| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_d9ae7582c5f887bc2e8f656b4e0fc52a |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G02B1-08 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01S3-781
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H04B10-1129
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01J1-0429
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G02B1-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H04B10-112
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01J1-0266
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01J1-0411
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01J1-4228
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H04B10-116
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01S3-783 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G02B1-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01J1-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01J1-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H04B10-116
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G02F1-01 |
| filingDate |
2016-12-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
2018-12-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f7771b92031258f9c0f8150df76ce13c
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_02bed103f8250fc1639c48171a6acce0 |
| publicationDate |
2018-12-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-10153838-B1 |
| titleOfInvention |
Quad tracker with birefringent optics |
| abstract |
An optical tracking system for use in a free space optical communication system is described. The system includes a birefringent lens that is positioned to receive incident light and to produce light with a first and a second polarization. The system also includes a focusing lens positioned to receive the light with the first and the second polarizations and to direct the light with the first polarization to a first focal location along the optical axis and the light with the second polarization to a second focal location along the optical axis. A quadrature detector that is positioned between the first focal location and the second focal location receives the light with both the first and the second polarizations, and produces an output that is indicative of an alignment of the optical system. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2018209918-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-109581295-A |
| priorityDate |
2016-12-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |