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1. 发明申请

US20100296380A1 Spatial Light Modulators with Changeable Phase Masks for Use in Holographic Data Storage 有权
标题翻译：具有可变相位掩模的空间光调制器用于全息数据存储
公开(公告)号：US20100296380A1
公开(公告)日：2010-11-25
申请号：US12770444
申请日：2010-04-29
申请人： Mark A. Handschy , Michael J. O'Callaghan
发明人： Mark A. Handschy , Michael J. O'Callaghan
IPC分类号： G11B7/00 , G02F1/01
CPC分类号： G03H1/16 , G03H1/02 , G03H2001/0224 , G03H2001/261 , G03H2210/22 , G03H2223/13 , G03H2225/22 , G03H2225/24 , G03H2225/33 , G03H2225/34 , G03H2225/55 , G11B7/0065 , G11B7/128 , G11B7/1362 , G11B7/1369 , G11C13/042
摘要： A holographic data storage system that includes a write head that includes a pixellated spatial light modulator and a separate or integral phase mask that varies the phase depending on the location in the phase mask that light passes through. The phase variation can be changed over time in a random, pseudo-random, or predetermined fashion. The spatial light modulator and phase mask can be implemented in a liquid crystal SLM (nematic, ferroeleletric, or other), in a DMD SLM, in a magneto-optical SLM, or in any other suitable manner.
摘要翻译：一种全息数据存储系统，其包括写入头，该写入头包括像素化的空间光调制器和根据光通过的相位掩模中的位置来改变相位的分离或积分相位掩模。可以随机，伪随机或预定方式随时间改变相位变化。空间光调制器和相位掩模可以在DMD SLM，磁光SLM中以任何其它合适的方式在液晶SLM（向列，铁电或其它）中实现。

2. 发明申请

US20100091631A1 PHASE MASKS FOR USE IN HOLOGRAPHIC DATA STORAGE 有权
标题翻译：相位掩码用于全息数据存储
公开(公告)号：US20100091631A1
公开(公告)日：2010-04-15
申请号：US12639821
申请日：2009-12-16
申请人： Mark A. Handschy , Michael J. O'Callaghan , Christopher M. Walker
发明人： Mark A. Handschy , Michael J. O'Callaghan , Christopher M. Walker
IPC分类号： G11B7/00
CPC分类号： G02F1/292 , G02F1/13363 , G02F2001/133565 , G03H1/02 , G03H1/16 , G03H2001/0224 , G03H2223/13 , G11B7/0065 , G11B7/128 , G11B7/1369
摘要： A spatial light modulator (SLM) having a phase mask that is provided as an internal component thereof. The phase mask can be provided as a multilevel surface of relatively higher index of refraction material on an inner surface of a transmissive cover window or as a separate transmissive window between the cover window and the pixels of the SLM. If the phase mask is to be used with a liquid crystal SLM, then it may be desirable to planarize the surface of the cover window contacting the liquid crystal by providing a layer of relatively lower index of refraction material adjacent the multilevel surface. The phase mask can also be provided on the transmissive cover window by patterned ion deposition, exposing patterned light to a photopolymeric material, or in some other suitable fashion. Arranging for the pixel electrodes to be at one of multiple levels rather than lying in an exactly planar relationship can also effectively create the phase mask.
摘要翻译：具有作为其内部部件提供的相位掩模的空间光调制器（SLM）。相位掩模可以被提供为在透射盖窗的内表面上的相对较高的折射率材料的多层表面，或者作为在窗口窗口和SLM的像素之间的单独透射窗口。如果相位掩模与液晶SLM一起使用，则可能需要通过提供相邻较低折射率材料层与多层表面相邻来平坦化与液晶接触的盖窗的表面。相位掩模也可以通过图案化离子沉积在透射覆盖窗口上提供，将图案化光曝光到光聚合物材料上，或以某种其它合适的方式。将像素电极排列成多个电平中的一个而不是处于精确的平面关系，也可以有效地产生相位掩模。

3. 发明授权

US07656768B2 Phase masks for use in holographic data storage 失效
标题翻译：用于全息数据存储的相位掩模
公开(公告)号：US07656768B2
公开(公告)日：2010-02-02
申请号：US11046197
申请日：2005-01-27
申请人： Mark A. Handschy , Michael J. O'Callaghan , Christopher M. Walker
发明人： Mark A. Handschy , Michael J. O'Callaghan , Christopher M. Walker
IPC分类号： G11B7/00
CPC分类号： G02F1/292 , G02F1/13363 , G02F2001/133565 , G03H1/02 , G03H1/16 , G03H2001/0224 , G03H2223/13 , G11B7/0065 , G11B7/128 , G11B7/1369
摘要： A spatial light modulator (SLM) having a phase mask that is provided as an internal component thereof. The phase mask can be provided as a multilevel surface of relatively higher index of refraction material on an inner surface of a transmissive cover window or as a separate transmissive window between the cover window and the pixels of the SLM. If the phase mask is to be used with a liquid crystal SLM, then it may be desirable to planarize the surface of the cover window contacting the liquid crystal by providing a layer of relatively lower index of refraction material adjacent the multilevel surface. The phase mask can also be provided on the transmissive cover window by patterned ion deposition, exposing patterned light to a photopolymeric material, or in some other suitable fashion. Arranging for the pixel electrodes to be at one of multiple levels rather than lying in an exactly planar relationship can also effectively create the phase mask.
摘要翻译：具有作为其内部部件提供的相位掩模的空间光调制器（SLM）。相位掩模可以被提供为在透射盖窗的内表面上的相对较高的折射率材料的多层表面，或者作为在窗口窗口和SLM的像素之间的单独透射窗口。如果相位掩模与液晶SLM一起使用，则可能需要通过提供相邻较低折射率材料层与多层表面相邻来平坦化与液晶接触的盖窗的表面。相位掩模也可以通过图案化离子沉积在透射覆盖窗口上提供，将图案化光曝光到光聚合物材料上，或以某种其它合适的方式。将像素电极排列成多个电平中的一个而不是处于精确的平面关系，也可以有效地产生相位掩模。

4. 发明申请

US20080284973A1 LAYER ALIGNMENT OF SMECTIC LIQUID CRYSTALS 审中-公开
标题翻译：液晶液晶层的对准
公开(公告)号：US20080284973A1
公开(公告)日：2008-11-20
申请号：US12122452
申请日：2008-05-16
申请人： Bentley Wall , Dmylro Reznikov , Philip Bos , Michael J. O'Callaghan , Mark A. Handschy
发明人： Bentley Wall , Dmylro Reznikov , Philip Bos , Michael J. O'Callaghan , Mark A. Handschy
IPC分类号： G02F1/13
CPC分类号： G02F1/141 , G02F1/1337
摘要： A method of fabricating a liquid crystal display device by introducing a ferroelectric liquid crystal (FLC) between two substrates, contacting the FLC to a molecularly smooth edge, and aligning the FLC by introducing a temperature gradient normal to the edge. In one embodiment, the FLC is aligned by cooling it from an isotropic phase to a smectic phase at a rate that is relatively slow. For example, the cooling rate may be less than about 3 degrees Celsius per hour. In one embodiment, smectic layers are formed that are parallel to the edge. In one embodiment, the molecularly smooth edge is an air bubble.
摘要翻译：通过在两个基板之间引入铁电液晶（FLC），将FLC接触到分子平滑边缘并通过引入与边缘垂直的温度梯度来对准FLC来制造液晶显示装置的方法。在一个实施方案中，通过以相对较慢的速率将FLC从各向同性相冷却至近晶相来对准FLC。例如，冷却速度可以小于约3摄氏度/小时。在一个实施例中，形成平行于边缘的近晶层。在一个实施例中，分子平滑边缘是气泡。

5. 发明授权

US5182665A Diffractive light modulator 失效
$Diffractive light modulator$
标题翻译：衍射光调制器
公开(公告)号：US5182665A
公开(公告)日：1993-01-26
申请号：US578647
申请日：1990-09-07
申请人： Michael J. O'Callaghan , Mark A. Handschy
发明人： Michael J. O'Callaghan , Mark A. Handschy
IPC分类号： G02F1/141 , G02F1/29
CPC分类号： G02F1/292 , G02F1/141 , G02F2201/124 , G02F2203/24
摘要： An arrangement (apparatus and method) for selectively modulating incident unpolarized light passing through a birefringent material, such as ferroelectric crystal. The apparatus includes a plate having one or more birefringent layers. The birefringent layer has an optic axis selectably set in a first orientation and a second orientation. A switching means controls the optical axis state of voltages to the areas of the birefringent layer. Light having passed through the birefringent layer at locations having the first orientation have a different phase from, and same polarization as, light having passed through locations with the second orientation, independent of a polarization state of the incident light. As a result, the birefringent material has a uniform state at locations where the corresponBACKGROUND OF THE INVENTIONGovernment Contract ClauseThis invention was made with Government support un contract F29601-89-C-0075 awarded by the Department of the Air Force. The Government may have certain rights in this invention.
摘要翻译：用于选择性地调制通过诸如铁电晶体的双折射材料的入射非偏振光的装置（装置和方法）。该装置包括具有一个或多个双折射层的板。双折射层具有可选择地设置在第一取向和第二取向的光轴。开关装置控制双折射层的区域的电压的光轴状态。在具有第一取向的位置处通过双折射层的光与入射光的偏振状态无关，具有与通过具有第二取向的位置的光不同的相位和相同的偏振。结果，双折射材料在第一和第二区域之间的相应光轴平行的位置处具有均匀的状态，并且由穿过具有第一取向的光与具有第一取向的光之间的相互作用产生的衍射状态和具有穿过具有第二方向的区域。该装置对于反射调制器，多层调制器或偏振保存调制器是有效的，并且具有用于强度调制，模糊调制和波束转向的应用。

6. 发明授权

US08107344B2 Phase masks for use in holographic data storage 有权
标题翻译：用于全息数据存储的相位掩模
公开(公告)号：US08107344B2
公开(公告)日：2012-01-31
申请号：US12639821
申请日：2009-12-16
申请人： Mark A. Handschy , Michael J. O'Callaghan , Christopher M. Walker
发明人： Mark A. Handschy , Michael J. O'Callaghan , Christopher M. Walker
IPC分类号： G11B7/00
CPC分类号： G02F1/292 , G02F1/13363 , G02F2001/133565 , G03H1/02 , G03H1/16 , G03H2001/0224 , G03H2223/13 , G11B7/0065 , G11B7/128 , G11B7/1369
摘要： A spatial light modulator (SLM) having a phase mask that is provided as an internal component thereof. The phase mask can be provided as a multilevel surface of relatively higher index of refraction material on an inner surface of a transmissive cover window or as a separate transmissive window between the cover window and the pixels of the SLM. If the phase mask is to be used with a liquid crystal SLM, then it may be desirable to planarize the surface of the cover window contacting the liquid crystal by providing a layer of relatively lower index of refraction material adjacent the multilevel surface. The phase mask can also be provided on the transmissive cover window by patterned ion deposition, exposing patterned light to a photopolymeric material, or in some other suitable fashion. Arranging for the pixel electrodes to be at one of multiple levels rather than lying in an exactly planar relationship can also effectively create the phase mask.
摘要翻译：具有作为其内部部件提供的相位掩模的空间光调制器（SLM）。相位掩模可以被提供为在透射盖窗的内表面上的相对较高的折射率材料的多层表面，或者作为在窗口窗口和SLM的像素之间的单独透射窗口。如果相位掩模与液晶SLM一起使用，则可能需要通过提供相邻较低折射率材料层与多层表面相邻来平坦化与液晶接触的盖窗的表面。相位掩模也可以通过图案化离子沉积在透射覆盖窗口上提供，将图案化光曝光到光聚合物材料上，或以某种其它合适的方式。将像素电极排列成多个电平中的一个而不是处于精确的平面关系，也可以有效地产生相位掩模。

7. 发明授权

US08134771B2 Spatial light modulators with changeable phase masks for use in holographic data storage 有权
标题翻译：具有用于全息数据存储的可变相位掩模的空间光调制器
公开(公告)号：US08134771B2
公开(公告)日：2012-03-13
申请号：US12770444
申请日：2010-04-29
申请人： Mark A. Handschy , Michael J. O'Callaghan
发明人： Mark A. Handschy , Michael J. O'Callaghan
IPC分类号： G02F1/01 , G02B26/00 , G03H1/12
CPC分类号： G03H1/16 , G03H1/02 , G03H2001/0224 , G03H2001/261 , G03H2210/22 , G03H2223/13 , G03H2225/22 , G03H2225/24 , G03H2225/33 , G03H2225/34 , G03H2225/55 , G11B7/0065 , G11B7/128 , G11B7/1362 , G11B7/1369 , G11C13/042
摘要： A holographic data storage system that includes a write head that includes a pixellated spatial light modulator and a separate or integral phase mask that varies the phase depending on the location in the phase mask that light passes through. The phase variation can be changed over time in a random, pseudo-random, or predetermined fashion. The spatial light modulator and phase mask can be implemented in a liquid crystal SLM (nematic, ferroeleletric, or other), in a DMD SLM, in a magneto-optical SLM, or in any other suitable manner.
摘要翻译：一种全息数据存储系统，其包括写入头，该写入头包括像素化的空间光调制器和根据光通过的相位掩模中的位置来改变相位的分离或积分相位掩模。可以随机，伪随机或预定方式随时间改变相位变化。空间光调制器和相位掩模可以在DMD SLM，磁光SLM中以任何其它合适的方式在液晶SLM（向列，铁电或其它）中实现。

8. 发明授权

US07733557B2 Spatial light modulators with changeable phase masks for use in holographic data storage 有权
标题翻译：具有用于全息数据存储的可变相位掩模的空间光调制器
公开(公告)号：US07733557B2
公开(公告)日：2010-06-08
申请号：US11739642
申请日：2007-04-24
申请人： Mark A. Handschy , Michael J. O'Callaghan
发明人： Mark A. Handschy , Michael J. O'Callaghan
IPC分类号： G02F1/01 , G02B5/32 , G03H1/16 , G11B7/00
CPC分类号： G03H1/16 , G03H1/02 , G03H2001/0224 , G03H2001/261 , G03H2210/22 , G03H2223/13 , G03H2225/22 , G03H2225/24 , G03H2225/33 , G03H2225/34 , G03H2225/55 , G11B7/0065 , G11B7/128 , G11B7/1362 , G11B7/1369 , G11C13/042
摘要： A holographic data storage system that includes a write head that includes a pixellated spatial light modulator and a separate or integral phase mask that varies the phase depending on the location in the phase mask that light passes through. The phase variation can be changed over time in a random, pseudo-random, or predetermined fashion. The spatial light modulator and phase mask can be implemented in a liquid crystal SLM (nematic, ferroelectric, or other), in a DMD SLM, in a magneto-optical SLM, or in any other suitable manner.
摘要翻译：一种全息数据存储系统，其包括写入头，该写入头包括像素化的空间光调制器和根据光通过的相位掩模中的位置来改变相位的分离或积分相位掩模。可以随机，伪随机或预定方式随时间改变相位变化。空间光调制器和相位掩模可以在DMD SLM，磁光SLM中以任何其它合适的方式在液晶SLM（向列，铁电或其它）中实现。

9. 发明授权

US5552916A Diffractive light modulator 失效
$Diffractive light modulator$
标题翻译：衍射光调制器
公开(公告)号：US5552916A
公开(公告)日：1996-09-03
申请号：US8764
申请日：1993-01-25
申请人： Michael J. O'Callaghan , Mark A. Handschy
发明人： Michael J. O'Callaghan , Mark A. Handschy
IPC分类号： G02F1/141 , G02F1/29 , G02F1/13
CPC分类号： G02F1/292 , G02F1/141 , G02F2201/124 , G02F2203/24
摘要： An arrangement (apparatus and method) for selectively modulating incident unpolarized light passing through a birefringent material, such as ferroelectric crystal. The apparatus includes a plate having one or more birefringent layers corresponding to first and second alignment regions. The birefringent layer corresponding to the first alignment region has a first optic axis selectably set in a first orientation and a second orientation. The birefringent layer corresponding to the second alignment region has a second optic axis selectably set in a third orientation and a fourth orientation. A switching means controls the optical axis states of the birefringent material by applying switching voltages to the areas of the birefringent layer. Light having passed through the birefringent layer at locations having the first orientation has a different phase from, and same polarization as, light having passed through locations with the third orientation, independent of a polarization state of the incident light. As a result, the birefringent material has a uniform state at locations where the corresponding optic axes between the first and second alignment regions are parallel, and a diffracting state produced by an interaction between the light having passed through areas having the first orientation and the light having passed through areas having the second orientation. The arrangement is effective for reflective modulators, multilayer modulators or polarization-preserving modulators, and has applications for intensity modulation, blurring modulation and beam steering.
摘要翻译：用于选择性地调制通过诸如铁电晶体的双折射材料的入射非偏振光的装置（装置和方法）。该装置包括具有对应于第一和第二对准区域的一个或多个双折射层的板。对应于第一对准区域的双折射层具有可选地设置在第一取向和第二取向的第一光轴。对应于第二对准区域的双折射层具有可选地设置在第三取向和第四取向的第二光轴。开关装置通过向双折射层的区域施加开关电压来控制双折射材料的光轴状态。在具有第一取向的位置处穿过双折射层的光与通过具有第三取向的位置的光具有不同的相位和相同的偏振，与入射光的偏振状态无关。结果，双折射材料在第一和第二对准区域之间的相应光轴平行的位置处具有均匀的状态，以及通过具有第一取向的光与光之间的相互作用产生的衍射状态已通过具有第二方向的区域。该装置对于反射调制器，多层调制器或偏振保存调制器是有效的，并且具有用于强度调制，模糊调制和波束转向的应用。

10. 发明授权

US08059142B2 Digital display 有权
标题翻译：数字显示
公开(公告)号：US08059142B2
公开(公告)日：2011-11-15
申请号：US11969734
申请日：2008-01-04
申请人： Mark A. Handschy , James M. Dallas , Per Harold Larson , David B. Hollenbeck
发明人： Mark A. Handschy , James M. Dallas , Per Harold Larson , David B. Hollenbeck
IPC分类号： G09G5/10 , G09G5/36
CPC分类号： G09G3/3629 , G09G3/2014 , G09G3/3618 , G09G2300/0809 , G09G2300/0857 , G09G2310/0235 , G09G2320/0285 , G09G2320/0673
摘要： A display system that achieves a gamma characteristic different than 1, such as a gamma characteristic of 2 for example. The gamma characteristic may be selectable and it may be selectable via timing characteristics rather than by varying the intensity of the light source. Defective memory registers are also compensated for by selecting them to store bits of relatively lower significance.
摘要翻译：实现例如不同于1的伽马特性的显示系统，例如2的伽马特性。伽马特性可以是可选择的，并且其可以通过定时特性而不是通过改变光源的强度来选择。还通过选择存储器寄存器来存储相对较低重要性的位来补偿缺陷存储器寄存器。

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