http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-H08271703-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_13aa7b32ae00ed83af7dfaa0b6a1f7c2 |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G11B11-10543 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G02B1-041 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G11B7-1374 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G02B3-04 |
| classificationIPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G11B11-105 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G11B7-1374 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G02B3-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G02B1-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G11B7-135 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G02B3-02 |
| filingDate | 1995-03-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e867fee7b11f46a1472d7260afaf4d25 |
| publicationDate | 1996-10-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-H08271703-A |
| titleOfInvention | Resin lens |
| abstract | (57) [Abstract] [Purpose] To provide, at low cost, a high-performance resin lens used for a laser optical system of an optical disc, using an inexpensive acrylic resin. [Structure] A resin lens used in a laser optical system of an optical disk, which has a shape satisfying the following formula, using an acrylic resin having the following properties. Refractive index (n): n ≧ 1.5, water absorption rate (W): 0 ≦ W ≦ 1.5%, heat distortion temperature (T): T ≧ 110 ° C. Where d: axial thickness (mm), R 1 : radius of curvature of the S1 surface on the axis (mm) (both spherical and aspherical are acceptable), R 2 : radius of curvature of the S2 surface on the axis (mm) (spherical) , Any aspherical surface is possible), h: Effective diameter (mm) (effective diameter on the incident side). |
| priorityDate | 1995-03-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 28.