CN116736414A - Augmented reality automobile inner rearview mirror and preparation method thereof - Google Patents
Augmented reality automobile inner rearview mirror and preparation method thereof Download PDFInfo
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- CN116736414A CN116736414A CN202310712813.2A CN202310712813A CN116736414A CN 116736414 A CN116736414 A CN 116736414A CN 202310712813 A CN202310712813 A CN 202310712813A CN 116736414 A CN116736414 A CN 116736414A
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- 230000003190 augmentative effect Effects 0.000 title claims abstract description 13
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- 239000000463 material Substances 0.000 claims description 27
- 239000012528 membrane Substances 0.000 claims description 20
- 238000000034 method Methods 0.000 claims description 19
- 229910003697 SiBN Inorganic materials 0.000 claims description 12
- 229910010413 TiO 2 Inorganic materials 0.000 claims description 9
- 238000007747 plating Methods 0.000 claims description 9
- 238000001579 optical reflectometry Methods 0.000 claims description 6
- 230000003667 anti-reflective effect Effects 0.000 claims description 5
- 229910007717 ZnSnO Inorganic materials 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 claims description 4
- 238000002834 transmittance Methods 0.000 claims description 4
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- 230000007935 neutral effect Effects 0.000 abstract description 11
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- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 29
- 238000001755 magnetron sputter deposition Methods 0.000 description 22
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 21
- 239000011248 coating agent Substances 0.000 description 15
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- NRTOMJZYCJJWKI-UHFFFAOYSA-N Titanium nitride Chemical compound [Ti]#N NRTOMJZYCJJWKI-UHFFFAOYSA-N 0.000 description 1
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Classifications
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
- G02B1/10—Optical coatings produced by application to, or surface treatment of, optical elements
- G02B1/11—Anti-reflection coatings
- G02B1/113—Anti-reflection coatings using inorganic layer materials only
- G02B1/115—Multilayers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R1/00—Optical viewing arrangements; Real-time viewing arrangements for drivers or passengers using optical image capturing systems, e.g. cameras or video systems specially adapted for use in or on vehicles
- B60R1/02—Rear-view mirror arrangements
- B60R1/08—Rear-view mirror arrangements involving special optical features, e.g. avoiding blind spots, e.g. convex mirrors; Side-by-side associations of rear-view and other mirrors
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
- C23C14/0021—Reactive sputtering or evaporation
- C23C14/0036—Reactive sputtering
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
- C23C14/06—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the coating material
- C23C14/0641—Nitrides
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
- C23C14/06—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the coating material
- C23C14/0641—Nitrides
- C23C14/0652—Silicon nitride
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
- C23C14/06—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the coating material
- C23C14/0676—Oxynitrides
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
- C23C14/06—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the coating material
- C23C14/08—Oxides
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
- C23C14/06—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the coating material
- C23C14/08—Oxides
- C23C14/083—Oxides of refractory metals or yttrium
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
- C23C14/06—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the coating material
- C23C14/10—Glass or silica
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
- C23C14/22—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the process of coating
- C23C14/34—Sputtering
- C23C14/35—Sputtering by application of a magnetic field, e.g. magnetron sputtering
- C23C14/352—Sputtering by application of a magnetic field, e.g. magnetron sputtering using more than one target
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/12—Reflex reflectors
- G02B5/126—Reflex reflectors including curved refracting surface
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Chemistry (AREA)
- Metallurgy (AREA)
- Materials Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Multimedia (AREA)
- Inorganic Chemistry (AREA)
- Optical Elements Other Than Lenses (AREA)
Abstract
The invention relates to the technical field of automobile parts, in particular to an augmented reality automobile inner rear-view mirror and a preparation method thereof. The automobile inner rearview mirror comprises a glass substrate, and a semi-reflecting and semi-transmitting film and an anti-reflecting film which are respectively formed on the two side surfaces of the glass substrate; wherein the antireflection film comprises at least one high refractive index layer formed on the surface of the glass substrate and at least one low refractive index layer formed on the surface of the high refractive index layer; the refractive index of the high refractive index layer is 1.90-2.72; the refractive index of the low refractive index layer is 1.46-1.60. The automobile inner rearview mirror lens provided by the invention has the advantages that the displayed image has no double image and neutral color, and the reality can be effectively enhanced.
Description
Technical Field
The invention relates to the technical field of automobile parts, in particular to an augmented reality automobile inner rear-view mirror and a preparation method thereof.
Background
With the continuous updating and changing of the market concept of automobile products, the market has put higher demands on the aspects of car rearview mirror safety, operation convenience, durability, aesthetic property and the like. In addition, the existing intelligent rearview mirrors in the market have obvious defects that optical performances such as brightness and contrast ratio are too low, and chromatic aberration between a non-visual area and an intelligent display area is obvious when the intelligent display area is not lightened.
To solve the above problems, a half mirror has been developed. Chinese patent CN1148533358A discloses a cold-tone semi-reflective semi-transparent coated glass resistant to processing and a preparation method thereof, and titanium nitride materials are used for the first high refractive index layer and the top protective layer to form a sandwich protective structure, so as to play roles in scratch resistance and abrasion resistance.
Chinese patent CN108218250a discloses a semi-reflective and semi-transparent glass, which has good acid and alkali resistance, solvent resistance and water resistance through reasonable selection of materials with high and low refractive indexes.
Chinese patent CN109231847a discloses a semi-reflective and semi-transparent glass and a preparation method thereof, by limiting the material and thickness of the film layer, the semi-reflective and semi-transparent glass has adjustable visible light reflectivity in the range of 40% -70%, and has good processability and acid and alkali corrosion resistance.
When the half-reflecting half-transmitting mirror is applied to an automobile interior rear view mirror, the half-reflecting half-transmitting mirror can be used as a rear view mirror to reflect a rear view field when a display area is not lighted, and display contents can be observed when the display area is lighted. However, the half-reflecting mirror has the problem of image blurring caused by mirror image ghost, and meanwhile, partial products are used for improving the reflectivity of the half-reflecting mirror to cause the problems of color distortion (bluish) of a reflected image, reddening of a transmitted color (reddish image in a display area) and the like.
Disclosure of Invention
In order to overcome the defects in the prior art, the technical problems to be solved by the invention are as follows: an automobile inner rear-view mirror lens with a neutral color and no image double image and a preparation method thereof are provided.
In order to solve the technical problems, the invention provides an augmented reality automobile inner rearview mirror lens, which comprises a glass substrate, and a semi-reflective semi-transparent film and an antireflection film which are respectively formed on the two side surfaces of the glass substrate;
wherein the antireflection film comprises at least one high refractive index layer formed on the surface of the glass substrate and at least one low refractive index layer formed on the surface of the high refractive index layer;
the refractive index of the high refractive index layer is 1.90-2.72;
the refractive index of the low refractive index layer is 1.46-1.60.
The preparation method of the automobile inner rearview mirror lens comprises the steps of plating a semi-reflective semi-transparent film and an anti-reflective film on two side surfaces of a glass substrate respectively;
wherein the antireflection film comprises at least one high refractive index layer formed on the surface of the glass substrate and at least one low refractive index layer formed on the surface of the high refractive index layer;
the refractive index of the high refractive index layer is 1.90-2.72;
the refractive index of the low refractive index layer is 1.46-1.60.
The invention has the beneficial effects that: according to the invention, the antireflection film is deposited on the outer surface of the rearview mirror (glass substrate), and the semi-reflection and semi-transparent film layer is reasonably designed on the inner surface of the rearview mirror, so that the rear view reflected by the rearview mirror and the displayed reversing image are free of double images and natural in color, the reality sense of the rearview mirror is enhanced, and the driving safety of a vehicle is improved.
Drawings
FIG. 1 is a schematic view of a conventional mirror plate for an automobile interior mirror with a semi-reflective and semi-permeable membrane according to the present invention;
FIG. 2 is a schematic view showing an optical path of an antireflection film formed on the surface of a conventional mirror plate for an automobile interior rear view mirror having a semi-reflective and semi-transmissive film according to the present invention;
FIG. 3 is a viewShown as the invention in particular embodiments, tiO is deposited from HiPIMS power and MF power 2 The morphology photo of the film and the composition of relevant components form an analysis table;
FIG. 4 is a schematic view showing a structure of an automobile interior rear view mirror lens according to the present invention in an embodiment of the invention;
fig. 5 is a schematic view showing another structure of an automobile interior rear view mirror lens according to the present invention in an embodiment of the invention.
Description of the reference numerals:
in fig. 1 and 2: 11. a light source; 22 31, 42, refracting light; 21 32, reflecting light; 4. a semi-reflective semi-permeable membrane; 5. a glass substrate; 6. an antireflection film;
in fig. 4 and 5: 1, 11, a glass substrate; 2, 22, a first high refractive index layer; 21. a first medium refractive index layer; 3, 31, a first low refractive index layer; 4, 42, a second high refractive index layer; 41. a second medium refractive index layer; 5, 51, a second low refractive index layer; 6,61, third high refractive index layer; 7,71, third low refractive index layer; 8,81, fourth high refractive index layer; 9, 91, fourth low refractive index layer.
Detailed Description
In order to describe the technical contents, the achieved objects and effects of the present invention in detail, the following description will be made with reference to the embodiments in conjunction with the accompanying drawings.
In order to solve the defects of the existing intelligent rearview mirrors in the market in the prior art, a semi-reflective and semi-transparent film is plated on the back surface (the side surface deviating from the incident light) of a glass substrate, and the structure of the semi-reflective and semi-transparent film is shown in fig. 1. The semi-reflective and semi-permeable membrane 4 is located inside the mirror, i.e. between the display screen and the glass substrate 5. When a human eye views the rear view through the rearview mirror, a certain included angle (transverse/longitudinal included angle) is formed between the human eye and the rearview mirror, and the rear light source 11 (100%) is incident to the glass interface from the air, so that reflected light rays 21 and refracted light rays 22 are generated, and only about 4% of the reflected light rays 21 enter the human eye. Since the film layer (semi-reflective and semi-permeable film 4) is excessively thin in overall thickness, reflection and refraction of the refracted light rays 22 in the semi-reflective and semi-permeable film 4 can be temporarily ignored. At this time, the refracted ray 22 also generates reflected ray 32 and refracted ray 31 from the glass/film, air interface, and the reflected ray 32 is about 46% because the film is designed to have semi-reflective and semi-transmissive properties, and thus the refracted ray 31 is about 50%. The reflected light 32 reflects off the glass substrate 5, again creating reflected light (shown in phantom, but not considered due to the small amount) and refracted light 42 (about 42%) at the glass/air interface, where the refracted light 42 enters the human eye. Therefore, since the sub-image (4%) formed by the reflected light ray 21 and the main image (about 46%) formed by the refracted light ray 42 are simultaneously entered into the eyes, both the brightness is relatively large, thereby causing image blurring in the human eye. Meanwhile, the brightness ratio of the two increases with the increase of the observation angle. Similarly, the image displayed on the rear view mirror rear display screen also becomes blurred in the human eye.
On the basis of the prior art, the structure of the antireflection film is shown in fig. 2. As can be seen from the figure, the antireflection film 6 can significantly reduce the luminance of the sub-image and enhance the luminance of the main image, and thus the luminance ratio of the sub-image (0.5%) formed by the reflected light ray 21 and the main image (about 49.5%) formed by the refracted light ray 42 is reduced, thereby achieving the effect of augmented reality and avoiding the occurrence of ghost images.
Therefore, the present invention provides an augmented reality lens for an automobile interior rear view mirror, which can reduce the brightness of a secondary image and enhance the brightness of a primary image by using an antireflection film to reduce the brightness ratio of the two, thereby avoiding ghost images and augmented reality. In one embodiment, the automobile inner rearview mirror comprises a glass substrate, and a semi-reflecting and semi-transmitting film and an anti-reflecting film which are respectively formed on two side surfaces of the glass substrate; wherein the antireflection film comprises at least one high refractive index layer formed on the surface of the glass substrate and at least one low refractive index layer formed on the surface of the high refractive index layer; the refractive index of the high refractive index layer is 1.90-2.72; the refractive index of the low refractive index layer is 1.46-1.60. The glass substrate may be any glass for an automobile inner rear view mirror, such as float ultrawhite plate glass, and the thickness thereof may be selected according to practical needs, and is exemplified by a thickness of 3.5mm.
In an alternative embodiment, as shown in fig. 4, the antireflection film includes a third high refractive index layer 6, a third low refractive index layer 7, a fourth high refractive index layer 8, and a fourth low refractive index layer 9 sequentially stacked and formed on the surface of the glass substrate 1.
In the invention, the film material and the refractive index thereof mainly follow the basic principle of the design of an anti-reflection film, and are stacked with high/low refractive index, and the selection of the film material is mainly based on the consideration of the refractive index of the material. For the thickness of the film layer, the antireflection effect and the front and side color are mainly considered to be kept neutral as much as possible, for example, the main standard for keeping the front (8 °) color neutral is that the value of a and b is close to 0, and the standard for keeping the side (8 ° -60 °) color neutral is that the value of a and b is close to 0. For example, on the premise of ensuring the neutrality of the side surface color of the antireflection film system, the front surface and the side surface color of the semi-reflection and semi-transmission film system are designed so that the overall color of the plated two side surfaces is kept neutral. For example, on the premise of less reddening of the side face of the antireflection film system, the side face of the antireflection film system is made up by adjusting the side face of the semi-reflection and semi-transmission film system, so that the overall side face color is close to neutral after the two faces are plated.
In one embodiment, the material of the third high refractive index layer is selected from SiN x 、SiAlN x 、SiBN x 、SiTiN x 、SiZrN x 、NbO x 、ZrO x 、TiO 2 At least one of (a) and (b); wherein x is more than 1 and less than 3, and the thickness of the third high refractive index layer is 5-30 nm.
In one embodiment, the material of the third low refractive index layer is selected from SiO x 、SiBO x 、SiTiO x 、SiAlO x 、SiZrO x At least one of (a) and (b); wherein x is more than 1 and less than 3, and the thickness of the third low refractive index layer is 30-55 nm.
In one embodiment, the material of the fourth high refractive index layer is selected from SiN x 、SiAlN x 、SiBN x 、SiTiN x 、SiZrN x 、NbO x 、ZrO x 、TiO 2 At least one of (a) and (b); wherein x is more than 1 and less than 3, and the thickness of the fourth high refractive index layer is 15-45 nm.
In one embodiment, the material of the fourth low refractive index layer is selected from SiO x 、SiBO x 、SiTiO x 、SiAlO x 、SiZrO x At least one of (a) and (b); wherein x is more than 1 and less than 3, and the thickness of the fourth low refractive index layer is 85-120 nm.
In the practical use process, the brightness of the display can be adjusted, so that partial existing semi-reflective and semi-transparent film rearview mirrors can enable the inner view of the rearview mirrors to be brighter by improving the reflectivity, and therefore the mirror surface color is greenish and blueish, the transmission color is reddish, namely the real-time picture is reddish, and the image is unrealistic. For example, see Table 5 below, comparative example 2 uses TiO 2 (n=2.50, k (extinction coefficient) =0.0034) as a high refractive index layer material, although it can increase the brightness of the reflected light to 58.5%, the specular a value is-8.2, the color is greenish, the b value is significantly negative at an angle of 30 ° to 60 °, i.e., the color is bluish, and the frontal transmitted a value is 9.6, showing that the image is significantly reddish. Therefore, a reasonable film system design is required for the semi-reflective and semi-permeable film so that the anti-reflective film system and the semi-reflective and semi-permeable film system are not interfered with each other, so that the mirror lens of the rearview mirror can play a semi-reflective and semi-permeable role, and meanwhile, the anti-reflective film can be utilized to enhance the image reality, and the change of the side color during the combination of the two color systems can be eliminated through the reasonable film system design of the semi-reflective and semi-permeable film. For example, referring to table 7 below, when the antireflection film is coated on both sides of comparative example 4, the values a and b are both positive at an angle of 15 ° to 60 °, so that when the antireflection film is combined with the semi-reflective and semi-transmissive film, as in example 9, a specific film design, such as adding a medium refractive index layer, is combined, so that the side color is normal and the image is not color-shifted.
In one embodiment, the semi-reflective semi-transparent film comprises at least one high refractive index layer formed on the surface of the glass substrate and at least one low refractive index layer formed on the surface of the high refractive index layer; in the semi-reflective semi-permeable membrane, the refractive index of the high refractive index layer is 2.45-2.72; the refractive index of the low refractive index layer is 1.46-1.60.
In a first alternative embodiment, referring to fig. 4, the semi-reflective and semi-permeable membrane includes a first high refractive index layer 2, a first low refractive index layer 3, a second high refractive index layer 4, and a second low refractive index layer 5 sequentially stacked on the surface of the glass substrate 1.
In a second alternative embodiment, the semi-reflective semi-permeable membrane includes a first medium refractive index layer, a first high refractive index layer, a first low refractive index layer, a second high refractive index layer, and a second low refractive index layer laminated in this order; wherein the refractive index of the first medium refractive index layer is 1.60-2.45.
In a third alternative embodiment, referring to fig. 5, the semi-reflective and semi-permeable membrane includes a first medium refractive index layer 21, a first high refractive index layer 22, a first low refractive index layer 31, a second medium refractive index layer 41, a second high refractive index layer 42, and a second low refractive index layer 51, which are sequentially stacked; wherein the refractive index of the first intermediate refractive index layer 21 and the second intermediate refractive index layer 42 is 1.60 to 2.45.
In a preferred embodiment, the refractive index of the high refractive index layer in the semi-reflective and semi-permeable membrane is 2.45 to 2.72, and the refractive index of the low refractive index layer is 1.46 to 1.60.
In one embodiment, the first high refractive index layer and the second high refractive index layer are TiO deposited by MF power or HiPIMS power 2 And the thickness of the first high refractive index layer and the second high refractive index layer is 35-65 nm.
For convenience of writing, tiO is used herein 2 The film refers to the film formed by MF or HiPIMS power supply, but for TiO formed by HiPIMS power supply 2 The material of the film layer is understood to be TiO x Wherein X is more than or equal to 1.8 and less than or equal to 2.
In a preferred embodiment, the first high refractive index layer and the second high refractive index layer are TiO deposited by HiPIMS power supply 2 The film layer is obtained, so that the film layer with high refractive index n (n is more than or equal to 2.50 and less than or equal to 2.72) is obtained. Specifically, tiO 2 The material has three crystal structures including brookite type TiO 2 Rutile TiO 2 Anatase TiO 2 . Among them, brookite type synthesis is more difficult. Rutile type has higher stabilityIt has a higher refractive index, relative density and dielectric constant than anatase. Anatase is a metastable phase, and as the heating temperature increases, tiO 2 The phases of the film undergo a microstructural transformation of the amorphous-anatase phase-anatase and rutile mixed phase-rutile phase. According to the description of the prior related literature, tiO 2 The heating temperature for completely converting the film into the rutile state needs to reach more than 1000 ℃. However, tiO is deposited from conventional MF sources 2 After the film layer is heated and annealed (600-790 ℃), the film layer is difficult to be completely converted into a rutile structure due to the insufficient heating temperature, and the refractive index n of the annealed film layer is generally limited to be less than or equal to 2.50, so that the film layer with the refractive index larger than 2.50 is difficult to prepare. Meanwhile, conventional MF power supply magnetron sputtering deposited TiO 2 The film layer has less ions and lower ionization rate. Although vacuum cathodic arc deposition can produce very high particle ionization rate, it can produce large particles of metal/metal compounds causing excessive coating impurities, and the cathode is overheated requiring increased cooling requirements, thus being difficult to be suitable for the automotive glass coating industry. The HiPIMS power supply has higher pulse peak power and lower pulse duty ratio, and has no extra requirement on cathode cooling when ensuring high ionization rate, so the HiPIMS power supply is suitable for the use of the automobile glass coating industry. Relevant comparative parameters of HiPIMS (high power pulsed magnetron sputtering) power supply and MF power supply are shown in table 1.
TABLE 1
| MF | HiPIMS | |
| Working power (non-average power) | ＜120kW | 100kW～2MW |
| Peak power | 10W/cm 2 Stage | 1～3KW/cm 2 Stage |
| Current density | 10mA/cm 2 Stage | 1～5A/cm 2 Stage |
| Duty cycle | 100％ | 1％～15％ |
| Operating voltage | 0～800V | 0～2000V |
| Operating current | 0～200A | 0～1000A |
| Ionization rate | 30％～40％ | Up to > 80% |
| Film layer attachment force | Weak and weak | Strong strength |
Meanwhile, it has been demonstrated in preliminary experiments that TiO is deposited using HiPIMS power supply 2 The film layer had a rutile structure and the results are shown in table 2 and fig. 3.
TABLE 2
Therefore, the TiO with the refractive index n of 2.50-2.72 after the heating annealing can be obtained by adjusting the power supply parameters of the HiPIMS 2 And (3) a film layer. And benefit from TiO x High ionization rate of the film layer, and TiO during the heating annealing process of the antireflection film system x The film layer can be more transformed towards the rutile structure.
In a process for preparing TiO having a refractive index n of 2.50 to 2.72 x In the embodiment of the film layer, the process parameters are shown in table 3.
TABLE 3 Table 3
| Sequence number | Project | Parameters (parameters) |
| 1 | Power supply | HiPIMS power supply |
| 2 | Target material | TiO x A target material, wherein x is more than or equal to 1.8 and less than or equal to 1.9 |
| 3 | Process gas | Ar、O 2 The method comprises the steps of carrying out a first treatment on the surface of the Wherein O is 2 The inlet amount is 0-30 sccm |
| 4 | Pulse peak power | 100kW～2000kW |
| 5 | Pulse current | 300A～1000A |
| 6 | Pulse voltage | 300V～2000V |
| 7 | Duty cycle | 1％～15％ |
| 8 | Pulse width | 0～150μs |
In one embodiment, the material of the first low refractive index layer is selected from SiO x 、SiBO x 、SiTiO x 、SiAlO x 、SiZrO x At least one of (a) and (b); wherein x is more than 1 and less than 3, and the thickness of the first low refractive index layer is 80-110 nm.
In one embodiment, the material of the second low refractive index layer is selected from SiO x 、SiBO x 、SiTiO x 、SiAlO x 、SiZrO x At least one of (a) and (b); wherein x is more than 1 and less than 3, and the thickness of the second low refractive index layer is 75-100 nm.
Based on the aforementioned second alternative embodiment, the material of the first medium refractive index layer is selected from SiN x O y 、SiBN x O y 、SiTiN x O y 、SiAlN x O y 、SiZrN x O y 、ZnO x 、ZnAlO x 、ZnSnO x 、SiN x 、Nb 2 O 5 、ZrO x 、SiZrN x 、SiAlN x 、SiBN x 、SiTiN x At least one of (a) and (b); wherein x is more than 1 and less than or equal to 3, y is more than 1 and less than 3, and the thickness of the first medium refractive index layer is 0-100 nm.
In a third alternative embodiment, the material of the first and second medium refractive index layers is selected from SiN x O y 、SiBN x O y 、SiTiN x O y 、SiAlN x O y 、SiZrN x O y 、ZnO x 、ZnAlO x 、ZnSnO x 、SiN x 、Nb 2 O 5 、ZrO x 、SiZrN x 、SiAlN x 、SiBN x 、SiTiN x At least one of (a) and (b); wherein x is more than 1 and less than or equal to 3, y is more than 1 and less than 3, and the thicknesses of the first medium refractive index layer and the second medium refractive index layer are 0-100 nm.
In one embodiment, the automotive interior mirror lens has an a value of: -3.ltoreq.a.ltoreq.0; the value b is: b is more than or equal to-1 and less than or equal to-1; the visible light reflectivity is more than or equal to 48 and less than or equal to 60.
In one embodiment, the automotive interior mirror lens has an a value in the Lab value of visible light transmission color of: a is less than or equal to 3.5; the visible light transmittance is more than or equal to 40 and less than or equal to 52.
A preparation method of an augmented reality automobile inner rearview mirror lens comprises the steps of plating a semi-reflective semi-transparent film and an anti-reflective film on two side surfaces of a glass substrate respectively; wherein the antireflection film comprises at least one high refractive index layer formed on the surface of the glass substrate and at least one low refractive index layer formed on the surface of the high refractive index layer; the refractive index of the high refractive index layer is 1.90-2.72; the refractive index of the low refractive index layer is 1.46-1.60.
In one embodiment, the semi-reflective semi-transparent film comprises a first high refractive index layer, a first low refractive index layer, a second high refractive index layer and a second low refractive index layer which are sequentially laminated and formed by magnetron sputtering; the first high-refractive-index layer is formed on the surface of the glass substrate by magnetron sputtering, and the refractive indexes of the first high-refractive-index layer and the second high-refractive-index layer are 2.45-2.72; the refractive index of the first low refractive index layer and the second low refractive index layer is 1.46-1.60.
In a first alternative embodiment, the semi-reflective and semi-permeable membrane includes a first high refractive index layer, a first low refractive index layer, a second high refractive index layer, and a second low refractive index layer that are sequentially laminated and formed by magnetron sputtering.
In a second alternative embodiment, the semi-reflective semi-permeable membrane comprises a first medium refractive index layer, a first high refractive index layer, a first low refractive index layer, a second high refractive index layer and a second low refractive index layer which are formed by sequentially laminating magnetron sputtering; the first medium refractive index layer is formed on the surface of the glass substrate by magnetron sputtering, and the refractive index of the first medium refractive index layer is 1.60-2.45.
In a third alternative embodiment, the semi-reflective semi-permeable membrane comprises a first medium refractive index layer, a first high refractive index layer, a first low refractive index layer, a second medium refractive index layer, a second high refractive index layer and a second low refractive index layer which are formed by sequentially laminating magnetron sputtering; the first medium refractive index layer is formed on the surface of the glass substrate by magnetron sputtering, and the refractive indexes of the first medium refractive index layer and the second medium refractive index layer are 1.60-2.45.
In one embodiment, the first and second high refractive index layers are deposited from TiO deposited from an MF or HiPIMS power source 2 And the thickness of the first high refractive index layer and the second high refractive index layer is 35-65 nm.
Preparation example 1 (taking example 1 as an example)
A preparation method of an augmented reality automobile inner rearview mirror lens comprises the following steps:
s1, washing and drying float ultrawhite plate glass with the thickness of 3.5mm, and then entering a magnetron sputtering coating line to coat an antireflection film layer;
s2, magnetron sputtering a third high refractive index layer 61: tiO (titanium dioxide) 2 The parameters are as follows:
target number: 1 double-rotating cathode; and (3) a target power supply: MF (intermediate frequency power supply);
the target is configured as ceramic TiO x (x=1.8); process gas: ar: o (O) 2 ＝1000：30；
Sputtering air pressure 2.8E -3 mbar; the thickness of the coating is 16.6nm;
s3, magnetron sputtering a third low refractive index layer 71: siO (SiO) 2 The parameters are as follows:
target number: 2 double rotary cathodes; and (3) a target power supply: MF (intermediate frequency power supply);
the target was configured as SiAl (Si: al=92:8 wt%); process gas: ar: o (O) 2 ＝700：350；
Sputtering air pressure 3.5E -3 mbar; the thickness of the coating film is 42.4nm;
s4, magnetron sputtering a fourth high refractive index layer 81: tiO (titanium dioxide) 2 The parameters are as follows:
target number: 1 double-rotating cathode; and (3) a target power supply: MF (intermediate frequency power supply);
the target is configured as ceramic TiO x (x=1.8); process gas: ar: o (O) 2 ＝1000：30；
Sputtering air pressure 2.8E -3 mbar; the thickness of the coating is 24.1nm;
s5, magnetron sputtering a fourth low refractive index layer 91: siO (SiO) 2 The parameters are as follows:
target number: 4 double rotary cathodes; and (3) a target power supply: MF (intermediate frequency power supply);
the target was configured as SiAl (Si: al=92:8 wt%); process gas: ar: o (O) 2 ＝700：350；
Sputtering air pressure 3.4E -3 mbar; the thickness of the coating film is 105.1nm;
s6, after the film plating is finished, carrying out optical test and quality inspection on the antireflection film, and after the optical test is finished, conveying the antireflection film to a powder spraying machine for powder spraying and film collecting;
s7, after being fully packed, the film is transported to a film plating first-placed position and is turned by using a crane, and after washing and drying, the film enters a magnetron sputtering film plating line to plate a semi-reflective semi-transparent film layer;
s8, measurement and controlSputtering the first high refractive index layer 22: tiO (titanium dioxide) 2 The parameters are as follows:
target number: 2 double rotary cathodes; and (3) a target power supply: MF (intermediate frequency power supply);
the target is configured as ceramic TiO x (x=1.8); process gas: ar: o (O) 2 ＝1000：30；
Sputtering air pressure 2.8E -3 mbar; the thickness of the coating film is 46.5nm;
s9, magnetron sputtering a first low refractive index layer 31: siO (SiO) 2 The parameters are as follows:
target number: 4 double rotary cathodes; and (3) a target power supply: MF (intermediate frequency power supply);
the target was configured as SiAl (Si: al=92:8 wt%); process gas: ar: o (O) 2 ＝700：350；
Sputtering air pressure 3.4E -3 mbar; the thickness of the coating film is 98.5nm;
s10, magnetron sputtering a second high refractive index layer 42: tiO (titanium dioxide) 2 The parameters are as follows:
target number: 2 double rotary cathodes; and (3) a target power supply: MF (intermediate frequency power supply);
the target is configured as ceramic TiO x (x=1.8); process gas: ar: o (O) 2 ＝1000：30；
Sputtering air pressure 2.8E -3 mbar; the thickness of the coating is 48.2nm;
s11, magnetron sputtering the second low refractive index layer 51: siO (SiO) 2 The parameters are as follows:
target number: 4 double rotary cathodes; and (3) a target power supply: MF (intermediate frequency power supply);
the target was configured as SiAl (Si: al=92:8 wt%); process gas: ar: o (O) 2 ＝700：350；
Sputtering air pressure 3.4E -3 mbar; the thickness of the coating is 85.1nm;
s12, after film coating is completed, carrying out optical test and quality inspection on the whole film layer, and conveying the optical test to a powder spraying machine for powder spraying and film collecting, and conveying to a cutting procedure after one package is fully collected;
s13, cutting the film-plated raw sheet into rectangular small sheets by using a glass cutting machine, cutting glass into the size of a rearview mirror drawing by using a CNC (computer numerical control) processing center, edging, cleaning the film-plated raw sheet by using pure water and a hairbrush to clean dirt on the surface of the film-plated raw sheet, and drying to provide clean condition guarantee for the next glass semi-steel so as to avoid the problems of spotting, distortion and the like of a mirror surface;
s14, heating and annealing the cleaned film-coated raw sheet in a toughening furnace, wherein the specific parameters are as follows: heating process (with the temperature of the heated air as a set standard): preheating temperature is 570 ℃, and preheating time is 240s; heating temperature is 690 ℃, and heating time is 240s; annealing temperature 300 ℃ and annealing time 240s.
S15, detecting the dimensional stability and the coating effect (the lens with defects such as scratches, pits, distortion, edge burst and the like on the surface are eliminated) of the lens, and finally, checking to obtain the finished automobile inner rear view mirror lens.
Preparation example 2 (taking example 9 as an example)
The preparation method of the augmented reality automobile inner rearview mirror lens further comprises the steps of performing magnetron sputtering on a first medium refractive index layer between S7 and S8 and performing magnetron sputtering on a second medium refractive index layer between S9 and S10 on the basis of preparation example 1;
wherein, magnetron sputtering is carried out on the first medium refractive index layer: siO (SiO) x N y The parameters are as follows:
target number: 4 double rotary cathodes; and (3) a target power supply: MF (intermediate frequency power supply);
the target was configured as SiAl (Si: al=92:8 wt%); process gas: ar: o (O) 2 ：N2＝700：60：500；
Sputtering air pressure 3.9E -3 mbar; the thickness of the coating film is 71.6nm;
magnetron sputtering a second medium refractive index layer: siO (SiO) x N y The parameters are as follows:
target number: 2 double rotary cathodes; and (3) a target power supply: MF (intermediate frequency power supply);
the target was configured as SiAl (Si: al=92:8 wt%); process gas: ar: o (O) 2 ：N2＝700：60：500；
Sputtering gasPressure 4.2E -3 mbar; the thickness of the coating film is 19.8nm;
for other parameters of the plating layer, such as selection of the number of targets, target preparation, process gas, sputtering gas pressure, etc., can be adaptively adjusted according to specific plating layer composition, plating layer thickness and target power supply selection, which are common techniques in the art and are not described herein.
Examples 1 to 9 and comparative examples 1 to 4
The preparation of the automobile interior rear view mirror lens was performed according to the following tables 4 to 9 and according to the aforementioned preparation example 1 or 2, and the automobile interior rear view mirror lens obtained by the preparation was subjected to optical inspection, and the results are shown in tables 6 to 9.
Wherein the optical data were measured using an Agilent Cary 7000 angle colorimeter and the color characterization system using the CIELab color system.
In table 6, the first and second high refractive index layers of comparative example 1 and the fourth high refractive index layer of example 1 are each TiO formed by MF target power 2 Layer (n=2.50, k=0.00034); the rest is TiO formed by HiPIMS target power supply 2 Layer (n=2.70, k= 0.00226);
in Table 7, the first and second high refractive index layers of comparative example 2, and the fourth and third high refractive index layers of example 3 are TiO formed with MF target power 2 Layer (n=2.50, k=0.00034); the rest is TiO formed by HiPIMS target power supply 2 Layer (n=2.70, k= 0.00226);
in Table 8, the fourth high refractive index layer and the third high refractive index layer of example 5 are TiO formed with MF target power supply 2 Layer (n=2.50, k=0.00034), the remainder being TiO formed by HiPIMS target power supply 2 Layer (n=2.61, k= 0.00458); in example 6, tiO was formed using HiPIMS target power 2 Layer (n=2.64, k=0.00323); the other examples and comparative examples are TiO formed with HiPIMS target power 2 Layer (n=2.70, k= 0.00226).
In Table 9In comparative example 4, the fourth high refractive index layer, the third high refractive index layer, the first high refractive index layer and the second high refractive index layer were all TiO formed by MF target power supply 2 Layer (n=2.50, k=0.00034), the first high refractive index layer in example 8 was TiO formed with MF target power 2 Layer (n=2.50, k=0.00034), the remainder being TiO formed with HiPIMS target power supply 2 Layer (n=2.70, k= 0.00226).
TABLE 4 Table 4
TABLE 5
TABLE 6
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As can be seen from comparative examples 1 and 1, in example 1, after the outer surface of the mirror lens is additionally coated with the antireflection film, the rear view and the display image of the mirror are free of double images, the images are clear and real, and the safety of vehicle running is improved. Example 2 use of high hardness ZrO x 、SiZrO x The film layer is used as a material of the high refractive index layer and the low refractive index layer, so that the durability of the rearview mirror film layer is improved. Through testing, the pencil hardness of the inner surface and the outer surface of the rearview mirror is more than 9H.
TABLE 7
Comparative example 2 deposition of TiO using MF power supply 2 (n=2.50, k=0.00034), the film thickness change to increase the reflectance of the mirror, although the reflectance is increased to 58.5, the mirror color is greenish (negative for a value of Lab value of reflection of visible light), angular blue, green (negative for a value of Lab value of reflection of visible light from 0 ° to 45 °, negative for b value of reflection of visible light from 45 ° to 60 °); tiO deposition Using HiPIMS Power supply in examples 2 and 3 2 (n=2.70, k=0.00266) and adjusting the film structure, wherein the reflectivity of 0-60 degrees is larger than 59% finally, the values of a and b are neutral, the images are free of double images, the rear view and the displayed images can be clearly and truly reflected, and the running safety of the vehicle is improved.
TABLE 8
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Comparative example 3 use Nb 2 O 5 (n=2.38, k=0.00021) as a high refractive index material, the visible light reflectance thereof is only 42.8%, which is much different from 50%; example 5 deposition of TiO using HiPIMS Power supply 2 (n=2.61, k= 0.00458), its visible light reflectance reaches 55.2%; EXAMPLE 6 deposition of TiO using HiPIMS Power supply 2 (n=2.64, k=0.00323), its visible light reflectance reaches 56.1%; EXAMPLE 7 deposition of TiO using HiPIMS Power supply 2 (n=2.70, k= 0.00226), its visible light reflectance reaches 55.1%; and examples 5, 6 and 7 are all on the outer surface of the rearview mirror lensThe anti-reflection coating layer is plated, the image is free of double images, the rear view and the displayed image can be clearly and truly reflected, and the driving safety of the vehicle is improved.
TABLE 9
Comparative example 4 is a rearview mirror lens with an antireflection film layer plated on both sides, which can greatly reduce the brightness of a secondary image, but 15-60 degrees of the antireflection film layer is biased to the value a in the Lab value of the visible light reflectivity, and the field of view behind the reflection is biased to red; in the embodiment 8 and the embodiment 9, through reasonable design of the semi-reflective and semi-permeable membrane layer, when the semi-reflective and semi-permeable membrane layer is plated on the outer surface and the inner surface of the rearview mirror lens, the value a of Lab value of visible light reflectivity is neutral at 15 degrees to 60 degrees. After the medium refractive index layer is added, it can be seen that the value a is more neutral in the Lab value of the visible light reflectivity from 45 to 60 degrees. In the embodiment 8 and the embodiment 9, through reasonable film system design, the images of the rearview mirror lens have no double images, and the rear view field reflected by 0-60 degrees is more neutral in color, so that the rear view field and the displayed images can be clearly and truly reflected, and the safety of vehicle running is improved.
In summary, the antireflection film is deposited on the outer surface of the rearview mirror lens, and the semi-reflective and semi-transparent film layer is reasonably designed on the inner surface of the rearview mirror lens, so that the rear view reflected by the rearview mirror and the displayed reversing image are free of double images and natural in color, the reality sense of the rearview mirror is enhanced, and the driving safety of a vehicle is improved. The reflectivity of the rearview mirror lens prepared by the preparation method provided by the invention is 48-60%, the reflection a value (8 degrees) is-3-0, the reflection b value (8 degrees) is-1, the transmittance is 40-52%, and the transmittance a value (8 degrees) is less than or equal to 3.5.
The foregoing description is only illustrative of the present invention and is not intended to limit the scope of the invention, and all equivalent changes made by the specification and drawings of the present invention, or direct or indirect application in the relevant art, are included in the scope of the present invention.
Claims (22)
1. The augmented reality automobile inner rearview mirror lens is characterized by comprising a glass substrate, and a semi-reflective semi-transparent film and an antireflection film which are respectively formed on the two side surfaces of the glass substrate;
wherein the antireflection film comprises at least one high refractive index layer formed on the surface of the glass substrate and at least one low refractive index layer formed on the surface of the high refractive index layer;
the refractive index of the high refractive index layer is 1.90-2.72;
the refractive index of the low refractive index layer is 1.46-1.60.
2. The automobile interior mirror lens according to claim 1, wherein the antireflection film comprises a third high refractive index layer, a third low refractive index layer, a fourth high refractive index layer, and a fourth low refractive index layer laminated in this order.
3. An automotive interior mirror lens according to claim 2, characterized in that the material of the third high refractive index layer is selected from SiN x 、SiAlN x 、SiBN x 、SiTiN x 、SiZrN x 、NbO x 、ZrO x 、TiO 2 At least one of (a) and (b);
wherein x is more than 1 and less than 3, and the thickness of the third high refractive index layer is 5-30 nm.
4. An automotive interior mirror lens according to claim 2, characterized in that the material of the third low refractive index layer is selected from the group consisting of SiO x 、SiBO x 、SiTiO x 、SiAlO x 、SiZrO x At least one of (a) and (b);
wherein x is more than 1 and less than 3, and the thickness of the third low refractive index layer is 30-55 nm.
5. An automotive interior mirror lens according to claim 2, characterized in that the material of the fourth high refractive index layer is selected from SiN x 、SiAlN x 、SiBN x 、SiTiN x 、SiZrN x 、NbO x 、ZrO x 、TiO 2 At least one of (a) and (b);
wherein x is more than 1 and less than 3, and the thickness of the fourth high refractive index layer is 15-45 nm.
6. An automotive interior mirror lens according to claim 2, characterized in that the material of the fourth low refractive index layer is selected from the group consisting of SiO x 、SiBO x 、SiTiO x 、SiAlO x 、SiZrO x At least one of (a) and (b);
wherein x is more than 1 and less than 3, and the thickness of the fourth low refractive index layer is 85-120 nm.
7. The automobile interior rear view mirror lens according to claim 1, wherein the semi-reflective and semi-transmissive film comprises at least one high refractive index layer formed on a surface of the glass substrate and at least one low refractive index layer formed on a surface of the high refractive index layer;
in the semi-reflective semi-permeable membrane, the refractive index of the high refractive index layer is 2.45-2.72; the refractive index of the low refractive index layer is 1.46-1.60.
8. The automotive interior mirror lens of claim 7, wherein the semi-reflective semi-permeable membrane comprises a first high refractive index layer, a first low refractive index layer, a second high refractive index layer, and a second low refractive index layer laminated in that order.
9. The automotive interior mirror lens of claim 7, wherein the semi-reflective semi-permeable membrane comprises a first medium refractive index layer, a first high refractive index layer, a first low refractive index layer, a second high refractive index layer, and a second low refractive index layer laminated in that order;
wherein the refractive index of the first medium refractive index layer is 1.60-2.45.
10. The automotive interior mirror lens of claim 7, wherein the semi-reflective semi-permeable membrane comprises a first medium refractive index layer, a first high refractive index layer, a first low refractive index layer, a second medium refractive index layer, a second high refractive index layer, and a second low refractive index layer, laminated in that order;
wherein the refractive index of the first medium refractive index layer and the second medium refractive index layer is 1.60-2.45.
11. The automotive interior mirror lens according to any one of claims 8 to 10, characterized in that the first and second high refractive index layers are TiO deposited by MF power supply or HiPIMS power supply 2 And the thickness of the first high refractive index layer and the second high refractive index layer is 35-65 nm.
12. An automotive interior mirror lens according to any one of claims 8 to 10, characterized in that the material of the first low refractive index layer is selected from SiO x 、SiBO x 、SiTiO x 、SiAlO x 、SiZrO x At least one of (a) and (b);
wherein x is more than 1 and less than 3, and the thickness of the first low refractive index layer is 80-110 nm.
13. An automotive interior mirror lens according to any one of claims 8 to 10, characterized in that the material of the second low refractive index layer is selected from SiO x 、SiBO x 、SiTiO x 、SiAlO x 、SiZrO x At least one of (a) and (b);
wherein x is more than 1 and less than 3, and the thickness of the second low refractive index layer is 75-100 nm.
14. An automotive interior mirror lens according to claim 9 in which the material of the first medium refractive index layer is selected from SiN x O y 、SiBN x O y 、SiTiN x O y 、SiAlN x O y 、SiZrN x O y 、ZnO x 、ZnAlO x 、ZnSnO x 、SiN x 、Nb 2 O 5 、ZrO x 、SiZrN x 、SiAlN x 、SiBN x 、SiTiN x At least one of (a) and (b);
wherein x is more than 1 and less than or equal to 3, y is more than 1 and less than 3, and the thickness of the first medium refractive index layer is 0-100 nm.
15. The automotive interior mirror lens of claim 10, wherein the material of the first and second medium refractive index layers is selected from SiN x O y 、SiBN x O y 、SiTiN x O y 、SiAlN x O y 、SiZrN x O y 、ZnO x 、ZnAlO x 、ZnSnO x 、SiN x 、Nb 2 O 5 、ZrO x 、SiZrN x 、SiAlN x 、SiBN x 、SiTiN x At least one of (a) and (b);
wherein x is more than 1 and less than or equal to 3, y is more than 1 and less than 3, and the thicknesses of the first medium refractive index layer and the second medium refractive index layer are 0-100 nm.
16. The automotive interior mirror lens of claim 1, wherein the automotive interior mirror lens has a value of a in Lab of visible light reflection color: -3.ltoreq.a.ltoreq.0;
the value b is: b is more than or equal to-1 and less than or equal to-1;
the visible light reflectivity is more than or equal to 48 and less than or equal to 60.
17. The automotive interior mirror lens of claim 1, wherein the automotive interior mirror lens has a value of a in Lab of visible light transmission color: a is less than or equal to 3.5;
the visible light transmittance is more than or equal to 40 and less than or equal to 52.
18. The preparation method of the augmented reality automobile inner rearview mirror lens is characterized by comprising the steps of plating a semi-reflective semi-transparent film and an anti-reflective film on two side surfaces of a glass substrate respectively;
wherein the antireflection film comprises at least one high refractive index layer formed on the surface of the glass substrate and at least one low refractive index layer formed on the surface of the high refractive index layer;
the refractive index of the high refractive index layer is 1.90-2.72;
the refractive index of the low refractive index layer is 1.46-1.60.
19. The method of manufacturing according to claim 18, wherein the semi-reflective semi-permeable membrane comprises a first high refractive index layer, a first low refractive index layer, a second high refractive index layer, and a second low refractive index layer laminated in this order;
wherein the refractive index of the first high refractive index layer and the second high refractive index layer is 2.45-2.72;
the refractive index of the first low refractive index layer and the second low refractive index layer is 1.46-1.60.
20. The method of manufacturing according to claim 18, wherein the semi-reflective semi-permeable membrane comprises a first medium refractive index layer, a first high refractive index layer, a first low refractive index layer, a second high refractive index layer, and a second low refractive index layer laminated in this order;
wherein the refractive index of the first medium refractive index layer is 1.60-2.45.
21. The method of manufacturing according to claim 18, wherein the semi-reflective semi-permeable membrane comprises a first medium refractive index layer, a first high refractive index layer, a first low refractive index layer, a second medium refractive index layer, a second high refractive index layer, and a second low refractive index layer laminated in this order;
wherein the refractive index of the first medium refractive index layer and the second medium refractive index layer is 1.60-2.45.
22. The method of any one of claims 19 to 21, wherein the first and second high refractive index layers are deposited of TiO from MF power source or HiPIMS power source 2 A film layer, saidThe thickness of the first high refractive index layer and the second high refractive index layer is 35-65 nm.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310712813.2A CN116736414A (en) | 2023-06-15 | 2023-06-15 | Augmented reality automobile inner rearview mirror and preparation method thereof |
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| CN202310712813.2A CN116736414A (en) | 2023-06-15 | 2023-06-15 | Augmented reality automobile inner rearview mirror and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114853358A (en) * | 2022-06-21 | 2022-08-05 | 长兴旗滨节能玻璃有限公司 | Processing-resistant cold-tone semi-reflective and semi-permeable coated glass and preparation method thereof |
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2023
- 2023-06-15 CN CN202310712813.2A patent/CN116736414A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114853358A (en) * | 2022-06-21 | 2022-08-05 | 长兴旗滨节能玻璃有限公司 | Processing-resistant cold-tone semi-reflective and semi-permeable coated glass and preparation method thereof |
| CN114853358B (en) * | 2022-06-21 | 2024-05-24 | 长兴旗滨节能玻璃有限公司 | Processing-resistant cold-tone semi-reflective semi-transparent coated glass and preparation method thereof |
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