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公开(公告)号：WO2022238781A1
公开(公告)日：2022-11-17
申请号：PCT/IB2022/053553
申请日：2022-04-14
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： LIU, Tao , FAN, Shu-Ching , BOYD, Gary T. , THOMPSON, David Scott , NELSON, Caleb T. , PHAM, Tri D. , RINGBERG, Adam T. , SCHMIDT, Daniel J. , ANDERSON, Owen M.
IPC: G02B3/08 , G02B5/02 , G02B2207/123
Abstract: An optical system includes an optical film curved about a first axis and a light control film curved about the first axis and substantially coextensive with the optical film. The optical film includes a first layer including a microstructured first major surface where the microstructured first major surface defines a linear Fresnel lens including a plurality of Fresnel elements extending along the first axis. The first major surface of the optical film faces the light control film. The light control film includes a plurality of spaced apart optically absorptive regions extending along the first axis and along a direction substantially normal to a major surface of the light control film. At least one of the optical film or at least one layer disposed between the optical film and the light control film includes at least one reflection mitigation element.
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公开(公告)号：WO2021090129A1
公开(公告)日：2021-05-14
申请号：PCT/IB2020/060183
申请日：2020-10-29
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： LIU, Tao , BOYD, Gary T. , SCHMIDT, Daniel J. , NELSON, Caleb T. , ANDERSON, Owen M. , PHAM, Tri D. , HAO, Encai , FAN, Shu-Ching
Abstract: An optical system includes a light source, an optical film curved about a first axis, and a light control film curved about the first axis and disposed between the light source and the optical film. The optical film includes a microstructured first major surface and an opposing second major surface. The microstructured first major surface defines a linear Fresnel lens including a plurality of Fresnel elements extending longitudinally along the first axis. The first major surface of the optical film faces the light control film. The light control film includes a plurality of alternating optically transmissive and optically absorptive regions extending longitudinally along the first axis such that in a cross-section orthogonal to the first axis, for at least a majority of the optically transmissive regions, a centerline between adjacent optically absorptive regions is substantially normal to a major surface of the light control film.
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公开(公告)号：WO2019003087A1
公开(公告)日：2019-01-03
申请号：PCT/IB2018/054674
申请日：2018-06-25
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： LIU, Tao , LU, Yongshang , MERCORD, David C. , OSTLIE, Brian W.
IPC: F21V8/00
Abstract: A unitary lightguide including a first lightguide section extending along a first direction and a second lightguide section extending along a second direction is described. The second lightguide section includes a plurality of light extractors for extracting light that would otherwise propagate within and along the second lightguide section. The unitary lightguide includes a boundary region disposed between and joining the first and second lightguide sections and including a plurality of spaced apart light redirecting features. Each light redirecting feature includes a first portion extending substantially parallel to the first direction, and a second portion extending from proximate the first end of the first portion toward the second lightguide section and making an angle with the first portion in a range from about 10 degrees to about 70 degrees.
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公开(公告)号：WO2016077110A1
公开(公告)日：2016-05-19
申请号：PCT/US2015/058926
申请日：2015-11-04
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： LIU, Tao , NAPIERALA, Mark E.
IPC: F21V8/00
CPC classification number: G02B6/001 , B60Q1/26 , B60Q3/64 , F21W2131/40 , F21Y2115/10 , G02B6/006
Abstract: Various embodiments of lightguides and illumination systems that include lightguides are disclosed. In one or more embodiments, a lightguide can include first and second light extractors (330,340) that extract light that would otherwise be confined and propagate within the lightguide along the length of the lightguide primarily by total internal reflection. The first and second light extractors can form respective first and second patterns along a length of the lightguide. Light extracted by the first light extractors can exit the lightguide primarily along a first direction (306). Light extracted by the second light extractors can exit the lightguide primarily along a second direction (308) different from the first direction. A brightness of the total light extracted by the first light extractors can be larger than a brightness of the total light extracted by the second light extractors.
Abstract translation: 公开了包括光导的光导和照明系统的各种实施例。 在一个或多个实施例中，光导可以包括第一和第二光提取器（330,340），该第一和第二光提取器（330,340）主要通过全内反射来提取否则将沿着光导的长度限制和传播在光导内的光。 第一和第二光提取器可以沿着光导的长度形成相应的第一和第二图案。 由第一光提取器提取的光可以主要沿着第一方向（306）离开光导。 由第二光提取器提取的光可以主要沿着与第一方向不同的第二方向（308）离开光导。 由第一光提取器提取的总光的亮度可以大于由第二光提取器提取的总光的亮度。
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5.发明申请
公开(公告)号：WO2013059226A1
公开(公告)日：2013-04-25
申请号：PCT/US2012/060483
申请日：2012-10-17
Applicant: 3M INNOVATIVE PROPERTIES COMPANY , NEVITT, Timothy J. , WEBER, Michael F. , WHEATLEY, John A. , SOUSA, Matthew E. , LIU, Tao
Inventor： NEVITT, Timothy J. , WEBER, Michael F. , WHEATLEY, John A. , SOUSA, Matthew E. , LIU, Tao
CPC classification number: G02F1/133605 , F21V7/04 , F21V13/08 , G02B5/305 , G02B6/0055 , G02B6/0096 , G02F1/133603 , G02F1/133615
Abstract: A backlight (10) includes a front and back reflectors (12,14) forming a light recycling cavity (16) and one or more light source members (24a, 24b, 24c) disposed to emit light into the light recycling cavity. The front reflector (12) being partially reflective to provide an output illumination area. The front reflector (12) has a blue sloped transmission spectra, at normal incidence with a range among bin values from 15% to 100%.
Abstract translation: 背光（10）包括形成光循环腔（16）的前后反射器（12,14）和设置成将光发射到光再循环腔中的一个或多个光源构件（24a，24b，24c）。 前反射器（12）部分反射以提供输出照明区域。 前反射器（12）具有蓝色倾斜的透射光谱，在正常入射处具有15％至100％的箱体值之间的范围。
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公开(公告)号：WO2012054319A1
公开(公告)日：2012-04-26
申请号：PCT/US2011/056255
申请日：2011-10-14
Applicant: 3M INNOVATIVE PROPERTIES COMPANY , COGGIO, William D. , STEINER, Michael L. , LIU, Tao , LIU, Lan H.
Inventor： COGGIO, William D. , STEINER, Michael L. , LIU, Tao , LIU, Lan H.
CPC classification number: G02B5/0242 , G02B1/11 , G02B2207/107
Abstract: An optical diffuser layer includes a binder, a plurality of metal oxide particles dispersed in the binder, and a plurality of interconnected voids. A plurality of haze generating particles are dispersed in the binder. The optical diffuser layer has an effective refractive index of 1.3 or less.
Abstract translation: 光学漫射层包括粘合剂，分散在粘合剂中的多个金属氧化物颗粒和多个互连的空隙。 多个雾化产生颗粒分散在粘合剂中。 光漫射层的有效折射率为1.3以下。
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公开(公告)号：WO2010062485A1
公开(公告)日：2010-06-03
申请号：PCT/US2009/060308
申请日：2009-10-12
Applicant: 3M INNOVATIVE PROPERTIES COMPANY , WHEATLEY, John, A. , LIU, Tao
Inventor： WHEATLEY, John, A. , LIU, Tao
IPC: G02F1/13357 , G02F1/1335
CPC classification number: G09F13/04 , G02B6/0035 , G02B6/0058 , G02B6/0096 , G02F1/133605 , G02F1/133606 , G02F1/133615 , G02F1/13362 , G09F13/14
Abstract: A backlight that includes a front reflector and a back reflector that form a hollow light recycling cavity including an output surface is disclosed. The backlight also includes a semi-specular element, and a light extraction element disposed within the hollow cavity. The light extraction element has a gradient specularity. The backlight also includes one or more light sources disposed to inject light into the hollow light recycling cavity, where the one or more light sources are configured to inject light over a limited angular range.
Abstract translation: 公开了一种包括形成包括输出表面的中空光循环腔的前反射器和后反射器的背光源。 背光还包括半镜面元件和设置在中空腔内的光提取元件。 光提取元件具有梯度镜面。 背光还包括设置成将光注入中空光循环腔中的一个或多个光源，其中一个或多个光源被配置为在有限的角度范围内注入光。
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8.发明申请BACKLIGHTS HAVING SELECTED OUTPUT LIGHT FLUX DISTRIBUTIONS AND DISPLAY SYSTEMS USING SAME 审中-公开具有所选输出光通量分配的备份和使用相同的显示系统
公开(公告)号：WO2009105450A1
公开(公告)日：2009-08-27
申请号：PCT/US2009/034369
申请日：2009-02-18
Applicant: 3M INNOVATIVE PROPERTIES COMPANY , WHEATLEY, John A. , MEIS, Michael A. , BIERNATH, Rolf W. , WATSON, Philip E. , LIU, Tao
Inventor： WHEATLEY, John A. , MEIS, Michael A. , BIERNATH, Rolf W. , WATSON, Philip E. , LIU, Tao
IPC: F21V8/00
CPC classification number: G02B6/0046 , G02B6/0051 , G02B6/0053 , G02B6/0096
Abstract: A backlight that includes a front reflector (120) and a back reflector (130) that form a hollow light recycling cavity including an output surface (104) is disclosed. At least a portion of the back reflector is non-parallel to the front reflector. The backlight also includes at least one semi-specular element disposed within the hollow light recycling cavity, and one or more light sources (140) disposed to emit light into the hollow light recycling cavity, where the one or more light sources are configured to emit light into the hollow light recycling cavity over a limited angular range.
Abstract translation: 公开了一种包括形成包括输出表面（104）的空心光循环腔的前反射器（120）和后反射器（130）的背光源。 后反射器的至少一部分不平行于前反射器。 背光还包括设置在中空光循环腔内的至少一个半镜面元件，以及设置成将光发射到中空光循环腔中的一个或多个光源（140），其中一个或多个光源被配置为发射 在有限的角度范围内将光照射进空心光循环腔。
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9.发明申请
公开(公告)号：WO2022144633A1
公开(公告)日：2022-07-07
申请号：PCT/IB2021/061259
申请日：2021-12-02
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： HEBRINK, Timothy J. , WHEATLEY, John A. , ACHARYA, Bharat R. , LIU, Tao
IPC: A61L2/10 , A61L2/24 , B32B7/12 , B32B27/08 , B32B27/18 , B32B27/28 , B32B27/30 , B32B27/32 , G02B1/14 , G02B5/20 , G02B5/28
Abstract: Devices (100, 200, 300) are provided, including an article (110, 210, 310) shaped to form a recycling light cavity (116, 216, 316), a UVC light source (120, 220, 320), and an electronic display (130, 230, 330). The recycling light cavity (116, 216, 316) is disposed on at least a portion of the electronic display (130, 230, 330). The article (110, 210, 310) includes an ultraviolet mirror (5) containing at least a plurality of alternating first and second optical layers (12A, 13A, 12B, 13B, 12N, 13N). The ultraviolet mirror (5) reflects ultraviolet light directed towards the ultraviolet mirror (5) from the UVC light source (120, 220, 320) in a wavelength range from 190 nm to 290 nm and transmits visible light in a wavelength range from 380 nm to 800 nm. Systems (100, 200, 300) are also provided including the article (110, 210, 310), a portable electronic device, and a UVC light source (120, 220, 320). Methods of disinfecting are further provided, including obtaining a device or system (100, 200, 300), directing UVC light at the ultraviolet mirror (5), and exposing the ultraviolet mirror (54) to ultraviolet light in a wavelength range from 190 nm to 290 nm.
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公开(公告)号：WO2022144625A1
公开(公告)日：2022-07-07
申请号：PCT/IB2021/060889
申请日：2021-11-23
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： HEBRINK, Timothy J. , WHEATLEY, John A. , ACHARYA, Bharat R. , LIU, Tao , MAKI, Stephen P. , BENOIT, Gilles J.B. , SWEETNAM, Sean M.
Abstract: A device including a housing that is substantially impermeable to ultraviolet radiation having a wavelength of from 280 nm to 400 nm, and at least one window defined in the housing, the window including a UV-C radiation band-pass mirror film having a multiplicity of alternating first and second optical layers collectively transmitting UV-C radiation at a wavelength from at least 100 nm to less than 280 nm and not transmitting UV-A and UV-B radiation at a wavelength of from 280 nm to 400 nm, and an ultraviolet radiation source positioned within the housing, the ultraviolet radiation source being capable of emitting ultraviolet radiation at one or more wavelength from 100 nm to 400 nm. The device optionally further includes an ultraviolet mirror film positioned within the housing so as to reflect ultraviolet radiation emitted by the ultraviolet radiation source. A method of disinfecting a material is also disclosed.
