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1. 发明授权

US07149015B2 Obliquity correction scanning using a prism mirror 有权
标题翻译：使用棱镜进行倾斜校正扫描
公开(公告)号：US07149015B2
公开(公告)日：2006-12-12
申请号：US10751871
申请日：2004-01-05
申请人： Jan Hoogland , Curtis A. Shuman
发明人： Jan Hoogland , Curtis A. Shuman
IPC分类号： G03H1/04
CPC分类号： G03H1/0465 , G02B5/04 , G02B26/0816 , G03H1/04 , G03H1/26 , G03H1/265 , G11B7/0065 , G11B7/1359 , G11B7/1362 , G11B7/1398
摘要： Disclosed are optical systems and methods of producing obliquity corrected light beams, for example, holographic recording and retrieval systems that utilize an obliquity corrected reference beam. One method includes directing a light beam reflected from a prism mirror to a reference plane with an angle of incidence to the reference plane, wherein the prism mirror varies the width of the light beam according to the angle of incidence to the reference plane. The optical system may include a holographic data storage system and the reference plane may be associated with a holographic storage medium.
摘要翻译：公开了制造倾斜校正光束的光学系统和方法，例如，利用倾斜校正参考光束的全息记录和检索系统。一种方法包括将从棱镜反射的光束引导到参考平面与参考平面的入射角，其中棱镜镜根据入射到参考平面的角度来改变光束的宽度。光学系统可以包括全息数据存储系统，并且参考平面可以与全息存储介质相关联。

2. 发明授权

US5657164A Optical beamsplitter 失效
标题翻译：光分束器
公开(公告)号：US5657164A
公开(公告)日：1997-08-12
申请号：US445834
申请日：1995-05-22
申请人： Curtis A. Shuman
发明人： Curtis A. Shuman
IPC分类号： G02B27/10 , G02B27/14 , G02B27/28 , G11B7/135 , G11B7/00
CPC分类号： G02B27/16 , G02B27/143 , G02B27/148 , G02B27/283 , G11B7/1356 , G11B7/1359 , G11B7/1362 , G11B7/1376 , G11B7/1395
摘要： An optical beamsplitter comprises a right angle prism having a hypotenuse and two legs wherein the hypotenuse includes an optically selective coating deposited thereon. An optical element is positioned adjacent the hypotenuse such that the hypotenuse and the optical element form a beamsplitting interface. Various optical elements are utilized to achieve the desired spatial and angular relationships between incoming and outgoing light beams. Several embodiments are disclosed wherein the optical element can comprise a flat plate for providing spatial offset, a wedged plate for producing spatial and angular offset, a lens for adding optical power, or a faceted thin plate.
摘要翻译：光分束器包括具有斜边和两条腿的直角棱镜，其中斜边包括沉积在其上的光学选择性涂层。光学元件位于斜边附近，使得斜边和光学元件形成分束界面。利用各种光学元件来实现入射光和出射光束之间的期望的空间和角度关系。公开了几个实施例，其中光学元件可以包括用于提供空间偏移的平板，用于产生空间和角度偏移的楔形板，用于添加光焦度的透镜或小平面薄板。

3. 发明授权

US5568315A Optical beamsplitter 失效
标题翻译：光分束器
公开(公告)号：US5568315A
公开(公告)日：1996-10-22
申请号：US446364
申请日：1995-05-22
申请人： Curtis A. Shuman
发明人： Curtis A. Shuman
IPC分类号： G02B27/10 , G02B27/14 , G02B27/28 , G11B7/135 , G02B5/30 , G11B7/00
CPC分类号： G02B27/16 , G02B27/143 , G02B27/148 , G02B27/283 , G11B7/1356 , G11B7/1359 , G11B7/1362 , G11B7/1376 , G11B7/1395
摘要： An optical beamsplitter comprises a right angle prism having a hypotenuse and two legs wherein the hypotenuse includes an optically selective coating deposited thereon. An optical element is positioned adjacent the hypotenuse such that the hypotenuse and the optical element form a beamsplitting interface. Various optical elements are utilized to achieve the desired spatial and angular relationships between incoming and outgoing light beams. Several embodiments are disclosed wherein the optical element can comprise a flat plate for providing spatial offset, a wedged plate for producing spatial and angular offset, a lens for adding optical power, or a faceted thin plate.
摘要翻译：光分束器包括具有斜边和两条腿的直角棱镜，其中斜边包括沉积在其上的光学选择性涂层。光学元件位于斜边附近，使得斜边和光学元件形成分束界面。利用各种光学元件来实现入射光和出射光束之间的期望的空间和角度关系。公开了几个实施例，其中光学元件可以包括用于提供空间偏移的平板，用于产生空间和角度偏移的楔形板，用于添加光焦度的透镜或小平面薄板。

4. 发明授权

US5331622A Compact optical head 失效
标题翻译：紧凑型光头
公开(公告)号：US5331622A
公开(公告)日：1994-07-19
申请号：US132129
申请日：1993-10-05
申请人： Charles H. Ernst , Curtis A. Shuman
发明人： Charles H. Ernst , Curtis A. Shuman
IPC分类号： G11B7/135 , G11B7/00
CPC分类号： G11B7/1378 , G11B7/1359 , G11B7/1365
摘要： A compact optical head for reading or writing data on an optical disc is disclosed wherein the optical head comprises an integrated laser diode/photodetector package, a half-cube beamsplitter, and an objective lens. Light emitted from a diode laser is in transmitted to the beamsplitter and deflected towards the objective lens. The objective lens focuses the incident light on a focal point on the surface of the disc. A reflected beam travels along the same path as the incident light and is deflected by the beamsplitter toward a photodetector contained in the integrated package, wherein the photodetector is displaced from the laser diode. Other embodiments of the beamsplitter are disclosed which include a wedged plate for transmitting collimated light emitted from the laser diode, and a cylindrical lens for introducing astigmatism into the reflected beam. The present invention provides a substantial reduction in the size and volume required by the optical head, advantageously allowing the head to be easily integrated with an actuator for focussing and tracking the incident beam on the disc.
摘要翻译：公开了一种用于在光盘上读取或写入数据的紧凑型光头，其中光头包括集成的激光二极管/光电检测器封装，半立方分布器和物镜。从二极管激光器发射的光被传送到分束器并朝向物镜偏转。物镜将入射光聚焦在光盘表面的焦点上。反射光束沿着与入射光相同的路径行进，并且被分束器朝向包含在集成封装中的光电检测器偏转，其中光电检测器从激光二极管位移。公开了分束器的其他实施例，其包括用于发射从激光二极管发射的准直光的楔形板和用于将像散导入反射光束的柱面透镜。本发明提供了光学头所需的尺寸和体积的显着减小，有利地允许头与致动器容易地集成，以便对光盘上的入射光束进行聚焦和跟踪。

5. 发明授权

US5646778A Optical beamsplitter 失效
公开(公告)号：US5646778A
公开(公告)日：1997-07-08
申请号：US445493
申请日：1995-05-22
申请人： Curtis A. Shuman
发明人： Curtis A. Shuman
IPC分类号： G02B27/10 , G02B27/14 , G02B27/28 , G11B7/135 , G02B5/30 , G11B7/00
CPC分类号： G02B27/16 , G02B27/143 , G02B27/148 , G02B27/283 , G11B7/1356 , G11B7/1359 , G11B7/1362 , G11B7/1376 , G11B7/1395
摘要： An optical beamsplitter comprises a right angle prism having a hypotenuse and two legs wherein the hypotenuse includes an optically selective coating deposited thereon. An optical element is positioned adjacent the hypotenuse such that the hypotenuse and the optical element form a beamsplitting interface. Various optical elements are utilized to achieve the desired spatial and angular relationships between incoming and outgoing light beams. Several embodiments are disclosed wherein the optical element can comprise a flat plate for providing spatial offset, a wedged plate for producing spatial and angular offset, a lens for adding optical power, or a faceted thin plate.

6. 发明授权

US5245174A Focus sensing apparatus utilizing a reflecting surface having variable reflectivity 失效
标题翻译：利用具有可变反射率的反射面的聚焦感测装置
公开(公告)号：US5245174A
公开(公告)日：1993-09-14
申请号：US902751
申请日：1992-06-23
申请人： Ivan Prikryl , Curtis A. Shuman , Hollis O'Neal Hall, II
发明人： Ivan Prikryl , Curtis A. Shuman , Hollis O'Neal Hall, II
IPC分类号： G11B7/09 , G11B7/135
CPC分类号： B82Y10/00 , G11B7/0908 , G11B7/0917 , G11B7/1356 , G11B2007/0919
摘要： An apparatus for evaluation of radiation beam geometry that finds application in determining the focus of an illuminating beam relative to an optical disk is disclosed herein. In one preferred embodiment, a light source generates a linearly polarized beam which is collimated by a collimating lens. The collimated beam is then converged by an objective lens onto the surface of the optical disk. The disk reflects the illuminating beam focused thereon back through the objective lens to a beam splitter. A portion of the optical energy incident on the beam splitter is then redirected to form a servo beam, wherein the degree of collimation of the servo beam is indicative of the focus position of the illuminating beam. A beam separation module, based on frustrated total reflection, having a reflectivity which varies in response to the angle of incidence of optical energy thereon is positioned to intercept the servo beam. The beam separation module is operative to separate the servo beam into transmitted and reflected beams of substantially similar shape and intensity. Electrical signals produced by photodetective elements in response to incidence of the transmitted and reflected beams thereon may then be used to generate a focus error signal.
摘要翻译：本文公开了一种用于评估在确定照明光束相对于光盘的焦点的应用中的辐射束几何的装置。在一个优选实施例中，光源产生由准直透镜准直的线偏振光束。准直光束然后被物镜会聚到光盘的表面上。盘将其上聚焦的照明光束反射回物镜到分束器。入射在分束器上的光能的一部分然后被重定向以形成伺服光束，其中伺服光束的准直程度指示照明光束的聚焦位置。基于沮丧的全反射的具有响应于其上的光能入射角而变化的反射率的光束分离模块被定位成拦截伺服光束。光束分离模块用于将伺服光束分离成基本相似形状和强度的透射和反射光束。然后可以使用由光敏元件响应于其上的透射光束和反射光束的入射而产生的电信号来产生聚焦误差信号。

7. 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。

8. 发明授权

US5155633A Anamorphic achromatic prism for optical disk heads 失效
标题翻译：用于光盘头的变形消色差棱镜
公开(公告)号：US5155633A
公开(公告)日：1992-10-13
申请号：US738115
申请日：1991-07-30
申请人： Steven L. Grove , Curtis A. Shuman
发明人： Steven L. Grove , Curtis A. Shuman
IPC分类号： G02B5/04 , G02B27/09 , G02B27/14 , G11B7/135
CPC分类号： G02B19/0009 , G02B19/0052 , G02B27/09 , G02B27/0972 , G02B27/1013 , G02B27/126 , G02B27/145 , G02B5/04 , G11B7/1356
摘要： A multi-element, air-spaced prism system for use in a reflective-type optical media device having a light source to provide an incident light beam provides an achromatic, anamorphic prism which corrects for astigmatism and ellipticity in the light beam from the light source. One embodiment of the prism system provides at least two reflections of a return beam from the reflective-type optical media. The return prism provides these reflections from various optical surfaces in the multi-element prism system. In one embodiment, the prism system also provides a reflection of a portion of the incident beam. This reflection is directed to a detector which can, for instance, monitor the intensity of the light beam.
摘要翻译：用于具有提供入射光束的光源的反射型光学介质装置的多元件空气间隔棱镜系统提供了一种消色差变形棱镜，其校正来自光源的光束中的散光和椭圆率。棱镜系统的一个实施例提供来自反射型光学介质的返回光束的至少两次反射。返回棱镜在多元件棱镜系统中提供来自各种光学表面的这些反射。在一个实施例中，棱镜系统还提供入射光束的一部分的反射。该反射被引导到检测器，其可以例如监视光束的强度。

9. 发明授权

US4998011A Flat plate focus sensing apparatus 失效
标题翻译：平板聚焦传感装置
公开(公告)号：US4998011A
公开(公告)日：1991-03-05
申请号：US438708
申请日：1989-11-17
申请人： Curtis A. Shuman
发明人： Curtis A. Shuman
IPC分类号： G01J1/02 , G02B3/00 , G02B5/04 , G11B7/09 , G11B7/135
CPC分类号： G02B3/005 , G02B5/045 , G11B7/0908 , G11B7/0917 , G11B7/1356 , G11B7/1365 , G11B7/1372 , G02B3/0031 , G11B2007/0919
摘要： An optical element microstructure detects changes in the propagation angle of an optical beam on a local basis. The optical element microstructure preferably comprises an array of structures which are small compared to the size of the beam. Detection is done on a local basis, with each optical element in the microstructure array perturbing the optical beam in a predictable manner. By virtue of the number of optical sensing elements, the microstructure array is less sensitive to flaws in the optical elements, as compared to a single optical component placed in the path of the light. In addition, the microstructure lends itself to mass production by replication, and other low cost methods such as injection molding.
摘要翻译：光学元件微结构在局部的基础上检测光束的传播角度的变化。光学元件微结构优选地包括与束的尺寸相比较小的结构阵列。在局部基础上进行检测，微结构阵列中的每个光学元件以可预测的方式扰乱光束。通过光学传感元件的数量，与放置在光路中的单个光学部件相比，微结构阵列对光学元件的缺陷不太敏感。此外，微结构通过复制以及其它低成本的方法如注射成型而大量生产。

10. 发明授权

US4441175A Partial beam focus sensing in an optical recording system 失效
标题翻译：光学记录系统中的部分光束聚焦感测
公开(公告)号：US4441175A
公开(公告)日：1984-04-03
申请号：US342459
申请日：1982-01-25
申请人： Curtis A. Shuman
发明人： Curtis A. Shuman
IPC分类号： G02B7/28 , G02B27/40 , G11B7/09 , G11B7/135 , G11C13/04 , H04N5/76 , G11B7/00
CPC分类号： G11B7/1381 , G02B27/40 , G11B7/0908 , G11B7/0916
摘要： Focus sensing using a light detector array is accomplished in an optical recording system using the light beam returned from the recording media through the objective focusing lens by passing the beam through a spherical focusing lens using a mask such as a knife edge which only passes a portion of the beam to the light detector array. The light detector array is matched to the mask and detects the different partial image patterns formed as a result of the close to focus condition with the recording media too far away from the objective lens and the near to focus condition with the media too close to the objective lens. In the focused condition, the light detector array receives a comparatively fine focused spot of light. Alternative embodiments of the present invention may use a cylindrical lens which in the focused condition creates a longitudinal bar of light. Further alternative embodiments may be made with a spherical Fresnel lens or a cylindrical Fresnel lens which create larger areas of light, round and bar shaped, respectively, in the focused condition.
摘要翻译：使用光检测器阵列的聚焦感测是在光记录系统中完成的，该光学记录系统使用通过物镜聚焦透镜从记录介质返回的光束，通过使用诸如刀刃之类的掩模将光束通过球面聚焦透镜，该掩模仅通过部分的光束到光检测器阵列。光检测器阵列与掩模匹配，并且检测由于靠近聚焦条件而形成的不同部分图像图案，其中记录介质离物镜太远，并且靠近对焦条件的介质太靠近物镜。在聚焦状态下，光检测器阵列接收较细的聚光点。本发明的替代实施例可以使用在聚焦状态下产生纵向光条的柱面透镜。可以使用球形菲涅尔透镜或圆柱形菲涅尔透镜来进一步替代实施例，其在聚焦状态下分别产生更大面积的光，圆形和棒状。

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