Infrared reflective optical interference film
    42.
    再颁专利
    Infrared reflective optical interference film 失效
    红外反射光学干涉膜

    公开(公告)号:USRE34605E

    公开(公告)日:1994-05-10

    申请号:US989303

    申请日:1992-12-11

    CPC分类号: G02B5/282 G02B1/04 G02B5/305

    摘要: The present invention provides an optical interference film, made of multiple layers of polymers, which reflects wavelengths of light in the infrared region of the spectrum while being substantially transparent to wavelengths of light in the visible spectrum. The optical interference film includes multiple alternating layers of at least first, second, and third diverse, substantially transparent polymeric materials A, B, and C, with the layers being of an optical thickness of between about 0.09 and 0.45 micrometers. Each of the polymeric materials has a different index of refraction, n.sub.i, and the refractive index of the second polymeric material is intermediate the respective refractive indices of the first and third polymeric materials.

    摘要翻译: 本发明提供一种由多层聚合物制成的光学干涉膜,其反射光谱的红外区域中的光的波长,同时对可见光谱中的波长的波长基本上是透明的。 光学干涉膜包括至少第一,第二和第三不同的,基本上透明的聚合物材料A,B和C的多个交替层,其中光学厚度在约0.09至0.45微米之间。 每个聚合物材料具有不同的折射率ni,并且第二聚合物材料的折射率介于第一和第三聚合物材料的相应折射率之间。

    Multicomponent, multilayer polymeric reflective bodies
    43.
    发明授权
    Multicomponent, multilayer polymeric reflective bodies 失效
    多组分多层聚合物反射体

    公开(公告)号:US5262894A

    公开(公告)日:1993-11-16

    申请号:US833272

    申请日:1992-02-10

    摘要: A multicomponent, multilayered, highly reflective polymeric body which is thermoformable and capable of being fabricated into films, sheets and a variety of parts while maintaining a uniform reflective appearance is provided. The reflective polymeric body includes at least first, second, and third diverse polymeric materials having a sufficient number of alternating layers of the polymeric materials such that a portion of the light incident on the body is reflected. A sufficient number of the individual layers of the body have optical thicknesses of not more than 0.09 micrometers or not less than 0.45 micrometers, such that there is an absence of visibly perceived color in the body. The polymeric materials having the highest and lowest refractive indices differ from each other in refractive index by at least about 0.03. The reflective body may be fabricated into mirrors, noncorroding metallic appearing articles and parts, reflectors, reflective lenses, and the like.

    摘要翻译: 提供了一种多组分,多层,高反射的聚合物体,其可热成型并且能够制造成膜,片和各种部件,同时保持均匀的反射外观。 反射聚合物主体包括至少第一,第二和第三种不同的聚合物材料,其具有足够数量的聚合材料的交替层,使得入射到体上的光的一部分被反射。 身体的足够数量的各个层具有不大于0.09微米或不小于0.45微米的光学厚度,使得在体内不存在明显感知的颜色。 具有最高和最低折射率的聚合物材料的折射率彼此不同,至少约0.03。 反射体可以制成镜子,非腐蚀的金属出现的物品和部件,反射器,反射镜等。

    Backlights having selected output light flux distributions and display systems using same
    47.
    发明授权
    Backlights having selected output light flux distributions and display systems using same 有权
    具有选择的输出光通量分布的背光和使用其的显示系统

    公开(公告)号:US09541698B2

    公开(公告)日:2017-01-10

    申请号:US12918549

    申请日:2009-02-18

    IPC分类号: F21V7/04 F21V8/00

    摘要: 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.

    摘要翻译: 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回收腔。

    Immersed asymmetric reflector with reduced color
    49.
    发明授权
    Immersed asymmetric reflector with reduced color 有权
    浸没的不对称反射体具有降低的颜色

    公开(公告)号:US09057843B2

    公开(公告)日:2015-06-16

    申请号:US13501860

    申请日:2010-10-22

    摘要: A film construction (610) includes a group of microlayers that reflect normally incident light polarized along a first axis more than normally incident light polarized along a second axis. The microlayers are arranged into optical repeat units (ORUs) that have a layer thickness distribution along a thickness axis perpendicular to the first and second axes that provides the group of microlayers with an intermediate reflectivity over an extended reflection band for a given incidence condition. The ORUs include thinner ORUs whose thicknesses are less than an average thickness, and thicker ORUs whose thicknesses are greater than the average thickness. The group of microlayers is optically immersed in a medium having a refractive index greater than air, such that “supercritical light” can propagate through the microlayers. The microlayers are oriented such that, on average, the thinner ORUs are closer than the thicker ORUs to an output surface of the construction. By “supercritical light” is meant that travels through the film at an angle that is more oblique than can be achieved by illumination from air using a flat, smooth air/film interface.

    摘要翻译: 膜结构(610)包括一组微层,其反射正常入射的光沿着第一轴偏振,而不是沿着第二轴偏振的正常入射光。 微层布置成光学重复单元(ORU),其具有沿着垂直于第一和第二轴线的厚度轴线的层厚度分布,其为给定的入射条件在延伸的反射带上提供中间反射率的微层。 ORU包括厚度小于平均厚度的更薄的ORU,以及厚度大于平均厚度的较厚ORU。 微组织光学地浸入折射率大于空气的介质中,使得“超临界光”可以传播通过微层。 微层的取向使得平均来说,更薄的ORU比较厚的ORU更接近于结构的输出表面。 “超临界光”是指以比通过使用平坦,平滑的空气/膜界面的空气照明可以实现的倾斜更倾斜的角度穿过膜。

    Light source and display system incorporating same
    50.
    发明授权
    Light source and display system incorporating same 有权
    光源与显示系统相结合

    公开(公告)号:US08922733B2

    公开(公告)日:2014-12-30

    申请号:US13502060

    申请日:2010-10-22

    IPC分类号: G02F1/1335 F21V8/00

    摘要: Light sources are disclosed. A disclosed light source includes an optically reflective cavity that includes an input port for receiving light and an output port for transmitting light, a lamp that is disposed at the input port, and an optical stack that is disposed at the output port. The optical stack includes a forward scattering optical diffuser that is disposed at the output port and has an optical haze that is not less than about 20%, and an optical film that is disposed on the optical diffuser. The optical film enhance total internal reflection at the interface between the optical film and the optical diffuser. The optical film has an index of refraction that is not greater than about 1.3 and an optical haze that is not greater than about 5%. The optical stack also includes a reflective polarizer layer that is disposed on the optical film. Substantial portions of each two neighboring major surfaces in the optical stack are in physical contact with each other.

    摘要翻译: 公开了光源。 所公开的光源包括光反射腔,其包括用于接收光的输入端口和用于传输光的输出端口,设置在输入端口处的灯以及设置在输出端口处的光学堆叠。 光学堆叠包括设置在输出端口并具有不小于约20%的光学雾度的前向散射光学漫射器,以及设置在光学漫射器上的光学膜。 光学膜增强了在光学膜和光学扩散器之间的界面处的全内反射。 光学膜的折射率不大于约1.3,光学雾度不大于约5%。 光学堆叠还包括设置在光学膜上的反射偏振器层。 光学堆叠中每两个相邻的主要表面的实质部分彼此物理接触。