公开(公告)号：US20210319679A1

公开(公告)日：2021-10-14

申请号：US17226699

申请日：2021-04-09

申请人： Mark E. McDonald

发明人： Mark E. McDonald

IPC分类号： G08B13/189 ,  G08B25/10

摘要： A poaching detection apparatus includes a frame member with first and second reflectors mounted thereto. The reflectors mimic the reflective qualities of the eyes of certain animals; accordingly, the reflectors will appear to be animal eyes when a poacher shines a portably light on them. The poaching detection apparatus also includes at least one light sensor that, when struck by the light from a poacher using a “spotlighting” technique, causes the activation of at least one alarm and/or alert to deter the poacher and/or notify property owners or authorities of the presence of poachers

公开(公告)号：US06798586B1

公开(公告)日：2004-09-28

申请号：US10001354

申请日：2001-10-30

申请人： Richard F. Lyon ,  Mark E. McDonald ,  Timothy F. Slagle

发明人： Richard F. Lyon ,  Mark E. McDonald ,  Timothy F. Slagle

IPC分类号： G02B204

CPC分类号： G02B27/0025 ,  G02B5/04 ,  G02B15/173

摘要： A corrector optic is provided, for use in a camera system that includes a thick prism in front of the focal plane. The corrector optic includes preferably two lenses to be aligned on the optical axis of the camera system. When coupled within the camera system, the corrector optic is disposed between the objective lens and the prism. A preferred corrector optic includes a positive lens having a convex surface facing the objective lens and a negative lens having a concave surface facing the prism, such that the lenses together reduce spherical and coma aberrations caused by imaging through the prism. Chromatic aberration is also reduced by choosing the negative lens material to have a higher index of refraction and higher dispersion than those of the positive lens material.

摘要翻译： 提供了一种补偿光学元件，用于在焦平面前方包括厚棱镜的照相机系统中。 校正器光学器件优选地包括要在照相机系统的光轴上对准的两个透镜。 当在相机系统内耦合时，校正器光学元件设置在物镜和棱镜之间。 优选的校正光学元件包括具有面向物镜的凸表面的正透镜和具有面向棱镜的凹表面的负透镜，使得透镜在一起减少由棱镜成像引起的球面和彗形像差。 通过选择负透镜材料具有比正透镜材料更高的折射率和更高的色散性，还可以降低色差。

公开(公告)号：US06540397B2

公开(公告)日：2003-04-01

申请号：US09828693

申请日：2001-04-05

申请人： Jiro Yoshinari ,  Takuya Tsukagoshi ,  Hideki Hirata ,  Naoki Hayashida ,  Tokuyuki Honda ,  Mark E. McDonald ,  Michael V. Morelli ,  Andrew J. Daiber ,  Sanjoy Ghose ,  Lambertus Hesselink ,  Shunichi Nishimura ,  Sergei Sochava

发明人： Jiro Yoshinari ,  Takuya Tsukagoshi ,  Hideki Hirata ,  Naoki Hayashida ,  Tokuyuki Honda ,  Mark E. McDonald ,  Michael V. Morelli ,  Andrew J. Daiber ,  Sanjoy Ghose ,  Lambertus Hesselink ,  Shunichi Nishimura ,  Sergei Sochava

IPC分类号： G04B3700

CPC分类号： G11B7/0065 ,  G11B7/007 ,  G11B7/0938 ,  G11B7/24 ,  G11B7/243 ,  G11B7/244 ,  G11B7/2534 ,  G11B7/2595 ,  G11B2007/0013

摘要： An optical information medium comprising at least two data layers for bearing recorded information, and a servo layer for bearing tracking servo, information which is independently formed from the data layers; wherein the medium is used with a recording or reading system wherein a data beam for recording or reading the data in the data layer and a servo beam for reading the tracking servo information in the servo layer are used, and the servo layer is read by the servo beam that had passed through the data layer; and a filter layer is disposed between the data layer and the servo layer, and the filter layer exhibits higher absorption to the data beam than to the servo beam.

摘要翻译： 一种光信息介质，包括用于承载记录信息的至少两个数据层，以及用于承载跟踪伺服的伺服层，由数据层独立地形成的信息; 其中介质与记录或读取系统一起使用，其中使用用于记录或读取数据层中的数据的数据束和用于读取伺服层中的跟踪伺服信息的伺服光束，并且伺服层被读取 通过数据层的伺服光束; 并且在数据层和伺服层之间设置过滤层，并且过滤层对数据束的吸收比对伺服光束的吸收更高。

公开(公告)号：US06331904B1

公开(公告)日：2001-12-18

申请号：US09477230

申请日：2000-01-04

申请人： Andrew J. Daiber ,  Mark E. McDonald

发明人： Andrew J. Daiber ,  Mark E. McDonald

IPC分类号： G03H122

CPC分类号： H04N5/7458 ,  G02B17/0605 ,  G02B17/0812 ,  G03H1/02 ,  G03H1/26 ,  G03H1/265 ,  G03H2001/0216 ,  G03H2223/17 ,  G03H2223/24 ,  G06K19/16

摘要： A reference beam telescope, which is also referred to as a relay imaging system for a reference beam, using reflection optics is disclosed. The relay imaging system according to the present invention comprises at least one concave mirror and one convex mirror. A reference beam is reflected at least twice by the concave mirror and once by the convex mirror. The output reference beam is collimated if the input reference beam is collimated. This relay imaging system is used in a holographic storage system to deliver the reference beam to the holographic storage medium. In particular, this system can be used for angular multiplexing in a holographic storage system.

摘要翻译： 公开了一种参考光束望远镜，其也被称为用于参考光束的中继成像系统，其使用反射光学器件。 根据本发明的中继成像系统包括至少一个凹面镜和一个凸面镜。 参考光束由凹面镜反射至少两次，一次由凸面镜反射。 如果输入参考光束被准直，则输出参考光束是准直的。 该中继成像系统用于全息存储系统中以将参考光束传送到全息存储介质。 特别地，该系统可用于全息存储系统中的角度多路复用。

公开(公告)号：US6147782A

公开(公告)日：2000-11-14

申请号：US071478

申请日：1998-05-01

申请人： Andrew J. Daiber ,  Mark E. McDonald

发明人： Andrew J. Daiber ,  Mark E. McDonald

IPC分类号： G03H1/30 ,  G11B7/0065 ,  G11B7/135 ,  G03H1/00

CPC分类号： G03H1/30 ,  G11B7/0065 ,  G11B7/1362 ,  G11B7/13927 ,  G03H2001/0417 ,  G03H2222/31 ,  G03H2230/10

摘要： A positive unit magnification reflective head is used to back-reflect a primary light beam, for storing reflection microholograms at the coincident foci of the primary and reflected beams. Imaging the primary beam focus onto itself at positive unit magnification allows increasing system tolerance to tilts and transverse misalignments between the primary and reflective heads. Holograms are stored at multiple depths in a holographic storage medium. Tunable-focus primary and reflective heads are positioned on opposite sides of the storage medium. The reflective head images each storage location onto itself at positive unit magnification. Suitable reflective heads include: two lenses in an f-2f-f configuration and a planar mirror; a lens and a corner cube; a thin lens and a thick lens with a coated reflective back surface; and a thin lens and a back-coated gradient-index (GRIN) lens. To control the polarization of the reflected beam, the corner cube may include a plastic filler bonded on the back of the reflective surface. The filler index of refraction is chosen such that the primary beam is incident on the reflective surface of the corner cube at the critical angle.

摘要翻译： 正单位放大率反射头用于反射一次光束，用于在初级和反射光束的重合焦点处存储反射微波照相。 将主光束聚焦以正单位放大率成像，可以增加系统对初级和反射头之间的倾斜和横向不对准的容差。 全息图存储在全息存储介质中的多个深度处。 可调聚焦主反射头位于存储介质的相对侧。 反射头以正单位放大率将每个存储位置映射到自身上。 合适的反射头包括：f-2f-f构造的两个透镜和平面镜; 镜头和角落立方体; 薄透镜和具有涂层反射背面的厚透镜; 以及薄透镜和背涂层梯度折射率（GRIN）透镜。 为了控制反射光束的偏振，角隅棱镜可以包括粘合在反射表面背面上的塑料填料。 选择填料折射率使得主光束以临界角入射在角立方体的反射表面上。

公开(公告)号：US06104511A

公开(公告)日：2000-08-15

申请号：US116291

申请日：1998-07-16

申请人： Lambertus Hesselink ,  Mark E. McDonald ,  John F. Heanue ,  Andrew J. Daiber

发明人： Lambertus Hesselink ,  Mark E. McDonald ,  John F. Heanue ,  Andrew J. Daiber

IPC分类号： G03H1/26 ,  G06K19/16 ,  G11C13/04

CPC分类号： G03H1/02 ,  G03H1/26 ,  G03H1/265 ,  G06K19/16 ,  G11C13/042 ,  G03H2001/0216 ,  G03H2223/24

摘要： The holographic storage and retrieval system according to the present invention comprises one convex reflector and one concave reflector having the same optical axis. The reflective surfaces of the two reflectors are opposite each other. The concave reflector is normally larger than the convex reflector. The holographic storage medium is positioned at the focal surface of the concave reflector. The spherical reflector system according to the present invention has nearly ideal performance off-axis: high bandwidth, low aberration imaging is permitted at a number of radial and axial locations. Thus, multiple SLM/CCD pairs can be placed off-axis to access the same storage medium and implement multiple interconnects.

摘要翻译： 根据本发明的全息存储和取回系统包括一个凸反射器和一个具有相同光轴的凹面反射器。 两个反射器的反射面彼此相对。 凹面反射器通常大于凸面反射器。 全息存储介质位于凹面反射体的焦面上。 根据本发明的球面反射器系统具有离轴几乎理想的性能：在多个径向和轴向位置允许高带宽，低像差成像。 因此，多个SLM / CCD对可以离轴放置以访问相同的存储介质并实现多个互连。

公开(公告)号：US5066108A

公开(公告)日：1991-11-19

申请号：US455115

申请日：1989-12-22

申请人： Mark E. McDonald

发明人： Mark E. McDonald

IPC分类号： B60K35/00 ,  G02B27/28 ,  G02F1/13 ,  G02F1/133 ,  G02F1/1335

CPC分类号： G02F1/133528

摘要： A display having a linearly polarized image source, a quarter-wave retarder for transforming the linearly polarized illumination to circularly polarized illumination, imaging elements responsive to the circularly polarized illumination for producing viewable circularly polarized imaging illumination, and a circular imaging illumination to viewable linearly polarized imaging illumination. The circular polarizer includes a quarter-wave retarder for transforming the circular light to linearly polarized light, and a linear polarizer configured to transmit the linearly polarized imaging illumination. Contrast enhancement is achieved by the circular polarizer which functions to block ambient light reflected from the front element of the imaging elements as a result of transmission through the circular polarizer.

公开(公告)号：US07155105B2

公开(公告)日：2006-12-26

申请号：US11338930

申请日：2006-01-25

申请人： Mark E. McDonald

发明人： Mark E. McDonald

IPC分类号： G02B6/00 ,  G02B6/34

CPC分类号： G02B6/266 ,  G02B5/04 ,  G02F1/0147 ,  G02F2203/48

摘要： A variable optical attenuator (VOA) for use in an optical fiber communication system has a substrate, a thermal gradient prism and a heating element deposited on the prism. Heat is applied to the thermal gradient prism through the heating element. An optical signal is input into the prism via an optical signal input source. The optical signal traveling through the prism may be deflected due to a thermal gradient of the prism. The deflected optical signal is output into an optical signal output carrying medium. An optical signal strength measuring apparatus may measure a parameter related to the strength of the optical signal output into the optical signal output carrying medium.

公开(公告)号：US07024091B2

公开(公告)日：2006-04-04

申请号：US10745010

申请日：2003-12-23

申请人： Mark E. McDonald

发明人： Mark E. McDonald

IPC分类号： G02B6/00

CPC分类号： G02B6/266 ,  G02B5/04 ,  G02F1/0147 ,  G02F2203/48

摘要： A variable optical attenuator (VOA) for use in an optical fiber communication system has a substrate, a thermal gradient prism and a heating element deposited on the prism. Heat is applied to the thermal gradient prism through the heating element. An optical signal is input into the prism via an optical signal input source. The optical signal traveling through the prism may be deflected due to a thermal gradient of the prism. The deflected optical signal is output into an optical signal output carrying medium. An optical signal strength measuring apparatus may measure a parameter related to the strength of the optical signal output into the optical signal output carrying medium.

公开(公告)号：US06288986B1

公开(公告)日：2001-09-11

申请号：US09229012

申请日：1999-01-12

申请人： Mark E. McDonald ,  Robert R. McLeod

发明人： Mark E. McDonald ,  Robert R. McLeod

IPC分类号： G11B700

CPC分类号： G11B7/1381 ,  G11B7/0908 ,  G11B7/0916 ,  G11B7/0917

摘要： An improved focus error signal generator device and an optical data delivery and detection system including an optical lens disposed in the path of a return read beam and a birefringent plate disposed in the path of the return beam of light after the optical lens, wherein the birefringent plate provides for a first and second focal plane of corresponding first and second polarization. A pinhole is disposed in the path of the return read beam after the birefringent plate and in close proximity to first and second focal planes. A polarizing beam splitter is positioned after the second focal plane and serves to split the return read beam into two light beams of first and second polarization. First and second detectors are disposed in the path of corresponding first and second polarization light beams. The detectors are connected to the inputs of an electrical differencing circuit that has an output to an optical head servo system.

摘要翻译： 一种改进的聚焦误差信号发生器装置和光学数据传送和检测系统，包括设置在返回读取光束的路径中的光学透镜和布置在光学透镜之后的返回光束的路径中的双折射板，其中双折射 板提供相应的第一和第二极化的第一和第二焦平面。 在双折射板之后并且靠近第一焦平面和第二焦平面，针孔设置在返回读取光束的路径中。 偏振分束器位于第二焦平面之后，用于将返回读取光束分成两束第一和第二偏振光束。 第一和第二检测器设置在对应的第一和第二偏振光束的路径中。 检测器连接到具有输出到光头伺服系统的电差分电路的输入端。