Reflector and rearview mirror
By setting reflective components with different reflectivity and transmittance in different areas of the reflector, the problem that existing rearview mirrors cannot simultaneously meet the integrated requirements of optical element light conduction and visual effects is solved, the light reception and emission requirements of optical elements are realized, and driving safety is improved.
Patent Information
- Application Number
- CN202011146601.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2020-10-23
- Publication Date
- 2025-09-05
- Estimated Expiration
- 2040-10-23
AI Technical Summary
Existing rearview mirrors cannot simultaneously meet the optical components' requirements for light transmission and maintain integrated visual effects, posing a safety hazard.
A reflector is designed. Reflective components with different reflectivities and transmittances are arranged in different areas of the reflector, including a first reflective component and a second reflective component. The reflectivity of the second reflective component is lower than that of the first reflective component, but the transmittance is higher than that of the first reflective component. The second reflective component can be combined with an electrochromic component to ensure that the optical element can receive or emit sufficient light.
It realizes the integration of the light transmission requirements of the reflector and optical elements and the overall visual effect, improves driving safety and expands the functions of the rearview mirror.
Smart Images

Figure CN112198572B_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the field of optical technology, in particular to the field of reflector technology, and specifically to a reflector and a rearview mirror. Background Art
[0002] Rearview mirrors are important tools for drivers to directly obtain external information. In order to prevent traffic accidents and ensure personal safety, all countries have stipulated that rearview mirrors must be installed on cars.
[0003] Originally, a full-reflective mirror was generally used as a vehicle-mounted rearview mirror. For example, CN202180780U discloses a vehicle-mounted full-reflective touch rearview mirror, which includes a base plate, a touch display screen and a reflector stacked in sequence, and uses a full-reflective mirror.
[0004] However, with the increasing demand for optical components in rearview mirrors, CN1436679A, for example, discloses an anti-glare rearview mirror module that includes optical components such as a glare sensor and an ambient light sensor. Optical components are typically placed behind the reflector, but the original fully reflective mirror cannot meet the optical components' light transmission requirements. The current conventional practice is to remove the reflective layer in the corresponding area of the fully reflective mirror to meet the optical components' light transmission requirements. However, removing part of the reflective layer makes the rearview mirror's visual effect less integrated, which may cause the driver to misjudge the situation behind the vehicle, posing a safety hazard.
[0005] For example, CN102529816B discloses a rearview mirror assembly with an optical indicator, which includes at least one mirror base and a lens head, wherein the lens head covers a mirror glass installed inside the lens head and an optical warning indicator, wherein the optical warning indicator generates light in response to a sensor signal and notifies the operator of information related to the danger, and the light is irradiated through the mirror glass. In the rearview mirror assembly, the light is irradiated through the mirror glass by removing at least part of the reflective layer and / or color layer of the mirror glass, but this structure will make it impossible to integrate the visual effect of the entire rearview mirror.
[0006] In summary, existing rearview mirrors cannot simultaneously meet the light transmission requirements of existing optical elements and have an integrated visual reflection effect.
[0007] Therefore, it is necessary to develop a reflector and a rearview mirror that can overcome the above-mentioned defects of not being able to simultaneously meet the light transmission requirements of the optical elements in the existing rearview mirror and having a reflective effect with an integrated visual effect. Summary of the Invention
[0008] In view of the problems existing in the prior art, the present invention provides a reflector, which can simultaneously meet the requirements of local transmittance meeting the optical element's requirements for light and the integration of the overall visual effect. When used in a rearview mirror, the optical element at the back of the reflector can receive incident light of sufficient intensity, or the optical element can emit its own light of sufficient intensity, thereby greatly expanding the function of the traditional rearview mirror and improving driving safety.
[0009] To achieve this object, the present invention adopts the following technical solutions:
[0010] In a first aspect, the present invention provides a reflector, which includes a basic component; the basic component includes a first substrate; the first substrate includes a first area and a second area; the basic component includes a first reflective component arranged in the first area and a second reflective component arranged in the second area; the reflectivity of the second reflective component is lower than the reflectivity of the first reflective component.
[0011] The reflector provided by the present invention improves the transmittance of local light in the corresponding area of the reflector and the optical element by setting the reflectivity of the second reflective component located in the second area corresponding to the optical element to be lower than the reflectivity of the first reflective component in the first area, while still maintaining the higher reflectivity and overall reflection effect of other areas of the reflector. It can simultaneously meet the optical element's demand for light and the need for the overall integrated visual effect of the rearview mirror, thereby improving driving safety and expanding the functions of traditional rearview mirrors.
[0012] The first substrate layer of the present invention is preferably a transparent material with a certain hardness, such as glass or plastic.
[0013] Preferably, the transmittance of the second reflective component is higher than the transmittance of the first reflective component.
[0014] In the present invention, not only is the reflectivity of the second reflective component lower than that of the first reflective component, but the transmittance of the second reflective component is higher than that of the first reflective component, ensuring that the optical element can receive sufficient light or the light emitted by the optical element can be well emitted.
[0015] Preferably, an electrochromic component is provided on the ambient light incident surface of the base component.
[0016] The reflector provided by the present invention can also be combined with an electrochromic component to further achieve other technical effects such as anti-glare.
[0017] Preferably, a second substrate is provided on a side of the electrochromic component away from the base component.
[0018] The present invention provides a second substrate to serve as a protective layer. The second substrate is preferably made of a transparent material with a certain hardness, such as glass or plastic.
[0019] Preferably, the base component and the second substrate are respectively connected to the electrochromic component via adhesive layers.
[0020] The adhesive layer of the present invention is a transparent adhesive layer, and its material can be, for example, any one of polyvinyl butyral (PVB), ethylene-vinyl acetate copolymer (EVA), OCA (Optically Clear Adhesive) optical glue, SCA optical glue, ionic interlayer (Surper Safe Glas, SGP), liquid optical adhesive LOCA (Liquid Optical Clear Adhesive) or acrylic, or a combination of at least two of them. Typical non-limiting combinations include a combination of polyvinyl butyral and SCA optical glue, a combination of SCA optical glue and ionic interlayer, a combination of liquid optical adhesive LOCA and acrylic, etc.
[0021] Preferably, when the reflector is combined with the optical element, the projection of the photosensitive surface and / or light-emitting surface of the optical element on the first substrate falls within the range of the second area, thereby ensuring that light can enter the optical element through the second area and / or the light emitted by the optical element can be emitted through the second area.
[0022] Preferably, the electrochromic component includes an A region and a B region, the projection of the A region on the first substrate at least partially falls within the range of the first region, and the projection of the B region on the first substrate falls within the range of the second region; when the electrochromic component is adjusted to a colored state, the transmittance of the B region can be adjusted to a state higher than the transmittance of the A region.
[0023] The optical properties of the electrochromic component of the present invention can reversibly change between a colored state and a transparent state. The degree of coloration of the electrochromic component between the colored and transparent states is generally expressed in terms of transmittance. Specifically, when the electrochromic component is in the colored state, the transmittance of light passing through the electrochromic component is minimized, while when the electrochromic component is in the transparent state, the transmittance of light passing through the electrochromic component is maximized. When the electrochromic component is adjusted to the colored state, the transmittance of region B is increased by adjusting the transmittance of region A to a state higher than that of region B, thereby increasing the intensity of light received by or emitted by the optical element.
[0024] Preferably, in a direction perpendicular to the first substrate, the electrochromic component includes a first sub-substrate, a first transparent conductive layer, an ion storage layer, an electrolyte layer, an electrochromic material layer, a second transparent conductive layer and a second sub-substrate stacked in sequence, the first transparent conductive layer is led out through at least one first electrode, and the second transparent conductive layer is led out through at least one second electrode.
[0025] The first and second sub-substrates are optically transparent materials, specifically flexible substrate materials such as PET (Polyester Film), cycloolefin copolymer, or triacetyl cellulose, to minimize the impact on transmittance. The thickness of the flexible substrate material can be 20-500 μm, for example, 20 μm, 50 μm, 100 μm, 150 μm, 200 μm, 250 μm, 300 μm, 350 μm, 400 μm, 450 μm, or 500 μm, but is not limited to the listed values. Other values within the numerical range not listed are also applicable.
[0026] The first transparent conductive layer is plated on the first sub-substrate, and the second transparent conductive layer is plated on the second sub-substrate. The first transparent conductive layer and the second transparent conductive layer can be made of materials such as indium-tin oxide (ITO), aluminum zinc oxide (AZO), fluorine doped tin oxide (FTO), silver nanowires, graphene, carbon nanotubes, metal grids or silver nanoparticles, and their conductive properties are used to provide a corresponding electric field for the electrochromic material layer and the ion storage layer.
[0027] The electrochromic material layer covers the second transparent conductive layer. The specific material can be selected based on the color requirements. The thickness can range from 1 nm to 10 μm. The electrochromic material layer changes under the action of an electric field, thereby causing the color and / or transmittance of the electrochromic material layer to change. The electrochromic material in the electrochromic device includes organic and / or inorganic materials, such as any one or a combination of at least two of NiO, WO3, Nb2O5, or TiO2; polythiophene derivatives and / or copolymers thereof; or metal conjugated systems such as Prussian blue.
[0028] The electrolyte layer is a transparent electron transfer material, which can be various transparent liquid electrolytes, gel electrolytes or solid electrolytes, etc., and has a thickness of 1-100 μm. It is used to provide a transmission channel for ions between the electrochromic material layers.
[0029] The ion storage layer overlies the first transparent conductive layer and is one or a combination of at least two oxides or complexes formed from metal elements in Groups IIIB, IVB, VB, VIB, VIIB, VIII, IB, or IIB that can store ions during electrochemical reactions. For example, it can be a single metal oxide, a combination of two or more metal oxides, a metal complex, a combination of two or more metal complexes, or a combination of a metal complex and a metal oxide. The thickness can range from 1 nm to 10 μm and it is used to store ions and balance charges.
[0030] Preferably, the electrochromic material layer in region A is made of different materials than the electrochromic material layer in region B. By selecting different electrochromic materials for regions A and B, the transmittance of the electrochromic material in region B is higher than that in region A when colored.
[0031] Preferably, the electrochromic material layer in region A and the electrochromic material layer in region B are made of the same material, and the thickness of the electrochromic material layer in region A is greater than the thickness of the electrochromic material layer in region B. Thus, when the electrochromic component is in a colored state, the transmittance of region A is lower than the transmittance of region B.
[0032] Preferably, the first transparent conductive layer in region A is separated from the first transparent conductive layer in region B, and the first transparent conductive layer in region A and the first transparent conductive layer in region B are independently led out through the first electrode; and / or the second transparent conductive layer in region A is separated from the second transparent conductive layer in region B, and the second transparent conductive layer in region A and the second transparent conductive layer in region B are independently led out through the second electrode. This allows the voltages in regions A and B to be controlled separately, so that the transmittance of the electrochromic component in region B is lower than that in region A.
[0033] Preferably, the first reflective component includes a first reflective layer, the second reflective component includes a second reflective layer, and the reflectivity of the second reflective layer is lower than that of the first reflective layer.
[0034] The present invention can achieve the effect of lower reflectivity of the second area in the base component than that of the first area by providing a first reflective layer and a second reflective layer with different reflectivities. In this case, the first reflective layer can be a total reflective layer and the second reflective layer can be a semi-transparent and semi-reflective layer. The semi-transparent and semi-reflective layer of the present invention has a transmittance range of 10% to 50%, for example, it can be 10%, 12%, 15%, 18%, 20%, 22%, 25%, 30%, 32%, 35%, 38%, 40%, 42%, 45%, 48% or 50%, and a reflectivity range of 90% to 50%, for example, it can be 90%, 88%, 85%, 80%, 78%, 75%, 72%, 70%, 65%, 60%, 55% or 50%, etc.
[0035] Preferably, the transmittance of the second reflective layer is higher than the transmittance of the first reflective layer.
[0036] The present invention further limits the transmittance of the second reflective layer to be higher, ensuring that when light passes through the basic component, the transmittance in the second area is higher than that in the first area, ensuring that the optical element can receive sufficient light or the light emitted by the optical element can be well emitted.
[0037] Preferably, the first reflective layer and the second reflective layer are disposed on the surface of the first substrate and are located on the same side or different sides of the first substrate, preferably on different sides of the first substrate.
[0038] The first reflective layer and the second reflective layer in the present invention can be arranged simultaneously on the side of the first substrate away from the ambient light incident surface, or can be arranged simultaneously on the side of the first substrate close to the ambient light incident surface, or can be arranged on different sides of the first substrate, both of which can achieve the solution of low reflectivity and high transmittance in the area corresponding to the optical element in the present invention.
[0039] Furthermore, the present invention arranges the first reflective layer and the second reflective layer on different sides of the first substrate, which can effectively avoid the connection problem between the first reflective layer and the second reflective layer during processing, making processing more convenient. At the same time, it can avoid the impact of poor connection between the first reflective layer and the second reflective layer on the overall visual effect of the reflector.
[0040] Preferably, the first reflective component includes a first reflective layer and a portion of the second reflective layer located in the first area, and the second reflective component includes a portion of the second reflective layer located in the second area.
[0041] In the present invention, a second reflective layer covering the first and second regions can be provided, and the first reflective layer can be provided partially in the first region. Since the second region is only provided with the second reflective layer, the light in the first region needs to pass through the first and second reflective layers in a superimposed manner, thereby achieving an effect in which the reflectivity of the second region is lower than that of the first region and the transmittance is higher. In this case, the first reflective layer can be a fully reflective layer or a semi-transparent and semi-reflective layer, and the second reflective layer is a semi-transparent and semi-reflective layer.
[0042] Preferably, the first reflective layer and the second reflective layer are disposed on the surface of the first substrate and are located on different sides of the first substrate.
[0043] In the above solution, the first reflective layer and the second reflective layer are arranged on different sides of the first substrate, which facilitates processing.
[0044] Preferably, the first reflective component includes a first reflective layer and a first light-shielding layer, and the second reflective component includes a second reflective layer.
[0045] The present invention can also set a first shading layer in the first area, so that the intensity of light passing through the second area is higher than the intensity of light in the first area. At this time, the first reflecting layer and the second reflecting layer can both be semi-transmissive and semi-reflective layers, and the reflectivity of the two can be equal or the reflectivity of the first reflecting layer can be higher than the reflectivity of the second reflecting layer. The setting of the first shading layer prevents light from passing through the first area, thereby improving the reflection effect, thereby achieving the effect of local high reflectivity and local high transmittance.
[0046] Preferably, the first light-shielding layer is located on a side of the first reflective layer away from an incident surface of ambient light.
[0047] The ambient light first passes through the first reflective layer and is then blocked by the first shading layer, which greatly increases the intensity of the reflected light. However, the second area is not provided with a shading layer and still has a high transmittance. The optical element can receive sufficient light or the light emitted by the optical element can be well emitted.
[0048] Preferably, the first reflective layer and the first light-shielding layer are located on the same side or different sides of the first substrate.
[0049] Preferably, the first reflective layer and the second reflective layer are located on the same side or different sides of the first substrate.
[0050] In the present invention, the positional relationship between the first reflective layer, the first light shielding layer, the second reflective layer and the first substrate is not particularly limited, as long as the first light shielding layer is located on the side of the first reflective layer away from the incident surface of ambient light.
[0051] Preferably, a third transition region is provided between the first region and the second region; the third transition region includes a third reflective component; and the reflectivity of the third reflective component gradually decreases from the first region toward the second region.
[0052] Preferably, the transmittance of the third reflective component gradually increases from the first area to the second area.
[0053] When the third transition region is not provided, the edge of the first reflective layer near the second region is perpendicular to the first substrate. When light is incident at an angle to the first substrate, it passes through the aforementioned edge of the first reflective layer, and a portion of the light is reflected by the first reflective layer and cannot illuminate the optical element. At this time, the amount of light received by the optical element is reduced, which may cause the optical element to fail to achieve the required light intensity. In this case, to ensure light intensity, the reflector structure needs to be improved accordingly. In the present invention, by providing a transition region with a gradually decreasing reflectivity from the first region to the second region, the overall transmittance of the corresponding region of the optical element is increased, thereby ensuring that when light is incident at an angle to the optical element, sufficient light can pass through the corresponding region of the optical element and then enter the optical element.
[0054] Preferably, the third reflective component includes a third reflective layer whose reflectivity gradually decreases from the first area to the second area.
[0055] The third reflective component described in the present invention can change the reflectivity of the third reflective layer through its thickness. From the first area to the second area, the reflectivity of the third reflective layer gradually decreases from a relatively high reflectivity to a lower reflectivity. Therefore, when light is incident at an angle relative to the first substrate, the light can be irradiated onto the third reflective layer. Since the reflectivity of the third reflective layer gradually decreases from the first area to the second area, the reflection of light in the third transition area is reduced, thereby increasing the overall transmittance of the corresponding area of the optical element, thereby meeting the light requirements of the optical element.
[0056] Preferably, the third reflective layer and the first reflective layer are an integral structure.
[0057] The third reflective layer in the present invention is preferably an integral structure with the first reflective layer, directly extending the first reflective layer in the third transition region, which is simple and convenient to process and can avoid the connection problem between the first reflective layer and the third reflective layer.
[0058] Preferably, the third reflective component includes a portion extending from the second reflective layer to the third transition region.
[0059] In the present invention, the second reflective layer can extend to the third transition region, avoiding the black non-reflective area around the second region when the user observes at an angle not perpendicular to the reflector, and further reducing the requirements for processing accuracy.
[0060] In the present invention, the second reflective layer may further extend into the first region, and there is no special limitation on its length.
[0061] The optical element in the present invention includes one or a combination of at least two optical elements selected from the group consisting of a display screen, a light source, a glare sensor, and an ambient light sensor. A typical non-limiting combination is a combination of a glare sensor and an ambient light sensor.
[0062] The reflector in the present invention can be combined with different optical elements to achieve different functions. For example, it can be combined with a display screen to achieve the display function of the rearview mirror, or further combined with a glare sensor and an ambient light sensor to improve the anti-glare effect of the rearview mirror.
[0063] The present invention has no limitation on the size of the optical element. Any size or dimension known to those skilled in the art may be used and may be selected as required.
[0064] In a second aspect, the present invention provides a rearview mirror, comprising the reflector described in the first aspect.
[0065] The rearview mirror provided in the second aspect of the present invention includes the reflector described in the first aspect, which can ensure that the driver can clearly observe the traffic conditions behind, and can further prevent strong light reflection from entering the driver's eyes and interfering with the driver, thereby improving driving safety.
[0066] Preferably, the rearview mirror includes an optical element, the optical element includes a photosensitive surface and / or a light-emitting surface, and the projection of the photosensitive surface and / or the light-emitting surface on the first substrate falls within a range of the second area.
[0067] Since the rearview mirror of the present invention has a locally high transmittance, it can be combined with various optical elements that have high requirements for light, thereby greatly expanding the application prospects of the rearview mirror.
[0068] Compared with the prior art, the present invention has at least the following beneficial effects:
[0069] (1) The reflector provided by the present invention is provided with a second reflective component, which also has a reflective effect, thereby reducing the visual difference between the second reflective component and the first reflective component, thereby ensuring the integration of the overall visual effect of the reflector;
[0070] (2) The second reflective component of the reflector provided by the present invention also has a local high transmittance, which can enable the optical element on the back of the rearview mirror to receive light of sufficient intensity or irradiate light of sufficient intensity from the optical element, expanding the possibility of combining the reflector with different optical elements, and has broad application prospects. BRIEF DESCRIPTION OF THE DRAWINGS
[0071] Figure 1 This is a schematic diagram of the reflector provided in Example 1-1 of the present invention.
[0072] Figure 2 This is a schematic diagram of the reflector provided in Example 1-2 of the present invention.
[0073] Figure 3 Schematic diagram of the reflector provided in Examples 1-3 of the present invention.
[0074] Figure 4 Schematic diagram of the reflector provided in Examples 1-4 of the present invention.
[0075] Figure 5 This is a schematic diagram of the reflector provided in Example 2-1 of the present invention.
[0076] Figure 6 This is a schematic diagram of the reflector provided in Example 2-2 of the present invention.
[0077] Figure 7 This is a schematic diagram of the reflector provided in Example 3-1 of the present invention.
[0078] Figure 8 This is a schematic diagram of the reflector provided in Example 3-2 of the present invention.
[0079] Figure 9 This is a schematic diagram of the reflector provided in Example 3-3 of the present invention.
[0080] Figure 10 This is a schematic diagram of the reflector provided in Example 4-1 of the present invention.
[0081] Figure 11 This is a schematic diagram of the reflector provided in Example 4-2 of the present invention.
[0082] Figure 12 This is a schematic diagram of the reflector provided in Example 4-3 of the present invention.
[0083] Figure 13 Schematic diagram of the reflector provided in Example 5 of the present invention.
[0084] Figure 14 This is a schematic diagram of the electrochromic component in the reflector provided in Example 5-1 of the present invention.
[0085] Figure 15 This is a schematic diagram of the reflector provided in Example 5-2 of the present invention.
[0086] Figure 16 This is a schematic diagram of the electrochromic component in the reflector provided in Example 5-2 of the present invention.
[0087] In the figure: 1-first substrate; 101-first region; 102-second region; 103-third transition region; 2011-first reflective layer; 2012-first light-shielding layer; 2021-second reflective layer; 2031-third reflective layer; 3-second substrate; 4-optical element; 5-electrochromic component; 501-A region; 502-B region; 51-first sub-substrate; 52-first transparent conductive layer; 53-ion storage layer; 54-electrolyte layer; 55-electrochromic material layer; 56-second transparent conductive layer; 57-second sub-substrate. DETAILED DESCRIPTION
[0088] The technical solution of the present invention will be further described below with reference to the accompanying drawings and through specific implementation methods.
[0089] The present invention is further described in detail below. However, the following examples are merely simplified examples of the present invention and do not represent or limit the scope of protection of the present invention. The scope of protection of the present invention shall be subject to the claims.
[0090] 1. Implementation
[0091] Example 1
[0092] This embodiment provides a reflector, comprising a base assembly; the base assembly comprising a first substrate 1; the first substrate 1 comprising a first region 101 and a second region 102; the first substrate 1 comprising a first reflective component disposed in the first region 101 and a second reflective component disposed in the second region 102; when the reflector is coupled with an optical element 4, a projection of a light-sensitive surface and / or a light-emitting surface of the optical element 4 on the first substrate 1 falls within the range of the second region 102;
[0093] The first reflective assembly includes a first reflective layer 2011, and the second reflective assembly includes a second reflective layer 2021. The reflectivity of the second reflective layer 2021 is lower than that of the first reflective layer 2011, and the transmittance of the second reflective layer 2021 is higher than that of the first reflective layer 2011. The first reflective layer 2011 and the second reflective layer 2021 are disposed on the surface of the first substrate 1, on the same side or different sides of the first substrate 1. Specifically, the embodiment includes different situations such as Example 1-1 to Example 1-4.
[0094] In Example 1, by respectively setting the first reflective layer 2011 and the second reflective layer 2021 with different reflectivities and transmittances in the first area 101 and the second area 102, the effects of local high reflectivity and local high transmittance are achieved, which can simultaneously meet the reflective visual effect of the reflector and the light requirements of the optical element.
[0095] Example 1-1
[0096] like Figure 1 As shown, the first reflective layer 2011 has a reflectivity greater than 90% and is made of a common commercially available reflective mirror material. The second reflective layer 2021 is a semi-transparent and semi-reflective layer, with a reflectivity of 50% to 90% and a transmittance of 10% to 50%. The semi-transparent and semi-reflective layer can specifically be a multilayer film structure composed of a high-refractive index material and a low-refractive index material that are alternately overlapped. The high-refractive index material can be selected from NbOx, TiOx, Zr2O5, HfOx, etc., and the low-refractive index material can be selected from SiO2, Al2O3, MgF2, etc. It should be noted that those skilled in the art can adjust the thickness and number of layers of the high-refractive index material and the low-refractive index material of the second reflective layer according to specific product requirements to obtain the required reflectivity and transmittance. The first reflective layer 2011 and the second reflective layer 2021 are located on the same side of the first substrate 1 and are both located on the side close to the optical element 4.
[0097] In this embodiment 1-1, external light enters the first substrate 1 and then enters the first reflective layer 2011 or the second reflective layer 2021. Since the first reflective layer 2011 is a total reflective layer, it reflects most of the light in the first area 101, achieving a high local reflectivity effect, allowing the driver to observe the situation behind the vehicle; the second reflective layer 2021 has a transmittance of 10% to 50% and a reflectivity of 50% to 90%, which can allow part of the light entering the second area 102 to pass through and enter the optical element, thereby meeting the optical element's light requirements.
[0098] This embodiment is also applicable to situations where the optical element needs to emit light. When the optical element 4 needs to emit light, the light emitted by the optical element 4 enters the second reflective layer 2021, which has a high transmittance, so that sufficient light enters the first substrate 1 and is emitted through the first substrate 1. The sum of the transmittance and reflectance of the semi-transmissive and semi-reflective layer in this embodiment is close to 100%, with no absorption and no light loss.
[0099] Example 1-2
[0100] like Figure 2 As shown, the first reflective layer 2011 and the second reflective layer 2021 are both located outside the side away from the optical element 4, and the rest are the same as in Example 1-1.
[0101] In this embodiment 1-2, external light first passes through the first reflective layer 2011 or the second reflective layer 2021. At this time, since the first reflective layer 2011 is a total reflective layer, almost no light in the first area 101 enters the first substrate 1, forming an effect of high local reflectivity in the first area 101; some light in the second area 102 can pass through the second reflective layer 2021 and then through the first substrate 1 before being received by the optical element.
[0102] This embodiment is also applicable to the case where the optical element needs to emit light. When the optical element 4 needs to emit light, the light emitted by the optical element 4 passes through the first substrate 1 and enters the second reflective layer 2021 , and then is emitted from the second reflective layer 2021 .
[0103] Examples 1-3
[0104] like Figure 3 As shown, the first reflective layer 2011 and the second reflective layer 2021 are located on different sides of the first substrate 1, wherein the first reflective layer 2011 is located on the side of the first substrate 1 close to the optical element 4, and the second reflective layer 2021 is located on the side of the first substrate 1 away from the optical element 4, and the rest are the same as Example 1-1.
[0105] In the present embodiments 1-3, the light incident on the first area 101 first passes through the first substrate 1 and then enters the first reflective layer 2011, and is reflected by the first reflective layer 2011, which is a total reflective layer, to form a local high-reflection effect; the light incident on the second area 102 first passes through the second reflective layer 2021, and 10% to 50% of the light passes through the first substrate 1 and is then received by the optical element 4, meeting the light requirements of the optical element.
[0106] This embodiment is also applicable to the case where the optical element needs to emit light. When the optical element 4 needs to emit light, the light emitted by the optical element 4 enters the second reflective layer 2021 through the first substrate 1, and most of the light is then emitted from the second reflective layer 2021.
[0107] Examples 1-4
[0108] like Figure 4 As shown, the first reflective layer 2011 and the second reflective layer 2021 are located on different sides of the first substrate 1, wherein the first reflective layer 2011 is located on the side of the first substrate 1 away from the optical element 4, and the second reflective layer 2021 is located on the side of the first substrate 1 close to the optical element 4, and the rest are the same as Example 1-1.
[0109] In the present embodiments 1-4, the light incident on the first area 101 is reflected by the first reflective layer 2011 which is a total reflective layer, forming a local high reflective effect; the light incident on the second area 102 first passes through the first substrate 1 and then passes through the second reflective layer 2021 which is a semi-transmissive and semi-reflective layer, among which 10% to 50% of the light passes through the second reflective layer 2021 and is then received by the optical element 4. The overall reflector not only has a local high reflectivity but also enables the optical element to receive sufficient light.
[0110] This embodiment is also applicable to situations where the optical element needs to emit light. When the optical element 4 needs to emit light, the light emitted by the optical element 4 first enters the second reflective layer 2021, and part of the light passes through the second reflective layer 2021 and enters the first substrate 1 and is emitted through the first substrate 1, thereby meeting the optical element's need to emit light.
[0111] Example 2
[0112] This embodiment provides a reflector, comprising a base assembly; the base assembly comprising a first substrate 1; the first substrate 1 comprising a first region 101 and a second region 102; the first substrate 1 comprising a first reflective component disposed in the first region 101 and a second reflective component disposed in the second region 102; when the reflector is coupled with an optical element 4, a projection of a light-sensitive surface and / or a light-emitting surface of the optical element 4 on the first substrate 1 falls within the range of the second region 102;
[0113] The first reflective assembly includes a first reflective layer 2011 and a portion of a second reflective layer 2021 located in the first region 101. The second reflective assembly includes a portion of the second reflective layer 2021 located in the second region 102. The first reflective layer 2011 and the second reflective layer 2021 are located on the same side or different sides of the first substrate 1. Specifically, this includes different situations such as Example 2-1 and Example 2-2.
[0114] In Example 2, ambient light in the first region 101 can first pass through the first reflective layer 2011 or the second reflective layer 2021, with no particular limitation. When the first reflective layer 2011 is a total reflective layer, light will be completely reflected by the first reflective layer 2011 upon striking the first reflective layer 2011, achieving a locally high reflective effect. When the first reflective layer 2011 is a semi-transmissive and semi-reflective layer, its superposition with the second reflective layer 2021 increases the overall reflectivity of the first region 101, resulting in a locally high reflectivity effect higher than that of the second region 102. However, the second region 102 is provided with only the second reflective layer 2021. Light in the second region 102 can pass through the second reflective layer 2021 and enter the optical element or be emitted from the optical element 4, resulting in a locally high transmittance.
[0115] Example 2-1
[0116] like Figure 5As shown, the reflector includes a first reflective layer 2011, a second reflective layer 2021 and a first substrate 1 in sequence; the first reflective layer 2011 is only provided in the first region 101, the reflectivity of the first reflective layer 2011 is greater than 90%, and a common reflective mirror material on the market is used; the second reflective layer 2021 includes a portion located in the first region 101 and a portion located in the second region 102; the first reflective layer 2011 and the second reflective layer 2021 are located on the side of the first substrate 1 away from the optical element 4; the second reflective layer 2021 is a semi-transmissive and semi-reflective layer, and the second reflective layer 2021 The reflectivity is 50% to 90%, and the transmittance is 10% to 50%; the semi-transparent and semi-reflective layer can be a multi-layer film structure composed of high-refractive index materials and low-refractive index materials alternately overlapped, wherein the high-refractive index material can be selected from NbOx, TiOx, Zr2O5, HfOx, etc., and the low-refractive index material can be selected from SiO2, Al2O3, MgF2, etc. It should be noted that those skilled in the art can adjust the thickness and number of layers of the high-refractive index material and low-refractive index material of the second reflective layer according to specific product requirements, so as to obtain the required reflectivity and transmittance.
[0117] In this embodiment, light in the first region 101 passes through the first reflective layer 2011, the second reflective layer 2021, and the first substrate 1 in sequence. Since the combination of the first reflective layer 2011 and the second reflective layer 2021 has a high reflectivity, a technical effect of local high reflection is achieved. Light in the second region 102 passes through the second reflective layer 2021 and the first substrate 1 in sequence and is received by the optical element 4. Since light only needs to pass through the semi-transparent and semi-reflective second reflective layer 2021, it has a high transmittance locally.
[0118] This embodiment is also applicable to situations where the optical element needs to emit light. When the optical element 4 needs to emit light, the light emitted by the optical element 4 first enters the first substrate 1, passes through the first substrate 1 and enters the second reflective layer 2021. 10% to 50% of the light is transmitted through the second reflective layer 2021 and emitted, thus meeting the optical element's light emission requirements. The sum of the transmittance and reflectance of the translucent and semi-reflective layers in this embodiment is close to 100%, with no absorption and no light loss.
[0119] Example 2-2
[0120] like Figure 6As shown, the reflector includes a first reflective layer 2011, a first substrate 1 and a second reflective layer 2021 in sequence; the first reflective layer 2011 is only arranged in the first area 101, and the second reflective layer 2021 includes a portion located in the first area 101 and a portion in the second area 102; the first reflective layer 2011 is located on the side of the first substrate 1 away from the optical element 4, and the second reflective layer 2021 is located on the side of the first substrate 1 close to the optical element 4, and the rest is the same as Example 2-1.
[0121] In this embodiment, light in the first region 101 passes through the first reflective layer 2011, the first substrate 1, and the second reflective layer 2021 in sequence. Although the first reflective layer 2011 and the second reflective layer 2021 are arranged on both sides of the first substrate 1, the light still produces a combined reflection effect when passing through in sequence, so that the local reflectivity of the first region 101 is high. Light in the second region 102 passes through the first substrate 1 and the second reflective layer 2021 in sequence and is received by the optical element 4. Since the light passes through only the second reflective layer 2021, the local transmittance is high, which can meet the light requirements of the optical element 4.
[0122] This embodiment is also applicable to situations where the optical element needs to emit light. When the optical element 4 needs to emit light, the light emitted by the optical element 4 first enters the second reflective layer 2021, of which 10% to 50% of the light is emitted through the second reflective layer 2021 and emitted through the first substrate 1, thereby meeting the optical element's need to emit light.
[0123] Example 3
[0124] This embodiment provides a reflector, comprising a base assembly; the base assembly comprising a first substrate 1; the first substrate 1 comprising a first region 101 and a second region 102; the first substrate 1 comprising a first reflective component disposed in the first region 101 and a second reflective component disposed in the second region 102; when the reflector is coupled with an optical element 4, a projection of a light-sensitive surface and / or a light-emitting surface of the optical element 4 on the first substrate 1 falls within the range of the second region 102;
[0125] The first reflective assembly includes a first reflective layer 2011 and a first light-shielding layer 2012, and the second reflective assembly includes a second reflective layer 2021. The first reflective layer 2011 and the first light-shielding layer 2012 are located on the same side or different sides of the first substrate 1. The first reflective layer 2011 and the second reflective layer 2021 are located on the same side or different sides of the first substrate 1. Specifically, this includes different situations such as Example 3-1 to Example 3-3.
[0126] In Example 3, a first reflective layer 2011 and a first light-shielding layer 2012 are provided in the first region 101, while only a second reflective layer 2021 is provided in the second region 102. In this case, the reflectivities of the first reflective layer 2011 and the second reflective layer 2021 can be the same or different. When external light enters the first region 101, the light cannot continue to propagate due to the presence of the first light-shielding layer 2012, which greatly increases the intensity of the reflected light and improves the reflection effect of the first region 101. When the light enters the second region 102, it passes through the second reflective layer 2021 and is received by the optical element 4 or emitted from the optical element 4, achieving the effect of local high transmittance.
[0127] Example 3-1
[0128] like Figure 7 As shown, the reflector includes a first reflective layer 2011, a first substrate 1, and a second reflective layer 2021 in sequence. The first reflective layer 2011 is located on the side of the first substrate 1 away from the optical element 4, and the second reflective layer 2021 is located on the side of the first substrate 1 close to the optical element 4. A first light-shielding layer 2012 is provided on the side of the surface of the first substrate 1 close to the optical element 4 in the first region 101. The first reflective layer 2011 and the second reflective layer 2021 are both semi-transparent and semi-reflective layers. The transmittance of the semi-transparent and semi-reflective layers is 10% to 50%. The reflectivity is 50% to 90%, and the semi-transparent and semi-reflective layer can be a multi-layer film structure composed of high-refractive index materials and low-refractive index materials alternately overlapped, wherein the high-refractive index material can be selected from NbOx, TiOx, Zr2O5, HfOx, etc., and the low-refractive index material can be selected from SiO2, Al2O3, MgF2, etc. It should be noted that those skilled in the art can adjust the thickness and number of layers of the high-refractive index material and low-refractive index material of the second reflective layer according to specific product requirements, so as to obtain the required reflectivity and transmittance.
[0129] In this embodiment, when external light enters the first area 101, it first passes through the first reflective layer 2011 and then through the first substrate 1. After encountering the first light-shielding layer 2012, the light cannot continue to propagate. The energy of the reflected light is greatly increased, achieving a local high reflection effect. However, no light-shielding layer is provided in the second area 102. Therefore, the light in the second area 102 can pass through the second reflective layer 2021 and be received by the optical element.
[0130] This embodiment is also applicable to the situation where the optical element needs to emit light. When the optical element 4 needs to emit light, the light emitted by the optical element 4 first enters the second reflective layer 2021, and part of the light passes through the second reflective layer 2021 and enters the first substrate 1, and is emitted through the first substrate 1, thereby meeting the optical element's need to emit light.
[0131] The semi-reflective and semi-transmissive layer used in this embodiment has a simple structure and low cost, and its transmittance and reflectivity can meet the requirements of the optical element for emitting and / or receiving light.
[0132] Example 3-2
[0133] like Figure 8 As shown, the reflector includes a first reflective layer 2011, a first light-shielding layer 2012, a first substrate 1, and a second reflective layer 2021 in sequence. The first reflective layer 2011 and the first light-shielding layer 2012 are arranged in the first area 101, and the second reflective layer 2021 is arranged in the second area 102. The first reflective layer 2011 and the first light-shielding layer 2012 are located on the side of the first substrate 1 away from the optical element 4, and the second reflective layer 2021 is located on the side of the first substrate 1 close to the optical element 4. The first reflective layer 2011 and the second reflective layer 2021 are both semi-transmissive and semi-reflective layers. The transmittance of the semi-transparent and semi-reflective layer is 10% to 50%, and the reflectivity is 50% to 90%. The semi-transparent and semi-reflective layer can be a multi-layer film structure composed of high-refractive index materials and low-refractive index materials alternately overlapped, wherein the high-refractive index material can be selected from NbOx, TiOx, Zr2O5, HfOx, etc., and the low-refractive index material can be selected from SiO2, Al2O3, MgF2, etc. It should be noted that those skilled in the art can adjust the thickness and number of layers of the high-refractive index material and low-refractive index material of the second reflective layer according to specific product requirements, so as to obtain the required reflectivity and transmittance.
[0134] In this embodiment, when external light enters the first area 101, it first passes through the first reflective layer 2011. After encountering the first light-shielding layer 2012, the light cannot propagate. The energy of the reflected light is greatly increased, achieving a local high reflection effect. However, no light-shielding layer is provided in the second area 102. The external light passes through the first substrate 1 and the second reflective layer 2021 in sequence. 10% to 50% of the light can pass through the second reflective layer 2021 and be received by the optical element.
[0135] This embodiment is also applicable to situations where the optical element needs to emit light. When the optical element 4 needs to emit light, the light emitted by the optical element 4 first enters the second reflective layer 2021, of which 10% to 50% of the light passes through the second reflective layer 2021 and enters the first substrate 1, and is emitted through the first substrate 1, thereby meeting the optical element's need to emit light.
[0136] Example 3-3
[0137] like Figure 9As shown, the reflector includes a second reflective layer 2021, a first substrate 1, a first reflective layer 2011 and a first shading layer 2012 in sequence. The first reflective layer 2011 and the first shading layer 2012 are located on the side of the first substrate 1 close to the optical element 4, and the second reflective layer 2021 is located on the side of the first substrate 1 away from the optical element 4. The rest are the same as Example 3-2.
[0138] In this embodiment, when external light enters the first area 101, it first passes through the first substrate 1 and enters the first reflective layer 2011. After encountering the first light-shielding layer 2012, the light cannot propagate, and the energy of the reflected light is greatly increased, achieving a local high reflection effect. However, no light-shielding layer is provided in the second area 102. The external light passes through the second reflective layer 2021 and the first substrate 1 in sequence, and 10% to 50% of the light can pass through the second reflective layer 2021 and be received by the optical element.
[0139] This embodiment is also applicable to situations where the optical element needs to emit light. When the optical element 4 needs to emit light, the light emitted by the optical element 4 first enters the first substrate 1, and then passes through the first substrate 1 and enters the second reflective layer 2021. Since the second reflective layer 2021 has a high transmittance and no light-shielding layer is provided in the second region 102, the light can be emitted, thereby meeting the optical element's need to emit light.
[0140] The high reflective layer in Examples 1 to 3 can be made of common reflective mirror materials on the market, and the thickness, number of layers and composition can be adjusted according to actual conditions and needs.
[0141] The semi-transmissive and semi-reflective layers in Examples 1 to 3 may also be made of other materials, such as other multi-layer oxide structures. The specific composition of each layer of material may be different, and the thickness and number of layers may also be adjusted according to actual conditions and needs.
[0142] Example 4
[0143] This embodiment provides a reflector, comprising a base assembly; the base assembly comprising a first substrate 1; the first substrate 1 comprising a first region 101 and a second region 102; the first substrate 1 comprising a first reflective component disposed in the first region 101 and a second reflective component disposed in the second region 102; when the reflector is coupled with an optical element 4, the projection of the light-sensitive surface and / or light-emitting surface of the optical element 4 on the first substrate 1 falls within the range of the second region 102; and the reflectivity of the second reflective component is lower than that of the first reflective component. For implementation of the reflectivity of the first and second reflective components, see Examples 1 to 3.
[0144] A third transition region 103 is provided between the first region 101 and the second region 102. The third transition region 103 includes a third reflective component. The reflectivity of the third reflective component gradually decreases from the first region 101 to the second region 102. The implementation thereof includes embodiments 4-1 to 4-3.
[0145] This embodiment improves upon Embodiments 1-3 and is applicable not only to situations where light enters perpendicularly, but also to situations where light enters at an angle relative to the first substrate 1. When light enters at an angle, some of it will be reflected by the edges of the first reflective layer 2011, reducing the amount of light received or emitted by the optical element. This embodiment, by providing a transition region 103, gradually reduces the reflectivity from the first region 101 toward the second region 102, thereby increasing the overall transmittance of the corresponding region of the optical element and meeting the optical element's light reception requirements. This also prevents users from seeing a black, non-reflective area around the second region 102 when viewing from an angle non-perpendicular to the reflector. Furthermore, it further reduces the processing precision requirements for the first reflective layer 2011.
[0146] Example 4-1
[0147] like Figure 10 As shown, the third reflective component includes a third reflective layer 2031 whose thickness gradually decreases from the first region 101 to the second region 102. The third reflective component also includes a portion extending from the second reflective layer 2021 to the third transition region 103. The portion of the second reflective layer 2021 extending to the third transition region 103 is a reflective layer with uniform thickness. The third reflective layer 2031 is arranged on the surface of the first substrate 1, on the side close to the optical element.
[0148] This embodiment is applicable to situations where light is incident vertically, as well as obliquely. When external light is incident obliquely on the third transition region 103, it first passes through the portion of the second reflective layer 2021 that extends to the third transition region 103 before entering the first substrate 1. Due to the presence of the third reflective layer 2031, the closer the light is to the second region 102, the less light is reflected, and the more light passes through the third reflective layer 2031 and ultimately enters the optical element 4. This increases the amount of light received by the optical element 4 under oblique incident conditions. This also prevents users from seeing a black, non-reflective area around the second region 102 when viewing from an angle not perpendicular to the reflector, and further reduces the processing precision requirements for the first reflective layer 2011.
[0149] Example 4-2
[0150] like Figure 11As shown, the third reflective component includes a third reflective layer 2031 whose thickness gradually decreases from the first region 101 to the second region 102. The third reflective component also includes a portion extending from the second reflective layer 2021 to the third transition region 103. The portion of the second reflective layer 2021 located in the third transition region 103 is a reflective layer with uniform thickness. The third reflective layer 2031 and the first reflective layer 2011 are an integral structure. The third reflective layer 2031 is arranged on the surface of the first substrate 1, on the side away from the optical element.
[0151] This embodiment is applicable to situations where light is incident vertically, and is also applicable to situations where light is incident obliquely. When external light is incident obliquely on the third transition region 103, the light first enters the third reflective layer 2031, then enters the first substrate 1, and then passes through the second reflective layer 2021 to the portion of the third transition region 103 before being received by the optical element. Because the reflectivity of the third reflective layer 2031 gradually decreases and the transmittance gradually increases from the first region 101 to the second region 102, the closer to the second region 102, the less light is reflected, and the more light is transmitted through the third reflective layer 2031 and ultimately enters the optical element 4, thereby increasing the amount of light received by the optical element 4 in situations where light is incident obliquely.
[0152] In this embodiment, the third reflective layer 2031 and the first reflective layer 2011 are integrally structured. Specifically, the thickness of the first reflective layer 2011 is designed to gradually decrease in thickness at one end, forming an integrated reflective layer. This avoids connection issues between the first reflective layer 2011 and the third reflective layer 2031. Furthermore, this prevents a user from seeing a black, non-reflective area around the second region 102 when viewing the device at an angle that is not perpendicular to the reflector.
[0153] Example 4-3
[0154] like Figure 12 As shown, the third reflective component includes a third reflective layer 2031 whose thickness gradually decreases from the first region 101 to the second region 102, and the third reflective layer 2031 and the first reflective layer 2011 are an integral structure; the third reflective component also includes a portion extending from the second reflective layer 2021 to the third transition region 103, and the portion of the second reflective layer 2021 extending to the third transition region 103 is a reflective layer of uniform thickness. The second reflective layer 2021 extends into the first region 101, and its length is not particularly limited. The third reflective layer 2031 is arranged on the surface of the first substrate 1, on the side away from the optical element.
[0155] This embodiment is applicable to situations where light is incident vertically, and is also applicable to situations where light is incident obliquely. When external light is incident obliquely into the third transition region 103, the light first enters the third reflective layer 2031, then enters the first substrate 1, and then passes through the second reflective layer 2021 to the portion of the third transition region 103 before being received by the optical element. Because the reflectivity of the third reflective layer 2031 gradually decreases and the transmittance gradually increases from the first region 101 to the second region 102, the closer to the second region 102, the less light is reflected, and the more light is transmitted through the third reflective layer 2031 and ultimately enters the optical element 4, thereby increasing the amount of light received by the optical element 4 in situations where light is incident obliquely.
[0156] In this case, the second reflective layer 2021 can extend into the first region 101. There is no specific limit to its length. This extension does not affect the entry of light into the optical element. In combination with the first reflective layer 2011, it can increase the reflectivity of the first region 101, achieving a locally high reflectivity effect. Furthermore, it can also prevent the user from seeing a black, non-reflective area around the second region 102 when observing from an angle non-perpendicular to the reflector.
[0157] In other embodiments of the present invention, the third reflective component in Example 4 may also have a uniform rather than gradient thickness, and the reflectivity of the third reflective component may gradually decrease from the first area 101 to the second area 102 by adjusting the material type and proportion of the coating in the third reflective component.
[0158] Example 5
[0159] This embodiment provides a reflector, such as Figure 13 As shown, the reflector includes a base assembly; the base assembly includes a first substrate 1; the first substrate 1 includes a first region 101 and a second region 102; the first substrate 1 includes a first reflective component disposed in the first region 101 and a second reflective component disposed in the second region 102; when the reflector is coupled with an optical element 4, the projection of the light-sensitive surface and / or light-emitting surface of the optical element 4 on the first substrate 1 falls within the range of the second region 102; the reflectivity of the second reflective component is lower than that of the first reflective component; and the transmittance of the second reflective component is higher than that of the first reflective component. The implementation of the reflectivity of the first and second reflective components is described in Examples 1 to 4.
[0160] An electrochromic component 5 and a second substrate 3 are sequentially arranged on the side of the base component away from the optical element 4; the base component and the second substrate 3 are respectively connected to the electrochromic component 5 through an adhesive layer (not shown), and the electrochromic component 5 includes multiple implementation methods such as Example 5-1 and Example 5-2.
[0161] This embodiment is applicable to terminal products with anti-glare function. By arranging the electrochromic component 5 on the side of the base component away from the optical element, when the electrochromic component is adjusted to the colored state, the intensity of the reflected light can be adjusted to achieve the anti-glare effect.
[0162] Example 5-1
[0163] like Figure 14 As shown, the electrochromic component 5 sequentially comprises a first sub-base 51, a first transparent conductive layer 52, an ion storage layer 53, an electrolyte layer 54, an electrochromic material layer 55, a second transparent conductive layer 56, and a second sub-base 57. The first sub-base 51 and the second sub-base 57 are made of PET films.
[0164] In this embodiment, when the electrochromic component 5 is adjusted to the colored state, the intensity of the ambient light after passing through the electrochromic component 5 can be reduced, thereby reducing the intensity of the light reflected by the first substrate, thereby achieving an anti-glare effect.
[0165] Example 5-2
[0166] like Figure 15 As shown, the electrochromic component 5 is provided with an A region 501 and a B region 502 corresponding to the first region 101 and the second region 102 in the first substrate 1, respectively. When the electrochromic component is adjusted to a colored state, the light transmittance of the A region 501 can be adjusted to a state lower than the transmittance of the B region 502.
[0167] Specifically, such as Figure 16 As shown, the electrochromic component 5 includes a first sub-base 51, a first transparent conductive layer 52, an ion storage layer 53, an electrolyte layer 54, an electrochromic material layer 55, a second transparent conductive layer 56 and a second sub-base 57 in sequence. The first transparent conductive layer 52 is led out through at least one first electrode (not shown in the drawings), and the second transparent conductive layer 52 is led out through at least one second electrode (not shown in the drawings); the first sub-base 51 and the second sub-base 57 are made of PET film; the electrochromic material layer 55 is provided with an A region 501 and a B region 502 corresponding to the first region 101 and the second region 102 in the first substrate 1, respectively. When the electrochromic component is adjusted to a colored state, the light transmittance of the A region 501 can be adjusted to a state lower than the transmittance of the B region 502. Specific implementation methods include the following methods:
[0168] (1) Area A 501 and area B 502 are made of materials with different transmittances. When the rearview mirror activates the anti-glare function, the transmittance of area B 502 is higher than that of area A 501.
[0169] (2) The thickness of the electrochromic material layer in region A 501 and region B 502 is different, and the thickness of the electrochromic material in region A 501 is controlled to be greater than the thickness of the electrochromic material in region B 502;
[0170] (3) The first transparent conductive layer 52 of the A region 501 is separated from the first transparent conductive layer 52 of the B region 502, and the first transparent conductive layer 52 of the A region 501 and the first transparent conductive layer 52 of the B region 502 are independently led out through the first electrode; and / or the second transparent conductive layer 56 of the A region 501 and the second transparent conductive layer 56 of the B region 502 are separated from the second transparent conductive layer 56 of the A region 501 and the second transparent conductive layer 56 of the B region 502 are independently led out through the second electrode. The voltages of the A region 501 and the B region 502 are independently controlled, so that the light transmittance of the A region 501 is lower than the transmittance of the B region 502.
[0171] This embodiment is suitable for terminal products that focus on anti-glare. By arranging an electrochromic component 5 on the side of the basic component away from the optical element, when the electrochromic component is adjusted to the colored state, the intensity of the reflected light can be adjusted to achieve an anti-glare effect. The technical effect of higher transmittance in the area corresponding to the optical element is achieved through one of the above-mentioned methods or a combination of at least two of them.
[0172] Example 6
[0173] This embodiment provides a rearview mirror, which includes a second substrate 3 and a reflector, and an optical element 4 arranged on one side of the reflector away from the second substrate 3, wherein the optical element 4 includes a photosensitive surface and / or a light-emitting surface, and the projection of the photosensitive surface and / or the light-emitting surface on the first substrate 3 falls within the range of the second area 102.
[0174] The reflecting mirror refers to Examples 1 to 5.
[0175] The second substrate 3 is an outer glass layer, and the optical element 4 includes any one optical element selected from the group consisting of a display screen, a light source, a glare sensor, an ambient light sensor, etc., or a combination of at least two optical elements.
[0176] The rearview mirror provided in this embodiment uses a reflector with local high transmittance and local high reflectivity, which can simultaneously meet the reflection effect of the rearview mirror, ensuring that the driver can clearly observe the traffic conditions behind, and can also meet the local high transmittance, so that the optical element arranged behind the reflector can receive or emit sufficient light, expanding the application possibilities of optical elements in the rearview mirror.
[0177] To sum up, the reflector provided by the present invention can simultaneously meet the requirements of local transmittance meeting the requirements of optical elements and local high reflectivity by setting a second reflective component in which the reflectivity of the area corresponding to the optical element is lower than that of other areas. Applying it in a rearview mirror not only does not affect the effect of visual integration, improves driving safety, but also can further expand the application prospects of the rearview mirror.
[0178] The applicant declares that the present invention is intended to illustrate the detailed structural features of the present invention through the above-described embodiments, but the present invention is not limited to the above-described detailed structural features. This does not mean that the present invention must rely on the above-described detailed structural features in order to be implemented. Those skilled in the art should understand that any improvements to the present invention, equivalent replacements for selected components, additions of auxiliary components, and selection of specific embodiments, etc., fall within the scope of protection and disclosure of the present invention.
Claims
1. A rearview mirror, characterized in that: The rearview mirror includes a reflector and an optical element, the optical element includes a photosensitive surface and / or a light-emitting surface, and the reflector includes a basic component; The foundation assembly includes a first substrate; The first substrate includes a first region and a second region; The base assembly includes a first reflective assembly disposed in the first area and a second reflective assembly disposed in the second area; The reflectivity of the second reflective component is lower than the reflectivity of the first reflective component; An electrochromic component is provided on the ambient light incident surface of the base component; The electrochromic component includes an A region and a B region, wherein the projection of the A region on the first substrate at least partially falls within the range of the first region, and the projection of the B region on the first substrate falls within the range of the second region; When the electrochromic component is adjusted to a colored state, the transmittance of the B region can be adjusted to a state higher than the transmittance of the A region; The first reflective component includes a first reflective layer, and the second reflective component includes a second reflective layer, the reflectivity of the second reflective layer is lower than that of the first reflective layer, and the reflectivity of the first reflective layer is greater than 90%; when the reflector is combined with the optical element, the projection of the photosensitive surface and / or light-emitting surface of the optical element on the first substrate falls within the range of the second area.
2. The rearview mirror according to claim 1, characterized in that The transmittance of the second reflective component is higher than the transmittance of the first reflective component.
3. The rearview mirror according to claim 2, characterized in that A second substrate is provided on a side of the electrochromic component away from the base component, and the base component and the second substrate are respectively connected to the electrochromic component via an adhesive layer.
4. The rearview mirror according to claim 1, characterized in that In a direction perpendicular to the first substrate, the electrochromic component includes a first sub-substrate, a first transparent conductive layer, an ion storage layer, an electrolyte layer, an electrochromic material layer, a second transparent conductive layer and a second sub-substrate stacked in sequence, the first transparent conductive layer is led out through at least one first electrode, and the second transparent conductive layer is led out through at least one second electrode.
5. The rearview mirror according to claim 4, characterized in that: The electrochromic material layer in the A region and the electrochromic material layer in the B region are made of different materials.
6. The rearview mirror according to claim 4, characterized in that The electrochromic material layer in the A region and the electrochromic material layer in the B region are made of the same material type, and the thickness of the electrochromic material layer in the A region is greater than that of the electrochromic material layer in the B region.
7. The rearview mirror according to claim 4, characterized in that: The first transparent conductive layer in region A is separated from the first transparent conductive layer in region B, and the first transparent conductive layer in region A and the first transparent conductive layer in region B are independently led out through the first electrode; and / or the second transparent conductive layer in region A and the second transparent conductive layer in region B are separated, and the second transparent conductive layer in region A and the second transparent conductive layer in region B are independently led out through the second electrode.
8. The rearview mirror according to claim 1, wherein: The transmittance of the second reflective layer is higher than the transmittance of the first reflective layer.
9. The rearview mirror according to claim 1, wherein: The first reflective layer and the second reflective layer are disposed on the surface of the first substrate and are located on different sides of the first substrate.
10. The rearview mirror according to claim 1, wherein: The first reflective component includes a first reflective layer and a portion of a second reflective layer located in a first area, and the second reflective component includes a portion of the second reflective layer located in a second area.
11. The rearview mirror according to claim 1, wherein: The first reflective component includes a first reflective layer and a first light-shielding layer, and the second reflective component includes a second reflective layer.
12. The rearview mirror according to claim 11, characterized in that The first light shielding layer is located on a side of the first reflective layer away from the incident surface of ambient light.
13. The rearview mirror according to claim 11, characterized in that The first reflective layer and the first light-shielding layer are located on the same side or different sides of the first substrate.
14. The rearview mirror according to claim 11, wherein: The first reflective layer and the second reflective layer are located on the same side or different sides of the first substrate.
15. The rearview mirror according to claim 1, wherein: A third transition area is provided between the first area and the second area; The third transition region includes a third reflective component; The reflectivity of the third reflective component gradually decreases from the first area to the second area.
16. The rearview mirror according to claim 15, characterized in that The transmittance of the third reflective component gradually increases from the first area to the second area.
17. The rearview mirror according to claim 15, characterized in that The third reflective component includes a third reflective layer whose reflectivity gradually decreases from the first area to the second area.
18. The rearview mirror according to claim 15, characterized in that The third reflective component includes a third reflective layer whose thickness gradually decreases from the first area to the second area.
19. The rearview mirror according to claim 17, wherein: The third reflective layer and the first reflective layer are an integrated structure.
20. The rearview mirror according to claim 16, wherein: The third reflective component includes a portion extending from the second reflective layer to a third transition region.
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