CN215892231U - Light guide, vehicle lamp and vehicle with combined micro-optical structure - Google Patents
Light guide, vehicle lamp and vehicle with combined micro-optical structure Download PDFInfo
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- CN215892231U CN215892231U CN202121463616.4U CN202121463616U CN215892231U CN 215892231 U CN215892231 U CN 215892231U CN 202121463616 U CN202121463616 U CN 202121463616U CN 215892231 U CN215892231 U CN 215892231U
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- Prior art keywords
- micro
- optical
- light guide
- supporting surface
- optic
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- 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
- G02B6/0033—Means for improving the coupling-out of light from the light guide
- G02B6/0058—Means for improving the coupling-out of light from the light guide varying in density, size, shape or depth along the light guide
- G02B6/0061—Means for improving the coupling-out of light from the light guide varying in density, size, shape or depth along the light guide to provide homogeneous light output intensity
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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
- F21S43/20—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
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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
- F21S43/20—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
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- 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
- G02B6/0016—Grooves, prisms, gratings, scattering particles or rough surfaces
-
- 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
- G02B6/0033—Means for improving the coupling-out of light from the light guide
- G02B6/0035—Means for improving the coupling-out of light from the light guide provided on the surface of the light guide or in the bulk of it
- G02B6/0036—2-D arrangement of prisms, protrusions, indentations or roughened surfaces
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Planar Illumination Modules (AREA)
Abstract
The utility model relates to a light guide with a combined micro-optical structure (100), comprising a plurality of micro-optical monomers (101), wherein the plurality of micro-optical monomers (101) are distributed on a supporting surface formed by a light outlet surface or a light inlet surface of the light guide, and the utility model is characterized in that the projections of at least two micro-optical monomers (101) in the plurality of micro-optical monomers (101) on the supporting surface are intersected.
Description
Technical Field
Embodiments of the present invention relate to the field of lighting and/or signaling, and more particularly, to a light guide, a vehicle lamp, and a vehicle having a combined micro-optical mechanism.
Background
The use of light guides is becoming more and more common in the field of motor vehicle lighting and signal transmission. In the field of lighting, the term "light guide" is used to denote a transparent or translucent component inside which a light beam propagates in a controlled manner from one end, called the input face, to at least one output face. In general, controlled light propagation is achieved by continuous total reflection from different reflective surfaces inside the light guide.
The advantage of using a light guide is that the desired illumination surface can be formed by using a varying variety of geometries and surfaces of the light guide, even in areas where it is not suitable for mounting light sources. In practice, designers of motor vehicles wish to provide visually pleasing lighting and/or signaling devices that have a uniform lighting appearance regardless of where and at what angle the observer looks. The use of a light guide is particularly advantageous when forming a unique luminous marking on the body, for example the side of the body, of a motor vehicle.
The prior art discloses light guides in the form of flat plates with an integral distribution pattern (recesses or protrusions) on one surface, but such light guides are only suitable for backlights in the form of flat plates, and are not suitable for curved light guides for motor vehicle lighting and/or signaling devices, and also proposes lighting devices for motor vehicles, in which the light guide can provide uniform and anisotropic lighting, but the lighting of such light guides still has drawbacks in terms of continuity and concentration of the light pattern, and in practice there is a need for lighting that has, for example, linear uniformity and continuity and is capable of presenting a sharp pattern.
SUMMERY OF THE UTILITY MODEL
Accordingly, it is an object of the present invention to overcome at least one of the problems and disadvantages of the prior art.
One aspect of the present invention provides a light guide with a combined micro-optical structure, comprising a plurality of micro-optical monomers, which are distributed on a supporting surface formed by a light exit surface or a light entrance surface of the light guide, wherein projections of at least two micro-optical monomers of the plurality of micro-optical monomers on the supporting surface intersect. The technical effect that such a structure can achieve is to provide illumination with better uniformity and continuity.
In one embodiment, at least two micro-optical monomers whose projections on the supporting surface intersect form a micro-optical monomer set, the micro-optical structure comprises a plurality of micro-optical monomer sets, wherein the projections of the micro-optical monomer sets on the supporting surface do not intersect. Such a structure can achieve the technical effect that a discontinuous pattern can be formed with illumination having good uniformity and continuity.
In one embodiment, the projection of the micro-optical monomer group on the supporting surface is in the shape of a circle, an ellipse or a polygon. Such a structure enables a pattern of subareas or segments of the illumination formation with good uniformity and continuity.
In one embodiment, the micro-optical monomers in the micro-optical monomer group are uniformly distributed in a string shape. Such a structure enables a line-shaped pattern of illumination formation with good uniformity and continuity.
In one embodiment, the sets of micro-optical monomers are distributed parallel to each other. Such a structure enables parallel patterns of illumination with good uniformity and continuity.
In one embodiment, the micro-optical monomers in the micro-optical monomer group are adjacently distributed on the support surface. Such a structure enables a preferred set of micro-optical monomers.
In one embodiment, the projection of each micro-optical monomer group on the supporting surface is in the shape of a circle, an ellipse or a polygon, wherein the micro-optical monomers in each micro-optical monomer group are continuously and uniformly distributed. Such a structure enables another preferred set of micro-optical monomers.
In one embodiment, the micro-optical monomer sets are distributed in an array on the support surface. Such a structure enables illumination with good uniformity and continuity to form an array-shaped distributed patch-type pattern.
In one embodiment, a projection of each micro-optic monomer on the supporting surface intersects a projection of an adjacent micro-optic monomer on the supporting surface. Such a structure enables an overall one-sheet pattern to be formed by illumination with good uniformity and continuity.
In one embodiment, the ratio of the overlapping area of the projection of a micro-optical monomer in the micro-optical monomer group on the supporting surface and the projection of an adjacent micro-optical monomer on the supporting surface to the area of the projection of the micro-optical monomer in the micro-optical monomer group on the supporting surface is between 5% and 50%. Practice has shown that such an overlapping area results in an optimal lighting effect.
In one embodiment, the micro-optic cells are protrusions or depressions on the support surface. Such a structure facilitates the molding mass production of such light guides.
In one embodiment, the micro-optic monomer is integrally formed on the light guide. Such a structure facilitates the molding mass production of such light guides.
Another aspect of the utility model provides a vehicle lamp comprising the above light guide.
Another aspect of the utility model provides a vehicle including the above lamp.
The light guide with combined micro-optical structures proposed in the above embodiments of the present invention can provide illumination with better uniformity and continuity and can present sharp patterns compared to the prior art.
Other objects and advantages of the present invention will become apparent from the following detailed description of the utility model, which proceeds with reference to the accompanying drawings, and may assist in a comprehensive understanding of the utility model.
Drawings
These and/or other aspects, features and advantages of the present invention will become apparent and readily appreciated from the following description of the illustrative embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a partial schematic view showing a light guide with discrete micro-optical structures according to the prior art;
FIG. 2 is a partial schematic view showing a light guide with a combined micro-optical structure according to an exemplary embodiment of the present invention;
FIG. 3 is a diagram showing two arrangements of micro-optical monomers in a set of micro-optical monomers of a combined micro-optical structure according to an exemplary embodiment of the present invention;
FIG. 4 is a diagram showing the shape and arrangement of micro-optical monomer sets of a combined micro-optical structure according to an exemplary embodiment of the present invention;
FIG. 5(a) is a partial illumination pattern showing a light guide with discrete micro-optical structures according to the prior art;
FIG. 5(b) is a partial illumination pattern showing a light guide with combined micro-optical structures according to an exemplary embodiment of the present invention;
FIG. 6(a) is a graph showing the light intensity of a light guide with discrete micro-optical structures according to the prior art; and
fig. 6(b) is a light intensity graph showing a light guide having a combined micro-optical structure according to an exemplary embodiment of the present invention.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. In the present description, functionally identical or similar parts are denoted by the same reference numerals. The following description of the exemplary embodiments of the present invention, which refers to the accompanying drawings, is intended to illustrate the inventive concepts of the present disclosure and should not be taken as a limitation of the utility model.
Furthermore, in the following detailed description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of the embodiments of the utility model. It may be evident, however, that one or more embodiments may be practiced without these specific details. In other instances, well-known structures and devices are shown in schematic form in order to simplify the drawing.
According to the general inventive concept, there is provided a light guide with a combined micro-optical structure comprising a plurality of micro-optical monomers distributed on a supporting surface formed by a light exit surface or a light entrance surface of the light guide, characterized in that projections of at least two micro-optical monomers of the plurality of micro-optical monomers on the supporting surface intersect.
FIG. 1 is a partial schematic view showing a light guide with discrete micro-optical structures according to the prior art; as shown in the figure, a plurality of micro-optical units 101 are uniformly distributed on the supporting surface of the light guide in the prior art, the plurality of micro-optical units 101 are distributed in an array, and a space is formed between adjacent micro-optical units 101. The technical effect that such a structure can achieve is to provide illumination with better uniformity and continuity.
In the art, a micro-optical monomer of a micro-optical structure generally means a single periodic microstructure when the micro-optical structure is a periodically distributed structure.
Fig. 2 is a partial schematic view showing a light guide with a combined micro-optical structure according to an exemplary embodiment of the present invention.
As shown in the figure, the light guide with the combined micro-optical structure 100 of the present invention includes a plurality of micro-optical units 101, the plurality of micro-optical units 101 are distributed on a supporting surface, generally, the supporting surface is formed by a light exit surface or a light entrance surface of the light guide, and some of the plurality of micro-optical units 101 are connected together, wherein at least two micro-optical units 101 of the plurality of micro-optical units 101, in fig. 2, are a plurality of micro-optical units 101 distributed in series, and projections on the supporting surface intersect. As shown, adjacent micro-optical cells 101 are positioned closely together to form a plurality of continuous lines that are spaced apart from each other, and in particular, parallel in fig. 2.
FIG. 3 shows two arrangements of micro-optical cells 101 in a micro-optical cell group 110 of a combined micro-optical structure 100 according to an exemplary embodiment of the present invention; FIG. 4 is a diagram illustrating the shape and arrangement of a micro-optical cell set 110 of a combined micro-optical structure according to an exemplary embodiment of the utility model;
as shown in fig. 2-4, the micro-optical cells 101 whose projections on the supporting surface intersect form a micro-optical cell group 110, and a plurality of micro-optical cell groups 110 may be included on the supporting surface of the light guide, but the projections of the micro-optical cell groups 110 on the supporting surface do not intersect. In other words, each micro-optical monomer group 110 may have a certain distance therebetween. Such a structure can achieve the technical effect that a discontinuous pattern can be formed with illumination having good uniformity and continuity.
As shown in fig. 4, the projection of the micro-optical cell group 110 on the supporting surface has a shape of a circle, an ellipse, or a polygon. Such a structure enables a pattern of subareas or segments of the illumination formation with good uniformity and continuity.
As shown in fig. 2 and 3, the micro optical cells 101 in the micro optical cell group 110 are uniformly distributed in a string shape. Such a structure enables a line-shaped pattern of illumination formation with good uniformity and continuity.
As shown in fig. 2, the micro-optical monomer units 110 are arranged in parallel with each other. Thereby forming a continuous solid line of luminescence. Such a structure enables parallel patterns of illumination with good uniformity and continuity.
As shown in the upper diagram of fig. 2, the micro optical units 101 in the micro optical unit group 110 are adjacently distributed on the supporting surface. In other words, in the upper diagram, only one intersection point exists in the projection of the adjacent micro-optical units 101 on the supporting surface. Such a structure enables a preferred set of micro-optical monomers.
As shown in fig. 4, the projection of each micro-optical cell group 110 on the supporting surface has a shape of a circle, an ellipse or a polygon, wherein the micro-optical cells 101 in each micro-optical cell group 110 are continuously and uniformly distributed. As shown, the mesh pattern inside each circle, ellipse, or polygon represents a plurality of micro optical monomers 101 arranged uniformly and continuously. Such a structure enables another preferred set of micro-optical monomers.
As shown in fig. 4, the micro-optical cell groups 110 are distributed in an array on the supporting surface. Such a structure enables illumination with good uniformity and continuity to form an array-shaped distributed patch-type pattern.
Of course, there may be points of intersection between the micro-optic cell groups 110, as shown in the bottom row in fig. 4. Generally, this intersection is limited to only one intersection point.
In one embodiment, it is conceivable that the projections of all micro-optical monomers 101 on the supporting surface of the light guide intersect the projections of the adjacent micro-optical monomers 101 on the supporting surface. In this way, the optical cells are distributed continuously over the entire supporting surface of the light guide, forming a continuous whole. Such a structure enables an overall one-sheet pattern to be formed by illumination with good uniformity and continuity.
In one embodiment, as shown in the lower diagram of fig. 3, the projection of the micro-optical unit 101 in the micro-optical unit group 110 on the supporting surface has an overlapping area with the projection of the adjacent micro-optical unit 101 on the supporting surface, and the proportion of the overlapping area to the area of the projection of the micro-optical unit 101 in the micro-optical unit group 110 on the supporting surface is optimally 5% -50%.
Fig. 5(a) is a partial illumination pattern showing a light guide having discrete micro-optical structures according to the related art, and fig. 5(b) is a partial illumination pattern showing a light guide having combined micro-optical structures according to an exemplary embodiment of the present invention.
It is clear from the figure that the partial irradiation pattern of the prior art light guide is a light band formed by discontinuous spots, and the pattern thus formed is not clear, compared to the irradiation pattern of the light guide of the present invention which is a continuous uniform light band, with obvious advantages in terms of linear uniformity and continuity.
Fig. 6(a) is a light intensity graph showing a light guide having discrete micro-optical structures according to the related art, and fig. 6(b) is a light intensity graph showing a light guide having combined micro-optical structures according to an exemplary embodiment of the present invention.
It is clear from the figure that the light intensity curve of the light guide of the prior art requires an input of 85.51m, compared with the light intensity curve of the light guide of the present invention which requires an input of only 49.31m, the generated light pattern is more concentrated, and the light distribution regulations can be better satisfied.
In some exemplary embodiments, the micro optical unit 101 is a protrusion or a recess on the supporting surface. Such a structure facilitates the molding mass production of such light guides.
In some exemplary embodiments, the micro-optic cell 101 is integrally formed on the light guide. Such a structure facilitates the molding mass production of such light guides.
The light guide with combined micro-optical structures proposed in the above embodiments of the present invention can provide illumination with better uniformity and continuity and can present sharp patterns compared to the prior art.
Another aspect of the utility model provides a vehicle lamp comprising the above light guide.
Another aspect of the utility model provides a vehicle including the above lamp.
Although the present invention has been described in connection with the accompanying drawings, the embodiments disclosed in the drawings are intended to be illustrative of preferred embodiments of the present invention and should not be construed as limiting the utility model. The dimensional proportions in the figures are merely schematic and are not to be understood as limiting the utility model.
Although a few embodiments of the present general inventive concept have been shown and described, it would be appreciated by those skilled in the art that changes may be made in these embodiments without departing from the principles and spirit of the general inventive concept, the scope of which is defined in the claims and their equivalents.
Claims (14)
1. A light guide with a combined micro-optical structure (100), comprising a plurality of micro-optical cells (101), said plurality of micro-optical cells (101) being distributed on a supporting surface formed by a light exit surface or a light entrance surface of the light guide, characterized in that projections of at least two micro-optical cells (101) of said plurality of micro-optical cells (101) onto said supporting surface intersect.
2. The light guide according to claim 1, wherein at least two micro-optic cells (101) whose projections on the supporting surface intersect form a micro-optic cell group (110), the micro-optic structure (100) comprising a plurality of micro-optic cell groups (110), wherein the projections of the respective micro-optic cell groups (110) of the plurality of micro-optic cell groups (110) on the supporting surface do not intersect.
3. The light guide according to claim 2, characterized in that the shape of the projection of the set of micro-optical cells (110) on the support surface is circular, elliptical or polygonal.
4. The light guide according to claim 2, wherein the micro-optical cells (101) in the set (110) of micro-optical cells are uniformly distributed in a string.
5. The light guide according to claim 4, characterized in that the groups (110) of micro-optical cells are distributed parallel to each other.
6. A light guide according to claim 4, characterized in that the micro-optical cells (101) in the set (110) of micro-optical cells are distributed adjacently on the support surface.
7. The light guide according to claim 2, wherein the projection of each micro-optical cell group (110) on the supporting surface has a shape of a circle, an ellipse or a polygon, wherein the micro-optical cells (101) within each micro-optical cell group (110) are continuously and uniformly distributed.
8. The light guide according to claim 7, wherein the groups of micro-optic cells (110) are distributed in an array on the support surface.
9. A light guide according to claim 1, characterized in that the projection of each micro-optic cell (101) on the supporting surface intersects the projection of the adjacent micro-optic cell (101) on the supporting surface.
10. The light guide according to any of claims 2-4 or 7, wherein the ratio of the overlapping area of the projection of a micro-optic cell (101) in the set of micro-optic cells (110) on the supporting surface to the projection of an adjacent micro-optic cell (101) on the supporting surface to the area of the projection of a micro-optic cell (101) in the set of micro-optic cells (110) on the supporting surface is between 5% and 50%.
11. The light guide according to claim 1, characterized in that the micro-optical cells (101) are protrusions or recesses on the support surface.
12. The light guide according to claim 1, characterized in that the micro-optical cell (101) is integrally formed on the light guide.
13. A vehicle lamp comprising a light guide according to any one of claims 1-12.
14. A vehicle comprising the lamp according to claim 13.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121463616.4U CN215892231U (en) | 2021-06-29 | 2021-06-29 | Light guide, vehicle lamp and vehicle with combined micro-optical structure |
| PCT/EP2022/067812 WO2023275102A1 (en) | 2021-06-29 | 2022-06-28 | Light guide with combined micro-optical structure, vehicle lamp nad vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121463616.4U CN215892231U (en) | 2021-06-29 | 2021-06-29 | Light guide, vehicle lamp and vehicle with combined micro-optical structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215892231U true CN215892231U (en) | 2022-02-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121463616.4U Active CN215892231U (en) | 2021-06-29 | 2021-06-29 | Light guide, vehicle lamp and vehicle with combined micro-optical structure |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN215892231U (en) |
| WO (1) | WO2023275102A1 (en) |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5725349B2 (en) * | 2011-07-25 | 2015-05-27 | ミネベア株式会社 | Surface lighting device |
| JP2013056603A (en) * | 2011-09-08 | 2013-03-28 | Yamaha Motor Co Ltd | Saddle-riding type vehicle and light guide used in the same |
| KR102244427B1 (en) * | 2014-06-02 | 2021-04-27 | 엘지이노텍 주식회사 | Lighting device |
| US11204458B2 (en) * | 2018-11-12 | 2021-12-21 | S.V.V. Technology Innovations, Inc. | Wide-area solid-state illumination devices and systems employing sheet-form light guides and method of making the same |
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2021
- 2021-06-29 CN CN202121463616.4U patent/CN215892231U/en active Active
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- 2022-06-28 WO PCT/EP2022/067812 patent/WO2023275102A1/en active Application Filing
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| Publication number | Publication date |
|---|---|
| WO2023275102A1 (en) | 2023-01-05 |
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