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Título

LCTF Spectral Parameters Stability

AutorPons Aglio, Alicia ; Peralta, Celia; Campos Acosta, Joaquín ; Negueruela, Angel I.; Rabal, A.; Martínez, T.
Palabras claveliquid crystal tunable filter
bandpass function
multispectral imaging
Fecha de publicación2009
CitaciónProceedings of 11th Congress of the International Colour Association AIC09
ResumenLiquid crystal tunable filters (LCTF) are being widely used as spectral analysis system in different applications, particularly in color imaging and multispectral imaging. This work presents a study on the stability, at short and long terms, of the parameters defining the bandpass function: spectral distribution of transmittance maximum, bandwidth and mean or effective wavelength, λm, calculated according to the Full Wide Half Maximum (FWHM) criterion. Measurements have been made by a direct method, (tuning the filter at one wavelength and recording the spectral transmittance) along the full spectral range (FSR), using a high quality spectrophotometer.
URIhttp://hdl.handle.net/10261/23134
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