CN111750332B - Variable lighting device and automobile lamp - Google Patents

Abstract

The invention discloses a variable lighting device, comprising: the light source module is used for emitting light rays; the light interception plate comprises a light interception surface, the light interception surface is used for blocking part of light rays emitted by the light source module, and the ratio of the light interception plate for blocking the light rays emitted by the light source module is defined as light interception quantity; the light interception quantity of the light interception plate can be changed and controlled; wherein the variable illumination device is used for low beam illumination when the amount of the cutoff light is greater than or equal to a first predetermined value, and for high beam illumination when the amount of the cutoff light is less than a second predetermined value, the first predetermined value being greater than the second predetermined value. An automotive lamp is also provided.

Description

Variable lighting devices and automotive lights

technical field

The present application relates to the field of automotive lighting, and in particular, to a variable lighting device and an automotive lamp.

Background technique

In the prior art, the automotive lighting device is divided into high beam and low beam functions. Generally, the high beam and the low beam are separated structures, so that the space occupied by the automotive lighting device is large.

SUMMARY OF THE INVENTION

The variable lighting device and the vehicle lamp disclosed in the embodiments of the present application integrate the high beam and the low beam into one, and can control the transformation of the high beam and the low beam, so that the volume occupied by the variable lighting device is small.

The present application provides a variable lighting device, comprising: a light source module for emitting light; a light-cutting plate, including a light-cutting surface, the light-cutting surface is used to block part of the light emitted by the light source module, and defines the cut-off surface. The ratio of the light plate blocking the light emitted by the light source module is the light interception amount; and the driving member is used to drive the light source module and the light intercepting plate to move relatively, so that the intercepted light amount of the light intercepting plate changes; wherein, when the light intercepting plate is When the cut light amount is greater than or equal to a predetermined value, the variable lighting device is used for low beam lighting, and when the cut light amount is less than a predetermined value, the variable lighting device is used for high beam lighting.

The driving member of the variable lighting device can drive the light source module and the light-cutting plate to move relative to each other, so that the light-cutting amount of the light-cutting plate changes, so that the variable lighting device can be in a high beam state or a low beam state In addition, by integrating the high beam and the low beam into one, the volume occupied by the variable lighting device can be reduced; and the light emitted by the light source module is partially blocked by a light-cutting plate, thereby reducing glare.

A variable lighting device, comprising: a light source module, including a first light source and a second light source, both of which are used to emit light; a light-cutting plate, including a light-cutting surface, the light-cutting surface for blocking part of the light emitted by the light source module, and defining the ratio of the light intercepting plate to block the light emitted by the light source module as the intercepted light amount; the positions of the first light source and the second light source are different; and a control member, It is used to control the turning on of the first light source or the second light source, so that the light-cutting amount of the light-cutting plate changes; wherein, when the light-cutting amount is greater than or equal to a predetermined value, the variable lighting device is used for Low beam lighting, when the cut-off amount is less than a predetermined value, the variable lighting device is used for high beam lighting.

The variable lighting device can change the light sources at different positions, so that the amount of light cut by the light-cutting plate changes, so that the variable lighting device can be in a high beam state or a low beam state; By being integrated into one body, the volume occupied by the variable lighting device can be reduced; and in the present application, the light emitted by the light source module is partially blocked by a light-cutting plate, so as to reduce glare.

The present application also provides an automobile lamp, including the variable lighting device as described above.

Description of drawings

In order to illustrate the technical solutions in the embodiments of the present application more clearly, the following briefly introduces the drawings required in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can also be obtained from these drawings without any creative effort.

FIG. 1 is a schematic structural diagram of a variable lighting device according to a first embodiment of the present application.

FIG. 2 is a schematic structural diagram of a variable lighting device according to the first embodiment of the present application.

FIG. 3 is a schematic structural diagram of a variable lighting device according to the first embodiment of the present application.

FIG. 4 is a schematic diagram of the height setting of the light-cutting plate of the variable lighting device according to the first embodiment of the present application.

FIG. 5 is a schematic structural diagram of a variable lighting device including a light blocking plate provided by the first embodiment of the present application.

FIG. 6 is a schematic structural diagram of a light source module of a variable lighting device according to a first embodiment of the present application.

FIG. 7 is a schematic structural diagram of a light source module of a variable lighting device according to a first embodiment of the present application.

FIG. 8 is a schematic structural diagram of a variable lighting device according to a second embodiment of the present application.

FIG. 9 is a schematic structural diagram of a variable lighting device provided by a third embodiment of the present application.

Detailed ways

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, but not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present application.

The present application provides a variable lighting device, comprising: a light source module for emitting light; a light-cutting plate, including a light-cutting surface, the light-cutting surface is used to block part of the light emitted by the light source module, and defines the cut-off surface. The rate at which the light plate blocks the light emitted by the light source module is the light interception amount; the light interception amount of the light interception plate can be changed and controllable; wherein, when the light interception amount is greater than or equal to a first predetermined value, the variable light interception amount The lighting device is used for low beam lighting, and when the cut-off amount is less than a second predetermined value, the variable lighting device is used for high beam lighting, and the first predetermined value is greater than the second predetermined value.

In the present application, the ratio at which the light cutting plate blocks the light emitted by the light source module is also the ratio of the amount of the light emitted by the light cutting plate blocking the light emitted by the light source module to the total amount of light emitted by the light source module.

In one case, the present application provides a variable lighting device, including: a light source module for emitting light; a light-cutting plate, including a light-cutting surface, the light-cutting surface is used to block part of the light emitted by the light source module , defining the ratio of the light-cutting plate blocking the light emitted by the light source module as the light-cutting amount; and a driving member for driving the light source module and the light-cutting plate to move relatively, so that the light-cutting amount of the light-cutting plate changes; Wherein, when the light cut amount is greater than or equal to a first predetermined value, the variable lighting device is used for low beam lighting, and when the light cut amount is less than a second predetermined value, the variable lighting device is used for low beam lighting For high beam lighting, the first predetermined value is greater than the second predetermined value.

In the above-mentioned variable lighting device of the present application, the driving member can drive the light source module and the light-cutting plate to move relative to each other, so that the light-cutting amount of the light-cutting plate changes, so that the variable lighting device can be in a high beam state or In addition, by integrating the high beam and the low beam into one, the volume occupied by the variable lighting device can be made smaller; and, in this application, the light emitted by the light source module is partially blocked by a light-cutting plate, so that glare can be reduced .

In another case, the present application also provides a variable lighting device, comprising: a light source module, including a first light source and a second light source, both of which are used to emit light; a light-cutting plate, Including a light-cutting surface, the light-cutting surface is used to block part of the light emitted by the light source module, and the ratio of the light-cutting plate blocking the light emitted by the light source module is defined as the light-cutting amount; the first light source and the first light source The positions of the two light sources are different; and a control member is used to control the turning on of the first light source or the second light source, so that the light interception amount of the light cutting plate changes; wherein, when the light interception amount is greater than or equal to a predetermined value When the variable lighting device is used for low beam lighting, when the cut-off amount is less than a predetermined value, the variable lighting device is used for high beam lighting, and the first predetermined value is greater than the second predetermined value .

The above-mentioned variable lighting device of the present application can switch and turn on light sources at different positions, so that the amount of light cut off by the light-cutting plate changes, so that the variable lighting device can be in a high-beam state or a low-beam state; The light and the low beam are integrated into one body, which can make the volume occupied by the variable lighting device smaller; and in the present application, the light emitted by the light source module is partially blocked by a light-cutting plate, thereby reducing glare.

The variable lighting device of the present application will be described below with reference to the drawings.

Please refer to FIG. 1 to FIG. 7 , which are schematic diagrams of a variable lighting device according to the first embodiment of the present application. The variable lighting device 100 includes a light source module 10, a light cutting plate 20 and a driving member 30; the light source module 10 is used for emitting light; the light cutting plate 20 includes a light cutting surface 201, and the light cutting surface 201 is used for Part of the light emitted by the light source module 10 is blocked, and the ratio of the light intercepting plate 20 blocking the light emitted by the light source module 10 is defined as the amount of intercepted light; the driving member 30 is used to drive the light source module 10 and the light intercepting plate. 20 moves relatively, so that the amount of light intercepted by the light intercepting plate 20 changes.

Wherein, when the light cut amount is greater than or equal to a first predetermined value, the variable lighting device 100 is used for low beam lighting, and when the light cut amount is less than a second predetermined value, the variable lighting device 100 For high beam lighting, the first predetermined value is greater than the second predetermined value; the first predetermined value and the second predetermined value can be set according to actual needs.

In the present application, the light source module 10 is used for collimating and outputting light; wherein, the current collimation technology cannot achieve complete collimation. Therefore, the collimated light emitted by the light source module generally has a divergence angle, and the divergence The existence of the angle is one of the causes of the glare, and the light-cutting plate 20 of the present application can block most of the glare formed by the divergence angle when it is in the first position.

In this embodiment, the light-cutting plate 20 can move between a first position and a second position.

In some embodiments, the first position is located below the second position, so that the upper part of the light emitted by the light source module 10 will be blocked by the light cutting plate 20 . The lower the position, the more blocking, that is, the light emitted by the light source module 10 blocked by the light cutting plate 20 in the first position is greater than that of the light source module blocked by the light blocking plate 20 when the light blocking plate 20 is in the second position. 10 emits a lot of light, or in other words, the amount of light intercepted by the light-cutting plate 20 at the first position is greater than the amount of light intercepted by the light-cutting plate 20 at the second position, so that the light-cutting plate 20 is located at the When the driving member 30 drives the light-cutting plate 20 to be in the second position, the high beam lighting is realized.

In some embodiments, when the light-cutting plate 20 is located at the first position, a line connecting the lowest point of the light-cutting surface 201 of the light-cutting plate 20 and the lowest point of the exit surface 101 of the light source module 10 and The light-cutting surface 201 of the light-cutting plate 20 is vertical, that is, the lowest point of the light-cutting surface 201 of the light-cutting plate 20 is flush with the lowest point of the exit surface 101 of the light source module 10; In the second position, the line connecting the lowest point of the light-cutting surface 201 of the light-cutting plate 20 and the highest point of the exit surface 101 of the light source module 10 is perpendicular to the light-cutting surface 201 of the light-cutting plate 20 , that is, the lowest point of the light-cutting surface 201 of the light-cutting plate 20 is flush with the highest point of the exit surface 101 of the light source module 10 ; wherein, when the light-cutting plate 20 is located at the second position, the The lowest point of the light-cutting surface 201 of the light-cutting plate 20 may also be higher than the highest point of the exit surface 101 of the light source module 10 .

In some embodiments, as shown in FIG. 4 , the height of the light-cutting surface 201 of the light-cutting plate 20 is defined as D, the height of the light-emitting surface 101 of the light source module 10 is defined as H, and the height of the light source module 10 is defined as H. The angle of inclination between the light emitting surface 101 and the light cutting surface 201 of the light cutting plate 20 is α, so D≧H*cosα.

The driving member 30 is used for driving the light-cutting plate 20 to move between the first position and the second position.

In some embodiments, as shown in FIG. 1 , the light-cutting plate 20 can be rotated in a direction away from the light source module 10 , wherein the rotation axis 204 of the light-cutting plate 20 is parallel to the light-cutting surface 201 , Preferably, the height of the rotation axis 204 of the light-cutting plate 20 is the same as that of the highest point of the exit surface 101 of the light source module 10; When the light path of the module 10 is on the light path, that is, when the light cutting plate 20 is located at a first position 202 (similar to covering a cover), it is preferable that the lowest point of the light cutting surface 201 of the light cutting plate 20 and the exit surface of the light source module 10 The connection line of the lowest point of 101 is perpendicular to the light-cutting surface 201 of the light-cutting plate 20, and the light-cutting plate 20 can block the light emitted by the light source module 10 at a higher angle that is prone to glare, so as to realize low beam lighting ; When the light-cutting plate 20 is rotated until the light-cutting surface 201 is parallel to the horizontal direction, that is, the light-cutting plate 20 is located at a second position 203 after being rotated 90 degrees from the first position 202 (similar to opening a cover), preferably The line connecting the lowest point of the light-cutting surface 201 of the light-cutting plate 20 and the highest point of the exit surface 101 of the light source module 10 is perpendicular to the light-cutting surface 201 of the light-cutting plate 20 . Most of the light emitted from the light source module 10 passes through to achieve high beam illumination; the driving member 30 is used to drive the light cutting plate 20 to rotate along the rotation axis 204 to be away from or close to the emitting surface 101 . It can be understood that the light-cutting plate 20 can also achieve high-beam illumination even when the light-cutting plate 20 is rotated from the first position 202 by more than 90 degrees to 270 degrees, such as by 180 degrees, so that the second position 203 is not the same as the above In addition, the light cutting plate 20 can also be rotated toward the direction close to the light source module 10 . In this embodiment, the light-cutting plate 20 moves between the first position 202 and the second position 203 , which can also realize the gradual change of the light-cutting amount, so as to make the brightness of the variable lighting device 100 brighter. Gradient occurs. Further, the light-cutting plate 20 stays at any position between the first position 202 and the second position 203 according to the light output brightness of the variable lighting device 100 , so that stepless dimming can be realized. .

In other embodiments, as shown in FIG. 2 , the light-cutting plate 20 can translate up and down within the light-cutting surface 201 ; when the light-cutting plate 20 moves to the lowest point and the exit surface 101 of the light source module 10 When the connecting line of the lowest point is perpendicular to the light-cutting surface 201 of the light-cutting plate 20, the light-cutting plate 20 is located at a first position 202, and the light-cutting plate 20 can block the light source module 10 at a higher angle. The light that is easy to generate glare can realize low beam lighting. When the light-cutting plate 20 is translated to the lowest point and the connection line between the highest point of the exit surface 101 of the light source module 10 and the light-cutting surface 201 of the light-cutting plate 20 When perpendicular or when the light-cutting plate 20 is translated to the lowest point higher than the highest point of the exit surface 101 of the light source module 10, the light-cutting plate 20 is located at a second position 203, and the light-cutting plate 20 can make the Most of the light emitted from the light source module 10 passes through to realize high beam illumination; the driving member 30 is used to drive the light cutting plate 20 to translate in the plane where the light cutting surface 201 is located. The light-cutting plate 20 can be translated in the plane where the light-cutting surface 201 is located by sliding rails, or can be translated in the plane where the light-cutting surface 201 is located by the expansion and contraction of the telescopic rod. The above is limited. In this embodiment, the light-cutting plate 20 moves between the first position 202 and the second position 203 , so that the light-cutting amount can be gradually changed, so that the brightness of the variable lighting device 100 can be gradually changed. , and further, the light-cutting plate 20 stays at any position between the first position 202 and the second position 203 according to the light output brightness requirement of the variable lighting device 100 , so as to realize stepless dimming.

In still other embodiments, as shown in FIG. 3 , the light-cutting plate 20 can also be rotated within the light-cutting surface 201 , wherein the rotation axis 204 of the light-cutting plate 20 is perpendicular to the light-cutting surface 201 , Preferably, the height of the rotation axis 204 of the light cutting plate 20 is the same as the height of the highest point of the exit surface 101 of the light source module 10 . When the light-cutting plate 20 rotates until the light-cutting surface 201 is on the light path of the light source module 10, the lowest point of the light-cutting surface 201 of the light-cutting plate 20 and the exit surface of the light source module 10 The connecting line of the lowest point of 101 is perpendicular to the light-cutting surface 201 of the light-cutting plate 20 , the light-cutting plate 20 is located at a first position 202 , and the light-cutting plate 20 can block the light source module 10 at a relatively high angle. When the light cutting plate 20 is positioned at a second position 203 after being rotated by 90 degrees from the first position, the lowest point of the light cutting surface 201 of the light cutting plate 20 is the same as the lowest point of the light cutting surface 201. The connection line of the highest point of the exit surface 101 of the light source module 10 is perpendicular to the light cutting surface 201 of the light cutting plate 20. The light cutting plate 20 can make most of the light emitted by the light source module 10 pass through, so as to realize high beam Lamp lighting; the driving member 30 is used to drive the light-cutting plate 20 to rotate within the light-cutting surface 201 . It can be understood that the light-cutting plate 20 can also achieve high-beam illumination even when the light-cutting plate 20 is rotated from the first position 202 by more than 90 degrees to 270 degrees, such as by 180 degrees, so that the second position 203 is not the same as the above limited. In other embodiments, the rotation axis 204 of the light cutting plate 20 may also be slightly higher than the height of the highest point of the exit surface 101 of the light source module 10 .

In some embodiments, as shown in FIG. 5 , the variable lighting device 100 may further include a light blocking plate 50 , and the light blocking plate 50 may be disposed directly below the light cutting plate 20 , and is connected with the light cutting plate 20 . The light exits 21 are formed between them at intervals, and the light exits 21 are used to allow the light emitted by the light source module 10 to pass through, and the light blocking plate 50 is used to block the lower part of the light emitted by the light source module 10 to prevent The lower light emitted from the light source module 10 is prevented from being reflected by the ground or the like to form glare.

In some embodiments, the light blocking plate 50 may be integrally designed with the light cutting plate 20 , that is, it is connected to at least one position outside the optical path of the light source module 10 , so that the driving member 30 drives the cutting plate 20 . When the light plate 20 moves, the light blocking plate 50 also moves with it. Wherein, when corresponding to the embodiment of FIG. 1 , the light-cutting plate 20 can be rotated to the connecting line between the lowest point of the light-blocking plate 50 and the highest point of the exit surface 101 of the light source module 10 and the connection line of the light-cutting plate 20 . The light-cutting surfaces 201 are perpendicular to each other, so that the light-cutting plate 20 and the light blocking plate 50 can allow most of the light emitted from the light source module 10 to pass through, thereby realizing high beam lighting.

In some embodiments, the light source module 10 may include a light source and one or more reflection modules; each of the reflection modules may include one or more reflection sub-modules.

In some embodiments, please refer to FIG. 6 , the light source module 10 includes: a light source 11 and a reflection module 12 ; the light emitting surface 101 of the light source 11 is divided into n light emitting areas 102 , where n is a positive integer greater than 1; The reflection module 12 includes n reflection sub-modules, and the n reflection sub-modules are in one-to-one correspondence with the n light-emitting regions 102 , and each of the reflection sub-modules is used to emit light from the corresponding light-emitting region 102 . Light reflection; the reflective surface of each of the reflective sub-modules is inclined toward the light-emitting surface. In this embodiment, the reflective surface of each of the reflective sub-modules is the emitting surface of the light source module 11 ; wherein, n The reflection submodules may further include m forward reflection submodules 121 and o reverse emission submodules 122, where m and o are positive integers or zero, and m+o=n; the forward reflection submodules The light emitting direction of the light reflected by 121 is different from the light emitting direction of the light reflected by the retro-emitting sub-module 122, so as to adapt to different light emitting requirements. Wherein, the inclination angle between the reflection surface of each of the first reflection sub-modules and the light exit surface of the light source 11 may be between 40 degrees and 45 degrees, so as to make the light exit angle better and reduce the glare entering the human eye; Preferably, it is between 42 degrees and 45 degrees, so as to make the light exit angle better and reduce the glare entering the human eye. In some embodiments, the inclination angle between the reflective surface of each of the reflective sub-modules and the light-emitting surface of the light source 11 may be approximately equal, so that the light reflected by the reflective surface of each of the reflective sub-modules is relative to the The light emitting angles of the light emitting surfaces of the light sources 11 are substantially the same.

In other embodiments, the light source module 10 may further include multiple groups of reflection modules. Specifically, please refer to FIG. 7 , the light source module 10 includes: a light source 11 , a first reflection module 12 and a second reflection module 13 ; The light emitting surface 101 of the light source 11 is divided into n light emitting areas 102, wherein n is a positive integer greater than 1; the first reflection module 12 includes n first reflection sub-modules, n first reflection sub-modules One-to-one correspondence with the n light exit areas 102, each of the first reflection sub-modules is used to reflect the light emitted from the corresponding light exit area 102; the reflection surface of each of the first reflection sub-modules faces toward The light-emitting surface is inclined; the second reflective film block 13 includes n second reflective sub-modules 131, and the n second reflective sub-modules 131 correspond one-to-one with the n first reflective sub-modules, each The second reflection sub-module 131 is used to reflect the light emitted by the corresponding first reflection sub-module again. In this embodiment, the reflection surface of each second reflection sub-module 131 is the light source module 11; wherein, the n first reflection submodules 12 may further include m forward reflection submodules 121 and o reverse emission submodules 122, where m and o are positive integers or zero, and m+ o=n; the light emitting direction of the light reflected by the forward reflection sub-module 121 is different from the light emitting direction of the light reflected by the reverse emitting sub-module 122 to meet different light emitting requirements. Wherein, the inclination angle between the reflection surface of each of the first reflection sub-modules and the light exit surface of the light source 11 may be between 40 degrees and 45 degrees, so as to make the light exit angle better and reduce the glare entering the human eye; Preferably, it is between 42 degrees and 45 degrees, so as to make the light exit angle better and reduce the glare entering the human eye. In some embodiments, the inclination angle between the reflective surface of each of the first reflective sub-modules and the light-emitting surface of the light source 11 may be approximately equal, so that the light reflected by the reflective surface of each of the first reflective sub-modules The light emitting angles relative to the light emitting surface of the light source 11 are substantially the same. The reflection surfaces of the n second reflection sub-modules 131 may all be perpendicular to the light-emitting surface of the light source 11 , and the reflection surfaces of the n second reflection sub-modules 131 may all be inclined to the light-emitting direction of the light source 11 , to further eliminate glare.

Please refer to FIG. 8 , which is a schematic diagram of a variable lighting device according to a second embodiment of the present application. The variable lighting device 100a includes a light source module 10, a light-cutting plate 20, and a driving member 30; the light source module 10 is used to emit light; the light-cutting plate 20 includes a light-cutting surface 201, and the light-cutting surface 201 is used for In order to block part of the light emitted from the light source module 10 , the ratio of blocking the light emitted from the light source module 10 by the light cutting plate 20 is defined as the intercepted light amount; the driving member 30 is used to drive the light source module 10 and the light cutting plate 20 . The relative movement changes the amount of light intercepted by the light intercepting plate 20 .

Wherein, when the light cut amount is greater than or equal to a first predetermined value, the variable lighting device 100a is used for low beam lighting, and when the light cut amount is less than a second predetermined value, the variable lighting device 100a For high beam lighting, the first predetermined value is greater than the second predetermined value; the first predetermined value and the second predetermined value can be set according to actual needs.

In the present application, the light source module is used for collimating and outputting light; wherein, the current collimation technology cannot achieve complete collimation. Therefore, the collimated light emitted by the light source module generally has a divergence angle, and the divergence angle The existence of glare is one of the reasons for the occurrence of glare.

In this embodiment, the light source module 30 can move between a third position and a fourth position; the light cutting plate 20 of the present application can block the divergence angle when the light source module 30 is located at the third position. most of the glare.

Wherein, when the light source module 30 is located at the third position, the amount of light intercepted by the light cutting plate 20 is greater than the amount of light intercepted by the light cutting plate 20 when the light source module 30 is located at the fourth position; when the driving member 30 When the light source module 30 is driven to be positioned at the third position, low beam lighting is achieved, and when the driving member 30 drives the light source module 30 to be positioned at the fourth position, high beam lighting is achieved.

In some embodiments, when the light source module 10 is located at the third position, a line connecting the lowest point of the light-cutting surface 201 of the light-cutting plate 20 and the lowest point of the exit surface 101 of the light source module 10 and The light-cutting surface 201 of the light-cutting plate 20 is perpendicular, that is, the lowest point of the light-cutting surface 201 of the light-cutting plate 20 is flush with the lowest point of the exit surface 101 of the light source module 10 ; when the light source module 10 In the fourth position, the line connecting the lowest point of the light-cutting surface 201 of the light-cutting plate 20 and the highest point of the exit surface 101 of the light source module 10 is perpendicular to the light-cutting surface 201 of the light-cutting plate 20 , that is, the lowest point of the light-cutting surface 201 of the light-cutting plate 20 is flush with the highest point of the exit surface 101 of the light source module 10 ; wherein, when the light source module 10 is located at the fourth position, the The lowest point of the light-cutting surface 201 of the light-cutting plate 20 may also be higher than the highest point of the exit surface 101 of the light source module 10 .

In some embodiments, as shown in FIG. 8 , the center line between the third position 102 and the fourth position 103 coincides with the optical axis of the light source module 10 , and the third position 102 is higher than The fourth position 103 is far away from the light-cutting surface 201 , and when the light source module 10 is positioned at the third position 102 , the light emitted by the light source module 10 blocked by the light-cutting plate 20 is greater than where the light source module 10 is located. In the fourth position 103, the light source module 10 blocked by the light-cutting plate 20 emits more light. When the light source module 10 is in the fourth position 103, the amount of light intercepted by the light-cutting plate 20, so that when the driving member 30 drives the light source module 10 to be in the third position 102, low beam lighting is realized. When the driving member 30 drives the light source module 10 to be located at the fourth position 103, high beam lighting is realized. Wherein, the light source module 10 can be moved between the third position 102 and the fourth position 103 by sliding along the optical axis through a sliding rail or by telescopically moving along the optical axis through a telescopic rod. It can be understood that, in this embodiment, the light source module 10 moves between the third position 102 and the fourth position 103, and can also realize the gradual change of the light cutoff amount, which can make the variable lighting device 100a The brightness changes gradually. Further, the light source module 10 stays at any position between the third position 102 and the fourth position 103 according to the light output brightness requirement of the variable lighting device 100a, so that the stepless adjustment can be realized. Light.

The driving member 30 is used for driving the light source module 10 to move between the third position 102 and the fourth position 103 .

The setting of the height D of the light-cutting surface of the light-cutting plate 20 is similar to that in the foregoing embodiment, and details are not described herein again.

In some embodiments, the variable lighting device 100a may further include a light blocking plate, and the arrangement of the light blocking plate is similar to that in the foregoing embodiments, and details are not described herein again.

In some embodiments, the light source module 10 may include a light source and one or more reflection modules; each of the reflection modules may include one or more reflection sub-modules. The arrangement of the light source and the reflection module can be referred to in the foregoing embodiments, and details are not repeated here.

Please refer to FIG. 9 , which is a schematic diagram of a variable lighting device according to a third embodiment of the present application. The variable lighting device 100b includes a light source module 10, a light cutting plate 20 and a control member 40; the light source module 10 includes a first light source 111 and a second light source 112, both of which are used for The light is emitted; the light-cutting plate 20 includes a light-cutting surface 201, and the light-cutting surface 201 is used to block part of the light emitted by the light source module 10, and it is defined that the light-cutting plate 20 blocks the light emitted by the light source module 10 The ratio is the amount of cut light; wherein, the first light source 111 is disposed farther from the light cut surface than the second light source 112; the control member 40 is used to control the first light source 111 or the second light source 112 Turn on, so that the amount of light intercepted by the light intercepting plate 20 changes.

Wherein, when the light cut amount is greater than or equal to a first predetermined value, the variable lighting device 100b is used for low beam lighting, and when the light cut amount is less than a second predetermined value, the variable lighting device 100b For high beam lighting, the first predetermined value is greater than the second predetermined value; the first predetermined value and the second predetermined value can be set according to actual needs.

In the present application, the light source module 10 is used for collimating and outputting light; wherein, the current collimation technology cannot achieve complete collimation, so the collimated light emitted by the light source module 10 generally has a divergence angle, The existence of the divergence angle is one of the causes of glare, and the light-cutting plate 20 of the present application can block most of the glare formed by the divergence angle when the first light source 111 is turned on.

Wherein, when the first light source 111 is turned on, the amount of light intercepted by the light-cutting plate 20 is greater than the amount of light intercepted by the light-cutting plate 20 when the second light source 112 is turned on; when the control member 40 controls the first light source 111 to be turned on When the control element 40 controls the second light source 112 to turn on, the low beam lighting is realized, and the high beam lighting is realized.

In some embodiments, when the first light source 111 is turned on, a line connecting the lowest point of the light-cutting surface of the light-cutting plate 20 and the lowest point of the light-emitting surface 1111 of the first light source 111 and the light-cutting plate 20 The light-cutting surface 201 of the light-cutting plate 20 is perpendicular to the light-cutting surface 201, that is, the lowest point of the light-cutting surface 201 of the light-cutting plate 20 is flush with the lowest point of the light-emitting surface 1111 of the first light source 111. When the light source 111 is turned on, it can block most of the glare formed by the divergence angle and realize low beam lighting; when the second light source 112 is turned on, the lowest point of the light cutting surface 201 of the light cutting plate 20 is the same as the second light source 112. The line connecting the highest points of the light-emitting surface 1121 is perpendicular to the light-cutting surface 201 of the light-cutting plate 20 , that is, the lowest point of the light-cutting surface 201 of the light-cutting plate 20 and the highest point of the light-emitting surface 1121 of the second light source 112 When the second light source 112 is turned on, the light-cutting plate 20 basically does not block most of the glare formed by the divergence angle, so as to realize high beam lighting; of course, when the second light source 112 is turned on, the cut-off plate 20 The lowest point of the light-cutting surface 201 of the light plate 20 is higher than the highest point of the light-emitting surface 1121 of the second light source 112, and the light-cutting plate 20 does not block most of the glare formed by the divergence angle when the second light source 112 is turned on. , to achieve high beam lighting.

In some embodiments, as shown in FIG. 9 , the optical axis of the first light source 111 coincides with the optical axis of the second light source 112 , and the first light source 111 is farther away from the second light source 112 than the second light source 112 In the light-cutting surface 201 , when the first light source 111 is turned on, the proportion of the light emitted by the first light source 111 blocked by the light-cutting plate 20 is higher than the proportion of the light emitted by the light-cutting plate 20 when the second light source 112 is turned on. The proportion of light emitted by the second light source 112 is large, or in other words, the amount of light intercepted by the light cutting plate 20 when the first light source 111 is turned on is greater than the amount of light intercepted by the light cutting plate 20 when the second light source 112 is turned on, so that the When the control part 40 controls the first light source 111 to be turned on, the low beam illumination is realized, and when the control part 40 controls the second light source 112 to be turned on, the high beam illumination is realized.

Further, in other embodiments, the control member 40 may also control the first light source 111 and the second light source 112 to be turned on at the same time, so as to obtain light with greater brightness; in addition, the light source module 10 may further include Other light sources, the other light sources may be located at predetermined positions between the first light source 111 and the second light source 112 .

The setting of the height D of the light-cutting surface of the light-cutting plate 20 is similar to that in the foregoing embodiment, and details are not described herein again.

In some embodiments, the variable lighting device 100b may also include a light blocking plate, which is similar to the foregoing embodiments, and will not be repeated here.

The fourth embodiment of the present application further provides a vehicle lamp, the vehicle lamp includes the variable lighting device 100, 100a, 100b as described in the first embodiment or the second embodiment, the variable lighting device 100 , 100a, 100b can be arranged at the front end of the car.

It can be understood that the automobile lamp 200 can be made of aluminum or stainless steel, so as to have better mechanical properties and not be easily damaged; in addition, each module in the automobile lamp 200 can be made with the protection standard of IP68 level, so as to avoid damage to the automobile lamp 200. It has ultra-high waterproof performance, so that the automobile lamp 200 can be suitable for wading models such as off-road vehicles.

In the above-mentioned embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.

The embodiments of the present application have been introduced in detail above, and specific examples are used to illustrate the principles and embodiments of the present application. The descriptions of the above embodiments are only used to help understand the methods and core ideas of the present application; at the same time, for Persons of ordinary skill in the art, based on the idea of the present application, may have changes in specific embodiments and application scopes. In conclusion, the contents of this specification should not be construed as limitations on the present application.

Claims (2)

1. A variable lighting device, characterized in that, comprising: a light source module, including a first light source and a second light source, both of which are used to emit light; a light-cutting plate, including a light-cutting surface, the light-cutting surface is used to block part of the light emitted by the light source module, and the ratio of the light-cutting plate blocking the light emitted by the light source module is defined as the light-cutting amount; the first light source and the the positions of the second light sources are different; and a control member, used to control the turning on of the first light source or the second light source, so that the light interception amount of the light intercepting plate changes; wherein, when the light interception amount is greater than or equal to a predetermined value, the variable illumination The device is used for low beam lighting, and when the cut-off amount is less than a predetermined value, the variable lighting device is used for high beam lighting; Wherein, the optical axis of the first light source coincides with the optical axis of the second light source, and the first light source is farther from the light-cutting surface than the second light source. When the first light source is turned on, the For low beam lighting, when the control component controls the second light source to be turned on, high beam lighting is realized. 2. An automobile lamp, characterized by comprising the lighting device according to claim 1.

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