Vehicles and their control methods

Abstract

This disclosure relates to a vehicle, the vehicle comprising: a seat; a sensor unit disposed on the seat and detecting whether a user is sitting on the seat; an illumination unit disposed inside the vehicle and including a plurality of light sources arranged at preset intervals; and a controller configured to determine the user's gaze direction based on the detection results of the sensor unit, and selectively control the plurality of light sources to distort the preset intervals based on the determined user's gaze direction.

Description

[0001] Cross-references to related applications

[0002] This application is based on and claims priority to Korean Patent Application No. 10-2019-0168202, filed with the Korean Intellectual Property Office on December 16, 2019, the disclosure of which is incorporated herein by reference. Technical Field

[0003] This disclosure relates to a method for controlling the interior space and interior lighting of a vehicle. Background Technology

[0004] A vehicle is a device that transports users or objects using driving force. Recently, the interior space of a vehicle has been considered not only as the space where users stay during transportation, but also as a place to provide comfort and enjoyment for users. Various types of lighting have been studied.

[0005] Existing research largely focuses on driver gaze management to prevent driver distraction. Furthermore, studies on the sense of space and openness inside vehicles primarily target the driver's seat and are limited to variations in layout patterns and lighting colors.

[0006] Furthermore, research on projection-based lighting has focused primarily on the sense of proportion or concealed structures. Research into the functional characteristics of projection-based lighting has not yet been conducted in detail.

[0007] Concept cars for the era of autonomous driving demonstrate an example of vehicle operation where users face each other and share the interior space. In this scenario, the user's gaze is not directed outwards, but rather in various directions, including the interior wall surfaces and the roof—the vehicle's roof. This diverse gaze direction means ensuring more space in each direction. Therefore, during autonomous driving, when a user's position is restricted to a particular seat due to movement limitations, the space where their gaze lingers for extended periods may require lighting. Summary of the Invention

[0008] Therefore, the purpose of this disclosure is to provide a vehicle and a method for controlling the vehicle, which provides a sense of openness to the user by adjusting the lights installed inside the vehicle to non-equidistant spacing.

[0009] Other aspects of this disclosure are set forth in part in the description which follows, and should be understood in part from the description, or may be learned by practicing this disclosure.

[0010] One aspect of this disclosure is to provide a vehicle, including: a seat; a sensor unit disposed on the seat and detecting whether a user is sitting on the seat; an illumination unit disposed inside the vehicle and including a plurality of light sources arranged at preset intervals; and a controller configured to determine the user's gaze direction based on the detection results of the sensor unit, and selectively control the plurality of light sources to distort the preset intervals based on the determined user's gaze direction.

[0011] The controller can be configured to reduce the spacing between multiple light sources relative to a user sitting in the seat.

[0012] The controller can select the light source based on the seat's angle and height.

[0013] The seat may include a first seat configured with a first viewing direction and a second seat configured with a second viewing direction. The controller may select multiple first light sources based on the first viewing direction and select multiple second light sources that are different from the multiple first light sources based on the second viewing direction.

[0014] The controller can control the colors of multiple first light sources to be different from the colors of multiple second light sources.

[0015] The lighting unit can be located on the vehicle's roof or headliner. The vehicle's roof or headliner can be installed in an embossed manner.

[0016] The lighting unit may be located on the vehicle's roof or headliner. The vehicle's roof or headliner may include two or more planes that are not parallel to each other.

[0017] Multiple first light sources and multiple second light sources are located on two or more planes that are different from each other. In other words, multiple first light sources can be located on a first plane in two or more planes, and multiple second light sources can be located on a second plane in two or more planes, the second plane being different from the first plane.

[0018] The lighting unit may include multiple recesses arranged at preset intervals, in which multiple light sources are inserted.

[0019] Another aspect of this disclosure is to provide a vehicle, including: a seat; a sensor unit disposed on the seat and detecting whether a user is sitting on the seat; a projector disposed inside the vehicle and projecting multiple light strings onto the roof or roof of the vehicle; and a controller configured to determine the user's gaze direction based on the detection results of the sensor unit, and to control the projector to distort a preset interval between the multiple light strings based on the determined gaze direction.

[0020] The controller can be configured to reduce the spacing between multiple optical strings relative to a user sitting in the seat.

[0021] Another aspect of this disclosure is to provide a vehicle, including: a seat; a sensor unit disposed on the seat and detecting whether a user is sitting in the seat; a display located on the roof or headliner of the vehicle and outputting light string images; and a controller configured to determine the user's gaze direction based on the detection results of the sensor unit, and control the display to reduce the spacing between light string images relative to the seated user.

[0022] Another aspect of this disclosure is to provide a control method for a vehicle including a seat and a lighting unit. The lighting unit is disposed on the ceiling inside the vehicle and has multiple light sources arranged at preset intervals. The method includes: detecting whether a user is sitting in the seat; determining the user's gaze direction based on the detection result of a sensor; and selectively controlling the multiple light sources to distort the preset intervals based on the determined gaze direction.

[0023] The control may include reducing the spacing between multiple light sources relative to the user sitting in the seat.

[0024] The control may include selecting the light source based on the seat's angle and height.

[0025] The seat may include a first seat configured with a first viewing direction and a second seat configured with a second viewing direction. The control may include selecting a plurality of first light sources based on the first viewing direction and selecting a plurality of second light sources different from the plurality of first light sources based on the second viewing direction. The control may also include individually controlling the plurality of first light sources and the plurality of second light sources.

[0026] The control may include controlling the colors of the multiple first light sources to be different from the colors of the multiple second light sources.

[0027] The lighting unit can be located on the vehicle's roof or headliner. The vehicle's roof or headliner can be installed in an embossed manner.

[0028] The lighting unit may include multiple recesses arranged at preset intervals. Multiple light sources may be inserted into the multiple recesses.

[0029] The illumination unit may further include a display configured to illuminate multiple light strings. The control may include controlling the display to reduce the spacing between the images of the multiple light strings. Attached Figure Description

[0030] These and / or other aspects of this disclosure will become apparent and more readily understood from the following description of embodiments in conjunction with the accompanying drawings.

[0031] Figure 1 This is a schematic diagram illustrating the vehicle and its interior according to this disclosure;

[0032] Figure 2This is a control block diagram illustrating a vehicle according to an embodiment of the present disclosure;

[0033] Figure 3 This is a diagram used to illustrate an embodiment of improving the sense of openness;

[0034] Figure 4 This is a diagram used to illustrate another embodiment of improving the sense of openness;

[0035] Figure 5 These are diagrams illustrating an embodiment of multiple users riding in a vehicle; and

[0036] Figure 6 This is a flowchart illustrating a method for controlling a vehicle. Detailed Implementation

[0037] Throughout this specification, the same reference numerals refer to the same elements. This disclosure does not describe all elements of the embodiments. Descriptions of elements well-known in the art or repeated in the embodiments are omitted. Terms used throughout this specification, such as “~part,” “~module,” “~component,” “~block,” etc., can be implemented in software and / or hardware, and multiple “~parts,” “~modules,” “~components,” or “~blocks” can be implemented in a single element, or a single “~part,” “~module,” “~component,” or “~block” can include multiple elements.

[0038] To further understand, the term "connection" or its derivatives refer to both direct and indirect connections. Indirect connections include connections via wireless communication networks.

[0039] It is further understood that when the terms “comprising” and / or “including” are used in this specification, they specify the presence of the said features, quantities, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, quantities, steps, operations, elements and / or components.

[0040] In the specification, it should be understood that when a component is referred to as being "above / below" another component, it can be located directly above / below the other component, or there may be one or more intermediate components.

[0041] Ordinal terms such as "first" and "second" can be used to explain various components, but these components are not limited by the terms. The term is only used to distinguish one component from another.

[0042] Unless the context clearly indicates otherwise, the singular forms “a,” “an,” and “the” are intended to include the plural forms as used herein.

[0043] The reference numerals used for method steps are for ease of explanation only and are not intended to limit the order of steps. Therefore, other writing orders may be implemented unless the context clearly indicates otherwise. The operating principles and embodiments of this disclosure are described below with reference to the accompanying drawings.

[0044] When an element or component of a controller is identified and described in the written description and / or claims as having the purpose of performing or implementing the said functions, steps, instruction sets, etc., the element or component may also be considered as being "configured" to do so.

[0045] Figure 1 This is a schematic diagram showing the vehicle 1 and the interior of the vehicle 1 according to the present disclosure.

[0046] Reference Figure 1 The vehicle 1 may include wheels 2 for moving the vehicle 1 and a body 3 that forms the exterior of the vehicle. The body 3 may form the exterior of the vehicle 1 while allowing the user to enter (i.e., ride in) the interior space of the vehicle 1.

[0047] The interior of vehicle 1 may include seat 10. According to this disclosure, vehicle 1 can be a vehicle that autonomously drives towards a destination without specific driver intervention. Therefore, vehicle 1 may not have a driver's seat for the user to look forward. In other words, seat 10 can be arranged inside vehicle 1 to allow the user various viewing directions.

[0048] According to embodiments of this disclosure, seat 10 may include a first seat 11 and a second seat 12. The number of seats 10 is not limited thereto. According to embodiments, the first seat 11 and the second seat 12 may be configured such that a user sitting in the seat has different lines of sight.

[0049] Seat 10 detects whether the user is sitting in the seat. Based on the detection result, vehicle 1 controls the lights set inside vehicle 1.

[0050] Figure 2 This is a control block diagram illustrating a vehicle according to an embodiment of the present disclosure.

[0051] Reference Figure 2 The vehicle 1 is equipped with a sensor unit 20 for detecting whether a user is seated, an illumination unit 100 installed inside the vehicle 1 and illuminating the interior of the vehicle 1, and a controller 50 for controlling the overall operation of the vehicle 1.

[0052] A sensor unit 20 is disposed on the seat 10 to detect whether a user is sitting on the seat 10. Specifically, the sensor unit 20 may include various sensors, such as a pressure sensor for detecting pressure, an infrared sensor for detecting distance, a camera for capturing images of the vehicle interior, etc. The sensor unit 20 converts the detected results into electrical signals. The electrical signals are transmitted to the controller 50. The controller 50 can determine whether the user is seated based on the electrical signals.

[0053] On the other hand, the sensor unit 20 does not necessarily have to be installed on the seat 10, as long as the sensor unit 20 can be installed inside the vehicle 1 and detect whether the user is seated.

[0054] The controller 50 may include a memory (not shown) for storing data about an algorithm or a program for reproducing the algorithm used to control the operation of components of the vehicle 1. The controller 50 may also include a processor (not shown) that uses the data stored in the memory to perform the aforementioned operations. In this case, the memory and processor may be implemented as separate chips. Alternatively, the memory and processor may be implemented as a single chip.

[0055] According to the embodiment, the controller 50 determines the user's gaze direction based on the detection results of the sensor unit 20. Specifically, when the user is sitting in the first seat 11, the controller 50 can determine that the user has a first gaze direction towards the rear of the vehicle 1. When the user is sitting in the second seat 12, the controller 50 can determine that the user has a second gaze direction towards the front of the vehicle 1.

[0056] The controller 50 controls the lighting unit 100 based on the determined line-of-sight. Specifically, the controller 50 controls the lighting unit 100 to provide the user with a feeling that the interior space is expanded (hereinafter referred to as a sense of spaciousness). With this configuration, the vehicle 1 can provide the user with comfort and stability during transportation, especially during long-distance transportation. A detailed example of the controller 50 controlling the lighting unit 100 is described below with reference to the other accompanying drawings.

[0057] The lighting unit 100 includes multiple light sources 110 and a projector 130. The lighting unit 100 provides a sense of spaciousness to the user under the control of the controller 50. The lighting unit 100 can be installed inside the vehicle 1.

[0058] Multiple light sources 110 can be arranged at predetermined intervals on the upper or side of the interior of the vehicle 1. The controller 50 provides a sense of openness by illuminating only a portion of the multiple light sources 110, depending on the user's line of sight.

[0059] The lighting unit 100 can provide various types of lighting shapes, such as point light, line light and area light, according to the shape of the multiple light sources 110.

[0060] For example, the lighting unit 100 may include a plurality of light sources 110 that illuminate point light. The plurality of light sources 110 configured as point light sources may be attached to the roof of the vehicle 1 in an embossed manner. As another example, the lighting unit 100 may include a plurality of light sources 110 configured as line light sources for illuminating light strings. Additionally, the lighting unit 100 may be configured as a display device and display an image of light strings. In other words, the lighting unit 100 can be installed in various types of devices as long as it can display point light, line light, and area light at predetermined intervals.

[0061] The projector 130 is installed inside the vehicle and can project multiple light strings onto the vehicle's roof or ceiling. Under the control of the controller 50, the projector 130 can simultaneously project the light strings while adjusting the intervals between them, so that the intervals between the light strings decrease as the distance from the user decreases.

[0062] In addition to the above configuration, vehicle 1 may further include various other configurations. In addition to the multiple light sources 110 and the projector 130, the lighting unit 100 may further include various other display devices that can improve the sense of spaciousness inside vehicle 1.

[0063] Figure 3 This is a diagram used to illustrate an embodiment of improving the sense of openness.

[0064] The lighting unit 100 selectively controls the illumination of multiple light sources 110 that emit light in the direction of the user's line of sight.

[0065] Reference Figure 3 The lighting unit 100 may include multiple light sources 111 to 119 that emit light strings. The controller 50 turns on a fourth light source 114 among the multiple light sources 111 to 119 and a first light source 111 located near the user. Additionally, the controller 50 turns on a sixth light source 116 such that the interval between it and the first light source 111 and the fourth light source 114 is smaller than the interval between them. The controller 50 turns on a seventh, eighth, and ninth light source 117, 118, and 119, respectively.

[0066] With this configuration, vehicle 1 can improve the sense of openness in the user's line of sight.

[0067] On the other hand, the lighting unit 100 may not need to be equipped with multiple line light sources that emit light strings. For example, the lighting unit 100 may be configured as a large display device and display light strings under the control of the controller 50.

[0068] Figure 4 This is a diagram used to illustrate another embodiment of improving the sense of openness.

[0069] Reference Figure 4According to an embodiment, the vehicle 1 may include an illumination section 100 disposed in an embossed form on the upper side of the interior of the vehicle 1. In each embossed section, a plurality of light sources 110 may be provided.

[0070] When the controller 50 determines that the user is sitting in seat 10, it determines the direction of their gaze. For example... Figure 4 As shown, the user's line of sight can be directed towards the front of vehicle 1.

[0071] The controller 50 can activate the first light source 111 based on the position and line of sight of the user seat 10. The controller 50 can exclude (i.e., not activate) three light sources in front of the first light source 111 (i.e., between the first light source 111 and the second light source 112) and activate the second light source 112. The controller 50 can exclude two light sources in front of the second light source 112 and activate the third light source 113. The controller 50 can exclude one light source in front of the third light source 113 and activate the fourth light source 114. The controller 50 can also activate the fifth light source 115 and the sixth light source 116 without excluding any light sources. In other words, the controller 50 is configured to reduce the spacing between the emitting light sources relative to the user seat 10.

[0072] The controller 50 can adjust or select the light source based on the angle and height of the seat 10. For example, when Figure 4 When the user lowers the height of the seat 10, the controller 50 does not turn on the first light source 111, but turns on the second light source 112 to the sixth light source 116, based on the changing line of sight as the height of the seat 10 decreases.

[0073] Figure 4 The disclosed relief forms are merely examples. For instance, the roof or canopy of vehicle 1 may be configured to include two or more non-parallel planes. The lighting units 100 may be arranged with a predetermined interval on the two or more non-parallel planes. As another example, the roof of vehicle 1 may be provided with recesses at predetermined intervals. The lighting units 100 may be configured to be inserted into each recess.

[0074] Figure 5 This is a diagram illustrating an embodiment of multiple users riding in a vehicle.

[0075] Reference Figure 5 In vehicle 1, two users can sit in the first seat 11 and the second seat 12, with each user seated on either side of vehicle 1. Depending on the position of the first seat 11 and the second seat 12, the users can have different directions of sight.

[0076] like Figure 5As shown, multiple light sources can be provided on different planes of the roof, which is arranged in an embossed form. In the following description, the multiple light sources are divided into multiple first light sources 110 and multiple second light sources 120. Figure 5 In the attached drawings, reference numerals 111, 112, 113, 114, 115, 116, 117, 118, and 119 belong to multiple first light sources 110. These multiple first light sources 110 point towards the rear of the vehicle. Figure 5 (To the right in the middle). Reference numerals 121, 122, 123, 124, 125, 126, 127, 128, and 129 belong to multiple second light sources 120. These multiple second light sources 120 point towards the front of the vehicle (…). Figure 5 (to the left in the middle).

[0077] Specifically, a plurality of second light sources 120 may be disposed on a surface facing forward of the vehicle 1 for use by a user sitting in the first seat 11. Additionally, a plurality of first light sources 110 may be disposed on a surface facing rearward of the vehicle 1 for use by a user sitting in the second seat 12.

[0078] When the controller 50 determines that the user is sitting on the first seat 11, it selects the light source to be emitted from among the multiple second light sources 120 based on the first line of sight and the height of the first seat 11. Specifically, the controller 50 activates the first to ninth light sources 121 to 129 among the multiple second light sources 120 based on the first line of sight. In other words, for the first seat 11, the controller 50 selects multiple second light sources 120 to emit light and reduces the spacing between the light sources.

[0079] When the controller 50 determines that the user is sitting on the second seat 12, it determines the light source to be emitted from among a plurality of first light sources 110 based on the second line of sight and the height of the second seat 12. Specifically, the controller 50 turns on the first to ninth light sources 111 to 119 among the plurality of first light sources 110 based on the second line of sight. In other words, for the second seat 12, the controller 50 selects a plurality of first light sources 110 to emit light and reduces the spacing between the light sources.

[0080] In the vehicle 1 according to this disclosure, the lighting pattern of the opposite user is prevented from being seen by users with different viewing directions, thereby preventing the reduction of the sense of spaciousness of the space due to light interference.

[0081] Similar to Figure 4 , Figure 5 The lighting unit 100 in the embodiment is not limited to an embossed form. For example, the lighting unit 100 may be manufactured in the form of inserting a light source into a small recess in the vehicle body 3. As another example, the lighting unit 100 may adjust the color and emission pattern of a plurality of first light sources 110 for a first viewing direction, and adjust the color and emission pattern of a plurality of second light sources 120 for a second viewing direction.

[0082] Figure 6 This is a flowchart illustrating a method for controlling a vehicle.

[0083] Reference Figure 6 The sensor unit 20 detects whether the user is sitting on the seat 10 (200).

[0084] The sensor unit 20 may include a pressure sensor or an infrared sensor. The sensor unit 20 can transmit the detected signals to the controller 50. As another example, the sensor unit 20 may include a camera that captures images of the interior of the vehicle 1 and transmits the captured images to the controller 50. The controller 50 can then determine the seat 10 in which the user is seated based on the image.

[0085] The controller 50 determines the user's gaze direction (210).

[0086] The controller 50 can determine the user's gaze direction based on the seat 10 where the user is seated. As another example, the controller 50 can also determine the user's gaze direction based on the height of the seat 10 and the detected size of the user. When the sensor unit 20 transmits images captured by the camera to the controller 50, the controller 50 can take into account the size and height of the user's eyes.

[0087] The controller 50 controls the lighting unit 100, causing the preset interval to be distorted (220).

[0088] For example, the lighting unit 100 may include a plurality of light sources 110 arranged at preset intervals. The controller 50 reduces the interval between the light sources 110 that emit light. In other words, the number of light sources emitting light in the area near the seat 10 is less than the number of light sources emitting light in the area away from the seat 10.

[0089] As another example, the lighting unit 100 may include a projector 130. The controller 50 controls the projector 130 such that the interval of the light stream illuminated by the projector 130 is reduced relative to the seat 10.

[0090] The controller 50 can change the pattern and color of the light emitted by the lighting unit 100 according to pre-stored user preferences.

[0091] With this configuration, vehicle 1 can provide users with a sense of spaciousness, and the spaciousness of vehicle 1's interior space can provide users with a sense of stability for long journeys. Furthermore, vehicle 1 can enhance personal satisfaction by controlling the lighting unit 100 in different ways according to various interior structures and individual preferences.

[0092] It is evident from the above that vehicles and their control methods can provide users with a sense of spaciousness by adjusting the lights installed inside the vehicle to be non-uniformly spaced.

[0093] One aspect of this disclosure is that it can provide a sense of stability to users who travel in the vehicle for long periods of time by making the interior space of the vehicle feel spacious.

[0094] Another aspect of this disclosure is that the lights can be applied to various interior structures of a vehicle by adjusting the lights according to the user's different line of sight, and the best effect can be provided to the user through individual light control.

Claims

1. A vehicle comprising: Seats; A sensor unit is installed on the seat and detects whether a user is sitting in the seat; The lighting unit is located inside the vehicle and includes multiple light sources arranged at preset intervals; as well as The controller determines the user's gaze direction based on the detection results of the sensor unit, and selectively controls the multiple light sources to distort the preset interval based on the determined gaze direction. The seats include a first seat configured to have a first line of sight and a second seat configured to have a second line of sight, and The controller selects a plurality of first light sources based on the first line of sight, and selects a plurality of second light sources that are different from the plurality of first light sources based on the second line of sight.

2. The vehicle according to claim 1, wherein, The controller is configured to reduce the spacing of the plurality of light sources relative to the user sitting in the seat.

3. The vehicle according to claim 1, wherein, The controller selects the light source based on the angle and height of the seat.

4. The vehicle according to claim 1, wherein, The controller controls the colors of the plurality of first light sources to be different from the colors of the plurality of second light sources.

5. The vehicle according to claim 1, wherein, The lighting unit is located on the roof or canopy of the vehicle, and The vehicle's roof or canopy is decorated in an embossed style.

6. The vehicle according to claim 1, wherein, The lighting unit is located on the roof or canopy of the vehicle, and The vehicle's roof or canopy comprises two or more planes that are not parallel to each other.

7. The vehicle according to claim 6, wherein, The plurality of first light sources and the plurality of second light sources are located on different planes in the two or more planes.

8. The vehicle according to claim 1, wherein, The lighting unit includes a plurality of grooves arranged at preset intervals, into which the plurality of light sources are inserted.

9. A vehicle comprising: Seats; A sensor unit is installed on the seat and detects whether a user is sitting in the seat; A projector is installed inside the vehicle and projects multiple beams of light onto the roof or top of the vehicle. as well as The controller determines the user's gaze direction based on the detection results of the sensor unit, and controls the projector to distort the preset interval between the multiple light strings based on the determined gaze direction. The seats include a first seat configured to have a first line of sight and a second seat configured to have a second line of sight, and The controller selects multiple first optical strings based on the first line of sight, and selects multiple second optical strings that are different from the multiple first optical strings based on the second line of sight.

10. The vehicle according to claim 9, wherein, The controller is configured to reduce the spacing between the plurality of optical strings relative to the user sitting in the seat.

11. A vehicle comprising: Seats; A sensor unit is installed on the seat and detects whether a user is sitting in the seat; A display, located on the roof or canopy of the vehicle, outputs a light string image; as well as The controller determines the user's gaze direction based on the detection results from the sensor unit, and controls the display to reduce the spacing between the light stream images relative to the seated user. The seats include a first seat configured to have a first line of sight and a second seat configured to have a second line of sight, and The controller selects multiple first light string images based on the first line of sight, and selects multiple second light string images that are different from the multiple first light string images based on the second line of sight.

12. A method for controlling a vehicle, the vehicle including a seat and a lighting unit, the lighting unit being disposed on the roof inside the vehicle and having a plurality of light sources arranged at predetermined intervals, the method comprising: Detect whether the user is sitting in the seat; The user's gaze direction is determined based on the detection results from the sensor unit; as well as Based on the determined line-of-sight direction, the multiple light sources are selectively controlled to distort the preset interval. The seats include a first seat configured to have a first line of sight and a second seat configured to have a second line of sight, and The controller selects multiple first light sources based on the first line of sight, and selects multiple second light sources that are different from the multiple first light sources based on the second line of sight.

13. The method according to claim 12, wherein, The control includes reducing the spacing of the plurality of light sources relative to the user sitting in the seat.

14. The method according to claim 12, wherein, The control includes selecting the light source based on the angle and height of the seat.

15. The method according to claim 12, wherein, The control includes controlling the colors of the plurality of first light sources to be different from the colors of the plurality of second light sources.

16. The method according to claim 12, wherein, The lighting unit is located on the roof or canopy of the vehicle, and The vehicle's roof or canopy is decorated in an embossed style.

17. The method according to claim 12, wherein, The lighting unit includes a plurality of grooves arranged at preset intervals, into which the plurality of light sources are inserted.

18. The method according to claim 12, wherein, The lighting unit further includes a display that illuminates multiple light strings, and The control includes controlling the display to reduce the spacing between the images of the plurality of light strings.

Images