Technique for determining presence of a species in a sample

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United States of America Patent

PATENT NO 11802792
SERIAL NO

17515687

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A technique of determining the presence of a species in a sample may include passing light through an optical filter. In an example, the optical filter may include a spatially variant microreplicated layer optically coupled to a wavelength selective filter. The wavelength selective filter may have a light incidence angle-dependent optical band. The spatially variant microreplicated layer may be configured to transmit light to a first optical region of the wavelength selective filter at a first predetermined incidence angle and to a second optical region of the wavelength selective filter at a second predetermined incidence angle.

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Patent Owner(s)

  • 3M INNOVATIVE PROPERTIES COMPANY

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Anderson, Owen M Minneapolis, US 17 11
Benoit, Gilles J Minneapolis, US 99 357
Biernath, Rolf W Wyoming, US 82 1745
Du, Guanglei Pittsford, US 47 133
Hillis, James Bloomington, US 14 43
Merritt, Sara Suzanne Grant, US 2 1
Nevitt, Timothy J Red Wing, US 119 3579
Wheatley, John A Stillwater, US 242 9403

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