WO2023115755A1 - 光导装置和出光系统 - Google Patents

光导装置和出光系统 Download PDF

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Publication number
WO2023115755A1
WO2023115755A1 PCT/CN2022/085726 CN2022085726W WO2023115755A1 WO 2023115755 A1 WO2023115755 A1 WO 2023115755A1 CN 2022085726 W CN2022085726 W CN 2022085726W WO 2023115755 A1 WO2023115755 A1 WO 2023115755A1
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WO
WIPO (PCT)
Prior art keywords
light
incident surface
homogenizing
light incident
uniform
Prior art date
Application number
PCT/CN2022/085726
Other languages
English (en)
French (fr)
Inventor
王辉
朱彩萍
施红健
王思清
卓小敏
Original Assignee
常州星宇车灯股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 常州星宇车灯股份有限公司 filed Critical 常州星宇车灯股份有限公司
Priority to JP2022568440A priority Critical patent/JP7408845B1/ja
Priority to EP22789825.1A priority patent/EP4224056B1/en
Publication of WO2023115755A1 publication Critical patent/WO2023115755A1/zh

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/20—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
    • F21S41/24—Light guides
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/20—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by refractors, transparent cover plates, light guides or filters
    • F21S43/235—Light guides
    • F21S43/236—Light guides characterised by the shape of the light guide
    • F21S43/239—Light guides characterised by the shape of the light guide plate-shaped
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/10—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the light source
    • F21S43/13—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the light source characterised by the type of light source
    • F21S43/14—Light emitting diodes [LED]
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/20—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by refractors, transparent cover plates, light guides or filters
    • F21S43/235—Light guides
    • F21S43/242—Light guides characterised by the emission area
    • F21S43/245—Light guides characterised by the emission area emitting light from one or more of its major surfaces
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/20—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by refractors, transparent cover plates, light guides or filters
    • F21S43/235—Light guides
    • F21S43/247—Light guides with a single light source being coupled into the light guide
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/20—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by refractors, transparent cover plates, light guides or filters
    • F21S43/235—Light guides
    • F21S43/249—Light guides with two or more light sources being coupled into the light guide
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0013—Means for improving the coupling-in of light from the light source into the light guide
    • G02B6/0015—Means for improving the coupling-in of light from the light source into the light guide provided on the surface of the light guide or in the bulk of it
    • G02B6/002—Means for improving the coupling-in of light from the light source into the light guide provided on the surface of the light guide or in the bulk of it by shaping at least a portion of the light guide, e.g. with collimating, focussing or diverging surfaces
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/10—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the light source
    • F21S43/13—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the light source characterised by the type of light source
    • F21S43/15—Strips of light sources
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2107/00—Use or application of lighting devices on or in particular types of vehicles
    • F21W2107/10—Use or application of lighting devices on or in particular types of vehicles for land vehicles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0013—Means for improving the coupling-in of light from the light source into the light guide
    • G02B6/0023—Means for improving the coupling-in of light from the light source into the light guide provided by one optical element, or plurality thereof, placed between the light guide and the light source, or around the light source

Definitions

  • the invention relates to the technical field of automobile lights, in particular to a light guiding device and a light output system.
  • the light guide is often used in the lighting system of automobile lights.
  • the angle between the stretching direction of the light guide plate and the light emitting direction of the light source is too large (that is, the angle exceeds 15°)
  • uneven brightness will occur, that is, the end close to the light source is brighter, and the end far away from the light source is darker, thus Affect perception.
  • the technical problem to be solved by the present invention is: to solve the technical problem of uneven brightness of the light guide plate in the prior art, the present invention provides a light guide device, which can make the light guide plate evenly lit.
  • a light guide device comprising: a light source, and a light guide plate, the light guide plate is provided with a uniform light structure toward the bottom end of the light source, and the light uniform structure is connected to the light guide plate
  • the light guide plate is fixedly connected;
  • the light guide plate includes a body, a first inclined portion and a second inclined portion, the first inclined portion and the second inclined portion are respectively located on the left and right sides of the body, and the first inclined portion and the second inclined part are fixedly connected to the body, and the tops of the first inclined part and the second inclined part are higher than the top of the main body;
  • the light uniform structure includes a first light uniform part, The second homogenizing part and the third homogenizing part, the first homogenizing part and the third homogenizing part are respectively located on the left and right sides of the second homogenizing part, and the first homogenizing part and the third homogenizing part Both parts are fixedly connected with the second light uniforming part; the first light uniforming
  • the first light-homogenizing unit includes a plurality of first light-homogenizing units connected end-to-end in sequence, and the first light-homogenizing unit includes a first connecting surface, a first light-incident surface , the second light incident surface, the third light incident surface, the second connecting surface and the first reflecting surface; the first connecting surface, the first light incident surface, the second light incident surface, the third light incident surface, the second The connection surface and the first reflective surface are sequentially connected from left to right.
  • first light incident surface and the second connecting surface are all horizontal planes, and the first connecting surface, the second light incident surface, the third light incident surface and the first reflecting surface are all inclined surfaces; the first light incident surface The inclination direction of the second light incident surface is opposite to the inclination direction of the third light incident surface, and the connection between the second light incident surface and the third light incident surface is an arc surface concaved away from the light source; the first light incident surface The inclination direction of the first connecting surface is the same as that of the third light incident surface, and the inclination direction of the first reflecting surface is the same as that of the second light incident surface.
  • first reflective surface of the former first light homogenizing unit is connected to the first connection surface of the latter first light homogenizing unit through a first horizontal plane, and the first reflective surface, the first horizontal plane and the first The connecting surfaces are formed in a concave shape that is concave toward the main body.
  • the third light-homogenizing unit includes a plurality of third light-homogenizing units connected end-to-end in sequence, and the third light-homogenizing unit includes a third connecting surface, a fourth light-incident surface , the fifth light incident surface, the sixth light incident surface, the fourth connecting surface and the second reflecting surface; the third connecting surface, the fourth light incident surface, the fifth light incident surface, the sixth light incident surface, the fourth The connection surface and the second reflective surface are sequentially connected from right to left.
  • the fourth light incident surface and the fourth connecting surface are all horizontal planes, and the third connecting surface, the fifth light incident surface, the sixth light incident surface and the second reflecting surface are all inclined surfaces;
  • the inclination direction of the fifth light-incident surface is opposite to that of the sixth light-incident surface, and the connection between the fifth light-incident surface and the sixth light-incidence surface is an arc surface concave away from the light source;
  • the sixth light-incident surface The inclination direction of the three connecting surfaces is the same as that of the sixth light incident surface, and the inclination direction of the second reflecting surface is the same as that of the fifth light incident surface.
  • the second reflective surface of the previous third light homogenizing unit is connected to the third connecting surface of the latter third light homogenizing unit through a second horizontal plane, and the second reflective surface, the second horizontal plane and the third The connecting surfaces are formed in a concave shape that is concave toward the main body.
  • the inclined direction of the first inclined portion is the same as the inclined direction of the first connecting surface
  • the inclined direction of the second inclined portion is the same as the inclined direction of the third connecting surface
  • the first connecting surface The inclination directions of the surface and the third connection surface are opposite.
  • the reference plane Y is a vertical plane, and the included angles between the first connection surface and the third connection surface and the reference plane Y are A , the included angles between the first inclined portion and the second inclined portion and the reference plane Y are both B; the included angle A is larger than the included angle B.
  • the reference plane Y is a vertical plane
  • the included angles between the third light incident surface and the sixth light incident surface and the reference plane Y are equal to is C
  • the included angle C is greater than the included angle D
  • the height of the first reflective surface is greater than that of the third light incident surface
  • the height of the second reflective surface is greater than the height of the sixth light incident surface.
  • a diffusion pattern is provided on one side of the uniform light structure.
  • a homogenizing layer is further provided between the light homogenizing structure and the light source.
  • the present invention also provides a light extraction system, comprising: a backplane, and the above-mentioned light guide device, wherein the backplane is connected to the light guide plate.
  • the beneficial effect of the present invention is that, in the light guide device of the present invention, by setting the light uniform structure, the first light uniform part diverges the light emitted by the light source to the first inclined part, and the third light uniform part diverges the light emitted by the light source to the second inclined part.
  • the top of the light guide plate with a large inclination angle that is, the end away from the light source
  • Fig. 1 is a schematic structural view of the light guide device of the present invention.
  • Fig. 2 is a schematic diagram of light propagating in the light guide device of the present invention.
  • Fig. 3 is an enlarged view of the first light homogenizing unit of the present invention.
  • Fig. 4 is a schematic diagram of light propagating in the first light homogenizing unit of the present invention.
  • Fig. 5 is an enlarged view of the third light homogenizing unit of the present invention.
  • Fig. 6 is a schematic diagram of the propagation of the light source in the third light homogenizing unit of the present invention.
  • Fig. 7 is a cross-sectional view of the light guide plate of the present invention.
  • Fig. 8 is an enlarged view of the second light homogenizing unit of the present invention.
  • connection should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection. Connected, or integrally connected; it can be mechanically connected or electrically connected; it can be directly connected or indirectly connected through an intermediary, and it can be the internal communication of two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention in specific situations.
  • a light guide device includes a light source 1 and a light guide plate 2 .
  • the number of light sources 1 may be multiple, and the light sources 1 may be, for example, LEDs.
  • the light emitting angles of the LEDs are conical, and light beams of different angles can be emitted at the same time.
  • One end of the light guide plate 2 facing the light source 1 is provided with a uniform light structure 3 , and the light uniform structure 3 is fixedly connected with the light guide plate 2 .
  • a plurality of light sources 1 can be arranged directly under the light guide plate 2 , and the light emitting surfaces of the light sources 1 face the light uniform structure 3 of the light guide plate 2 .
  • the light guide plate 2 includes a main body 21, a first inclined portion 22 and a second inclined portion 23, the first inclined portion 22 and the second inclined portion 23 are respectively located on the left and right sides of the main body 21, the first inclined portion 22 and the second inclined portion 23 Both are fixedly connected with the main body 21 , and tops of the first inclined portion 22 and the second inclined portion 23 are higher than the top of the main body 21 .
  • the light guide plate 2 has a "concave" shape as a whole, and the left and right sides of the light guide plate 2 are inclined.
  • the homogenizing structure 3 includes a first homogenizing portion 31, a second homogenizing portion 32, and a third homogenizing portion 33, and the first homogenizing portion 31 and the third homogenizing portion 33 are located on the left and right sides of the second homogenizing portion 32, respectively. side, and both the first homogenizing portion 31 and the third homogenizing portion 33 are fixedly connected to the second homogenizing portion 32 .
  • the first homogenizing part 31, the second homogenizing part 32 and the third homogenizing part 33 can be integrally formed, and the second homogenizing part 32 is located between the first homogenizing part 31 and the third homogenizing part 33. between.
  • the first homogenizing part 31 and the third homogenizing part 33 are symmetrically arranged along the vertical center line of the second homogenizing part 32, and the first homogenizing part 31, the second homogenizing part 32 and the third homogenizing part 33 are used In receiving the beam emitted by the light source 1, for example, the first homogenizing part 31 is used to diverge the light emitted by the light source 1 to the first inclined part 22, and the third homogenizing part 33 is used to diverge the light emitted by the light source 1 to the second inclined part.
  • the part 23 diverges, and the second uniform part 32 is used to diverge the light emitted by the light source 1 to the main body 21 .
  • the first light homogenizing part 31 and the second light homogenizing part 33 can reflect light emitted by the light source 1 with a relatively large angle, so that the overall light emitting effect of the light guide plate 2 is more uniform.
  • the first light homogenizing unit 31 includes a plurality of first light homogenizing units 34, and the plurality of first light homogenizing units 34 are connected end to end in turn.
  • the first light homogenizing unit 34 includes a first connecting surface 341, a first inlet The light surface 342, the second light incident surface 343, the third light incident surface 344, the second connecting surface 345 and the first reflecting surface 346; the first connecting surface 341, the first light incident surface 342, the second light incident surface 343, The third light incident surface 344 , the second connecting surface 345 and the first reflecting surface 346 are sequentially connected from left to right.
  • the first light incident surface 342 and the second connecting surface 345 are all horizontal planes, the first connecting surface 341, the second light incident surface 343, the third light incident surface 344 and the first reflecting surface 346 are all inclined surfaces;
  • the inclination direction of the surface 343 is opposite to the inclination direction of the third light incident surface 344, and the connection between the second light incident surface 343 and the third light incident surface 344 is an arc surface concave toward the direction away from the light source 1, and the first connecting surface 341
  • the inclination direction of the first reflection surface 346 is the same as the inclination direction of the third light incident surface 344, and the inclination direction of the first reflective surface 346 is the same as that of the second light incident surface 343.
  • the first reflective surface 346 of the previous first homogenizing unit 34 is connected to the first connection surface 341 of the latter first homogenizing unit 34 through the first horizontal plane 347, and the first reflective surface 346, the first horizontal plane 347 and the first
  • the connecting surfaces 341 are formed in a concave shape that is concave toward the main body 21 .
  • a light source 1 is provided below each first light homogenizing unit 34 , and the light source 1 is as close as possible to the first light homogenizing unit 34 .
  • the light source 1 emits beams at different angles, let the light beam diverging from the light source 1 to the left be beam 1, the beam diverging to the middle be beam 2, and the beam diverging to the right be beam 3, and the beam 1 can pass through
  • the first light incident surface 342 and the second light incident surface 343 enter the light guide plate 2
  • the light beam two can enter the light guide plate 2 through the second light incident surface 343 and the third light incident surface 344
  • the light beam three can pass through the third light incident surface
  • the surface 344 enters into the uniform light structure 3, and is reflected on the first reflective surface 346 and enters the light guide plate 2.
  • the light emitted by the light source 1 at different angles can all enter the light guide plate 2 , and allow more light to exit in the direction of the first inclined portion 22 , so that the overall luminous brightness of the light guide plate 2 is more uniform.
  • the first connecting surface 341 and the third light incident surface 344 are inclined to the left
  • the second light incident surface 343 and the first reflecting surface 346 are inclined to the right
  • the first reflecting surface The inclination angle of 346 should not be too large, otherwise the reflection effect cannot be achieved.
  • the third light equalizing unit 33 includes a plurality of third light equalizing units 35 connected end to end in sequence, and the third light equalizing unit 35 includes a third connecting surface 351, a fourth inlet Light surface 352, fifth light incident surface 353, sixth light incident surface 354, fourth connecting surface 355 and second reflecting surface 356; third connecting surface 351, fourth light incident surface 352, fifth light incident surface 353, The sixth light incident surface 354 , the fourth connecting surface 355 and the second reflecting surface 356 are sequentially connected from right to left.
  • the fourth light incident surface 352 and the fourth connecting surface 355 are all horizontal planes, the third connecting surface 351, the fifth light incident surface 353, the sixth light incident surface 354 and the second reflecting surface 356 are all inclined surfaces; the fifth light incident surface The inclination direction of the surface 353 is opposite to the inclination direction of the sixth light incident surface 354, and the connection between the fifth light incident surface 353 and the sixth light incident surface 354 is an arc surface concave toward the direction away from the light source 1; the third connecting surface 351 The inclination direction of the second reflection surface 356 is the same as the inclination direction of the sixth light incident surface 354, and the inclination direction of the second reflective surface 356 is the same as that of the fifth light incident surface 353.
  • the light rays of different angles emitted by the light source 1 can all enter the third light incident surface 353.
  • the second reflective surface 356 of the previous third uniform light unit 35 is connected to the third connection surface 351 of the rear third uniform light unit 35 through the second horizontal plane 357, and the second reflective surface 356, the second horizontal plane 357 and the third
  • the connection surfaces 351 are formed in a concave shape that is concave toward the main body 21 .
  • the structure of the third homogenizing unit 35 is the same as that of the first homogenizing unit 34, but the third homogenizing unit 35 and the first homogenizing unit 34 are symmetrically arranged along the center line of the body 21.
  • a light source 1 is provided below each third light homogenizing unit 35 , and the light source 1 is as close as possible to the third light homogenizing unit 35 .
  • the first light beam can enter the light guide plate 2 through the fourth light incident surface 352 and the fifth light incident surface 353, and the second light beam can pass through the fifth light incident surface 353 and the fifth light incident surface 353.
  • the sixth light incident surface 354 enters the light guide plate 2, the light beam 3 can enter the light uniform structure 3 through the sixth light incident surface 354, and is reflected on the second reflective surface 356 to enter the light guide plate 2.
  • the structure is designed so that light from different angles emitted by the light source 1 can enter the light guide plate 2 and allow more light to exit in the direction of the second inclined portion 23 , so that the overall luminance of the light guide plate 2 is more uniform.
  • the third connecting surface 351 and the sixth light incident surface 354 are inclined to the left
  • the fifth light incident surface 353 and the second reflecting surface 356 are inclined to the right
  • the second reflecting surface The inclination angle of 356 should not be too large, otherwise the reflection effect cannot be achieved.
  • the inclined direction of the first inclined portion 22 is the same as the inclined direction of the first connecting surface 341
  • the inclined direction of the second inclined portion 23 is the same as the inclined direction of the third connecting surface 351
  • the first connecting surface 341 and the third connecting surface The direction of inclination of the face 351 is opposite.
  • the reference plane Y is a vertical plane
  • the included angles between the first connecting surface 341 and the third connecting surface 351 and the reference plane Y are both A
  • the first inclined portion 22 The included angles between the second inclined portion 23 and the reference plane Y are both B; the included angle A is greater than the included angle B.
  • the inclination angle of the first connection surface 341 is greater than the inclination angle of the first inclination portion 22, and the inclination angle of the third connection surface 351 is greater than the inclination angle of the second inclination portion 23.
  • the included angle between the first inclined portion 22 and the horizontal plane may be 40°-70°, and the included angle between the second inclined portion 23 and the horizontal plane may be 40°-70°.
  • the reference plane Y is a vertical plane
  • the angles between the third light incident surface 344 and the sixth light incident surface 354 and the reference plane Y are both C
  • the included angles between the surface 346 and the second reflective surface 356 and the reference plane Y are both D
  • the included angle C is greater than the included angle D
  • the height of the first reflective surface 346 is greater than the height of the third incident surface 344
  • the second reflective surface The height of the surface 356 is greater than the height of the sixth light incident surface 354 .
  • the light beam diverging from the light source 1 to the right can be reflected by the first reflective surface 346, and the light is refracted to the direction of the first inclined portion 22 to exit; in the third light homogenizing unit 35, the light source 1.
  • the light diverging to the left can be reflected by the second reflective surface 356, and the light can be bent toward the direction of the second inclined part 23 to exit, so that the position of the light guide plate 2 farther away from the light source 1 can also present a brighter effect, ensuring that the light guide plate 2 The uniformity of the overall luminous effect.
  • the second light equalizing unit 32 includes a plurality of second light equalizing units 36, and the plurality of second light equalizing units 36 are connected end to end in turn, and the second light equalizing unit 36 can be semi-elliptical, with two adjacent
  • the second uniform light unit 36 can be connected by an inclined surface, and a light source 1 is arranged below each second uniform light unit 36, and the width of the second uniform light unit 36 matches the width of the light-emitting surface of the light source 1 for diffusion. The light emitted by light source 1.
  • a diffusion pattern 4 is provided on one side of the light uniform structure 3 , specifically, the diffusion pattern 4 is provided on the front side of the light uniform structure 3 .
  • the diffusion pattern 4 can be textures such as vertical stripes and wavy patterns, which are not limited here and can be designed according to actual needs.
  • a homogenizing layer (not shown in the figure) is provided between the light homogenizing structure 3 and the light source 1, and the homogenizing layer is used to homogenize the light emitted by the light source 1, for example, it can have good diffusion performance Or materials with good heat dissipation properties.
  • the present invention also provides a light extraction system, comprising the above-mentioned light guide device and a back plate, the back plate is arranged on the rear side of the light guide plate 2 , and the back plate is fixedly connected to the light guide plate 2 .
  • the light guide plate is pink or transparent, so that when the red light emitted by the LED light source propagates in the light guide plate, the absorption is small and the transmission distance is long; the back plate is pink or white, and the back plate is made of opaque material, which has a certain The strong reflection effect improves the utilization rate of light energy and improves the uniformity of light output.
  • the light uniform structure 3 is arranged at the bottom of the light guide plate 2, and the first light uniform part 31 and the third light uniform part 33 are symmetrically arranged left and right along the center line of the second light uniform part 32, A part of the light emitted by the light source 1 can be reflected by the first homogenizing part 31 and the third homogenizing part 33 to diverge in the direction of the two inclined parts, so that the tops of the inclined parts on both sides of the light guide plate 2 can also be uniformly lit, so that The light guide plate 2 emits light uniformly as a whole.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • General Physics & Mathematics (AREA)
  • Planar Illumination Modules (AREA)
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Abstract

一种光导装置，包括：光源（1），以及光导板（2），光导板（2）朝向光源（1）的底端设有均光结构（3），均光结构（3）与光导板（2）固定连接；光导板（2）包括本体（21）、第一倾斜部（22）及第二倾斜部（23），第一倾斜部（22）及第二倾斜部（23）分别位于本体（21）的左右两侧，第一倾斜部（22）及第二倾斜部（23）均与本体（21）固定连接，且第一倾斜部（22）及第二倾斜部（23）均高于本体（21）的顶部；其中，均光结构（3）包含第一均光部（31）、第二均光部（32）及第三均光部（33），第一均光部（31）和第三均光部（33）分别位于第二均光部（32）的左右两侧，且第一均光部（31）和第三均光部（33）均与第二均光部（32）固定连接；第一均光部（31）用于将光源（1）发出的光线向第一倾斜部（22）发散，第三均光部（33）用于将光源（1）发出的光线向第二倾斜部（23）发散，第二均光部（32）用于将光源（1）发出的光线向本体（21）发散。利用这种光导装置，能够使得光导板（2）被均匀点亮。

Description

光导装置和出光系统 技术领域
本发明涉及汽车车灯技术领域，尤其涉及一种光导装置和出光系统。
背景技术
随着汽车的迭代发展，底盘、车身等结构日趋成熟，越来越难以形成差异化。因此，包括车灯在内的外观差异化竞争的重要性就日益凸显了。如何以较少的光源实现更复杂的灯光效果成为研究热点。
光导因全反射原理、能量利用率高等优势，常用于汽车车灯发光系统中。但是光导板的伸展方向与光源出光方向的夹角过大时(即夹角超过15°)，就会发生亮度不均的现象，即导致靠近光源端较亮，而远离光源端较暗，从而影响观感。
发明内容
本发明要解决的技术问题是：为了现有技术中光导板亮度不均匀的技术问题，本发明提供一种光导装置，能够使得光导板被均匀点亮。
本发明解决其技术问题所采用的技术方案是：一种光导装置，包括：光源，以及光导板，所述光导板朝向所述光源的底端设有均光结构，所述均光结构与所述光导板固定连接；所述光导板包括本体、第一倾斜部及第二倾斜部，所述第一倾斜部及第二倾斜部分别位于所述本体的左右两侧，所述第一倾斜部及第二倾斜部均与所述本体固定连接，且所述第一倾斜部及第二倾斜部的顶部均高于所述本体的顶部；其中，所述均光结构包含第一均光部、第二均光部及第三均光部，第一均光部和第三均光部分别位于所述第二均光部的左右两侧，且所述第一均光部和第三均光部均与所述第二均光部固定连接；所述第一均光部用于将所述光源发出的光线向所述第一倾斜部发散，所述第三均光部用于将所述 光源发出的光线向所述第二倾斜部发散，所述第二均光部用于将所述光源发出的光线向所述本体发散。
进一步地，所述第一均光部包含多个第一均光单元，所述多个第一均光单元依次首尾相连，所述第一均光单元包括第一连接面、第一入光面、第二入光面、第三入光面、第二连接面及第一反射面；所述第一连接面、第一入光面、第二入光面、第三入光面、第二连接面及第一反射面为从左至右顺次相连。
进一步地，所述第一入光面和第二连接面均为水平面，所述第一连接面、第二入光面、第三入光面及第一反射面均为倾斜面；所述第二入光面的倾斜方向和第三入光面的倾斜方向相反，且所述第二入光面和第三入光面的连接处为朝远离所述光源方向凹陷的弧面；所述第一连接面的倾斜方向与第三入光面的倾斜方向相同，所述第一反射面的倾斜方向与第二入光面的倾斜方面相同。
进一步地，前一个所述第一均光单元的第一反射面与后一个第一均光单元的第一连接面通过第一水平面相连，且所述第一反射面、第一水平面及第一连接面之间形成为向所述本体方向凹陷的凹陷状。
进一步地，所述第三均光部包含多个第三均光单元，所述多个第三均光单元依次首尾相连，所述第三均光单元包括第三连接面、第四入光面、第五入光面、第六入光面、第四连接面及第二反射面；所述第三连接面、第四入光面、第五入光面、第六入光面、第四连接面及第二反射面为从右至左顺次相连。
进一步地，所述第四入光面和第四连接面均为水平面，所述第三连接面、第五入光面、第六入光面及第二反射面均为倾斜面；所述第五入光面的倾斜方向和第六入光面的倾斜方向相反，且所述第五入光面和第六入光面的连接处为朝远离所述光源方向凹陷的弧面；所述第三连接面的倾斜方向与第六入光面的倾斜方向相同，所述第二反射面的倾斜方向与第五入光面的倾斜方面相同。
进一步地，前一个所述第三均光单元的第二反射面与后一个第三均光单元的第三连接面通过第二水平面相连，且所述第二反射面、第二水平面及第三连接面之间形成为向所述本体方向凹陷的凹陷状。
进一步地，所述第一倾斜部的倾斜方向与所述第一连接面的倾斜方向相同，所述第二倾斜部的倾斜方向与所述第三连接面的倾斜方向相同，所述第一连接面和第三连接面的倾斜方向相反。
进一步地，以垂直于所述光导板的平面为基准面Y，所述基准面Y为竖直面，所述第一连接面和第三连接面与基准面Y之间的夹角均为A，所述第一倾斜部和第二倾斜部与基准面Y之间的夹角均为B；夹角A大于夹角B。
进一步地，以垂直于所述光导板的平面为基准面Y，所述基准面Y为竖直面，所述第三入光面和第六入光面与基准面Y之间的夹角均为C，所述第一反射面和第二反射面与基准面Y之间的夹角均为D，夹角C大于夹角D，且所述第一反射面的高度大于第三入光面的高度，所述第二反射面的高度大于第六入光面的高度。
进一步地，所述均光结构的一侧面上设有扩散花纹。
进一步地，所述均光结构和所述光源之间还设有均化层。
本发明还提供一种出光系统，包括：背板，以及上述的光导装置，所述背板与光导板连接。
本发明的有益效果是，本发明的光导装置，通过设置均光结构，第一均光部将光源发出的光线向第一倾斜部发散，第三均光部将光源发出的光线向第二倾斜部发散，使得大倾角的光导板的顶部(即远离光源的一端)也可以被点亮，使得光导板整体亮度保持均匀，呈现较佳的视觉效果。
附图说明
下面结合附图和实施例对本发明进一步说明。
图1是本发明的光导装置的结构示意图。
图2是本发明的光线在光导装置内传播的示意图。
图3是本发明的第一均光单元的放大图。
图4是本发明的光线在第一均光单元内传播的示意图。
图5是本发明的第三均光单元的放大图。
图6是本发明的光源在第三均光单元内传播的示意图。
图7是本发明的光导板的剖视图。
图8是本发明的第二均光单元的放大图。
图中：1、光源，2、光导板，3、均光结构，4、扩散花纹，21、本体，22、第一倾斜部，23、第二倾斜部，31、第一均光部，32、第二均光部，33、第三均光部，34、第一均光单元，341、第一连接面，342、第一入光面，343、第二入光面，344、第三入光面，345、第二连接面，346、第一反射面，347、第一水平面，35、第三均光单元，351、第三连接面，352、第四入光面，353、第五入光面，354、第六入光面，355、第四连接面，356、第二反射面，357、第二水平面，36、第二均光单元。
具体实施方式
现在结合附图对本发明作进一步详细的说明。这些附图均为简化的示意图，仅以示意方式说明本发明的基本结构，因此其仅显示与本发明有关的构成。
在本发明的描述中，需要理解的是，术语“中心”、“纵向”、“横向”、“长度”、“宽度”、“厚度”、“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”“内”、“外”、“顺时针”、“逆时针”、“轴向”、“径向”、“周向”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便 于描述本发明和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本发明的限制。此外，限定有“第一”、“第二”的特征可以明示或者隐含地包括一个或者更多个该特征。在本发明的描述中，除非另有说明，“多个”的含义是两个或两个以上。
在本发明的描述中，需要说明的是，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或一体地连接；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通。对于本领域的普通技术人员而言，可以具体情况理解上述术语在本发明中的具体含义。
如图1至图2所示，一种光导装置，包括光源1和光导板2。光源1的数量可以为多个，光源1例如可以是LED，LED的发光角度呈圆锥形，可以同时发出不同角度的光束。光导板2朝向光源1的一端设有均光结构3，均光结构3与光导板2固定连接。多个光源1可以设置在光导板2的正下方，光源1的发光面正对着光导板2的均光结构3。光导板2包括本体21、第一倾斜部22及第二倾斜部23，第一倾斜部22及第二倾斜部23分别位于本体21的左右两侧，第一倾斜部22及第二倾斜部23均与本体21固定连接，且第一倾斜部22及第二倾斜部23的顶部均高于本体21的顶部。换言之，光导板2整体呈现为“凹”字形，且光导板2的左右两侧为倾斜状。
均光结构3包含第一均光部31、第二均光部32及第三均光部33，第一均光部31和第三均光部33分别位于第二均光部32的左右两侧，且第一均光部31和第三均光部33均与第二均光部32固定连接。例如，第一均光部31、第二均光部32及第三均光部33三者可以为一体成型，第二均光部32位于第一均光部31和第三均光部33之间。第一均光部31和第三均光部33沿第二均光部32的 竖直中心线左右对称设置，第一均光部31、第二均光部32及第三均光部33用于接收光源1发出的光束，例如，第一均光部31用于将光源1发出的光线向第一倾斜部22发散，第三均光部33用于将光源1发出的光线向第二倾斜部23发散，第二均光部32用于将光源1发出的光线向本体21发散。具体的，第一均光部31和第二均光部33可以将光源1发出的角度较大的光线进行反射处理，使得光导板2整体出光效果更加均匀。
如图3所示，第一均光部31包含多个第一均光单元34，多个第一均光单元34依次首尾相连，第一均光单元34包括第一连接面341、第一入光面342、第二入光面343、第三入光面344、第二连接面345及第一反射面346；第一连接面341、第一入光面342、第二入光面343、第三入光面344、第二连接面345及第一反射面346为从左至右顺次相连。第一入光面342和第二连接面345均为水平面，第一连接面341、第二入光面343、第三入光面344及第一反射面346均为倾斜面；第二入光面343的倾斜方向和第三入光面344的倾斜方向相反，且第二入光面343和第三入光面344的连接处为朝远离光源1方向凹陷的弧面，第一连接面341的倾斜方向与第三入光面344的倾斜方向相同，第一反射面346的倾斜方向与第二入光面343的倾斜方面相同，这样，光源1发出的不同角度的光线能够全部进入第一均光单元34内。前一个第一均光单元34的第一反射面346与后一个第一均光单元34的第一连接面341通过第一水平面347相连，且第一反射面346、第一水平面347及第一连接面341之间形成为向本体21方向凹陷的凹陷状。
具体的，每个第一均光单元34下方均设有一个光源1，光源1尽可能的贴近第一均光单元34。如图4所示，当光源1发出不同角度的光束时，设光源1往左边发散的光束为光束一，往中间发散的光束为光束二，往右边发散的光束 为光束三，光束一可以通过第一入光面342和第二入光面343进入光导板2内，光束二可以通过第二入光面343和第三入光面344进入光导板2内，光束三可以通过第三入光面344进入均光结构3内，并在第一反射面346发生反射进入光导板2内，通过对均光单元的结构设计，使得光源1发出的不同角度的光，都能够进入光导板2内，且使得更多的光线往第一倾斜部22的方向出射，使得光导板2整体的发光亮度更加均匀。
具体的，在第一均光单元34中，第一连接面341和第三入光面344为向左倾斜，第二入光面343和第一反射面346为向右倾斜，第一反射面346的倾斜角度不宜过大，否则无法起到反射效果。
如图5所示，第三均光部33包含多个第三均光单元35，多个第三均光单元35依次首尾相连，第三均光单元35包括第三连接面351、第四入光面352、第五入光面353、第六入光面354、第四连接面355及第二反射面356；第三连接面351、第四入光面352、第五入光面353、第六入光面354、第四连接面355及第二反射面356为从右至左顺次相连。第四入光面352和第四连接面355均为水平面，第三连接面351、第五入光面353、第六入光面354及第二反射面356均为倾斜面；第五入光面353的倾斜方向和第六入光面354的倾斜方向相反，且第五入光面353和第六入光面354的连接处为朝远离光源1方向凹陷的弧面；第三连接面351的倾斜方向与第六入光面354的倾斜方向相同，第二反射面356的倾斜方向与第五入光面353的倾斜方面相同，这样，光源1发出的不同角度的光线能够全部进入第三均光单元35内。前一个第三均光单元35的第二反射面356与后一个第三均光单元35的第三连接面351通过第二水平面357相连，且第二反射面356、第二水平面357及第三连接面351之间形成为向本体21方向凹陷的凹陷状。换言之，第三均光单元35的结构与第一均光单元34的结构 是相同的，但是，第三均光单元35和第一均光单元34沿本体21的中心线呈左右对称设置。
同样的，每个第三均光单元35下方均设有一个光源1，光源1尽可能的贴近第三均光单元35。如图6所示，当光源1发出不同角度的光束时，光束一可以通过第四入光面352和第五入光面353进入光导板2内，光束二可以通过第五入光面353和第六入光面354进入光导板2内，光束三可以通过第六入光面354进入均光结构3内，并在第二反射面356发生反射进入光导板2内，通过对均光单元的结构设计，使得光源1发出的不同角度的光，都能够进入光导板2内，且使得更多的光线往第二倾斜部23的方向出射，使得光导板2整体的发光亮度更加均匀。具体的，在第三均光单元35中，第三连接面351和第六入光面354为向左倾斜，第五入光面353和第二反射面356为向右倾斜，第二反射面356的倾斜角度不宜过大，否则无法起到反射效果。
进一步地，第一倾斜部22的倾斜方向与第一连接面341的倾斜方向相同，第二倾斜部23的倾斜方向与第三连接面351的倾斜方向相同，第一连接面341和第三连接面351的倾斜方向相反。以垂直于光导板2的平面为基准面Y，基准面Y为竖直面，第一连接面341和第三连接面351与基准面Y之间的夹角均为A，第一倾斜部22和第二倾斜部23与基准面Y之间的夹角均为B；夹角A大于夹角B。换言之，第一连接面341的倾斜角度要大于第一倾斜部22的倾斜角度，第三连接面351的倾斜角度要大于第二倾斜部23的倾斜角度，这样，能够防止当光源1发出的光线角度较大时以及被第一反射面346和第二反射面356反射以后的光线从第一连接面341和第三连接面351直接出去，导致漏光。例如，第一倾斜部22与水平面的夹角可以是40°-70°，第二倾斜部23与水平面的夹角可以是40°-70°。
以垂直于光导板2的平面为基准面Y，基准面Y为竖直面，第三入光面344和第六入光面354与基准面Y之间的夹角均为C，第一反射面346和第二反射面356与基准面Y之间的夹角均为D，夹角C大于夹角D，且第一反射面346的高度大于第三入光面344的高度，第二反射面356的高度大于第六入光面354的高度。这样，在第一均光单元34中，光源1往右边发散的光束能够被第一反射面346反射，将光线折向第一倾斜部22的方向出射；在第三均光单元35中，光源1往左边发散的光线能够被第二反射面356反射，将光线折向第二倾斜部23的方向出射，使得光导板2离光源1较远的位置也能够呈现较亮的效果，保证光导板2整体发光效果的均匀性。
如图8所示，第二均光部32包含多个第二均光单元36，多个第二均光单元36依次首尾相连，第二均光单元36可以是半椭圆形，相邻两个第二均光单元36之间可以通过倾斜面相连，每个第二均光单元36下方设有一个光源1，第二均光单元36的宽度与光源1的发光面宽度相配合，用于扩散光源1发出的光线。
在本实施例中，均光结构3的一侧面上设有扩散花纹4，具体的，扩散花纹4设置在均光结构3的前侧面。请参考图7，由于光源1的发光角度是呈圆锥形的，且光导板2和均光结构3是具有一定厚度的，光源1发出的一部分光线可以直接从均光结构3的前侧面射出，一部分光线可以在均光结构3的后侧面反射后从前侧面射出，当光线从前侧面射出时，扩散花纹5可以将光线进行扩散，实现点亮。扩散花纹4可以是竖条纹、波浪纹等纹理，此处不做限制，可以根据实际需求进行设计。
在本实施例中，均光结构3和光源1之间还设有均化层(图中未示出)，均化层用于将光源1发出的光线进行均匀化，例如可以是扩散性能好或散热性能好的材料。
本发明还提供了一种出光系统，包括上述的导光装置以及背板，背板设置在光导板2的后侧面，背板与光导板2固定连接。具体的，光导板为粉色或透明色，这样，LED光源发出红光在光导板中进行传播时，吸收少，传播距离远；背板为粉色或白色，背板采用不透明材质，对红色光有很强的反射效果，使光能的利用率得到提升，并且提升了出光的均匀性。
综上所述，本发明的光导装置，通过在光导板2底部设置均光结构3，且第一均光部31和第三均光部33沿第二均光部32中心线左右对称设置，使得光源1发出的一部分光线能够被第一均光部31和第三均光部33反射至两个倾斜部的方向发散，使得光导板2两侧的倾斜部顶端也能够被均匀点亮，使得光导板2整体均匀发光。
以上述依据本发明的理想实施例为启示，通过上述的说明内容，相关工作人员完全可以在不偏离本项发明技术思想的范围内，进行多样的变更以及修改。本项发明的技术性范围并不局限于说明书上的内容，必须要如权利要求范围来确定其技术性范围。

Claims (13)

  1. 一种光导装置，其特征在于，包括：
    光源(1)，以及
    光导板(2)，所述光导板(2)朝向所述光源(1)的底端设有均光结构(3)，所述均光结构(3)与所述光导板(2)固定连接；所述光导板(2)包括本体(21)、第一倾斜部(22)及第二倾斜部(23)，所述第一倾斜部(22)及第二倾斜部(23)分别位于所述本体(21)的左右两侧，所述第一倾斜部(22)及第二倾斜部(23)均与所述本体(21)固定连接，且所述第一倾斜部(22)及第二倾斜部(23)的顶部均高于所述本体(21)的顶部；
    其中，所述均光结构(3)包含第一均光部(31)、第二均光部(32)及第三均光部(33)，第一均光部(31)和第三均光部(33)分别位于所述第二均光部(32)的左右两侧，且所述第一均光部(31)和第三均光部(33)均与所述第二均光部(32)固定连接；
    所述第一均光部(31)用于将所述光源(1)发出的光线向所述第一倾斜部(22)发散，所述第三均光部(33)用于将所述光源(1)发出的光线向所述第二倾斜部(23)发散，所述第二均光部(32)用于将所述光源(1)发出的光线向所述本体(21)发散。
  2. 如权利要求1所述的光导装置，其特征在于，所述第一均光部(31)包含多个第一均光单元(34)，所述多个第一均光单元(34)依次首尾相连，所述第一均光单元(34)包括第一连接面(341)、第一入光面(342)、第二入光面(343)、第三入光面(344)、第二连接面(345)及第一反射面(346)；所述第一连接面(341)、第一入光面(342)、第二入光面(343)、第三入光面(344)、第二连接面(345)及第一反射面(346)为从左至右顺次相连。
  3. 如权利要求2所述的光导装置，其特征在于，所述第一入光面(342) 和第二连接面(345)均为水平面，所述第一连接面(341)、第二入光面(343)、第三入光面(344)及第一反射面(346)均为倾斜面；所述第二入光面(343)的倾斜方向和第三入光面(344)的倾斜方向相反，且所述第二入光面(343)和第三入光面(344)的连接处为朝远离所述光源(1)方向凹陷的弧面；所述第一连接面(341)的倾斜方向与第三入光面(344)的倾斜方向相同，所述第一反射面(346)的倾斜方向与第二入光面(343)的倾斜方面相同。
  4. 如权利要求3所述的光导装置，其特征在于，前一个所述第一均光单元(34)的第一反射面(346)与后一个第一均光单元(34)的第一连接面(341)通过第一水平面(347)相连，且所述第一反射面(346)、第一水平面(347)及第一连接面(341)之间形成为向所述本体(21)方向凹陷的凹陷状。
  5. 如权利要求3所述的光导装置，其特征在于，所述第三均光部(33)包含多个第三均光单元(35)，所述多个第三均光单元(35)依次首尾相连，所述第三均光单元(35)包括第三连接面(351)、第四入光面(352)、第五入光面(353)、第六入光面(354)、第四连接面(355)及第二反射面(356)；所述第三连接面(351)、第四入光面(352)、第五入光面(353)、第六入光面(354)、第四连接面(355)及第二反射面(356)为从右至左顺次相连。
  6. 如权利要求5所述的光导装置，其特征在于，所述第四入光面(352)和第四连接面(355)均为水平面，所述第三连接面(351)、第五入光面(353)、第六入光面(354)及第二反射面(356)均为倾斜面；所述第五入光面(353)的倾斜方向和第六入光面(354)的倾斜方向相反，且所述第五入光面(353)和第六入光面(354)的连接处为朝远离所述光源(1)方向凹陷的弧面；所述第三连接面(351)的倾斜方向与第六入光面(354)的倾斜方向相同，所述第二反射面(356)的倾斜方向与第五入光面(353)的倾斜方面相同。
  7. 如权利要求6所述的光导装置，其特征在于，前一个所述第三均光单元(35)的第二反射面(356)与后一个第三均光单元(35)的第三连接面(351)通过第二水平面(357)相连，且所述第二反射面(356)、第二水平面(357)及第三连接面(351)之间形成为向所述本体(21)方向凹陷的凹陷状。
  8. 如权利要求6所述的光导装置，其特征在于，所述第一倾斜部(22)的倾斜方向与所述第一连接面(341)的倾斜方向相同，所述第二倾斜部(23)的倾斜方向与所述第三连接面(351)的倾斜方向相同，所述第一连接面(341)和第三连接面(351)的倾斜方向相反。
  9. 如权利要求8所述的光导装置，其特征在于，以垂直于所述光导板(2)的平面为基准面Y，所述基准面Y为竖直面，所述第一连接面(341)和第三连接面(351)与基准面Y之间的夹角均为A，所述第一倾斜部(22)和第二倾斜部(23)与基准面Y之间的夹角均为B；夹角A大于夹角B。
  10. 如权利要求6所述的光导装置，其特征在于，以垂直于所述光导板(2)的平面为基准面Y，所述基准面Y为竖直面，所述第三入光面(344)和第六入光面(354)与基准面Y之间的夹角均为C，所述第一反射面(346)和第二反射面(356)与基准面Y之间的夹角均为D，夹角C大于夹角D，且所述第一反射面(346)的高度大于第三入光面(344)的高度，所述第二反射面(356)的高度大于第六入光面(354)的高度。
  11. 如权利要求1所述的光导装置，其特征在于，所述均光结构(3)的一侧面上设有扩散花纹(4)。
  12. 如权利要求1所述的光导装置，其特征在于，所述均光结构(3)和所述光源(1)之间还设有均化层。
  13. 一种出光系统，其特征在于，包括：背板，以及如权利要求1-12任一 项所述的光导装置，所述背板与光导板连接。
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