Perforated acoustical attenuators
    4.
    发明授权
    Perforated acoustical attenuators 失效
    穿孔声衰减器

    公开(公告)号:US5504281A

    公开(公告)日:1996-04-02

    申请号:US184646

    申请日:1994-01-21

    CPC分类号: H04R1/02

    摘要: The invention provides an acoustical attenuator comprising:a porous material comprised of particles sintered and/or bonded together at their points of contact, having at least a portion of pores continuously connected, wherein said porous material has an interstitial porosity of about 20 to about 60 percent, an average pore diameter of about 5 to about 280 micrometers, a tortuosity of about 1.25 to about 2.5, a density of about 5 to about 60 pounds per cubic foot, a modulus of about 12,000 pounds per square inch or above, wherein said porous material has at least one through hole and wherein said interstitial porosity, average pore diameter, density and modulus values are for the porous material in the absence of any through holes, wherein the average diameter of the through hole is greater than the average pore diameter.

    摘要翻译: 本发明提供了一种声衰减器,其包括:多孔材料,由在其接触点处烧结和/或结合在一起的颗粒组成,其中至少一部分孔连续连接,其中所述多孔材料具有约20至约60的间隙孔隙率 约5至约280微米的平均孔径,约1.25至约2.5的弯曲度,约5至约60磅/立方英尺的密度,约12,000磅/平方英寸或更高的模量,其中所述 多孔材料具有至少一个通孔,并且其中所述间隙孔隙率,平均孔径,密度和模量值是在不存在任何通孔的情况下用于多孔材料,其中通孔的平均直径大于平均孔径 。

    OPTICAL ELEMENTS FOR SHOWING VIRTUAL IMAGES
    5.
    发明申请
    OPTICAL ELEMENTS FOR SHOWING VIRTUAL IMAGES 审中-公开
    用于显示虚拟图像的光学元件

    公开(公告)号:US20110109965A1

    公开(公告)日:2011-05-12

    申请号:US13001983

    申请日:2009-06-16

    IPC分类号: G02B27/22

    CPC分类号: G02B27/2214 H04N13/305

    摘要: A virtual image display device has a lens array and a virtual image substrate disposed behind the lens array. The virtual image substrate is provided with a virtual image pattern registered to lenses of the lens array. In some embodiments the virtual image pattern can include grey scale information, where the grey scale information includes information in at least one of color and shape. In a static virtual image substrate, the virtual image information can include pixels of at least two different colors. An optical mask can have a virtual image pattern arranged so that a virtual image of an object appears to a viewer when a lens array is applied to the mask. In other embodiments, an optical mask can include an intermediate virtual image pattern containing information for manufacturing a virtual image substrate.

    摘要翻译: 虚拟图像显示装置具有设置在透镜阵列后面的透镜阵列和虚拟图像基板。 虚拟图像基板设置有注册到透镜阵列的透镜的虚拟图像图案。 在一些实施例中,虚拟图像图案可以包括灰度信息,其中灰度信息包括颜色和形状中的至少一个中的信息。 在静态虚拟图像基板中,虚拟图像信息可以包括至少两种不同颜色的像素。 光学掩模可以具有虚拟图像图案,其布置成使得当将透镜阵列应用于掩模时,对象的虚拟图像出现在观看者身上。 在其他实施例中,光学掩模可以包括包含用于制造虚拟图像基板的信息的中间虚拟图像图案。

    Process for making light guides with extraction structures and light guides produced thereby
    6.
    发明授权
    Process for making light guides with extraction structures and light guides produced thereby 有权
    用于制造具有提取结构的光导和由此产生的光导的方法

    公开(公告)号:US07941013B2

    公开(公告)日:2011-05-10

    申请号:US12299955

    申请日:2007-05-17

    IPC分类号: G02B6/26 F21V7/04 F21V7/22

    摘要: A process comprises imagewise exposing at least a portion of a photoreactive composition to light sufficient to cause simultaneous absorption of at least two photons/thereby inducing at least one acid- or radical-initiated chemical reaction where the composition is exposed to the light, the imagewise exposing being carried out in a pattern that is effective to define at least the surface of a plurality of light extraction structures. Each one of the array of light extraction structures has at least one shape factor; the shape factor may vary across the array. At least one light extraction structure may have the geometric configuration of a truncated asphere.

    摘要翻译: 一种方法包括使光反应性组合物的至少一部分成像曝光至足以引起同时吸收至少两个光子的光,从而诱导至少一种酸或自由基引发的化学反应,其中组合物暴露于光,成像 以能够至少限定多个光提取结构的表面的图案进行曝光。 光提取结构阵列中的每一个具有至少一个形状因子; 形状因子可能会在阵列上变化。 至少一个光提取结构可以具有截顶的非球面的几何构型。

    Optical sheets suitable for spreading light
    7.
    发明授权
    Optical sheets suitable for spreading light 有权
    适合散光的光学片

    公开(公告)号:US06456437B1

    公开(公告)日:2002-09-24

    申请号:US09646363

    申请日:2000-09-14

    IPC分类号: G02B2710

    摘要: An optical sheet (25) for spreading light has a substantially smooth surface (27), and a structured surface (28) comprising an array of prisms (30, 31). A beam of light that is to be spread is directed through the film from the smooth surface. Some of the prisms (termed “refraction prisms”) deviate normally-incident light only by refraction at a prism facet as the light leaves the film while others (termed “reflection prisms”) deviates normally-incident light by total internal reflection within the prism before the light leaves the film. There are a plurality of reflection prisms (30) selected to deviate normally-incident light through different angles and a plurality of refraction prisms (31) selected to deviate the normally-incident light through different angles, and they are arranged, preferably in a non-ordered manner, so that successive reflection prisms are separated by at least one refraction prism. In alternative embodiments, the structured surface comprises a non-ordered arrangement of a plurality of reflection prisms selected to deviate normally-incident light through different angles, or a non-ordered arrangement of a plurality of refraction prisms selected to deviate normally-incident light through different angles.

    摘要翻译: 用于扩散光的光学片(25)具有基本平滑的表面(27)和包括棱镜阵列(30,31)的结构化表面(28)。 待铺展的光束从光滑的表面引导穿过胶片。 一些棱镜(称为“折射棱镜”)在光离开膜时仅通过棱镜上的折射而偏离正常入射光,而另一些(称为“反射棱镜”)则通过棱镜内部的全内反射使正常入射光偏离正常入射光 在光离开电影之前。 选择多个反射棱镜(30),其被选择为偏转正常入射的光通过不同的角度,并且多个折射棱镜(31)被选择以使正常入射的光偏转通过不同的角度,并且它们优选地布置在非 使得连续的反射棱镜被至少一个折射棱镜分开。 在替代实施例中,结构化表面包括多个反射棱镜的非有序排列,该多个反射棱镜被选择为通过不同角度偏离正常入射光,或者选择多个折射棱镜的非有序排列,以偏离正常入射光通过 不同角度

    Light redirecting film laminate
    8.
    发明授权
    Light redirecting film laminate 有权
    光重新定向薄膜层压板

    公开(公告)号:US09244206B2

    公开(公告)日:2016-01-26

    申请号:US13514429

    申请日:2010-12-14

    IPC分类号: G02B5/20 G02B5/04 E06B9/00

    摘要: Light management film constructions contain a first optical film having a first major surface and a second major surface opposite the first major surface. The first major surface is a microstructured surface with asymmetrical structures. The asymmetrical structures form an ordered arrangement of a plurality of multi-sided refractive prisms, with the multi-sided refractive prisms having a cross section of 3 or greater sides. A second optical film contacts and is bonded to substantially all of the structures of the first major structured surface of the first optical film. The light management constructions can be incorporated into optical articles such as windows.

    摘要翻译: 光管理膜结构包含具有第一主表面和与第一主表面相对的第二主表面的第一光学膜。 第一个主要表面是具有不对称结构的微结构表面。 不对称结构形成多个多边折射棱镜​​的有序布置,多边折射棱镜​​具有3或更大的侧面的横截面。 第二光学膜与第一光学膜的第一主要结构化表面的基本上所有的结构接触并接合。 光管理结构可以结合到诸如窗户的光学制品中。

    Hybrid light redirecting and light diffusing constructions
    9.
    发明授权
    Hybrid light redirecting and light diffusing constructions 有权
    混合光重定向和光漫射结构

    公开(公告)号:US08995059B2

    公开(公告)日:2015-03-31

    申请号:US14008372

    申请日:2012-03-12

    摘要: Solar light redirecting glazing units include light redirecting and light diffusing constructions. The solar light redirecting glazing units may include a glazing substrate, a visible light diffusing layer, and a light redirecting layer oriented such that incoming solar light contacts the visible light diffusing layer before contacting the light redirecting layer. The solar light redirecting glazing units may include a glazing substrate, a patterned visible light diffusing layer, and a light redirecting layer. The solar light redirecting glazing units may include two glazing substrates separated by an intervening space with a solar light redirecting layer disposed on one glazing substrate, and a visible light diffusing layer disposed on the other glazing substrate.

    摘要翻译: 太阳能灯重新定向上光单元包括光重定向和光漫射结构。 太阳光重新定向玻璃单元可以包括玻璃基板,可见光漫射层和取向为使得入射的太阳光在接触光重定向层之前接触可见光漫射层的光重定向层。 太阳光重新定向的玻璃窗单元可以包括玻璃基板,图案化的可见光漫射层和光重定向层。 太阳光重新定向玻璃单元可以包括由设置在一个上釉基板上的太阳光重定向层与中间空间隔开的两个玻璃基板,以及设置在另一个玻璃基板上的可见光漫射层。

    Processes for producing optical elements showing virtual images
    10.
    发明授权
    Processes for producing optical elements showing virtual images 有权
    用于产生显示虚拟图像的光学元件的过程

    公开(公告)号:US08857028B2

    公开(公告)日:2014-10-14

    申请号:US13002118

    申请日:2009-06-16

    摘要: A virtual image (VI) device displays an image that appears to lie above or below the plane of the device. A method of manufacturing a VI display device includes calculating an initial VI flux pattern based on an object and then fabricating a substrate having a VI array pattern based on the initial VI flux pattern. A plurality of lenses may then be applied over the VI array pattern. The VI substrate may be static or dynamic, and may show grey scale information. A photomask may be used as an intermediate element in the manufacture of the VI substrate, or may act as the VI substrate itself. A method of producing the initial VI flux pattern includes virtually tracing rays generated by different points of the object to an image plane and ii) summing the rays from the different points. The rays may be traced through a lens array.

    摘要翻译: 虚拟图像(VI)设备显示出似乎位于设备平面之上或之下的图像。 一种制造VI显示装置的方法包括基于物体计算初始VI通量图形,然后基于初始VI通量图来制造具有VI阵列图案的基板。 然后可以在VI阵列图案上施加多个透镜。 VI基板可以是静态的或动态的,并且可以显示灰度信息。 可以将光掩模用作制造VI基板的中间元件,或者可以作为VI基板本身。 产生初始VI通量图案的方法包括将物体的不同点产生的光线实际上跟踪到图像平面,以及ii)对来自不同点的光线求和。 可以通过透镜阵列追踪光线。