CN114923154A - Optical assembly and vehicle - Google Patents
Optical assembly and vehicle Download PDFInfo
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- CN114923154A CN114923154A CN202210580290.6A CN202210580290A CN114923154A CN 114923154 A CN114923154 A CN 114923154A CN 202210580290 A CN202210580290 A CN 202210580290A CN 114923154 A CN114923154 A CN 114923154A
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V7/00—Reflectors for light sources
- F21V7/22—Reflectors for light sources characterised by materials, surface treatments or coatings, e.g. dichroic reflectors
- F21V7/28—Reflectors for light sources characterised by materials, surface treatments or coatings, e.g. dichroic reflectors characterised by coatings
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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
- G02B6/005—Means for improving the coupling-out of light from the light guide provided by one optical element, or plurality thereof, placed on the light output side of the light guide
- G02B6/0051—Diffusing sheet or layer
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V2200/00—Use of light guides, e.g. fibre optic devices, in lighting devices or systems
- F21V2200/20—Use of light guides, e.g. fibre optic devices, in lighting devices or systems of light guides of a generally planar shape
-
- 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]
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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)
- Illuminated Signs And Luminous Advertising (AREA)
Abstract
The invention relates to the technical field of vehicle parts, in particular to an optical assembly and a vehicle. The structure of the optical component comprises a light source, an optical waveguide layer and a scattering layer; at least one side surface of the optical waveguide layer is used for the light source to emit, and the scattering layer is arranged on the top surface or the bottom surface of the optical waveguide layer; the scattering layer is a continuous or discontinuous light-transmitting ink coating, and the light-transmitting ink coating comprises organic particles with light reflecting properties. The light assembly has better light diffuse reflection effect and proper visible light transmittance.
Description
Technical Field
The invention relates to the technical field of vehicle parts, in particular to an optical assembly and a vehicle.
Background
Light assemblies are an important vehicle component. Light assemblies in vehicles typically include a light source and an optical waveguide layer within which light from the light source is received from one side of the optical waveguide layer and can be used for illumination, creating an atmosphere, and providing an entertainment environment.
At present, a scattering layer is additionally arranged in some light assemblies to enhance the optical diffuse reflection. In the related research, how to further design the scattering layer to achieve better light diffusion reflection effect is an important research direction.
Disclosure of Invention
Based on this, the invention provides a light assembly and a vehicle comprising the light assembly. The light assembly has a better light diffuse reflection effect.
A first aspect of the invention provides a light assembly. The technical scheme is as follows:
an optical module having a structure including a light source, an optical waveguide layer, and a scattering layer;
at least one side surface of the optical waveguide layer is used for the light source to emit, and the scattering layer is arranged on the top surface or the bottom surface of the optical waveguide layer;
the scattering layer is a continuous or discontinuous light-transmitting ink coating, and the light-transmitting ink coating comprises organic particles with light reflecting properties.
In some of these embodiments, the thickness of the light-transmissive ink coating is controlled such that the light-transmissive ink coating has a transmittance TL for visible light in the wavelength range of 380nm to 780nm, and TL is 83% to 89%.
In some of these embodiments, the light-transmissive ink coating has a thickness of 5 μm to 15 μm, and the light-transmissive ink coating has a transmittance TL for visible light in a wavelength range of 380nm to 780nm that satisfies: TL is more than or equal to 84.7 percent and less than or equal to 88 percent.
In some of these embodiments, the thickness of the light transmissive ink coating is the same.
In some embodiments, a preset direction parallel to the scattering layer is set inside the optical waveguide layer, and the thickness of the light-transmitting ink coating layer gradually increases along the preset direction.
In some embodiments, the predetermined direction is a direction in which a side surface into which the light source is incident is directed toward an opposite side surface.
In some of these embodiments, the optical waveguide layer is provided with a predetermined area, and the thickness of the light-transmissive ink coating in the predetermined area is greater than the thickness of the light-transmissive ink coating outside the predetermined area.
In some of these embodiments, the light transmissive ink coating is formed by printing a light transmissive ink including the organic particles having light reflective properties and then curing the printed ink.
In some embodiments, the curing temperature is 120-180 ℃, and the curing time is 15-30 min.
In some embodiments, the optical waveguide layer has a transmittance TL of 86% or more for visible light in a wavelength range of 380nm to 780 nm.
In some of these embodiments, the optical waveguide layer has a thickness in the range of 1.0mm to 3.0mm, preferably 1.6mm to 2.1 mm.
In some of these embodiments, the light source is an LED diode.
In some of the embodiments, the structure further comprises an ultraviolet insulation functional layer and/or an infrared insulation functional layer;
the ultraviolet isolating functional layer is positioned on one side of the optical waveguide layer far away from the scattering layer or one side of the scattering layer far away from the optical waveguide layer; the infrared isolating functional layer is positioned on one side of the optical waveguide layer far away from the scattering layer or one side of the scattering layer far away from the optical waveguide layer.
In some of these embodiments, the structure further comprises at least one substrate and at least one bonding layer;
a said bonding layer bonding said substrate to said optical waveguide layer; and/or
One of the adhesive layers adheres one of the substrates and the scattering layer.
The second part of the invention provides a vehicle, which comprises a vehicle body and the light assembly.
Compared with the traditional scheme, the invention has the following beneficial effects:
the invention provides a scattering layer on the light waveguide layer, wherein the scattering layer is a continuous or discontinuous light-transmitting ink coating, and the light-transmitting ink coating comprises organic particles with light reflecting properties. Compared with other scattering layer materials, the light-transmitting ink coating has an excellent optical diffuse reflection effect, can be flexibly arranged, can be a whole continuous coating, and can also be a plurality of coatings distributed at intervals. Compared with the method for adding inorganic particles into the light-transmitting ink coating, the method for adding organic particles into the light-transmitting ink coating has the advantages that the organic particles with the light reflection property are added into the light-transmitting ink coating, the organic particles can be attached to the contact surface of the light-transmitting ink coating and the optical waveguide layer, the optical diffuse reflection effect is enhanced, the visible light transmittance of the light-transmitting ink coating is considered, the brightness of the scattering layer is increased, and the requirement on the power of a light source is low.
The invention also discovers that: the transmittance of the light-transmitting ink coating to visible light can be adjusted by controlling the thickness of the light-transmitting ink coating, so that different light-emitting effects can be realized. Wherein, suitable visible light transmissivity both can realize under the light source condition of closing, and the pattern effect of printing ink coating can be better hidden in the printing ink coating of can also in time examining in the preparation process, need not to the special detection frock of process design and detect again to promote production efficiency and reduction in production cost.
Based on the findings, the invention can design different distribution modes and thicknesses of the light-transmitting ink coating according to different use requirements, and further design optical components with different functions.
Drawings
FIG. 1 is a schematic front view of an optical assembly according to an embodiment;
FIG. 2 is a schematic top view of an embodiment of a light assembly;
fig. 3 is a front view of an optical assembly according to an embodiment.
Detailed Description
The present invention will be described in further detail with reference to specific examples. The present invention may be embodied in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.
Term(s) for
Unless otherwise stated or contradicted, terms or phrases used herein have the following meanings:
in the present invention, the technical features described in the open type include a closed technical solution composed of the listed features, and also include an open technical solution including the listed features.
In the present invention, the directions or positional relationships indicated by "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., are based on the directions or positional relationships shown in the drawings, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a particular direction, be constructed and operated in a particular direction, and thus, should not be construed as limiting the present invention.
In the present invention, "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "above," and "over" a second feature may be directly on or obliquely above the second feature, or simply mean that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In the present invention, unless otherwise explicitly stated or limited, the terms "mounted," "connected," "fixed," and the like are to be construed broadly, e.g., as being permanently connected, detachably connected, or integral; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, when an element is referred to as being "fixed" or "disposed" to another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.
It should also be understood that in explaining the connection relationship or the positional relationship of the elements, although not explicitly described, the connection relationship and the positional relationship are interpreted to include an error range which should be within an acceptable deviation range of a specific value determined by those skilled in the art. For example, "about," "approximately," or "substantially" may mean within one or more standard deviations, without limitation.
The scope of the invention, as used herein, is intended to include any and all combinations of two or more of the associated listed items, including any and all combinations of any two or more of the associated listed items, any and all combinations of any and all of the associated listed items, or any and all combinations of all of the associated listed items. It should be noted that when at least three items are connected by at least two conjunctions selected from "and/or", "or" and/or ", it should be understood that this solution certainly includes solutions all connected by" logical and ", and also certainly includes solutions all connected by" logical or ". For example, "A and/or B" includes A, B and A + B. For example, embodiments of "a, and/or, B, and/or, C, and/or, D" include A, B, C, D (i.e., embodiments all connected by "logical or"), A, B, C, D includes any and all combinations of any two or any three of A, B, C, D, and A, B, C, D includes four combinations of A, B, C, D (i.e., embodiments all connected by "logical and").
In the present invention, references to "optionally", "optional", refer to the presence or absence, i.e., to any one of the two juxtapositions "present" or "absent". If multiple optional parts appear in one technical scheme, if no special description exists, and no contradiction or mutual constraint relation exists, each optional part is independent.
In the present invention, references to "further", "still", "specifically", etc. are used for descriptive purposes and to indicate differences in content, but should not be construed as limiting the scope of the present invention.
In the present invention, the temperature parameter is not particularly limited, and may be a constant temperature treatment or a variation within a certain temperature range. It will be appreciated that the described thermostatic process allows the temperature to fluctuate within the accuracy of the instrument control. Allowing fluctuations in the range of, for example,. + -. 5 deg.C,. + -. 4 deg.C,. + -. 3 deg.C,. + -. 2 deg.C, + -. 1 deg.C.
In the present invention, the term "transparent" refers to, unless otherwise specified, either completely transparent, e.g., having a visible light transmittance of 80% or more or 90% or translucent, e.g., having a visible light transmittance of about 50%.
In the present invention, the term "thickness" refers to physical thickness.
One embodiment of the present invention provides an optical module 01, as shown in fig. 1, the structure of the optical module 01 includes a light source 10, an optical waveguide layer 20, and a scattering layer 30;
one side surface of the optical waveguide layer is used for the light source 10 to enter, and the scattering layer 30 is arranged on the top surface of the optical waveguide layer 20;
the scattering layer 30 is a continuous or discontinuous light transmissive ink coating including organic particles having light reflecting properties.
It will be appreciated that in addition to the scattering layer being provided over the top surface of the optical waveguide layer, a scattering layer may also be provided over the bottom surface of the optical waveguide layer. Fig. 2 is a top view of the light assembly of this embodiment, in which a light source 10 is disposed beside an optical waveguide layer 20, and light emitted from the light source 10 is received by at least one side of the optical waveguide layer 20.
In this embodiment, light source 10 is formed by a plurality of LED diodes, and light from light source 10 continues to propagate in optical waveguide layer 20 after light from light source 10 is received by at least one side of optical waveguide layer 20.
Alternatively, the optical waveguide layer may be organic or inorganic glass, and may be highly transparent glass or ordinary transparent glass, preferably, the optical waveguide layer is highly transparent glass, and in some embodiments, the optical waveguide layer has a transmittance TL of not less than 86% for visible light in a wavelength range of 380nm to 780nm, and is ordinary transparent glass, and in some preferred embodiments, the optical waveguide layer has a transmittance TL of not less than 91% for visible light in a wavelength range of 380nm to 780nm, and is highly transparent glass.
Optionally, the optical waveguide layer has a thickness of 1mm to 3 mm. Including but not limited to 1mm, 1.2mm, 1.5mm, 1.6mm, 1.7mm, 1.8mm, 1.9mm, 2.0mm, 2.1mm, 2.5mm, 2.8mm, 3 mm. Preferably, the thickness of the optical waveguide layer is 1.6mm to 2.1 mm.
Alternatively, the optical waveguide layer may be planar or curved. The curved optical waveguide layer may be prepared by bending a planar optical waveguide layer.
In this embodiment, a scattering layer 30 is disposed over the top surface of optical waveguide layer 20 for scattering light emitted from light source 10.
Wherein the scattering layer 30 is a continuous or discontinuous light transmissive ink coating comprising organic particles having light reflecting properties.
The invention provides a scattering layer on the light waveguide layer, wherein the scattering layer is a continuous or discontinuous light-transmitting ink coating, and the light-transmitting ink coating comprises organic particles with light reflecting properties. Compared with other scattering layer materials, the light-transmitting ink coating has an excellent optical diffuse reflection effect, can be flexibly arranged, can be a whole continuous coating, and can also be a plurality of coatings distributed at intervals. Compared with the method for adding inorganic particles into the light-transmitting ink coating, the method for adding organic particles into the light-transmitting ink coating has the advantages that the organic particles with the light reflection property are added into the light-transmitting ink coating, the organic particles can be attached to the contact surface of the light-transmitting ink coating and the optical waveguide layer, the optical diffuse reflection effect is enhanced, the visible light transmittance of the light-transmitting ink coating is considered, the brightness of the scattering layer is increased, and the requirement on the power of a light source is low. For example, if inorganic particles are added into the light-transmitting ink coating, if the inorganic particles are smaller than 100nm, the processing difficulty is increased, and meanwhile, the visible light transmittance is increased, the brightness of the scattering layer is affected, and only a light source with higher brightness can be used for realizing ideal brightness, so that higher requirements are put forward on the power of the light source and the size of a lamp bead. The organic particles added in the invention not only give consideration to the visible light transmittance of the light-transmitting ink coating, but also are beneficial to increasing the brightness of the scattering layer, and have low power requirement on a light source.
Optionally, the organic particles have a particle size of less than 5 μm.
Alternatively, the light-transmissive ink coating may be formed by printing a light-transmissive ink and then curing, wherein the light-transmissive ink includes the organic particles having the light-reflecting property therein.
In some embodiments, the method of printing the clear ink may be screen printing or inkjet printing. The process flow is simple.
In some embodiments, the curing temperature is 120 ℃ to 180 ℃ and the curing time is 15min to 30 min. During curing, the organic solvent in the light-transmitting ink gradually volatilizes, the organic particles gradually adhere to the contact surface of the light-transmitting ink coating and the optical waveguide layer, and the curing temperature is low. This step can be performed after the optical waveguide layer is bent to avoid the influence of the high temperature of the forming on the light-transmitting ink coating.
The invention also finds that the transmittance of the light-transmitting ink coating to visible light can be adjusted by controlling the thickness of the light-transmitting ink coating, so that different light-emitting effects can be realized. Wherein, suitable visible light transmissivity both can realize under the light source condition of closing, and the pattern effect of printing ink coating can be better hidden in the printing ink coating of can also in time examining in the preparation process, need not to the special detection frock of process design and detect again to promote production efficiency and reduction in production cost.
Specifically, the inventor finds through experiments that: the thickness delta of the light-transmitting ink coating layer of the invention has the following relation with the transmittance TL of the light-transmitting ink coating layer to visible light in the wavelength range of 380nm to 780 nm:
when δ is 5 μm, TL is 88%; when δ is 7 μm, TL is 87%; when δ is 9 μm, TL is 86.5%; when δ is 12 μm, TL is 85.6%; when δ is 15 μm, TL is 84.7%.
When the thickness of the light-transmitting ink coating is smaller, the transmittance TL of the light-transmitting ink coating to visible light in the wavelength range of 380 nm-780 nm is larger, namely the transparency effect is better, and the optical diffuse reflection effect of the corresponding light-transmitting ink coating is weaker; on the contrary, when the thickness of the light-transmitting ink coating is larger, the transmittance TL of the light-transmitting ink coating for visible light in the wavelength range of 380nm to 780nm is smaller, and the corresponding light-transmitting ink coating has a stronger optical diffuse reflection effect, but the lamination difficulty in the subsequent interlayer is increased and the usage amount of the light-transmitting ink is increased. The brightness and the optical diffuse reflection effect of the scattering layer when the light source is turned on are combined, the hiding effect and the inspection effect when the light source is turned off are combined, and the actual production process is combined. In the present invention, the thickness δ of the light-transmitting ink coating layer is preferably between 3 μm and 20 μm, in which case the transmittance TL of the light-transmitting ink coating layer for visible light in the wavelength range of 380nm to 780nm satisfies: TL is more than or equal to 83 percent and less than or equal to 89 percent. It is further preferred that the thickness δ of the light-transmitting ink coating is between 5 μm and 15 μm, when the transmittance TL of the light-transmitting ink coating for visible light in the wavelength range of 380nm to 780nm satisfies: TL is more than or equal to 84.7 percent and less than or equal to 88 percent. It is further preferred that the thickness delta of the light-transmissive ink coating is between 7 μm and 12 μm, in which case the light-transmissive ink coating has a transmittance TL for visible light in the wavelength range of 380nm to 780nm which is between 85.6% TL and 87%.
The above findings can be utilized to achieve different light emission effects by setting the thickness of the light-transmissive ink coating on the light guide layer.
In this embodiment, as shown in fig. 1 and fig. 2, the scattering layer is a plurality of discontinuous light-transmissive ink coatings with different thicknesses, wherein the side surface for the light source to irradiate 10 is directed to the opposite side surface, and the thickness of the light-transmissive ink coating gradually increases. Because the brightness of the light emitted by the light source 10 gradually weakens in the process of propagating the optical waveguide layer 20, after the light-transmitting ink coating with gradually increased thickness is arranged, the diffuse reflection function of the coating can be correspondingly enhanced, and the reflection brightness is increased, so that under the condition that the brightness of the light source gradually weakens, the uniformity of the reflection brightness of the whole area is realized through the thickness supplement of the light-transmitting ink, and the light-transmitting ink can be used for illumination.
In other embodiments, a continuous or discontinuous light-transmitting ink coating with gradually increasing or decreasing thickness can be further arranged in the direction in which the side surface for the light source to enter points to the side surface opposite to the side surface, so that the light-emitting effect with gradually changing reflection brightness is realized.
It is understood that the number of the light sources may be one or two, and the two light sources may be respectively disposed at two sides of the optical waveguide layer, and in this case, the direction along which the side surface from which the light source enters is directed to the side surface opposite to the side surface is cut off at the intersection of the two directions for each specific light source. It will also be appreciated that the number of light sources may also be greater.
In other embodiments, in addition to the direction from the side for the light source to enter to the side opposite to the side, a continuous or discontinuous light-transmitting ink coating with gradually increasing or decreasing thickness may be provided in other predetermined directions inside the optical waveguide layer parallel to the scattering layer, for example, the direction parallel to the light source, so as to achieve the light extraction effect with gradually changing reflection brightness.
In other embodiments, the optical waveguide layer may be further provided with a preset region, and the light-transmitting ink coatings with different thicknesses are arranged in the preset region and outside the preset region, so as to achieve a light extraction effect of the preset region, which is visually deeper or shallower. For example, the thickness of the light-transmitting ink coating in the preset area is larger than that of the light-transmitting ink coating outside the preset area, so that the reflection brightness of the preset area is larger, the vision is lighter, and the appearance is more attractive.
In other embodiments, the thickness of the light transmissive ink coating on the optical waveguide layer is the same.
It is understood that if the light transmissive ink coating is formed by printing the light transmissive ink by the screen printing method, the thickness of the light transmissive ink coating can be controlled by adjusting the screen printing blanket and the printing pressure, etc. If the light-transmitting ink is printed by the ink-jet printing method to form the light-transmitting ink coating layer, the thickness of the light-transmitting ink coating layer can be controlled by adjusting the percentage of the amount of ink jetted or the number of passes of printing, or the like.
By controlling the distribution and thickness of the light-transmitting ink coating, different light-emitting effects can be realized, such as illumination, beautiful appearance and gradual change.
Optionally, the structure of the optical assembly further comprises an ultraviolet-isolating functional layer and/or an infrared-isolating functional layer;
the ultraviolet isolating functional layer is positioned on one side of the optical waveguide layer far away from the scattering layer or one side of the scattering layer far away from the optical waveguide layer; the infrared isolating functional layer is positioned on one side of the optical waveguide layer far away from the scattering layer or one side of the scattering layer far away from the optical waveguide layer.
Optionally, the structure of the light assembly further comprises at least one substrate and at least one adhesive layer, used as an atmosphere lamp interlayer article;
wherein one of said bonding layers bonds one of said substrates to said optical waveguide layer; and/or one of the adhesive layers adheres one of the substrates and the scattering layer.
Alternatively, the material of the adhesive layer may be a thermoplastic or thermosetting type laminating material such as PVB, EVA, etc.
For example, in one embodiment, a schematic diagram of the structure of the optical assembly 02 is shown in fig. 3, and as shown in fig. 3, the structure of the optical assembly 02 includes a light source 10, an optical waveguide layer 20, a scattering layer 30, an adhesive layer 40, and a substrate 50;
wherein at least one side surface of the optical waveguide layer 20 is used for the light source 10 to inject, and the scattering layer 30 is arranged on the top surface or the bottom surface of the optical waveguide layer 20;
the adhesive layer 40 adheres the scattering layer 30 to the substrate 50.
The substrate 50 may be a safety multifunctional glass, such as a single piece of tempered glass, a double piece of laminated glass, a coated laminated glass, an optical functional glass layer, or the like.
The invention also provides a vehicle. Which comprises a vehicle body and the light assembly.
Example 1
The embodiment provides an optical assembly and a preparation method thereof. The method comprises the following steps:
1. taking 2.0mm high transparent glass with the transmittance of more than or equal to 91 percent as optical waveguide layer glass, and carrying out semi-tempered bending forming.
2. Printing light-transmitting ink on the optical waveguide layer glass, continuously printing, drying and curing by heating the air temperature of a cavity, wherein the thickness of a cured light-transmitting ink coating is delta 9 mu m, and the transmittance TL of visible light in the wavelength range of 380nm to 780nm is 86.5%.
4. The clear ink coating was bonded to a 2.1mm gray double-pane laminated glass through a 0.76mm eva film.
5. And installing the LED diodes capable of emitting light.
Example 2
The embodiment provides an optical assembly and a preparation method thereof. The method comprises the following steps:
1. taking 1.8mm high transparent glass with the transmittance of more than or equal to 91 percent as optical waveguide layer glass.
2. Printing light-transmitting ink on the optical waveguide layer glass, continuously printing, drying and curing by heating the air temperature of a cavity, and gradually increasing the thickness of the cured light-transmitting ink coating from delta 5 mu m to delta 10 mu m along the direction far away from a light source, wherein the transmittance TL of the light-transmitting ink coating to visible light in the wavelength range of 380 nm-780 nm is correspondingly reduced.
4. The clear ink coating was bonded to a 2.1mm gray double-pane laminated glass through a 0.76mm eva film.
5. And installing the LED capable of emitting light.
Example 3
The embodiment provides an optical assembly and a preparation method thereof. The method comprises the following steps:
1. the 2.1mm transparent glass with transmittance of more than 86% is used as optical waveguide layer glass, and is subjected to semi-tempered bending forming.
2. Printing the light-transmitting ink on the optical waveguide layer glass, printing discontinuously, drying and curing by heating the air temperature of a cavity, wherein after curing, the thickness of the light-transmitting ink coating is respectively delta 9 mu m, delta 10 mu m and delta 12 mu m along the direction far away from a light source, and the transmittance TL of the light-transmitting ink coating to visible light in the wavelength range of 380 nm-780 nm is respectively 86.5 percent, 86 percent and 85.6 percent.
4. The clear ink coating was bonded to a 2.1mm gray double-pane laminated glass through a 0.76mm eva film.
5. And installing the LED capable of emitting light.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that various changes and modifications can be made by those skilled in the art without departing from the spirit of the invention, and these changes and modifications are all within the scope of the invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (13)
1. An optical module characterized by a structure comprising a light source, an optical waveguide layer and a scattering layer;
at least one side surface of the optical waveguide layer is used for the light source to emit, and the scattering layer is arranged on the top surface or the bottom surface of the optical waveguide layer;
the scattering layer is a continuous or discontinuous light-transmissive ink coating including organic particles having light-reflecting properties.
2. The optical assembly of claim 1, wherein the thickness of the light-transmissive ink coating is controlled such that the light-transmissive ink coating has a transmittance TL for visible light in a wavelength range of 380nm to 780nm, and TL is 83% to 89%.
3. The optical assembly according to claim 2, wherein the thickness of the light-transmissive ink coating is 5-15 μm, and the transmittance TL of the light-transmissive ink coating for visible light in the wavelength range of 380-780 nm satisfies: TL is more than or equal to 84.7 percent and less than or equal to 88 percent.
4. The optical assembly of claim 3, wherein the optically transmissive ink coatings are of the same thickness.
5. The optical module according to claim 3, wherein the light guiding layer has a predetermined direction inside it parallel to the scattering layer, and the thickness of the light-transmissive ink coating gradually increases along the predetermined direction.
6. The light assembly of claim 5, wherein the predetermined direction is a direction in which a side surface through which the light source is incident is directed toward an opposite side surface.
7. A light assembly according to claim 3, wherein the light guiding layer is provided with a predefined area, the thickness of the light transmissive ink coating in the predefined area being larger than the thickness of the light transmissive ink coating outside the predefined area.
8. A light assembly according to any one of claims 1 to 7, wherein the light transmissive ink coating is formed by printing a light transmissive ink including the organic particles having light reflecting properties and then curing the printed ink.
9. The optical assembly of claim 8, wherein the curing temperature is 120 ℃ to 180 ℃ and the curing time is 15min to 30 min.
10. The optical assembly according to any one of claims 1 to 7, wherein the optical waveguide layer has a transmittance TL for visible light in a wavelength range of 380nm to 780nm of at least 86%; and/or
The thickness of the optical waveguide layer is 1.0 mm-3.0 mm; and/or
The light source is an LED diode.
11. The optical assembly according to any one of claims 1 to 7, characterized in that the structure further comprises a UV-and/or IR-isolating functional layer;
the ultraviolet isolating functional layer is positioned on one side of the optical waveguide layer far away from the scattering layer or one side of the scattering layer far away from the optical waveguide layer; the infrared isolating functional layer is positioned on one side of the optical waveguide layer far away from the scattering layer or one side of the scattering layer far away from the optical waveguide layer.
12. The optical assembly of any of claims 1 to 7, wherein the structure further comprises at least one substrate and at least one adhesive layer;
one of said bonding layers bonding one of said substrates to said optical waveguide layer; and/or
One of the adhesive layers adheres one of the substrates and the scattering layer.
13. A vehicle comprising a vehicle body and a light assembly according to any one of claims 1 to 12.
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| CN114923154B (en) | 2024-08-09 |
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