CN220009611U

CN220009611U - Reading lamp and in-car lighting system

Info

Publication number: CN220009611U
Application number: CN202321707136.7U
Authority: CN
Inventors: 李鸣浩; 郑学良; 胡景风; 陈克; 刘彧林; 朱晶晶
Original assignee: Mind Electronics Appliance Co Ltd
Current assignee: Mind Electronics Appliance Co Ltd
Priority date: 2023-06-30
Filing date: 2023-06-30
Publication date: 2023-11-14
Anticipated expiration: 2033-06-30

Abstract

The utility model relates to the technical field of vehicle illumination, in particular to a reading lamp and an in-vehicle illumination system. The reading lamp is arranged on the vehicle roof and comprises a lamp shell and a plurality of illumination lamps, the illumination lamps are integrated in the lamp shell, each illumination lamp comprises a light emitting part, each illumination lamp can correspondingly illuminate an area, each illumination lamp comprises a cold light source and a warm light source, and light rays emitted by the cold light source and the warm light source of each illumination lamp can be projected to the corresponding area by the light emitting part. According to the reading lamp and the in-car lighting system, the problems that in order to achieve different lighting requirements of users, the cost of a lighting device is high, the operation of the users is complex, and the user experience is lacking are solved.

Description

Reading lamp and in-car lighting system

Technical Field

The utility model relates to the technical field of vehicle illumination, in particular to a reading lamp and an in-vehicle illumination system.

Background

With the continuous development of vehicle lighting technology, improving the user experience of an automobile has become a pursuing trend of cabin parts in the automobile.

At present, the function of the reading lamp of the automobile cabin is single, the reading function is mainly used, and the leg area of a user is mainly illuminated after the reading lamp is lightened, so that a basic reading illumination function is provided for the user.

However, in order to achieve different illumination demands of users, different types of illumination lamps are installed in various functional demand areas in a vehicle, for example, an operation safety belt illumination lamp, a console illumination lamp in a hollow platform area installation, a handrail illumination lamp in a middle handrail area installation are installed in a safety belt area, a vehicle door map pocket lamp is installed in a vehicle door area, a foot pit lamp is installed in a foot pit area, and the illumination lamps in corresponding areas can be turned on by users according to demands.

However, the above manner of realizing different lighting demands of the user not only has high cost of the lighting device, but also has complicated user operation and lacks user experience.

Disclosure of Invention

The utility model aims to provide a reading lamp and an in-car lighting system, so that the problems that in order to realize different lighting requirements of users, the cost of a lighting device is high, the operation of the users is complicated and the experience of the users is lacking in the existing in-car lighting lamp are solved.

According to a first aspect of the present utility model, there is provided a reading lamp, the reading lamp is disposed on a vehicle roof, the reading lamp includes a lamp housing and a plurality of illumination lamps, the plurality of illumination lamps are all integrated on the lamp housing, the lamp housing includes a light emitting portion, each of the illumination lamps can illuminate a region correspondingly, each of the illumination lamps includes a cold light source and a warm light source, and light emitted by the cold light source and the warm light source included in each of the illumination lamps can be projected to the corresponding region by the light emitting portion.

In any of the above technical solutions, further, each lighting fixture further includes a light-gathering strip, the cold light source and the warm light source are both disposed at a light-entering end of the light-gathering strip, and the light emitted by the cold light source and the warm light source can pass through the light-gathering strip and be emitted by a light-emitting end of the light-gathering strip.

In any of the above technical solutions, further, each lighting fixture further includes a light reflecting bowl, the light reflecting bowl is sleeved on the light focusing strip, the light focusing strip is disposed at a light inlet end of the light reflecting bowl, and light emitted from a light outlet end of the light focusing strip is emitted from the light outlet end of the light reflecting bowl after being reflected by the light reflecting bowl.

In any of the above technical solutions, further, a mask is disposed at the light emitting end of the reflector, and the mask is patterned.

In any of the above-mentioned technical solutions, further, the reading lamp further includes two circuit boards and two brackets, the plurality of lighting fixtures are divided into two groups, each bracket includes a plurality of through holes that fix respectively the plurality of lighting fixtures that each group includes, two the circuit boards set up respectively in the income light end of two groups of lighting fixtures, each the cold light source and the warm light source that the lighting fixtures include are all connected the circuit board, two the circuit board and two the bracket are all fixed in the inside of lamp body.

In any of the above-mentioned technical solutions, further, the reading lamp includes six illumination lamps and lanterns, the reading lamp is located one side of back row seat, and wherein, a set of illumination lamps and lanterns that is close to the door include reading illumination lamps and lanterns, door storing illumination lamps and lanterns and safety belt illumination lamps and lanterns, reading illumination lamps and lanterns can illuminate the seat region, door storing illumination lamps and lanterns can illuminate door storing region, safety belt illumination lamps and lanterns can illuminate the safety belt region, and a set of illumination lamps and lanterns that keep away from the door include foot nest illumination lamps and lanterns, well accuse illumination lamps and lanterns and central handrail illumination lamps and lanterns, foot nest illumination lamps and lanterns can illuminate foot nest region, well accuse illumination lamps and lanterns can illuminate well accuse region, central handrail illumination lamps and lanterns can illuminate central handrail region.

In any of the above technical solutions, further, when the door is closed, the door storage lighting device can illuminate the door storage area, and when the door is opened, the door storage lighting device can illuminate the footrest area.

A second aspect of the utility model provides an in-vehicle lighting system comprising a reading lamp as described above.

In any of the above technical solutions, further, the plurality of lighting fixtures includes a reading lighting fixture and other lighting fixtures, the in-vehicle lighting system further includes an identification camera and a controller, the identification camera is in communication connection with the controller, the controller is in communication connection with the plurality of lighting fixtures, the identification camera is set up in the roof to obtain action information of personnel in the vehicle, and the controller is configured to be able to receive the action information obtained by the identification camera and control an area corresponding to illumination of one of the other lighting fixtures.

In any of the above technical solutions, further, the identification camera obtains scene information in the vehicle, and the controller is configured to receive the scene information obtained by the identification camera, and control voltages of the cold light source and the warm light source of the lighting fixture that is currently being lighted, so as to change color temperature and brightness of the light source.

According to the reading lamp provided by the utility model, the reading lamp comprises the lamp shell and a plurality of lighting lamps, wherein the lighting lamps are integrated on the lamp shell, the lamp shell comprises the light emitting part, each lighting lamp can correspondingly illuminate one area, each lighting lamp comprises a cold light source and a warm light source, and light rays emitted by the cold light source and the warm light source of each lighting lamp can be projected to the corresponding area through the light emitting part.

The plurality of lighting fixtures are integrated in the lamp shell of the reading lamp, each lighting fixture can penetrate through the light emitting part of the lamp shell to illuminate one area correspondingly, a user can turn on the lighting fixtures in the corresponding area according to requirements, for example, when one of the lighting fixtures is turned on, a cold light source and a warm light source contained in the current lighting fixture are turned on, light rays emitted by the cold light source and the warm light source can be projected to the corresponding areas through the light emitting part, and the cold light source and the warm light source can be matched to project more suitable color temperature and brightness.

The plurality of lighting lamps are integrated in the lamp housing of the reading lamp, and a user can turn on one of the lighting lamps to correspondingly illuminate one functional area (for example, the head-up presses the switch of one of the lighting lamps) according to the requirements.

In order to make the above objects, features and advantages of the present utility model more comprehensible, preferred embodiments accompanied with figures are described in detail below.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 shows a schematic view of a structure of a reading lamp with a hidden lamp housing according to an embodiment of the utility model;

FIG. 2 shows a schematic view of another angle of FIG. 1;

FIG. 3 shows a schematic view of the hidden bracket of FIG. 1;

fig. 4 shows a schematic structural view of a reading lamp according to an embodiment of the present utility model;

fig. 5 shows a schematic view of illumination areas of six illumination fixtures according to an embodiment of the utility model.

Icon: 100-lighting fixtures; 101-a cold light source; 102-warm light source; 103-concentrating strips; 104-a reflector; 105-face mask; 200-a circuit board; 300-bracket; 500-lamp housing; 501-a light emitting part; 1001-reading lighting fixture; 1002-a socket lighting fixture; 1003-central control lighting fixture; 1004-a center handrail lighting fixture; 1005-door storage lighting fixtures; 1006-safety belt lighting fixtures.

Detailed Description

The following detailed description is provided to assist the reader in obtaining a thorough understanding of the methods, apparatus, and/or systems described herein. However, various changes, modifications, and equivalents of the methods, apparatuses, and/or systems described herein will be apparent after an understanding of the present disclosure. For example, the order of operations described herein is merely an example, and is not limited to the order set forth herein, but rather, obvious variations may be made upon an understanding of the present disclosure, other than operations that must occur in a specific order. In addition, descriptions of features known in the art may be omitted for the sake of clarity and conciseness.

The features described herein may be embodied in different forms and should not be construed as limited to the examples described herein. Rather, the examples described herein have been provided solely to illustrate some of the many possible ways of implementing the methods, devices, and/or systems described herein that will be apparent after understanding the present disclosure.

In the entire specification, when an element (such as a layer, region or substrate) is described as being "on", "connected to", "bonded to", "over" or "covering" another element, it may be directly "on", "connected to", "bonded to", "over" or "covering" another element or there may be one or more other elements interposed therebetween. In contrast, when an element is referred to as being "directly on," directly connected to, "or" directly coupled to, "another element, directly on," or "directly covering" the other element, there may be no other element intervening therebetween.

As used herein, the term "and/or" includes any one of the listed items of interest and any combination of any two or more.

Although terms such as "first," "second," and "third" may be used herein to describe various elements, components, regions, layers or sections, these elements, components, regions, layers or sections should not be limited by these terms. Rather, these terms are only used to distinguish one element, component, region, layer or section from another element, component, region, layer or section. Thus, a first member, component, region, layer or section discussed in examples described herein could also be termed a second member, component, region, layer or section without departing from the teachings of the examples.

For ease of description, spatially relative terms such as "above … …," "upper," "below … …," and "lower" may be used herein to describe one element's relationship to another element as illustrated in the figures. Such spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "upper" relative to another element would then be oriented "below" or "lower" relative to the other element. Thus, the term "above … …" includes both orientations "above … …" and "below … …" depending on the spatial orientation of the device. The device may also be otherwise positioned (e.g., rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

The terminology used herein is for the purpose of describing various examples only and is not intended to be limiting of the disclosure. Singular forms also are intended to include plural forms unless the context clearly indicates otherwise. The terms "comprises," "comprising," and "having" are intended to specify the presence of stated features, integers, operations, elements, and/or groups thereof, but do not preclude the presence or addition of one or more other features, integers, operations, elements, and/or groups thereof.

Variations from the shapes of the illustrations as a result, of manufacturing techniques and/or tolerances, are to be expected. Accordingly, the examples described herein are not limited to the particular shapes shown in the drawings, but include changes in shapes that occur during manufacture.

The features of the examples described herein may be combined in various ways that will be apparent upon an understanding of the present disclosure. Further, while the examples described herein have a variety of configurations, other configurations are possible as will be apparent after an understanding of the present disclosure.

The first aspect of the utility model provides a reading lamp, so that the problems of high cost, complicated operation and lack of user experience of a lighting device for realizing different lighting requirements of users in the existing vehicle interior lighting lamp are solved.

With the continuous development of vehicle lighting technology, improving the user experience of an automobile has become a pursuing trend of cabin parts in the automobile. At present, the function of the reading lamp of the automobile cabin is single, the reading function is mainly used, and the leg area of a user is mainly illuminated after the reading lamp is lightened, so that a basic reading illumination function is provided for the user.

In view of this, according to a first aspect of the present utility model, as shown in fig. 1 to 4, there is provided a reading lamp, which includes a lamp housing 500 and a plurality of lighting fixtures 100, wherein the plurality of lighting fixtures 100 are integrated in the lamp housing 500, the lamp housing 500 includes a light emitting portion 501, each lighting fixture 100 can illuminate a corresponding area, each lighting fixture 100 includes a cold light source 101 and a warm light source 102, and light emitted by the cold light source 101 and the warm light source 102 included in each lighting fixture 100 can be projected to the corresponding area by the light emitting portion 501.

The plurality of lighting fixtures 100 of the present utility model are integrated in the lamp housing 500 of the reading lamp, each lighting fixture 100 can penetrate the light emitting portion 501 of the lamp housing 500 to illuminate a corresponding area, a user can turn on the lighting fixtures 100 of the corresponding area according to the requirement, for example, when one of the lighting fixtures 100 is turned on, the cold light source 101 and the warm light source 102 included in the front lighting fixture 100 are turned on, the light emitted by the cold light source 101 and the warm light source 102 can be projected to the corresponding area by the light emitting portion 501, where the cooperation of the cold light source 101 and the warm light source 102 can project more suitable color temperature and brightness.

The plurality of lighting fixtures 100 are integrated in the lamp housing 500 of the reading lamp, and a user can turn on one of the lighting fixtures 100 to illuminate a functional area (for example, the head-up presses the switch of one of the lighting fixtures 100) according to the requirements. The specific structure, mounting manner and operation of the reading lamp will be described in detail hereinafter.

In the embodiment of the present utility model, as shown in fig. 2 and 3, the reading lamp may be installed at one side of the rear seat, wherein the reading lamp may include six illumination lamps 100, each three illumination lamps 100 are grouped and fixed by one bracket 300, and two brackets 300 are fixedly installed in the lamp housing 500, wherein specific installation positions of the reading lamp and specific installation angles of the six illumination lamps 100 may be set according to requirements, so long as the six illumination lamps 100 may respectively illuminate corresponding functional areas.

As an example, as shown in fig. 5 (here, for convenience and clarity of drawing reference, six lighting fixtures are translated to the upper left corner in fig. 5 for drawing reference), a group of lighting fixtures 100 near a vehicle door may include a reading lighting fixture 1001, a vehicle door storage lighting fixture 1005, and a seat belt lighting fixture 1006, the reading lighting fixture 1001 may illuminate a seat area, the vehicle door storage lighting fixture 1005 may illuminate a vehicle door storage area, the seat belt lighting fixture 1006 may illuminate a seat belt area, a group of lighting fixtures far from the vehicle door includes a foot pit lighting fixture 1002, a center control lighting fixture 1003, and a center armrest lighting fixture 1004, the foot pit lighting fixture 1002 may illuminate a foot pit area, the center control lighting fixture 1003 may illuminate a center control area, and the center armrest lighting fixture 1004 may illuminate a center armrest area.

Here, when the door is closed, the door storage lighting lamp 1005 of the present utility model can illuminate the door storage area (provide high-brightness lighting for the user to take the door storage box article out), and when the door is opened, the door storage lighting lamp 1005 can illuminate the foot area (welcome light supplement, provide lighting for the user to get on or off the vehicle at a position near the foot).

In the embodiment of the present utility model, as shown in fig. 3, each lighting fixture 100 further includes a light condensing strip, the cold light source 101 and the warm light source 102 are both disposed at the light incident end of the light condensing strip 103, and the light emitted by the cold light source 101 and the warm light source 102 can pass through the light condensing strip 103 and be emitted from the light emitting end of the light condensing strip 103, wherein the light condensing strip 103 is formed into two mutually communicated cylinders, and the cold light source 101 and the warm light source 102 are respectively disposed at the light incident ends of the two cylinders, and due to the communication between the middle parts of the two cylinders, the light of the cold light source 101 and the warm light source 102 can project more suitable color temperature and brightness.

Further, as shown in fig. 3, each lighting fixture 100 further includes a reflector 104, the reflector 104 is sleeved on the light-gathering strip 103, the light-gathering strip 103 is disposed at a light-entering end of the reflector, and the light emitted from the light-emitting end of the light-gathering strip 103 is reflected by the reflector 104 and then emitted from the light-emitting end of the reflector 104.

Further, a mask 105 is arranged at the light emitting end of the reflector, and the mask 105 is in a pattern shape.

Further, in the embodiment of the present utility model, as shown in fig. 1 and 2, the reading lamp further includes two circuit boards and two brackets 300, wherein the plurality of lighting fixtures 100 are divided into two groups, each bracket 300 includes a plurality of through holes, the plurality of through holes included in each bracket 300 respectively fix the plurality of lighting fixtures 100 included in each group, the two circuit boards 200 are respectively disposed at light entrance ends of the two groups of lighting fixtures 100, the cold light source 101 and the warm light source included in each lighting fixture 100 are both connected with the circuit boards 200, and the two circuit boards 200 and the two brackets 300 are both fixed inside the lamp housing 500. Here, the installation positions and functions of the six lighting fixtures 100 are described above.

According to a second aspect of the present utility model there is provided an in-vehicle lighting system comprising a reading lamp as described above.

In the embodiment of the utility model, the reading lamp can be combined with the intelligent cabin system, the user action information is obtained through the sensing system of the DMS and the OMS in the intelligent cabin, and the corresponding functional area is automatically lightened according to the user intention, so that the advantages of intelligence, low cost, high experience and the like are achieved.

Specifically, the in-vehicle lighting system comprises an identification camera and a controller, wherein the identification camera is in communication connection with the controller, the controller is in communication connection with a plurality of lighting fixtures, the identification camera is arranged on the roof so as to acquire action information of personnel in the vehicle, and the controller is arranged to be capable of receiving the action information acquired by the identification camera and controlling one of the other lighting fixtures to illuminate a corresponding area.

For example, after a user gets on a car, the reading illumination lamp 1001 is turned on in advance, when the user takes a middle handrail article, the identification camera obtains action information of personnel in the car, the controller controls the central handrail illumination lamp 1004 to illuminate the central handrail area, for example, when the user picks up a falling object, the identification camera obtains action information of personnel in the car, the controller controls the foot socket illumination lamp 1002 to illuminate the foot socket area, for example, when the user operates the middle control, the identification camera obtains action information of personnel in the car, the controller controls the middle control illumination lamp 1003 to illuminate the middle control area, for example, when the user operates the middle control to provide illumination with proper brightness, for example, when the user goes to the door storage box to take an object, the identification camera obtains action information of personnel in the car, the controller controls the door storage illumination lamp 1005 to illuminate the door storage area, for the user to take the door storage box to provide high-brightness illumination, in the door opening state, the controller controls the foot socket illumination lamp 1005 to illuminate the foot socket area, for the articles to provide illumination for the places near the user to the upper and lower car, and the rest illumination lamps need to be described when the controller is turned on.

Further, the recognition camera may also acquire scene information in the vehicle, and the controller is configured to receive the scene information acquired by the recognition camera and control voltages of the cold light source 101 and the warm light source of the lighting fixture that is currently lit, so as to change the color temperature and brightness of the light source.

For example, after a user gets on a car, the reading lighting lamp 1001 is turned on in advance, when the user reads a book, the light source presents medium brightness and cold light, when the user uses a mobile phone or a computer, the recognition camera can also acquire scene information in the car, the controller controls the voltages of the cold light source 101 and the warm light source of the lighting lamp which are lighted before, so that the light source presents low brightness and cold light (screen reading mode), when a pet is on the car, the recognition camera can also acquire scene information in the car, the controller controls the voltages of the cold light source 101 and the warm light source of the lighting lamp which are lighted before, so that the light source presents low brightness and warm light, the pet dysphoria (pet mode) is reduced, when the user wants to clean the car, all the lighting lamps can be turned on manually, and at the moment, the controller controls the light sources of all the lighting lamps to present high brightness, so that the corner cleaning is convenient.

Further, the user can also adjust specific color temperature and brightness (e.g., rotate the wrist counterclockwise or clockwise) through gestures in the current mode.

As shown in the following table, the brightness and color temperature of each region are defined so as to conform to the functional setting of the illumination of that region:

Finally, it should be noted that: the above examples are only specific embodiments of the present utility model, and are not intended to limit the scope of the present utility model, but it should be understood by those skilled in the art that the present utility model is not limited thereto, and that the present utility model is described in detail with reference to the foregoing examples: any person skilled in the art may modify or easily conceive of the technical solution described in the foregoing embodiments, or perform equivalent substitution of some of the technical features, while remaining within the technical scope of the present disclosure; such modifications, changes or substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model, and are intended to be included in the scope of the present utility model. Therefore, the protection scope of the utility model is subject to the protection scope of the claims.

Claims

1. A reading lamp is characterized in that the reading lamp is arranged on a vehicle roof and comprises a lamp housing (500) and a plurality of illumination lamps (100),

the plurality of lighting fixtures (100) are integrated in the lamp housing (500), the lamp housing (500) comprises a light emitting part (501),

each of the lighting fixtures (100) is capable of illuminating a region,

each of the lighting fixtures (100) comprises a cold light source (101) and a warm light source (102),

light rays emitted by the cold light source (101) and the warm light source (102) included in each lighting lamp (100) can be projected to a corresponding area by the light emitting part (501).

2. Reading lamp according to claim 1, characterized in that each of the lighting fixtures (100) further comprises a light collecting bar (103),

the cold light source (101) and the warm light source (102) are both arranged at the light inlet end of the light condensing strip (103),

the light rays emitted by the cold light source (101) and the warm light source (102) can pass through the light condensing strip (103) and are emitted by the light emitting end of the light condensing strip (103).

3. The reading lamp as claimed in claim 2, wherein each lighting fixture (100) further comprises a reflector (104), the reflector (104) is sleeved on the light-gathering strip (103), the light-gathering strip (103) is arranged at the light-incident end of the reflector (104),

the light emitted from the light emitting end of the light gathering strip (103) is reflected by the reflector (104) and then emitted from the light emitting end of the reflector (104).

4. A reading lamp as claimed in claim 3, characterized in that the light exit end of the reflector (104) is provided with a mask (105), the mask (105) being pattern-shaped.

5. The reading lamp as claimed in claim 1, characterized in that the reading lamp further comprises two circuit boards (200) and two holders (300),

the plurality of lighting fixtures (100) is divided into two groups,

each bracket (300) comprises a plurality of through holes, the plurality of through holes of each bracket (300) are respectively used for fixing a plurality of lighting fixtures (100) of each group,

the two circuit boards (200) are respectively arranged at the light inlet ends of the two groups of illumination lamps (100),

the cold light source (101) and the warm light source (102) included in each lighting fixture (100) are connected with the circuit board (200),

both the two circuit boards (200) and the two brackets (300) are fixed inside the lamp housing (500).

6. Reading lamp according to claim 5, characterized in that it comprises six illumination lamps (100),

the reading lamp is positioned at one side of the back row seat,

wherein the group of illumination lamps close to the car door comprises a reading illumination lamp (1001), a car door storage illumination lamp (1005) and a safety belt illumination lamp (1006),

the reading illumination lamp (1001) is capable of illuminating a seating area,

the door storage lighting fixture (1005) is capable of lighting a door storage area,

the belt lighting fixture (1006) is capable of illuminating a belt region,

a group of lighting fixtures remote from the vehicle door includes a footwell lighting fixture (1002), a center control lighting fixture (1003), and a center armrest lighting fixture (1004),

the socket lighting fixture (1002) is capable of illuminating a socket area,

the central control lighting fixture (1003) is capable of illuminating a central control area,

the center armrest lighting fixture (1004) is capable of illuminating a center armrest region.

7. The reading lamp of claim 6, wherein the door storage lighting fixture (1005) is capable of illuminating a door storage area when the door is closed and the door storage lighting fixture (1005) is capable of illuminating a footrest area when the door is open.

8. An in-vehicle lighting system, characterized in that it comprises a reading lamp as claimed in any one of claims 1-7.

9. The in-vehicle lighting system according to claim 8, wherein the plurality of lighting fixtures (100) includes a reading lighting fixture (1001) and a remaining lighting fixture,

the in-vehicle lighting system further comprises an identification camera and a controller, wherein the identification camera is in communication connection with the controller, the controller is in communication connection with the plurality of lighting fixtures (100),

the identification camera is arranged on the vehicle roof to acquire the action information of personnel in the vehicle,

the controller is configured to receive the motion information acquired by the identification camera and to control one (100) of the remaining lighting fixtures (100) to illuminate a corresponding area.

10. The in-vehicle lighting system of claim 9, wherein the identification camera acquires in-vehicle context information,

the controller is arranged to receive the context information acquired by the identification camera and to control the voltages of the cold light source (101) and the warm light source (102) of the currently illuminated lighting fixture (100) to change the color temperature and the brightness of the light source.