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公开(公告)号：US09585548B2
公开(公告)日：2017-03-07
申请号：US13796397
申请日：2013-03-12
申请人： SCHOTT CORPORATION
发明人： William H. James, III , Elizabeth Chase , Mark J. Davis , Paula Vullo , Sally Pucilowski , Eric Hector Urruti
CPC分类号： A61B1/00165 , C03C3/089 , C03C3/093 , C03C11/005 , C03C13/046 , C03C2204/04 , G02B6/0008 , G02B6/0016 , G02B6/241
摘要： The invention relates to an optical scattering element suitable for dispersing or scattering light transmitted by optical device by Mie scattering. The optical scattering element comprises a phase-separated or porous borosilicate glass having dispersed phase particles with a particle size of 200 to 500 nanometers or pores with a size of 200 to 500 nanometers, at a number density of 108 to 1012 mm−3. The optical scattering element can be prepared by subjecting a borosilicate glass to a controlled heat treatment to induce phase separation, and then optionally leaching out one of the phases with an acid leach. The optical scattering element can be, for example, attached to an end of an optical fiber or bundle of optical fibers. The invention also relates to a method of dispersing or scattering light by transmitting the light through the optical scattering element.
摘要翻译： 本发明涉及一种适用于通过米氏散射散射或散射由光学器件透射的光的光学散射元件。 光学散射元件包括相分离或多孔硼硅酸盐玻璃，其具有200至500纳米的分散相颗粒或尺寸为200至500纳米的孔，数量密度为108至1012mm-3。 光散射元件可以通过使硼硅酸盐玻璃进行受控热处理以诱导相分离，然后任选地用酸浸出物浸出一相来制备。 例如，光散射元件可以附接到光纤或光纤束的一端。 本发明还涉及通过将光透过光散射元件来散射或散射光的方法。
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公开(公告)号：US11667579B2
公开(公告)日：2023-06-06
申请号：US16273738
申请日：2019-02-12
申请人： Schott Corporation
IPC分类号： C04B35/547 , G02B1/02 , C04B35/645 , C04B35/638 , H04N5/33
CPC分类号： C04B35/6455 , C04B35/547 , C04B35/638 , G02B1/02 , C04B2235/3284 , C04B2235/446 , C04B2235/5436 , C04B2235/5445 , C04B2235/656 , C04B2235/6562 , C04B2235/6567 , C04B2235/6581 , C04B2235/762 , C04B2235/786 , C04B2235/96 , C04B2235/9607 , C04B2235/9646 , C04B2235/9653 , H04N5/33
摘要： The invention relates to a polycrystalline IR transparent material produced by sintering chalcogenide powder, e.g., ZnS powder, using hot uniaxial pressing followed by hot isostatic pressing. The microstructure of the material described in this disclosure is much finer than that found in material produced using the state of the art process. By using a powder with a particle size fine enough to improve sintering behavior but coarse enough to prevent a lowering of the wurtzite-sphalerite transition temperature, a highly transparent material with improved strength is created without degrading the optical properties. A high degree of transparency is achieved during hot pressing by applying pressure after the part has reached a desired temperature. This allows some degree of plastic deformation and prevents rapid grain growth which can entrap porosity. The crystallographic twins created during this process further inhibit grain growth during hot isostatic pressing.
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公开(公告)号：US10246377B2
公开(公告)日：2019-04-02
申请号：US14958360
申请日：2015-12-03
申请人： Schott Corporation
IPC分类号： C04B35/645 , C04B35/547 , G02B1/02 , C04B35/638 , H04N5/33
摘要： The invention relates to a polycrystalline IR transparent material produced by sintering chalcogenide powder, e.g., ZnS powder, using hot uniaxial pressing followed by hot isostatic pressing. The microstructure of the material described in this disclosure is much finer than that found in material produced using the state of the art process. By using a powder with a particle size fine enough to improve sintering behavior but coarse enough to prevent a lowering of the wurtzite-sphalerite transition temperature, a highly transparent material with improved strength is created without degrading the optical properties. A high degree of transparency is achieved during hot pressing by applying pressure after the part has reached a desired temperature. This allows some degree of plastic deformation and prevents rapid grain growth which can entrap porosity. The crystallographic twins created during this process further inhibit grain growth during hot isostatic pressing.
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