公开(公告)号：WO1993006511A1

公开(公告)日：1993-04-01

申请号：PCT/US1992008129

申请日：1992-09-25

Applicant: ASTRONAUTICS CORPORATION OF AMERICA

Inventor： ASTRONAUTICS CORPORATION OF AMERICA ,  HABERMAN, David ,  RHOADES, Robert, E, II ,  COX, Arthur ,  RALLISON, Richard

IPC: G02B05/32

CPC classification number: G02B27/1066 ,  G02B5/32 ,  G02B27/0103 ,  G02B27/1093 ,  G02B2027/0107 ,  G02B2027/0109 ,  G02B2027/0118 ,  G03H2001/2236 ,  G09F19/12 ,  G09F19/14

Abstract: An information display system has a display screen (21, 26) which is substantially transparent to a selected band of wavelengths of light and can be mounted on a window (23). A projector (20, 25) projects an image of light of the wavelengths to which the display screen (21, 26) responds onto the screen to reflect or transmit the selected wavelengths of light from the screen (21, 26). The screen (21, 26) is formed as a holographic optical element which reflects the light such that an observer (24) is able to see the projected image from the display screen (21, 26) only if his eyes are within a predetermined area, while observers outside of the area see only a substantially transparent display screen (21, 26) on the window (23).

公开(公告)号：WO1993002372A1

公开(公告)日：1993-02-04

申请号：PCT/GB1992001295

申请日：1992-07-15

Applicant: RICHMOND HOLOGRAPHIC RESEARCH AND DEVELOPMENT ... ,  TRAYNER, David, John ,  ORR, Edwina, Margaret

Inventor： RICHMOND HOLOGRAPHIC RESEARCH AND DEVELOPMENT ...

IPC: G02B05/32

CPC classification number: G02B27/2264 ,  G02B5/0252 ,  G02B5/0268 ,  G02B5/32 ,  H04N13/32

Abstract: Viewing apparatus for providing a viewer with an apparent 3-D image comprises a diffusing holographic optical element (HOE) screen (15), means (17, 19) for illuminating the screen (15) from a plurality of different positions and means (14) for effecting spatial modulation of the light from the respective positions so as to illuminate respective images on the screen (15). The arrangement is such as to provide a plurality of viewing zones (18, 20) whereby each image can be seen only from a corresponding one of the zones (18, 20).

Abstract translation: 用于向观看者提供视觉3-D图像的观看装置包括漫射全息光学元件（HOE）屏幕（15），用于从多个不同位置照亮屏幕（15）的装置（17,19）和装置（14 ），用于实现来自各个位置的光的空间调制，以便照亮屏幕（15）上的各个图像。 该布置是提供多个观看区域（18,20），由此每个图像只能从对应的一个区域（18,20）中看到。

公开(公告)号：WO1990004797A1

公开(公告)日：1990-05-03

申请号：PCT/US1989004160

申请日：1989-09-25

Applicant: GRUMMAN AEROSPACE CORPORATION

Inventor： GRUMMAN AEROSPACE CORPORATION ,  CAPUTI, Stephen, J. ,  HOBBS, Douglas, S. ,  PERNICK, Benjamin, J. ,  FONNELAND, Nils, J. ,  FINE, John, V., Sr.

IPC: G02B05/32

CPC classification number: G02B5/32 ,  Y10S359/90

Abstract: Method of fabricating a coherently exposed multiple holographic lens (36) including a first step of fabricating an incoherently exposed master multiple holographic lens (18) with an array of overlapping holographic lens elements, each of said lens elements having an interference pattern substantially covering the entire area of the lens (18). The master multiple holographic lens (18) is illuminated with a first beam of light (16) from a coherent source to provide a plurality of light waves (28) equal in number to the number of lens elements in the master lens (18). The plurality of light waves (28) overlap in a region (35) downstream of the master lens (18). A holographic recording medium (36) is positioned in the region of overlap (35) such that an area (38) thereon is illuminated simultaneously by each of the plurality of light waves (28). A second beam of light (40) from a coherent source is directed toward the area (38) of the holographic recording medium (36) illuminated by the plurality of light waves (28). The holographic recording medium (36) is exposed simultaneously to the second beam of light (40) and the plurality of light waves (28) and is developed to form a coherently exposed multiple holographic lens (36). A larger area of overlap (54) of the plurality of light waves (28) illuminating to recording medium (52) is provided by an imaging lens (48) positioned to capture and redirect the waves. A one to one image of the master lens (18) can be recorded by positioning a pair of imaging lenses (56, 58) between the master lens (18) and the recording medium (36).

公开(公告)号：WO1986003845A1

公开(公告)日：1986-07-03

申请号：PCT/US1985002453

申请日：1985-12-11

Applicant: AMERICAN TELEPHONE & TELEGRAPH COMPANY

Inventor： AMERICAN TELEPHONE & TELEGRAPH COMPANY ,  HINTON, Harvard, Scott ,  OSTRANDER, John, Lawrence

IPC: G02B05/32

CPC classification number: G02F3/02 ,  G02B5/32 ,  Y10S359/90

Abstract: Method and apparatus for making a plurality of reflection holograms (101-109) positioned in a two-dimensional array to interconnect optically a plurality (120) of optically nonlinear optical devices (121-129) also positioned in a two-dimensional array. The devices are operated to function as optical logic NOR gates, and the reflection holograms optically interconnect the devices to form any desired optical logic circuit such as a clocked JK sequential logic flip-flop circuit. The reflection holograms are made by affixing the devices and a photosensitive material (500) to the opposite surfaces of a layer of transparent material (505). The transparent material maintains the positions of the devices relative to the photosensitive material both before and after the hologram is made. Spatial light modulator masks (501, 502) are temporarily placed over the outside surfaces of the photosensitive material and the devices to mask all but selected areas of the photosensitive material and designated devices from being illuminated by coherent light beams.

公开(公告)号：WO1983004317A1

公开(公告)日：1983-12-08

申请号：PCT/US1983000842

申请日：1983-05-26

Applicant: HUGHES AIRCRAFT COMPANY

Inventor： HUGHES AIRCRAFT COMPANY ,  MOSS, Gaylord, E. ,  CHERN, Mao-Jin ,  DOBBS, Teena, L.

IPC: G02B05/32

CPC classification number: B23K26/032 ,  A61F9/022 ,  G02B5/203 ,  G02B5/32 ,  G03H2270/55

Abstract: A holographic reflector (20) for reflecting laser radiation at a predetermined wavelength. The reflector employs a plurality of holograms (31, 33) which are disposed adjacent to one another and which are conterminous with each other. The holograms (31, 33) are generally disposed in a support structure (21) which may be a visor or goggle arrangement. Each of the holograms may be either parallel fringe holograms or slanted fringe holograms. The angular orientation of the fringes and the relative spacing thereof determine the angular coverage provided by the reflector (20). The reflector (20) provides for reflection of laser radiation at a predetermined wavelength and within a particular angular subtence (DELTA)3,DELTA)4,DELTA)5) while allowing high see-through in the visible wavelength region. Multiple sets of holograms may also be stacked in order to protect against multiple laser sources.