公开(公告)号：JP2001143322A

公开(公告)日：2001-05-25

申请号：JP2000313021

申请日：2000-10-13

Applicant: IBM

Inventor： BEST MARGARET E ,  ROSEN HAL J ,  RUBIN KURT A ,  STRAND TIMOTHY C

IPC: G02B7/28 ,  G11B7/00 ,  G11B7/0037 ,  G11B7/004 ,  G11B7/005 ,  G11B7/0055 ,  G11B7/007 ,  G11B7/013 ,  G11B7/085 ,  G11B7/09 ,  G11B7/135 ,  G11B7/1381 ,  G11B7/14 ,  G11B7/24 ,  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: PROBLEM TO BE SOLVED: To provide an optical data memory medium having multiple laminated layers which can be accessed from an optical head and of which the respective data layers are highly transparent. SOLUTION: The optical recording medium 12 of the multiple data layers consisting of plural substrates 50, 56, 62, etc., separated by air gaps 78 is disclosed. Data surfaces 90, 92, 94, etc., exist on the surfaces of the substrates adjacent to the air gaps. The data surface contain coatings of an optical data recording material and does not have the reflection layers known in the prior art.

公开(公告)号：JP2001143279A

公开(公告)日：2001-05-25

申请号：JP2000313042

申请日：2000-10-13

Applicant: IBM

Inventor： BEST MARGARET E ,  ROSEN HAL J ,  RUBIN KURT A ,  STRAND TIMOTHY C

IPC: G02B7/28 ,  G11B7/00 ,  G11B7/0037 ,  G11B7/004 ,  G11B7/005 ,  G11B7/0055 ,  G11B7/007 ,  G11B7/013 ,  G11B7/085 ,  G11B7/09 ,  G11B7/135 ,  G11B7/1381 ,  G11B7/14 ,  G11B7/24 ,  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: PROBLEM TO BE SOLVED: To provide an optical data storage medium of multiple laminated layers which may be accessed from an optical head and of which the respective data layers are highly transparent. SOLUTION: The optical recording medium 12 of the multiple data layers consisting of plural substrates 50, 56, 62, etc., separated by air gaps 78 is disclosed. Data surfaces 90, 92, 94, etc., exist on the surfaces of the substrates adjacent to the air gaps. The data surface contain coatings of an optical data recording material and does not have the reflection layers known in the prior art.

公开(公告)号：CA2123450C

公开(公告)日：1998-09-15

申请号：CA2123450

申请日：1994-05-12

Applicant: IBM

Inventor： IMAINO WAYNE I ,  ROSEN HAL J ,  RUBIN KURT A ,  STRAND TIMOTHY C

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

Abstract: An optical data storage system uses an optical medium made of a stack of spaced-apart optical disks. Each disk in the stack is made of light-transmissive material, such as polycarbonate when the system is a CD-ROM system, and has a partially light-transmissive data layer on at least one of its faces. A focusing lens in the system focuses light to the data layers along optical paths, with each data layer corresponding to a unique optical path length. The light is focused to each data layer by reflection off adjacent data layers such that the total substrate thickness through which the light passes is the same for each optical path. In this manner, the fixed spherical aberration correction provided by the focusing lens is adequate and variable aberration correction is not necessary. By appropriate selection of reflectivities of the multiple data layers in the disk stack, it is possible to design the system so that the effective reflected light intensity from each data layer is the same, and that adjustable signal amplification is not necessary.

公开(公告)号：CA2134140A1

公开(公告)日：1995-06-16

申请号：CA2134140

申请日：1994-10-24

Applicant: IBM

Inventor： IMAINO WAYNE I ,  ROSEN HAL J ,  RUBIN KURT A ,  STRAND TIMOTHY C ,  TANG WADE W

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：CA2066153A1

公开(公告)日：1992-12-05

申请号：CA2066153

申请日：1992-04-15

Applicant: IBM

Inventor： ROSEN HAL J ,  RUBIN KURT A ,  STRAND TIMOTHY C

IPC: G11B7/09 ,  G11B7/125 ,  G11B7/135 ,  G11B11/105 ,  G11B7/00

Abstract: SA9-91-018 MULTIPLE DATA SURFACE DATA STORAGE SYSTEM AND METHOD 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：CA2133246A1

公开(公告)日：1995-06-16

申请号：CA2133246

申请日：1994-09-29

Applicant: IBM

Inventor： IMAINO WAYNE I ,  ROSEN HAL J ,  RUBIN KURT A ,  STRAND TIMOTHY C ,  TANG WADE W

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：CA2066152A1

公开(公告)日：1992-12-05

申请号：CA2066152

申请日：1992-04-15

Applicant: IBM

Inventor： ROSEN HAL J ,  RUBIN KURT A ,  SINCERBOX GLEN T ,  STRAND TIMOTHY C ,  ZAVISLAN JAMES M

IPC: G11B7/00 ,  G02B5/00 ,  G02B27/00 ,  G11B7/004 ,  G11B7/09 ,  G11B7/135 ,  G11B7/24 ,  G11B7/095

Abstract: SA9-91-019 MULTIPLE DATA SURFACE OPTICAL DATA STORAGE SYSTEM AND METHOD 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：CA2066004A1

公开(公告)日：1992-12-05

申请号：CA2066004

申请日：1992-04-15

Applicant: IBM

Inventor： BEST MARGARET E ,  ROSEN HAL J ,  RUBIN KURT A ,  STRAND TIMOTHY C

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: 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.