http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-211147991-U
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_66759017d0104590cf5e273a1fc9e7f7 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01M11-02 |
| filingDate | 2019-11-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2020-07-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_12264481be6e90b63f05f132e92bbf91 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f1934b3673f5b8a98a06c20e99351aff http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_211792412feeef38b664144a8048785b http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e2d7857b82844bd7605aa0c6e697ef11 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_2e6c200bcee8c138b81a847c83f75ad9 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_412aa77f958c57a64f56333ec30027e9 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_9dcc6978da9f69f237606b9cb624aec3 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_915b3c89995af0bf4033695bfb7cf9b2 |
| publicationDate | 2020-07-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-211147991-U |
| titleOfInvention | Double-spherical cavity for point source transmittance test and point source transmittance test system |
| abstract | The utility model belongs to optical system stray light test field relates to a two ball-type cavitys and point source transmissivity test system for point source transmissivity tests, solves two cylinder type cavity structures and is being surveyed camera test angle when being the measurement of non-horizontal direction, and the stray light of primary reflection still has very big probability and directly enters into the camera pupil, influences the problem of PST test accuracy. The double-spherical cavity is formed by butt joint of the two hemispherical shells, the transverse and vertical sections of the double-spherical cavity are the same as those of the double-cylindrical cavity, and the extinction advantages of the double-cylindrical cavity are simultaneously considered in the aspects and pitching of the sections, so that when the camera testing angle is in a non-horizontal direction, reflected light on the inner wall of the cavity can be reflected for multiple times, stray light in the camera can be almost ignored completely and is not limited, and the stray light testing is guaranteed to be carried out smoothly. |
| priorityDate | 2019-11-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 22.