Optical system and vehicle lamp

Abstract

The utility model provides an optical system and a vehicle lamp, and relates to the field of optics. The optical system comprises a light source, a light guide assembly and a light guide piece, the light source is arranged at the end of one side of the light guide assembly, and the light guide piece is arranged at the end of the other side of the light guide assembly; the light guide assembly comprises at least one light guide pipe, and the light guide pipe is provided with corresponding light guide teeth and a first light guide emergent surface; the light guide piece comprises a reflecting part and a light emitting part; light emitted by the light source enters the light guide assembly from the end portion of one side of the light guide assembly, part of the light is emitted from the first light guide light-emitting face after being reflected by the light guide teeth, and the other part of the light is emitted from the end portion of the other side of the light guide assembly, enters the light guide piece and is emitted from the light-emitting portion after being reflected by the reflecting portion of the light guide piece. According to the optical system, stray light at the end of the light guide assembly can be utilized again through the arrangement of the light guide piece, and the lighting uniformity, the light utilization rate and the optical efficiency of the optical system are improved.

Description

Technical Field

[0001] The utility model relates to the field of optics, and in particular to an optical system and a vehicle lamp. Background Art

[0002] The light guide assembly in the car lamp realizes the function of guiding the light emitted by the light source to the light output position set by the car lamp, and has been widely used in current car lamps. However, a bright spot is easily formed at the end of the light guide assembly, which affects the lighting uniformity of the light guide assembly. At the same time, this part of the stray light at the end of the light guide assembly is not well utilized, resulting in a decrease in the light utilization rate and optical efficiency of the light guide assembly. Utility Model Content

[0003] The utility model aims to provide an optical system, which can utilize the light at the end of a light guide component by setting a light guide, thereby improving the lighting uniformity, light utilization rate and optical efficiency of the light guide component.

[0004] The embodiment of the utility model is achieved as follows:

[0005] In one aspect of the utility model, an optical system is provided, comprising a light source, a light guide assembly and a light guide, wherein the light source is arranged at one end of the light guide assembly, and the light guide is arranged at the other end of the light guide assembly; the light guide assembly comprises at least one light guide tube, and the light guide tube is provided with corresponding light guide teeth and a first light guide light-emitting surface; the light guide comprises a reflecting portion and a light emitting portion; light emitted by the light source enters the light guide assembly from one end of the light guide assembly, a part of the light is reflected by the light guide teeth and then emitted from the first light guide light-emitting surface, and another part of the light is emitted from the other end of the light guide assembly and enters the light guide, and then is reflected by the reflecting portion of the light guide and then emitted from the light emitting portion.

[0006] Optionally, the reflecting part includes at least one first reflecting surface, the light emitting part is provided with a light emitting surface, and a second reflecting surface is provided on the opposite side of the light emitting surface. The light emitted into the light guide from one end of the optical waveguide component can be reflected by at least one first reflecting surface and then emitted toward the second reflecting surface, and then reflected by the second reflecting surface and emitted from the light emitting surface.

[0007] Optionally, an inclined surface is provided at the end of the light guide component close to one side of the light guide, and the inclined surface is arranged toward the light incident surface of the light guide component. Light emitted from the light source enters the light guide component from one end of the light guide component, and part of the light is reflected by the inclined surface and emitted from the other end of the light guide component and enters the light guide component, and is reflected by the reflecting part of the light guide component and emitted from the light emitting part.

[0008] Optionally, the end of the light guide component close to one side of the light guide is flush with the light incident surface of the light guide component, and the light emitted by the light source enters the light guide component from one end of the light guide component, and part of the light is emitted through the other end of the light pipe and directly enters the light guide component, and is reflected by the reflective part of the light guide component and then emitted from the light emitting part.

[0009] Optionally, the light guide has a light incident surface, and the light guide assembly has a second light guide light emitting surface at one end portion facing the light guide, and the area of ​​the light incident surface is larger than the area of ​​the second light guide light emitting surface.

[0010] Optionally, a spherical light guide column is provided on the light emitting side of the light guide assembly, and a condenser is provided on the side of the light guide member facing the light emitting surface of the second light guide of the light guide assembly, and the focus of the spherical light guide column coincides with the focus of the condenser.

[0011] Optionally, the concentrator is a direct concentrator or a reflective concentrator.

[0012] Optionally, the light emitting surface is a diffuse reflection surface, which can realize diffuse reflection of light, and the diffuse reflection surface includes convex points evenly distributed on the light emitting surface.

[0013] Optionally, the light emitting surface is a diffuse reflection surface, which can realize diffuse reflection of light, and the diffuse reflection surface includes stripes evenly distributed on the light emitting surface.

[0014] Another aspect of the present invention provides a vehicle lamp, comprising the above-mentioned optical system.

[0015] The beneficial effects of the present invention include at least one of the following:

[0016] The present application provides an optical system, including a light source, a light guide assembly and a light guide, wherein the light source is arranged at one end of the light guide assembly, and the light guide is arranged at the other end of the light guide assembly; the light guide assembly includes at least one light guide tube, and the light guide tube is provided with corresponding light guide teeth and a first light guide light-emitting surface; the light guide includes a reflecting part and a light-emitting part; the light emitted by the light source enters the light guide assembly from one end of the light guide assembly, a part of the light is reflected by the light guide teeth and then emitted from the first light guide light-emitting surface, and another part of the light is emitted from the other end of the light guide assembly and enters the light guide, and then is reflected by the reflecting part of the light guide and then emitted from the light-emitting part. The optical system obtained by the above design can reuse the stray light at the end of the light guide assembly through the arrangement of the light guide, thereby improving the lighting uniformity, light utilization rate and optical efficiency of the optical system.

[0017] The present application also provides a vehicle lamp, comprising the above optical system. The vehicle lamp can reuse the stray light at the end of the light guide assembly through the cooperation between the light guide assembly and the light guide member, thereby improving the lighting uniformity, light utilization rate and optical efficiency of the vehicle lamp, thereby reducing the number of LEDs and circuit boards and reducing production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 One of the structural schematic diagrams of the optical system provided by the embodiment of the utility model;

[0020] Figure 2 The second structural diagram of the optical system provided by the embodiment of the utility model;

[0021] Figure 3 One of the optical path schematic diagrams of the optical system provided by the embodiment of the utility model;

[0022] Figure 4 The second optical path schematic diagram of the optical system provided by the embodiment of the utility model;

[0023] Figure 5 The third structural diagram of the optical system provided by the embodiment of the utility model;

[0024] Figure 6 A fourth structural diagram of an optical system provided in an embodiment of the utility model;

[0025] Figure 7 for Figure 6 Schematic diagram of the light path.

[0026] Icon: 100-optical system; 110-light guide assembly; 111-light guide tube; 1111-inclined surface; 112a-first light guide outlet surface; 112b-second light guide outlet surface; 113-ball head light guide column; 120-light guide member; 121-reflecting portion; 1211-first reflecting surface; 122-light emitting portion; 1221-second reflecting surface; 1222-light emitting surface; 123-condenser. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0028] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0030] In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, or the orientation or position relationship in which the utility model product is usually placed when in use, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0031] In addition, the terms "horizontal", "vertical" and the like do not mean that the components are required to be absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0032] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0033] Please refer to Figure 1 and Figure 2In one aspect of an embodiment of the present application, an optical system 100 is provided, comprising a light source, a light guide assembly 110 and a light guide member 120, wherein the light source is arranged at one end of the light guide assembly 110, and the light guide member 120 is arranged at the other end of the light guide assembly 110; the light guide assembly 110 comprises at least one light guide tube 111, and the light guide tube 111 is provided with corresponding light guide teeth and a first light guide light-emitting surface 112a; the light guide member 120 comprises a reflecting portion 121 and a light emitting portion 122; light emitted by the light source enters the light guide assembly 110 from one end of the light guide assembly 110, a part of the light is reflected by the light guide teeth and then emitted from the light guide light-emitting surface 1222, and another part of the light is emitted from the other end of the light guide assembly 110 and enters the light guide member 120, and then is reflected by the reflecting portion 121 in the light guide member 120 and then emitted from the light emitting portion 122.

[0034] Specifically, the present application provides an optical system 100, which includes a light source, a light guide component 110 and a light guide 120. The light guide component 110 includes at least one light guide tube 111, and the light guide tube 111 is provided with corresponding light guide teeth and a first light guide light-emitting surface 112a. The light source is arranged at one end of the light guide component 110, and the light emitted by the light source enters the light guide component 110 through the end, and part of the light is reflected by the light guide teeth and then emitted from the first light guide light-emitting surface 112a, and the other part of the light continues to propagate in the light guide tube 111 and is emitted from the other end of the light guide component 110; the light guide 120 is arranged corresponding to the other end of the light guide component 110, and the light emitted from the end can enter the light guide 120, and the light guide 120 includes a reflecting portion 121 for reflecting light and a light emitting portion 122 for emitting light, and the light emitting portion 122 is provided with a light emitting surface 1222, as shown in FIG. Figure 4 As shown, the light is reflected by the reflective portion 121 and then emitted from the light emitting surface 1222 of the light emitting portion 122 .

[0035] The light guide 120 is disposed at the other end of the light guide assembly 110, so that the light that originally did not exit through the light emitting surface 112a of the first light guide can enter the light guide 120 after exiting through the end of the light guide assembly 110, and illuminate the light guide 120, thereby making good use of this part of the light that originally formed stray light, and the light guide 120 forms a lighting effect different from that of the light guide assembly 110. The shape of the light guide 120 is not limited, and based on the requirements of the vehicle lamp shape design, the light emitted from the end of the light guide assembly 110 is used to illuminate the light guide 120, thereby achieving a variety of lighting effects.

[0036] The present application provides a light source system, including a light source, a light guide component 110 and a light guide member 120, wherein the light source is arranged at one end of the light guide component 110, and the light guide member 120 is arranged at the other end of the light guide component 110; the light guide component 110 includes at least one light guide tube 111, and the light guide tube 111 is provided with corresponding light guide teeth and a first light guide light-emitting surface 112a; the light guide member 120 includes a reflecting portion 121 and a light emitting portion 122; light emitted by the light source enters the light guide component 110 from one end of the light guide component 110, a part of the light is reflected by the light guide teeth and then emitted from the first light guide light-emitting surface 112a, and another part of the light is emitted from the other end of the light guide component 110 and enters the light guide member 120, and then is reflected by the reflecting portion 121 of the light guide member 120 and then emitted from the light emitting portion 122. The optical system 100 obtained by the above design can reuse the stray light at the end of the light guide component 110 through the provision of the light guide 120, thereby improving the lighting uniformity, light utilization rate and optical efficiency of the optical system 100.

[0037] For example, the reflecting portion 121 includes at least one first reflecting surface 1211, the light emitting portion 122 is provided with a light emitting surface 1222, and a second reflecting surface 1221 is provided on the opposite side of the light emitting surface 1222. The light emitted from one end of the optical waveguide component 110 into the light guide member 120 can be reflected by at least one first reflecting surface 1211 and then emitted toward the second reflecting surface 1221, and then emitted from the light emitting surface 1222 after being reflected by the second reflecting surface 1221.

[0038] Specifically, the reflecting portion 121 includes at least one first reflecting surface 1211, which can change the optical path of the light; the light emitting portion 122 is provided with a light emitting surface 1222, and a corresponding second reflecting surface 1221 is provided on the opposite side of the light emitting surface 1222, and the light can be reflected by the second reflecting surface 1221 and then emitted from the light emitting surface 1222.

[0039] In one possible implementation of the present application, Figure 1 and Figure 3 As shown, the reflective portion 121 of the light guide 120 is provided with three first reflective surfaces 1211 in sequence, and the light emitted from one end of the light guide assembly 110 into the light guide 120 can be reflected by the three first reflective surfaces 1211 in sequence to change the direction of the light path and emit to the second reflective surface 1221 of the light emitting portion 122. The light is reflected by the second reflective surface 1221 again and finally emitted from the light emitting surface 1222 of the light emitting portion 122.

[0040] In another possible implementation of the present application, Figure 6As shown, the reflecting portion 121 of the light guide 120 is provided with a first reflecting surface 1211, and the light emitted into the light guide 120 from one end of the light component can change the light path through reflection by the first reflecting surface 1211 and emit to the second reflecting surface 1221 in the light emitting portion 122; the light is reflected again by the second reflecting surface 1221 and finally emitted from the light emitting surface 1222 of the light emitting portion 122.

[0041] It should be noted that the present application does not impose any restriction on the specific number of first reflective surfaces 1211 provided in the reflective portion 121 of the light guide 120, and the specific number and position of the first reflective surfaces 1211 may be further adjusted according to the actual structure and the requirements of the light emitting direction.

[0042] For example, Figure 5 As shown, an inclined surface 1111 is provided at the end of the light guide component 110 close to the light guide member 120, and the inclined surface 1111 is arranged toward the light incident surface of the light guide member 120. The light emitted by the light source enters the light guide component 110 from one end of the light guide component 110, and part of the light is reflected by the inclined surface 1111 and emitted from the other end of the light guide component 110 and enters the light guide member 120, and is reflected by the reflecting part 121 of the light guide member 120 and emitted from the light emitting part 122.

[0043] Specifically, in one possible implementation of the present application, Figure 5 As shown, the end of the light guide component 110 on one side close to the light guide member 120 is beveled to form an inclined surface 1111, and the light beam emitted by the light source enters the light guide component 110 from the end of the light guide component 110 on the side away from the inclined surface 1111, wherein a part of the light is reflected by the light guide tooth and then emitted from the light emitting surface 112a of the first light guide, and another part of the light is reflected by the inclined surface 1111 and then emitted from the other end of the light guide component 110; at this time, the light incident surface of the light guide member 120 is arranged opposite to the light emitting side of the inclined surface 1111, and the light reflected by the inclined surface 1111 can enter the light guide member 120, and is reflected by the reflecting portion 121 of the light guide member 120 and then emitted from the light emitting portion 122. This arrangement enables light to be reflected by the inclined surface 1111 at the end of the light guide component 110 before entering the light guide 120 , which can reduce the number of first reflective surfaces 1211 of the reflective portion 121 of the light guide 120 and further simplify the structure of the optical system 100 .

[0044] In another possible implementation of the present application, Figure 1 and Figure 2As shown, the end of the light guide component 110 close to the light guide member 120 is flush with the light incident surface of the light guide member 120, and the light emitted by the light source enters the light guide component 110 from one end of the light guide component 110, and part of the light is emitted through the other end of the light pipe 111 and directly enters the light guide member 120, and is reflected by the reflective portion 121 of the light guide member 120 and then emitted from the light emitting portion 122.

[0045] Specifically, Figure 1 and Figure 2 As shown, the end of the light guide component 110 close to the light guide member 120 is not provided with an inclined surface 1111. At this time, the light incident surface of the light guide member 120 is arranged opposite to the end of the light guide component 110 and is flush with the end of the light guide component 110; the light emitted by the light source enters the light guide component 110 from one end of the light guide component 110, wherein a part of the light is reflected by the light guide teeth and then emitted by the light emitting surface 112a of the first light guide, and the other part of the light is directly emitted into the light guide member 120 from the other end of the light guide component 110. Therefore, the reflecting portion 121 of the light guide member 120 should be provided with a first reflecting surface 1211 corresponding to the light emitting side of the light guide component 110 to facilitate the reflection of the light.

[0046] Optionally, see Figure 1 and Figure 2 The light guide 120 has a light incident surface, and the light guide assembly 110 has a second light guide emission surface 112b at one end portion facing the light guide 120, and the area of ​​the light incident surface is larger than the area of ​​the second light guide emission surface 112b.

[0047] Specifically, in order to improve the light utilization rate of the optical system 100 and enable the light guide 120 to receive more light emitted from one end of the light guide component 110, the area of ​​the light incident surface of the light guide 120 can be set to be larger than the area of ​​the second light guide light-emitting surface 112b of the light guide component 110, so as to ensure that as much light as possible emitted from the second light guide light-emitting surface 112b of the light guide component 110 can be injected into the light guide 120.

[0048] Optionally, the light emitting surface 1222 is a diffuse reflection surface, which can realize diffuse reflection of light, and the diffuse reflection surface includes convex points or stripes evenly distributed on the light emitting surface 1222 .

[0049] Specifically, the light emitting surface 1222 is a diffuse reflection surface, wherein the diffuse reflection surface includes convex points or stripes evenly distributed on the light emitting surface 1222 . Such a setting can make the light emitting of the light guide 120 more uniform.

[0050] In one possible implementation mode of the present application, a spherical head light guide column 113 is provided on the light emitting side of the optical waveguide component 110, and a condenser 123 is provided on the side of the light guide 120 facing the light emitting surface 1222 of the optical waveguide component 110, and the focus of the spherical head light guide column 113 coincides with the focus of the condenser 123.

[0051] Specifically, Figure 6 As shown, a spherical light guide column 113 is provided on the light emitting side of the light guide assembly 110, and correspondingly, a light concentrator 123 is convexly provided on the side of the light guide 120 facing the second light guide light emitting surface 112b of the light guide assembly 110, as shown in FIG. Figure 7 As shown, the focus of the ball-head light guide column 113 coincides with the focus of the condenser 123 so that as much light as possible can be injected into the condenser 123. The condenser 123 can collimate the light and converge the light on the light-emitting side of the optical waveguide component 110. By setting the ball-head light guide column 113 and the condenser 123, the light utilization rate of the optical system 100 can be further improved.

[0052] Furthermore, the condenser 123 may be a direct condenser or a reflective condenser. Specifically, the direct condenser allows the light to enter the light guide 120 directly after being collimated, while the reflective condenser allows the light to enter the light guide 120 after being collimated and then reflected at least once. The specific setting can be selected as needed.

[0053] In another aspect of the embodiment of the present application, a vehicle lamp is provided, comprising the above-mentioned optical system 100. The optical system 100 comprises a light guide assembly 110 and a light guide 120 disposed at the end of the light guide assembly 110. The light guide 120 is disposed at the end of the light guide assembly 110, so that light can be injected into the light guide 120 through the light pipe 111, thereby making good use of the light that originally formed the stray light, thereby improving the light utilization rate and optical efficiency. The above-mentioned vehicle lamp can reuse the stray light at the end of the light guide assembly 110 through the cooperation between the light guide assembly 110 and the light guide 120, thereby improving the lighting uniformity, light utilization rate and optical efficiency of the vehicle lamp, thereby reducing the setting of LEDs and circuit boards, and further reducing production costs. Among them, the specific structure and beneficial effects of the optical system 100 have been described in detail above, and will not be repeated here.

[0054] The above description is only an optional embodiment of the utility model and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

[0055] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present utility model will not further describe various possible combinations.

Claims

1. An optical system, characterized in that: The light guide assembly comprises a light source, a light guide component and a light guide member, wherein the light source is arranged at one end of the light guide component, and the light guide member is arranged at the other end of the light guide component; the light guide component comprises at least one light guide tube, and the light guide tube is provided with corresponding light guide teeth and a first light guide light-emitting surface; The light guide component includes a reflecting part and a light emitting part; the light emitted by the light source enters the light guide component from one end of the light guide component, a part of the light is reflected by the light guide teeth and then emitted from the light emitting surface of the first light guide, and another part of the light is emitted from the other end of the light guide component and enters the light guide component, and then emitted from the light emitting part after being reflected by the reflecting part of the light guide component.

2. The optical system according to claim 1, characterized in that The reflecting part includes at least one first reflecting surface, the light emitting part is provided with a light emitting surface, and a second reflecting surface is provided on the opposite side of the light emitting surface. The light emitted from one end of the optical waveguide component into the light guide member can be reflected by at least one of the first reflecting surfaces and then emitted toward the second reflecting surface, and then emitted from the light emitting surface after being reflected by the second reflecting surface.

3. The optical system according to claim 1, characterized in that An inclined surface is provided at the end of the light guide component close to one side of the light guide member, and the inclined surface is arranged toward the light incident surface of the light guide member. The light emitted by the light source enters the light guide component from one side end of the light guide component, and part of the light is reflected by the inclined surface and emitted from the other side end of the light guide component and enters the light guide member, and is reflected by the reflective part of the light guide member and emitted from the light emitting part.

4. The optical system according to claim 1, characterized in that The end of the light guide component close to one side of the light guide is flush with the light incident surface of the light guide component. The light emitted by the light source enters the light guide component from one side end of the light guide component, and part of the light is emitted through the other side end of the light pipe and directly enters the light guide component, and is reflected by the reflective part of the light guide component and then emitted from the light emitting part.

5. The optical system according to claim 1, characterized in that The light guide member has a light incident surface, and the light guide assembly has a second light guide emission surface at one end portion facing the light guide member. The area of ​​the light incident surface is larger than the area of ​​the second light guide emission surface.

6. The optical system according to claim 4 or 5, characterized in that: A spherical light guide column is provided on the light emitting side of the light guide component, a condenser is provided on the side of the light guide component facing the light emitting surface of the second light guide of the light guide component, and the focus of the spherical light guide column coincides with the focus of the condenser.

7. The optical system according to claim 6, characterized in that The concentrator is a direct concentrator or a reflective concentrator.

8. The optical system according to claim 2, characterized in that The light emitting surface is a diffuse reflection surface, which can realize diffuse reflection of light, and the diffuse reflection surface includes convex points evenly distributed on the light emitting surface.

9. The optical system according to claim 2, characterized in that The light emitting surface is a diffuse reflection surface, which can realize diffuse reflection of light, and the diffuse reflection surface includes stripes evenly distributed on the light emitting surface.

10. A vehicle lamp, characterized in that: An optical system comprising any one of claims 1 to 9.

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