http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-206788448-U
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_268be9afa00cf55b5aa72b1612151ecb |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G02B13-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G02B9-64 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G02B13-16 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G02B13-22 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G02B27-283 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G02B13-18 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G03B21-14 |
| filingDate | 2017-05-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2017-12-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7cca3f68a890d4496bd0ee173524afcd |
| publicationDate | 2017-12-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-206788448-U |
| titleOfInvention | Imaging optical system, projection type image display apparatus and camera device |
| abstract | A kind of F values of the utility model offer are smaller and have the imaging optical system of good optical property, possess the projection type image display apparatus of the imaging optical system and possess the camera device of the imaging optical system.Imaging optical system includes the 1st optical system (G1) and the 2nd negative optical system (G2) from Zoom Side successively.Intermediary image (MI) is imaged in the conjugate planes of Zoom Side by the 2nd optical system (G2) imaging intermediary image (MI), the 1st optical system (G1).2nd optical system (G2) includes positive preceding group (G2a) and rear group (G2b) successively from Zoom Side.Meet and effective conditional (1) related as the focal length (f1) of circular diameter (Im φ) and the 1st optical system (G1) in the focal length (fG2a) of preceding group (G2a), the focal length (f) of whole system, the focal length (f2) of the 2nd optical system (G2), reduced side：4 ＜ | fG2a/f | ＜ 9, (2)：1 ＜ | f2/Im φ | ＜ 8 and (3)：0.7 ＜ | f/f1 | ＜ 1.1. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-107450166-A |
| priorityDate | 2016-05-25-04:00^^<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/compound/CID3033 http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID419583338 |
Total number of triples: 20.