US 10,852,189 B2Granted

Filter array reconstructive spectrometry

AssigneeThe Regents of the University of California

InventorsZhaowei Liu, Qian Ma, Eric Huang

Life of this patent

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Abstract

A spectrometry system may include an etalon array having a first etalon and a second etalon. The first etalon may be configured to process light to at least generate a first transmission pattern. The first transmission pattern may have at least a first transmission peak corresponding to a first wavelength in an original spectrum of the light. The second etalon may be configured to process the light to at least generate a second transmission pattern. The second transmission pattern may have at least a second transmission peak corresponding to a second wavelength in the original spectrum of the light. The first etalon may have a different thickness than the second etalon in order for the first transmission pattern to have at least one transmission peak that is at a different wavelength than the second transmission pattern. The first transmission pattern and the second transmission pattern may enable a reconstruction the original spectrum of the light.

Claims20

Dependent claims

A system, comprising:

an etalon array having a first etalon and a second etalon, the first etalon having a first pair of at least partially reflective surfaces and being configured to process light to at least generate a first transmission pattern, the first transmission pattern having at least a first transmission peak corresponding to a first wavelength in an original spectrum of the light, the second etalon having a second pair of at least partially reflective surfaces, the second pair separate from the first pair, the second etalon being configured to process the light to at least generate a second transmission pattern, the second transmission pattern having at least a second transmission peak corresponding to a second wavelength in the original spectrum of the light, the first etalon having a different thickness than the second etalon in order for the first transmission pattern to have at least one transmission peak that is at a different wavelength than the second transmission pattern, and the first transmission pattern and the second transmission pattern enabling a reconstruction the original spectrum of the light for spectroscopy.

Dependencies are inferred from the claim text.

Facts

Application: 16/079,654Filed 24 Feb 2017 · us provisional application
Priority: 26 Feb 2016
Published: US 2019/0056269 A121 Feb 2019
Granted: 1 Dec 2020
Term ends: Not estimatedThe source records don’t support an estimate.

Classification13 codes

G01J 3/36
Measuring the intensity of spectral lines directly on the spectrum itself: investigating two or more bands of a spectrum by separate detectors
G01J 3/0208
Optical elements not provided otherwise, e.g. optical manifolds, diffusers, windows: using focussing or collimating elements, e.g. lenses or…
G01J 3/0218
Optical elements not provided otherwise, e.g. optical manifolds, diffusers, windows: using optical fibers
G01J 3/0256
Details: compact construction