公开(公告)号：DE69221776T2

公开(公告)日：1998-02-26

申请号：DE69221776

申请日：1992-06-02

Applicant: IBM

Inventor： BEST MARGARET EVANS ,  ROSEN HAL JERVIS ,  RUBEN KURT ALLAN ,  STRAND TIMOTHY CARL

IPC: G02B27/00 ,  G11B20060101 ,  G02B7/28 ,  G11B7/00 ,  G11B7/0037 ,  G11B7/004 ,  G11B7/005 ,  G11B7/0055 ,  G11B7/007 ,  G11B7/013 ,  G11B7/085 ,  G11B7/09 ,  G11B7/12 ,  G11B7/125 ,  G11B7/135 ,  G11B7/1353 ,  G11B7/1381 ,  G11B7/1392 ,  G11B7/14 ,  G11B7/24 ,  G11B7/24047 ,  G11B7/2405 ,  G11B7/24085 ,  G11B7/241 ,  G11B7/242 ,  G11B7/243 ,  G11B7/253 ,  G11B7/254 ,  G11B7/257 ,  G11B11/10 ,  G11B11/105 ,  G11B13/00 ,  G11B19/12 ,  G11B20/12 ,  G11B27/00

Abstract: Described is an optical data storage system which comprises a multiple data surface medium (12) and optical head. The medium comprises a plurality of substrates (50,56,62,68) separated by a light transmissive medium. Data surfaces are located on the substrate surfaces which lie adjacent to a light transmissive medium. The data surfaces are substantially light transmissive. Some of the data recorded in the first data surface represent the number of separate data surfaces contained in the medium.

公开(公告)号：SG43196A1

公开(公告)日：1997-10-17

申请号：SG1996005293

申请日：1994-06-27

Applicant: IBM

Inventor： IMAINO WAYNE ISAMI ,  ROSEN HAL JERVIS ,  RIBIN KURT ALLAN ,  STRAND TIMOTHY CARL

IPC: G11B7/095 ,  G11B7/005 ,  G11B7/09 ,  G11B7/24 ,  G11B7/00

Abstract: The optical data storage system comprises an optical medium comprising two spaced-apart substrates having the same material thickness, each substrate having a data layer. At least one of the substrates has a data layer which is at least partially transmissive. A light source is located near a first one of the substrates. A device directs light from the source to the medium, and includes a device for focusing the light to a discrete number of focusing positions. Each position defines an optical path between the light source and a corresponding one of the data layers. Each of the two optical paths includes a passage through substrate material having a total thickness equal to three substrate thicknesses.

公开(公告)号：DE69434171D1

公开(公告)日：2005-01-13

申请号：DE69434171

申请日：1994-12-08

Applicant: IBM

Inventor： IMAINO WAYNE ISAMI ,  ROSEN HAL JERVIS ,  RUBIN KURT ALLAN ,  STRAND TIMOTHY CARL ,  TANG WADE WAI-CHUNG

IPC: B41M5/26 ,  G11B7/00 ,  G11B7/007 ,  G11B7/135 ,  G11B7/1381 ,  G11B7/24 ,  G11B7/253 ,  G11B7/257

Abstract: An optical data storage system comprises a multiple data surface medium (12) and optical head. The medium (12) comprises a plurality of substrates (50, 56, 62, 68, 74) separated by a light transmissive medium (78). Data surfaces (90, 92, 94, 96, 98, 100, 102, 104) are located on the substrate surfaces. A layer of a semiconductor material is deposited onto each of the data surfaces. The thickness of the semiconductor layer determines the amount of reflectivity for each of the data surfaces.

公开(公告)号：DE69233251D1

公开(公告)日：2003-12-18

申请号：DE69233251

申请日：1992-06-02

Applicant: IBM

Inventor： BEST MARGARET EVANS ,  ROSEN HAL JERVIS ,  RUBEN KURT ALLAN ,  STRAND TIMOTHY CARL

IPC: G02B27/00 ,  G11B20060101 ,  G11B7/00 ,  G11B7/0037 ,  G11B7/004 ,  G11B7/005 ,  G02B7/28 ,  G11B7/0055 ,  G11B7/007 ,  G11B7/013 ,  G11B7/085 ,  G11B7/09 ,  G11B7/12 ,  G11B7/125 ,  G11B7/135 ,  G11B7/1353 ,  G11B7/1381 ,  G11B7/1392 ,  G11B7/14 ,  G11B7/24 ,  G11B7/24047 ,  G11B7/2405 ,  G11B7/24085 ,  G11B7/241 ,  G11B7/242 ,  G11B7/243 ,  G11B7/253 ,  G11B7/254 ,  G11B7/257 ,  G11B11/10 ,  G11B11/105 ,  G11B13/00 ,  G11B19/12 ,  G11B20/12 ,  G11B27/00

Abstract: Described is an optical data storage system which comprises a multiple data surface medium (12) and optical head. The medium comprises a plurality of substrates (50,56,62,68) separated by a light transmissive medium. Data surfaces are located on the substrate surfaces which lie adjacent to a light transmissive medium. The data surfaces are substantially light transmissive. Some of the data recorded in the first data surface represent the number of separate data surfaces contained in the medium.

公开(公告)号：DE69426660T2

公开(公告)日：2001-07-12

申请号：DE69426660

申请日：1994-06-27

Applicant: IBM

Inventor： IMAINO WAYNE ISAMI ,  ROSEN HAL JERVIS ,  RUBIN KURT ALLAN ,  STRAND TIMOTHY CARL

IPC: G11B7/095 ,  G11B7/005 ,  G11B7/09 ,  G11B7/24 ,  G11B7/00

Abstract: The optical data storage system comprises an optical medium comprising two spaced-apart substrates having the same material thickness, each substrate having a data layer. At least one of the substrates has a data layer which is at least partially transmissive. A light source is located near a first one of the substrates. A device directs light from the source to the medium, and includes a device for focusing the light to a discrete number of focusing positions. Each position defines an optical path between the light source and a corresponding one of the data layers. Each of the two optical paths includes a passage through substrate material having a total thickness equal to three substrate thicknesses.

公开(公告)号：CA2271540C

公开(公告)日：1999-11-30

申请号：CA2271540

申请日：1992-04-15

Applicant: IBM

Inventor： STRAND TIMOTHY CARL ,  ROSEN HAL JERVIS ,  BEST MARGARET EVANS ,  RUBIN KURT ALLAN

IPC: G02B7/28 ,  G02B27/00 ,  G11B20060101 ,  G11B7/00 ,  G11B7/0037 ,  G11B7/004 ,  G11B7/005 ,  G11B7/0055 ,  G11B7/007 ,  G11B7/013 ,  G11B7/085 ,  G11B7/09 ,  G11B7/12 ,  G11B7/125 ,  G11B7/135 ,  G11B7/1353 ,  G11B7/1381 ,  G11B7/1392 ,  G11B7/14 ,  G11B7/24 ,  G11B7/24047 ,  G11B7/2405 ,  G11B7/24085 ,  G11B7/241 ,  G11B7/242 ,  G11B7/243 ,  G11B7/253 ,  G11B7/254 ,  G11B7/257 ,  G11B11/10 ,  G11B11/105 ,  G11B13/00 ,  G11B19/12 ,  G11B20/12 ,  G11B27/00

Abstract: An optical data storage system comprises a multiple data surface medium and optical head. The medium comprises a plurality of substrates separated by a light transmissive medium. Data surfaces are located on the substrate surfaces which lie adjacent a light transmissive medium. The data surfaces are substantially light transmissive. The optical head includes an aberration compensator to allow the head to focus onto the different data surfaces and a filter to screen out unwanted reflected light.

公开(公告)号：HK1008705A1

公开(公告)日：1999-05-14

申请号：HK98108878

申请日：1998-07-04

Applicant: IBM

Inventor： BEST MARGARET EVANS ,  ROSEN HAL JERVIS ,  RUBEN KURT ALLAN ,  STRAND TIMOTHY CARL

IPC: G02B27/00 ,  G02B7/28 ,  G11B20060101 ,  G11B7/00 ,  G11B7/0037 ,  G11B7/004 ,  G11B7/005 ,  G11B7/0055 ,  G11B7/007 ,  G11B7/013 ,  G11B7/085 ,  G11B7/09 ,  G11B7/12 ,  G11B7/125 ,  G11B7/135 ,  G11B7/1353 ,  G11B7/1381 ,  G11B7/1392 ,  G11B7/14 ,  G11B7/24 ,  G11B7/24047 ,  G11B7/2405 ,  G11B7/24085 ,  G11B7/241 ,  G11B7/242 ,  G11B7/243 ,  G11B7/253 ,  G11B7/254 ,  G11B7/257 ,  G11B11/10 ,  G11B11/105 ,  G11B13/00 ,  G11B19/12 ,  G11B20/12 ,  G11B27/00 ,  G11B

Abstract: Described is an optical data storage system which comprises a multiple data surface medium (12) and optical head. The medium comprises a plurality of substrates (50,56,62,68) separated by a light transmissive medium. Data surfaces are located on the substrate surfaces which lie adjacent to a light transmissive medium. The data surfaces are substantially light transmissive. Some of the data recorded in the first data surface represent the number of separate data surfaces contained in the medium.

公开(公告)号：SG45166A1

公开(公告)日：1998-01-16

申请号：SG1996000850

申请日：1994-12-08

Applicant: IBM

Inventor： IMAINO WAYNE ISAMI ,  ROSEN HAL JERVIS ,  RUBIN KURT ALLAN ,  STRAND TIMOTHY CARL ,  TANG WADE WAI-CHUNG

IPC: B41M5/26 ,  G11B7/00 ,  G11B7/007 ,  G11B7/135 ,  G11B7/1381 ,  G11B7/24 ,  G11B7/253 ,  G11B7/257

Abstract: An optical data storage system comprises a multiple data surface medium (12) and optical head. The medium (12) comprises a plurality of substrates (50, 56, 62, 68, 74) separated by a light transmissive medium (78). Data surfaces (90, 92, 94, 96, 98, 100, 102, 104) are located on the substrate surfaces. A layer of a semiconductor material is deposited onto each of the data surfaces. The thickness of the semiconductor layer determines the amount of reflectivity for each of the data surfaces.

公开(公告)号：SG43793A1

公开(公告)日：1997-11-14

申请号：SG1996000928

申请日：1994-12-09

Applicant: IBM

Inventor： IMAINO WAYNE ISAMI ,  ROSEN HAL JERVIS ,  RUBIN KURT ALLAN ,  STRAND TIMOTHY CARL ,  TANG WADE WAI-CHUNG

IPC: B41M5/26 ,  G11B7/00 ,  G11B7/004 ,  G11B7/007 ,  G11B7/24 ,  G11B7/244 ,  G11B7/246 ,  G11B7/247 ,  G11B7/248 ,  G11B7/249 ,  G11B7/258

Abstract: An optical data storage system comprises a multiple data surface medium and optical head. The medium comprises a plurality of substrates separated by a light transmissive medium. Data surfaces are located on the substrate surfaces. A layer of a dye material is deposited onto each of the data surfaces. The thickness of the dye layer determines the amount of reflectivity for each of the data surfaces.

公开(公告)号：DE3880353T2

公开(公告)日：1993-10-28

申请号：DE3880353

申请日：1988-02-02

Applicant: IBM

Inventor： LATTA MILTON RUSSELL ,  STRAND TIMOTHY CARL

IPC: G11B7/09 ,  G02B7/28 ,  G11B7/085 ,  G11B7/12 ,  G11B7/135 ,  G02B13/10

Abstract: A holographic mirror is used in an optical storage head to diffract a laser beam perpendicularly to the optical medium and also to focus the beam onto the optical medium. The mirror can also function to cause circularisation of a collimated laser beam of elliptical cross-section.