Optical readers
AssigneeHewlett-Packard Development Company, L.P.
InventorsCharles M. SANTORI, James William STASIAK, Francesco AIETA, Anita ROGACS, Mineo YAMAKAWA, Kenneth WARD
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Abstract
Optical readers are disclosed in examples herein. An example optical reader including a light source to emit a light beam; and a spot pattern generator to receive the light beam and to generate a two-dimensional spot array from the light beam, the two-dimensional spot array to be directed toward a substrate having nanostructures, the two-dimensional spot array to be sensed to detect a presence or an absence of a substance of interest on the substrate.
Claims15
An optical reader, comprising:
- a light source to emit a light beam;
- and
- a spot pattern generator to receive the light beam and to generate a two-dimensional spot array from the light beam, the two-dimensional spot array to be directed toward a substrate having nanostructures, the two-dimensional spot array to be sensed to detect a presence or an absence of a substance of interest on the substrate.
A method, comprising:
- generating a two-dimensional spot array from a light beam;
- directing the two-dimensional spot array toward a substrate having nanostructures;
- and
- determining a presence or an absence of a substance of interest on the substrate based on spectroscopic data associated with spots of the two-dimensional spot array.
An optical reader, comprising:
- a light source to emit a light beam;
- a diffractive amplitude mask to convert the light beam into a two-dimensional spot array, the two-dimensional spot array to be directed toward a substrate having nanostructures;
- and
- a sensor to measure spectroscopic data associated with reflected spots of the two-dimensional spot array to enable the detection of a presence or an absence of a substance of interest on the substrate.
Dependencies are inferred from the claim text.