公开(公告)号：US3984671A

公开(公告)日：1976-10-05

申请号：US502138

申请日：1974-08-30

申请人： James C. Administrator of the National Aeronautics and Space Administration, with respect to an invention of Fletcher ,  Richard E. Haskell

发明人： James C. Administrator of the National Aeronautics and Space Administration, with respect to an invention of Fletcher ,  Richard E. Haskell

IPC分类号： G06E1/04 ,  G06F17/15 ,  G06K9/74 ,  G06F15/34 ,  G02B27/38 ,  G03H1/28

CPC分类号： G06K9/745 ,  G06E1/04 ,  Y10S359/90

摘要： A method of producing single-class and multi-class composite classification maps from multispectral data is provided. The multispectral data is transformed into a binary matrix format which is then encoded on an optical medium such as photographic film. The encoded data is holographically correlated with coded patterns representing selected spectral signatures to produce signal-class classification maps. Several single-class maps are optically superimposed to produce multi-class composite classification maps.

摘要翻译： 提供了一种从多光谱数据生成单类和多类复合分类图的方法。 多光谱数据被转换成二进制矩阵格式，然后将其编码在诸如照相胶片的光学介质上。 编码数据与表示所选频谱签名的编码模式全息地相关，以产生信号级分类图。 多个单一类映射被光学叠加以产生多类复合分类图。

公开(公告)号：US3955095A

公开(公告)日：1976-05-04

申请号：US512228

申请日：1974-10-04

申请人： George Simon Gadbois ,  Frank Rowland Ragland, Jr.

发明人： George Simon Gadbois ,  Frank Rowland Ragland, Jr.

IPC分类号： G01B11/00 ,  G01B11/14 ,  G02B27/42 ,  G02B27/38

CPC分类号： G01B11/00 ,  G01B11/14 ,  G02B27/42

摘要： The average aperture width in a small area of an apertured member, such as a shadow mask for a cathode ray tube, is determined by passing a beam of substantially monochromatic light through an area of the member to form an interference pattern, detecting the intensities of at least two light fringes of the interference pattern, generating electrical signals which are representative of the detected intensities and then deriving the average width of apertures in the lit area of the members from the generated signals.

摘要翻译： 多孔构件的小面积中的平均孔径宽度，例如用于阴极射线管的阴影掩模，通过使基本上单色的光束通过构件的区域以形成干涉图案来确定其强度， 产生干涉图案的至少两个光条纹，产生代表检测到的强度的电信号，然后从所生成的信号中导出成员的点亮区域中的孔径的平均宽度。

公开(公告)号：US3891976A

公开(公告)日：1975-06-24

申请号：US43291274

申请日：1974-01-14

申请人： GTE LABORATORIES INC

发明人： CARLSEN W JOHN

IPC分类号： G11C13/04 ,  G02B27/38

CPC分类号： G11C13/042

摘要： A holographic data processing apparatus is described wherein data is holographically recorded on a recording medium with the data arranged in groups of superimposed holograms of data bits. An optical data beam and an optical reference beam are passed through deflectors to intersect to form the local holographic pattern at the recording medium. The location of intersection is controlled by a page deflector and the angle of intersection is controlled by a data deflector. Each data bit is recorded with a distinct angular relationship between the intersecting data and reference beams. During reconstruction the data at a page location are projected from the recording medium in an array wherein the position of each data bit is related to the discrete recording angle. A feedback arrangement to maintain registration of the beams is described.

摘要翻译： 描述了一种全息数据处理装置，其中数据被全息地记录在记录介质上，其中数据被排列成数据位的叠加全息图。 光学数据光束和光学参考光束通过偏转器相交以在记录介质处形成局部全息图案。 交叉点的位置由页面偏转器控制，交点由数据偏转器控制。 每个数据位以相交数据和参考光束之间的明显的角度关系记录。 在重建期间，页面位置处的数据从记录介质以阵列中投影，其中每个数据位的位置与离散记录角相关。 描述了维持梁的配准的反馈装置。

公开(公告)号：US3874785A

公开(公告)日：1975-04-01

申请号：US36475873

申请日：1973-05-29

申请人： THOMSON CSF

发明人： HUIGNARD JEAN PIERRE

IPC分类号： G03H1/00 ,  G02F1/29 ,  G02F1/33 ,  G11C13/04 ,  G02B27/38

CPC分类号： G11C13/042 ,  G02F1/29 ,  G02F1/33

摘要： The present invention relates to optical data recording and read-out. More particularly, it is concerned with optical deflector arrangements used in holographic storage devices. In accordance with the invention, there is provided an optical deflector arrangement wherein a beam projected onto a storage area can be steered to take n distinct angular position making it possible the selective record or read out of a plurality of elementary holograms superimposed on one another in said area.

摘要翻译： 本发明涉及光学数据记录和读出。 更具体地，涉及用于全息存储装置中的光学偏转器装置。 根据本发明，提供了一种光学偏转器装置，其中投射到存储区域上的光束可以被转向以获得不同的角度位置，使得可以选择性地记录或读出彼此叠加的多个基本全息图 说的地区。

公开(公告)号：US3790280A

公开(公告)日：1974-02-05

申请号：US3790280D

申请日：1972-05-03

申请人： WESTERN ELECTRIC CO

发明人： HEINZ R ,  OEHRLE R

IPC分类号： G02B27/46 ,  G03F1/84 ,  G03F7/20 ,  G01N21/32 ,  G02B27/38

CPC分类号： G03F1/84 ,  G02B27/46 ,  G03F7/70616 ,  G03F7/7065

摘要： A spatial filtering system for inspecting integrated circuit photomasks, and the like. The system includes a spatial filter comprising a matrix-like array of opaque regions on a transparent field, as well as one pair of opaque compensating elements for each element edge orientation in the photomask to be inspected. The opaque regions block the d.c. and lower spatial frequencies of the periodic photomask feature information, while the compensating elements block the corresponding higher spatial frequencies (i.e., the edge information). Use of the system significantly improves the signal-to-noise ratio of the filtered image.

摘要翻译： 用于检查集成电路光掩模的空间滤波系统等。 该系统包括空间滤波器，其包括在透明场上的不透明区域的矩阵状阵列，以及用于要检查的光掩模中的每个元件边缘取向的一对不透明补偿元件。 不透明区域阻止直流。 并且周期性光掩模特征信息的空间频率较低，而补偿元件则阻塞对应的较高空间频率（即，边缘信息）。 系统的使用显着提高了滤波图像的信噪比。

公开(公告)号：US3703724A

公开(公告)日：1972-11-21

申请号：US3703724D

申请日：1971-07-22

申请人： KMS IND INC

发明人： THOMAS CARLTON E

IPC分类号： G02B27/44 ,  G03B15/00 ,  G11B7/003 ,  G11B7/085 ,  G11C13/04 ,  H04N5/84 ,  G11B7/00 ,  G02B27/38

CPC分类号： H04N5/89 ,  G02B5/188 ,  G02B26/106 ,  G03B15/00 ,  G11B7/0031 ,  G11B7/085 ,  G11C13/042

摘要： A zone plate scanner for wide bandwidth laser recorders utilizing a rotating disc having pairs of peripheral windows, each containing a zone plate, one set of windows in each pair being spaced circumferentially at a constant radius, and a second set being similarly spaced circumferentially but each having a different radius. The spacing changes the grating frequency for each pair and encodes each track on a moving film in a manner which eliminates interference in close spacing and reduces the criticality of readout equipment.

摘要翻译： 一种用于宽带宽激光记录器的区域扫描器，其利用具有成对的外围窗口的旋转盘，每个外围窗口包含区域板，每对中的一组窗口以恒定的半径周向间隔开，并且第二组沿周向相似地间隔开， 具有不同的半径。 间隔改变了每对的光栅频率，并以一种消除干涉紧密间隔的方式对移动胶片上的每个轨道进行编码，并降低了读出设备的临界性。

公开(公告)号：US3642350A

公开(公告)日：1972-02-15

申请号：US3642350D

申请日：1969-11-26

申请人： IBM

发明人： HIRSCH PETER M ,  JORDAN JAMES A JR ,  LESEM LOUIS B

IPC分类号： G03H1/08 ,  G06E3/00 ,  G06G9/00 ,  G02B27/38

CPC分类号： G03H1/08 ,  G06E3/001

摘要： A method of optical filtering in which a phase object is constructed in accordance with the desired convolutional filter operator and during the filtering operation incoherent light is used. This type of incoherent filtering method is made applicable to filter operators having negative portions which would require negative intensities by biasing the phase object to make is everywhere nonnegative. The bias is then removed during display by means of a vidicon system.

摘要翻译： 使用光滤波方法，其中根据期望的卷积滤波器算子构建相位对象，并且在滤波操作过程中使用非相干光。 这种类型的非相干滤波方法适用于具有负部分的滤波器操作符，其通过偏置相位对象使得在任何地方都为非负值而需要负强度。 然后通过视频系统显示偏移。

公开(公告)号：US3620598A

公开(公告)日：1971-11-16

申请号：US3620598D

申请日：1970-03-06

申请人： WESTINGHOUSE ELECTRIC CORP

发明人： BRANDT GERALD B

IPC分类号： G02B27/46 ,  G03H1/32 ,  G02B27/38

CPC分类号： G02B27/46 ,  G03H1/32

摘要： Apparatus for improving the quality of an input transparency used in an optical processor. The input transparency is illuminated with coherent light which has been passed through a fine grating or grid. The grid causes the transparency to be broken up into a plurality of diffraction patterns. When the image is reconstructed in the output plane, there is a marked decrease in the localization of reflection noise which would otherwise have been caused by the system.

公开(公告)号：US3619033A

公开(公告)日：1971-11-09

申请号：US3619033D

申请日：1968-09-25

申请人： SPERRY RAND CORP

发明人： MCMAHON DONALD H

IPC分类号： G02B26/10 ,  H04N3/04 ,  G02B5/18 ,  G02B27/38

CPC分类号： G02B26/106 ,  H04N3/04

摘要： A light beam scanning apparatus including a rotatable disc having a plurality of focusing elements disposed in an annular or spiral pattern such that an impinging light beam is intercepted in succession by each of the focusing elements and deflected along a plurality of adjacent lines thereby providing, in accordance with the characteristics of the focusing elements, either a two-dimensional scan pattern oriented respectively transverse or parallel to the direction of the focused light or alternatively a three-dimensional scan pattern encompassing the areas of the orthogonal two-dimensional patterns.

公开(公告)号：US3603668A

公开(公告)日：1971-09-07

申请号：US3603668D

申请日：1970-01-29

申请人： PHILIPS CORP

发明人： DEBITETTO DOMINICK JOHN

IPC分类号： G02B5/18 ,  G03H1/24 ,  G02B27/38

CPC分类号： G03H1/24 ,  G02B5/1814

摘要： A device for reconstructing a hologram using white light, by providing in the optical path before or after the hologram a dispersion-compensating element. A preferred embodiment employs a diffraction grating. A relatively efficient and inexpensive transmission diffraction grating is obtained by a pile of aligned, superimposed replicas having the same spacing.