公开(公告)号：WO1997012264A3

公开(公告)日：1997-04-03

申请号：PCT/IL1996000097

申请日：1996-09-04

Applicant: YEDA RESEARCH AND DEVELOPMENT CO. LTD. ,  DANZIGER, Yochay ,  HASMAN, Erez ,  FRIESEM, Asher, A.

Inventor： YEDA RESEARCH AND DEVELOPMENT CO. LTD.

IPC: G02B05/18

公开(公告)号：WO1996041217A1

公开(公告)日：1996-12-19

申请号：PCT/US1996008804

申请日：1996-06-05

Applicant: ECHELLE, INC. ,  BLOOM, David, M. ,  CORBIN, Dave, B. ,  BANYAI, William, C. ,  STAKER, Bryan, P.

Inventor： ECHELLE, INC.

IPC: G02B05/18

CPC classification number: G02B5/1828 ,  G02B26/0808 ,  Y10S359/904

Abstract: A diffraction grating light valve modulates an incident beam of light. A plurality of elongated elements each have a reflective surface. The elongated elements are suspended with their respective ends substantially coplanar. Alternate ones of the elongated elements are electrically coupled for receiving a first bias voltage. The interdigitated elongated elements are electrically coupled for receiving a second bias voltage. By applying an appropriate first and second biasing voltages, all the reflective surfaces can be maintained in a first plane. When all the elongated elements are in the first plane, the diffraction grating light valve reflects the beam of light. A predetermined group of the elongated elements, preferably alternate ones, are deformable to be substantially coplanar in a second plane which is parallel to the first plane. When the predetermined group of elements is in the second plane, the diffraction grating light valve diffracts the beam of light.

Abstract translation: 衍射光栅光阀调制入射光束。 多个细长元件各自具有反射表面。 细长元件悬挂在其各自的端部基本上共面。 细长元件中的另一个被电耦合以接收第一偏置电压。 交叉的细长元件被电耦合以接收第二偏置电压。 通过施加适当的第一和第二偏置电压，所有的反射表面都可以保持在第一平面中。 当所有细长元件在第一平面中时，衍射光栅光阀反射光束。 预定组的细长元件，优选地是交替的，可在可平行于第一平面的第二平面中变形为基本共面。 当预定的元件组在第二平面中时，衍射光栅光阀衍射出光束。

公开(公告)号：WO1996007939A1

公开(公告)日：1996-03-14

申请号：PCT/AU1995000542

申请日：1995-08-25

Applicant: MIKOH TECHNOLOGY LIMITED ,  LEIGH-JONES, Peter ,  ALEXANDER, Brian, Frederick ,  ATHERTON, Peter, Samuel

Inventor： MIKOH TECHNOLOGY LIMITED

IPC: G02B05/18

CPC classification number: G02B5/1842 ,  G02B5/1847 ,  G03H1/0011 ,  G06K19/06046 ,  G06K19/16

Abstract: A diffraction surface (100) and a method of making the surface. The surface (100) may be applied to labels and other items, to identify the origin of the goods to which the label is attached. The surface (100) can include a block grating. For example, the surface could include a plurality of blocks (350) which adapted when illuminated will produce a recognisable image on an intercepting surface. The diffraction grating is manufactured by processing a data stream indicative of the image. Processing of the data stream includes obtaining a Fourier Transform of the data stream. Preferably, the data stream is clipped and quantised.

Abstract translation: 衍射面（100）及其制作方法。 表面（100）可以应用于标签和其他物品，以标识标签附着的货物的来源。 表面（100）可以包括块状光栅。 例如，表面可以包括多个块（350），其适于当被照亮时将在拦截表面上产生可识别的图像。 通过处理指示图像的数据流来制造衍射光栅。 数据流的处理包括获得数据流的傅里叶变换。 优选地，数据流被剪切和量化。

公开(公告)号：WO1995034007A1

公开(公告)日：1995-12-14

申请号：PCT/US1995005779

申请日：1995-04-28

Applicant: LOWENHAR, Herman, L. ,  HULLAND, Burton, L.

IPC: G02B05/18

CPC classification number: G02B6/02061 ,  G02B6/02066 ,  G02B6/02195 ,  G02B6/2826 ,  G02B6/4202 ,  G02B6/4203 ,  H01S3/1055 ,  H01S5/141 ,  H01S5/146 ,  H04J14/0226 ,  H04J14/0246 ,  H04J14/025

Abstract: A multi-line continuous wideband tunable laser (1) utilizes a symmetric or asymmetric grating (5) and a plurality of optical fibers (3), each of which forms a part of a respective laser cavity optical axis. By simultaneously altering both the periodicity of the intersections of the grating (5) with the plurality of optical axes established by the plurality of optical fibers (3) and the effective cavity length of each laser (1), a single-line spectral output is achieved at any desired point in the operating band.

Abstract translation: 多线连续宽带可调激光器（1）利用对称或不对称光栅（5）和多个光纤（3），每个光纤形成相应的激光腔光轴的一部分。 通过同时改变光栅（5）的交点与由多根光纤（3）建立的多个光轴和每个激光（1）的有效腔长度的周期性，单线光谱输出为 在操作带中的任何所需点实现。

公开(公告)号：WO1995018393A1

公开(公告)日：1995-07-06

申请号：PCT/US1994013896

申请日：1994-12-05

Applicant: EASTMAN KODAK COMPANY

Inventor： EASTMAN KODAK COMPANY ,  MEYERS, Mark, Marshall ,  BIETRY, Joseph, Raymond

IPC: G02B05/18

CPC classification number: G02B5/1895 ,  G02B5/1876 ,  G02B27/0037 ,  G02B27/4211 ,  G02B27/4216

Abstract: A hybrid refractive and diffractive achromatic lens (10, 20, 30) suited for single-use or inexpensive single-lens cameras (100) operating in visible spectral range. The lens comprises a body of optically transmissive material having an index of refraction at a wavelength approximately at the center of said range of at least 1.45. The lens body having a first and second surface (1, 2) on opposite sides thereof, at least one of said surfaces (1, 1', 1"; 2, 2', 2") being curved to provide a refractive portion having power and introduces chromatic aberration, the lens (10, 20, 30) having a diffractive portion (3, 3', 3") having power which reduces the chromatic aberration introduced by the refractive portions.

Abstract translation: 适用于在可见光谱范围内工作的一次性或廉价的单镜头相机（100）的混合折射和衍射消色差透镜（10,20,30）。 该透镜包括透光材料体，其具有大致在该范围至少为1.45的中心处的波长的折射率。 所述透镜体在其相对侧上具有第一和第二表面（1,2），所述表面（1,1'，2,2'，2“）中的至少一个被弯曲以提供具有 功率并且引入色差，具有具有减少由折射部分引入的色差的功率的衍射部分（3,3'，3“）的透镜（10,20,30）。

公开(公告)号：WO1995018392A1

公开(公告)日：1995-07-06

申请号：PCT/US1994013894

申请日：1994-12-05

Applicant: EASTMAN KODAK COMPANY

Inventor： EASTMAN KODAK COMPANY ,  MEYERS, Mark, Marshall ,  SCHICKLER, Mark, Edward

IPC: G02B05/18

CPC classification number: G02B5/1852 ,  B24B13/046 ,  Y10T407/26

Abstract: A method of manufacturing a diffractive surface comprising: rotating a surface to be cut at a rate W > 1,500 RPM; translating a cutting tip T at low speed V where V

Abstract translation: 一种制造衍射表面的方法，包括：以> 1500RPM的速度旋转要切割的表面; 在V <1.2mm /分钟的低速V下平移切割尖端T; 并用切割头T切割表面。

公开(公告)号：WO1995002200A1

公开(公告)日：1995-01-19

申请号：PCT/AU1994000381

申请日：1994-07-08

Applicant: COMMONWEALTH SCIENTIFIC AND INDUSTRIAL RESEARCH ORGANISATION ,  LEE, Robert, Arthur

Inventor： COMMONWEALTH SCIENTIFIC AND INDUSTRIAL RESEARCH ORGANISATION

IPC: G02B05/18

CPC classification number: G02B5/1842 ,  B42D25/328

Abstract: A diffractive device has a surface relief structure which, when illuminated by a light source, generates at least two diffraction images which can be observed from particular ranges of viewing angles around the device. At least one surface region (3) has two or more superimposed diffractive surface structures (1, 2), each of which gives rise to a separate diffraction image or component of a diffraction image. The diffractive device is particularly suitable as anti-forgery security device on banknotes, credit cards, cheques, share certificates and other similar documents.

Abstract translation: 衍射装置具有表面浮雕结构，当被光源照射时，产生至少两个衍射图像，该衍射图像可以从设备周围的特定视角范围观察到。 至少一个表面区域（3）具有两个或更多个叠加的衍射表面结构（1,2），每个衍射表面结构（1,2）产生分立的衍射图像或衍射图像的分量。 该衍射装置特别适用于纸币，信用卡，支票，股票和其他类似文件上的防伪安全装置。

公开(公告)号：WO1991002991A1

公开(公告)日：1991-03-07

申请号：PCT/GB1990001295

申请日：1990-08-16

Applicant: BRITISH TELECOMMUNICATIONS PUBLIC LIMITED COMPANY ,  WELBOURN, Anthony, David

Inventor： BRITISH TELECOMMUNICATIONS PUBLIC LIMITED COMPANY

IPC: G02B05/18

CPC classification number: H01S3/1055 ,  G02B5/1828

Abstract: A diffraction grating assembly is constructed from a silicon substrate (2). The diffraction grating assembly comprises a support member (1a) formed in a cavity (4) etched in the substrate (2). A diffraction grating (1) is formed on the support member (1a), and means (3) are provided for supporting the support member on the substrate (2) for pivotal movement. Means (5a, 5b) are also provided for controlling the pivotal movement of the support member (1a).

Abstract translation: 衍射光栅组件由硅衬底（2）构成。 衍射光栅组件包括形成在蚀刻在衬底（2）中的空腔（4）中的支撑构件（1a）。 衍射光栅（1）形成在支撑部件（1a）上，并且设置有用于将支撑部件支撑在基板（2）上用于枢转运动的装置（3）。 还设置有用于控制支撑构件（1a）的枢转运动的装置（5a，5b）。

公开(公告)号：WO1989001170A1

公开(公告)日：1989-02-09

申请号：PCT/JP1988000711

申请日：1988-07-15

Applicant: YANG, Zunxi

IPC: G02B05/18

CPC classification number: E04F13/0871 ,  B44F1/04 ,  B44F1/10

Abstract: This invention relates to a kind of novel building decorative materials. A model disk or a mold of press rollers is duplicated by use of a dry plate produced by laser holography or etch-graving by diffraction grating of rays of light and then is pressed onto a base material (1) such as transparent glass, hard glass or a propylenic acid film to form a laser hologram or diffraction grating pattern. A highly corrosion-resistant metallic reflection film (2) is applied thereon by plating and a protective film (3) is further deposited thereon. In a state where rays of light exist, a physical diffraction phenomenon takes place and the rays of light are reflected by the metallic reflection film, thereby exhibiting bright metallic luster in rich gradation of seven colors or a cubic hologram pattern. The colors change according to viewing angles, so that various patterns or designs can be combined. Besides being provided with the optical properties of peculiar physical diffraction, the hologram mosaic of the present invention is free from distinct change in its decorative effect even when used for an extended period of time so that it can be used widely as permanent building decorations on interior or exterior walls.

Abstract translation: 本发明涉及一种新型建筑装饰材料。 通过使用由激光全息术产生的干板或通过光线的衍射光栅进行蚀刻蚀刻，将压模辊的模型盘或模具重复，然后压在诸如透明玻璃，硬质玻璃的基材（1）上 或丙烯酸膜形成激光全息图或衍射光栅图案。 通过电镀在其上施加高度耐腐蚀的金属反射膜（2），并且在其上进一步沉积保护膜（3）。 在存在光线的状态下，发生物理衍射现象，并且光线被金属反射膜反射，从而以丰富的七色或三次全息图形式呈现出明亮的金属光泽。 颜色根据视角而变化，从而可以组合各种图案或设计。 除了具有特殊的物理衍射的光学特性之外，本发明的全息图马赛克即使在长时间使用时也不会有明显的装饰效果的变化，从而可广泛地用作室内永久建筑装饰 或外墙。

公开(公告)号：WO1986004997A1

公开(公告)日：1986-08-28

申请号：PCT/GB1986000101

申请日：1986-02-25

Applicant: GARDNER, Keith ,  LONGMAN, Robert, James ,  PETTIGREW, Robert, Martin ,  WELFORD, Walter, Thompson

IPC: G02B05/18

CPC classification number: G11B7/261 ,  G02B5/32

Abstract: An interferometer which comprises: (1) a single, coherent light source; (2) a first converging lens positioned on the optical axis of said coherent light source; (3) a beam-splitting arrangement positioned on said optical axis and spaced from said first converging lens by a distance greater than the focal length of said lens; (4) a second converging lens positioned on said optical axis to receive and to focus the two beams emanating in use from the beam-splitting arrangement; and (5) a mirror arrangement positioned so that the beams focussed by said second converging lens impinge on the mirror system and so that the reflected beams are brought to intersect at a focal point and with a large angle between the principal rays of the two beams.