KR20180065611A - Lighting apparatus for vehicle - Google Patents

Abstract

According to the present invention, a lighting apparatus for a vehicle can evenly disperse a light amount of a light source without a loss with a light guide member having a reflection surface regularly reflecting light, and uses a bulb light source to reduce energy consumed for the light source to improve fuel efficiency of a vehicle. Moreover, manufacturing costs can be reduced.

Description

[0001] LIGHTING APPARATUS FOR VEHICLE [0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention [0002] The present invention relates to a vehicle lighting apparatus, and more particularly, to a vehicle lighting apparatus having improved light reflection efficiency generated by a light source.

Generally, an equalizing device used in a vehicle includes a light source for generating light and a reflecting member for refracting the light generated from the light source forward, a lens for refracting light reflected from the reflecting member, consist of.

The direction of the light is changed according to the direction of the light emitted from the light source, the angle of the reflecting surface of the reflecting member, and the refractive index of the lens, and accordingly, the amount of light generated from the light source is changed into the lens.

Conventional equalizing apparatuses use only light emitted from a light source to reflect light reflected by a reflecting member and use the light incident on the lens as effective light. However, when the light is reflected by the reflecting member but is not incident on the lens, There is a problem that the efficiency of the light generated from the light source is lowered because the amount of light which is not reflected but disappears is large.

In addition, in the conventional equalizing apparatus, the light amount of light incident on the lens may concentrate at the center. A light guide member may be used to uniformly disperse the light generated from the light source. However, the conventional light guide member utilizes the total reflection phenomenon of light, and light having a critical angle or more is lost.

One aspect of the present invention provides a vehicle lighting apparatus capable of uniformly dispersing a light amount of a light source without loss.

A vehicle lighting apparatus according to an aspect of the present invention includes a reflecting member disposed in front of a light source and reflecting the light generated from the light source toward the rear, a reflecting member disposed behind the light source, And a second light guiding member disposed between the light source and the first light guiding member and dividing the light dispersed by the first light guiding member.

The light source, the reflection member, the first light guiding member, and the second light guiding member may be arranged so that the center thereof lies on a straight line, and the reflection member includes a paraboloid so as to reflect the light of the light source in parallel. can do.

The first light guiding member includes a first reflecting surface for dispersing the light reflected by the reflecting member in the radial direction along the first light guiding member and a second reflecting surface for dispersing the light dispersed in the first reflecting surface toward the second light guiding member And a second reflecting surface reflecting the reflected light.

Wherein the first reflection surface is formed in a center of the first light guiding member and can be formed of a cone having an inclined surface of 45 degrees, the second reflection surface is formed in an annular shape concentric with the primary reflection surface, And may include an inclined surface facing inward of the direction.

Wherein the inclined surface of the primary reflecting surface may have a radius and a height of a bottom surface equal to or longer than a radius of the reflecting member, and the inclined surface of the secondary reflecting surface has a width and a height, Lt; / RTI >

Wherein the second light guiding member includes a third reflection surface for dividing the light reflected from the second reflection surface of the first light guiding member and dividing the light radially outward and radially inward along the second light guiding member, And two quadratic reflection surfaces for reflecting the light split from the car reflective surface toward the first light guiding member.

The third reflection surface may be formed in a ring shape concentric with the secondary reflection surface and having the same radius, and may include a first inclined surface of 45 degrees toward the radially inward side and a second inclined surface of 45 degrees toward the radially outer side, Wherein the two fourth reflection surfaces are formed in an annular shape concentric with the third reflection surface, one is provided on the radially inner side of the third reflection surface and the other is provided on the radially outer side of the third reflection surface And may include a 45-degree inclined surface facing the first inclined surface and the second inclined surface of the third reflective surface, respectively.

The second light guiding member may include two lenses for spectrally reflecting the light reflected from the two quadratic reflection surfaces, and the first light guiding member may include two lenses for forwardly reflecting the light split by the two lenses Light emitting surfaces.

Each of the two lenses may be formed of two annular rings which are concentric with the two associated quadric reflection surfaces and have the same radius, and may include a concave lens or an inverted Fresnel lens so that incident light may be spectrally separated, Each of the two light exiting surfaces may be formed in two annular shapes concentric with the associated two lenses and having the same radius and may include a paraboloid so as to reflect the light split by the two lenses in parallel, And the second light guiding member may be disposed so that the two lenses are located at the focal positions of the two light exiting surfaces.

The width and height of the bottom surface of the first inclined surface and the second inclined surface of the tertiary reflecting surface may be at least half the width of the secondary reflecting surface, The width and height of the third inclined surface may be greater than the height of the first inclined surface and the second inclined surface of the third reflective surface.

The width of the bottom surface of the third inclined surface may be greater than the width of the bottom surface of the first inclined surface, , Each of the two quadratic reflecting surfaces may be formed to have a length equal to or greater than the height of the first inclined surface or the second inclined surface of the tertiary reflecting surface to which the width and height of the bottom surface are related.

Each of the two lenses may be formed to have a width equal to or larger than the width of the bottom surface of the corresponding two of the fourth reflection surfaces.

A vehicle lighting apparatus according to an embodiment of the present invention includes a light source, a reflection member that reflects the light of the light source in parallel backward, a primary member that disperses and refracts collimated light of the reflection member in a radially outward direction, A second reflection surface for deflecting the light reflected from the primary reflection surface forward, a third reflection surface for dispersing and refracting the light reflected from the secondary reflection surface radially inward and radially outward, A fourth reflection surface for refracting the light reflected from the third reflection surface backward, a lens for spectrally reflecting the light reflected from the fourth reflection surface, and a light output surface for reflecting the light, which is spectrally separated from the lens, can do.

A vehicle lighting apparatus according to an embodiment of the present invention includes a reflective member disposed in front of a light source and reflecting the light generated from the light source backward, a first light guiding member disposed behind the light source, And a second light guiding member disposed between the first light guiding members, wherein the first light guiding member is configured to reflect the light guided by the first light guiding member and the second light guiding member forward Emitting surface.

The first light guiding member may be configured to radially disperse the light reflected by the reflecting member and vertically incident, and the second light guiding member may reflect the light dispersed by the first light guiding member in the radial direction Inner and radially outwardly.

The vehicle lighting apparatus according to the present invention can uniformly disperse the light amount of the light source without loss by using the light guide member including the reflecting surface regularly reflecting the light.

Further, the vehicle equalizing apparatus of the present invention can reduce the amount of energy consumed in the light source, thereby improving the fuel efficiency of the vehicle and reducing the manufacturing cost.

1 is a perspective view of a vehicle lighting apparatus according to an embodiment of the present invention,
Fig. 2 is a cross-sectional view of the automotive equalizer shown in Fig. 1,
FIG. 3 is a perspective view showing a vehicle lighting apparatus according to another embodiment of the present invention,
Fig. 4 is a sectional view of the automotive equalizer shown in Fig. 3,
5 is a cross-sectional view of a vehicle lighting apparatus according to another embodiment of the present invention.

The embodiments described herein and the configurations shown in the drawings are preferred embodiments of the disclosed invention, and various modifications may be made at the time of filing of the present application to replace the embodiments and drawings of the present specification.

In addition, the same reference numerals or signs shown in the respective figures of the present specification indicate components or components performing substantially the same function.

Also, the terms used herein are used to illustrate the embodiments and are not intended to limit and / or limit the disclosed invention. The singular expressions include plural expressions unless the context clearly dictates otherwise. In this specification, terms such as " comprise ", " comprise ", or "have ", when used in this specification, designate the presence of stated features, integers, Steps, operations, components, parts, or combinations thereof, whether or not explicitly described herein, whether in the art,

It is also to be understood that terms including ordinals such as " first ", "second ", and the like used herein may be used to describe various elements, but the elements are not limited by the terms, It is used only for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, the first component may be referred to as a second component, and similarly, the second component may also be referred to as a first component. The term "and / or" includes any combination of a plurality of related listed items or any of a plurality of related listed items.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a perspective view showing a vehicle lighting apparatus according to an embodiment of the present invention, and FIG. 2 is a sectional view of the vehicle lighting apparatus shown in FIG.

1 and 2, a vehicle lighting apparatus may include a light source 10, a reflective member 20, a first light guiding member 30, and a second light guiding member 40. [

Specifically, the light source 10 may be a bulb lamp. The light source of the vehicle lighting apparatus may be selected in accordance with the intention of the designer. However, since the vehicle lighting apparatus according to the present invention can use the bulb lamp instead of the LED lamp, the PCB or the heat sink necessary for the LED lamp is required The cost can be reduced, and the fuel consumption of the vehicle can be improved.

The reflective member 20 may be disposed in front of the light source 10. The light source 10 can be covered by the reflective member 20 so that it can not be viewed directly from the front and the light generated by the light source 10 can be reflected backward by the reflective member 20. [ The reflecting member 20 may include a parabolic surface 21 so that the light of the light source 10 can be reflected in parallel and the light source 10 may be disposed at the focal position of the parabolic surface 21. [ By this arrangement, the reflective member 20 can form a collimated light in which the traveling direction of the light is parallel.

The first light guiding member 30 and the second light guiding member 40 may be arranged to spread light generated from the light source 10 widely and forwardly. The first light guiding member 30 and the second light guiding member 40 may be disposed behind the light source 10. The second light guiding member 40 and the second light guiding member 40 may be arranged so that the center of the light guiding member 40 is positioned on the straight line 60. The light guiding member 40, May be disposed between the light source (10) and the first light guiding member (30).

The first light guiding member 30 can disperse the light 50 reflected by the reflecting member 20. The first light guiding member 30 includes a first reflecting surface 31 configured to radially disperse the light 50 reflected by the reflecting member 20 along the first light guiding member 30, And a secondary reflecting surface 32 for reflecting the scattered light 51 toward the second light guiding member 40 in the slope 31. [

The primary reflecting surface 31 may be formed in the center of the first light guiding member 30 and may be formed of a conical having an inclined surface of 45 degrees to vertically reflect the light 50 reflected by the reflecting member 20 . The secondary reflecting surface 32 may be formed in an annular shape concentric with the primary reflecting surface 31 and may include a radially inward facing inclined surface. The inclined plane of the secondary reflecting surface 32 is also inclined with respect to the primary reflecting surface 31 and the second guiding surface 31 in order to vertically reflect the light 51 reflected by the primary reflecting surface 31 toward the second light guiding member 40. [ And may be formed at an inclined angle of 45 degrees toward the member 40.

The inclined surface of the primary reflecting surface 31 is formed so that the radius 62 and the height 63 of the bottom surface are equal to the radius of the reflecting member 20 so that the light 50 reflected by the reflecting member 20 can be perfectly reflected. (61). The inclined surface of the secondary reflecting surface 32 is formed so that the width 64 of the bottom surface and the height 65 are perpendicular to the primary reflecting surface 31 so that the light 51 reflected by the primary reflecting surface 31 can be perfectly reflected. May have a length equal to or greater than the height (63) of the base (31).

The second light guiding member 40 may receive the dispersed light from the first light guiding member 30 to be a light source in the form of a ring. The second light guiding member 40 can receive the light 52 reflected by the second reflecting surface 32 of the first light guiding member 30 and reflect the light 52 radially inward along the second light guiding member 40 And a fourth reflecting surface 44 for reflecting the light 53 reflected by the third reflecting surface 43 back toward the first light guiding member 30 .

The tertiary reflecting surface 43 may be formed in an annular shape having the same radius 60 and the same radius as the secondary reflecting surface 32 and may include a radially inward facing inclined surface. The inclined surface of the tertiary reflective surface 43 may be formed as an inclined surface of 45 degrees so as to vertically reflect the light 52 reflected by the secondary reflective surface 32 radially inward along the second light guiding member 140 have.

The inclined surface of the tertiary reflecting surface 43 is formed so that the width 66 of the bottom surface and the height 67 are perpendicular to the secondary reflecting surface 32 The width 64 of each of the first and second wafers W1, W2, W3, W4, and W4.

The fourth reflecting surface 44 may be formed in a ring shape concentric with the tertiary reflecting surface 43 and may be formed in the third reflecting surface 43 so as to be provided radially inward of the tertiary reflecting surface 43. [ Which has a smaller radius (73) than the radius (72) of the electrode (72). The inclined surface may be inclined at 45 degrees so as to vertically reflect the light 53 reflected by the tertiary reflecting surface 43 toward the first light guiding member 30. [

The inclined surface of the fourth reflecting surface 44 is formed so that the width 69 of the bottom surface and the height 68 are perpendicular to the tertiary reflecting surface 43 Of the height 67 of the first substrate W1.

The rear surface of the second light guiding member 40 may include a ring-shaped lens 46 for using the parallel light reflected from the fourth reflection surface 44 as a linear light source. The lens 46 may include a concave lens or a reverse Fresnel lens to allow the light 54 reflected by the quartic reflective surface 44 to be dispersed. That is, the end face of the lens 43 may be formed as a cross section of a concave lens or an inverted Fresnel lens. A Fresnel lens is a condensing lens, whereas an inverse Fresnel lens is a spectral lens that reverses the principle of a Fresnel lens.

The lens 46 may be formed in a ring shape having the same radius 60 and the same radius as the fourth reflection surface 44. The width 70 of the lens 46 may also be formed so that the fourth reflection surface 44 corresponds to the width 69 of the bottom surface.

The front surface of the first light guiding member 30 may include a light exiting surface 33 that reflects the light spectrally emitted from the lens 46 of the second light guiding member 40 forward. The light exiting surface 33 may be formed in a ring shape having the same radius 60 as the lens 46 and having the same radius as the lens 46 and may include a parabolic surface so as to reflect the light, can do. The second light guiding member 40 may be disposed such that the lens 46 is positioned at the focal point of the light exiting surface 33 of the first light guiding member 30. [ That is, the second light guiding member 40 may be disposed apart from the first light guiding member 30 by the focal length 74 of the light exiting surface 33.

The light 55 reflected by the light output surface 33 of the first light guiding member 30 can be output as parallel light toward the front side. That is, the light generated from the light source 10 is guided by the first light guiding member 30 and the second light guiding member 40 and is uniformly dispersed, and can be emitted forward through the light exiting surface 33. Since the width 71 of the light exiting surface 33 can be designed as wide as required, the light from the light source 10, which is a point light source, can be used as a surface light source for emitting parallel light.

The first reflection surface 31, the second reflection surface 32, the third reflection surface 43, the fourth reflection surface 44 and the light exit surface 33 are formed of a first light guiding member 30 made of a transparent material, 2 light-guiding member 40 by vapor-depositing a reflective material such as aluminum. The first light guiding member 30 and the second light guiding member 40 are fixed to the first reflecting surface 31, the second reflecting surface 32, the third reflecting surface 43 and the fourth reflecting surface 44 The light is regularly reflected, so that the loss of light can be remarkably reduced as compared with the conventional light guiding member which guides light through total reflection.

Fig. 3 is a perspective view showing a vehicle equalizing apparatus according to another embodiment of the present invention, and Fig. 4 is a cross-sectional view of the vehicle lighting apparatus shown in Fig.

3 and 4, the vehicle lighting apparatus may include a light source 10, a reflective member 20, a first light guiding member 130, and a second light guiding member 140. [ The light source 10 and the reflection member 20 are the same as those of the light source and the reflection member of the embodiment shown in FIGS. 1 and 2, and a detailed description thereof will be omitted.

The first light guiding member 130 and the second light guiding member 140 may be arranged to spread the light generated from the light source 10 widely and uniformly and forwardly. The first light guiding member 130 and the second light guiding member 140 may be disposed behind the light source 10. The second light guiding member 140 and the second light guiding member 140 may be disposed such that the center of the light guiding member 140 is positioned on the straight line 160, May be disposed between the light source (10) and the first light guiding member (130).

The first light guiding member 130 may disperse the light 150 reflected from the reflective member 20. [ The first light guiding member 130 includes a first reflecting surface 131 configured to disperse the light 150 reflected from the reflecting member 20 in the radial direction along the first light guiding member 130, And a secondary reflecting surface 132 reflecting the scattered light 151 toward the second light guiding member 140 on the slope 131. [

The primary reflecting surface 131 may be formed in the center of the first light guiding member 130 and may be formed of a conical having an inclined surface of 45 degrees to vertically reflect the light 150 reflected by the reflecting member 20 . The secondary reflecting surface 132 may be formed in an annular shape concentric with the primary reflecting surface 131 and may include a radially inward facing inclined surface. The inclined plane of the secondary reflecting surface 132 may be inclined with respect to the primary reflecting surface 131 and the second light guiding surface 131 in order to vertically reflect the light 151 reflected by the primary reflecting surface 131 toward the second light guiding member 140. [ May be formed at an angle of 45 degrees toward the member (140).

The inclined surface of the primary reflecting surface 131 is formed so that the radius 162 and the height 163 of the bottom surface are equal to the radius of the reflecting member 20 so that the light 150 reflected by the reflecting member 20 can be perfectly reflected. (161) or more. The inclined surface of the secondary reflecting surface 132 is formed so that the width 164 of the bottom surface and the height 165 of the inclined surface of the secondary reflecting surface 132 are perpendicular to the primary reflecting surface 131, May have a length equal to or greater than the height 163 of the protrusion 131.

The second light guiding member 140 may receive the dispersed light from the first light guiding member 130 to be a light source in the form of a ring. The second light guiding member 140 receives the light 152 reflected from the second reflecting surface 132 of the first light guiding member 130 and is divided radially inward and outward along the second light guiding member 140 And a third reflection surface 143 configured to reflect light 153 and 154 reflected by the third reflection surface 143 toward the first light guiding member 130. [ (144, 145).

The third reflecting surface 143 may be formed in a ring shape having the same radius as the secondary reflecting surface 132 and having the same radius 177. The third reflecting surface 143 may include a first inclined surface 141 facing the radially inward side, And a second sloping surface 142 facing the first sloping surface 142. The first inclined surface 141 and the second inclined surface 142 of the tertiary reflecting surface 143 are formed so that the light 152 reflected by the secondary reflecting surface 132 is radially inward or outward along the second light guiding member 140 And may be formed at an inclination of 45 degrees to vertically reflect radially outward.

The third reflecting surface 143 is formed so that the width 166 of the bottom surface is equal to or greater than the width 164 of the second reflecting surface 132 so that the light 152 reflected by the secondary reflecting surface 132 can be perfectly reflected. As shown in Fig. In addition, the height 167 of the tertiary reflection surface 143 may be formed to be half of the width 166 of the bottom surface. The width and height of the first inclined surface 141 and the second inclined surface 142 of the tertiary reflecting surface 143 are set to be equal to or more than half the width 164 of the secondary reflecting surface 132 As shown in Fig.

Since the light 153 and 154 reflected from the tertiary reflecting surface 143 are divided and reflected by the light 153 reflected radially inward and the light 154 reflected radially outward, And 145 may be formed in the radially inner side and the radially outer side of the tertiary reflective surface 143, respectively. The fourth reflecting surface 144 positioned radially inward of the third reflecting surface 143 is concentric with the tertiary reflecting surface 143 and is larger than the radius 177 of the tertiary reflecting surface 143 And may be formed in an annular shape having a small radius 176. [ The fourth reflecting surface 145 located radially outward of the tertiary reflecting surface 143 is concentric with the tertiary reflecting surface 143 and the radius 177 of the tertiary reflecting surface 143, Which has a large radius 178 as compared with the case of FIG.

The fourth reflection surfaces 144 and 145 are formed on the third reflection surface 143 so as to vertically reflect the light 153 and 154 reflected from the third reflection surface 143 toward the first light guiding member 130. [ And may include a 45-degree inclined surface facing the first inclined surface 141 and the second inclined surface 142. The inclined surfaces of the fourth-order reflective surfaces 144 and 145 are formed to have widths 169 and 171 of the bottom surface and heights 168 and 170 of the bottom surface so that the light 153 and 154 reflected by the tertiary reflective surface 143 can be perfectly reflected. May be formed to have a length greater than or equal to the height 167 of the first inclined surface 141 and the second inclined surface 142 of the tertiary reflecting surface 143. [

In the rear surface of the second light guiding member 140, annular lenses 146 and 147 are included to use the parallel light reflected from the fourth reflection surfaces 144 and 145 as a linear light source. can do. The lenses 146 and 147 may include a concave lens or a reverse Fresnel lens so as to allow the light 155 and 156 reflected by the fourth reflection surfaces 144 and 145 to be dispersed. That is, the cross sections of the lenses 146 and 147 may be formed as a cross section of a concave lens or an inverted Fresnel lens.

Two lenses 146 and 147 may be formed radially inwardly and radially outwardly to correspond to the two fourth reflection surfaces 144 and 145, respectively. The lens 146 disposed radially inwardly may be formed in an annular shape having the same radius 176 and concentric with the associated fourth order reflective surface 144 and the lens 147 disposed radially outward The radius 178 may be formed in the same annular shape as the concentric circle 160 and the associated quadratic reflecting surface 145.

The width 172 of the lens 146 disposed radially inwardly may be formed to have a length greater than the width 169 of the bottom surface of the associated fourth order reflective surface 144, The width 173 of the fourth reflecting surface 147 may be formed to have a length longer than the width 171 of the bottom surface of the associated fourth reflecting surface 145.

The front surface of the first light guiding member 130 may include light exiting surfaces 133 and 134 for forwardly reflecting the light that is diffracted by the lenses 146 and 147 of the second light guiding member 140. Two lenses 146 and 147 are formed radially inward and radially outward so that two light exit surfaces 133 and 134 are formed radially inward and radially outward so as to correspond to the respective lenses 146 and 147 .

The radially outwardly disposed exit surface 133 may be formed in an annular shape having a radius 176 that is concentric with the associated lens 146 and the radially outwardly disposed exit surface 134 may be associated It may be formed in a ring shape having the same radius as the lens 147 and the radius 178. [ In addition, each of the light exit surfaces 133 and 134 may include parabolic surfaces so that the light beams can be reflected in parallel by the lenses 146 and 147 in a forward direction. The widths 174 and 175 of the respective light exit surfaces 133 and 134 may be determined by the width or refractive index of the associated lenses 146 and 147, respectively.

The second light guiding member 140 may be disposed so that the lenses 146 and 147 are positioned at the focal positions of the light exiting surfaces 133 and 134 of the first light guiding member 130. [ That is, the second light guiding member 140 may be spaced apart from the first light guiding member 130 by the focal length 179 of the light exiting surfaces 133 and 134.

The light 158 reflected by the light exiting surfaces 133 and 134 of the first light guiding member 130 may be emitted as parallel light toward the front side. That is, the light generated from the light source 10 is guided by the first light guiding member 130 and the second light guiding member 140 and is evenly dispersed and can be emitted forward through the light exiting surfaces 133 and 134. Since the widths 174 and 175 of the light emitting surfaces 133 and 134 can be designed as wide as required, the light from the light source 10 which is a point light source can be used as a surface light source for emitting parallel light.

The first reflection surface 131, the second reflection surface 132, the third reflection surface 143, the fourth reflection surfaces 144 and 145 and the light exit surfaces 133 and 134 are made of a transparent first light guiding member 130 and the second light guiding member 140 by vapor-depositing a reflective material such as aluminum. The first light guiding member 130 and the second light guiding member 140 are fixed to the first reflection surface 131, the second reflection surface 132, the third reflection surface 143 and the fourth reflection surface 144, The loss of light can be remarkably reduced as compared with the conventional light guiding member which guides light through total reflection.

5 is a cross-sectional view of a vehicle lighting apparatus according to another embodiment of the present invention.

5, the vehicle lighting apparatus may include a light source 10, a reflective member 20, a first light guiding member 130, and a second light guiding member 240. [ The light source 10, the reflective member 20, and the first light guiding member 130 are the same as or similar to the light source, the reflective member, and the first light guiding member of the embodiment shown in FIGS. 3 and 4, It is omitted.

The second light guiding member 240 may receive the dispersed light from the first light guiding member 130 to be a light source in the form of a ring. The second light guiding member 240 receives the light 152 reflected from the secondary reflecting surface 132 of the first light guiding member 130 and is divided radially inward and outward along the second light guiding member 240 And a third reflection surface 243 configured to reflect the light 253 reflected from the third reflection surface 243 and the reflected light 253 and 254 toward the first light reflection member 130. [ (244, 245).

The third reflecting surface 243 may be formed in a ring shape having the same radius as the secondary reflecting surface 132 and the radius 274 and may include a first inclined surface 241 facing the radially inward side and a second inclined surface 241 facing the radially outer side And a second sloping surface 242 facing the first sloping surface 242. The first inclined plane 241 and the second inclined plane 242 of the tertiary reflective surface 243 are formed so that the light 152 reflected by the secondary reflective surface 132 is radially inward or outward along the second light guiding member 240 And may be formed at an inclination of 45 degrees to vertically reflect radially outward.

The width of the bottom surface 263 of the tertiary reflecting surface 243 is set such that the width 164 of the secondary reflecting surface 132 and the width of the reflecting surface 132 of the secondary reflecting surface 132 are different from each other so that the light 152 reflected by the secondary reflecting surface 132 can be completely reflected. May be formed to have the same length. The width 262 and the height 265 of the bottom surface of the second inclined surface 242 of the third reflective surface 243 are formed to be larger than the width 261 and the height 264 of the bottom surface of the first inclined surface 241 .

The light 253 reflected by the first inclined plane 241 of the third reflective plane 243 is concentrated radially inward while the light is concentrated and reflected by the second inclined plane 242 of the third reflective plane 342 The light 254 propagates radially outward and the light is dispersed. By making the widths of the first inclined face 241 and the second inclined face 242 of the tertiary reflective surface 243 different from each other, the light 255, 256 reflected by the fourth reflective surfaces 244, The light amounts can be made equal to each other.

The light beams 253 and 254 reflected from the tertiary reflecting surface 243 are divided and reflected by the radially inwardly reflected light 253 and the radially outwardly reflected light 254, And 245 may be formed radially inward and radially outward of the tertiary reflection surface 243. The fourth reflection surface 244 located radially inward of the third reflection surface 243 is concentric with the third reflection surface 243 and is larger in radius than the radius 274 of the third reflection surface 243 And may be formed in an annular shape having a small radius 273. The fourth reflection surface 245 located radially outward of the third reflection surface 243 is concentric with the third reflection surface 243 and the radius 274 of the third reflection surface 243, Which has a large radius 275 as compared with the case of FIG.

The fourth reflection surfaces 244 and 245 are provided on the third reflection surface 243 so as to vertically reflect the light 153 and 154 reflected from the third reflection surface 143 toward the first light guiding member 130. [ And may include an inclined surface of 45 degrees toward the first inclined surface 241 and the second inclined surface 242. [ Each of the fourth reflection surfaces 244 and 245 has a bottom width 268 and 270 and a height 267 and 269 so as to reflect the light 253 and 254 reflected by the tertiary reflection surface 243. [ May be formed to have a length equal to or longer than the height 264 of the first inclined plane 241 and the height 264 of the second inclined plane 242 of the third reflecting surface 243 associated therewith.

In the rear surface of the second light guiding member 240, ring-shaped lenses 246 and 247 are included to use the parallel light reflected from the fourth reflection surfaces 244 and 245 as a linear light source. can do. The lenses 246 and 247 may include a concave lens or a reverse Fresnel lens so as to allow the light 255 and 256 reflected by the fourth reflection surfaces 244 and 245 to be dispersed. That is, the cross sections of the lenses 246 and 247 may be formed as a cross section of a concave lens or an inverted Fresnel lens.

Two lenses 246 and 247 may be formed radially inwardly and radially outwardly to correspond to the two fourth reflection surfaces 244 and 245, respectively. The lens 246 disposed radially inwardly may be formed in a ring shape having the same radius 273 and concentric with the associated fourth order reflective surface 244 and the lens 247 disposed radially outward The radius 275 may be formed in the same annular shape with the concentricity 260 and the fourth reflecting surface 245 concerned.

The width 271 of the lens 246 located radially inwardly may be formed to have a length greater than the width 268 of the bottom surface of the associated fourth order reflective surface 244, The width 272 of the fourth reflecting surface 247 may be formed to have a length greater than the width 270 of the bottom surface of the associated fourth reflecting surface 145.

The light exiting surface 133 disposed radially inward of the first light guiding member 130 may be formed in a ring shape having the same radius 260 and the same radius 273 as the related lens 246, The emitted light emitting surface 134 may be formed in an annular shape having the same radius 260 and the same radius 275 as the associated lens 247. [ In addition, each of the light exit surfaces 133 and 134 may include parabolic surfaces so that the light beams that are split by the lenses 246 and 247 can be reflected forward and parallel. The widths 174 and 175 of the respective light exit surfaces 133 and 134 may be defined by the width or refractive index of the associated lenses 246 and 247, respectively.

The second light guiding member 240 may be disposed such that the lenses 246 and 247 are positioned at the focal positions of the light exiting surfaces 133 and 134 of the first light guiding member 130. [ That is, the second light guiding member 240 may be spaced apart from the first light guiding member 130 by the focal length 179 of the light exiting surfaces 133 and 134.

The light 158 reflected by the light exiting surfaces 133 and 134 of the first light guiding member 130 may be emitted as parallel light toward the front side. That is, the light generated by the light source 10 is guided by the first light guiding member 130 and the second light guiding member 240 and is uniformly dispersed, and can be emitted forward through the light exiting surfaces 133 and 134. Since the widths 174 and 175 of the light emitting surfaces 133 and 134 can be designed as wide as required, the light from the light source 10 which is a point light source can be used as a surface light source for emitting parallel light.

The third reflective surface 243 and the fourth reflective surfaces 244 and 145 may be formed by vapor-depositing a reflective material such as aluminum on the second light guiding member 140 made of a transparent material. The first light guiding member 130 and the second light guiding member 240 are fixed to the first reflection surface 131, the second reflection surface 132, the third reflection surface 243, and the fourth reflection surface 244, The loss of light can be remarkably reduced as compared with the conventional light guiding member which guides light through total reflection.

3 to 5, a vehicle lighting apparatus according to the present invention includes a light source 10, a reflecting member 20, a primary reflecting surface 131, a secondary reflecting surface 132, a tertiary reflecting surface 143 Or 243, a fourth order reflective surface 144 or 244, a lens 146, 147, 246, or 247, and an exit surface 133 or 134.

The reflecting member 20 can reflect the light of the light source 10 in parallel backward and the primary reflecting surface 131 can disperse and refract the parallel light of the reflecting member 20 radially outwardly, The secondary reflecting surface 132 may refract light reflected from the primary reflecting surface 131 forward and the tertiary reflecting surface 143 or 243 may reflect the light reflected from the secondary reflecting surface 132 to a radius The fourth reflecting surface 144 or 244 can refract the light reflected from the third reflecting surface 143 or 243 backward and the lenses 146 and 147 , 246 or 247 can spectrally reflect the light reflected from the fourth reflection surface 144 or 244 and the light exit surfaces 133 and 134 can direct the spectrally separated light from the lenses 146, 147, 246 or 247 forward It can be reflected in parallel.

3 to 5, a vehicle lighting apparatus according to the present invention may include a light source 10, a reflective member 20, a first light guiding member 130, and a second light guiding member 140 or 240 .

The reflecting member 20 is disposed in front of the light source 10 and can reflect the light generated from the light source 10 toward the rear. The first light guiding member 130 may be disposed behind the light source 10 and the second light guiding member 140 or 240 may be disposed between the light source 10 and the first light guiding member 130.

The first light guiding member 130 may include light exiting surfaces 133 and 134 configured to reflect the light guided by the first light guiding member 130 and the second light guiding member 140 or 240 toward the front .

The first light guiding member 130 is configured to disperse the light vertically incident on the reflective member 20 in the radial direction and the second light guiding member 140 or 240 is configured to disperse the light vertically incident on the first light guiding member 130 To disperse the scattered light again radially inwardly and radially outwardly.

The scope of the present invention is not limited to the specific embodiments described above. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

10: light source 20: reflective member
30, 130: first light guiding member 40, 140, 240: second light guiding member
31, 131: primary reflecting surfaces 32, 132: secondary reflecting surfaces
43, 143, 243: third reflection surface 44, 144, 244: fourth reflection surface
46, 146, 147, 246, 247: lenses 33, 133, 134:

Claims (15)

A reflecting member disposed in front of the light source and reflecting the light generated from the light source toward the rear;
A first light guiding member disposed behind the light source and dispersing light reflected from the reflection member; And
And a second light guiding member disposed between the light source and the first light guiding member and dividing the light dispersed by the first light guiding member. The method according to claim 1,
Wherein the light source, the reflective member, the first light guiding member, and the second light guiding member are arranged so that the center thereof lies on a straight line,
Wherein the reflecting member includes a parabolic surface so as to reflect light of the light source in parallel. 3. The method of claim 2,
The first light guiding member includes a first reflecting surface for dispersing the light reflected by the reflecting member in the radial direction along the first light guiding member and a second reflecting surface for dispersing the light dispersed in the first reflecting surface toward the second light guiding member And a second reflecting surface reflecting the reflected light. The method of claim 3,
Wherein the first reflection surface is formed in a center of the first light guiding member and is formed of a cone having an inclined surface of 45 degrees,
Wherein the secondary reflecting surface is formed in an annular shape concentric with the primary reflecting surface and includes an inclined surface facing radially inward. 5. The method of claim 4,
Wherein the inclined surface of the primary reflecting surface has a radius and a height of a bottom surface longer than a radius of the reflecting member,
Wherein the inclined surface of the secondary reflecting surface has a width and a height of the bottom surface equal to or longer than the height of the primary reflecting surface. 5. The method of claim 4,
Wherein the second light guiding member includes a third reflection surface for dividing the light reflected from the second reflection surface of the first light guiding member and dividing the light radially outward and radially inward along the second light guiding member, And two fourth reflection surfaces for reflecting the light split from the car reflective surface toward the first light guiding member. The method according to claim 6,
Wherein the third reflecting surface is formed in an annular shape concentric with the secondary reflecting surface and having the same radius and includes a first inclined surface of 45 degrees toward the radially inward side and a second inclined surface of 45 degrees toward the radially outer side,
Wherein the two fourth reflection surfaces are formed in an annular shape concentric with the third reflection surface, one is provided on the radially inner side of the third reflection surface and the other is provided on the radially outer side of the third reflection surface And each of the inclined surfaces is inclined at 45 degrees toward the first inclined surface and the second inclined surface of the third reflective surface. 8. The method of claim 7,
The second light guiding member includes two lenses for spectroscopically reflecting the light reflected from the two quadratic reflection surfaces,
Wherein the first light guiding member includes two light exiting surfaces for forwardly reflecting the light split by the two lenses. 9. The method of claim 8,
Wherein each of the two lenses is formed of two annular rings which are concentric with the associated four quadratic reflecting surfaces and have the same radius and include a concave lens or an inverted Fresnel lens so that incident light can be spectrally split,
Wherein each of the two light exiting surfaces is formed in two annular shapes which are concentric with the associated two lenses and have the same radius and include a paraboloid so as to reflect the spectrally split light in the two lenses,
And the second light guiding member is disposed such that the two lenses are located at focal positions of the two light exiting surfaces. 10. The method of claim 9,
The width and the height of the bottom surface of the first inclined surface and the second inclined surface of the tertiary reflecting surface are at least half the width of the secondary reflecting surface,
Wherein the inclined surfaces of the four quadratic reflecting surfaces have a width and height of the bottom surface equal to or longer than the height of the first inclined surface and the second inclined surface of the third reflecting surface. 10. The method of claim 9,
Wherein the width of the bottom surface of the third inclined surface is greater than the width of the bottom surface of the first inclined surface,
Wherein each of the two quadric reflection surfaces is formed to have a length equal to or greater than a height of the first sloped surface or the second sloped surface of the third reflective surface with which the width and height of the bottom surface are related. 12. The method of claim 11,
Wherein each of the two lenses is formed so as to have a width equal to or greater than a width of a bottom surface of the corresponding four quadratic reflection surfaces. Light source;
A reflecting member for reflecting the light of the light source in parallel backward;
A primary reflecting surface for dispersing and refracting collimated light of the reflecting member in a radially outward direction;
A secondary reflecting surface for refracting the light reflected from the primary reflecting surface forward;
A third reflection surface for dispersing and refracting the light reflected from the secondary reflection surface radially inward and radially outward;
A fourth reflection surface for refracting the light reflected from the third reflection surface backward;
A lens for spectroscopically reflecting the light reflected from the fourth reflection surface; And
And a light output surface that reflects the light, which is spectrally separated from the lens, in a forward direction in parallel. A reflecting member disposed in front of the light source and reflecting the light generated from the light source toward the rear;
A first light guiding member disposed behind the light source; And
And a second light guiding member disposed between the light source and the first light guiding member,
Wherein the first light guiding member includes a light exiting surface configured to forwardly reflect the light guided by the first light guiding member and the second light guiding member. 15. The method of claim 14,
Wherein the first light guiding member is configured to disperse light vertically incident on the reflective member in a radial direction,
And the second light guiding member is configured to again disperse the light scattered by the first light guiding member radially inwardly and radially outwardly.

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