CN115451373A

CN115451373A - Car light optical module, car light lighting device, car light and vehicle

Info

Publication number: CN115451373A
Application number: CN202110636189.3A
Authority: CN
Inventors: 李志兵; 祝贺; 仇智平; 桑文慧
Original assignee: HASCO Vision Technology Co Ltd
Current assignee: HASCO Vision Technology Co Ltd
Priority date: 2021-06-08
Filing date: 2021-06-08
Publication date: 2022-12-09

Abstract

The invention relates to a vehicle projection module, and discloses a vehicle lamp optical module, a vehicle lamp lighting device, a vehicle lamp and a vehicle, wherein the vehicle lamp optical module comprises a plurality of projection modules (1), a plurality of light sources (11) are arranged in the projection modules (1), and the light sources (11) comprise visible light sources and invisible light sources; a visible light source is arranged in one part of the projection module (1), a non-visible light source is arranged in the other part of the projection module (1), or the visible light source and the non-visible light source are arranged in the same projection module (1); the visible light source and the corresponding invisible light source project light rays in the same projection area. The optical module of the vehicle lamp projects the invisible light to the dark space, so that the camera can identify the visible light and the invisible light at the same time, the condition of the road surface can be effectively and timely identified, and the driving safety is ensured.

Description

Car light optical module, car light lighting device, car light and vehicle

Technical Field

The invention relates to a vehicle projection module, in particular to an optical module of a vehicle lamp. In addition, still relate to a car light lighting device, car light and vehicle.

Background

When a vehicle is traveling at night, a high beam is generally used to view the road surface ahead. When a vehicle is met, the high beam lamp of the opposite vehicle can generate great stimulation to the eyes of a driver, so that the driver is dazzled instantly, the observation capability of the driver to the surrounding environment is greatly reduced, the safe driving of the driver is not facilitated, and the safety of the driving at night is seriously influenced.

One solution to this end is to use matrix headlamps as the vehicle headlamp illumination technology. The matrix type headlamp is formed by combining and arranging a plurality of light sources to form a plurality of lighting areas correspondingly, all the lighting areas are mutually overlapped to form a lamp lighting light shape, various driving states are collected through a radar and a sensor in a vehicle, and then the intelligent system is used for controlling the on-off of each light source, so that the lighting areas corresponding to the opposite driving or pedestrians form dark areas, and the light shape can automatically adapt to the driving environment.

Present matrix headlight is when using, forms the illumination area of dark space and can prevent to make other road users such as the car or pedestrian that comes dazzling, but also can make the driver can't see other road users or barriers in the dark space simultaneously, to the illumination area who forms the dark space, the rate of identification of camera is low or discernment can not be arrived, at this moment, if dangerous or other influence driving's situation appears in the dark space, in time discovery is difficult, produce the incident easily, be unfavorable for driver safe driving.

In view of the above, a new optical module for a vehicle lamp is needed.

Disclosure of Invention

The invention aims to solve the technical problem of providing the car lamp optical module which projects invisible light to the dark area, so that the camera can identify the visible light and the invisible light simultaneously, the road condition can be effectively and timely identified, and the driving safety is ensured.

The present invention further provides a car light illumination device, which can adjust the light, so that each projection module synchronously rotates, the displacement is smaller, the space occupied by the car light illumination device in the car light is greatly reduced, and meanwhile, the camera can identify the situation of a complex road surface, thereby ensuring the driving safety.

The invention further aims to solve the technical problem of providing the vehicle lamp, wherein the camera module in the vehicle lamp can identify visible light and invisible light, so that the identification rate of the camera is improved, and the driving safety is ensured.

A further object of the present invention is to provide a vehicle having better driving safety.

In order to solve the technical problem, the invention provides an optical module of a car lamp, which comprises a plurality of projection modules, wherein a plurality of light sources are arranged in each projection module, and each light source comprises a visible light source and an invisible light source; the visible light source is arranged in one part of the projection modules, the invisible light source is arranged in the other part of the projection modules, or the visible light source and the invisible light source are arranged in the same projection module; the visible light source and the corresponding invisible light source project light rays in the same projection area.

Preferably, the projection module comprises the light source, a primary optical element and a lens, the primary optical element being arranged to be able to project light rays emitted by the light source towards the lens.

Further, the primary optical element comprises a plurality of light-gathering elements, each light-gathering element comprises a light-entering part, a light-passing part and a light-emitting part which are sequentially connected, and the light-emitting parts of the light-gathering elements are mutually connected or integrally formed into a light-emitting part; at least a pair of the light condensing elements are vertically arranged, and the light incoming parts of the light condensing elements are connected to the same light incoming part, wherein the optical axis of at least one light incoming part of the two light incoming parts and the optical axis of the light outgoing part form an included angle in the vertical direction, and the light incoming parts are inclined towards the light outgoing direction.

Specifically, an included angle between the optical axis of the light inlet portion and the optical axis of the light outlet portion in the vertical direction is less than or equal to 10 degrees.

Optionally, the projection module includes the light source and an optical element, the optical element includes a light-gathering portion, a light-guiding channel and a lens portion, which are integrally formed, and the light-gathering portion is arranged to be able to gather the light emitted from the light source and emit the light to the lens portion via the light-guiding channel.

Optionally, the projection module includes the light source and a lens, and the lens is arranged to converge the light emitted from the light source and emit the light to the projection area.

Specifically, the light emergent portion includes an upper boundary line and a lower boundary line, the upper boundary line is a curve with two sides drooping, and the lower boundary line is a curve with two sides rising.

Optionally, the visible light sources and the corresponding invisible light sources are turned on and off in a staggered manner.

The invention also discloses a car lamp lighting device, which comprises a dimming device and the car lamp optical module in any one of the technical schemes, wherein the projection modules are arranged on the dimming device so as to enable the projection modules to synchronously rotate under the action of the dimming device.

Preferably, the light adjusting device includes a bracket and a plurality of rotating arms, each of the rotating arms is parallel to each other and rotatably mounted on the bracket, and each of the projection modules is respectively mounted on the corresponding rotating arm so as to be capable of rotating under the action of the rotating arm.

Furthermore, the rotating arm comprises a driving column, a connecting piece and a rotating shaft, one end of the connecting piece is connected with the driving column, the other end of the connecting piece is connected with the rotating shaft, the rotating shaft is rotatably installed on the support so that the rotating arm can rotate around the rotating axis of the rotating shaft under the action of the driving column, and each projection module is respectively connected with the corresponding rotating shaft.

Optionally, each of the projection modules is connected to the corresponding connecting member through a module dimming mechanism, so as to be capable of dimming under the action of the module dimming mechanism.

Specifically, the module dimming mechanism comprises three ball nuts which are not on the same straight line and three ball screws which are matched with the ball nuts in a one-to-one correspondence mode.

The invention also discloses a car lamp, which comprises a camera module and the car lamp lighting device in any one of the technical schemes, wherein the camera module comprises a camera, and the camera can identify visible light and invisible light projected by the car lamp lighting device.

In addition, the invention also discloses a vehicle which comprises the vehicle lamp in the technical scheme.

Through the technical scheme, the invention has the following beneficial effects:

according to the invention, the invisible light is used for supplementing the dark area of the matrix type headlamp illumination, and the condition of the road surface is effectively and timely identified by simultaneously identifying the visible light and the invisible light, so that intelligent driving is realized; specifically, a visible light source and an invisible light source are arranged, so that the visible light source and the corresponding invisible light source can project light rays to the same projection area, in the night driving process, when the illumination of the illumination area corresponding to pedestrians or oncoming vehicles needs to be turned off, the visible light source can be turned off, the corresponding invisible light source can be turned on at the same time, the correspondingly turned-off illumination area is irradiated, the correspondingly turned-off illumination area is projected by using invisible light, the condition in the invisible light area is identified through a camera, the condition that danger or other conditions affecting driving can be prevented from possibly occurring, and the driving safety is ensured.

In addition, the projection module is arranged on the rotating arm of the dimming device and can rotate under the action of the rotating arm, the required swing space is very small, and the occupied space of the car lamp lighting device in the car lamp is greatly reduced.

Additional features and advantages of the invention will be set forth in the detailed description which follows.

Drawings

FIG. 1 is a schematic perspective view of a vehicular lamp lighting device according to an embodiment of the present invention;

FIG. 2 is a schematic diagram of the arrangement of light sources according to an embodiment of the present invention;

FIG. 3 is a schematic diagram of a projection module according to a first embodiment of the present invention;

FIG. 4 is one of the schematic structures of the primary optical element of the first embodiment of the present invention;

FIG. 5 is a second schematic diagram of the primary optical element according to the first embodiment of the present invention;

FIG. 6 is a schematic structural diagram of a projection module according to a second embodiment of the present invention;

FIG. 7 is a schematic diagram of a projection module according to a third embodiment of the present invention;

fig. 8 is a schematic structural diagram of a dimming device according to a fourth embodiment of the present invention;

fig. 9 is a second schematic structural diagram of a dimming device according to a fourth embodiment of the present invention;

FIG. 10 is one of the schematic structural views of a rotary arm according to an embodiment of the present invention;

FIG. 11 is a second schematic view of a rotary arm according to an embodiment of the present invention;

FIG. 12 is a third schematic view of a rotary arm according to an embodiment of the present invention;

FIG. 13 is a schematic structural view of a vehicular lamp according to a fifth embodiment of the present invention;

FIG. 14 is one of the schematic structural views of a vehicular lamp according to a sixth embodiment of the present invention;

FIG. 15 is a second schematic structural view of a vehicular lamp according to a sixth embodiment of the present invention;

fig. 16 is a partially enlarged view of a portion a in fig. 15;

fig. 17 is a schematic structural diagram of a dimming device according to a seventh embodiment of the present invention;

fig. 18 is a second schematic structural diagram of a light modulation device according to a seventh embodiment of the invention;

fig. 19 is a third schematic structural diagram of a light modulation device according to a seventh embodiment of the present invention;

FIG. 20 is a schematic light diagram of a matrix headlamp illumination area with visible light sources fully on, in accordance with an embodiment of the present invention;

fig. 21 is a second light pattern diagram of the matrix type headlight illumination areas according to the embodiment of the present invention, wherein the visible light sources corresponding to the two illumination areas are turned off, and the invisible light sources corresponding to the two illumination areas are turned on to form two invisible light areas;

FIG. 22 is a schematic view of a dimming mode of a vehicular lamp lighting device according to an embodiment of the present invention;

FIG. 23 is a schematic diagram of a dimming state of a projection module according to an embodiment of the present invention;

fig. 24 is a schematic diagram illustrating the optical path of the light-condensing element according to the first embodiment of the present invention.

Description of the reference numerals

1 projection module 11 light source

12 primary optical element 121 goes into light portion

122 light-passing part 123 light-emitting part

124 front end gap 13 lens

141 light-gathering part 142 light guide channel

143 lens part 2 light modulation device

21 cradle 22 drive column

23 connecting piece 24 rotating shaft

25 rotation axis 31 ball nut

32 ball screw 4 camera module

50 upper end guide post of driving part 51

52 lower end guide post 53 kidney-shaped hole

a illumination area b invisible light area

Detailed Description

The following describes in detail embodiments of the present invention with reference to the drawings. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation.

In the description of the present invention, it should be noted that, unless otherwise explicitly stated or limited, the terms "mounted," "disposed," and "connected" are to be construed broadly, and may be, for example, a fixed connection, a detachable connection, or an integral connection; either directly or indirectly through intervening media, either internally or in any combination thereof. The specific meanings of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.

First, for convenience of understanding, as shown in fig. 4, based on the primary optical element itself, the end of the light emitting portion 123 is "front" along the light emitting direction, the end of the light entering portion 121 is "rear", the left side along the light emitting direction is "left", the right side along the light emitting direction is "right", the upper side along the light emitting direction is "up", and the lower side along the light emitting direction is "down", that is, "up", "down", "left", "right", "front", "rear" in the present invention are consistent with the up, down, left, right, and front and rear directions of the lamp after the lamp is mounted on the vehicle.

As shown in fig. 1 to 7, the optical module for a vehicle lamp according to the basic embodiment of the present invention includes a plurality of projection modules 1, wherein a plurality of light sources 11 are disposed in the projection modules 1, and the light sources 11 include a visible light source and a non-visible light source; a visible light source is arranged in one part of the projection module 1, and an invisible light source is arranged in the other part of the projection module 1, or the visible light source and the invisible light source are arranged in the same projection module 1; the visible light source and the corresponding invisible light source project light rays in the same projection area.

The projection area refers to an illumination area a corresponding to the visible light source when the visible light source is turned on, or a non-visible light area b corresponding to the non-visible light source when the non-visible light source is turned on. The plurality of visible light sources can project visible light rays to form a plurality of illumination areas a, the plurality of invisible light sources can project invisible light rays to form invisible light areas b which correspond to the plurality of illumination areas a one by one, and the invisible light areas b can cover the illumination areas a; that is to say, the visible light sources and the corresponding invisible light sources are turned on and off in a staggered manner, where the staggered turning on and off means that when the visible light sources are turned off, the corresponding invisible light sources are turned on, and when the invisible light sources are turned off, the corresponding visible light sources are turned on. When the visible light source is closed to form a dark area, the invisible light source can irradiate the dark area to form an invisible light area b, so that dazzling of pedestrians or drivers of opposite vehicles can be avoided, the invisible light can be identified through the camera, the road condition can be identified, possible dangers or other driving influence conditions can be prevented, and the identification rate of the camera is improved. In order to realize the left-right arrangement of the plurality of illumination areas a and the plurality of invisible light areas b, the plurality of light sources 11 are arranged in the left-right direction of the vehicle lamp. Generally, the light source used by the visible light source may be an LED light source or other suitable light source, which emits white light for illumination, and the light source used by the invisible light source may be an infrared light source, such as a laser infrared light source, which emits infrared light; correspondingly, the camera can be the camera that can discern visible light and invisible light simultaneously, discerns visible light and invisible light respectively.

Fig. 2 discloses an embodiment in which the visible light source and the corresponding invisible light source are disposed in the same projection module 1, and of course, the visible light projection light source and the corresponding invisible light source may also be disposed in different projection modules 1 as long as the visible light source and the corresponding invisible light source can project light rays to the same projection area.

The projection module 1 has various structural forms, fig. 3 shows a specific structural form of the projection module 1, the projection module 1 comprises a light source 11, a primary optical element 12 and a lens 13, the light source 11, the primary optical element 12 and the lens 13 are arranged in sequence from back to front, light emitted by the light source 11 is incident on the primary optical element 12, the primary optical element 12 projects the light to the lens 13, and an illumination area a and/or an invisible light area b is formed after the light is emitted from the lens 13.

Further, the primary optical element 12 includes a plurality of light condensing elements, wherein at least one pair of light condensing elements share one light transmitting portion 122, the light emitting surfaces of both light condensing elements are also formed as one light emitting portion 123, the light emitting portion 123 is disposed at the front end of the light transmitting portion 122, the light incident portions 121 of the two light condensing elements are vertically arranged at the rear end of the light transmitting portion 122, so that light can be emitted into one light transmitting portion 122 from the two light incident portions 121 and then emitted through one light emitting portion 123, compared with the conventional arrangement mode of one light incident portion, the light intensity of the emitted light pattern can be enhanced because light is incident from the two light incident portions 121 together, wherein the vertical arrangement of the light incident portions 121 of the two light condensing elements does not refer to a strict vertical relative position relationship, and there may be a certain deviation in the left-right direction as long as the light intensity of the emitted light pattern can be enhanced as a whole, further, one or two of the two light incident portions 121 are rotated by a certain angle around the rotating axis toward the light emitting direction, that the light incident portions and the light incident portions 121 and the light incident portions and the light emitting portions are not intersected with the light emitting axis, and the light emitting portions are not necessarily a horizontal direction, and the light source can be collected light source, and the light source can be more light source can be collected in the same direction, and the light source is a horizontal direction is understood as a horizontal direction is a horizontal direction, and the light source is formed by the light source is more light source. In addition, when the optical axes of the two light incident portions 121 and the light emergent portion 123 form an included angle in the vertical direction, the included angles do not need to be exactly equal, and there may be a certain deviation, for example, one included angle is 2 °, another included angle is 3 °, and preferably, the included angles are equal. For convenience of description, the optical structure formed by two light-gathering elements arranged in a vertical manner is named as a light-gathering mechanism, and it should be understood that the number of the light-gathering elements may be more, for example, when the primary optical element 12 is formed by three light-gathering elements, that is, when one light-gathering element is installed on the left side or the right side of the light-gathering mechanism, the light-emitting surfaces of the three light-gathering elements are connected or formed as the light-emitting portion 123; when the primary optical element 12 is composed of four light-gathering elements, two light-gathering elements may be connected to the left and right sides of the light-gathering mechanism, or two light-gathering mechanisms may be connected to each other, or two light-gathering elements may be arranged in a row in the left and right directions, and then two light-gathering elements arranged in a row are connected to the left or right side of the light-gathering mechanism, and light-emitting surfaces of the four light-gathering elements are connected to or formed as the light-emitting portion 123; when the primary optical element 12 is composed of five light-condensing elements, the structural forms of various vehicle lamp optical elements can be analogized, the light-emitting surfaces of the five light-condensing elements are connected or formed as the light-emitting portion 123, fig. 5 shows the structural form of the primary optical element 12 composed of five light-condensing elements, and the structural form of the primary optical element 12 is formed by sequentially connecting one light-condensing element, one light-condensing mechanism and two light-condensing elements arranged in a row in the left-right direction; when the primary optical element 12 is composed of more light-condensing elements, more structural forms of the primary optical element 12 can be inferred, and the description is omitted; the structural form that the two light condensing elements are arranged up and down enables the primary optical element 12 to intensively emit the light of the two light sources to form an illumination area a with higher illumination intensity, that is, aiming at the position where the illumination intensity of the emergent light shape needs to be improved, the light can be intensively irradiated on the position to form the emergent light shape with high local or even whole illumination intensity. The light-condensing element may be a collimator or a focusing lens, etc., for guiding, collimating and adjusting the light shape of the light emitted from the light source 11. The concept that the optical axis of the light-emitting portion 123 is parallel to the longitudinal axis corresponding to the zero point of the light shape of the vehicle lamp, i.e., the longitudinal axis passing through the focal point of the lens 13 when the primary optical element 12 and the lens 13 are used in combination, the zero point is the intersection point of the H axis and the V axis on the light distribution screen, and is well known to those skilled in the art.

As a specific embodiment, an included angle range between an optical axis of the light incident portion 121 and an optical axis of the light exiting portion 123 in a vertical direction is less than or equal to 10 °. As such, referring to fig. 24, the light incident portions 121 of the two light condensing elements arranged vertically can better collect the light emitted by the light sources 11, so that the light emitted by the two light sources 11 can be concentrated in the light transmission portion 122 and emitted through the light emitting portion 123; if the included angle is set too large, the light collected by the light incident portion 121 is reduced, which may affect the concentration of the light into the light passing portion 122, and further affect the illumination intensity of the local or whole position of the emergent light shape.

Referring to fig. 4, the size of the gap between adjacent light-passing portions 122 is gradually reduced along the light-emitting direction, and the gap is formed as a wedge-shaped gap with a smaller front end gap 124 and a larger rear end gap, and the size of the front end gap 124 is less than or equal to 0.5mm. In this way, the illumination areas a or the invisible light areas b correspondingly formed by the light sources 11 are better connected, so that the finally formed emergent light shape is more uniform, and it can be understood that the larger the front end gap 124 is, the worse the connection between the illumination areas a or the invisible light areas b correspondingly formed by the light sources is, and the worse the uniformity of the finally formed emergent light shape is. Further, a connecting rib may be provided between adjacent light-passing portions 122 at the rear end, enhancing the stability of the primary optical element, and also facilitating positioning during assembly.

Further, the distance between the end of the tip clearance 124 and the light exit portion 123 is in the range of 1mm to 3 mm. That is to say, the front end of each light-transmitting portion 122 forms a fused section, the front end surface of the fused section is the light-emitting portion 123, the fused section is convenient for fusing the light of each light-transmitting portion 122 and then emitting the light from the light-emitting portion 123, the connection uniformity of the illumination area a or the invisible light area b correspondingly formed by each light source 11 can be further improved, and further, the uniformity of the finally formed emergent light shape is improved, it should be noted that the light fusion means that the light rays with different angles are intersected and mixed to form a certain superposed area, which is embodied in the light shape, that is, the superposed area with a certain angle is formed between the illumination area a or the invisible light area b correspondingly formed by each light source 11; further, due to limitations in manufacturing processes, the front end of each light-passing portion 122, i.e., the position between the end of each front-end gap 124 and the light-exiting portion 123, also has a certain structural thickness, which facilitates manufacturing and assembly.

Referring to fig. 4, the light emergent portion 123 includes an upper boundary line and a lower boundary line, the upper boundary line is a curve with two sides drooping, and the lower boundary line is a curve with two sides rising. It should be noted that, when the primary optical element 12 is used in combination with a short-focal-length lens, the edge of the outgoing light shape formed by the outgoing light part 123 is more uniform and smoother than the boundary line between the two sides, which is flat or curved in the opposite direction.

Fig. 6 shows another specific structure of the projection module 1, where the projection module 1 includes a light source 11 and an optical element, the optical element is an integrated structure and includes a light-gathering portion 141, a light-guiding channel 142 and a lens portion 143, the light-gathering portion 141 is formed in a plurality, and is arranged in one-to-one correspondence with the light source 11 to gather light emitted from the light source 11, the light is emitted to the lens portion 143 through the light-guiding channel 142, and then is emitted from the lens portion 143 to form an illumination area a or an invisible light area b.

Fig. 7 also shows a specific structure form of the projection module 1, the projection module 1 comprises a light source 11 and a lens 13, light emitted by the light source 11 is directly emitted to the lens 13, and is emitted by the lens 13 to form an illumination area a or an invisible light area b.

The above describes various structural forms of the projection module 1, and similarly, the light source 11 is divided into a visible light source and an invisible light source, which may be LED light sources or laser light sources, and the projection module 1 can project visible light or invisible light separately, so that the two corresponding projection modules 1 can project white light and infrared light respectively, and can project white light and infrared light in the same projection area; or, the visible light source and the invisible light source are arranged in the same projection module 1, so that one part of the light sources 11 are LED light sources, the other part of the light sources 11 are infrared laser light sources, and the white light and the infrared light can be emitted from the same projection module 1 and can be projected in the same projection area. When the LED light source corresponding to a certain lighting area is turned off, no white light is projected to the lighting area a to form a dark area, the corresponding infrared laser light source can emit infrared rays to the dark area to form an invisible light area b, and the infrared rays reflected by other road users or obstacles in the invisible light area b are identified by the camera of the vehicle, so that the possible danger or other conditions influencing driving are avoided, and the driving safety is ensured.

Referring to fig. 8 to 12, the optical module of the vehicle lamp of the present invention is combined with the light modulation device 2 to form a vehicle lamp lighting device, the projection modules 1 are mounted on the light modulation device 2, and under the action of the light modulation device 2, the projection modules 1 can be driven to modulate light synchronously, so that the displacement of the projection modules 1 is smaller, and the space occupied by the vehicle lamp lighting device in the vehicle lamp is greatly reduced.

The dimming device comprises a support 21 and a plurality of rotating arms, wherein the rotating arms are arranged on the support 21 in parallel and can rotate relative to the support 21, the projection modules 1 are respectively installed on the corresponding rotating arms, and under the action of the rotating arms, in the arrangement position of the vehicle lamp lighting device shown in fig. 8, the projection modules 1 can rotate in the vertical direction, so that the illumination areas a and the invisible light areas b synchronously move up and down in the V-axis direction, or, in the arrangement position of the vehicle lamp lighting device shown in fig. 1 and 13, the projection modules 1 can rotate in the left-right direction, so that the illumination areas and the invisible light areas synchronously move left and right in the H-axis direction, and the positions of the illumination areas a and the invisible light areas b are adjusted to the theoretical design position. With the prior art lamp lighting device of the vehicle shown in fig. 22, nine projection modules 1 are arranged in a row from top to bottom on the bracket 21, and when the bracket 21 is rotated by a small angle, such as 5 °, around the rotation axis 25, a large swing occurs at the other end of the bracket 21, which results in a large space inside the vehicle lamp to achieve the dimming of the assembly, resulting in a waste of the space inside the vehicle lamp and an excessive volume of the vehicle lamp. However, referring to fig. 23, the bracket 21 of the vehicle lamp lighting device of the present invention does not generate displacement, and the projection modules 1 rotate synchronously, so that the displacement is smaller, and the space occupied by the vehicle lamp lighting device in the vehicle lamp is greatly reduced. Compared with the prior art vehicle lamp lighting device shown in fig. 22, the vehicle lamp lighting device provided by the invention has the advantages that the rotating mechanism is arranged on each projection module 1, the space between the projection modules 1 is smaller, and the occupied space of the vehicle lamp lighting device in the vehicle lamp is also greatly reduced.

Further, referring to fig. 9 to 12, the pivot arm includes a driving post 22, a connecting member 23, and a rotation shaft 24, one end of the connecting member 23 is connected to the driving post 22, the other end of the connecting member 23 is connected to the rotation shaft 24, the rotation shaft 24 is mounted on the support 21, the rotation shaft 24 is rotatable with respect to the support 21, the pivot arm as a whole is rotatable around an axis of the rotation shaft 24 by the driving of the driving post 22, each projection module 1 is connected to the corresponding rotation shaft 24, and each projection module 1 and each pivot arm have the same arrangement form and are rotatable with the rotation shaft 24; specifically, referring to fig. 10, when the driving column 22 moves upward from the initial position (the middle position shown in fig. 10) to the set position, the rotating arm rotates clockwise around the axis line of the rotating shaft 24, the light emitting direction of the projection module 1 mounted on the rotating arm swings in one direction, and the corresponding illumination area a and the invisible light area b also move in the same direction; when the driving column 22 moves downward from the initial state to the set position, the rotating arm rotates in the counterclockwise direction around the axis of the rotating shaft 24, the light emitting direction of the projection module 1 mounted on the rotating arm swings in the opposite direction to the direction corresponding to the clockwise rotation of the rotating arm, and the corresponding illumination area a and the invisible light area b also move in the opposite direction to the direction corresponding to the clockwise rotation of the rotating arm. Therefore, by driving the movement of the driving column 22, the illumination area a and the invisible light area b formed by the respective projection modules 1 can be made movable on the road surface. Moreover, referring to fig. 10 in combination with fig. 23, after the rotating arm rotates around the rotating shaft 24, each projection module 1 rotates around the respective rotating shaft 25 from the initial position shown by the solid line to the dimmed position shown by the dotted line, each projection module 1 swings slightly, the bracket 21 does not displace, the displacement of the projection module 1 is smaller, and the occupied space of the vehicle lamp lighting device in the vehicle lamp is greatly reduced; the distance between the projection modules 1 is smaller, and the occupied space of the car lamp lighting device in the car lamp is also greatly reduced.

Generally, referring to fig. 9, the lamp lighting device of the present invention further includes a driving portion 50. The driving part 50 has an outer shape corresponding to the arrangement state of the projection modules 1. The driving part 50 is provided at both ends thereof with an upper end guide post 51 and a lower end guide post 52, respectively, the axes of the upper end guide post 51 and the lower end guide post 52 are parallel to each other, and the driving part 50 is mounted on the bracket 21 by the upper end guide post 51 and the lower end guide post 52 and can move up and down with respect to the bracket 21. The driving portion 50 is provided with a plurality of kidney-shaped holes 53, and the plurality of driving columns 22 are respectively installed in the plurality of kidney-shaped holes 53. As shown in fig. 9, when the driving portion 50 moves in a vertically downward direction, the driving posts 22 installed in the slotted holes 53 are simultaneously driven to move downward, the rotating shafts 24 synchronously rotate in a counterclockwise direction, and drive the projection modules 1 to correspondingly rotate counterclockwise, and the illumination area and the invisible light area formed by the projection modules 1 synchronously move upward in the V-axis direction, so that the light shape formed by the vehicle lamp illumination device of the present invention is raised in the V-axis direction. When the driving part 50 moves in the vertical upward direction, the driving columns 22 installed in the kidney-shaped holes 53 are simultaneously driven to move upward, the rotating shafts 24 synchronously rotate in the clockwise direction, and drive the projection modules 1 to correspondingly rotate clockwise, and the illumination area a and the invisible light area b formed by the projection modules 1 synchronously move downward in the V-axis direction, so that the light shape formed by the vehicle lamp illumination device of the invention is reduced in the V-axis direction. The slotted hole 53 is arranged so that the driving column 22 can slide left and right in the slotted hole 53 while moving up and down in the slotted hole 53 to adapt to the rotating motion track of the driving column 22.

Further, a drive mechanism is usually provided, and the drive mechanism is connected to the drive unit 50 via a link. The connecting rod can be fixedly connected, hinged or ball-jointed with the driving mechanism and the driving part 50. When the driving mechanism moves up and down in the vertical direction, the connecting rod can be driven to move up and down, and the driving portion 50 is driven to move up and down through the connecting rod. When the connection mode is hinge connection or ball joint connection, the transmission device can also reduce connection stress caused by the fact that the motion track of the driving mechanism is not parallel to the motion track of the driving part 50, so that the synchronous motion of the driving mechanism and the driving part 50 is smoother and smoother. In particular, the drive mechanism may be an electric drive mechanism and/or a manual drive mechanism. The electric driving mechanism can adopt an electric cylinder driving mode, and a telescopic rod of the electric cylinder is connected with the connecting rod; or a screw driving mode of a speed reducing motor can be adopted, and a sliding block on the screw is connected with the connecting rod. The manual driving mechanism may be connected to the electric cylinder or the sliding block through a screw structure, and when the manual driving mechanism is rotated, the screw structure drives the electric cylinder or the sliding block to move, so as to drive the connecting rod to drive the driving portion 50 to move up and down. The structure can adopt the manual driving mechanism to drive the projection module 1 to rotate to realize dimming when the electric driving mechanism is closed or fails.

Referring to fig. 11 and 12, a module light control mechanism may be provided between each projection module 1 and the corresponding connector 23 so that the projection module 1 can be rotated up, down, left, and right by the module light control mechanism. Specifically, the module dimming mechanism includes three ball nuts 31 and three ball screws 32, each ball nut 31 is matched with each ball screw 32 one by one, the projection module 1 is connected with the corresponding connecting member 23 through the ball nuts 31 and the ball screws 32, and the three ball nuts 31 are not on the same straight line. When an external tool is used for driving one ball screw rod on the right side in the fig. 12 to rotate, the projection module 1 can rotate around the connecting line of the spherical centers of the other two ball screw rods, so that the left-right dimming of the projection module 1 is realized; when an external tool is used to drive one ball-head screw located at the lower part in fig. 12 to rotate, the projection module 1 can rotate around the connecting line of the spherical centers of the other two ball-head screws, so as to realize the up-and-down dimming of the projection module 1; the arrangement of the module dimming mechanism enables each projection module 1 to realize individual dimming so as to adjust the relative positions of the illumination area a and the invisible light area b generated by each projection module 1, so that the illumination areas a of each projection module 1 are combined into an ideal light shape, and the invisible light areas b are in one-to-one correspondence with the illumination areas a and can cover the corresponding illumination areas a.

Referring to fig. 13 to 16, the vehicular lamp lighting device of the present invention may be applied to a vehicular lamp, such as a headlamp; fig. 13 shows a specific structure form of the car light lighting device applied to the car light, wherein, in order to adapt to the shape of the car light, the car light lighting device is installed in the car light along the left and right directions, and controls each projection module 1, when a pedestrian or an oncoming vehicle appears in front of the vehicle, the projection module 1 corresponding to the lighting area is turned off to form a dark area, and simultaneously the projection module 1 corresponding to the non-visible area b is turned on, and emits infrared rays to the non-visible area b covering the lighting area a forming the dark area, and the infrared rays are identified by using the camera of the vehicle, and other road users or obstacles appearing in the non-visible area are discovered in time, so as to avoid possible danger or other driving-affecting conditions. Fig. 14 and 15 show another specific structure form of the car light lighting device applied to the car light, which is different from the embodiment shown in fig. 13, in that a camera module 4 is arranged in the car light, the camera module 4 includes a camera and a mounting bracket, the camera is preferably mounted on the light modulation device 2 through the mounting bracket, specifically, referring to fig. 17 to 19, the camera is connected with a rotating shaft 24 of a corresponding rotating arm, can rotate around a rotating shaft 25 of the rotating shaft 24 under the action of a driving column 22, and can rotate synchronously with all the projection modules 1, and can identify the road surface conditions of the illumination area and the invisible light area formed by all the projection modules 1. Or, the camera may be separately fixed and not mounted on the light adjusting device 2, and since the swing range of the projection module 1 is small, the recognition range of the camera is increased, so that the camera does not need to move along with the movement of the projection module 1, as long as the recognition range of the camera can cover all the illumination areas and the invisible light areas.

In order to facilitate understanding of the technical idea of the present invention, a relatively comprehensive structural form of preferred technical features is described below.

As shown in fig. 13 to 19, a vehicle lamp according to a preferred embodiment of the present invention includes a camera module 4 and a vehicle lamp lighting device, the vehicle lamp lighting device includes a vehicle lamp optical module and a dimming device 2, the vehicle lamp optical module includes a plurality of projection modules 1, a light source 11 is disposed in the projection modules 1, the light source 11 is divided into a visible light source and an invisible light source, the visible light source and the invisible light source can be disposed in the same projection module 1, or the visible light source and the corresponding invisible light source are disposed in different projection modules 1, respectively; the light control device 2 includes a support 21 and a plurality of rotating arms, each rotating arm is mounted on the support 21 in parallel, each rotating arm is composed of a driving column 22, a connecting piece 23 and a rotating shaft 24, one end of the connecting piece 23 is connected with the driving column 22, the other end of the connecting piece 23 is connected with the rotating shaft 24, the rotating shaft 24 is connected with the support 21 and can rotate relative to the support 21, and each projection module 1 and each camera module 4 are connected with the corresponding rotating shaft 24.

In the use of the matrix-type headlamp, in combination with an ADAS (Advanced Driving Assistance System) System, referring to fig. 20 and 21, when an obstacle or other target object such as other road user appears in front of the vehicle, the corresponding visible light source is turned off to form a dark region in the corresponding illumination area a, so as to avoid dazzling of other road users, and the corresponding invisible light source is turned on to project invisible light to the invisible light area b corresponding to the illumination area a forming the dark region, so that the ADAS System controls the camera of the camera module 4 to identify the visible light and the invisible light, thereby effectively identifying the condition of the road surface in time, so that the driver can see the obstacle or other road users in front of the road surface in time, and simultaneously, no dazzling of other road users is caused, so as to achieve intelligent Driving, and avoid possible danger or other conditions affecting Driving. The projection range of the invisible light is larger than or equal to the illumination range of the visible white light, the correspondence between the invisible light area b and the matrix type headlamp illumination area a enables the dark area of the matrix type headlamp to be effectively supplemented by the invisible light, the influence on the recognition rate of a camera is avoided, the invisible light source can be selectively lightened, the invisible light area b and the illumination area a of the matrix type headlamp are strictly complemented, the utilization rate of the invisible light source is improved, and the waste of power and energy is avoided. Moreover, under the action of the dimming device 2, the projection module 1 and the camera module 4 can synchronously rotate, the required swing space is small, and the space inside the vehicle lamp is saved.

The embodiment of the vehicle of the invention can have the lamp described in the above embodiment, that is, all technical solutions of all embodiments of the lamp are adopted, so that the invention at least has the beneficial effects brought by all technical solutions of all embodiments of the lamp.

The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings, but the present invention is not limited thereto. Within the scope of the technical idea of the invention, numerous simple modifications can be made to the technical solution of the invention, including combinations of the individual specific technical features in any suitable way. The invention is not described in detail in order to avoid unnecessary repetition. Such simple modifications and combinations should also be considered as disclosed in the present invention, and all such modifications and combinations are intended to be included within the scope of the present invention.

Claims

1. The car light optical module is characterized by comprising a plurality of projection modules (1), wherein a plurality of light sources (11) are arranged in the projection modules (1), and the light sources (11) comprise visible light sources and invisible light sources; the visible light source is arranged in one part of the projection module (1), the invisible light source is arranged in the other part of the projection module (1), or the visible light source and the invisible light source are arranged in the same projection module (1); the visible light source and the corresponding invisible light source project light rays in the same projection area.

2. Vehicle lamp optical module according to claim 1, characterized in that the projection module (1) comprises the light source (11), a primary optical element (12) and a lens (13), the primary optical element (12) being arranged so as to be able to project the light emitted by the light source (11) towards the lens (13).

3. The automotive light optical module according to claim 2, characterized in that the primary optical element (12) comprises a plurality of light-gathering elements, the light-gathering elements comprise a light-entering part (121), a light-passing part (122) and a light-exiting part which are connected in sequence, and the light-exiting parts of the light-gathering elements are connected with each other or integrally formed into a light-exiting part (123); at least one pair of the light condensing elements are vertically arranged, and the light incoming parts (121) of the light condensing elements are connected to the same light passing part (122), wherein the optical axis of at least one light incoming part (121) of the two light incoming parts (121) and the optical axis of the light outgoing part (123) form a vertical included angle, and the light incoming parts (121) incline towards the light outgoing direction.

4. An optical module for a vehicular lamp according to claim 3, wherein an angle between an optical axis of the light incident portion (121) and an optical axis of the light exit portion (123) in a vertical direction is less than or equal to 10 °.

5. The vehicle lamp optical module according to claim 1, wherein the projection module (1) comprises the light source (11) and an optical element, the optical element comprises an integrated light-gathering portion (141), a light-guiding channel (142) and a lens portion (143), and the light-gathering portion (141) is arranged to gather the light emitted from the light source (11) and direct the light to the lens portion (143) via the light-guiding channel (142).

6. Vehicle lamp optical module according to claim 1, characterized in that said projection module (1) comprises said light source (11) and a lens (13), said lens (13) being arranged so as to be able to converge the light rays emitted by said light source (11) and exit to said projection area.

7. The vehicle lamp optical module according to claim 3 or 4, wherein the light exit portion (123) includes an upper boundary line and a lower boundary line, the upper boundary line is a curve with two sides drooping, and the lower boundary line is a curve with two sides rising.

8. The vehicle lamp optical module according to any one of claims 1 to 6, wherein the visible light sources and the corresponding invisible light sources are turned on and off alternately.

9. A vehicle lamp lighting device, characterized by comprising a dimming device (2) and a vehicle lamp optical module according to any one of claims 1 to 8, wherein the projection modules (1) are mounted on the dimming device (2) so as to be able to rotate the projection modules (1) synchronously under the action of the dimming device (2).

10. The vehicular lamp lighting device according to claim 9, wherein the light adjusting device (2) comprises a bracket (21) and a plurality of rotating arms, each rotating arm being parallel to each other and rotatably mounted on the bracket (21), and each projection module (1) being respectively mounted on the corresponding rotating arm so as to be rotatable under the action of the rotating arm.

11. A vehicle lamp lighting device according to claim 10, wherein the rotating arm comprises a driving column (22), a connecting member (23) and a rotating shaft (24), one end of the connecting member (23) is connected with the driving column (22), the other end of the connecting member is connected with the rotating shaft (24), the rotating shaft (24) is rotatably mounted on the bracket (21) so as to enable the rotating arm to rotate around a rotating axis (25) of the rotating shaft (24) under the action of the driving column (22), and each projection module (1) is connected with the corresponding rotating shaft (24).

12. The vehicular lamp illumination device according to claim 11, wherein each of the projection modules (1) is connected to the corresponding connecting member (23) through a module dimming mechanism, so as to be dimmable by the module dimming mechanism.

13. The vehicular lamp lighting device according to claim 12, wherein the module dimming mechanism comprises three ball nuts (31) which are not on the same line and three ball screws (32) which are engaged with the ball nuts (31) in a one-to-one correspondence.

14. Vehicle light, characterized in that it comprises a camera module (4) and a vehicle light lighting device according to any one of claims 9 to 13, said camera module (4) comprising a camera able to recognize the visible light and the invisible light projected by said vehicle light lighting device.

15. A vehicle characterized by comprising the lamp according to claim 14.