公开(公告)号：EP0075180A3

公开(公告)日：1986-05-14

申请号：EP82108226

申请日：1982-09-07

Applicant: SUMITOMO ELECTRIC INDUSTRIES LIMITED

Inventor： Tada, Koji c/o Osaka Works ,  Kuhara, Yoshiki c/o Osaka Works

IPC: G02B05/14 ,  G02B05/32

CPC classification number: G02F1/035 ,  G02B5/32 ,  G02B6/12004 ,  G02F1/2955

Abstract: A holographic light guide comprising, in sequence, a substrate, a light guiding layer and a holographic recording layer that partially replaces the light guiding layer is disclosed. The substrate is made of a first bismuth sillenite group substance. The light guiding layer is made of a second bismuth sillenite group substance that has a higher refractive index than the first bismuth sillenite group substance and absorbs little of the light being guided. The holographic recording layer is made of a third bismuth sillenite group substance that has a higher refractive index than the first bismuth sillenite group substance and has a degree of photosensitivity.

公开(公告)号：WO1998030924A1

公开(公告)日：1998-07-16

申请号：PCT/EP1997006774

申请日：1997-12-04

Applicant: DAIMLER-BENZ AG ,  HSM HOLOGRAPHIC SYSTEMS MÜNCHEN GMBH ,  GNÄDIG, Zora +hf ,  GNÄDIG, Nina, Franziska +hf ,  GNÄDIG, Mara, Sophie +hf ,  DAUSMANN, Günther ,  HALLDORSSON, Thorstein

Inventor： DAIMLER-BENZ AG ,  HSM HOLOGRAPHIC SYSTEMS MÜNCHEN GMBH ,  GNÄDIG, Zora +hf ,  GNÄDIG, Nina, Franziska +hf ,  GNÄDIG, Mara, Sophie +hf ,  GNÄDIG, Klaus +di

IPC: G02B05/32

CPC classification number: G02B5/32 ,  G03B21/60 ,  H04N5/74

Abstract: The invention concerns a holographic screen for the front laser projection of at least one or a plurality of laser wavelengths, said holographic screen selectively scattering back the incident spectrally narrow-band laser radiation in a predetermined solid angle and simultaneously absorbing intensely the disruptive spectrally broad-band ambient light. According to the invention, the holographic screen comprises at least one holographic volumetric grating (101, 102, 103) which is optically coupled to a light absorber (107).

Abstract translation: 在全息屏幕Laseraufprojektion至少一个或多个激光波长，其选择性散射回事件，在预定的立体角，并在同一时间频谱窄带激光辐射强烈地吸收的麻烦光谱宽带环境光，所以建议，它包括至少一个全息体积光栅（101，102 ，103），其被光学耦合（到光吸收体107）。

公开(公告)号：WO1998014805A1

公开(公告)日：1998-04-09

申请号：PCT/US1997017850

申请日：1997-10-01

Applicant: PACIFIC HOLOGRAPHICS, INC.

Inventor： PACIFIC HOLOGRAPHICS, INC. ,  LONG, Michael, D.

IPC: G02B05/32

CPC classification number: G03H1/041 ,  G03H1/0011 ,  G03H1/0236 ,  G03H2001/048 ,  G03H2001/0482 ,  G03H2001/0497 ,  G03H2001/2223 ,  G03H2001/2231 ,  G03H2001/2244 ,  G03H2001/2247 ,  G03H2210/13 ,  G03H2210/22 ,  G03H2210/32 ,  G03H2210/52 ,  G03H2210/55 ,  G03H2225/22 ,  G03H2240/42 ,  G06K19/16

Abstract: Device, method and system for recording diffractive high resolutiion graphical information is provided which is suited to recording information that would be difficult to reproduce by typical counterfeiting methods. In one embodiment, light is selectively passed by a shutter (52), and a spatial filter (54) cleans the beam to remove undesirable frequency components. A liquid crystal display (LCD) (68) dynamically receives a data stream from a computer (20) where each of the displayed data values presents an optical characteristic (for example, density, phase or polarization) to the filtered beam and causes diffraction into a plurality of diffracted beams (59). A mask (76) selectively passes only predetermined ones of the beams so that only frequency components that will generate the desired optical interference fringes are allowed to pass. Additional optical components (78) receive the passed beams and redirect them to overlap at an output plane (80) to form interference fringes.

Abstract translation: 提供了用于记录衍射高分辨率图形信息的装置，方法和系统，其适于通过典型的伪造方法记录难以再现的信息。 在一个实施例中，光被快门（52）选择性地通过，并且空间滤光器（54）清洁光束以去除不期望的频率分量。 液晶显示器（LCD）（68）动态地接收来自计算机（20）的数据流，其中每个所显示的数据值向滤波的光束呈现光学特性（例如，密度，相位或极化），并导致衍射 多个衍射光束（59）。 掩模（76）仅选择性地通过预定的光束，使得仅允许产生期望的光学干涉条纹的频率分量通过。 附加的光学部件（78）接收所传送的光束并将其重定向到在输出平面（80）处重叠以形成干涉条纹。

公开(公告)号：WO1997022022A1

公开(公告)日：1997-06-19

申请号：PCT/GB1996002970

申请日：1996-12-02

Applicant: STRACHAN, John, Scott

IPC: G02B05/32

CPC classification number: G02B5/32

Abstract: The invention provides an optical element comprising a first hologram (1) and a second hologram (2) separated by an intervening medium (30). The holograms (1, 2) have the same diffraction spacing and refractive index, but the first hologram (1) has an efficiency about one-half that of the second hologram (2), preferably about 50 % and >95 %, respectively. The geometry and the refractive index of the intervening medium (3) are such that an input beam (B) of mixed light undergoes diffraction and refraction to produce output beams (p1, p2) which combine in a controllably self-cancelling manner. Methods for the production of this element are also described.

Abstract translation: 本发明提供了一种光学元件，包括由中间介质（30）分开的第一全息图（1）和第二全息图（2）。 全息图（1,2）具有相同的衍射间距和折射率，但是第一全息图（1）的效率约为第二全息图（2）的大约一半，优选地为约50％且> 95％。 中间介质（3）的几何形状和折射率使得混合光的输入光束（B）进行衍射和折射，以产生以可控地自消除的方式组合的输出光束（p1，p2）。 还描述了用于生产该元件的方法。

公开(公告)号：WO1996000912A2

公开(公告)日：1996-01-11

申请号：PCT/US1995007231

申请日：1995-06-06

Applicant: THE UNIVERSITY OF NORTH CAROLINA ,  FELDMAN, Michael, R. ,  KOLSTE, Bob Te ,  WELCH, W., Hudson ,  YANG, Hedong

Inventor： THE UNIVERSITY OF NORTH CAROLINA

IPC: G02B05/32

CPC classification number: G02B27/0037 ,  G02B5/1876 ,  G02B5/188 ,  G02B5/189 ,  G02B5/32 ,  G02B6/262 ,  G02B6/4206 ,  G02B27/4272 ,  G02B27/4288 ,  G02B27/4294

Abstract: An achromatic optical system that preferably includes a light source (25) for emitting light therefrom, an achromatic optical element (40) positioned to receive light emitted from the light source, and an optical detector (30) positioned to receive and detect light passing through the optical element. The achromatic optical element preferably includes a substrate (41) having opposing sides, a first computer generated hologram (43) positioned on one side of the substrate and adapted to receive light emitted from the light source, and a second computer generated hologram (45) positionally aligned on the opposite side of the substrate and adapted to receive light passing through the substrate from the first hologram at a predetermined location thereon. A method of forming an achromatic diffractive optical element is also provided which includes the steps of determining a first data set comprising a plurality of discrete phase values and discrete transition values and selecting from the first data set phase values and transition values to form a second data set for defining first and second holograms. A discrete value of the second data set is then replaced by another discrete value from the first data set. A change of an optical system error function is then determined responsive to the replacement in the second data set. If the error function is reduced, the new data set is retained.

Abstract translation: 一种消色差光学系统，其优选地包括用于从其发射光的光源（25），定位成接收从光源发射的光的消色差光学元件（40），以及光学检测器（30），其被定位成接收和检测通过的光 光学元件。 消色差光学元件优选地包括具有相对侧的基板（41），位于基板的一侧上并且适于接收从光源发射的光的第一计算机产生的全息图（43）和第二计算机产生的全息图（45） 位于衬底的相对侧并且适于在其上的预定位置从第一全息图接收穿过衬底的光。 还提供了一种形成消色差衍射光学元件的方法，其包括以下步骤：确定包括多个离散相位值和离散转变值的第一数据集，并从第一数据集相位值和转换值中选择形成第二数据 用于定义第一和第二全息图。 然后，第二数据集的离散值被来自第一数据集的另一个离散值替换。 然后响应于第二数据组中的替换来确定光学系统误差函数的改变。 如果误差函数减少，则保留新的数据集。

公开(公告)号：WO1994007160A1

公开(公告)日：1994-03-31

申请号：PCT/US1993008550

申请日：1993-09-10

Applicant: THE BOARD OF TRUSTEES OF THE LELAND STANFORD, ...

Inventor： THE BOARD OF TRUSTEES OF THE LELAND STANFORD, ... ,  AHARONI, Abraham ,  GOODMAN, Joseph, W. ,  AMITAI, Yaakov

IPC: G02B05/32

CPC classification number: G02B5/32

Abstract: An optical system (12) is disclosed which focuses a polychromatic source to an extended focal pencil (16). The implementation makes use of two (15, 17) holographic optical elements (HOEs) fabricated and aligned to form a deliberate longitudinal color dispersion (16), but to alleviate lateral chromatic effects. Consequently, the HOE doublet focuses different wavelengths of the source to different locations along the optical axis. The strong intensity of the focused wavelengths dominate at each location, so that the overall beam has a near-diffraction-limited 1/e2 spot size and suffers only relatively weak background illumination. An alternative optical system using bulk lenses (80, 82) and several possible applications for the device are also described.

Abstract translation: 公开了一种将多色源聚焦到扩展焦点笔（16）的光学系统（12）。 该实现使用制造和对准的两个（15,17）全息光学元件（HOE）以形成有意的纵向色散（16），而是减轻横向色彩效应。 因此，HOE双峰将源的不同波长沿着光轴聚焦到不同的位置。 聚焦波长的强烈强度在每个位置处占主导地位，使得整个光束具有接近衍射的1 / e2斑点尺寸，并且仅具有较弱的背景照明。 还描述了使用块透镜（80,82）的替代光学系统以及该器件的几种可能的应用。

公开(公告)号：WO1991005276A1

公开(公告)日：1991-04-18

申请号：PCT/FR1990000685

申请日：1990-09-25

Applicant: THOMSON-CSF ,  LEHUREAU, Jean-Claude ,  HUIGNARD, Jean-Pierre

Inventor： THOMSON-CSF

IPC: G02B05/32

CPC classification number: G02F1/133621 ,  G02B5/32 ,  H04N9/3108

Abstract: The present invention relates to an optical system for reproducing color video images comprising a lighting source (1), an electro-optical modulator (3) comprised of pixels associated respectively to red, green, blue colors and optical colimation means (2) for lighting the entire modulator. Said system also includes an assembly of holographic lenses (6) which are selective in wave lengthes, allowing to focus the light of each red, green or blue component on the associated pixels of the modulator. Application to video projectors and to direct vision.

公开(公告)号：WO1988005173A1

公开(公告)日：1988-07-14

申请号：PCT/GB1988000007

申请日：1988-01-06

Applicant: PARKIN, Mark, Stephen

IPC: G02B05/32

CPC classification number: G02B5/32

Abstract: A method for producing an optical element (17) comprising an optical surface the contours of which define a waveform the amplitude of which as measured with respect to a datum surface is related to the amplitude of an interference pattern generated at the datum surface by interference between two coherent beams of radiation. The beams are generated in and transmitted to the datum surface through a particle free vacuum. The axes of the beams are mutually inclined, and each of the beams is of uniform intensity across the beam wavefront. At least one of the beams diverges from a single point or converges towards a single point.

Abstract translation: 一种用于制造包括光学表面的光学元件（17）的方法，其光学表面的轮廓限定了相对于基准面测量的幅度的波形与通过基准面处产生的干涉图案的幅度相关， 两个相干的辐射束。 光束通过无颗粒的真空产生并传播到基准面。 梁的轴线相互倾斜，并且每个光束在光束波前具有均匀的强度。 至少一个光束从单个点发散或者朝向单个点收敛。

公开(公告)号：WO1997046898A1

公开(公告)日：1997-12-11

申请号：PCT/US1997010175

申请日：1997-06-05

Applicant: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA

Inventor： THE REGENTS OF THE UNIVERSITY OF CALIFORNIA ,  KOIKE, Masato

IPC: G02B05/32

CPC classification number: G02B5/1857 ,  G01J3/1838 ,  G02B5/32

Abstract: This invention comprises a novel apparatus for recording a holographic groove pattern on a diffraction grating blank (G). The recording apparatus is configured using newly developed groups of analytical equations. The invention further comprises the novel holographic diffraction grating (G) made with the inventive recording apparatus. The invention additionally comprises monochromators and spectrometers equipped with the inventive holographic diffraction grating (PG). Further, the invention comprises a monochromator configured to reduce aberrations using a newly developed group of analytical equations. Additionally, the invention comprises a method to reduce aberrations in monochromators and spectrometers using newly developed groups of analytical equations.

Abstract translation: 本发明包括一种用于在衍射光栅坯料（G）上记录全息凹槽图案的新颖设备。 使用新开发的分析方程组来配置记录装置。 本发明还包括由本发明的记录装置制成的新型全息衍射光栅（G）。 本发明还包括配备有本发明的全息衍射光栅（PG）的单色仪和光谱仪。 此外，本发明包括使用新开发的分析方程组来减少像差的单色仪。 此外，本发明包括一种使用新开发的分析方程组来减少单色器和光谱仪中的像差的方法。

公开(公告)号：WO1997010523A1

公开(公告)日：1997-03-20

申请号：PCT/GB1995002184

申请日：1995-09-15

Applicant: RICHMOND HOLOGRAPHIC RESEARCH & DEVELOPMENT LIMITED ,  ORR, Edwina, Margaret ,  TRAYNER, David, John

Inventor： RICHMOND HOLOGRAPHIC RESEARCH & DEVELOPMENT LIMITED

IPC: G02B05/32

CPC classification number: G02B5/32

Abstract: A projection system incorporating a screen (2, 14) with a substantially achromatic response in a direction substantially perpendicular to the plane of the screen. The screen (2, 14) comprises a diffraction grating (4), means (5) for attenuating zero order and a diffuse holographic optical element (6). The system further comprises a focusing element with positive optical power. The aggregate optical power of the grating and the holographic optical element is substantially less than that of the focusing element.

Abstract translation: 一种投影系统，其包括在基本上垂直于屏幕平面的方向上具有基本无色响应的屏幕（2,14）。 屏幕（2,14）包括衍射光栅（4），用于衰减零级的装置（5）和漫射全息光学元件（6）。 该系统还包括具有正光焦度的聚焦元件。 光栅和全息光学元件的总光功率基本上小于聚焦元件的光学功率。