公开(公告)号：US07359605B2

公开(公告)日：2008-04-15

申请号：US10474073

申请日：2002-03-26

申请人： Walter Heitmann

发明人： Walter Heitmann

IPC分类号： G02B6/10

CPC分类号： C03C10/00 ,  B82Y20/00 ,  C30B5/00 ,  C30B29/60 ,  G02B6/1225

摘要： A photonic crystal is a three-dimensional dielectric structure which is opaque to electro-magnetic radiation within a given wavelength irrespective of the direction of incidence. The photonic crystal may include, for instance, a matrix-type arrangement of free-standing dielectric micro-columns or cylinders having small diameters. The micro-columns or cylinders are placed on a substrate whose thermal expansion coefficient between 60° C. and 85° C. is at least 50% lower than the thermal expansion coefficients of quartz glass, enabling the thermal expansion of the substrate to be kept to a minimum even when high temperature variations occur. The distance between the micro-columns supported by the substrate or the microcylinders of the photonic crystal varies only to a small amount. The optical characteristics are essentially more stable than those of photonic crystals with a quartz glass substrate. Glass ceramics or, for example, Zerodur® may be used as a substrate.

摘要翻译： 光子晶体是三维电介质结构，其对于给定波长内的电磁辐射是不透明的，而与入射方向无关。 光子晶体可以包括例如具有小直径的独立电介质微柱或圆柱体的矩阵型布置。 微柱或圆柱体放置在基底上，其热膨胀系数在60℃和85℃之间比石英玻璃的热膨胀系数低至少50％，使得能够保持基底的热膨胀 即使发生高温变化，也达到最小值。 由基板或光子晶体的微圆柱支撑的微柱之间的距离仅变化很小。 光学特性基本上比具有石英玻璃衬底的光子晶体更稳定。 玻璃陶瓷或例如Zerodur可以用作基底。

公开(公告)号：US5324732A

公开(公告)日：1994-06-28

申请号：US980177

申请日：1992-11-23

申请人： Uwe Schoen ,  Walter Heitmann ,  Uwe Maetzel

发明人： Uwe Schoen ,  Walter Heitmann ,  Uwe Maetzel

IPC分类号： A61K31/435 ,  A61K31/439 ,  A61K31/445 ,  A61K31/495 ,  A61K31/4995 ,  A61P7/10 ,  A61P9/00 ,  C07C57/15 ,  C07D471/08 ,  C07D471/10 ,  C07D451/14

CPC分类号： C07D471/10 ,  C07C57/15

摘要： 1.5 Fumaric acid salts of N,N'-di-lower alkyl-substituted 9,9-alkylene-3,7-diazabicyclo[3.3.1 ]nonanes and a process for obtaining them in stoichiometrically pure and virtually non-hygroscopic form.

摘要翻译： 1.5 N，N'-二低级烷基取代的9,9-亚烷基-3,7-二氮杂双环[3.3.1]壬烷的富马酸盐及其以化学计量纯度和实际上不吸湿形式获得的方法。

公开(公告)号：US5175347A

公开(公告)日：1992-12-29

申请号：US801658

申请日：1991-12-02

申请人： Walter Heitmann ,  Uwe Maetzel

发明人： Walter Heitmann ,  Uwe Maetzel

IPC分类号： C07C31/137

CPC分类号： C07C31/137

摘要： A process for preparing cis-dihydronopol and esters thereof in which corresponding esters of (-)nopol are stereoselectively hydrogenated by heterogeneous hydrogenation in the presence of a platinum, platinum oxide or ruthenium/carbon catalyst, and the resulting cis-dihydronopyl esters optionally may be converted into corresponding alcohols by hydrolysis.

摘要翻译： 制备顺式 - 二氢吗啉醇及其酯的方法，其中通过在铂，氧化铂或钌/碳催化剂存在下通过非均相氢化立体选择氢化（ - ）咔唑的相应酯，并且所得顺式 - 二氢吗啉酯任选地可以是 通过水解转化为相应的醇。

公开(公告)号：US4915474A

公开(公告)日：1990-04-10

申请号：US277249

申请日：1988-11-29

申请人： Karl F. Klein ,  Walter Heitmann

发明人： Karl F. Klein ,  Walter Heitmann

IPC分类号： G02B6/00 ,  C03C13/04 ,  G02B6/02 ,  G02B6/10 ,  G02B6/44

CPC分类号： G02B6/102 ,  G02B6/4439

摘要： A transmission line for optical radiation is disclosed, which has at least one optical fiber with core and cladding. The core consists of vitreous synthetic silicon dioxide, and the cladding of bitreous synthetic silicon dioxide doped with boric oxide and/or fluorine. The fiber is cooled over substantially its entire length to a temperature below 220 K. for the transmission of optical radiation in the wavelength range from 160 to 300 nm. Such transmission lines are used in spectroscopy, in machining processes, in medicine and chemical processes, and for biological purposes.

摘要翻译： 公开了一种用于光辐射的传输线，其具有至少一个具有芯和包层的光纤。 核心由玻璃质合成二氧化硅和掺杂有氧化硼和/或氟的混合合成二氧化硅的包层组成。 将纤维基本上在其整个长度上冷却到低于220K的温度，以便在160nm至300nm的波长范围内传输光学辐射。 这种传输线用于光谱学，加工过程，医学和化学过程以及生物学目的。

公开(公告)号：US2802471A

公开(公告)日：1957-08-13

申请号：US30780352

申请日：1952-09-04

申请人： WALTER HEITMANN

发明人： WALTER HEITMANN

IPC分类号： A24B7/14

CPC分类号： A24B7/14

公开(公告)号：US06490399B1

公开(公告)日：2002-12-03

申请号：US09403476

申请日：2000-07-11

申请人： Walter Heitmann ,  Karl-Friedrich Klein

发明人： Walter Heitmann ,  Karl-Friedrich Klein

IPC分类号： G02B600

CPC分类号： C03C4/0071 ,  C03C3/06 ,  C03C2201/06 ,  C03C2201/31 ,  G02B6/02

摘要： Optical waveguides made of quartz glass with reduced infrared absorption and reduced attenuation coefficients are made of glass material composed of atoms having mass numbers higher than that of the natural isotope distribution. The quartz glass or doped quartz glass is made of silicon atoms, of which most or all have the mass numbers 29 and/or 30, as well as of oxygen atoms, of which most or all are composed of isotopes with the mass numbers 17 and/or 18. Atoms of the 76Ge isotope are preferably used for doping with germanium atoms having higher mass numbers than in the natural isotope mixture. Glass with atoms of preferably 30Si and/or 18O are preferably used for optical waveguides based on quartz glass having attenuation coefficients below 0.15 dB/km. As indicated, such optical waveguides are also suitable for transmitting high-energy, pulsed or continuous laser light in a wavelength range from 2.0 to 3.0 &mgr;m. These optical waveguides are also suitable for transmitting holmium laser light at 2.1 &mgr;m and Er laser light with a wavelength of 2.79 and 2.94 &mgr;m.

摘要翻译： 由石英玻璃制成的光波导具有降低的红外吸收和减小的衰减系数由由质子数高于天然同位素分布的原子组成的玻璃材料制成。 石英玻璃或掺杂的石英玻璃由硅原子制成，其大部分或全部具有质量数29和/或30以及氧原子，其中大部分或全部由质量数17的同位素组成， /或18.76Ge同位素的原子优选用于掺杂质子数高于天然同位素混合物的锗原子。 具有优选30Si和/或18O原子的玻璃优选用于基于衰减系数低于0.15dB / km的石英玻璃的光波导。 如所指出的，这种光波导也适用于在2.0-3.0μm的波长范围内传输高能，脉冲或连续的激光。 这些光波导也适用于传输波长为2.79和2.94 mum的2.1 mum的钬激光和Er激光。

公开(公告)号：US6041156A

公开(公告)日：2000-03-21

申请号：US143132

申请日：1998-08-28

申请人： Walter Heitmann

发明人： Walter Heitmann

IPC分类号： G02B6/26 ,  G02B6/42 ,  G02B6/00

CPC分类号： G02B6/4204 ,  G02B6/26

摘要： An optical connection between optical fibers and an optical window exhibits improved long-term stability and improved measuring accuracy due to substantial transmission constancy. The surface of the optical window is coated with a thin, absorption-free coating of very hard material, thereby substantially improving the scratch resistance. The thickness of the protective coating is sized so that interfering reflection losses caused by differences in refraction indices may be avoided. The hardness of the protective coating is greater than that of the material of the optical window and its optical thickness is small in relation to the operating wavelength. The coating may be applied using ion-based, ion-beam dispersion, or microplasma methods.

摘要翻译： 光纤和光学窗口之间的光学连接表现出改善的长期稳定性和改进的测量精度，这是由于实质的传输稳定性。 光学窗口的表面涂覆有非常硬的材料的薄的无吸收涂层，从而显着地改善耐擦伤性。 保护涂层的厚度的尺寸使得可以避免由折射率差引起的干涉反射损失。 保护涂层的硬度大于光学窗口材料的硬度，其光学厚度相对于工作波长较小。 涂层可以使用离子型，离子束分散或微质等方法进行。

公开(公告)号：US5291514A

公开(公告)日：1994-03-01

申请号：US731112

申请日：1991-07-15

申请人： Walter Heitmann ,  David Waters

发明人： Walter Heitmann ,  David Waters

IPC分类号： F27B9/40 ,  F27D99/00 ,  G05D23/22 ,  H05B3/64

CPC分类号： F27D99/0006 ,  F27B9/40 ,  G05D23/1934 ,  G05D23/22

摘要： A method and apparatus for automatically and dynamically tuning individual heater segments of a multi-zone furnace which allows simultaneous minimization of temperature gradients within the furnace and prevention of premature aging and failure of the segments by controlling the relative temperatures thereof and equalization of the contributions of the segments to the heating of the furnace. Furnace and heater temperatures are monitored and furnace temperatures are used to develop set point biases for automatic control of heater segment temperatures. Some segments are also controlled as a function of power applied to other segments. Temperatures sensed within the furnace are combined such as by averaging to effectively provide virtual sensors in locations where sensors cannot otherwise be practically provided.

摘要翻译： 一种用于自动和动态地调整多区域炉的各个加热器段的方法和装置，其允许同时最小化炉内的温度梯度并通过控制段的相对温度和分配的均匀性来防止段的过早老化和失效 炉子加热段。 监测炉子和加热器温度，并使用炉温来开发用于自动控制加热器段温度的设定点偏差。 一些段也作为施加到其他段的功率的函数来控制。 在炉内感测到的温度通过平均来组合，以便在不能实际提供传感器的位置有效地提供虚拟传感器。

公开(公告)号：US06786991B1

公开(公告)日：2004-09-07

申请号：US09937927

申请日：2001-12-04

申请人： Walter Heitmann

发明人： Walter Heitmann

IPC分类号： B65H8100

CPC分类号： B29C71/04 ,  B29C35/0805 ,  B29C35/0866 ,  B29C53/562 ,  B29C2035/0877 ,  G02B6/02038

摘要： A method for manufacturing preforms for polymer optical fibers having an index of refraction that is variable over the radius, in which a core of preform material is coated with coating material for forming the preform until a predefinable diameter is reached, the refractive index of the coating material being varied in conformance with a predefinable profile along the radius of the emerging preform.

摘要翻译： 一种用于制造聚合物光纤的预成型件的方法，其具有在半径上可变的折射率，其中预成型材料的芯被涂覆有用于形成预成型件的涂层材料，直到达到可预定直径，涂层的折射率 材料沿着出现的预制件的半径与预定义的轮廓一致。

公开(公告)号：US06760513B1

公开(公告)日：2004-07-06

申请号：US09937579

申请日：2001-12-20

申请人： Walter Heitmann ,  Hans W. P. Koops

发明人： Walter Heitmann ,  Hans W. P. Koops

IPC分类号： G02B634

CPC分类号： G02B6/29394 ,  B82Y20/00 ,  G02B6/12007 ,  G02B6/1225 ,  H04B10/25133

摘要： The present invention is directed to an economical approach for compensating for the dispersion of optical signals having different wavelengths. In accordance with the present invention, photonic crystals (K1-Kn) are positioned on a common optical waveguide (2). In this context, each photonic crystal (K1-Kn) is tuned to reflect or deflect the signals of one wavelength and to transmit the signals of other wavelengths, unattenuated. The specific arrangement of the photonic crystals (K1-Kn) on the waveguide (2) and the specific arrangement of the deflecting elements in the photonic crystal are defined, in the process, as a function of the dispersion to be compensated for between the individual wavelengths. The approach of the present invention makes it possible to assemble permanently set or controllable photonic dispersion compensators of a high quality, which are approximately 1000 times shorter than conventional diffraction gratings.

摘要翻译： 本发明涉及用于补偿具有不同波长的光信号的色散的经济方法。根据本发明，光子晶体（K1-Kn）位于公共光波导（2）上。 在这种情况下，每个光子晶体（K1-Kn）被调谐以反射或偏转一个波长的信号并且传输其它波长的信号，而不是衰减的。 光子晶体（K1-Kn）在波导（2）上的具体布置以及光子晶体中的偏转元件的具体布置被定义为在该过程中作为待个体之间补偿的色散的函数 本发明的方法使得可以组装高质量的永久设置或可控的光子色散补偿器，其比常规衍射光栅近约1000倍。