专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

11. 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。

12. 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。

13. 发明授权

US06247037B1 Optical correlator having multiple active components formed on a single integrated circuit 失效
标题翻译：具有形成在单个集成电路上的多个有源元件的光学相关器
公开(公告)号：US06247037B1
公开(公告)日：2001-06-12
申请号：US09238311
申请日：1999-01-28
申请人： Michael J. O'Callaghan
发明人： Michael J. O'Callaghan
IPC分类号： G06E300
CPC分类号： G06E3/005
摘要： An optical correlator includes a compound electro-optical component having a first and a second reflective spatial light modulator for forming electro-optical patterns of light. Each spatial light modulator has a reflective backplane with the reflective backplanes of the spatial light modulators being substantially coplanar. The spatial light modulators having their individual respective backplanes formed as two separate portions of a single integrated circuit die. The optical correlator may also include an imager for imaging the output of the optical correlator that is substantially coplanar with the spatial light modulators. The compound electro-optical component may include at least a part of the imager that is formed as a separate portion of the single integrated circuit die that contains the backplanes of the two spatial light modulators.
摘要翻译：光学相关器包括具有用于形成光电图案的第一和第二反射空间光调制器的复合电光部件。每个空间光调制器具有反射背板，空间光调制器的反射背板基本上是共面的。空间光调制器具有各自的各自的背板，形成为单个集成电路管芯的两个分开的部分。光学相关器还可以包括用于对基本上与空间光调制器共面的光学相关器的输出成像的成像器。复合电光部件可以包括形成为包含两个空间光调制器的背板的单个集成电路管芯的单独部分的成像器的至少一部分。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式