KR20240035328A - Lighting device - Google Patents

Abstract

The present invention relates to lighting devices. A lighting device according to an embodiment of the present invention includes a light guide plate configured to guide and diffuse light from a light source, and a garnish body including an illumination area to which the diffused light is irradiated. The light guide plate may be disposed at a preset angle with respect to the garnish body.

Description

Lighting device {LIGHTING DEVICE}

The present invention relates to lighting devices.

Recently, the application of mood lighting, which can improve interior aesthetics in addition to general lighting functions, has been expanding as interior lighting for vehicles. An example of mood lighting is providing lighting with a gradient effect on the interior garnish of the vehicle cabin.

In conventional gradient mood lighting, LEDs are mounted at the ends of the lighting device. When the primary ray from the LED passes through the light guide, light is emitted throughout the light guide, and the secondary ray is irradiated to the reflective surface (e.g., injection molded product, leather skin, etc.). The tertiary ray, in which the secondary ray is diffusely reflected by the surface roughness of the reflecting surface, is visible to the occupants' eyes by adjusting the amount of reflected light according to physical conditions such as the width, angle, and separation distance between the light guide and the reflecting surface, and creates a gradient. Lighting can be implemented.

However, in a member such as a high-gloss surface, it is difficult to cause diffuse reflection, light is absorbed, and the reflectance is very low, so there is a problem that the gradient effect cannot be realized with the conventional lighting method described above.

Publication of Patent No. 10-2010-0055260 (Publication Date: 2010.05.26)

The present invention was devised to solve the above-mentioned problems,

The aim is to provide a lighting device that can provide a unique indoor atmosphere through lighting with a gradient effect.

In addition, the present invention seeks to provide a lighting device that can ensure visibility of mood lighting in a daytime outdoor environment where lighting visibility is disadvantageous.

Additionally, the present invention seeks to provide a lighting device that can improve the emotional quality of a vehicle.

The purpose of the present invention is not limited to the purposes mentioned above, and other purposes not mentioned will be clearly understood by those skilled in the art (hereinafter referred to as 'ordinary skilled in the art') in the technical field to which the present invention pertains from the description below. It could be.

In order to achieve the purpose of the present invention as described above and perform the characteristic functions of the present invention described later, the features of the present invention are as follows.

A lighting device according to an embodiment of the present invention includes a light guide plate configured to guide and diffuse light from a light source, and a garnish body including an illumination area to which the diffused light is irradiated. The light guide plate may be disposed at a preset angle with respect to the garnish body.

According to the present invention, a lighting device that can provide a unique indoor atmosphere through lighting with a gradient effect is provided.

Additionally, according to the present invention, a lighting device is provided that can ensure visibility of mood lighting in a daytime outdoor environment where lighting visibility is disadvantageous.

Additionally, according to the present invention, a lighting device that can improve the emotional quality of a vehicle is provided.

According to the present invention, a lighting device with excellent space utilization is proposed.

The effects of the present invention are not limited to those described above, and other effects not mentioned will be clearly recognized by those skilled in the art from the description below.

1 is a schematic cross-sectional view of a lighting device according to an embodiment of the present invention;
Figure 2 is an exploded perspective view of a lighting device according to an embodiment of the present invention;
Figure 3 is an exploded perspective view of a lighting device according to an embodiment of the present invention, with the garnish body omitted;
Figure 4 is a cross-sectional view taken along line Q1-Q1 in Figure 1, showing a lighting device according to an embodiment of the present invention;
5 is a light guide plate of a lighting device according to an embodiment of the present invention;
Figure 6a is a lighting device according to another embodiment of the present invention,
Figure 6b is a light guide plate of a lighting device according to an embodiment of the present invention;
6C and 6D are lighting devices according to another embodiment of the present invention;
Figure 6e is a housing of a lighting device according to an embodiment of the present invention,
6F and 6G are lighting devices according to another embodiment of the present invention;
Figure 7a is a lighting device according to another embodiment of the present invention,
Figure 7b is a lighting device according to another embodiment of the present invention,
Figure 7c is a lighting device according to another embodiment of the present invention,
8 is an illumination area of a lighting device according to an embodiment of the present invention;
9 is a lighting area of a lighting device according to another embodiment of the present invention;
Figure 10 is a lighting device according to another embodiment of the present invention,
Figure 11 shows a lighting device according to another embodiment of the present invention.

The specific structural or functional descriptions presented in the embodiments of the present invention are merely illustrative for the purpose of explaining the embodiments according to the concept of the present invention, and the embodiments according to the concept of the present invention may be implemented in various forms. In addition, it should not be construed as being limited to the embodiments described in this specification, and should be understood to include all changes, equivalents, and substitutes included in the spirit and technical scope of the present invention.

Meanwhile, in the present invention, terms such as first and/or second may be used to describe various components, but the components are not limited to the above terms. The above terms are used only for the purpose of distinguishing one component from other components, for example, within the scope of the rights according to the concept of the present invention, the first component may be named the second component, Similarly, the second component may also be referred to as the first component.

When a component is said to be “connected” or “connected” to another component, it should be understood that it may be directly connected or connected to the other component, but that other components may exist in between. something to do. On the other hand, when it is mentioned that a component is “directly connected” or “in direct contact” with another component, it should be understood that there are no other components in between. Other expressions to describe the relationship between components, such as “between” and “immediately between” or “adjacent to” and “directly adjacent to”, should be interpreted similarly.

Like reference numerals refer to like elements throughout the specification. Meanwhile, the terms used in this specification are for describing embodiments and are not intended to limit the present invention. In this specification, singular forms also include plural forms unless specifically stated in the context. As used in the specification, “comprises” and/or “comprising” means that a referenced component, step, operation and/or element is present in one or more other components, steps, operations and/or elements. or does not rule out addition.

Hereinafter, the present invention will be described in detail with reference to the attached drawings.

Mood lighting visually conveys vehicle status information while driving and emotionally affects the brain waves of passengers, providing physical relaxation and psychological and mental stability.

In conventional gradient mood lighting, when the relatively very high brightness of visible light from the sun in a vehicle running during the day overlaps with the reflected light for mood lighting, the reflected light is not visible to the occupants' eyes, and the mood lighting loses its function. do. To solve this problem, increasing the maximum brightness of LEDs used in mood lighting, increasing the number of LEDs, applying a low reflectance member, adding a shielding structure, etc. may be considered. However, these methods may cause deterioration of the mood lighting controller, increase material costs, reduce the luminance of indirect lighting, or have design limitations, making it difficult to provide an ultimate solution.

Additionally, there are design limitations in conventional gradient mood lighting. For example, the degree of freedom in design is low due to shape restrictions due to the relationship between lighting and reflective surfaces, differences in color and/or luminance depending on the material and color of the reflective surface, and mold modifications required when modifying lighting. Furthermore, it is impossible to implement gradient indirect lighting in the black high-gloss material applied inside the cabin due to the nature of the painted surface treatment.

Accordingly, the present invention seeks to solve the above problems and provide a lighting device that can provide the gradient effect of indirect lighting while using a direct lighting method.

As shown in FIG. 1, the lighting device according to the present invention includes a light guide plate 20 that guides and diffuses the light L from the light source 10 and an illumination area A1 to which the diffused light is irradiated. Includes.

This lighting device may be an interior lighting device of a vehicle. In one implementation, the member is the garnish body 30. Garnish is a decorative member attached to the interior or exterior of a vehicle and can improve aesthetics. For example, garnishes can be attached to a vehicle's instrument panel, crash pad, doors, console, and various trims. Typically, garnishes have a wood grain film or painted surface to create patterns on the exterior. The garnish body 30, which forms the appearance of this garnish, can be mounted inside the vehicle for interior lighting. For example, the garnish body 30 may be mounted on a vehicle glove box, instrument panel, door, console, etc., but is not limited to these.

With additional reference to Figures 2 and 3, a lighting device according to one embodiment of the present invention is shown. The light guide plate 20 is accommodated in the housing 40, and the housing 40 is mounted on the garnish body 30. Light sources 10 are mounted on both longitudinal ends of the light guide plate 20, respectively. The operation of the light source 10 may be controlled by a controller 12 that is communicatively connected to the light source 10. The light L from the light source 10 may move through the light guide plate 20 and be irradiated to the illumination area A1 formed on the garnish body 30 . The lighting area A1 may be formed on the surface of the garnish body 30, and the light of the lighting area A1 may be recognized from the outside, that is, from the vehicle interior.

More specifically, as shown in FIG. 4 , the light guide plate 20 may be mounted on the garnish body 30 through the housing 40 . The housing 40 may be mounted on the garnish body 30, and the light guide plate 20 may be accommodated in the space 42 formed within the housing 40. There is no limitation to the shape of the housing 40, but for example, the housing 40 may have a generally semicircular shape. Additionally, the housing 40 may be composed of a reflector.

Light L passing through the light guide plate 20 is output from the light source 10. In one implementation, the light source 10 may be a light-emitting diode (LED), or may be a reg, green and blue (RGB) LED. The light L may emit light while being guided through the light guide plate 20, and may be irradiated to the lighting area A1 through the garnish body 30.

According to one embodiment of the present invention, the light guide plate 20 is arranged to have a preset angle θ with the garnish body 30. In other words, the light guide plate 20 and the garnish body 30 may be arranged not parallel to each other. When the light guide plate 20 is disposed to have an inclination with respect to the garnish body 30, the distance between the first side (S1 side) of the light guide plate 20 and the garnish body 30 is the second side (S2) of the light guide plate 20. ) and the distance between the garnish body 30. Therefore, in both cases, the path of light L from the light guide plate 20 to the illumination area A1 is not the same, and the path of light irradiated from the first side S1 of the light guide plate 20 is not the same as the path of light L from the light guide plate 20 to the second side. It becomes longer than the path of light irradiated in (S2). In this way, the intensity of the light L emitted to the illumination area A1 is not the same and there is a difference along the illumination area A1, so the light may be emitted relatively darkly in an area emitted relatively far away. As a result, a gradient effect can be obtained in which the light emitted from the lighting area A1 becomes darker or brighter from one side to the other. In the illustrated implementation, the brightness of light in the illumination area A1 may decrease from S2 toward S1. In this way, according to the present invention, the gradient effect of the indirect lighting method can be obtained while using the direct lighting method.

The light guide plate 20 may include a mounting surface 22 and an inclined surface 24. The mounting surface 22 is mounted on the inner surface of the housing 40. The inclined surface 24 is disposed to face the mounting surface 22 and is inclined with respect to the garnish body 30. In the illustrated embodiment, the mounting surface 22 and the inclined surface 24 are shown as being parallel to each other, but the present invention is not limited thereto, and it is sufficient for the inclined surface 24 to be inclined with respect to the garnish body 30.

At least one end of the light guide plate 20, that is, at least one of the first side S1 and the second side S2, may include a curved surface 26. The curved surface 26 can spread and diverge the light emitted from the light source 10, thereby increasing light efficiency and reinforcing the gradient effect. That is, the inclined surface 24 of the light guide plate 20 is formed to be generally flat, so that light is directly irradiated, but the light may spread and radiate subtly from the curved surface 26. In the illustrated embodiment, the position of the curved surface 26 on the light guide plate 20 may mean the portion of the inclined surface 24 disposed furthest from the garnish body 30. That is, in the drawing, it can be explained that the curved surface 26 is formed on the first side (S1) of the inclined surface 24.

Light that is gently spread and emitted in this way can be emitted to the lighting area (A1) through a relatively long optical path. Accordingly, a gradient effect in which the lighting becomes darker as it moves from one side of the lighting area A1 to the other side (from S2 to S1 in the drawing) can be achieved. That is, according to this embodiment, a direct lighting method in which light L is directly irradiated to the garnish body 30 is used, providing the advantage of showing the gradient effect exhibited by the indirect lighting method. Ultimately, this kind of gradient effect can be used to create an atmosphere through mood lighting in the car cabin.

Referring to Figure 5, according to some implementations of the present invention, light guide plate 20 may include an optical structure 28. For example, the optical structure 28 may be formed on the lower side of the light guide plate 20, or may be formed on the side furthest from the garnish body 30. In some implementations, optical structure 28 may have an inwardly recessed shape. The optical structure 28 can control the amount of diffusely reflected light emitted from the light guide plate 20. Specifically, the amount of diffusely reflected light can be adjusted by adjusting the size of the optical structure 28 in the light guide plate 20. In one implementation, the amount of light can be controlled by adjusting the position of the optical structure 28 on the light guide plate 20. The optical structure 28 may be formed to be eccentric with respect to the center line C of the light guide plate 20 to enable control of the amount of light for each section.

As shown in FIG. 6A, the light L generated from the light source 10 is diffusely reflected through the light guide plate 20, and the diffusely reflected light is diffused into the lighting area A1 formed on the garnish body 30. It can be done. At this time, the amount of light diffused into the garnish body 30 increases when the size of the optical structure 28 of the light guide plate 20 is large, and decreases when the size is small. Additionally, luminance changes depending on the position of the optical structure 28. Therefore, according to the present invention, when designing a lighting device, it can be possible to design while controlling the amount and/or brightness of light diffused into the garnish body 30. Therefore, design freedom is increased and at the same time, luminance degradation due to light loss can be prevented, so indirect lighting can be appropriately achieved even in bright surroundings such as during the day.

According to some implementations of the present invention, the size of the optical structure 28 may be configured to vary along the longitudinal direction of the light guide plate 20. For example, the optical structure 28 may be formed on the light guide plate 20 so that the size of the optical structure 28 is small from the longitudinal center of the light guide plate 20 to the end. Additionally, in one embodiment, the optical structure 28 may not be formed at a longitudinal end of the light guide plate 20, that is, a portion of the light guide plate 20 that is close to the light source 10. The design of the optical structure 28 allows the light emitted from the longitudinal center of the illumination area A1 to gradually become weaker as it moves toward the ends, thereby maximizing the gradient effect.

According to some embodiments of the present invention, the size of the optical structure 28 may be configured to change along the width direction (or S1-S2 direction) of the light guide plate 20. The size of the optical structure 28 on the bright area S2 may be larger than the size of the optical structure 28 on the dark area S1. Referring to FIG. 6B , in some implementations, the pitch z of the optical structure 28 on the first row or bright region S2 side and the pitch z of the optical structure 28 on the second row or dark region S1 side are The pitch (z) may be different. For example, the pitch z of the optical structure 28 on the dark area S1 may be greater than the pitch z of the optical structure 28 on the bright area S2. The design of the optical structure 28 allows the light to gradually become weaker from the bright area S2 to the dark area S1 of the lighting area A1, thereby maximizing the gradient effect.

According to some implementations of the invention, the light guide plate 20 includes positioning ribs 29. The positioning ribs 29 may regulate the position of the light guide plate 20 in the housing 40 . In order to obtain the gradient effect of the curved shape, it is important that the light guide plate 20 maintains uniform luminance overall. The position ribs 29 of the light guide plate 20 prevent the light guide plate 20 from being distorted, thereby maintaining uniform luminance along both the longitudinal and width directions of the lighting area A1.

Referring to FIGS. 6C and 6D, position ribs 29 may be provided on both sides of the light guide plate 20 in the width direction (or S1-S2 direction). These locating ribs 29 can regulate forward and backward movement within the housing 40 . If an irregular protrusion is provided on the light guide plate 20, light bounces from that part, making it difficult to achieve uniform luminance. According to the present invention, the positioning ribs 29 are formed on both sides or before and after the light guide plate 20 in the width direction, and the position ribs 29 are formed on at least part or all of the light guide plate 20 along the longitudinal direction, so that light is transmitted. It can prevent splashing or hot spots.

Referring to Figure 6E, according to some implementations of the present invention, housing 40 includes support ribs 41. A plurality of support ribs 41 may be provided in the housing 40 at regular intervals. For example, the support rib 41 may protrude toward the space 42 of the housing 40. The shape of the support rib 41 is not limited to this, and may have any shape as long as it can be operated in conjunction with the position rib 29.

As shown in FIGS. 6F and 6G, the support rib 41 fixes the positioning rib 29 or is mated with the positioning rib 29 to allow vertical movement of the light guide plate 20 within the housing 40. It can be limited. The support rib 41 can prevent the main light source direction from changing when the light guide plate 20 is twisted.

Referring back to FIG. 4 , according to some embodiments of the present invention, the housing 40 may be mounted so as to occupy the garnish body 30 corresponding to a portion of the lighting area A1 of the garnish body 30. To be more specific, the housing 40 may not have a size corresponding to the entire lighting area A1 of the garnish body 30, and a non-mounted area N1 may be formed on the inner surface of the garnish body 30. That is, since the non-mounted area (N1) excluding the mounting area where the housing 40 is installed is formed in the lighting area (A1), the light irradiated from the light source 10 passes through a relatively distant optical path to the lighting area (A1). It can be emitted as When the housing 40 is mounted in this way, the light irradiated from the light source 10 can set a different optical path to the lighting area A1 due to the inclined arrangement structure of the light guide plate 20 described above, and as a result, the lighting area A1 The light can be emitted to darken across (A1).

As shown in FIG. 6A , according to another embodiment of the present invention, the housing 40 may be configured to occupy the garnish body 30 corresponding to the entire lighting area A1 of the garnish body 30. That is, the path of light can be easily controlled by changing the shape of the housing 40.

According to some implementations of the present invention, the housing 40 may include a protrusion 46. The protrusion 46 may be formed on a portion of the housing 40 that contacts the light guide plate 20. The protrusion 46 protrudes from the housing 40, and one or more protrusions 46 may be provided. When the light guide plate 20 is mounted on the housing 40, the housing 40 and the light guide plate 20 are spaced apart by the protrusion 46, so that light efficiency through the light guide plate 20 may be increased.

The protrusion 46 can regulate the position of the light guide plate 20 so that the arrangement direction of the light guide plate 20 does not change while bringing the housing 40 and the light guide plate 20 into line contact to minimize the contact area. The protrusion 46 arranges the light guide plate 20, which may have a small width and a long length (for example, 1 meter or more), at a preset angle, and maintains the posture of the light guide plate 20 even while the vehicle is running. It can be positioned. In addition, the protrusion 46 also provides the effect of preventing noise (buzz, squeak, and rattle) caused by friction.

Referring to FIG. 7A , the housing 40 may include a reflective surface 44 . The reflective surface 44 may induce scattering of light emitted from the light guide plate 20. The reflective surface 44 can induce scattering of light by reflecting it so that the path of light from the light guide plate 20 is changed to be directed upward. Thereby, the gradient effect can be strengthened.

In one implementation, the reflective surface 44 may be formed in a step shape on the side wall within the housing 40. Of course, the shape of the reflecting surface 44 is not limited to a step shape, and any shape that can reflect light and guide it upward can be applied. For example, the reflective surface 44 is formed in a stepped shape, but some surfaces may be formed as curved surfaces.

As shown in FIGS. 7B and 7C, the reflective surface 44 may be configured to have a change in curvature in addition to a step shape. In order to reduce physical luminance according to the phase difference between the light guide plate 20 and the lighting area A1, the lighting area A1 and the degree of the gradient effect can be controlled by adjusting the curvature of the reflective surface 44.

According to some implementations of the present invention, the garnish body 30 includes a plurality of holes 32. The size of the hole 32 may be minute.

As shown in FIG. 8, holes 32 through which light passes may be arranged in a plurality of columns and rows in the lighting area A1 of the garnish body 30. Previously, the holes 32 were arranged to have the same size, but in this implementation, the sizes of the holes 32 may be arranged differently for each row. Of course, the holes 32 may be arranged in different sizes for each row depending on the arrangement type.

For example, the holes 32 may be formed to become smaller in size from the first row (the uppermost row in the drawing) to the next row (downwards in the drawing). In this drawing, the hole 32 with the largest size arranged in the first row is placed on the far right (S2 side) of the lighting area A1, and the hole 32 with the smallest size arranged in the bottom row is illuminated. It can be placed on the leftmost side (S1 side) of the area (A1). That is, the size of the hole 32 can be formed to become smaller in the S1 direction. With this size and shape, the gradation effect can be maximized because the lighting area (A1) on the left side in the illustrated embodiment radiates darkest.

In some implementations, the holes 32 may vary in size for each row or column, but the pitches P1 and P2 (collectively, P) of the holes 32 arranged in the same row may be formed to be the same. The pitches P1 of the holes 32 arranged in the first row R1 are the same, the pitches P2 of the holes 32 arranged in the second row R2 are the same, and the pitches P2 of the holes 32 arranged in the second row R2 are the same, and the pitches P1 of the holes 32 arranged in the first row R1 are the same. Their pitches may be formed to be the same. In this way, if the pitch is the same for each row, the holes 32 in other rows can be arranged between the holes 32 in each row.

As shown in FIG. 9 , according to some embodiments of the present invention, the holes 32 are positioned in the illuminated area A1 from one side to the other (S2 (bright area) to S1 (dark area) in the illustrated embodiment. ) is formed so that its size (Φd) is small. In addition, according to an embodiment of the present invention, the holes 32 are arranged so that the pitch P between the holes 32 increases from one side to the other side in the illumination area A1 (from S2 to S1 in the illustrated embodiment). can be formed. In addition, the holes 32 may be configured to decrease in size as they move toward the longitudinal end of the garnish body 30, and/or the pitch P between the holes 32 may be adjusted in the longitudinal direction of the garnish body 30. It may be configured to increase towards the end. In one implementation, the hole 32 may be formed through laser processing.

The thickness of the garnish body 30 does not necessarily mean 0 in the hole formed in the garnish body 30, and the hole shape is formed only in part of the garnish body 30, providing a hidden lighting effect in which the hole is not visible from the exterior. It may be possible (not shown).

Referring to FIG. 10 , according to some implementations of the present invention, the garnish body 30 may include an optical pattern 34. The optical pattern 34 may be formed on a surface in direct contact with the housing 40. By forming each optic of the optic pattern 34 to be of different sizes, the gradient effect can be enhanced using the degree of light scattering. For example, as in the illustrated embodiment, the size of the depression of the optical pattern 34 formed in the garnish body 30 may be formed to become smaller in the direction from S2 to S1.

Referring to FIG. 11, according to some embodiments of the present invention, the thickness of the garnish body 30 is configured to change. A change in the thickness of the garnish body 30 may induce a difference in light transmittance, thereby reinforcing the gradient effect. As in the illustrated embodiment, the thickness (X1) of the garnish body 30 on the bright side may be made smaller than the thickness (X2) of the garnish body 30 on the dark side. Additionally, the garnish body 30 may be formed to increase in thickness from the light side to the dark side.

Referring back to FIGS. 2 and 3, according to the present invention, the lighting device may further include a screen member 50. The screen member 50 can reduce the amount of light from the light guide plate 20 to implement a gradient effect at the end of the lighting device.

According to an embodiment of the present invention, the lighting device may include an inner lens 60. The inner lenses 60 may be disposed in front of the light source 10, respectively. The inner lens 60 protects the light source 10 and can change the main light source direction of the light source 10.

According to the present invention, a lighting device having a gradient effect is provided by adjusting at least one of the air gap between the garnish body 30 and the light guide plate 20, the size of the hole 32, and the pitch (P) between the holes 32. can be provided. As the air gap becomes smaller, the size of the hole 32 becomes larger, and the pitch P between the holes 32 becomes smaller, the amount of light increases and the lighting becomes brighter. Conversely, the larger the air gap, the smaller the size of the hole 32, and the larger the pitch P between the holes 32, the smaller the amount of light and the darker the lighting. Therefore, the air gap on the S2 side, which becomes brighter in the gradient illumination, can be made small, the size of the holes 32 can be made large, and the pitch P between the holes 32 can be made small. On the other hand, the air gap on the dark S1 side can be made large, the size of the holes 32 can be made small, and the pitch P between the holes 32 can be made large.

The lighting device according to the present invention can secure lighting functionality by improving the problem of impossible daytime visibility of indirect gradient lighting.

The lighting device according to the present invention enables uniform gradient lighting on members with any surface. In addition to materials such as black high-gloss surfaces, it can be used without restrictions in various methods such as general painting, half mirror method, ion vacuum deposition, and insert film.

According to the present invention, when observed with the naked eye, luminance value and quality higher than that of existing indirect gradient lighting can be secured.

The lighting device according to the present invention is easy to design because it has a simplified structure without being affected by the shape, material, color, etc. of the reflecting surface member.

The lighting device according to the present invention can change the size, pitch, width, length, etc. of the hole without modifying the mold, enabling investment cost savings.

In addition, the lighting device according to the present invention can solve the problem of flashing of the outside mirror when the vehicle is driven at night through a gradient effect.

The present invention described above is not limited to the above-described embodiments and the accompanying drawings, and various substitutions, modifications, and changes are possible without departing from the technical spirit of the present invention as is known in the technical field to which the present invention pertains. It will be clear to those who have the knowledge of.

10: light source 12: controller
20: light guide plate 22: mounting surface
24: slope 26: curved surface
28: Optical structure 29: Positioning rib
30: Garnish body 32: Hole
34: Optical pattern 40: Housing
41: support rib 42: space
44: reflective surface 46: protrusion
50: Screen member 60: Inner lens

Claims (20)

a light guide plate configured to guide and diffuse light from a light source;
Comprising a garnish body including an illumination area to which the diffused light is irradiated,
A lighting device wherein the light guide plate is disposed at a preset angle with respect to the garnish body. The lighting device according to claim 1, further comprising a housing that accommodates the light guide plate and is connected to the garnish body, wherein the housing is comprised of a reflector. The lighting device of claim 1, wherein the light guide plate includes an optical structure for controlling the amount of diffusely reflected light. The lighting device of claim 3, wherein the optical structure is arranged eccentrically with respect to the center line of the light guide plate. The lighting device of claim 3, wherein the optical structure is configured to change at least one of size and pitch along the light guide plate. In claim 3,
A lighting apparatus further comprising a housing accommodating the light guide plate and connected to the garnish body, the light guide plate including a positioning rib protruding from the light guide plate, and the housing including a support rib operable in association with the positioning rib. Device. The lighting device according to claim 1, wherein the light guide plate includes a curved surface. The lighting device according to claim 7, wherein the curved surface is formed on the light guide plate at a portion where the distance between the garnish body and the light guide plate is the largest. The lighting device according to claim 1, wherein the lighting area of the garnish body includes a plurality of holes formed along a plurality of columns and rows. The method of claim 9, wherein the size of the plurality of holes is configured to decrease from a position where the distance between the garnish body and the light guide plate is the smallest toward a position where the distance between the garnish body and the light guide plate is the largest; or
A lighting device wherein the pitch between the plurality of holes is configured to increase from a position where the distance between the garnish body and the light guide plate is the smallest toward a position where the distance between the garnish body and the light guide plate is the largest. The method of claim 9, wherein the plurality of holes are configured to decrease in size toward a longitudinal end of the garnish body; or
A lighting device wherein the plurality of holes are configured to increase in pitch toward a longitudinal end of the garnish body. The lighting device according to claim 1, wherein the garnish body includes an optical pattern, and the optical pattern is formed on at least a portion of a surface in contact with the light guide plate. The lighting device of claim 12, wherein the size of the optical pattern is configured to decrease from an area where the garnish body overlaps the light guide plate to an area where the garnish body does not overlap the light guide plate. The lighting device according to claim 1, wherein the light source is disposed at a longitudinal end of the light guide plate. The lighting device of claim 14, wherein a screen member is mounted on a longitudinal end of the light guide plate to cover the light guide plate. The lighting device according to claim 1, wherein an inner lens configured to protect the light source is disposed on a front surface of the light source. The lighting device according to claim 2, wherein the housing includes a step-shaped reflective surface. The lighting device according to claim 2, wherein the housing includes at least one protrusion protruding toward a space of the housing. The lighting device according to claim 2, wherein the housing is positioned to overlap at least part or all of the lighting area of the garnish body. A vehicle comprising a lighting device according to claim 1.

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