http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-102804020-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G02B5-1814 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G02B27-0018 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G02B13-146 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G02B13-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G02B5-18 |
| filingDate | 2010-06-04^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2016-01-20^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2016-01-20^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-102804020-B |
| titleOfInvention | Diffraction optical element |
| abstract | Optical system for camera shooting system of the present invention possesses lens, these lens have first surface and second and a side only in described first surface and described second is provided with diffraction grating, wherein, diameter when the effective coverage on the face being provided with described diffraction grating that the light at the maximum visual angle to described lens entrance is formed is D, the F value at the maximum visual angle of described optical system for camera shooting system is Fno, the Abbe number based on d line of described lens is ν d, when on axle, the F value of light beam is F, the average diffraction wavestrip spacing Λ of described effective coverage meets following formula (6).<maths num="0001">n </maths> |
| priorityDate | 2009-06-11^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
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