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Kafe 바로가기국가/구분 | United States(US) Patent 등록 |
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국제특허분류(IPC7판) |
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출원번호 | US-0406859 (2017-01-16) |
등록번호 | US-10029616 (2018-07-24) |
발명자 / 주소 |
|
출원인 / 주소 |
|
대리인 / 주소 |
|
인용정보 | 피인용 횟수 : 0 인용 특허 : 1457 |
A mirror reflective element assembly for a vehicle includes an electrically variable reflectance mirror reflective element that includes front and rear substrates with an electrochromic medium disposed therebetween and bounded by a perimeter seal. A perimeter layer is disposed at a second surface of
A mirror reflective element assembly for a vehicle includes an electrically variable reflectance mirror reflective element that includes front and rear substrates with an electrochromic medium disposed therebetween and bounded by a perimeter seal. A perimeter layer is disposed at a second surface of the front substrate proximate a perimeter edge of the front substrate that conceals the perimeter seal from view by a driver of a vehicle. At least a portion of the mirror reflector extends from under the perimeter seal outward towards at least a portion of the perimeter edge of the rear substrate. The mirror reflective element includes a more curved outboard region and a less curved inboard region. A laser-etched demarcation may demarcate the more curved outboard region of the mirror reflective element from the less curved inboard region of the mirror reflective element.
1. An exterior electrically variable reflectance mirror reflective element assembly suitable for use for a vehicle, said exterior electrically variable reflectance mirror reflective element assembly comprising: an electrically variable reflectance mirror reflective element;wherein said electrically
1. An exterior electrically variable reflectance mirror reflective element assembly suitable for use for a vehicle, said exterior electrically variable reflectance mirror reflective element assembly comprising: an electrically variable reflectance mirror reflective element;wherein said electrically variable reflectance mirror reflective element comprises a front substrate and a rear substrate and an electrochromic medium disposed between said front and rear substrates;wherein said front substrate has a first surface and a second surface and wherein a transparent electrically conductive layer is disposed at said second surface of said front substrate;wherein said rear substrate has a third surface and a fourth surface and wherein a mirror reflector is disposed at at least a portion of said third surface of said rear substrate;wherein said mirror reflector comprises a stack of thin films and wherein said stack of thin films comprises at least a first metal thin film and a second metal thin film;wherein said first metal thin film is formed of a metal material that has a specific resistivity of less than 1×10−3 ohm·cm;wherein said second metal thin film is formed of a metal material that has a specific resistivity of less than 1×10−3 ohm·cm;wherein said metal material of said first metal thin film is different than said metal material of said second metal thin film;wherein said mirror reflector provides at least 55 percent photopic reflectance measured in accordance with Society of Automotive Engineers test procedure SAE J964a;wherein said electrochromic medium is disposed in an interpane cavity between said third surface of said rear substrate and said second surface of said front substrate and is bounded by a perimeter seal;wherein width of said perimeter seal is at least 0.5 mm and not greater than 3 mm;wherein no part of said rear substrate extends beyond any part of said front substrate;wherein at least a perimeter edge portion of said rear substrate is inward of a corresponding perimeter edge portion of said front substrate by 0.1 mm to 2 mm;wherein a perimeter layer is disposed at said second surface of said front substrate proximate a perimeter edge of said front substrate, and wherein said perimeter layer comprises a reflective perimeter layer;wherein said perimeter layer comprises at least one metal thin film and wherein said perimeter layer is electrically conductive;wherein said perimeter layer generally conceals said perimeter seal from view by a driver of a vehicle normally viewing said front substrate when said exterior electrically variable reflectance mirror reflective element assembly is mounted in an exterior mirror assembly attached at an exterior portion of the vehicle;wherein at least a portion of said mirror reflector extends from under said perimeter seal outward towards at least a portion of said perimeter edge of said rear substrate;wherein said electrically variable reflectance mirror reflective element comprises a curved mirror reflective element having a more curved outboard region and a less curved inboard region, and wherein said front and rear substrates comprise aspheric substrates; andwherein a laser-etched demarcation demarcates said more curved outboard region of said electrically variable reflectance mirror reflective element from said less curved inboard region of said electrically variable reflectance mirror reflective element. 2. The exterior electrically variable reflectance mirror reflective element assembly of claim 1, wherein said front substrate has a thickness of 0.063 inches or less and said rear substrate has a thickness of 0.063 inches or less. 3. The exterior electrically variable reflectance mirror reflective element assembly of claim 2, wherein said mirror reflector has a sheet resistance of no greater than 5 ohms per square. 4. The exterior electrically variable reflectance mirror reflective element assembly of claim 3, wherein said first metal thin film has a thickness of at least 600 angstroms. 5. The exterior electrically variable reflectance mirror reflective element assembly of claim 1, wherein said laser-etched demarcation is between 0.01 mm and 0.5 mm wide. 6. The exterior electrically variable reflectance mirror reflective element assembly of claim 1, wherein width of said perimeter seal is at least 1 mm and not greater than 2 mm. 7. The exterior electrically variable reflectance mirror reflective element assembly of claim 1, wherein light that reflects off of said mirror reflector and passes through said electrochromic medium and said front substrate has a substantially untinted reflectant characteristic to a viewer normally viewing said front substrate of said electrically variable reflectance mirror reflective element when no voltage is applied to said electrochromic medium. 8. The exterior electrically variable reflectance mirror reflective element assembly of claim 7, wherein said exterior electrically variable reflectance mirror reflective element assembly comprises a driver-side exterior electrically variable reflectance mirror reflective element assembly suitable for use in a driver-side exterior mirror assembly attached at a driver-side exterior portion of a vehicle. 9. The exterior electrically variable reflectance mirror reflective element assembly of claim 1, wherein said perimeter seal is at least partially visible to a viewer viewing through said rear substrate. 10. The exterior electrically variable reflectance mirror reflective element assembly of claim 1, wherein an electrically conductive epoxy is in electrical contact with at least one of (i) said perimeter layer disposed at said second surface of said front substrate and (ii) said transparent electrically conductive layer disposed at said second surface of said front substrate. 11. The exterior electrically variable reflectance mirror reflective element assembly of claim 1, wherein an electrically conductive epoxy is in electrical contact with said at least a portion of said mirror reflector that extends from under said perimeter seal outward towards said at least a portion of said perimeter edge of said rear substrate. 12. The exterior electrically variable reflectance mirror reflective element assembly of claim 1, wherein said laser-etched demarcation comprises a continuous line. 13. The exterior electrically variable reflectance mirror reflective element assembly of claim 1, wherein said laser-etched demarcation comprises interspaced dots, dashes or spots. 14. The exterior electrically variable reflectance mirror reflective element assembly of claim 1, wherein said exterior electrically variable reflectance mirror reflective element assembly comprises a light source, and wherein said light source comprises a light source of an indicator, and wherein said indicator is disposed rearward of said electrically variable reflectance mirror reflective element and, when actuated, illuminates through said exterior electrically variable reflectance mirror reflective element. 15. An electrically variable reflectance mirror reflective element assembly suitable for use for a vehicle, said electrically variable reflectance mirror reflective element assembly comprising: an electrically variable reflectance mirror reflective element;wherein said electrically variable reflectance mirror reflective element comprises a front substrate and a rear substrate and an electrochromic medium disposed between said front and rear substrates;wherein said front substrate has a first surface and a second surface and wherein a transparent electrically conductive layer is disposed at said second surface of said front substrate;wherein said rear substrate has a third surface and a fourth surface and wherein a mirror reflector is disposed at at least a portion of said third surface of said rear substrate;wherein at least one of said front substrate and said rear substrate has a thickness of 0.063 inches or less;wherein said mirror reflector comprises a stack of thin films and wherein said stack of thin films comprises at least a first metal thin film and a second metal thin film;wherein said first metal thin film is formed of a metal material that has a specific resistivity of less than 1×10−3 ohm·cm;wherein said second metal thin film is formed of a metal material that has a specific resistivity of less than 1×10−3 ohm·cm;wherein said metal material of said first metal thin film is different than said metal material of said second metal thin film;wherein said mirror reflector provides at least 55 percent photopic reflectance measured in accordance with Society of Automotive Engineers test procedure SAE J964a;wherein said electrochromic medium is disposed in an interpane cavity between said third surface of said rear substrate and said second surface of said front substrate and is bounded by a perimeter seal;wherein width of said perimeter seal is at least 0.5 mm and not greater than 3 mm;wherein no part of said rear substrate extends beyond any part of said front substrate;wherein at least a perimeter edge portion of said rear substrate is inward of a corresponding perimeter edge portion of said front substrate by 0.1 mm to 2 mm;wherein a perimeter layer is disposed at said second surface of said front substrate proximate a perimeter edge of said front substrate, and wherein said perimeter layer comprises a reflective perimeter layer;wherein said perimeter layer comprises at least one metal thin film and wherein said perimeter layer is electrically conductive;wherein said perimeter layer generally conceals said perimeter seal from view by a driver of a vehicle normally viewing said front substrate when said electrically variable reflectance mirror reflective element assembly is mounted in a mirror assembly attached at a portion of the vehicle;wherein at least a portion of said mirror reflector extends from under said perimeter seal outward towards at least a portion of said perimeter edge of said rear substrate; andwherein light that reflects off of said mirror reflector and passes through said electrochromic medium and said front substrate has a substantially untinted reflectant characteristic to a viewer normally viewing said front substrate of said electrically variable reflectance mirror reflective element when no voltage is applied to said electrochromic medium. 16. The electrically variable reflectance mirror reflective element assembly of claim 15, wherein said mirror reflector has a sheet resistance of no greater than 5 ohms per square. 17. The electrically variable reflectance mirror reflective element assembly of claim 16, wherein said first metal thin film has a thickness of at least 600 angstroms. 18. The electrically variable reflectance mirror reflective element assembly of claim 17, wherein width of said perimeter seal is at least 1 mm and not greater than 2 mm, and wherein said electrically variable reflectance mirror reflective element assembly comprises an interior electrically variable reflectance mirror reflective element assembly suitable for use in an interior rearview mirror assembly attached at an interior portion of a vehicle. 19. An electrically variable reflectance mirror reflective element assembly suitable for use for a vehicle, said electrically variable reflectance mirror reflective element assembly comprising: an electrically variable reflectance mirror reflective element;wherein said electrically variable reflectance mirror reflective element comprises a front glass substrate and a rear glass substrate and an electrochromic medium disposed between said front and rear substrates;wherein said front glass substrate has a first surface and a second surface and wherein a transparent electrically conductive layer is disposed at said second surface of said front glass substrate;wherein said rear glass substrate has a third surface and a fourth surface and wherein a mirror reflector is disposed at at least a portion of said third surface of said rear glass substrate;wherein at least one of said front glass substrate and said rear glass substrate has a thickness of 0.063 inches or less;wherein said mirror reflector comprises a stack of thin films and wherein said stack of thin films comprises at least a first metal thin film and a second metal thin film;wherein said first metal thin film is formed of a metal material that has a specific resistivity of less than 1×10−3 ohm·cm;wherein said second metal thin film is formed of a metal material that has a specific resistivity of less than 1×10−3 ohm·cm;wherein said metal material of said first metal thin film is different than said metal material of said second metal thin film;wherein said mirror reflector provides at least 55 percent photopic reflectance measured in accordance with Society of Automotive Engineers test procedure SAE J964a;wherein said electrochromic medium is disposed in an interpane cavity between said third surface of said rear glass substrate and said second surface of said front glass substrate and is bounded by a perimeter seal;wherein width of said perimeter seal is at least 0.5 mm and not greater than 3 mm;wherein no part of said rear glass substrate extends beyond any part of said front glass substrate;wherein at least a perimeter edge portion of said rear glass substrate is inward of a corresponding perimeter edge portion of said front glass substrate by 0.1 mm to 2 mm;wherein a perimeter layer is disposed at said second surface of said front glass substrate proximate a perimeter edge of said front glass substrate, and wherein said perimeter layer comprises a reflective perimeter layer;wherein said perimeter layer comprises at least one metal thin film and wherein said perimeter layer is electrically conductive;wherein said perimeter layer generally conceals said perimeter seal from view by a driver of a vehicle normally viewing said front substrate when said electrically variable reflectance mirror reflective element assembly is mounted in a mirror assembly attached at a portion of the vehicle;wherein at least a portion of said mirror reflector extends from under said perimeter seal outward towards at least a portion of said perimeter edge of said rear glass substrate;wherein light that reflects off of said mirror reflector and passes through said electrochromic medium and said front glass substrate has a substantially untinted reflectant characteristic to a viewer normally viewing said front glass substrate of said electrically variable reflectance mirror reflective element when no voltage is applied to said electrochromic medium; andwherein at least one of (a) an electrically conductive epoxy is in electrical contact with said perimeter layer disposed at said second surface of said front substrate, (b) an electrically conductive epoxy is in electrical contact with said transparent electrically conductive layer disposed at said second surface of said front glass substrate and (c) an electrically conductive epoxy is in electrical contact with said mirror reflector disposed at at least a portion of said third surface of said rear glass substrate. 20. The electrically variable reflectance mirror reflective element assembly of claim 19, wherein said mirror reflector has a sheet resistance of no greater than 5 ohms per square.
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