http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-H0855375-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_c5520dd38cc403678d9f91e0b0ee95fb |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G11B11-105 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G11B11-10 |
| filingDate | 1994-08-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b897eb46d724c2af93b6151ed2491e0f http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d5938a1397331770edb61237b3020d71 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_65fb8b83c363a95c37b5aa0a7c960053 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_40691482a38cc88f9d4d0423adec6e9a |
| publicationDate | 1996-02-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-H0855375-A |
| titleOfInvention | Magneto-optical storage element |
| abstract | (57) [Summary] [Construction] At least one surface of the transparent substrate 1 has a groove portion for guiding a light beam, and the magneto-optical recording layer 3 is provided on the transparent substrate 1 on the groove portion side. The width of the groove portion and the width of the land portion between the groove portions are almost equal to each other, and a magneto-optical disk for recording / reproducing information on / from a track on the groove portion and a track on the land portion has a depth d (track) of the groove portion. Depth) is the wavelength of the light beam is λ, When the refractive index of the transparent substrate 1 is n, 0.13 × λ / n It is set to satisfy ≦ d ≦ 0.18 × λ / n. The track pitch p is 0.6 ≦ L / p, where L is the diameter of the light beam at the position where the light intensity of the radiated light beam is 1 / e 2 of the light intensity at the beam center. It is set to satisfy ≦ 1.2. [Effect] Even if the width of the groove portion or the land portion is reduced to increase the track density, good signal quality can be obtained and a magneto-optical disk with a high recording density can be realized. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-H08306089-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/KR-100581487-B1 |
| priorityDate | 1994-08-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 27.