Automobile interior lighting

Abstract

The present invention relates to an automobile interior lighting lamp, belonging to the technical field of automobile interior lighting. The lamp comprises a light emitting module and a control module. The light emitting module comprises a plurality of LED light sources and lenses corresponding to the plurality of LED light sources. The plurality of lenses are arranged on the optical paths of the corresponding LED light sources and are used to scatter light emitted by the corresponding LED light sources. The control module is electrically connected to the plurality of LED light sources and adjusts the emission wavelength. The light emitting module further comprises an angle adjuster, which is used to adjust the distance between the emission surface of the LED light source and the incident surface of the lens. The control module is electrically connected to the angle adjuster, and the refraction direction of light emitted by the LED light source after entering the lens is used as a reference direction. When the emission wavelength is less than a threshold value, the control module instructs the angle adjuster to drive the LED light source to tilt toward a side away from the reference direction. When the emission wavelength is greater than the threshold value, the control module instructs the angle adjuster to drive the LED light source to tilt toward the reference direction. The light source is adjustable and has a good lighting effect.

Description

Technical Field

[0001] The invention belongs to the technical field of interior lighting of vehicles, and in particular relates to an interior lighting lamp for a vehicle. Background Art

[0002] As cars need to travel in dim environments and increasingly serve as private spaces, they need to provide interior lighting for users.

[0003] Although current automotive ambient lighting fixtures can also achieve lighting functions, even if a uniform light-emitting surface is formed by an array of multiple LEDs, there are still three problems: 1) Due to the constraints of electronic circuits, there will still be surface point problems; 2) It is easy to cause glare when observed at close range, affecting the driver's driving safety; 3) It requires a large space and power. For this reason, Chinese patent application CN110962741A discloses a uniformly luminous automotive interior lighting lamp, including a lamp housing, a lampshade, an LED light source, a circuit substrate, and an optical lens placed between the circuit substrate and the lampshade. The optical lens is provided with a plurality of light guide units, and the cross section of the light guide unit includes a light incident surface, a light guide surface, and a light guide surface. The optical lens has a front surface, a light-emitting surface, and an end surface, wherein the light-emitting surface is the front surface of the optical lens, the light-guiding surface is the back surface of the optical lens, and the light-entering surface and the end surface are respectively located at both ends of the optical lens; the light-entering surface is an inclined surface, the light-guiding surface and the end surface are total reflection surfaces, and the light-emitting surface is a semi-conductive and semi-light-emitting surface with a surface treated with corroded leather grain; the light-guiding unit is a gyroid of the cross section about the vertical axis, and the space enclosed by the light-entering surface is the light entrance of the LED light source; by arranging corresponding light-guiding units on the optical paths of several LED light sources, the several light-guiding units scatter the light of several LED light sources, so that the emitted light is more uniform, has no graininess, and no glare, and has a simple and compact structure;

[0004] However, in some cases, light sources of different colors are required, such as switching between white light, yellow light or other colors of light. At the same time, different light intensities are required in different situations. However, different color light sources have different wavelengths and require different lens refractive index parameters. A single lens may not be able to meet the usage requirements. At this time, there are two ways, adjust the light source or replace the lens. However, due to the size limitation of the equipment in the car, interior lighting is difficult to be compatible with lenses of various models and sizes. At this time, the light emission mode of the light source needs to meet the user experience such as light uniformity, and at the same time, the light source change is realized without replacing the lens. The light source needs to be adjusted according to the actual situation. For this reason, a car interior lighting with intelligently adjustable light source is needed. Summary of the Invention

[0005] In order to solve the above problems existing in the prior art, the present invention provides an automobile interior lighting lamp having the characteristic of intelligently adjusting the light source.

[0006] The purpose of the present invention can be achieved through the following technical solutions:

[0007] An automotive interior lighting lamp includes a light-emitting module and a control module. The light-emitting module includes a plurality of LED light sources and lenses corresponding to the plurality of LED light sources. The plurality of lenses are arranged in the light paths of the corresponding LED light sources and are used to scatter light emitted by the corresponding LED light sources.

[0008] The control module is electrically connected to a plurality of LED light sources and adjusts the emission wavelength. The light emitting module also includes an angle adjuster, which is used to adjust the distance between the emission surface of the LED light source and the incident surface of the lens. The control module is electrically connected to the angle adjuster, and the refraction direction of the light emitted by the LED light source after entering the lens is used as the reference direction. When the emission wavelength is less than a threshold, the control module instructs the angle adjuster to drive the LED light source to tilt away from the reference direction. When the emission wavelength is greater than the threshold, the control module instructs the angle adjuster to drive the LED light source to tilt toward the reference direction.

[0009] As a preferred technical solution of the present invention, the control module is pre-input with a standard wavelength λ0, the control module is used to adjust the light emission wavelength of the LED light source to λ, the angle adjuster is pre-input with a standard tilt angle, and the control module instructs the angle of the angle adjuster to tilt A° toward one side of the reference direction with the standard tilt angle as the origin, where A = (λ-λ0)\λ0×c, and c is a pre-input constant.

[0010] As a preferred technical solution of the present invention, it also includes a monitoring module, which is used to detect the uniformity of light and upload the uniformity data to the control module. The control module determines whether the uniformity data is less than a threshold value, and when the judgment result is no, instructs the angle adjuster to tilt toward the standard tilt angle.

[0011] As a preferred technical solution of the present invention, the control module is pre-input with a uniformity reference value J0, the monitoring module is used to detect the light uniformity and upload the uniformity data J to the control module, the control module determines whether the uniformity data J is greater than the uniformity reference value J0, and when the judgment result is no, instructs the angle of the angle adjuster to tilt toward the standard tilt angle.

[0012] As a preferred technical solution of the present invention, it also includes auxiliary light sources corresponding to several LED light sources. The monitoring module is used to detect the light intensity and upload it to the control module. The control module determines whether the light intensity is less than the threshold and instructs the auxiliary light source to start when the judgment result is yes.

[0013] As a preferred technical solution of the present invention, the control module is pre-input with a light intensity standard value L0, the monitoring module is used to detect the light intensity L and upload it to the control module, and the monitoring module adjusts the power of the auxiliary light source to P, where P = (|L-L0|) / L0×P0×d, and P0 and d are pre-input constants.

[0014] As a preferred technical solution of the present invention, the control module instructs the LED light source to reduce power after instructing the auxiliary light source to start.

[0015] As a preferred technical solution of the present invention, the control module instructs the power of the plurality of LED light sources to be corrected downward by A1 times, wherein A1=P / P0×e, Pl0 and e are pre-input constants.

[0016] The beneficial effects of the present invention are:

[0017] (1) By instructing the control module to instruct the angle adjuster to drive the LED light source to tilt away from the reference direction when the wavelength of the light is less than the threshold, and instructing the control module to instruct the angle adjuster to drive the LED light source to tilt toward the reference direction when the wavelength of the light is greater than the threshold, the probability of a situation in which part of the light is refracted to the edge of the lens when the refraction angle changes after the wavelength and color of the light are adjusted, resulting in a decrease in the uniformity of the light output, thereby ensuring the uniformity of the light output; at the same time, compared with directly replacing the lens for changing the light source, by directly fine-tuning the irradiation direction of the light source, the space requirement is smaller, and the requirements of a simple structure and a compact size of the lighting lamp when used for interior lighting are taken into account;

[0018] (2) The control module determines whether the uniformity data is greater than a threshold value, and when the judgment result is no, instructs the angle adjuster to tilt toward the standard tilt angle, thereby adjusting the tilt angle of the LED light source to the standard tilt angle close to the center of the adjustment range when there are random factors interfering with the uniformity, thereby reducing the influence of the angle change of the LED light source on the uniformity and improving the uniformity of the light output;

[0019] (3) By making the control module judge whether the light intensity is less than the threshold, and instructing the auxiliary light source to start when the judgment result is yes, the auxiliary light source is turned off when the light intensity is high, thereby ensuring the lighting effect while reducing power consumption and heat. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] To facilitate understanding by those skilled in the art, the present invention is further described below with reference to the accompanying drawings.

[0021] Figure 1 It is a schematic diagram of the forward structure of the present invention;

[0022] Figure 2 It is a schematic diagram of the side cross-sectional structure of the present invention;

[0023] Figure 3 This is the optical path diagram when the light from the LED light source enters the lens;

[0024] Figure 4 This is the optical path diagram when the wavelength of the light from the LED light source is shortened and enters the lens;

[0025] Figure 5 This is the light path diagram when the wavelength of the light emitted by the LED light source is shortened and the angle is adjusted before entering the lens;

[0026] Description of main component symbols:

[0027] In the figure: 1, housing; 2, LED light source; 21, angle adjuster; 3, lens; 31, light incident surface; 32, light exit surface. DETAILED DESCRIPTION

[0028] In order to further illustrate the technical means and effects adopted by the present invention to achieve the predetermined purpose of the invention, the specific implementation methods, structures, features and effects of the present invention are described in detail below in conjunction with the accompanying drawings and preferred embodiments.

[0029] See also Figure 1-5 A car interior lighting lamp includes a light-emitting module and a control module. The light-emitting module includes a plurality of LED light sources 2 and lenses 3 corresponding to the plurality of LED light sources 2. The plurality of lenses 3 are arranged on the light paths of the corresponding LED light sources 2 and are used to scatter light emitted by the corresponding LED light sources 2.

[0030] Specifically, the lens 3 includes at least a light incident surface 31 and a light emitting surface 32. The material and shape of the lens 3 ensure that after light enters from the light incident surface 31, the light is refracted into different angles by the light incident surface 31 and enters the interior of the lens 3. Then, the light is emitted from the light emitting surface 32, and the light is refracted into different angles by the light emitting surface 32. At this time, the light emitted by a single light source is refracted into light at different angles, which improves the uniformity of the lighting while eliminating the need to improve the uniformity of the light by providing an array-type LED light source 2, thereby reducing the volume of the lighting lamp.

[0031] Optionally, a total reflection surface can be provided in the lens 3. The position of the total reflection surface ensures that after the light enters from the light incident surface 31, it is refracted toward the total reflection surface, and then the light is reflected from the total reflection surface and emitted toward the light exiting surface 32. In this case, the utilization rate of the light source can be improved and the probability of part of the light being absorbed by the lens 3 during the multiple refraction processes can be reduced.

[0032] The lighting lamp further comprises at least one housing 1, which encloses a space within the housing 1. An opening is formed on the surface of the housing 1, and a lens 3 is embedded in the opening of the housing 1. At this time, a light incident surface 31 of the lens 3 faces the inside of the housing 1, and a light emitting surface 32 of the lens 3 faces the outside of the housing 1.

[0033] As for the LED light source 2, there are a total of several LED light sources 2, and the several LED light sources 2 are arranged in the housing 1 and are arranged toward the light incident surface 31 of the lens 3. At the same time, the opening of the housing 1 is rectangular, and the several LED light sources 2 are arranged along the long side of the rectangular opening. At this time, the several lenses 3 are also arranged along the long side of the rectangular opening. One LED light source 2 and the corresponding lens 3 serve as a light-emitting module, and the several light-emitting modules are arranged along the long side of the rectangular opening. The several LED light sources 2 cooperate with the several lenses 3, which further improves the uniformity of the illumination light. At the same time, compared with the solution of setting an array-type LED light source 2, this solution only requires two to five LED light sources 2 to form a relatively uniform light-emitting surface on the light exit surface 32 of the several lenses 3 in combination with the corresponding lenses 3, thereby improving the uniformity of the light and reducing the volume of the lighting lamp;

[0034] When in use, several LED light sources 2 emit light in a direction perpendicular to their own light-emitting surfaces, and emit light toward the light incident surface 31 of the corresponding lens 3. The light enters the light incident surface 31 of the corresponding lens 3, and after being scattered by the light incident surface 31 and the light emitting surface 32, it is emitted from the light emitting surface 32 at various angles to achieve uniform lighting.

[0035] In the above process, different users in different environments require different colors of lighting light. In this case, the LED light source 2 needs to change the wavelength of the light emitted. To this end, the control module is electrically connected to the plurality of LED light sources 2 and adjusts the light emission wavelength. Specifically, for each LED light source 2, a solution can be selected in which LED chips of multiple colors are pre-installed during production and packaging. When in use, the light emission color and wavelength can be switched by energizing LEDs of different colors. For example, LED chips of the three primary colors of red, blue, and green can be packaged together. When in use, the light emission color and wavelength can be adjusted by energizing different LED chips.

[0036] In the above solution, after adjusting the emission wavelength, light of different wavelengths has different refractive indices in the same medium. When the wavelength of the emitted light undergoes a relatively drastic change, for example, switching from a wavelength close to red light to a wavelength close to violet light, the refraction angle of the light changes significantly when it enters the light incident surface 31 and is refracted. At the same time, in order to take into account the smaller interior space of the vehicle as much as possible, the overall volume of the lighting lamp needs to be reduced. The size of the lens 3 is limited. When the refraction angle changes significantly, some light is refracted to the edge of the lens 3, resulting in reduced light uniformity. Since the lighting lamp is relatively small, it is difficult to replace the lens 3 or adjust the angle of the lens 3. Therefore, it is necessary to adjust the angle of the LED light source 2 relative to the light incident surface 31.

[0037] To this end, the light emitting module further includes an angle adjuster 21, which is used to adjust the distance between the emission surface of the LED light source 2 and the incident surface of the lens 3. The control module is electrically connected to the angle adjuster 21. The refraction direction of the light emitted by the LED light source 2 after entering the lens 3 is used as a reference direction. When the emission wavelength is less than a threshold, the control module instructs the angle adjuster 21 to drive the LED light source 2 to tilt away from the reference direction. When the emission wavelength is greater than the threshold, the control module instructs the angle adjuster 21 to drive the LED light source 2 to tilt toward the reference direction.

[0038] Specifically, the operator adjusts the angle of the LED light source 2 relative to the light incident surface 31 and pre-measures the angle of the LED relative to the incident surface when the light intensity of the light emitted from the light emitting surface 32 is the maximum under the condition of emitting white light with a wavelength of 530nm, and records it as the standard tilt angle;

[0039] At the same time, for the angle adjuster 21, optionally, a hinge and motor combination solution can be selected, with the two ends of the hinge respectively installed in the LED light source 2 and the housing, and the motor drives the LED light source 2 to rotate around the hinge to complete the angle adjustment of the LED light source 2. The control module is electrically connected to the motor to control the rotation angle of the LED light source 2 by controlling the motor;

[0040] The control module controls the wavelength of the LED light source 2. The control module reads its own instruction on the wavelength of the LED light source 2 once per second to obtain the current wavelength.

[0041] The angle between the light and the incident surface after it enters the incident surface is the refraction angle. When the wavelength is small and the color of the light is close to purple, the refraction angle of the light emitted from the LED light source 2 through the air and entering the lens 3 is larger than the refraction angle of 530nm white light. At this time, it is necessary to reduce the angle between the light and the incident surface after it enters the incident surface so that the angle of the refracted light relative to the incident surface is maintained at the situation where the LED emits 530nm white light and is at a standard tilt angle. According to the geometric law, it is necessary to reduce the angle between the incident light and the incident surface before it enters the incident surface. At the same time, since the light is incident from air into a solid medium, In the image, the light is deflected toward the normal, so the reference direction is the direction toward the normal. According to geometric laws, when the angle between the light and the incident surface before it enters the incident surface becomes smaller, the refraction angle becomes smaller. Since the light emitted by the LED light source 2 is perpendicular to the light-emitting surface of the LED light source 2, when the LED light source 2 is tilted away from the reference direction, the angle between the light and the incident surface before it enters the incident surface becomes smaller. After the light enters the incident surface, the angle between the light and the incident surface becomes smaller, which offsets the increase in the refraction angle when the wavelength becomes smaller, and reduces the probability that part of the light will be refracted to the edge of the lens 3 when the refraction angle increases, resulting in reduced light uniformity.

[0042] Similarly, when the wavelength is long and the color of the light is close to red, the refraction angle is small. In this case, it is necessary to increase the angle between the incident light and the incident surface. In this case, the LED light source 2 needs to be tilted toward the reference direction. After the tilt, the angle between the incident light and the incident surface becomes larger, which offsets the decrease in the refraction angle when the wavelength increases and reduces the probability that part of the light will be refracted to the edge of the lens 3 when the refraction angle decreases, resulting in reduced light uniformity.

[0043] Specifically, the control module is pre-input with a standard wavelength λ0, and is used to adjust the light emission wavelength of the LED light source 2 to λ. The angle adjuster 21 is pre-input with a standard tilt angle, and the control module instructs the angle adjuster 21 to tilt A° toward one side of the reference direction with the standard tilt angle as the origin, where A = (λ-λ0)\λ0×c, and c is a pre-input constant;

[0044] When the wavelength λ is small, less than λ0, the LED light source 2 needs to be tilted away from the reference direction. At this time, the value of A=(λ-λ0)\λ0×c is less than 0. When the control module instructs the angle adjuster 21 to tilt A° toward the reference direction with the standard tilt angle as the origin, it is equivalent to instructing the angle adjuster 21 to tilt |A|° away from the reference direction with the standard tilt angle as the origin, thereby instructing the LED light source 2 to tilt away from the reference direction when the wavelength is small.

[0045] Similarly, when the wavelength λ is large, greater than λ0, the LED light source 2 needs to be tilted toward the reference direction. At this time, the value of A=(λ-λ0)\λ0×c is greater than 0. When the control module instructs the angle adjuster 21 to tilt A° toward the reference direction with the standard tilt angle as the origin, it is equivalent to instructing the angle adjuster 21 to tilt |A|° toward the reference direction with the standard tilt angle as the origin, thereby instructing the LED light source 2 to tilt toward the reference direction when the wavelength is large.

[0046] By instructing the control module to instruct the angle adjuster 21 to drive the LED light source 2 to tilt away from the reference direction when the emission wavelength is less than the threshold, and instructing the control module to instruct the angle adjuster 21 to drive the LED light source 2 to tilt toward the reference direction when the emission wavelength is greater than the threshold, the probability of a situation in which part of the light is refracted to the edge of the lens 3 when the refraction angle changes after adjusting the wavelength and color of the light, resulting in a decrease in the uniformity of the light output, is reduced, thereby ensuring the uniformity of the light output;

[0047] At the same time, compared with directly replacing the lens 3 to change the light source, directly fine-tuning the irradiation direction of the light source requires less space, and takes into account the requirements of simple structure and compact size of the lighting lamp when used for interior lighting.

[0048] In the above process, although the lens 3 is provided to make the light more uniform, in some cases, due to the influence of factors such as random errors or thermal expansion and contraction, uneven light may still occur in some cases. In this case, it is necessary to adjust the LED light source 2 to the standard tilt angle, and adjust the tilt angle of the LED light source 2 to the standard tilt angle close to the center of the adjustment range to reduce the influence of the angle change of the LED light source 2 on the uniformity. To this end, a monitoring module is also included. The monitoring module is used to detect the uniformity of the light and upload the uniformity data to the control module. The control module determines whether the uniformity data is less than a threshold value, and if the judgment result is no, instructs the angle of the angle adjuster 21 to tilt toward the standard tilt angle;

[0049] Specifically, the control module is pre-input with a uniformity reference value J0. The monitoring module collects the light intensity of each collection point once per second and calculates the standard deviation of a number of light intensity data, thereby detecting the light uniformity and uploading the uniformity data J to the control module. The larger the standard deviation, the lower the uniformity J. The control module determines whether the uniformity data J is greater than the uniformity reference value J0. If the judgment result is yes, it means that the larger the standard deviation, the more non-uniform the light intensity of each collection point, and the lower the uniformity. At this time, the control module determines that the uniformity data is less than the uniformity reference value J0 and instructs the angle adjuster 21 to tilt toward the standard tilt angle.

[0050] The control module determines whether the uniformity data is greater than the threshold value, and when the judgment result is no, instructs the angle adjuster 21 to tilt toward the standard tilt angle. When there are random factors interfering with the uniformity, the tilt angle of the LED light source 2 is adjusted to the standard tilt angle close to the center of the adjustment range, reducing the impact of the angle change of the LED light source 2 on the uniformity and improving the uniformity of the light output.

[0051] In some cases, the angle adjustment will cause the light intensity to weaken, reducing the lighting effect. For example, when the tilt angle of the LED light source 2 is too large, there is a probability that part of the light will move out of the light incident surface 31 of the lens 3 as the tilt angle changes, thereby causing part of the light to be unable to participate in the lighting. For this reason, an auxiliary light source corresponding to the plurality of LED light sources 2 is also included. The monitoring module is used to detect the light intensity and upload it to the control module. The control module determines whether the light intensity is less than a threshold value and instructs the auxiliary light source to start if the judgment result is yes.

[0052] Specifically, the auxiliary light source is a white LED lamp arranged next to the LED light source 2, and the control module is electrically connected to the auxiliary light sources and instructs the start and stop of the auxiliary light sources;

[0053] The control module is pre-input with the light intensity standard value L0. The monitoring module is used to detect the light intensity L and upload it to the control module. The monitoring module adjusts the power of the auxiliary light source to P, where P = (|L-L0|) / L0×P0×d, P0 and d are pre-input constants, L≤L0, when L>L0, the control module instructs L=L0;

[0054] When the light intensity is low, it means that an auxiliary light source needs to be introduced. At this time, the value of P = (|L-L0|) / L0×P0×d is greater than 0. When the control module instructs the auxiliary light source to adjust the power to P, the auxiliary light source is started when the light intensity is low.

[0055] When the light intensity is high, it means that there is no need to introduce auxiliary light source. At this time, the value of P = (|L-L0|) / L0×P0×d is equal to 0. When the control module instructs to adjust the power of the auxiliary light source to P, it is completed to instruct the auxiliary light source to be turned off when the light intensity is high;

[0056] By making the control module judge whether the light intensity is less than a threshold value, and instructing the auxiliary light source to start when the judgment result is yes, the auxiliary light source is turned off when the light intensity is high, thereby ensuring the lighting effect while reducing power consumption and heat.

[0057] Since it is necessary to take into account the smaller interior space of the vehicle as much as possible, the overall volume of the lighting lamp needs to be reduced, leaving less space for heat dissipation. When the LED light source 2 and the auxiliary light source are started at the same time, the heat dissipated is relatively large. While accommodating the poor heat dissipation caused by the smaller volume, it is ensured that the LED light source 2 and the auxiliary light source operate simultaneously. When the two light sources are irradiated at the same time, the effect of appropriately reducing the irradiation power of a single light source on the overall light intensity is limited. Therefore, it is necessary to appropriately reduce the luminous power of the LED light source 2, thereby reducing the overall heat power. To this end, after instructing the auxiliary light source to start, the control module instructs the LED light source 2 to reduce the power.

[0058] Specifically, the control module instructs the power of the plurality of LED light sources 2 to be corrected downward by A1 times, where A1 = P / P0×e, and e is a pre-input constant;

[0059] When P is larger, it means that the power of the auxiliary light source is larger and the heat is larger. It is necessary to appropriately reduce the power of the LED light source 2. At this time, the value of A1=P / P0×e is larger, and the downward correction amplitude is larger. When the power of the auxiliary light source is larger, the power of the LED light source 2 is corrected downward to reduce heat.

[0060] Since L≤L0, P≥0. When P is close to or equal to 0, it means that the auxiliary light source is not working, not releasing heat, or releasing little heat, and there is no need to significantly adjust the power of the LED light source 2 downward. At this time, the value of A1=P / P0×e is close to or equal to 0. When the power of the auxiliary light source is small or not working, the downward adjustment of the LED light source 2 is reduced, or no adjustment is performed.

[0061] By making the control module judge whether the light intensity is less than a threshold value, and instructing the auxiliary light source to start when the judgment result is yes, the auxiliary light source is turned off when the light intensity is high, thereby ensuring the lighting effect while reducing power consumption and heat.

[0062] The above description is merely a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as above in terms of a preferred embodiment, it is not intended to limit the present invention. Any person skilled in the art can, without departing from the scope of the technical solution of the present invention, make some changes or modifications to equivalent embodiments using the technical contents disclosed above. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. An automobile interior lighting lamp, characterized in that: The light emitting module comprises a light emitting module and a control module. The light emitting module comprises a plurality of LED light sources and lenses corresponding to the plurality of LED light sources. The plurality of lenses are arranged on the light paths of the corresponding LED light sources and are used to scatter the light emitted by the corresponding LED light sources. The lens comprises at least a light incident surface and a light exiting surface. The material and shape of the lens ensure that after light enters from the light incident surface, the light is refracted into different angles by the light incident surface and enters the interior of the lens, and then exits from the light exiting surface, and the light is refracted into different angles by the light exiting surface. The control module is electrically connected to a plurality of LED light sources and adjusts the emission wavelength. The light emitting module further includes an angle adjuster, which is used to adjust the distance between the emission surface of the LED light source and the incident surface of the lens. The control module is electrically connected to the angle adjuster, and the refraction direction of the light emitted by the LED light source after entering the lens is used as a reference direction. When the emission wavelength is less than a threshold, the control module instructs the angle adjuster to drive the LED light source to tilt away from the reference direction. When the emission wavelength is greater than the threshold, the control module instructs the angle adjuster to drive the LED light source to tilt toward the reference direction. The control module is pre-input with a standard wavelength λ0, and is used to adjust the light emission wavelength of the LED light source to λ. The angle adjuster is pre-input with a standard tilt angle, and the control module instructs the angle adjuster to tilt A° toward one side of the reference direction with the standard tilt angle as the origin, where A=(λ-λ0)\λ0×c, and c is a pre-input constant; The system further includes a monitoring module configured to detect light uniformity and upload the uniformity data to a control module, wherein the control module determines whether the uniformity data is less than a threshold value and instructs the angle adjuster to tilt toward a standard tilt angle if the determination result is negative. The control module is pre-input with a uniformity reference value J0. The monitoring module is used to detect the light uniformity and upload the uniformity data J to the control module. The control module determines whether the uniformity data J is greater than the uniformity reference value J0, and instructs the angle adjuster to tilt toward the standard tilt angle if the judgment result is no.

2. The automotive interior lighting lamp according to claim 1, characterized in that: It also includes auxiliary light sources corresponding to several LED light sources. The monitoring module is used to detect the light intensity and upload it to the control module. The control module determines whether the light intensity is less than a threshold and instructs the auxiliary light source to start if the judgment result is yes.

3. The automotive interior lighting lamp according to claim 2, characterized in that: The control module is pre-input with a light intensity standard value L0, the monitoring module is used to detect the light intensity L and upload it to the control module, and the monitoring module adjusts the power of the auxiliary light source to P, where P=(|L-L0|) / L0×P0×d, and P0 and d are pre-input constants.

4. The automotive interior lighting lamp according to claim 3, characterized in that: After instructing the auxiliary light source to start, the control module instructs the LED light source to reduce power.

5. The automotive interior lighting lamp according to claim 1, characterized in that: The control module instructs the power of the plurality of LED light sources to be corrected downward by A1 times, wherein A1=P / P0×e, and e is a pre-input constant.

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