rearview mirror assembly

Abstract

A rearview mirror assembly includes a housing having an adjustable light-reflecting element and a glare sensor assembly. The glare sensor assembly includes a circuit board housed within the housing; a light sensor communicating with the circuit board; and a main optics unit adjacent to and communicating with the light sensor. The main optics unit is a substantially homogeneous cured epoxy resin having an infrared-blocking dye with a green tint, the substantially homogeneous cured epoxy resin at least partially blocking infrared light from exposure to the light sensor. An auxiliary optics unit is configured to receive light and direct the light to the main optics unit. The main optics unit is disposed between the circuit board and the auxiliary optics unit.

Description

Technical Field

[0001] This disclosure generally relates to rearview mirror assemblies, and more specifically, to rearview mirror assemblies having a glare sensor assembly that is not reachable by infrared light. Background Technology

[0002] There are known rearview mirror assemblies in the prior art. However, developing improved rearview mirror assemblies has always been a goal in this field. Summary of the Invention

[0003] According to one aspect of this disclosure, a rearview mirror assembly includes a housing having an adjustable light-reflecting element and a glare sensor assembly. The glare sensor assembly includes a circuit board disposed within the housing; a light sensor communicating with the circuit board; and a main optics element proximate to and communicating with the light sensor. The main optics element is a substantially uniform cured epoxy resin having an infrared-blocking dye with a green tint, the substantially uniform cured epoxy resin at least partially blocking infrared light from exposure to the light sensor. An auxiliary optics element is configured to receive light and direct the light to the main optics element. The main optics element is disposed between the circuit board and the auxiliary optics element.

[0004] According to a second aspect of this disclosure, a rearview mirror assembly includes a housing having an adjustable light-reflecting element and a glare sensor assembly. The glare sensor assembly includes a circuit board disposed within the housing; a light sensor communicating with the circuit board; and a main optics element proximate to and communicating with the light sensor. The main optics element is a substantially homogeneous cured epoxy resin that at least partially blocks infrared light from exposure to the light sensor. An auxiliary optics element is configured to receive light and direct the light to the main optics element.

[0005] According to another aspect of this disclosure, a rearview mirror assembly includes a housing; a circuit board disposed within the housing; and a glare sensor assembly disposed within the housing. The glare sensor assembly includes a light sensor and optics, the light sensor communicating with the circuit board and the optics communicating with the light sensor. The optics are formed from an infrared blocking dye and a cured epoxy resin. The optics may include a primary optics and an auxiliary optics. The auxiliary optics may be configured to receive light and guide the light to the primary optics.

[0006] By referring to the following description, claims and drawings, those skilled in the art will further understand and appreciate these and other features, advantages and objectives of this disclosure. Attached Figure Description

[0007] In the attached diagram:

[0008] Figure 1 This is a top rear elevation view of the interior compartment of a vehicle having the rearview mirror assembly of this disclosure;

[0009] Figure 2 This is a top perspective view of the rearview mirror assembly disclosed herein;

[0010] Figure 3 This is a top perspective exploded view of the rearview mirror assembly disclosed herein; and

[0011] Figure 4 This is an enlarged top perspective view of the glare sensor assembly of the rearview mirror assembly disclosed herein;

[0012] Figure 5 This is an enlarged top perspective view of the glare sensor assembly of the rearview mirror assembly disclosed herein;

[0013] Figure 6 This is a front perspective view of the glare sensor assembly disclosed herein;

[0014] Figure 7 This is a rear perspective view of the glare sensor assembly disclosed herein; and

[0015] Figure 8 It is a block diagram showing the process of forming an epoxy resin with infrared additives for use with optical devices for light sensors. Detailed Implementation

[0016] The embodiments currently presented primarily concern the combination of method steps and device components relating to a rearview mirror assembly having a glare sensor assembly that is impervious to infrared light. Therefore, device components and method steps have been indicated where appropriate by conventional symbols in the figures, with only those specific details relevant to understanding embodiments of this disclosure shown to avoid obscuring the disclosure, which has details that will be obvious to those skilled in the art and have the benefit of the description herein. Further, the same numbers in the description and figures denote the same elements.

[0017] For the purposes described herein, the terms “up,” “down,” “right,” “left,” “back,” “front,” “vertical,” “horizontal,” and their derivatives shall be used as follows: Figure 1The orientations used herein are relevant to this disclosure. Unless otherwise stated, the term "front" refers to the device surface closest to the intended viewer, and the term "rear" refers to the device surface furthest from the intended viewer. However, it should be understood that various alternative orientations may be used in this disclosure, except where explicitly specified otherwise. It should also be understood that the specific devices and processes shown in the accompanying drawings and described in the description below are merely exemplary embodiments of the inventive concepts defined in the appended claims. Therefore, specific dimensions and other physical characteristics relating to the embodiments disclosed herein should not be considered limiting unless expressly stated otherwise in the claims.

[0018] The terms “including,” “comprises,” “comprising,” or any other variations thereof are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but may also include other elements not expressly listed or not inherent to such process, method, article, or apparatus. Without further constraints, an element preceded by “including…” does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0019] refer to Figure 1-5 Reference numeral 10 generally indicates a rearview mirror assembly comprising a housing 12 having an adjustable light-reflecting element 14 and a glare sensor assembly 16. The glare sensor assembly 16 includes a circuit board 18 housed within the housing 12. The glare sensor assembly 16 also includes a light sensor 20 and a main optics element 22, the light sensor communicating with the circuit board 18, and the main optics element being proximate to and communicating with the light sensor 20. The main optics element 22 is a substantially homogeneous cured epoxy resin mixture that at least partially blocks infrared light from exposure to the light sensor 20. An auxiliary optics element 24 may be disposed behind the adjustable light-reflecting element 14 of the electro-optical assembly. The auxiliary optics element 24 receives light and directs it to the main optics element 22.

[0020] Now for reference Figure 1The vehicle 30, defining an interior compartment 32, includes a rearview mirror assembly 10. The rearview mirror assembly 10 incorporates an interior compartment monitoring system 34, including but not limited to a driver monitoring system or an in-cabin monitoring system. The rearview mirror assembly 10 also includes a dimmable reflective element 14, which may be in the form of an electro-optical assembly or an electrochromic assembly, and is supported between a housing 12 and a frame 38. However, it is also contemplated that the rearview mirror assembly 10 may be without a frame 38, such that the dimmable reflective element 14 is coupled to and supported therein by the housing 12. A circuit board 18, which may be a printed circuit board (PCB), is disposed within the housing 12 and typically supports a glare sensor assembly 16. It is contemplated that the PCB 18 may comprise a single PCB or multiple PCBs disposed at different locations within the housing 12. Additionally, it will be noted that the glare sensor assembly 16 may be spaced apart from the PCB 18 and does not need to be directly coupled to the PCB.

[0021] In some cases, the use of the interior cabin monitoring system 34 may cause the dimmable reflective element 14 to unintentionally dim because the glare sensor assembly 16 is exposed to and detects infrared (IR) light emitted by the interior cabin monitoring system 34. For example... Figure 1 As shown, the interior cabin monitoring system 34 emits infrared rays A and B. Infrared rays A and B are then captured by sensors of the interior cabin monitoring system 34 that monitor activities or events within the cabin. However, the glare sensor assembly 16 can also capture IR light emitted by the interior cabin monitoring system 34, which can be detected as glare by the processor of the circuit board 18, thereby causing the dimmable reflective element 14 to dim unintentionally.

[0022] like Figure 1 As shown, the glare sensor assembly 16 of the rearview mirror assembly 10 faces the interior compartment 32 of the vehicle 30 and is therefore easily exposed to infrared light when using the interior compartment monitoring system 34. As previously described, the glare sensor assembly 16 captures light via a main optics element 22, which may be a glare sensor lens adjacent to the light sensor 20. An auxiliary optics element 24 may be an external lens that guides light to the main optics element 22. Alternatively, the auxiliary optics element 24 may be part of a tunable light-reflecting element 14. In this case, the tunable light-reflecting element 14 provides a path for light to be received by the main optics element 22.

[0023] Now for reference Figure 2 and 3In the illustrated configuration, the glare sensor assembly 16 is housed within the housing 12, behind the dimmable reflective element 14. As shown, the dimmable reflective element 14 is positioned between a bezel 38 and a printed circuit board 18. The bezel 38 is typically configured to engage with the housing 12 and secure the dimmable reflective element 14 to the housing 12. However, as briefly discussed above, it is envisioned that the dimmable reflective element 14 can be directly connected to the housing 12, thereby eliminating the need for the bezel 38. The dimmable reflective element 14 includes a front substrate 42 having a first surface 44 and a second surface 46, and a rear substrate 52 defining a third surface 54 and a fourth surface 56. Typically, a reflective coating is disposed on the third surface 54 of the rear substrate 52, but it may also be positioned on the fourth surface 56 of the rear substrate 52. An electro-optical medium is disposed between the second surface 46 and the third surface 54 and is configured to darken when the processor detects glare. The housing 12 is configured to house various other components, such as a ball mount 58. Figure 2 This can be a single-ball mount or a double-ball mount. It is noteworthy that light from the interior compartment 32 of the vehicle 30 enters the glare sensor assembly 16 by passing through the adjustable reflective element 14, and more specifically, through at least partially transparent portions 60, 62 of the front substrate 42 and the rear substrate 52, respectively. In some cases, the glare sensor assembly 16 may be positioned at the chin of the housing 12 or elsewhere relative to the housing 12, such that the glare sensor assembly 16 is not positioned behind the adjustable reflective element 14.

[0024] Now for reference Figure 4 and 5To minimize high exposure of infrared (IR) light to the glare sensor assembly 16, the main optics 22 or glare sensor lens is provided with an IR blocking agent configured to block up to 99.9999% of infrared light exposed to the glare sensor assembly 16. In other configurations, at least 99.99% of infrared light is blocked, and in other configurations, at least 98% of IR light is blocked. In other configurations, at least 95% of IR light is blocked. The glare sensor lens or main optics 22 is constructed of epoxy resin, typically a two-part epoxy resin comprising a first part (e.g., resin) and a second part (e.g., a hardener). As described herein, the IR blocking agent is uniformly dispersed in the two parts of epoxy resin to form an IR blocking epoxy resin mixture 78. The IR blocking agent is typically in the form of an infrared blocking dye (possibly a dye with a visible green hue). In some cases, the dye color may include a peak wavelength of approximately 500 nm to 570 nm. The dye is provided during the mixing of the first and second parts of the epoxy resin. The IR blocking agent does not impede or otherwise reduce any physical or optical properties of the glare sensor lens or the main optics 22. Furthermore, the main optics 22 maintains the same thermal properties, such that excessive heating or cooling does not affect the practical use of the glare sensor assembly 16 for the main optics 22. This construction of the glare sensor assembly 16 improves the overall performance of the tunable reflective element 14 because infrared light no longer reaches the glare sensor assembly 16 but is blocked by the infrared blocking agent dye dispersed within the epoxy resin material constituting the main optics 22 or the glare sensor lens. Therefore, unintentional dimming or brightening of the tunable reflective element 14 is reduced or eliminated. The infrared blocking agent dye is generally soluble in epoxy resin and is uniformly dispersed throughout the main optics 22 or the glare sensor lens. Additionally, the infrared blocking agent dye does not impair the thermal stability of the main optics 22 or the glare sensor lens over time. As a result, infrared light between 800 nm and 1,000 nm is essentially or completely blocked, while visible light in the range of 400 nm to 700 nm still reaches the glare sensor lens or main optics 22, thus maintaining optimal use of the glare sensor assembly 16.

[0025] Refer again Figure 4 and 5PCB 18 may include a main aperture 63A configured to receive a primary optics device 22 and a mounting aperture 63B configured to receive an auxiliary optics device 24. In the illustrated configuration, the primary optics device 22 is inserted through the rear surface 64 of PCB 18. The primary optics device 22 may include connection features for securing the primary optics device 22 to the circuit board 18. In the illustrated configuration, the central portion of the primary optics device 22 includes an enlarged light-receiving region with a light-receiving lens 65. It is generally contemplated that the primary optics device 22 can be inserted into the main aperture 63A of PCB 18 before the auxiliary optics device 24 is connected to the circuit board 18. However, it is also contemplated that the primary optics device 22 can be installed simultaneously with or after the auxiliary optics device 24 is mounted or operatively coupled to the circuit board 18. It is also contemplated that the auxiliary optics device 24 may include a receiving aperture configured to receive at least a portion of the primary optics device 22. Figure 4 and 5 As shown, the front surface 66 of the auxiliary optics 24 may include grooves 67 in the form of a series of parallel channels, the grooves horizontally traversing the front surface 66 of the auxiliary optics 24. The grooves 67 are configured to guide light to the main optics 22 before it is received into the photosensor 20. In other words, the front surface 66 of the auxiliary optics 24 may include a grooved appearance, and in some cases, may have intersecting channels to provide a pincushion configuration on the front surface 66.

[0026] Auxiliary optics 24 can be coupled to circuit board 18 in various ways, including snap-fit ​​connections, such as... Figure 4 and 5 As shown in the diagram. In this configuration, a rearwardly extending arm 68 protrudes from the rear surface 69 of the auxiliary optics 24. The rearwardly extending arm 68 includes an outwardly projecting latch 70 designed to protrude through a mounting hole 63B and frictionally engage the rear surface 64 of the circuit board 18. It is generally contemplated that the rearwardly extending arm 68 may be flexible to engage the circuit board 18 in a snap-fit ​​manner. It is also contemplated that the auxiliary optics 24 may be adhered to or secured to the circuit board 18, and possibly to the main optics 22, before, after, or during installation. The auxiliary optics 24 may be constructed from a variety of materials, including glass or polymers. Regardless of the materials used to construct the auxiliary optics 24, the optical portions of the auxiliary optics 24 may be at least partially translucent in some cases and at least partially transparent in others. It is also contemplated that the auxiliary optics 24 comprises a substantially colorless body.

[0027] Now for reference Figure 8Step 80 involves introducing a first portion (i.e., resin) and a second portion (i.e., hardener) to form an epoxy resin, which is then injection molded to form the main optics 22 of the glare sensor assembly 16. It is contemplated that an IR blocking agent may be introduced separately into the mixture (step 84). Alternatively, the IR blocking agent may be introduced together with the first portion of the epoxy resin before being mixed with the second portion, or may be mixed with the second portion before being mixed with the first portion. Once the IR blocking agent, the first portion, and the second portion of the epoxy resin have been properly mixed such that the mixture is substantially or completely homogeneous, the IR blocking epoxy resin mixture 78 is injection molded onto a lead frame providing a metal connector 79 to form the main optics 22 (step 86). The metal connector 79 extends outward from the main optics 22 and provides electrical connection to the circuit board 18 after mounting to the circuit board 18. Then, in step 90, if the glare sensor assembly 16 is not located behind the dimmable reflective element 14, the circuit board 18 is installed inside the housing 12 (step 88) behind the dimmable reflective element 14 or another suitable auxiliary optics device 24 (external cover lens).

[0028] In another case, the epoxy resin used to form the main optics 22 of the glare sensor assembly 16 is prepared as a component. The epoxy resin, curing agent, and additives are mixed together with an IR blocking material, and a b-stage is performed. In other words, the epoxy resin, curing agent, and additives are mixed together with the IR blocking material and then partially cured. During the partial curing stage, curing stops at a stable but storable form. Thus, the IR blocking material is dispersed into this mixture during preparation. The finished IR blocking epoxy resin mixture 78 used to form the main optics 22 assembly is then passed through molding (melting, molding, partial curing, etc.) to form the main optics 22 for the light sensor 20. The main optics 22 for the light sensor 20 is then demolded and further cured to achieve the desired physical properties required for use in the glare sensor assembly 16.

[0029] In another case, the light receiving lens 65 may be coated with an IR blocking dye film that blocks almost all infrared light from penetrating to the light sensor 20.

[0030] Those skilled in the art will understand that the construction of the described disclosure and other components is not limited to any particular material. Unless otherwise described herein, other exemplary embodiments of the disclosure herein may be formed from a wide variety of materials.

[0031] According to one aspect of this disclosure, a rearview mirror assembly includes a housing having an adjustable light-reflecting element and a glare sensor assembly. The glare sensor assembly includes a circuit board disposed within the housing; a light sensor communicating with the circuit board; and a main optics element proximate to and communicating with the light sensor. The main optics element is a substantially uniform cured epoxy resin having an infrared-blocking dye with a green tint, the substantially uniform cured epoxy resin at least partially blocking infrared light from exposure to the light sensor. An auxiliary optics element is configured to receive light and direct the light to the main optics element. The main optics element is disposed between the circuit board and the auxiliary optics element.

[0032] According to another aspect of this disclosure, at least a portion of the main optics extends through the circuit board.

[0033] According to another aspect of this disclosure, infrared blocking dyes block 99% to 99.99% of infrared light.

[0034] According to another aspect of this disclosure, the glare sensor assembly is positioned behind the electro-optical assembly.

[0035] According to another aspect of this disclosure, the auxiliary optical device comprises a substantially colorless body.

[0036] According to another aspect of this disclosure, the auxiliary optics includes an arm configured to snap onto a circuit board.

[0037] According to another aspect of this disclosure, the main optical device and the auxiliary optical device are in adjacent contact.

[0038] According to another aspect of this disclosure, the auxiliary optics includes a grooved front surface configured to receive light.

[0039] According to another aspect of this disclosure, a rearview mirror assembly includes a housing having an adjustable light-reflecting element and a glare sensor assembly. The glare sensor assembly includes a circuit board disposed within the housing; a light sensor communicating with the circuit board; and a main optics element proximate to and communicating with the light sensor. The main optics element is a substantially homogeneous cured epoxy resin that at least partially blocks infrared light from exposure to the light sensor. An auxiliary optics element is configured to receive light and guide the light to the main optics element.

[0040] According to another aspect of this disclosure, the main optics are attached to the rear surface of the circuit board. At least a portion of the main optics extends through the circuit board.

[0041] According to another aspect of this disclosure, light with wavelengths between 800 nm and 1,000 nm is substantially blocked by the main optics.

[0042] According to another aspect of this disclosure, light with wavelengths between 400 nm and 700 nm is substantially not blocked by the main optics.

[0043] According to another aspect of this disclosure, a rearview mirror assembly includes a housing; a circuit board disposed within the housing; and a glare sensor assembly disposed within the housing. The glare sensor assembly includes a light sensor and optics, the light sensor communicating with the circuit board and the optics communicating with the light sensor. The optics are formed from an infrared blocking dye and a cured epoxy resin.

[0044] According to another aspect of this disclosure, infrared blocking dyes block infrared light.

[0045] According to another aspect of this disclosure, the optical device includes a main optical device and an auxiliary optical device, the main optical device being close to and communicating with a light sensor, and the auxiliary optical device being configured to receive light and guide the light to the main optical device.

[0046] According to another aspect of this disclosure, the main optical element and the auxiliary optical element are integrally molded together.

[0047] According to another aspect of this disclosure, the glare sensor assembly provides light input to a light sensor that communicates with an interior cabin monitoring system.

[0048] According to another aspect of this disclosure, the main optical element is a substantially uniformly cured epoxy resin.

[0049] For the purposes of this disclosure, the term "coupled" (in all its forms, couple, coupling, coupled, etc.) generally means the direct or indirect engagement of two components (electrical or mechanical). Such engagement may be static or movable in nature. Such engagement may be achieved using two (electrical or mechanical) components and any additional intermediate member integral with or forming a single unit with each other or with the two components. Unless otherwise stated, such engagement may be permanent in nature, or removable or detachable in nature.

[0050] It is also worth noting that the construction and arrangement of the elements of this disclosure as shown in the exemplary embodiments are merely illustrative. Although only a few embodiments of the invention have been described in detail in this disclosure, those skilled in the art to which this disclosure pertains will readily appreciate that many modifications are possible (e.g., variations in the size, dimensions, structure, shape and proportions, parameter values, mounting arrangements, use of materials, color, orientation, etc. of various elements) without substantially departing from the novel teachings and advantages of the subject matter. For example, integrally formed elements may be constructed from multiple parts, or elements shown as multiple parts may be integrally formed; the operation of the interface may be reversed or otherwise altered; the length or width of the structure and / or components or connectors or other elements of the system may be changed; the nature or number of adjustment positions between elements may be changed. It should be noted that the elements and / or assemblies of the system may be constructed from any of a wide variety of materials that provide sufficient strength or durability, and may be available in any of a wide variety of colors, textures, and combinations. Therefore, all such modifications are intended to be included within the scope of this invention. Other substitutions, modifications, alterations, and omissions may be made in the design, operating conditions, and arrangement of desired and other exemplary embodiments without departing from the spirit of this invention.

[0051] It should be understood that any described process or step within a described process may be combined with other disclosed processes or steps to form a structure within the scope of this disclosure. The exemplary structures and processes disclosed herein are for illustrative purposes and should not be construed as limiting.

Claims

1. A rearview mirror assembly, characterized in that, Include: Housing, the housing including a dimmable reflective element and a glare sensor assembly, the glare sensor assembly including: A circuit board, which is housed within the housing; A light sensor, which communicates with the circuit board; and A main optics element, the main optics element being close to and communicating with the light sensor, wherein the main optics element is a uniformly cured epoxy resin having an infrared blocking agent dye with a green tint, the uniformly cured epoxy resin at least partially blocking infrared light from exposure to the light sensor; and An auxiliary optics device is configured to receive light and guide the light to the main optics device, wherein the main optics device is disposed between the circuit board and the auxiliary optics device.

2. The rearview mirror assembly according to claim 1, characterized in that, At least a portion of the main optical element extends through the circuit board.

3. The rearview mirror assembly according to any one of claims 1 or 2, characterized in that, The infrared blocking dye blocks 99% to 99.99% of infrared light.

4. The rearview mirror assembly according to any one of claims 1 or 2, characterized in that, The glare sensor assembly is positioned behind the electro-optical assembly.

5. The rearview mirror assembly according to any one of claims 1 or 2, characterized in that, The auxiliary optical device comprises a colorless body.

6. The rearview mirror assembly according to any one of claims 1 or 2, characterized in that, The auxiliary optical device includes an arm configured to snap onto the circuit board.

7. The rearview mirror assembly according to any one of claims 1 or 2, characterized in that, The main optical device and the auxiliary optical device are in adjacent contact.

8. The rearview mirror assembly according to any one of claims 1 or 2, characterized in that, The auxiliary optics includes a grooved front surface configured to receive light.

9. A rearview mirror assembly, characterized in that, Include: Housing, the housing including a dimmable reflective element and a glare sensor assembly, the glare sensor assembly including: A circuit board, which is housed within the housing; A light sensor, which communicates with the circuit board; and A main optics element, the main optics element being close to and communicating with the light sensor, wherein the main optics element is a uniformly cured epoxy resin, the uniformly cured epoxy resin at least partially blocking infrared light from exposure to the light sensor; and An auxiliary optics device is configured to receive light and guide the light to the main optics device.

10. The rearview mirror assembly according to claim 9, characterized in that, The main optics are attached to the rear surface of the circuit board, and at least a portion of the main optics extends through the circuit board.

11. The rearview mirror assembly according to any one of claims 9 or 10, characterized in that, Light with wavelengths between 800 nm and 1,000 nm is blocked by the main optics.

12. The rearview mirror assembly according to any one of claims 9 or 10, characterized in that, Light with wavelengths between 400 nm and 700 nm is not blocked by the main optics.

13. The rearview mirror assembly according to any one of claims 9 or 10, characterized in that, The auxiliary optical device includes an arm configured to snap onto the circuit board.

14. The rearview mirror assembly according to any one of claims 9 or 10, characterized in that, The glare sensor assembly is positioned behind the electro-optical assembly.

15. A rearview mirror assembly, characterized in that, Include: case; Circuit board, the circuit board being housed within the housing; and A glare sensor assembly, wherein the glare sensor assembly is disposed within the housing, the glare sensor assembly comprising: An optical sensor, which communicates with the circuit board; as well as An optical device that communicates with the optical sensor, wherein the optical device is formed from an infrared blocking dye and a cured epoxy resin.

16. The rearview mirror assembly according to claim 15, characterized in that, The infrared blocking dye blocks infrared light.

17. The rearview mirror assembly according to any one of claims 15 or 16, characterized in that, The optical device includes a main optical device and an auxiliary optical device. The main optical device is located near the light sensor and communicates with the light sensor. The auxiliary optical device is configured to receive light and guide the light to the main optical device.

18. The rearview mirror assembly according to claim 17, characterized in that, The main optical component and the auxiliary optical component are integrally molded together.

19. The rearview mirror assembly according to any one of claims 15 or 16, characterized in that, The glare sensor assembly provides light input to the light sensor, which communicates with the interior cabin monitoring system.

20. The rearview mirror assembly according to claim 17, characterized in that, The main optical component is a uniformly cured epoxy resin.

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