WO2023109306A1 - 一种厚壁件结构、发光装置及发光方式 - Google Patents

一种厚壁件结构、发光装置及发光方式 Download PDF

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Publication number
WO2023109306A1
WO2023109306A1 PCT/CN2022/126204 CN2022126204W WO2023109306A1 WO 2023109306 A1 WO2023109306 A1 WO 2023109306A1 CN 2022126204 W CN2022126204 W CN 2022126204W WO 2023109306 A1 WO2023109306 A1 WO 2023109306A1
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Prior art keywords
light
thick
reflective surface
walled
light source
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PCT/CN2022/126204
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English (en)
French (fr)
Inventor
徐岩修
蒋毛毛
胡文彬
张颖
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常州星宇车灯股份有限公司
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Publication of WO2023109306A1 publication Critical patent/WO2023109306A1/zh

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    • 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
    • F21S43/40—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the combination of reflectors and refractors
    • 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
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/30—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by reflectors
    • F21S41/32—Optical layout thereof
    • 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
    • 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
    • F21S43/30—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by reflectors
    • F21S43/31—Optical layout thereof
    • 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
    • F21W2102/00—Exterior vehicle lighting devices for illuminating purposes
    • 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
    • F21W2103/00—Exterior vehicle lighting devices for signalling purposes
    • 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]

Definitions

  • the invention relates to an optical system structure applied to automobile lamps, and belongs to the technical field of automobile lighting.
  • it relates to a thick-walled part structure, a light emitting device and a light emitting method.
  • LED light source technology has gradually replaced halogen bulbs as the preferred light source for vehicles.
  • the development of LED light source makes the optical design scheme of LED light source, concentrator and thick-walled parts widely used in the design of car lights.
  • designers and customers have more stringent requirements on the uniformity of non-imaging optics.
  • the current structure of thick-walled parts can only emit light within the initial irradiation range of the LED light source, that is, the size of the light-emitting area is approximately equal to the size of the incident area of the light source.
  • the incident area of the light source cannot cover the entire distance.
  • the lighting effect of the optical system of the wall parts will have obvious dark areas, which is difficult to meet the customer's requirements for the uniformity of the car lights.
  • the invention provides a thick-walled part structure, a light emitting device and a light emitting method to solve the above problem.
  • the present invention proposes a thick-walled part structure, which includes a light guide structure body, the light guide structure body has a light source incident surface, a first reflective surface group, a second reflective surface group, and a light output vertically arranged to the light source incident surface surface;
  • the first reflective surface group is suitable for reflecting incident light in a plane perpendicular to the light exit surface and the incident surface of the light source, and forms a central light-emitting area on the light exit surface;
  • the second reflective surface group directs the incident light direction to the light source incident surface
  • Two parallel opposite sides of the light-emitting surface are divergent, and a diffuse light-emitting area is formed on the light-emitting surface, so that the width of light emitted from the light-emitting surface is greater than the width of the incident surface of the light source.
  • the light guide structure body includes a first thick-walled structure and a second thick-walled structure fixed to the first thick-walled structure, and the light-emitting surface is located on a side of the first thick-walled structure.
  • the incident surface of the light source is located on the top of the second thick-walled structure, and the first reflective surface group is one or more sequentially connected reflective surfaces on the second thick-walled structure.
  • the plane where the incident surface of the light source is located be the XOY plane
  • the plane where the light-emitting surface is located be the YOZ plane
  • each of the reflective surfaces is perpendicular to the XOZ plane, so that the incident light is reflected in the XOZ plane.
  • the light guide structure body also includes a third thick-walled structure fixed to the first thick-walled structure, and the second reflective surface group is sequentially connected to one or more of the third thick-walled structures reflective surfaces, and each reflective surface is perpendicular to the light-emitting surface, so that the incident light is reflected in the YOZ plane; the last reflective surface protrudes from the incident surface of the light source along the width direction.
  • the first reflective surface group includes reflective surface 1, reflective surface 2 and reflective surface 3 connected in sequence, reflective surface 1 and reflective surface 3 are respectively located on two opposite sides of the incident surface of the light source, and the first thick-walled part The structure is fixed on the reflective surface one.
  • the light source enters the second thick-walled structure through the incident surface of the light source, and part of the light source is reflected by the first reflective surface, the second reflective surface and the third reflective surface in turn, and then emitted from the light output surface.
  • first reflective surface and the third reflective surface are arranged in parallel, and the first reflective surface and the second reflective surface are arranged perpendicularly.
  • the second reflective surface group includes sequentially connected reflective surface four and reflective surface five, reflective surface four is located directly below the incident surface of the light source, and reflective surface five protrudes laterally from the incident surface of the light source.
  • the first thick-walled part has a reflective surface six located directly above the five reflective surface structurally.
  • the top surface of the third thick-walled structure is connected to the bottom surface of the first thick-walled structure; the reflective surface 6 and the light-emitting surface are two opposite sides of the first thick-walled structure.
  • the light source enters the second thick-walled part structure through the incident surface of the light source, and part of the light source is reflected by the fourth reflective surface, the fifth reflective surface and the sixth reflective surface in turn, and then emitted from the light output surface.
  • third thick-walled member structures there are two third thick-walled member structures symmetrically, and the symmetry axes of the two third thick-walled member structures are parallel to the XOZ plane, and reflective surfaces six and five reflective surfaces are arranged one by one.
  • sixth reflective surface and the first reflective surface are located in the same plane.
  • the reflective surface 6 is perpendicular to the XOZ plane
  • the structure of the third thick-walled part is an isosceles triangular prism structure
  • the reflective surface 4 and the reflective surface 5 are two isosceles sides of the isosceles triangular prism structure.
  • the third reflective surface and the sixth reflective surface are patterned surfaces.
  • the present invention also proposes a light emitting device, comprising a light source, a light concentrator and the above-mentioned thick-walled structure, the light concentrator is located above the incident surface of the light source, and the light source is located above the light concentrator.
  • the present invention also proposes a light-emitting method, which uses the above-mentioned thick-walled part structure, including the following steps: S1: the light source enters the second thick-walled part structure through the incident surface of the light source; S2: enters the second thick-walled part structure Part of the light beams are reflected by reflective surface 1, reflective surface 2 and reflective surface 3 in turn, and then emitted from the middle of the light-emitting surface to form a central light-emitting area; S3: the rest of the light beams are reflected by reflective surface 4, reflective surface 5 and reflective surface The light-emitting surface emits light and forms a diffuse light-emitting area.
  • the thick-walled part structure, light-emitting device and light-emitting method of the present invention reflect the incident light in two directions through the first reflective surface group and the second reflective surface group respectively, and the first reflective surface group is on the vertical light exit surface.
  • the incident light is reflected in the plane of the incident surface of the light source, and this part of the beam is limited within the initial irradiation width of the light source to form a central light-emitting area;
  • the second reflective surface group directs the incident light to two opposite sides parallel to the light-emitting surface In the direction of divergence, this part of the light beam diffuses outside the initial irradiation width of the light source, thereby forming a diffuse light-emitting area on the light-emitting surface.
  • the present invention not only ensures the light in the central area, but also increases Diffuse the luminous area to make the luminous width larger than the initial irradiation width of the light source.
  • the distance between the light sources is large, the area between the two light sources can be completely illuminated without dark areas, which meets the customer's uniform luminous demand.
  • the thick-walled part structure of the present invention is composed of three regular thick-walled part structures, the first thick-walled part structure is used for light output, the second thick-walled part structure is used for light input, and the incident light is reflected to emit light In the middle of the surface, the third thick-walled structure is used to reflect incident light to both sides of the light-emitting surface.
  • Fig. 1 is a perspective view (viewed from a side) of a specific embodiment of a light-emitting device according to the present invention
  • FIG 2 is a perspective view of a specific embodiment of the light-emitting device of the present invention (observed from the bottom surface, the light source is not shown);
  • FIG 3 is a perspective view of a specific embodiment of the light-emitting device of the present invention (observed from the top surface, the light source is not shown);
  • Fig. 4 is a left side view of the light-emitting device according to the present invention (including the reflection route of the first reflection group, and the light source is not shown);
  • Fig. 5 is a front view of the light-emitting device according to the present invention (including the reflection route of the second reflection group);
  • Fig. 6 is a top view of the light emitting device of the present invention (the light source is not shown).
  • a thick-walled structure as shown in Figures 1-6, includes a light guide structure body, the light guide structure body has a light source incident surface 201, a first reflective surface group, a second reflective surface group, and a light source incident surface
  • the surface 201 is vertical to the light-emitting surface 101;
  • the first reflective surface group is suitable for reflecting the incident light 4 in the plane perpendicular to the light-emitting surface 101 and the light source incident surface 201, and forms a central light-emitting area on the light-emitting surface 101;
  • the second reflective surface group The two reflective surface groups diverge the incident light 4 to two opposite sides parallel to the light-emitting surface 101, and form a diffuse light-emitting area on the light-emitting surface 101, so that the light-emitting width on the light-emitting surface 101 is larger than the width of the incident surface 201 of the light source.
  • the three are perpendicular to each other, so the positions of the three can be expressed in the form of a coordinate system, assuming, as shown in the figure 2-As shown in Figure 5, the incident direction of the light source 9 is the positive direction of the Z axis, and the light output direction is the positive direction of the X axis, then the plane where the light source incident surface 201 is located is the XOY plane, the plane where the light output surface 101 is located is the YOZ plane, and the width of the light is is the length of the light-emitting area along the Y-axis.
  • the surface where the reflection route of the light source 9 under the action of the first reflection surface group is the XOZ surface, after the light source 9 passes through the light source incident surface 201 vertically downward along the Z axis, part of the light beam is first reflected The surface group is reflected multiple times in the XOZ plane. Since the light beam has no Y-direction displacement in the first reflecting surface group, the width of the light-emitting area presented on the light-emitting surface 101 is the same as the width of the light source incident surface 201, which is called the central light-emitting area. .
  • the surface where the reflection route of the light source 9 under the action of the second reflection surface group is the YOZ surface, after the light source 9 passes through the light source incident surface 201 vertically downward along the Z axis, part of the light beam is reflected by the second reflection
  • the quilt is reflected multiple times in the YOZ plane.
  • the light beam has a displacement in the Y direction, and diverges along the width direction relative to the initial light beam. Therefore, the light-emitting area presented on the light-emitting surface 101 is located on both sides of the central light-emitting area, which is called diffusion. Luminous area.
  • the combination of the central light-emitting area and the diffused light-emitting area forms the entire area of the light-emitting surface. Compared with the current thick-walled structure, the light-emitting width is greatly increased. When the distance between the light sources 9 is large, the space between adjacent light sources 9 can be filled by the diffused light-emitting area. The spacing makes the entire light-emitting surface evenly illuminated without dark areas.
  • the reflective surfaces in the first group of radiating surfaces and the second group of reflective surfaces are preferably total reflection surfaces.
  • the formation of the central light-emitting area can be realized by, but not limited to, the following structures:
  • the light guide structure body includes a first thick-walled structure 1 and a second thick-walled structure 2 fixed to the first thick-walled structure 1 , and the light-emitting surface 101 is located on a side of the first thick-walled structure 1 .
  • the incident surface 201 of the light source is located on the top of the second thick-walled structure 2, and the first reflective surface group is one or more sequentially connected reflective surfaces on the second thick-walled structure 2, each of which is connected to the XOZ surface vertical so that the incident light 4 is reflected in the XOZ plane.
  • the light beam usually propagates toward the reflective surface. When the light beam encounters the reflective surface, it is reflected and changes its direction of propagation.
  • the reflective surface When the reflective surface is perpendicular to the XOZ surface, the light beam travels along the Z direction to one of the reflective surfaces. There is an included angle in the XOZ plane, so the light beam is only reflected in the XOZ plane, and the light-emitting area presented on the light-emitting surface is mainly located in the middle of the Y direction.
  • the first reflective surface group includes reflective surface one 202, reflective surface two 203, and reflective surface three 204 connected in sequence, and reflective surface one 202 and reflective surface three 204 are respectively located on two opposite sides of the light source incident surface 201 , the first thick-walled part structure 1 is fixed on the reflective surface 1 202, the light source 9 enters the second thick-walled part structure 2 through the light source incident surface 201, and part of the light source 9 passes through the reflective surface 1 202, the reflective surface 203 and the reflective surface 3 in sequence 204 is emitted from the light-emitting surface 101 after reflection.
  • the second thick-walled part structure 2 is a hexahedral structure, and the first reflection surface 202, the second reflection surface 203, the third reflection surface 204 and the incident surface 201 of the light source are sequentially connected to form four side walls, as shown in the figure
  • the reflection path diagram of the first reflection group shown in 4 since the light source 9 is vertically incident (that is, the incident light 4 is vertical), in order to enable the incident light 4 to reach the reflection surface 1 202, the distance between the reflection surface 1 202 and the light source incident surface 201
  • the included angle should be an acute angle, that is, the reflection surface 1 202 intersects the incident light 4, and the intersection point is located below the light source incident surface 201.
  • the first thick-walled part structure 1 connected to the reflective surface 1 202 is also a slope that gradually inclines toward the negative direction of the X axis along the positive direction of the Z axis.
  • a thick-walled structure 1 has a longer length along the X direction, which makes the light beam more stable after it is emitted.
  • the first reflective surface 202 is arranged parallel to the third reflective surface 204, and the first reflective surface 202 is arranged perpendicular to the second reflective surface 203, so that the incident light 4 can be directed along the positive direction of the Z axis, and the light output direction is mainly along the positive direction of the X axis.
  • the incident light 4 can be directed along the positive direction of the Z axis, and the light output direction is mainly along the positive direction of the X axis.
  • the formation of the diffuse light-emitting area can be realized by, but not limited to, the following structures:
  • the light guide structure body also includes a third thick-walled structure 3 fixed to the first thick-walled structure 1 , and the second reflective surface group is one or more of the third thick-walled structures 3 successively connected reflective surfaces, and each reflective surface is perpendicular to the light-emitting surface 101, so that the incident light 4 is reflected in the YOZ plane; the last reflective surface protrudes from the light source incident surface 201 along the width direction.
  • the light beam When the light beam irradiates the reflective surface in the third thick-walled part structure 3, the light beam has an included angle only in the YOZ plane with respect to the reflective surface, so the light beam is only reflected in the YOZ plane, and has displacements in both the Y and Z directions , and because the last reflective surface protrudes from the light source incident surface 201 along the width direction, the light beam can be displaced to the outside of the original light source 9 area in the Y direction, and the light emitting area presented on the light emitting surface is mainly located at the outer edge of the Y direction .
  • the second reflective surface group includes sequentially connected reflective surface 4 301 and reflective surface 5 302, reflective surface 4 301 is located directly below the light source incident surface 201, reflective surface 5 302 protrudes laterally from the light source incident surface 201 , the first thick-walled member structure 1 has a reflective surface six 102 directly above the reflective surface five 302 .
  • the top surface of the third thick-walled member structure 3 is connected to the bottom surface of the first thick-walled member structure 1; the reflective surface 6 102 and the light-emitting surface 101 are two opposite sides of the first thick-walled member structure 1, that is, the reflective surface 6 102 Opposite to the light-emitting surface 101 , the light beam reflected by the reflective surface 102 is emitted from the light-emitting surface 101 .
  • the light source 9 enters the second thick-walled part structure 2 through the light source incident surface 201 , and part of the light source 9 is reflected by the reflection surface 4 301 , the reflection surface 5 302 and the reflection surface 6 102 in turn, and then emits from the light exit surface 101 .
  • the third thick-walled structure 3 is a triangular prism structure, and the top surfaces of the reflective surface 4 301, the reflective surface 5 302 and the third thick-walled structure 3 are sequentially connected to form a triangular prism
  • the three sides of , reflective surface 4 301, reflective surface 5 302, and the third thick-walled structure 3 are rotated around the X-axis (light source incident surface 201, reflective surface 1 202, and reflective surface 2 in the second thick-walled structure 2 203 and reflective surface 3 204 are rotated and arranged around the Y axis)
  • reflective surface 4 301 is located below the light source incident surface 201, as shown in the reflection path diagram of the first reflective group shown in Figure 5, the incident light 4 can directly reach along the Z direction Reflecting surface 4 301, and reflected by reflecting surface 4 301 onto reflecting surface 5 302 protruding along the Y direction (this light beam is called the third reflected light beam 7), and the third reflected light beam 7 has been realized after reaching reflecting
  • the reflective surface 6 102 is perpendicular to the XOZ plane
  • the third thick-walled structure 3 is an isosceles triangular prism structure
  • the reflective surface 4 301 and the reflective surface 5 302 are two isosceles of the isosceles triangular prism structure side.
  • the third reflected light beam 7 is shifted along the Y direction, and the third reflected light beam 7 has a deflection angle in the Y direction, because the reflective surface 4 301 and the reflective surface Five 302 is symmetrically arranged, so the reflective surface 5 302 can correct the Y-direction deflection angle of the third radiation beam, and reflect the fourth reflected beam 8 along the Z direction onto the reflective surface 6 102, because the reflective surface 6 102 and the XOZ surface It is vertical, so the light beam reflected by the reflective surface 6 102 no longer shifts in the Y direction, but only in the X direction.
  • the reflective surface 6 102 is mainly used to reflect the light beam to the light-emitting surface.
  • the third thick-walled part structure 3 can be provided with only one, or two can be arranged symmetrically.
  • the diffuse light-emitting area is located on one side of the central light-emitting area, and only on one side in the width direction. Diffusion effect is produced.
  • two third thick-walled member structures 3 are symmetrically arranged, then the diffusion effect can be produced on both sides in the width direction.
  • two third thick-walled member structures 3 are preferably symmetrically arranged, and the two second thick-walled member structures
  • the symmetry axis of the three-thick-walled structure 3 is parallel to the XOZ plane, and the sixth reflective surface 102 and the fifth reflective surface 302 are provided in one-to-one correspondence.
  • the reflective surface six 102 and the reflective surface one 202 are located in the same plane.
  • the first thick-walled member structure 1 is a rectangular prism structure with one side inclined, and the reflective surface six 102 and the surface connected to the reflective surface one 202 are located on the inclined surface.
  • both reflective surface 3 204 and reflective surface 6 102 are patterned surfaces, and the patterned surfaces can have structures such as corn grain patterns, vertical stripes, horizontal stripes, skin patterns and small dots, and the patterned surfaces can diffuse light. Make the light radiation range wider and more uniform.
  • a lighting device :
  • FIG. 1 it includes a light source 9 , a concentrator 10 and the thick-walled structure described above.
  • the concentrator 10 is located above the light source incident surface 201 , and the light source 9 is located above the concentrator 10 .
  • the light source 9 is usually an LED light source.
  • LED light sources with light colors of white light, yellow light, red light, blue light and green light can be used.
  • the LED light source is electrically connected to the circuit board, and the concentrator 10 can be a commonly used circular concentrator 10 or a special-shaped concentrator 10, such as an asymmetric concentrator 10, a stretched concentrator 10 and a nested concentrator.
  • the concentrator 10 and the thick-walled structure can be an integrated structure or two independent structures. Placing the LED light source at the focal point of the light concentrator 10 can make the light emitted by the LED light source pass through the light concentrator 10 and be collimated and emitted. The light emitted by the LED light source is collimated by the light concentrator 10, and the light is reflected to the light-emitting surface 101 of the third thick-walled structure 3 by using the first thick-walled structure 1 and the second thick-walled structure 2, so as to reach the LED light source Under the condition of large spacing, the effect of uniform light output can still be achieved by the thick-walled part structure.
  • This method uses the thick-walled part structure described above, including the following steps:
  • the light source 9 enters the second thick-walled structure 2 through the light incident surface 201 .
  • connection should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; It can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediary.
  • connection should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; It can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediary.
  • plural means two or more.

Abstract

一种厚壁件结构、发光装置及发光方式，包括导光结构本体，导光结构本体具有光源入射面(201)、第一反射面组、第二反射面组、和与光源入射面(201)垂直布置的出光面(101)；第一反射面组适于在垂直出光面(101)和光源入射面(201)的平面内反射入射光，并在出光面(101)上形成中心发光区；第二反射面组将入射光向与出光面(101)平行的两个相对侧向发散，并在出光面(101)上形成扩散发光区，以使出光面(101)上的发光宽度大于光源入射面(201)的宽度。不仅保证了中心区域的发光，同时还增加了扩散发光区，使发光宽度大于光源的初始照射宽度，当光源间距较大时，可以使两个光源之间的区域完全照射，不会出现暗区，满足客户的均匀发光需求。

Description

一种厚壁件结构、发光装置及发光方式 技术领域
本发明涉及应用于汽车车灯的光学系统结构，属于汽车照明技术领域。尤其涉及一种厚壁件结构、发光装置及发光方式。
背景技术
LED光源技术的成熟发展逐渐取代卤素灯泡成为车用首选光源。LED光源的发展，使得LED光源与聚光器、厚壁件的光学设计方案在车灯设计中应用范围较广。但是随着对非成像光学的深入研究，设计师以及客户对非成像光学的均匀性有了更加严苛的要求。
目前的厚壁件结构仅能在LED光源的初始照射范围内发光，也就是发光区域的大小近似等于光源入射区域的大小，当LED光源间距较大时，光源入射区域无法覆盖整个间距，目前厚壁件光学系统的点亮效果则会有明显的暗区，难以满足客户对车灯均匀性的要求。
为此，需要设计一种出光均匀的厚壁件结构来实现LED大间距均匀点亮的出光效果。
发明内容
为了解决现有技术中的厚壁件结构仅能在LED光源的初始照射范围内发光，当LED光源间距较大时，目前厚壁件光学系统的点亮效果会有明显的暗区，无法满足客户对车灯均匀性要求的技术问题，本发明提供了一种厚壁件结构、发光装置及发光方式来解决上述问题。
本发明提出一种厚壁件结构，包括导光结构本体，所述导光结构本体具有光源入射面、第一反射面组、第二反射面组、和与所述光源入射面垂直布置的 出光面；所述第一反射面组适于在垂直出光面和光源入射面的平面内反射入射光，并在出光面上形成中心发光区；所述第二反射面组将入射光向与所述出光面平行的两个相对侧向发散，并在出光面上形成扩散发光区，以使所述出光面上的发光宽度大于所述光源入射面的宽度。
进一步的，所述导光结构本体包括第一厚壁件结构和与第一厚壁件结构固定的第二厚壁件结构，所述出光面位于第一厚壁件结构的侧面。
所述光源入射面位于第二厚壁件结构的顶部，所述第一反射面组为第二厚壁件结构上的一个或者多个依次相接的反射面。令光源入射面所在平面为XOY面，出光面所在平面为YOZ面，则每个所述反射面与XOZ面垂直，以使入射光在XOZ面内反射。
进一步的，所述导光结构本体还包括与第一厚壁件结构固定的第三厚壁件结构，所述第二反射面组为第三厚壁件结构上的一个或者多个依次相接的反射面，且每个反射面与出光面垂直，以使入射光在YOZ面内反射；最后一个所述反射面沿宽度方向凸出所述光源入射面。
进一步的，所述第一反射面组包括顺序相接的反射面一、反射面二和反射面三，反射面一与反射面三分别位于光源入射面的两个相对侧面，第一厚壁件结构固定于反射面一上。
光源经光源入射面进入第二厚壁件结构，部分光源依次经反射面一、反射面二和反射面三反射后从出光面射出。
进一步的，所述反射面一与反射面三平行布置，反射面一与反射面二垂直布置。
进一步的，所述第二反射面组包括顺序相接的反射面四和反射面五，反射面四位于光源入射面的正下方，反射面五沿侧向凸出所述光源入射面，所述第 一厚壁件结构上具有位于反射面五正上方的反射面六。
第三厚壁件结构的顶面与第一厚壁件结构的底面连接；反射面六和出光面为第一厚壁件结构的两个相对侧面。
光源经光源入射面进入第二厚壁件结构，部分光源依次经反射面四、反射面五和反射面六反射后从出光面射出。
进一步的，所述第三厚壁件结构对称设置有两个，且两个第三厚壁件结构的对称轴与XOZ面平行，反射面六与反射面五一一对应设置。
进一步的，所述反射面六与反射面一位于同一平面内。
进一步的，反射面六与XOZ面垂直，所述第三厚壁件结构为等腰三棱柱结构，且反射面四和反射面五为所述等腰三棱柱结构的两个等腰侧面。
进一步的，所述反射面三和反射面六均为花纹面。
本发明还提出一种发光装置，包括光源、聚光器和以上所述的厚壁件结构，所述聚光器位于所述光源入射面的上方，所述光源位于聚光器的上方。
本发明还提出一种发光方式，该方式使用以上所述的厚壁件结构，包括如下步骤：S1：光源经光源入射面进入第二厚壁件结构；S2：进入第二厚壁件结构的部分光束依次经反射面一、反射面二和反射面三反射后从出光面的中部射出，并形成中心发光区；S3：其余光束依次经反射面四、反射面五和反射面六反射后从出光面射出，并形成扩散发光区。
本发明的有益效果是：
(1)本发明所述的厚壁件结构、发光装置及发光方式，分别通过第一反射面组和第二反射面组将入射光沿两个方向反射，第一反射面组在垂直出光面和光源入射面的平面内反射入射光，该部分光束被限定在光源的初始照射宽度范围内，形成中心发光区；第二反射面组将入射光向与所述出光面平行的两个相 对侧向发散，该部分光束向光源的初始照射宽度范围外扩散，从而在出光面上形成扩散发光区，与目前的厚壁件结构相比，本发明不仅保证了中心区域的发光，同时还增加了扩散发光区，使发光宽度大于光源的初始照射宽度，当光源间距较大时，可以使两个光源之间的区域完全照射，不会出现暗区，满足客户的均匀发光需求。
(2)本发明所述厚壁件结构由三个规则的厚壁件结构组成，第一厚壁件结构用于出光，第二厚壁件结构用于入光，并将入射光反射至发光面的中部，第三厚壁件结构用于将入射光反射至发光面的两边。
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是本发明所述的发光装置的具体实施方式的立体图(从侧面观察)；
图2是本发明所述的发光装置的具体实施方式的立体图(从底面观察、光源未示意)；
图3是本发明所述的发光装置的具体实施方式的立体图(从顶面观察、光源未示意)；
图4是本发明所述的发光装置的左视图(包含第一反射组的反射路线、光源未示意)；
图5是本发明所述的发光装置的主视图(包含第二反射组的反射路线)；
[根据细则26改正 16.11.2022]
图6是本发明所述的发光装置的俯视图(光源未示意)。
图中，1、第一厚壁件结构，101、出光面，102、反射面六，2、第二厚壁件结构，201、光源入射面，202、反射面一，203、反射面二，204、反射面三， 3、第三厚壁件结构，301、反射面四，302、反射面五，4、入射光，5、第一反射光束，6、第二反射光束，7、第三反射光束，8、第四反射光束，9、光源，10、聚光器。
具体实施方式
下面详细描述本发明的实施例，所述实施例的示例在附图中示出，其中自始至终相同或类似的标号表示相同或类似的元件或具有相同或类似功能的元件。下面通过参考附图描述的实施例是示例性的，仅用于解释本发明，而不能理解为对本发明的限制。
一种厚壁件结构，如图1-图6所示，包括导光结构本体，所述导光结构本体具有光源入射面201、第一反射面组、第二反射面组、和与光源入射面201垂直布置的出光面101；所述第一反射面组适于在垂直出光面101和光源入射面201的平面内反射入射光4，并在出光面101上形成中心发光区；所述第二反射面组将入射光4向与出光面101平行的两个相对侧向发散，并在出光面101上形成扩散发光区，以使出光面101上的发光宽度大于光源入射面201的宽度。
由于光源入射面201、发光面、光源9在所述第一反射面组作用下的反射路线所在面，三者相互垂直，因此可以以坐标系形式对三者的位置进行表示，假设，如图2-图5所示，光源9入射的方向为Z轴正向，出光方向为X轴正向，则光源入射面201所在平面为XOY面，出光面101所在平面为YOZ面，发光的宽度则为发光区域沿Y轴的长度。
如图4所示，光源9在所述第一反射面组作用下的反射路线所在面为XOZ面，光源9沿Z轴竖直向下穿过光源入射面201后，部分光束经第一反射面组在XOZ面内多次反射，由于光束在第一反射面组内没有Y向的位移，因此呈现 在出光面101上的发光区域宽度与光源入射面201的宽度相同，称为中心发光区。
如图5所示，光源9在所述第二反射面组作用下的反射路线所在面为YOZ面，光源9沿Z轴竖直向下穿过光源入射面201后，部分光束经第二反射面组在YOZ面内多次反射，反射过程中光束具有Y向的位移，相对于初始光束沿宽度方向发散，因此呈现在出光面101上的发光区域位于中心发光区的两侧，称为扩散发光区。
中心发光区和扩散发光区组合形成发光面的整个区域，与目前的厚壁件结构相比，发光宽度大大增加，当光源9间距较大时，通过扩散发光区可以填补相邻光源9之间的间距，使整个发光面均匀发光，不会出现暗区。
第一放射面组和第二反射面组中的反射面优选均为全反射面。
中心发光区的形成可以但不仅限于采用如下结构实现：
所述导光结构本体包括第一厚壁件结构1和与第一厚壁件结构1固定的第二厚壁件结构2，出光面101位于第一厚壁件结构1的侧面。光源入射面201位于第二厚壁件结构2的顶部，第一反射面组为第二厚壁件结构2上的一个或者多个依次相接的反射面，每个所述反射面与XOZ面垂直，以使入射光4在XOZ面内反射。光束通常指向反射面方向传播，光束遇到反射面后被反射并改变传播方向，当反射面与XOZ面垂直时，光束沿Z向传播至其中一个反射面上后，光束相对于反射面仅在XOZ平面内具有夹角，因此光束仅在XOZ平面内反射，呈现在发光面上的发光区域主要位于Y向的中部。
具体的，所述第一反射面组包括顺序相接的反射面一202、反射面二203和反射面三204，反射面一202与反射面三204分别位于光源入射面201的两个相对侧面，第一厚壁件结构1固定于反射面一202上，光源9经光源入射面201 进入第二厚壁件结构2，部分光源9依次经反射面一202、反射面二203和反射面三204反射后从出光面101射出。如图1-图4所示，第二厚壁件结构2为六面体结构，反射面一202、反射面二203、反射面三204和光源入射面201依次相接围成四面侧壁，如图4所示的第一反射组的反射路径图，由于光源9垂直入射(即入射光4垂直)，为了使入射光4能够到达反射面一202，反射面一202与光源入射面201之间的夹角应当为锐角，也就是反射面一202与入射光4相交，并且相交点位于光源入射面201的下方，同理，反射面二203与经反射面一202反射后的光线(即第一反射光束5)相交，反射面三204则与经反射面二203反射后的光线(即第二反射光束6)相交。与反射面一202连接的第一厚壁件结构1也相应为沿Z轴正向逐渐向X轴负向倾斜的斜面，反射面一202和反射面三204均与出光面101正对，第一厚壁件结构1沿X向的长度较长，使光束射出后更稳定。
作为优选的，反射面一202与反射面三204平行布置，反射面一202与反射面二203垂直布置，这样可以使入射光4沿Z轴正向的前提下，出光方向主要沿X轴正向。
扩散发光区的形成可以但不仅限于采用如下结构实现：
所述导光结构本体还包括与第一厚壁件结构1固定的第三厚壁件结构3，所述第二反射面组为第三厚壁件结构3上的一个或者多个依次相接的反射面，且每个反射面与出光面101垂直，以使入射光4在YOZ面内反射；最后一个所述反射面沿宽度方向凸出所述光源入射面201。当光束照射到第三厚壁件结构3中的反射面时，光束相对于反射面仅在YOZ平面内具有夹角，因此光束仅在YOZ平面内反射，并且在Y向和Z向均有位移，又由于最后一个所述反射面沿宽度方向凸出光源入射面201，因此光束可以在Y向位移至原有的光源9区域外， 呈现在发光面上的发光区域主要位于Y向的外缘。
具体的，所述第二反射面组包括顺序相接的反射面四301和反射面五302，反射面四301位于光源入射面201的正下方，反射面五302沿侧向凸出光源入射面201，第一厚壁件结构1上具有位于反射面五302正上方的反射面六102。第三厚壁件结构3的顶面与第一厚壁件结构1的底面连接；反射面六102和出光面101为第一厚壁件结构1的两个相对侧面，也就是反射面六102与出光面101正对，经反射面六102反射的光束从出光面101射出。
光源9经光源入射面201进入第二厚壁件结构2，部分光源9依次经反射面四301、反射面五302和反射面六102反射后从出光面101射出。
如图1-图3、图5所示，第三厚壁件结构3为三棱柱结构，反射面四301、反射面五302和第三厚壁件结构3的顶面依次相接形成三棱柱的三个侧面，反射面四301、反射面五302和第三厚壁件结构3绕X轴旋转布置(第二厚壁件结构2中的光源入射面201、反射面一202、反射面二203和反射面三204则绕Y轴旋转布置)，反射面四301位于光源入射面201的下方，如图5所示的第一反射组的反射路径图，入射光4可以沿Z向直接到达反射面四301，并经反射面四301反射到沿Y向凸出的反射面五302上(此光束称为第三反射光束7)，第三反射光束7到达反射面五302后则已经实现了宽度的拓宽，经反射面五302反射后的光束(称为第四反射光束8)再经过与发光面正对的反射面六102的反射后从发光面射出。
作为优选的，反射面六102与XOZ面垂直，第三厚壁件结构3为等腰三棱柱结构，且反射面四301和反射面五302为所述等腰三棱柱结构的两个等腰侧面。当入射光4从反射面四301反射至反射面五302后，第三反射光束7沿Y向产生偏移，并且第三反射光束7具有Y向的偏转角度，由于反射面四301与 反射面五302对称布置，因此反射面五302可以将第三放射光束的Y向偏转角度矫正，并以沿Z向的第四反射光束8反射至反射面六102上，由于反射面六102与XOZ面垂直，因此反射面六102反射后的光束不再发生Y向偏移，仅发生X向偏移，反射面六102主要用于将光束反射至发光面上。
第三厚壁件结构3可以仅设置一个，也可以对称设置有两个，当第三厚壁件结构3仅设置一个时，扩散发光区位于中心发光区的一侧，仅在宽度方向一侧产生扩散效果，当第三厚壁件结构3对称设置有两个时，则可以在宽度方向的两侧均产生扩散效果，因此第三厚壁件结构3优选对称设置两个，且两个第三厚壁件结构3的对称轴与XOZ面平行，反射面六102与反射面五302一一对应设置。
作为优选的，反射面六102与反射面一202位于同一平面内。此时第一厚壁件结构1为一面倾斜的四棱柱结构，反射面六102和与反射面一202连接的表面则位于该倾斜表面上。
作为优选的，反射面三204和反射面六102均为花纹面，所述花纹面可以是玉米粒花纹、竖条纹、横条纹、皮纹和小圆点等结构，花纹面可以将光线扩散，使光线辐射范围更广，更均匀。
一种发光装置：
如图1所示，包括光源9、聚光器10和以上所述的厚壁件结构，聚光器10位于光源入射面201的上方，光源9位于聚光器10的上方。光源9通常为LED光源，作为车灯光源9使用时应符合GB-4785对不同功能灯具光色的要求，例如可以使用光色为白光、黄光、红光、蓝光和绿光的LED光源。LED光源与线路板电连接，聚光器10可以是常用的圆形聚光器10也可以是异形聚光器10，如非对称聚光器10、拉伸型聚光器10和嵌套型聚光器10等。聚光器10和厚壁 件结构可以是一体式结构或两个独立的结构。将LED光源放置在聚光器10的焦点上，可以使LED光源发出的光经过聚光器10准直出射。LED光源发出的光经过聚光器10准直，利用第一厚壁件结构1和第二厚壁件结构2将光线反射至第三厚壁件结构3的出光面101均匀出射，达到LED光源在大间距条件下仍能使所述厚壁件结构均匀出光的效果。
一种发光方式：
该方式使用以上所述的厚壁件结构，包括如下步骤：
S1：光源9经光源入射面201进入第二厚壁件结构2。
S2：进入第二厚壁件结构2的部分光束依次经反射面一202、反射面二203和反射面三204反射后从出光面101的中部射出，并形成中心发光区。
S3：其余光束依次经反射面四301、反射面五302和反射面六102反射后从出光面101射出，并形成扩散发光区。
在本发明的描述中，需要理解的是，术语“宽度”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，术语“第一”、“第二”等仅用于描述目的，而不能理解为指示或暗示相对重要性。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“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。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。此外，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。
在本说明书中，对所述术语的示意性表述不一定指的是相同的实施例。而且，描述的具体特征、结构、材料或者特点可以在任何的一个或多个实施例中以合适的方式结合。
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，必须要根据权利要求范围来确定其技术性范围。

Claims (12)

  1. 一种厚壁件结构，其特征在于：包括导光结构本体，所述导光结构本体具有光源入射面(201)、第一反射面组、第二反射面组、和与所述光源入射面(201)垂直布置的出光面(101)；所述第一反射面组适于在垂直出光面(101)和光源入射面(201)的平面内反射入射光，并在出光面(101)上形成中心发光区；所述第二反射面组将入射光向与所述出光面(101)平行的两个相对侧向发散，并在出光面(101)上形成扩散发光区，以使所述出光面(101)上的发光宽度大于所述光源入射面(201)的宽度。
  2. 根据权利要求1所述的厚壁件结构，其特征在于：所述导光结构本体包括第一厚壁件结构(1)和与第一厚壁件结构(1)固定的第二厚壁件结构(2)，所述出光面(101)位于第一厚壁件结构(1)的侧面；
    所述光源入射面(201)位于第二厚壁件结构(2)的顶部，所述第一反射面组为第二厚壁件结构(2)上的一个或者多个依次相接的反射面；令光源入射面(201)所在平面为XOY面，出光面(101)所在平面为YOZ面，则每个所述反射面与XOZ面垂直，以使入射光在XOZ面内反射。
  3. 根据权利要求2所述的厚壁件结构，其特征在于：所述导光结构本体还包括与第一厚壁件结构(1)固定的第三厚壁件结构(3)，所述第二反射面组为第三厚壁件结构(3)上的一个或者多个依次相接的反射面，每个反射面与出光面(101)垂直，以使入射光在YOZ面内反射；最后一个所述反射面沿宽度方向凸出所述光源入射面(201)。
  4. 根据权利要求3所述的厚壁件结构，其特征在于：所述第一反射面组包括顺序相接的反射面一(202)、反射面二(203)和反射面三(204)，反射面一(202)与反射面三(204)分别位于光源入射面(201)的两个相对侧面，第一厚壁件结构(1)固定于反射面一(202)上；
    光源(9)经光源入射面(201)进入第二厚壁件结构(2)，部分光源(9)依次经反射面一(202)、反射面二(203)和反射面三(204)反射后从出光面(101)射出。
  5. 根据权利要求4所述的厚壁件结构，其特征在于：所述反射面一(202)与反射面三(204)平行布置，反射面一(202)与反射面二(203)垂直布置。
  6. 根据权利要求4所述的厚壁件结构，其特征在于：所述第二反射面组包括顺序相接的反射面四(301)和反射面五(302)，反射面四(301)位于光源入射面(201)的正下方，反射面五(302)沿侧向凸出所述光源入射面(201)，所述第一厚壁件结构(1)上具有位于反射面五(302)正上方的反射面六(102)；
    第三厚壁件结构(3)的顶面与第一厚壁件结构(1)的底面连接；反射面六(102)和出光面(101)为第一厚壁件结构(1)的两个相对侧面，
    光源(9)经光源入射面(201)进入第二厚壁件结构(2)，部分光源(9)依次经反射面四(301)、反射面五(302)和反射面六(102)反射后从出光面(101)射出。
  7. 根据权利要求6所述的厚壁件结构，其特征在于：所述第三厚壁件结构(3)对称设置有两个，且两个第三厚壁件结构(3)的对称轴与XOZ面平行，反射面六(102)与反射面五(302)一一对应设置。
  8. 根据权利要求6所述的厚壁件结构，其特征在于：所述反射面六(102)与反射面一(202)位于同一平面内。
  9. 根据权利要求6所述的厚壁件结构，其特征在于：所述反射面六(102)与XOZ面垂直，第三厚壁件结构(3)为等腰三棱柱结构，且反射面四(301)和反射面五(302)为所述等腰三棱柱结构的两个等腰侧面。
  10. 根据权利要求4所述的厚壁件结构，其特征在于：所述反射面三(204) 和反射面六(102)均为花纹面。
  11. 一种发光装置，其特征在于：包括光源(9)、聚光器(10)和权利要求1-10任一项所述的厚壁件结构，所述聚光器(10)位于所述光源入射面(201)的上方，所述光源(9)位于聚光器(10)的上方。
  12. 一种发光方式，其特征在于：该方式使用权利要求1-10任一项所述的厚壁件结构，包括如下步骤：
    S1：光源(9)经光源入射面(201)进入第二厚壁件结构(2)；
    S2：进入第二厚壁件结构(2)的部分光束依次经反射面一(202)、反射面二(203)和反射面三(204)反射后从出光面(101)的中部射出，并形成中心发光区；
    S3：其余光束依次经反射面四(301)、反射面五(302)和反射面六(102)反射后从出光面(101)射出，并形成扩散发光区。
PCT/CN2022/126204 2021-12-13 2022-10-19 一种厚壁件结构、发光装置及发光方式 WO2023109306A1 (zh)

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