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1. 发明授权

US07138620B2 Two-dimensional motion sensor 有权
公开(公告)号：US07138620B2
公开(公告)日：2006-11-21
申请号：US11261316
申请日：2005-10-28
申请人： Jahja I. Trisnadi , Clinton B. Carlisle , Robert J. Lang
发明人： Jahja I. Trisnadi , Clinton B. Carlisle , Robert J. Lang
IPC分类号： G09G5/00
CPC分类号： G06F3/0383 , G06F3/0317
摘要： An optical sensor and method of using the same is provided for sensing relative movement between the sensor and a surface by detecting changes in optical features of light reflected from the surface. In one embodiment, the sensor includes a two dimensional array of photosensitive elements, the array including at least a first plurality of photosensitive elements arranged and coupled to sense a first combined movement along a first set of at least two non-parallel axes, and a second plurality of photosensitive elements arranged and coupled to sense a second combined movement along a second set of at least two non-parallel axes.

2. 发明授权

US06876475B1 Dual modulator wavelength-selective switch and equalizer 有权
标题翻译：双调制器波长选择开关和均衡器
公开(公告)号：US06876475B1
公开(公告)日：2005-04-05
申请号：US10346757
申请日：2003-01-17
申请人： Jahja I. Trisnadi , Clinton B. Carlisle , Robert W. Corrigan
发明人： Jahja I. Trisnadi , Clinton B. Carlisle , Robert W. Corrigan
IPC分类号： G02B6/34 , H04J14/02 , G02F1/00
CPC分类号： G02B6/2931 , G02B6/2713 , G02B6/272 , G02B6/2793 , G02B6/29313 , G02B6/29314 , G02B6/3512 , H04J14/0206 , H04J14/0212 , H04J14/0213 , H04J14/0221
摘要： One embodiment pertains to an apparatus for wavelength-selective switching and equalization of an incoming multiplexed signal having a plurality of wavelength components. The apparatus includes a first controllable light modulator, a second controllable light modulator, and a lens system. The first controllable light modulator controllably deflects a first set of the wavelength components and controllably reflects a second set of the wavelength components. The wavelength components in the second set are mapped onto separate sections of the second controllable light modulator by the lens system and are controllably reflected by the second controllable light modulator.
摘要翻译：一个实施例涉及用于具有多个波长分量的输入复用信号的波长选择性切换和均衡的装置。该装置包括第一可控光调制器，第二可控光调制器和透镜系统。第一可控光调制器可控地偏转第一组波长分量并且可控地反射第二组波长分量。第二组中的波长分量由透镜系统映射到第二可控光调制器的分开的部分上，并被第二可控光调制器可控地反射。

3. 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。

4. 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。

5. 发明授权

US07728816B2 Optical navigation sensor with variable tracking resolution 有权
标题翻译：具有可变跟踪分辨率的光学导航传感器
公开(公告)号：US07728816B2
公开(公告)日：2010-06-01
申请号：US11484057
申请日：2006-07-10
申请人： Yansun Xu , Brian Todoroff , Jahja I. Trisnadi , Clinton B. Carlisle
发明人： Yansun Xu , Brian Todoroff , Jahja I. Trisnadi , Clinton B. Carlisle
IPC分类号： G09G5/08
CPC分类号： G06F3/0317
摘要： One embodiment relates to a method of sensing motion of an optical sensor relative to a surface. A first resolution and a second resolution are set. Measurement signals are obtained from a sensor array, and the motion of the optical sensor relative to the surface is tracked using the measurement signals. The tracking of the motion in a first dimension is performed at the first resolution, and the tracking of the motion in a second dimension is performed at the second resolution. Another embodiment relates to an optical sensor apparatus for sensing motion relative to a surface, wherein the tracking of the motion is performed at a variable resolution along each of two axes. Other embodiments and features are also disclosed.
摘要翻译：一个实施例涉及一种感测光学传感器相对于表面的运动的方法。设定第一分辨率和第二分辨率。从传感器阵列获得测量信号，并使用测量信号跟踪光学传感器相对于表面的运动。以第一分辨率执行在第一维度中的运动的跟踪，并且以第二分辨率执行在第二维度中的运动的跟踪。另一实施例涉及一种用于感测相对于表面的运动的光学传感器装置，其中以两个轴的每一个可变分辨率执行运动的跟踪。还公开了其它实施例和特征。

6. 发明申请

US20080007526A1 Optical navigation sensor with variable tracking resolution 有权
标题翻译：具有可变跟踪分辨率的光学导航传感器
公开(公告)号：US20080007526A1
公开(公告)日：2008-01-10
申请号：US11484057
申请日：2006-07-10
申请人： Yansun Xu , Brian Todoroff , Jahja I. Trisnadi , Clinton B. Carlisle
发明人： Yansun Xu , Brian Todoroff , Jahja I. Trisnadi , Clinton B. Carlisle
IPC分类号： G09G5/08
CPC分类号： G06F3/0317
摘要： One embodiment relates to a method of sensing motion of an optical sensor relative to a surface. A first resolution and a second resolution are set. Measurement signals are obtained from a sensor array, and the motion of the optical sensor relative to the surface is tracked using the measurement signals. The tracking of the motion in a first dimension is performed at the first resolution, and the tracking of the motion in a second dimension is performed at the second resolution. Another embodiment relates to an optical sensor apparatus for sensing motion relative to a surface, wherein the tracking of the motion is performed at a variable resolution along each of two axes. Other embodiments and features are also disclosed.
摘要翻译：一个实施例涉及一种感测光学传感器相对于表面的运动的方法。设定第一分辨率和第二分辨率。从传感器阵列获得测量信号，并使用测量信号跟踪光学传感器相对于表面的运动。以第一分辨率执行在第一维度中的运动的跟踪，并且以第二分辨率执行在第二维度中的运动的跟踪。另一实施例涉及一种用于感测相对于表面的运动的光学传感器装置，其中以两个轴的每一个可变分辨率执行运动的跟踪。还公开了其它实施例和特征。

7. 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。

8. 发明授权

US06928207B1 Apparatus for selectively blocking WDM channels 有权
标题翻译：用于选择性地阻挡WDM信道的设备
公开(公告)号：US06928207B1
公开(公告)日：2005-08-09
申请号：US10318658
申请日：2002-12-12
申请人： Jahja I. Trisnadi , Clinton B. Carlisle
发明人： Jahja I. Trisnadi , Clinton B. Carlisle
IPC分类号： G02B6/34 , G02B26/08 , G02B6/35
CPC分类号： G02B6/2931 , G02B6/29314 , G02B26/0808
摘要： An apparatus for selective blocking WDM channels comprises a light modulator, a diffraction grating, and a transform lens. The light modulator comprises an array of pixels. Each pixel of the light modulator is selectively operable to direct light into a first mode and a second mode. The first mode directs the light to an output. The second mode directs the light away from the output. The diffraction grating is operable to receive the WDM channels from an input and to disperse the WDM channels into a range of angles. The transform lens couples the diffraction grating to the light modulator. The diffraction grating is operable to transform the range of angles of the WDM channels into a range of spatially distinct positions along the array of pixels of the light modulator without overlap of two of the WDM channels on an individual pixel. In operation, the light modulator directs at least one of the WDM channels into the second mode while directing a remainder of the WDM channels into the first mode. The light modulator is capable of operating with a large dynamic range, thereby enabling equalization of select, transmitted WDM channels as well as blocking any arbitrary channels over the spectral range of operation.
摘要翻译：用于选择性阻挡WDM信道的装置包括光调制器，衍射光栅和变换透镜。光调制器包括像素阵列。光调制器的每个像素可选择性地操作以将光引导到第一模式和第二模式。第一个模式将光引导到输出。第二种模式将光线远离输出。衍射光栅可操作以从输入接收WDM通道并将WDM通道分散到一定范围的角度。变换透镜将衍射光栅耦合到光调制器。衍射光栅可用于将WDM通道的角度范围变换成沿着光调制器的像素阵列的空间不同的位置的范围，而不需要在单个像素上的两个WDM通道的重叠。在操作中，光调制器将WDM信道中的至少一个引导到第二模式，同时将其余的WDM信道引导到第一模式。光调制器能够在较大的动态范围内工作，从而实现选择发送的WDM信道的均衡，以及在光谱范围内阻塞任何任意信道。

9. 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。

10. 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。

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