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31. 发明授权

US08217334B1 Optical navigation sensor including a spatial frequency filter 有权
标题翻译：光学导航传感器包括空间频率滤波器
公开(公告)号：US08217334B1
公开(公告)日：2012-07-10
申请号：US12317521
申请日：2008-12-24
申请人： Robert J. Lang , Jahja I. Trisnadi , Steven Sanders , Ke-Cai Zeng
发明人： Robert J. Lang , Jahja I. Trisnadi , Steven Sanders , Ke-Cai Zeng
IPC分类号： G06M7/00 , G06F3/033
CPC分类号： G06F3/03543 , G06F3/0317
摘要： An optical navigation sensor (ONS) is provided having a spatial frequency filter to transmit radiation at selected spatial frequencies while attenuating other, undesired frequencies and harmonics. The ONS includes a radiation source to transmit radiation toward a portion of a surface that diffusely reflects radiation incident thereon. The spatial frequency filter is disposed to receive radiation scattered from the surface, and, in one embodiment, includes a number of non-circular openings to pass radiation of at least one pre-selected frequency while attenuating other frequencies and harmonics of the pre-selected frequency.
摘要翻译：提供了一种光学导航传感器（ONS），其具有空间频率滤波器，以在选定的空间频率下发射辐射，同时衰减其它不期望的频率和谐波。 ONS包括辐射源，以朝着漫射反射入射的辐射的表面的一部分传播辐射。空间频率滤波器被设置为接收从表面散射的辐射，并且在一个实施例中，包括多个非圆形开口以通过至少一个预选频率的辐射，同时衰减预选的其它频率和谐波频率。

32. 发明授权

US06806997B1 Patterned diffractive light modulator ribbon for PDL reduction 有权
$Patterned diffractive light modulator ribbon for PDL reduction$
标题翻译：用于PDL降低的图案衍射光调制器带
公开(公告)号：US06806997B1
公开(公告)日：2004-10-19
申请号：US10377912
申请日：2003-02-28
申请人： Michael Dueweke , Dinesh Maheshwari , Christopher Gudernan , Jahja I. Trisnadi
发明人： Michael Dueweke , Dinesh Maheshwari , Christopher Gudernan , Jahja I. Trisnadi
IPC分类号： G02B2608
CPC分类号： G02B26/0808
摘要： A modulator for modulating an incident beam of light. The modulator includes a plurality of elements, each element including a first end, a second end, a first linear side, a second linear side, and a continuous or non-continuous light reflective planar surface plurality of elements are arranged parallel to each other and further wherein the light reflective planar surface of each of the plurality of elements includes a first non-linear side and a second non-linear side. The modulator also includes a support structure coupled to each end of the plurality of elements to enable movement between a first modulator configuration wherein the plurality of elements act to reflect the incident beam of light as a plane mirror, and a second modulator configuration wherein the plurality of elements act to diffract the incident beam of light.
摘要翻译：用于调制入射光束的调制器。调制器包括多个元件，每个元件包括彼此平行布置的多个元件的第一端，第二端，第一线性侧，第二线性侧和连续或不连续的光反射平面，进一步地，所述多个元件中的每一个的所述光反射平面表面包括第一非线性侧和第二非线性侧。调制器还包括耦合到多个元件的每个端部的支撑结构，以使得能够在第一调制器配置之间进行移动，其中多个元件用作反射作为平面镜的入射光束，以及第二调制器配置，其中多个的元素用于衍射入射光束。

33. 发明授权

US06956878B1 Method and apparatus for reducing laser speckle using polarization averaging 有权
标题翻译：使用偏振平均减少激光散斑的方法和装置
公开(公告)号：US06956878B1
公开(公告)日：2005-10-18
申请号：US09498703
申请日：2000-02-07
申请人： Jahja I. Trisnadi
发明人： Jahja I. Trisnadi
IPC分类号： G02B27/28 , G02B27/48 , H01S3/10 , H01S3/08
CPC分类号： G02B27/48
摘要： A method and apparatus for reducing speckle uses polarization averaging. A polarizing beam splitter divides a first polarized laser output into a second polarized laser output and a third polarized laser output. A plurality of mirrors creates an optical path difference between the second and third polarized laser outputs. The optical path difference is at least about a coherence length for the first polarized laser output. The second and third polarized laser outputs are combined into a fourth laser output, which illuminates a depolarizing screen. If a human eye or an optical system having a intensity detector views the depolarizing screen, the eye or the intensity detector will detect reduced speckle, which results from uncorrelated speckle patterns created by the second polarized laser output and the third polarized laser output. A first alternative embodiment of the invention functions without the optical path difference being at least about the coherence length. In the first alternative embodiment, a piezoelectric transducer varies an optical path length by at least about a half wavelength of the first polarized laser output. By varying the optical path length by a sufficient frequency, the eye or the intensity detector will detect the reduced speckle. A second alternative embodiment combines two orthogonally polarized laser outputs, from two lasers, into a combined laser output. The combined laser output illuminates the depolarizing screen. A third alternative embodiment rotates the first laser output with a rotation frequency to form a rotating polarized laser output, which illuminates the depolarizing screen.
摘要翻译：减少斑点的方法和装置使用极化平均。偏振分束器将第一偏振激光输出分为第二偏振激光输出和第三偏振激光输出。多个反射镜在第二和第三偏振激光输出之间产生光程差。光路差异至少约为第一偏振激光输出的相干长度。第二和第三偏振激光输出组合成第四激光输出，其照亮去极化屏幕。如果具有强度检测器的人眼或光学系统观察去极化屏幕，则眼睛或强度检测器将检测由第二偏振激光输出和第三偏振激光输出产生的不相关的斑点图案产生的减少的斑点。本发明的第一替代实施例在没有光路差异至少约相干长度的情况下起作用。在第一替代实施例中，压电换能器将光路长度改变至少第一偏振激光输出的一半波长。通过以足够的频率改变光路长度，眼睛或强度检测器将检测到减少的斑点。第二替代实施例将来自两个激光器的两个正交极化激光输出组合成组合的激光输出。组合的激光输出照亮去极化屏幕。第三替代实施例以旋转频率旋转第一激光输出以形成旋转偏振激光输出，其照亮去极化屏幕。

34. 发明授权

US06747781B2 Method, apparatus, and diffuser for reducing laser speckle 有权
标题翻译：用于减少激光斑点的方法，设备和扩散器
公开(公告)号：US06747781B2
公开(公告)日：2004-06-08
申请号：US09898882
申请日：2001-07-02
申请人： Jahja I. Trisnadi
发明人： Jahja I. Trisnadi
IPC分类号： G02F101
CPC分类号： G02B27/48
摘要： A method of reducing speckle includes dividing a laser illuminated area into phase cells, subdividing the phase cells into cell partitions, and applying a temporal phase variation to the cell partitions within an integration time of an intensity detector viewing the laser illuminated area. An apparatus for reducing speckle includes illumination optics, a diffuser, and projection optics. The illumination optics couple a laser illumination to the diffuser, which is located in a first image plane. The diffuser divides the laser illumination into the phase cells and subdivides the phase cells into the cell partitions. The diffuser also applies the temporal phase variation to the cell partitions. The projection optics project an image of the first image plane onto a diffuse surface. A display apparatus adds a light modulator to the apparatus for reducing speckle and places the light modulator in a third image plane located between a laser source and the diffuser. The diffuser includes first and second diffuser cells, each of which include first and second diffuser cell partitions. In use, the first diffuser cell partitions induce a first relative phase of zero while the second diffuser cell partitions induce a second relative phase of pi radians. The first and second diffuser cell partitions of the first diffuser cells are preferably arranged in a first Hadamard matrix pattern. The first and second diffuser cell partitions of the second diffuser cell are preferably arranged in a second Hadamard matrix pattern.
摘要翻译：减少斑点的方法包括将激光照射区域分为相位单元，将相位单元细分成单元分区，以及在观察激光照射区域的强度检测器的积分时间内对单元分区应用时间相位变化。用于减少斑点的装置包括照明光学器件，漫射器和投影光学器件。照明光学器件将激光照射耦合到位于第一像平面中的漫射器。扩散器将激光照射分为相位单元，并将相位单元细分成单元分隔。扩散器还将时间相位变化应用于单元分区。投影光学器件将第一个图像平面的图像投影到漫射表面上。显示装置将光调制器添加到用于减少斑点的装置中，并将光调制器放置在位于激光源和扩散器之间的第三像面中。扩散器包括第一和第二扩散器单元，每个扩散器单元包括第一和第二扩散器单元隔板。在使用中，第一扩散器单元分隔器引起第一相对相位为零，而第二扩散器单元分隔件引起第一相对相位的π弧度。第一扩散器单元的第一和第二扩散器单元隔板优选地以第一Hadamard矩阵图案布置。第二扩散器单元的第一和第二扩散器单元隔板优选地布置在第二Hadamard矩阵图案中。

35. 发明授权

US06323984B1 Method and apparatus for reducing laser speckle 有权
标题翻译：减少激光斑点的方法和装置
公开(公告)号：US06323984B1
公开(公告)日：2001-11-27
申请号：US09687465
申请日：2000-10-11
申请人： Jahja I. Trisnadi
发明人： Jahja I. Trisnadi
IPC分类号： G02F103
CPC分类号： G02B27/48 , H04N9/3126 , H04N9/3132
摘要： A method and apparatus for reducing laser speckle in a laser illuminated system where a line illumination produced by a laser is scanned across a diffuse service is preferably incorporated in a display apparatus where a two dimensional image is produced on a display screen. The display apparatus includes a light modulator, a wavefront modulator, and a projection/scanning optical arrangement. The light modulator modulates a laser illumination to form a line image made up of a linear array of pixels. The wavefront modulator varies a spatial phase across a width of the line image thus forming a phase modulated wavefront. The projection/scanning optical arrangement projects the line image onto the display screen and scans the line image over the display screen. The phase modulated wavefront produces multiple speckle patterns that are averaged as the line image is scanned and, thus, produces the reduced laser speckle.
摘要翻译：用于减少激光照射系统中的激光散斑的方法和装置，其中由激光产生的线照明在漫射服务上扫描，优选地结合在显示装置中，其中在显示屏上产生二维图像。显示装置包括光调制器，波前调制器和投影/扫描光学装置。光调制器调制激光照明以形成由线性像素阵列组成的线图像。波前调制器在线图像的宽度上改变空间相位，从而形成相位调制的波前。投影/扫描光学装置将线条图像投影到显示屏幕上，并通过显示屏幕扫描线条图像。相位调制波阵面产生多个斑纹图案，其随着扫描线图像而被平均，并因此产生减少的激光散斑。

36. 发明授权

US5638193A Method and apparatus for azimuthal multiplexing of holograms 失效
标题翻译：全息图方位复用的方法和装置
公开(公告)号：US5638193A
公开(公告)日：1997-06-10
申请号：US361147
申请日：1994-12-21
申请人： Jahja I. Trisnadi , Curtis A. Shuman
发明人： Jahja I. Trisnadi , Curtis A. Shuman
IPC分类号： G03H1/12 , G03H1/26 , G11C13/04 , G02B5/32 , G03H1/10 , G11B7/00
CPC分类号： G03H1/26 , G03H1/12 , G11C13/042 , G03H1/265 , G03H2001/2675
摘要： A holographic storage system and method are provided in which a light source (12) is used to generate a coherent light beam which is split into a reference beam (18) and an object beam (20). The reference beam (18) is directed to the holographic storage medium (22) through use of a reference beam multiplexer (24). The object beam is encoded with a pattern encoder (34) and directed to the holographic storage medium (26). During read out, the object beam is reconstructed and detected by an optical detector (40).
摘要翻译：提供一种全息存储系统和方法，其中使用光源（12）来产生被分成参考光束（18）和物体光束（20）的相干光束。参考光束（18）通过使用参考光束多路复用器（24）被引导到全息存储介质（22）。物体光束用图案编码器（34）编码并被引导到全息存储介质（26）。在读出期间，物体光束由光学检测器（40）重建和检测。

37. 发明授权

US08285131B1 Apparatus and method for recording an image on photographic film 有权
标题翻译：在摄影胶片上记录图像的装置和方法
公开(公告)号：US08285131B1
公开(公告)日：2012-10-09
申请号：US12949618
申请日：2010-11-18
申请人： Gregory A. Myatt , Alexander P. Payne , Jahja I. Trisnadi , Harold A. Zarem
发明人： Gregory A. Myatt , Alexander P. Payne , Jahja I. Trisnadi , Harold A. Zarem
IPC分类号： G03B37/02
CPC分类号： G02B26/0808 , G03B21/2033 , G03B27/528 , G03B27/73 , G03B33/06 , H04N5/846
摘要： A film recorder including a linear diffractive spatial light modulator (LDSLM) and methods of using the same to record a digital image on a strip of photographic film are provided. In one embodiment, the recorder includes: an illuminator including at least one monochromatic light source generating a light beam; a spatial light modulator assembly including at least one linear diffractive spatial light modulator (LDSLM) to receive the light beam from the illuminator and modulate the light beam from the illuminator; a film transport for transporting a photographic film on an imaging plane; and imaging optics disposed in a light path between the LDSLM and the imaging plane to image the light beam simultaneously on a substantially linear portion of the photographic film to record an image on the photographic film. Other embodiments are also provided.
摘要翻译：提供了一种包括线性衍射空间光调制器（LDSLM）的胶卷记录器及其使用方法，用于在照相胶片条上记录数字图像。在一个实施例中，记录器包括：照明器，包括产生光束的至少一个单色光源; 空间光调制器组件，其包括至少一个线性衍射空间光调制器（LDSLM），以接收来自照明器的光束并调制来自照明器的光束; 用于在成像平面上传送照相胶片的胶片传送装置; 以及设置在LDSLM和成像平面之间的光路中的成像光学器件，以将光束同时成像在照相胶片的基本上线性的部分上，以在照相胶片上记录图像。还提供了其他实施例。

38. 发明授权

US5665791A Photosensitive polymer films and their method of production 失效
标题翻译：光敏聚合物膜及其制备方法
公开(公告)号：US5665791A
公开(公告)日：1997-09-09
申请号：US531521
申请日：1995-09-21
申请人： Chung J. Lee , Jahja I. Trisnadi
发明人： Chung J. Lee , Jahja I. Trisnadi
IPC分类号： C08F2/46 , G03F7/00 , G03F7/027 , G03H1/04
CPC分类号： G03F7/027 , G03F7/001
摘要： Novel photosensitive polymer films are provided that include (1) a polymer carrier having .dbd.N--C(.dbd.O)-- groups; (2) an initiation system for photo polymerization; (3) polymerizable compounds; and (4) other chemicals as appropriate. The photosensitive polymer films demonstrate short pump times, short DRAW times, short fix times, and reduced noise levels equal to one-third to one-fifth the noise level of prior photosensitive polymer films.
摘要翻译：提供新的光敏聚合物膜，其包括（1）具有= N-C（= O） - 基团的聚合物载体; （2）光聚合引发体系; （3）可聚合化合物; 和（4）适当的其他化学品。感光性聚合物膜表现出较短的泵浦时间，短的拉伸时间，短的固定时间和降低的噪音水平等于先前光敏聚合物膜的噪声水平的三分之一至五分之一。

39. 发明授权

US5627664A Holographic storage with combined orthogonal phase codes and random phase codes 失效
标题翻译：具有组合正交相位代码和随机相位代码的全息存储
公开(公告)号：US5627664A
公开(公告)日：1997-05-06
申请号：US267969
申请日：1994-06-29
申请人： Jahja I. Trisnadi
发明人： Jahja I. Trisnadi
IPC分类号： G03H1/12 , G11B7/0065
CPC分类号： G03H1/12 , G11B7/0065 , G03H2001/2675
摘要： A method and apparatus for holographic storage with combined orthogonal phase codes and random phase codes are provided in which a reference beam (18) is encoded with a combination orthogonal phase code and random phase code by a phase encoder (28). A data pattern is imposed on an object beam (20) by pattern encoder (38). Both the reference beam (18) and the object beam (20) are directed to a particular stack site on a storage medium (32).
摘要翻译：提供了一种具有组合正交相位码和随机相位码的全息存储的方法和装置，其中参考光束（18）由相位编码器（28）用组合正交相位码和随机相位码进行编码。数据图案由图案编码器（38）施加在物体光束（20）上。参考光束（18）和物体光束（20）均被引导到存储介质（32）上的特定堆叠位置。

40. 发明申请

US20160209929A1 METHOD AND SYSTEM FOR THREE-DIMENSIONAL MOTION-TRACKING 审中-公开
标题翻译：用于三维运动跟踪的方法和系统
公开(公告)号：US20160209929A1
公开(公告)日：2016-07-21
申请号：US15000993
申请日：2016-01-19
申请人： Jahja I. Trisnadi
发明人： Jahja I. Trisnadi
IPC分类号： G06F3/01 , G06F3/03 , G01D5/34
CPC分类号： G06F3/042 , G06F3/0304 , G06F2203/04101
摘要： One embodiment provides an apparatus for tracking movements of an object in a three-dimensional (3D) space. The apparatus can include one or more lasers, one or more optical sensors, and a processing unit. The total number of lasers and optical sensors is equal to or greater than three. A respective laser is configured to emit a laser beam onto a surface of the object and a respective optical sensor is configured to detect speckles of one or more lasers scattered from the surface of the object. The processing unit is configured to compute 3D displacement of the object based on outputs of the optical sensors and generate data associated with the 3D displacement.
摘要翻译：一个实施例提供了用于跟踪三维（3D）空间中的对象的运动的装置。该装置可以包括一个或多个激光器，一个或多个光学传感器和处理单元。激光器和光学传感器的总数等于或大于三。相应的激光器被配置为将激光束发射到物体的表面上，并且相应的光学传感器被配置为检测从物体的表面散射的一个或多个激光器的斑点。处理单元被配置为基于光学传感器的输出来计算对象的3D位移，并且生成与3D位移相关联的数据。

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