http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-WO2007145194-A1
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G02B5-04 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G02B15-145129 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G02B15-20 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G02B13-18 |
| filingDate | 2007-06-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2009-10-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-WO2007145194-A1 |
| titleOfInvention | Imaging optical system, imaging lens device, and digital device |
| abstract | Provided is an imaging optical system having a five-unit zoom configuration of “positive / negative / positive / positive” having high optical performance while being compact. The imaging optical system includes, in order from the object side, a first lens group having a positive optical power, fixed at the time of zooming, and including a reflecting member that bends the optical axis at a substantially right angle, and a negative optical power. A second lens group movable in the optical axis direction, a third lens group having positive optical power, a fourth lens group having positive optical power and movable in the optical axis direction, and And a fifth lens group having positive optical power and movable in the optical axis direction. Then, the relationship between the focal length of the imaging optical system, the distance on the optical axis, and the imaging distance of the fifth lens group is optimized so that the ratio of the amount of magnification of the fourth lens group and the fifth lens group is optimized. It is prescribed. |
| priorityDate | 2006-06-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
| Predicate | Subject |
|---|---|
| isDiscussedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID419530175 http://rdf.ncbi.nlm.nih.gov/pubchem/compound/CID123105 |
Total number of triples: 13.