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公开(公告)号:US20190033502A1
公开(公告)日:2019-01-31
申请号:US16071573
申请日:2017-01-19
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor: Guanglei DU , John A. WHEATLEY , William B. KOLB , John C. SCHULTZ , Daoyun SONG , Luke D. RIVENESS
Abstract: A system may include one or both of a light emitter and a light receiver. The system may include an optical filter adjacent one or both of the light emitter or the light receiver. The optical filter includes a wavelength selective scattering layer. The wavelength selective scattering layer may have a near-infrared scattering ratio of less than about 0.9. The filter may have a visible reflective haze ratio of greater than about 0.5. A method may include disposing the wavelength selective scattering layer adjacent one or both of the light emitter and the light receiver. An article may include the optical filter. The wavelength selective scattering layer may have an average near-infrared scattering of less than 60%, an average visible scattering of greater than 10%, and a difference between the % total visible reflectance and the % diffuse visible reflectance of less than 20.
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公开(公告)号:US20190025481A1
公开(公告)日:2019-01-24
申请号:US16071544
申请日:2016-05-06
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor: Guanglei DU , John A. WHEATLEY , Yi Hang LV , Anthony M. RENSTROM
Abstract: A system may include one or both of a light emitter (46) and a light receiver (40), and an optical filter (10). The optical filter (10) includes a wavelength selective scattering layer (14). The wavelength selective scattering layer (14) may have a near-infrared scattering ratio of less than about 0.9. The filter (10) may have a visible reflective haze ratio of greater than about 0.5. A method may include disposing the wavelength selective scattering layer (14) adjacent one or both of the light emitter (46) and the light receiver (40). The optical filter (10) may include a wavelength selective reflective layer (16). The optical filter (10) may include a wavelength selective absorbing layer (34). An article may include the optical filter (10). The wavelength selective scattering layer (14) may have an average near-infrared scattering of less than 60%, an average visible scattering of greater than 10%, and a difference between the % total visible reflectance and the % diffuse visible reflectance of less than 20.
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公开(公告)号:US20180246266A1
公开(公告)日:2018-08-30
申请号:US15755198
申请日:2016-08-25
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor: Kenneth A. EPSTEIN , John A. WHEATLEY
IPC: F21V8/00
CPC classification number: G02B6/002 , F21V7/0091 , F21V13/02 , F21V14/00 , F21Y2103/33 , G02B6/00 , G02B6/0036 , G02B6/0078
Abstract: A light guide includes a light input surface, a first major surface orthogonal to the light input surface and a second major surface opposing the first major surface and forming a converging wedge with the first major surface. The second surface includes a plurality of doublet light extraction features closely-packed or separated by a land feature. Each doublet feature includes a first prism feature having a first shape and a second prism feature having a second shape and the second shape is different than the first shape.
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公开(公告)号:US20170176652A1
公开(公告)日:2017-06-22
申请号:US15301780
申请日:2015-05-27
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor: John A. WHEATLEY , Guanglei DU , Robert L. BROTT
IPC: G02B5/02 , G02F1/1333 , G02F1/137 , F21V8/00
CPC classification number: G02B5/02 , G02B6/0051 , G02F1/1323 , G02F1/133362 , G02F1/13476 , G02F1/137 , G02F1/13781 , G02F2001/133626 , G02F2001/13756
Abstract: Optical systems are described that include a lighting component, a switchable diffuser adjacent the lighting component, and a low-absorbing optical component disposed adjacent the switchable diffuser opposite the lighting component or disposed adjacent the lighting component opposite the switchable diffuser or disposed adjacent the lighting component opposite the display panel. The switchable diffuser is capable of being in either a substantially clear state or in a first hazy state. The low-absorbing optical component provides a collimating effect or a turning effect when the lighting component is illuminated and the switchable diffuser is in the substantially clear state.
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公开(公告)号:US20160004124A1
公开(公告)日:2016-01-07
申请号:US14766689
申请日:2014-01-28
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor: Gilles J. BENOIT , John A. WHEATLEY , James A. THIELEN
IPC: G02F1/1335
CPC classification number: G02F1/133603 , G02F1/1336 , G02F2/02 , G02F2001/133614 , G02F2001/133624 , G02F2202/108 , G02F2202/36
Abstract: An optical construction is described that includes a blue light source, a liquid crystal display panel, and a quantum dot film element optically between the blue light source and the liquid crystal display panel. In some embodiments, the blue light source can emit blue light that has a wavelength in a range from 440 to 460 nm and an FWHM of less than 25 nm. Also, in some embodiments, the quantum dot film element includes a plurality of quantum dots emitting a peak red wavelength in a range from 600 to 640 nm, an FWHM of less than 50 nm, a peak green wavelength in a range from 515 to 555 nm, and an FWHM of less than 40 nm. The quantum dot film element can be optically between the blue light source and the LCD panel.
Abstract translation: 描述了在蓝色光源和液晶显示面板之间光学构造的光学结构,其包括蓝色光源,液晶显示面板和量子点膜元件。 在一些实施例中,蓝光源可以发射具有在440至460nm范围内的波长和小于25nm的FWHM的蓝光。 此外,在一些实施例中,量子点膜元件包括发射在600至640nm范围内的峰值红色波长的多个量子点,小于50nm的FWHM,在515至555的范围内的峰值绿色波长 nm,FWHM小于40nm。 量子点膜元件可以在蓝光源和LCD面板之间光学地进行。
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公开(公告)号:US20160003998A1
公开(公告)日:2016-01-07
申请号:US14766641
申请日:2014-02-04
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor: Gilles J. BENOIT , John A. WHEATLEY , James A. THIELEN , David Scott THOMPSON
IPC: F21V8/00 , G02F1/1335
CPC classification number: G02B6/0026 , B82Y20/00 , G02B6/0025 , G02B6/003 , G02B6/0031 , G02F1/133502 , G02F1/133617 , G02F2001/133614 , G02F2202/36 , Y10S977/774
Abstract: An optical construction includes a quantum dot film element including a plurality of quantum dots, a first optical recycling element, and a first low refractive index element separating the quantum dot film element from the first optical recycling element. The first low refractive index element has a refractive index of 1.3 or less.
Abstract translation: 光学结构包括包括多个量子点的量子点膜元件,第一光学循环元件和将量子点膜元件与第一光学再循环元件分开的第一低折射率元件。 第一低折射率元件的折射率为1.3以下。
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