http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-H10320828-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/G11B7-22 |
| filingDate | 1997-05-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8c2e126fd6eac0c8874dcb57083bd109 |
| publicationDate | 1998-12-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-H10320828-A |
| titleOfInvention | Optical pickup failure determination method and optical pickup inspection device |
| abstract | (57) [Problem] To properly judge a defect even in a lens having a distorted spot shape, such as a resin lens, to shorten the time required for judgment, and reduce rigidity required for the apparatus. Inexpensive and easy to implement. SOLUTION: A density value histogram is created from an entire screen including a spot image obtained by imaging a spot of a laser beam formed on a surface of a simulation disk 6, and a pixel number-luminance distribution corresponding to the density value histogram is calculated. An image processing apparatus 11 and a host computer 10 to be sought are provided. By comparing the pixel number-luminance distribution obtained from the entire screen including the spot image obtained by imaging the spot to be determined with the pixel number-luminance distribution obtained from the entire screen including the ideal spot image, light is obtained. Determine whether the pickup is defective. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2007257708-A |
| priorityDate | 1997-05-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 35.