Three-dimensional optical recording medium and optical disk cartridge
A three-dimensional optical recording medium includes: an optical information recording layer and a recording portion that stores managing information of the three-dimensional optical recording medium. The recording portion is optically or electromagnetically readable, for example, a barcode, an RFID tag, a magnetic recording material, and is disposed at a periphery of the three-dimensional optical recording medium which may be formed in a disk or in a card. An optical disk cartridge including a cartridge case for housing the medium as optical disk cartridge has the recording portion at the medium or the cartridge case.
1 . A three-dimensional optical recording medium comprising:
an optical information recording layer for three-dimensionally storing optical information; and
a recording portion that stores managing information of the three-dimensional optical recording medium.
2 . The three-dimensional optical recording medium as claimed in claim 1 , wherein the recording portion is optically readable.
3 . The three-dimensional optical recording medium as claimed in claim 2 , wherein the recording portion comprises a printed part.
4 . The three-dimensional optical recording medium as claimed in claim 3 , wherein the printed part comprises barcode.
5 . The three-dimensional optical recording medium as claimed in claim 1 , wherein the recording portion is electromagnetically readable.
6 . The three-dimensional optical recording medium as claimed in claim 5 , wherein the recording portion comprises an RFID tag.
7 . The three-dimensional optical recording medium as claimed in claim 6 , wherein the RFID tag is adhered to the three-dimensional optical recording medium other than the RFID tag.
8 . The three-dimensional optical recording medium as claimed in claim 6 , wherein the RFID tag is buried in the three-dimensional optical recording medium other than the RFID tag.
9 . The three-dimensional optical recording medium as claimed in claim 1 , wherein the recording portion comprises a magnetic recording material.
10 . The three-dimensional optical recording medium as claimed in claim 1 , wherein the three-dimensional optical recording medium is a disk.
11 . The three-dimensional optical recording medium as claimed in claim 10 , wherein the recording portion is disposed at a periphery of the three-dimensional optical recording medium.
12 . The three-dimensional optical recording medium as claimed in claim 10 , further comprising a center hole formed at a center of the disk, wherein the recording portion is disposed adjacently to the center hole.
13 . The three-dimensional optical recording medium as claimed in claim 1 , wherein the three-dimensional optical recording medium is a card.
14 . The three-dimensional optical recording medium as claimed in claim 13 , wherein the recording portion is disposed at a periphery of the three-dimensional optical recording medium.
15 . An optical disk cartridge comprising:
a three-dimensional optical recording medium including an optical information recording layer for three-dimensionally storing optical information;
a cartridge case for housing the three-dimensional optical recording medium; and
a recording portion that stores managing information of the three-dimensional optical recording medium.
16 . The optical disk cartridge as claimed in claim 15 , wherein the recording portion is disposed at a periphery of the three-dimensional optical recording medium.
17 . The optical disk cartridge as claimed in claim 15 , wherein the recording portion is disposed at a periphery of the cartridge case.
18 . The optical disk cartridge as claimed in claim 15 , wherein the cartridge case has a light shielding property for the optical information recording layer.
19 . The three-dimensional optical recording medium as claimed in claim 1 , wherein a piece of the managing information is previously recorded in the recording portion.
20 . The three-dimensional optical recording medium as claimed in claim 19 , wherein the recording portion store another piece of the managing information in addition to the piece of the managing information.