Optical system and vehicle lamp

Abstract

The utility model provides an optical system and a car lamp, and relates to the technical field of car lamps, the optical system comprises a circuit board and a plurality of light-emitting units, each light-emitting unit comprises at least one light source and an optical element arranged on the light-emitting side of the light source, and light emitted by the light source is emitted after being transmitted by the optical element; light sources of the plurality of light emitting units are arranged on the circuit board, and the plurality of light emitting units at least comprise an automatic driving identification lamp unit so as to meet the requirement that an identification lamp needs to be turned on during automatic driving of a vehicle; different lighting requirements are achieved through different light-emitting units, light sources of the different light-emitting units are arranged on the same circuit board, compared with a traditional scheme that one lighting function module corresponds to one circuit board, multiple lighting functions are achieved through a single circuit board, the size and the function of an optical system are optimized, and the light-emitting efficiency is improved. The automobile lamp structure using the optical system is suitable for popularization and application of an automatic driving automobile due to the fact that the optical system comprises an automatic driving indication lamp (ADS).

Description

Technical Field

[0001] The present application relates to the technical field of vehicle lamps, and in particular to an optical system and a vehicle lamp. Background Art

[0002] With the development of automobile intelligence, the function of automatic driving has gradually become popular, so more and more cars have added ADS lights (automatic driving system identification lights) to facilitate people outside the car to identify that the vehicle is in automatic driving mode. However, this also brings certain disadvantages. After adding ADS lights, the structure of the car's headlights has become correspondingly complicated, and the size and cost of the headlights have increased accordingly. Utility Model Content

[0003] The purpose of the embodiments of the present application is to provide an optical system and a vehicle lamp, which can realize multifunctional lighting through integrated settings and optimize the structure and cost of the vehicle lamp.

[0004] According to one aspect of an embodiment of the present application, an optical system is provided, including a circuit board and a plurality of light-emitting units, each of the light-emitting units including at least one light source and an optical element arranged on the light-emitting side of the light source, the light emitted by the light source is transmitted by the optical element and then emitted; the light sources of the plurality of light-emitting units are all arranged on the circuit board, and the plurality of light-emitting units include at least an automatic driving identification light unit.

[0005] Optionally, the light source of the autonomous driving identification light unit includes a blue-green light source, and the optical element of the autonomous driving identification light unit includes a thick-walled concentrator.

[0006] Optionally, the thick-walled concentrator includes a direct concentrator, and the light emitted by the light source is emitted along a light emitting direction after passing through the direct concentrator.

[0007] Optionally, the thick-walled concentrator includes a first reflective concentrator, the incident end of the first reflective concentrator is a focusing cup and has a first reflecting surface, the light emitted by the light source is converged by the incident end and then enters the first reflective concentrator, and is reflected by the first reflecting surface and then emitted.

[0008] Optionally, the first reflecting surface is a plane, and an angle between the first reflecting surface and the light emitting direction is 45 degrees.

[0009] Optionally, the thick-walled concentrator includes a second reflective concentrator, the incident end of the second reflective concentrator is a curved surface and has a second reflecting surface, the light emitted by the light source is converged by the incident end and then incident on the second reflective concentrator, and is reflected by the second reflecting surface and then emitted.

[0010] Optionally, the thick-walled concentrator further includes an exit surface, which includes any one of a plane and a curved surface or has a pattern, and the light emitted by the light source is transmitted through the thick-walled concentrator and then emitted from the exit surface.

[0011] Optionally, the optical element includes a reflector, and the light emitted by the light source is reflected by the reflector and then emitted.

[0012] Optionally, the light-emitting unit further includes at least one of a daytime running light unit, a turn signal light unit, a brake light unit, and a position light unit.

[0013] Another aspect of the embodiments of the present application provides a vehicle lamp, comprising: the above-mentioned optical system.

[0014] The optical system and headlight provided in the embodiment of the present application include a light-emitting unit including at least one light source and an optical element, and the light emitted by the light source is emitted after being transmitted by the optical element; the light-emitting unit includes at least an automatic driving indicator light unit to meet the requirement that the vehicle must light up the indicator light during automatic driving; the light-emitting unit is used to issue corresponding signal light indications according to the driving requirements of the vehicle to meet the requirements of safe driving. Different light-emitting units realize different lighting requirements, and the light sources of different light-emitting units are arranged on the same circuit board. Compared with the traditional solution in which one lighting function module corresponds to one circuit board respectively, the present application realizes multiple lighting functions through a single circuit board, optimizes the volume and function of the optical system, and the structure and cost of the headlight using the optical system, and can also be suitable for the promotion and application of automatic driving vehicles due to the inclusion of automatic driving indicator lights (ADS). BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments of the present application will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 is a schematic diagram of the optical path of the optical system provided in the first embodiment of the present application;

[0017] Figure 2 It is one of the structural schematic diagrams of the optical system provided in the first embodiment of the present application;

[0018] Figure 3 This is the second structural schematic diagram of the optical system provided in the first embodiment of the present application;

[0019] Figure 4 is a schematic diagram of the optical path of the optical system provided in the second embodiment of the present application;

[0020] Figure 5 is a schematic structural diagram of an optical system provided in a second embodiment of the present application;

[0021] Figure 6 is a schematic diagram of the optical path of the optical system provided in the third embodiment of the present application;

[0022] Figure 7 is a schematic structural diagram of an optical system provided in the third embodiment of the present application;

[0023] Figure 8 is a schematic diagram of the optical path of the optical system provided in the fourth embodiment of the present application;

[0024] Fig. 9 It is a schematic diagram of the structure of the optical system provided in the fourth embodiment of the present application.

[0025] Icons: 10 - circuit board; 21 - light source; 22.1 - first reflective concentrator; 22.1a - first reflective surface; 22.2 - second reflective concentrator; 22.2a - second reflective surface; 22.3 - direct concentrator; 220 - incident end; 222 - exit surface; 23 - reflector; a - angle. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application.

[0027] In the description of this application, it should be noted that the terms "inside", "outside", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the application is usually placed when in use, which is only for the convenience of describing this application 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 this application. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0028] It should also be noted that, unless otherwise clearly specified and limited, the terms "disposed" and "connected" 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 direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0029] The embodiment of the present application provides an optical system, which can realize multiple lighting functions including the ADS function by a single circuit board 10; specifically, Figure 1As shown, the optical system includes: a circuit board 10 and a plurality of light-emitting units, each of which includes at least one light source 21 and an optical element arranged on the light-emitting side of the light source 21, and the light emitted by the light source 21 is emitted after being transmitted by the optical element; the light sources 21 of the plurality of light-emitting units are all arranged on the circuit board 10, and the plurality of light-emitting units include at least an automatic driving identification light unit.

[0030] A plurality of light sources 21 are disposed on the circuit board 10 , each light source 21 corresponds to an optical element, and the light emitted by the light source 21 is transmitted through the optical element before being emitted.

[0031] A group of corresponding light sources 21 and optical elements form a light-emitting unit. There are multiple light-emitting units, including at least an automatic driving identification light unit to meet the requirement that the vehicle must light up the identification light during automatic driving; in addition, the light-emitting unit can also include other commonly used signal light units, such as daytime running light units, turn signal light units, brake light units, position light units, etc. These signal light units are used to issue corresponding signal light indications according to the driving needs of the vehicle to meet the needs of safe driving.

[0032] Different light-emitting units realize different lighting requirements, and the light sources 21 of different light-emitting units are arranged on the same circuit board 10. Compared with the traditional solution in which one lighting function module corresponds to one circuit board, the present application realizes multiple lighting functions through a single circuit board 10, optimizes the volume and function of the optical system, and the structure and cost of the vehicle lamp using the optical system, and can also be suitable for the promotion and application of autonomous driving vehicles because it includes an automatic driving sign light (ADS).

[0033] Specifically, the light source 21 of the autonomous driving identification light unit is generally a blue-green light source to emit blue-green light; and the optical element of the autonomous driving identification light unit includes a thick-walled concentrator, which has a longer light channel. The light emitted by the light source 21 is transmitted through the light channel of the thick-walled concentrator to form a more uniform lighting effect with high light utilization rate.

[0034] Thick-walled concentrators generally include reflective concentrators and direct concentrators 22.3, wherein the reflective concentrator includes a first reflective concentrator 22.1 whose incident end 220 is a concentrator cup and a second reflective concentrator 22.2 whose incident end 220 is a curved or flat surface. The optical element of the autonomous driving identification light unit adopts a thick-walled concentrator, while the optical elements of other conventional light-emitting units may also adopt other conventional optical elements such as thick-walled concentrators or reflectors 23 according to needs.

[0035] Several embodiments are listed below for illustration. In one embodiment, referring to Figure 1 to Figure 3As shown, the optical system includes two light-emitting units, both of which use thick-walled concentrators, one of which is a first reflective concentrator 22.1 and the other is a second reflective concentrator 22.2.

[0036] The incident end 220 of the first reflective concentrator 22.1 is a focusing cup having a first reflective surface 22.1a. The light emitted by the light source 21 is focused by the focusing cup and then incident on the first reflective concentrator 22.1 and then reflected by the first reflective surface 22.1a and then emitted.

[0037] For example, the incident end 220 of the first reflective concentrator 22.1 is formed as a focusing cup, and the light emitted by the light source 21 is converted into parallel light or quasi-parallel light after being converged by the focusing cup and emitted to the first reflecting surface 22.1a, and the light forms a total reflection on the first reflecting surface 22.1a so that the transmission direction of the light is deflected, and is transmitted along the light emitting direction in the light channel of the first reflective concentrator 22.1 and emitted from the emitting surface 222. The emitting surface 222 can also be set as a plane, a curved surface or other surface shapes according to needs, or a pattern can be set on the emitting surface 222 to even out the light.

[0038] Furthermore, in the present application, the first reflective surface 22.1a can be a plane, and the angle a between the first reflective surface 22.1a and the light emitting direction is 45 degrees, or the angle a between the first reflective surface 22.1a and the light emitting direction can be set to other angles according to the required deflection direction. Of course, in the present application, the first reflective surface 22.1a can also be a curved surface so that the light can be totally reflected.

[0039] The incident end 220 of the second reflective concentrator 22.2 is a curved surface having a second reflective surface 22.2a. The light emitted by the light source 21 is converged by the curved surface and then incident on the second reflective concentrator 22.2 and then reflected by the second reflective surface 22.2a and then emitted.

[0040] For example, the incident end 220 of the second reflective concentrator 22.2 is formed as a curved surface, and the light emitted by the light source 21 is converted into parallel light or quasi-parallel light after being converged by the curved surface and emitted to the second reflective surface 22.2a, and the light forms a total reflection on the second reflective surface 22.2a so that the transmission direction of the light is deflected, and is transmitted along the light emitting direction in the light channel of the second reflective concentrator 22.2 and emitted from the emitting surface 222. The emitting surface 222 can also be set as a plane, a curved surface or other surface shapes according to needs, or a pattern can be set on the emitting surface 222 to even out the light.

[0041] Furthermore, in the present application, the second reflecting surface 22.2a can be a curved surface to further collimate the light and cause total reflection. Of course, the second reflecting surface 22.2a can also be a plane, and the angle a between the second reflecting surface 22.2a and the light emitting direction can be set according to the required deflection direction to cause total reflection of the light.

[0042] In another embodiment, Figure 4 , Figure 5 As shown, two first reflective concentrators 22.1 may also be used as optical elements to transmit and emit the light emitted by the light source 21, thereby realizing the ADS function and another signal light function.

[0043] Or, if Figure 6 , Figure 7 As shown, two direct-type concentrators 22.3 can be used as optical elements. After the light is converged by the incident end 220 of the direct-type concentrator 22.3, it is transmitted along the light-emitting direction and then emitted. There is no need to turn the light, which can be used for scene requirements of smaller space.

[0044] In addition, among the optical elements of the two light-emitting units, one adopts a thick-walled concentrator and the other adopts a conventional optical element, such as a reflector 23 .

[0045] For example, see Figure 8 , Fig. 9 The optical elements are a reflector 23 and a second reflective concentrator 22.2. The light emitted by the light source 21 corresponding to the reflector 23 is reflected by the reflector 23 and then emitted. The light emitted by the light source 21 corresponding to the second reflective concentrator 22.2 is transmitted by the second reflective concentrator 22.2 and then emitted.

[0046] The optical elements of the above-mentioned light-emitting unit can be matched with different types of thick-walled concentrators and conventional optical elements as needed according to lighting requirements. For details, please refer to the above-mentioned different combinations, but are not limited to the above-mentioned combinations. This application does not make specific limitations on this.

[0047] On this basis, the embodiment of the present application further discloses a vehicle lamp, comprising an optical system as described above. The vehicle lamp comprises the same structure and beneficial effects as the optical system in the aforementioned embodiment. The structure and beneficial effects of the optical system have been described in detail in the aforementioned embodiment, and will not be repeated here.

[0048] The above description is only an embodiment of the present application and is not intended to limit the protection scope of the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An optical system, characterized in that: include: A circuit board and a plurality of light-emitting units, each of which comprises at least one light source and an optical element disposed on the light-emitting side of the light source, and the light emitted by the light source is transmitted by the optical element and then emitted; The light sources of the multiple light-emitting units are all arranged on the circuit board, and the multiple light-emitting units include at least an automatic driving identification light unit.

2. The optical system according to claim 1, characterized in that The light source of the autonomous driving identification light unit includes a blue-green light source, and the optical element of the autonomous driving identification light unit includes a thick-walled concentrator.

3. The optical system according to claim 2, characterized in that The thick-walled concentrator comprises a direct concentrator, and the light emitted by the light source is emitted along the light emitting direction after passing through the direct concentrator.

4. The optical system according to claim 2, characterized in that The thick-walled concentrator comprises a first reflective concentrator, the incident end of the first reflective concentrator is a focusing cup and has a first reflecting surface, the light emitted by the light source is converged by the incident end and then enters the first reflective concentrator, and is reflected by the first reflecting surface and then emitted.

5. The optical system according to claim 4, characterized in that The first reflecting surface is a plane, and the angle between the first reflecting surface and the light emitting direction is 45 degrees.

6. The optical system according to claim 2, characterized in that The thick-walled concentrator includes a second reflective concentrator, the incident end of the second reflective concentrator is a curved surface and has a second reflecting surface. The light emitted by the light source is converged by the incident end and then incident on the second reflective concentrator, and then reflected by the second reflecting surface and emitted.

7. The optical system according to any one of claims 2 to 6, characterized in that: The thick-walled concentrator further includes an exit surface, which includes any one of a plane and a curved surface or has a pattern. The light emitted by the light source is transmitted through the thick-walled concentrator and then emitted from the exit surface.

8. The optical system according to any one of claims 1 to 6, characterized in that: The optical element comprises a reflector, and the light emitted by the light source is reflected by the reflector and then emitted.

9. The optical system according to any one of claims 1 to 6, characterized in that: The light emitting unit further includes at least one of a daytime running light unit, a turn signal light unit, a brake light unit, and a position light unit.

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

Images