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| 국가/구분 | United States(US) Patent 등록 |
|---|---|
| 국제특허분류(IPC7판) |
|
| 출원번호 | US-0732572 (1991-07-18) |
| 발명자 / 주소 |
|
| 출원인 / 주소 |
|
| 인용정보 | 피인용 횟수 : 276 인용 특허 : 0 |
An electrochromic window/glazing assembly disclosed which reduces the transmission of near-infrared and ultraviolet radiation while protecting against risk of laceration or chemical contact if broken/damaged, against ultraviolet (UV) radiation degradation, and against fogging or misting in high humi
An electrochromic window/glazing assembly disclosed which reduces the transmission of near-infrared and ultraviolet radiation while protecting against risk of laceration or chemical contact if broken/damaged, against ultraviolet (UV) radiation degradation, and against fogging or misting in high humidity conditions. The window assembly may include a pair of glass or other elements confining an electrochromic medium therebetween for varying the light transmittance through the assembly. Transmission of near-infrared radiation is reduced by a reflector incorporating at least one semitransparent, elemental, thin metal film. Preferably, the thin metal film has a physical thickness of between about 80 angstroms to about 300 angstroms and of sheet electrical resistance of no greater than about 8 ohms/square, and is sandwiched between optically transparent thin metal compound films to form a thin film stack. One of the elements also may be laminated from a pair of optically transparent, tinted, tempered safety, or other glass panels and incorporate UV radiation reducing paint/lacquer coatings or tinted or clear polymeric films. The tinted glass preferably absorbs substantially more light in those regions of the visible spectrum higher than about 560 nanometers than in other regions of the visible spectrum.
A reduced near-infrared radiation transmitting, reduced ultraviolet radiation transmitting, electrochromic glazing assembly comprising: first and second spaced, optically transparent elements, said elements being adjacent one another and having facing surfaces defining a space between said first and
A reduced near-infrared radiation transmitting, reduced ultraviolet radiation transmitting, electrochromic glazing assembly comprising: first and second spaced, optically transparent elements, said elements being adjacent one another and having facing surfaces defining a space between said first and second elements; an electrochromic medium confined in said space whose light transmittance is variable upon the application of an electric field thereto; means for applying an electric field to said electrochromic medium to cause variation in the light transmittance of said medium; ultraviolet radiation reducing means incorporated in said assembly for reducing ultraviolet radiation degradation of said electrochromic medium in said assembly and for reducing ultraviolet radiation transmittance through said assembly; and near-infrared reflective means located on at least one of said first and second elements for reducing the transmission of near-infrared radiation through said glazing assembly, said reflective means incorporating at least one semitransparent, elemental, thin metal film; said elemental thin metal film reflecting at least about 30% of the solar energy for Air Mass 2 in the spectral region from 800 nanometers to 2500 nanometers and having a physical thickness of about 80 angstroms to about 300 angstroms and a sheet electrical resistance of no greater than about 8 ohms/square.
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