# US 2014/0197315 A1 · Spectral variance compressive detection system, device, and process

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- Number: US 2014/0197315 A1
- Document ID: US20140197315A1
- Status: Published application
- Kind: A1
- Application number: 14/153,462
- Filed: 2014-01-13
- Published: 2014-07-17
- Earliest claimed: 2013-01-15
- Assignees: Cirtemo, Lld
- Applicants: Cirtemo, Lld
- Inventors: Ryan J. PRIORE
- Web page: https://patentgrep.com/patent/US20140197315A1

## CPC

- G01N 21/31: Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry {(G01N21/72 takes precedence)}
- G01J 3/12: Generating the spectrum; Monochromators
- G01J 3/2823: {Imaging spectrometer}
- G01J 2003/1226: {Interference filters}
- G01J 2003/2826: {Multispectral imaging, e.g. filter imaging}
- G01N: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES (measuring or testing apparatus or processes other than immunoassay, involving enzymes or microorganisms C12M, C12Q)
- G01J: MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY (light sources F21, H01J, H01K, H05B; investigating properties of materials by optical means G01N)

## Abstract

An optical analysis system, optical device, and optical analysis process are disclosed. The system includes one or more optical filter mechanisms disposed to receive light from a light source and a detector mechanism in operative communication with the one or more optical filter mechanisms to measure properties of filtered light, filtered by the one or more optical filter mechanisms from the received light. The one or more optical filter mechanisms are configured so that the magnitude of the properties measured by the detector mechanism is proportional to information carried by the light filtered. The device is capable of including one of the one or more optical filter mechanisms in the system. The process is capable of relying upon the system, filtering light, and measuring properties of the filtered light.

## Claims

### Claim 1

An optical analysis system, comprising:
one or more optical filter mechanisms disposed to receive light from a light source; and
a detector mechanism in operative communication with the one or more optical filter mechanisms to measure properties of filtered light, filtered by the one or more optical filter mechanisms from the received light;
wherein the one or more optical filter mechanisms are configured so that the magnitude of the properties measured by the detector mechanism is proportional to information carried by the light filtered.

### Claim 2 (depends on 1)

The system according to claim 1, wherein the one or more optical filter mechanisms contain at least one multivariate optical element.

### Claim 3 (depends on 1)

The system according to claim 1, wherein the one or more optical filter mechanisms contain at least one neutral density filter.

### Claim 4 (depends on 1)

The system according to claim 1, wherein the one or more optical filter mechanisms include a liquid crystal tunable filter (LCTF).

### Claim 5 (depends on 1)

The system according to claim 1, wherein the one or more optical filter mechanisms include an acousto-optical tunable filter (AOTF).

### Claim 6 (depends on 1)

The system according to claim 1, wherein the detector mechanism includes a point detector, wherein N unique optical filter measurements are usable to compute an estimate of the M-wavelength spectrum, wherein the number of the N unique optical filter measurements is less than M.

### Claim 7 (depends on 1)

The system according to claim 1, wherein the detector mechanism includes a 2D-array detector, wherein N unique optical filter measurements are usable to compute an estimate of the M-wavelength hyperspectral image, wherein the number of the N unique optical filter measurements is less than M.

### Claim 8

An optical device, comprising:
an optical filter mechanism capable of receiving light from a light source and capable of operation with a detector mechanism to measure properties of filtered light, filtered by the optical filter mechanism from the received light;
wherein the optical filter mechanism is configured so that the magnitude of the properties measured by the detector mechanism is proportional to information carried by the filtered light.

### Claim 9

An optical analysis process, comprising:
providing one or more optical filter mechanisms and a detector mechanism in operative communication with the one or more optical filter mechanisms;
receiving light from a light source with the one or more optical filter mechanisms;
filtering the received light to generate filtered light; and
measuring properties of the filtered light by the optical filter mechanisms,
wherein the optical filter mechanisms are configured so that the magnitude of the properties measured by the detector mechanism is proportional to information carried by the filtered light.