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US 11,237,050 B2Granted
Low-cost spectrometry system for end-user food analysis
AssigneeVerifood, Ltd.
InventorsDamian Goldring, Dror Sharon
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Abstract
A compact spectrometer is disclosed that is suitable for use in mobile devices such as cellular telephones. In preferred embodiments, the spectrometer comprises a filter, at least one Fourier transform focusing element, a micro-lens array, and a detector, but does not use any dispersive elements. Methods for using the spectrometer as an end-user device for performing on-site determinations of food quality, in particular, by comparison with an updatable database accessible by all users of the device, are also disclosed.
Claims20
A compact spectrometer system for obtaining a spectrum of a sample, comprising:
- an optical detector configured to detect light emanating from said sample;
- a plurality of optical filters configured to be disposed between said sample and said optical detector, said plurality of optical filters having different central wavelengths;
- and,
- a micro-lens array disposed between said optical detector and said plurality of optical filters, wherein said micro-lens array is configured to sample and decompose light received from said plurality of optical filters to form a plurality of light components corresponding to respective optical filters of said plurality of optical filters at a plurality of positions of a light sensitive surface of said optical detector, wherein said optical detector is configured to measure optical intensity as a function of said plurality of positions.
1 more element
Dependencies are inferred from the claim text.