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1. 发明授权

US4748614A Optical wavelength-multiplexing and/or demultiplexing device 失效
标题翻译：光波分复用和/或解复用装置
公开(公告)号：US4748614A
公开(公告)日：1988-05-31
申请号：US483470
申请日：1983-04-11
申请人： Hans Dammann , Ulrich Killat , Gert Rabe
发明人： Hans Dammann , Ulrich Killat , Gert Rabe
IPC分类号： G02B5/18 , G02B6/293 , G02B6/34 , H04B9/00
CPC分类号： G02B6/2931 , G02B5/1871 , G02B6/2938
摘要： The invention relates to an optical wavelength multiplexing and/or demultiplexing device. The device comprises a digital phase grating having at least four steps. The grating diffracts light of at least three different wavelengths in different central diffraction orders. Since the grating period may be high in comparison with the wavelengths light-emitting diodes may be used as light sources.
摘要翻译：本发明涉及一种光学波长复用和/或解复用装置。该装置包括具有至少四个步骤的数字相位光栅。光栅以不同的中心衍射级衍射至少三种不同波长的光。由于与波长相比，光栅周期可能高，可以将发光二极管用作光源。

2. 发明授权

US4362359A Coupling device for coupling signals into and out of a transmission glass-fiber 失效
标题翻译：用于将信号耦合到传输玻璃纤维中的耦合装置
公开(公告)号：US4362359A
公开(公告)日：1982-12-07
申请号：US141858
申请日：1980-04-21
申请人： Hans Dammann , Ulrich Killat
发明人： Hans Dammann , Ulrich Killat
IPC分类号： G02B6/293 , G02B6/34 , G02B27/42 , H04B10/25 , G02B5/172
CPC分类号： G02B6/4215 , G02B6/29307 , G02B6/2931 , G02B6/29311 , G02B6/2938 , H04B10/2503
摘要： A device for coupling a first optical signal of a first wavelength into a transmission glass-fiber and for coupling a second optical signal, which has a second wavelength which differs from the first wavelength, out of the fiber. The two signals travel in the transmission glass-fiber in opposite directions. The optical signals also travel in other, spatially separated glass fibers. The device includes an imaging device arranged between the transmission glass-fiber and the other glass fibers. In the pupil of the imaging device, a binary optical grating is disposed. Other glass fibers receive the second optical signals which have been diffracted into the diffractions orders of the grating.The grating is a phase grating and is arranged on an optical axis of the imaging device. It has a duty factor of at least substantially 1:1 as well as an optical path difference, H=(n-1)h, which is substantially(N-1)h=n.sub.1 .lambda..sub.I, where n.sub.1 =1, 2, 3, . . .and(N-1)h=(m.sub.1 +1/2).lambda..sub.k where m.sub.1 =0, 1, 2, . . . and k=II, III, . . .
摘要翻译：用于将第一波长的第一光信号耦合到透射玻璃纤维中并用于将具有与第一波长不同的第二波长的第二光信号耦合出光纤的装置。两个信号在传输玻璃纤维中沿相反方向行进。光信号也在其他空间分离的玻璃纤维中行进。该装置包括布置在透射玻璃纤维和其它玻璃纤维之间的成像装置。在成像装置的光瞳中，设置二元光栅。其他玻璃纤维接收已被衍射成光栅的衍射级的第二光信号。光栅是相位光栅，并且被布置在成像装置的光轴上。它具有至少基本上为1：1的占空因数以及基本上为（N-1）h =n1λI的光程差H =（n-1）h，其中n1 = 1,2， 3，。。。和（N-1）h =（m1 + 1/2）λk，其中m1 = 0,1,2。。。和k = II，III。。。

3. 发明授权

US4626069A Optical power divider 失效
标题翻译：光功率分配器
公开(公告)号：US4626069A
公开(公告)日：1986-12-02
申请号：US141857
申请日：1980-04-21
申请人： Hans Dammann , Ulrich Killat
发明人： Hans Dammann , Ulrich Killat
IPC分类号： G02B6/293 , G02B6/28 , G02B5/18 , G02B6/34
CPC分类号： G02B6/2848
摘要： An optical power divider for use with one incoming and a plurality of outgoing glass fibers includes an imaging device arranged on an optical axis between the incoming and outgoing glass fibers. At least one plane binary phase grating is disposed in the pupil of the imaging device. The grating is one-dimensional, has a duty factor of at least substantially 1:1, and has an optical path difference of at least substantiallyH=0.32.lambda.+n.lambda.or H'=0.5.lambda.+n.lambda.where n=0,1,2 . . . . The end of the incoming glass fiber is coaxial with the optical axis. The outgoing glass fibers are arranged in such a way that they receive the radiation which has been diffracted into the various diffraction orders of the phase grating. .lambda. is the wavelength of the radiation.
摘要翻译：用于一个输入和多个输出玻璃纤维的光功率分配器包括布置在进入和输出的玻璃纤维之间的光轴上的成像装置。在成像装置的光瞳中设置至少一个平面二进制相位光栅。光栅是一维的，具有至少基本上为1：1的占空因数，并且具有至少基本上H =0.32λ+nλ或H'=0.5λ+nλ的光程差，其中n = 0， 1,2。。。。入射玻璃纤维的端部与光轴同轴。输出的玻璃纤维被布置成使得它们接收被衍射成相位光栅的各种衍射级的辐射。 λ是辐射的波长。

4. 发明授权

US5240550A Method of forming at least one groove in a substrate layer 失效
标题翻译：在底层中形成最少一个槽的方法
公开(公告)号：US5240550A
公开(公告)日：1993-08-31
申请号：US757379
申请日：1991-09-10
申请人： Ralf-Dieter Boehnke , Hans Dammann , Gert Rabe
发明人： Ralf-Dieter Boehnke , Hans Dammann , Gert Rabe
IPC分类号： H01L21/302 , H01L21/3065 , H01L21/311
CPC分类号： H01L21/31116 , H01L21/31144
摘要： A groove is formed in a substrate layer by ion etching. The substrate layer comprises a top layer having an etch rate S1 and a bottom layer having a different etch rate S2, in which first, grooves are formed having an initial depth which differs from the desired depth, after which the etching process is carried out without using a mask until the desired depth of the groove is attained.
摘要翻译：通过离子蚀刻在衬底层中形成凹槽。衬底层包括具有蚀刻速率S1和底层具有不同蚀刻速率S2的顶层，其中首先形成具有不同于所需深度的初始深度的沟槽，之后进行蚀刻处理而没有使用掩模直到达到所需凹槽的深度。

5. 发明授权

US5029243A Device for working a workpiece using laser light 失效
标题翻译：使用激光加工工件的装置
公开(公告)号：US5029243A
公开(公告)日：1991-07-02
申请号：US407379
申请日：1989-09-14
申请人： Hans Dammann , Gert Rabe , Paul J. Patt , Christian H. F. Velzel , Klaus B. Schildbach
发明人： Hans Dammann , Gert Rabe , Paul J. Patt , Christian H. F. Velzel , Klaus B. Schildbach
IPC分类号： B23K26/06 , B23K1/005 , B23K26/067 , H05K3/34
CPC分类号： B23K26/0676 , B23K1/0056 , B23K26/067 , H05K3/3421 , H05K3/3494
摘要： A device for working a workpiece by means of laser light includes a laser, a beamsplitter for splitting the laserbeam into at least two sub-laserbeams of substantially identical intensities, and a control unit which controls the light intensity of the laser and the movement of a workpiece support and the laserbeam relative to each other. The beamsplitter includes at least one digital-phase grating which divides the laserbeam into a plurality of sub-laserbeams to produce a pattern of laser spots onto the workpiece.
摘要翻译：用于通过激光加工工件的装置包括激光器，用于将激光束分成至少两个基本上相同的强度的子激光束的分束器;以及控制单元，其控制激光的光强度和工件支撑件和激光束相对于彼此。分束器包括至少一个数字相位光栅，其将激光束分成多个子激光束，以在工件上产生激光斑点图案。

6. 发明授权

US4585307A Compound optical phase grating and switching devices comprising such a grating 失效
标题翻译：复合光相位光栅和包括这种光栅的开关装置
公开(公告)号：US4585307A
公开(公告)日：1986-04-29
申请号：US574775
申请日：1984-01-27
申请人： Hans Dammann , Heinrich Kurz
发明人： Hans Dammann , Heinrich Kurz
IPC分类号： G02B5/18 , G02B27/44
CPC分类号： G02B6/3546 , G02B27/4277 , G02B6/351
摘要： The invention relates to a compound blazed optical phase grating. The grating comprises at least two grating sections which are disposed opposite each other in parallel planes. The gratings have grooves which extend parallel to each other. The grating sections have equal grating periods and are movable relative to each other within their planes and perpendicular to the grooves. Over one grating period, the optical path length varies at least substantially parabolically and symmetrically relative to the grating period. The path length varies in such a manner that when both grating sections are symmetrically arranged relative to a common line perpendicular to the grating planes, the optical path length through the compound grating is uniform across the grating. Various optical switches and switching matrixes can be formed by using such compound phase gratings.
摘要翻译：本发明涉及复合闪耀光相位光栅。光栅包括在平行平面中相对设置的至少两个光栅部分。光栅具有彼此平行延伸的凹槽。光栅部分具有相同的光栅周期，并且可以在它们的平面内并且垂直于凹槽相对于彼此移动。在一个光栅周期上，光路长度相对于光栅周期至少基本上抛物线和对称地变化。路径长度以这样的方式变化：当两个光栅部分相对于与光栅平面垂直的公共线对称布置时，通过复合光栅的光路长度在整个光栅上是均匀的。可以通过使用这种复合相位光栅形成各种光开关和开关矩阵。

7. 发明授权

US5058971A Planar optical isolator 失效
标题翻译：平面光学隔离器
公开(公告)号：US5058971A
公开(公告)日：1991-10-22
申请号：US482142
申请日：1990-02-16
申请人： Hans-Jurgen Schmitt , Jurgen Seidenberg , Norbert Thorweihe , Hans Dammann , Volker Doormann , Jens-Peter Krumme
发明人： Hans-Jurgen Schmitt , Jurgen Seidenberg , Norbert Thorweihe , Hans Dammann , Volker Doormann , Jens-Peter Krumme
IPC分类号： G02B6/12 , G02B27/28 , G02F1/095
CPC分类号： G02F1/0955
摘要： The invention relates to a planar optical isolator having a magneto optical gyrotropic layer and an anisotropic birefringent layer which are proportioned so that the non-reciprocal rotation of polarisation of the light (Faraday rotation) resulting from the action of a magnetic field in the forward direction of the isolator is at least substantially negatively equal to the reciprocal rotation of polarisation as a result of the birefringence, so that a TE-mode in the forward direction is guided with low damping, measures being taken for the intensive attenuation of at least one TM-mode. An isolator having a high isolating effect in which magneto optical gyrotropic layers and anisotropic birefringent layers can be connected epitaxially is obtained in that the waveguiding core layer comprises two rare earth-iron garnet (YIG) layers which are differently doped to obtain different specific birefringence.
摘要翻译：本发明涉及一种具有磁光学旋转层和各向异性双折射层的平面光隔离器，它们成比例地使得由正向的磁场作用引起的光的极化偏转（法拉第旋转）隔离器的至少基本上与由于双折射的结果的偏振的往复旋转成负相等，使得在正向方向上的TE模式以低阻尼被引导，采取措施来强化至少一个TM -模式。得到具有高分离效果的隔离器，其中可以外延地连接磁光学旋转层和各向异性双折射层，因为波导芯层包括两个不同掺杂的稀土 - 铁石榴石（YIG）层，以获得不同的特定双折射。

8. 发明授权

US4277138A Diffraction grating and system for the formation of color components 失效
$Diffraction grating and system for the formation of color components$
标题翻译：衍射光栅和系统用于形成彩色成分
公开(公告)号：US4277138A
公开(公告)日：1981-07-07
申请号：US24285
申请日：1979-03-26
申请人： Hans Dammann
发明人： Hans Dammann
IPC分类号： G02B5/18 , G02B5/20 , G02B27/10 , G02B27/42 , G02B27/44 , H04N1/04 , H04N1/46 , H04N1/48 , H04N9/07 , H04N9/11
CPC分类号： G02B27/1013 , G02B27/1006 , G02B27/1086 , G02B5/1871 , H04N9/11
摘要： A device for spacially separating specific spectral regions, preferably of color components from a wideband spectrum which is actively and/or passively radiated by objects. The spectral regions, or color components, are derived from the diffraction orders of a diffraction grating (phase grating), which is disposed in the pupil of an imaging lens and whose groove profile consists of several steps, which produce path length differences which are integral multiples of a specific wavelength.
摘要翻译：用于空间上分离特定光谱区域的装置，优选地是由被物体主动和/或被动地辐射的宽带光谱的颜色分量。光谱区域或颜色分量衍生自衍射光栅（相位光栅）的衍射级，衍射光栅（相位光栅）设置在成像透镜的光瞳中，并且其凹槽轮廓由几个步骤组成，其产生为积分的路径长度差异特定波长的倍数。

9. 发明授权

US4159164A Method of eliminating errors in images derived from patterns which consist of periodically arranged individual images 失效
标题翻译：消除由周期性布置的单独图像组成的图案导出的图像中的错误的方法
公开(公告)号：US4159164A
公开(公告)日：1979-06-26
申请号：US854340
申请日：1977-11-23
申请人： Hans Dammann , Erhard Klotz
发明人： Hans Dammann , Erhard Klotz
IPC分类号： G02B27/46 , G03F7/20 , G02B27/38
CPC分类号： G03F7/70308 , G02B27/46 , G03F7/2008
摘要： The invention relates to a method of eliminating errors in images of patterns which consist of periodically arranged individual images by optical filtering, only certain selected diffraction orders of the regular pattern to be imaged in the form of a ring or parts of a ring being employed for further imaging.
摘要翻译：本发明涉及一种通过光学滤波消除由周期性布置的单独图像组成的图案图像中的错误的方法，仅以环或环的一部分形式成像的规则图案的某些选定衍射级用于进一步成像。

10. 发明授权

US3969017A Method of image enhancement 失效
标题翻译：图像增强方法
公开(公告)号：US3969017A
公开(公告)日：1976-07-13
申请号：US547694
申请日：1975-02-06
申请人： Hans Dammann
发明人： Hans Dammann
IPC分类号： G02B27/46 , G02B27/10
CPC分类号： G02B27/46
摘要： A method of image enhancement is described. A number of images of different unsharpness are separately filtered and subsequently combined. The various filters have complementary apertures.
摘要翻译：描述图像增强的方法。不同的不清晰度的多个图像被分别过滤并随后组合。各种滤光片具有互补的孔。

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