Abstract
An imaging spectrometer (500) comprises a Fabry-Perot interferometer (100) and an image sensor (200) having color-sensitive pixels. The interferometer (100) has a first transmission peak (PEAK1) and a second transmission peak (PEAK2). A method calibrating the spectrometer (500) comprises: - providing first calibration light (LB11), which has a narrow spectral peak (MPEAK), - obtaining first detector signal values (S R , S G ) from the image sensor (200) by coupling the first calibration light (LB11) into the spectrometer (500) when the reference spectral peak (MPEAK) is near a first spectral position (» 0 ), - obtaining second detector signal values (S R , S G ) from the image sensor (200) by coupling the first calibration light (LB11) into the spectrometer (500) when the reference spectral peak (MPEAK) is near a second spectral position (» 1 ), - providing second calibration light (LB20), which has a broad bandwidth, and - obtaining third detector signal values (S R , S G ) from the image sensor (200) by coupling the second calibration light (LB20) into the spectrometer (500).
Patent family as of 15.10.2021
CN104390703 A 20150304 CN201310654165 20131011
CN104390703 B 20160907 CN201310654165 20131011
DE602013001760 D1 20150625 DE201360001760T 20131009
EP2720014 A1 20140416 EP20130397532 20131009
EP2720014 B1 20150513 EP20130397532 20131009
FI125762 B 20160215 FI20120006066 20121011
FI20126066 A 20140412 FI20120006066 20121011
JP2014077792 A2 20140501 JP20130212518 20131010
JP5541644 B2 20140709 JP20130212518 20131010
US2014176729 AA 20140626 US20130049636 20131009
US8780356 BA 20140715 US20130049636 20131009
Link to current patent family on right
| Original language | English |
|---|---|
| Patent number | EP2720014 |
| IPC | H04N 17/ 02 A I |
| Priority date | 11/10/12 |
| Publication status | Published - 16 Apr 2014 |
| MoE publication type | H1 Granted patent |