公开(公告)号：EP0769189A4

公开(公告)日：1997-07-02

申请号：EP95925326

申请日：1995-06-30

申请人： INFORMATION OPTICS CORP

发明人： RUSSELL JAMES T

IPC分类号： G11C11/42 ,  G02B3/00 ,  G02B3/08 ,  G02B13/00 ,  G11C7/00 ,  G11C11/56 ,  G11C13/04 ,  H04N1/21

CPC分类号： G11C11/5678 ,  G11C7/005 ,  G11C11/56 ,  G11C13/0004 ,  G11C13/04 ,  G11C13/041

摘要： An optical memory (100) in which data is stored in an optical data layer (190) capable of selectively altering light such as by changeable transmissivity or polarization. The data is illuminated by controllable light sources (330) and an array of multi-surface imaging lenslets (210) project the image onto a common array of light sensors (270). Data is organized into a plurality of regions or patches (called pages) in which each page contains a field of data spots that encode multiple states or levels of data by the amount of transmissivity or polarization of that spot.

公开(公告)号：EP0769188A4

公开(公告)日：1997-07-02

申请号：EP95916981

申请日：1995-04-13

申请人： INFORMATION OPTICS CORP

发明人： RUSSELL JAMES T

IPC分类号： G11C11/42 ,  G02B3/00 ,  G02B17/08 ,  G11B7/00 ,  G11B7/004 ,  G11B7/135 ,  G11C7/00 ,  G11C11/56 ,  G11C13/04 ,  H04N1/21

CPC分类号： G11C7/005 ,  G11C11/56 ,  G11C13/04 ,  G11C13/041

摘要： A compact optical memory (100) in which data is stored in an optical data layer (100) capable of selectively altering light such as by changeable transmissivity, reflectivity, polarization, and/or phase. The data is illuminated by controllable light sources (106) and an array of multi-surface diffractive imaging lenslets causing a data image to be projected onto an array of light sensors (108) by reflecting, hence folding the image rays, by means of a mirror (128) that both reflects and optically modifies the light rays to redirect them onto the sensor array (108) located substantially coplanar with the data layer. Data is organized into an annular array of patches (called pages). By selective illumination of each data page, one of the lenslets images the selected data page onto a central image plane where the sensor array (108) is located. Light in the data image pattern strikes different ones of the arrayed light sources, thereby outputting a pattern of binary bits in the form of electrical data signals.

公开(公告)号：EP0619915A4

公开(公告)日：1994-12-28

申请号：EP93902868

申请日：1992-12-30

申请人： INFORMATION OPTICS CORP

发明人： RUSSELL JAMES T

IPC分类号： G11C11/42 ,  G11C7/00 ,  G11C11/56 ,  G11C13/04

CPC分类号： G11C7/005 ,  G11C11/56 ,  G11C13/04 ,  G11C13/041

摘要： An optical memory (10) is disclosed in which data is stored in an optical data layer (19) capable of selectively altering light such as by changeable transmissivity, reflectivity, polarization, and/or phase. The data is illuminated by controllable light sources (15) and an array of multi-surface imaging lenslets (21) project the image onto a common array of light sensors (27). Data is organized into a plurality of regions or patches (called pages) and by selective illumination of each data page, one of the lenslets (21) images the selected data page onto the light sensors (27). Light in the data image pattern strikes different ones of the arrayed light sensors (27), thereby outputting a pattern of binary bits in the form of electrical data signals. By selectively and sequentially illuminating different ones of the data regions (pages) on the data layer (19), correspondingly different data patterns are imaged by the corresponding lenslets (21) onto the common sensor array (27), thereby enabling many stored data pages to be retrieved by multiplexing at electro-optical speed.