摘要 |
A portable spectrometer device includes an illumination source for directing at a sample, and a tapered light pipe (TLP) for capturing light interacting with the sample at a first focal ratio and for delivering the light at a second focal ratio lower than the first focal ratio. A linearly variable filter (LVF) separates the captured light into a spectrum of constituent wavelength signals; and a detector array, including a plurality of pixels, each of the plurality of pixels disposed to receive at least a portion of a plurality of the constituent wavelength signals provides a power reading for each constituent wavelength. Preferably, the TLP is lensed at one end, and recessed in a protective boot with stepped inner walls. The gap between the TLP and LVF is minimized to further enhance resolution and robustness. |
申请人 |
JDS UNIPHASE CORPORATION |
发明人 |
HRUSKA, CURTIS, R.;HULSE, CHARLES, A.;BRYARS, BRETT, J.;VON GUNTEN, MARC, K.;PEDERSON, CHRISTOPHER, G.;O'BRIEN, NADA, A.;ZIEBA, JERRY |