper end of second total reflection surface (12), and first refractive surface (9) and second refractive surface (10) are connected by second refractive part (5) between first total reflection surface (11), and second refractive surface (10) and second total reflection surface (12) are connected by second refractive part (5), and the opening formed by splicing first refractive surface (9) and second refractive surface (10) is arranged towards light outlet end (3).

2. The bifocal light concentrating structure as defined in claim 1, characterized in that First refractive surface (9) has first focal point (7), and second refractive surface (10) has second focal point (8), and first focal point (7) is arranged above second refractive surface (10) and is close to second total reflection surface (12), and second focal point (8) is arranged above first refractive surface (9) and is close to first total reflection surface (11).

3. The bifocal light concentrating structure as defined in claim 2, wherein The cross section of first total reflection surface (11) and second total reflection surface (12) is all arc of inferiority, and the cross section of first refractive surface (9) and second refractive surface (10) is all arc of inferiority.

4. The bifocal light concentrating structure as defined in claim 1, wherein First refractive surface (9) has first focal point (7), and second refractive surface (10) has second focal point (8), and first focal point (7) is arranged above first refractive surface (9) and is close to first total reflection surface (11), and second focal point (8) is arranged above second refractive surface (10) and is close to second total reflection surface (12).

5. The bifocal light concentrating structure as defined in claim 4, wherein The cross section of first total reflection surface (11) and second total reflection surface (12) is all superior arc, and the cross section of first refractive surface (9) and second refractive surface (10) is all superior arc.

6. The bifocal light concentrating structure as defined in claim 1, wherein Diffusion patterns or skin patterns are arranged on first refractive surface (9), first total reflection surface (11), second refractive surface (10), second total reflection surface (12) and second refractive part (5).

7. The bifocal light concentrating structure as defined in claim 1, wherein The application also comprises a light guide (13), one end of which is provided with an inclined total reflection surface (14), the other end of which is provided with a light outlet surface (15), the upper end of the inclined total reflection surface (14) is provided with a light inlet opening (16), the light guide (13) is vertically arranged above the one end of the light guide (13) provided with the inclined total reflection surface (14), the light inlet opening (16) is communicated with the light outlet end (3), and an included angle is formed between the inclined total reflection surface (14) and the light inlet direction or the light outlet direction, and the included angle ranges from 40° to 50°.

8. The bifocal light concentrating structure as defined in claim 7, wherein The inclined total reflection surface (14) is provided with at least one tooth-shaped body (17), and the tooth-shaped body (17) is V-shaped.

9. A vehicle lamp characterized by The application comprises an LED and a bifocal light collecting structure as claimed in any one of claims 2 or 4, the LED has two light emitting points (18), and the two light emitting points (18) are arranged to coincide with the first focal point (7) and the second focal point (8).

10. A vehicle lamp as claimed in claim 9, characterised in that, The light colors of the two light emitting points (18) are different from each other, and the two light emitting points (18) are arranged in front of and behind each other.

Images