Optical device for a thermal sensor and a hybrid thermal sensor
AssigneeSamsung Electronics Co., Ltd.
InventorsRadwanul Hasan Siddique, Yibing Michelle Wang
Life of this patent
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Abstract
An imaging device includes: a sensor to detect a first target spectrum, the first target spectrum corresponding to a thermal imaging region of an infrared (IR) spectrum; and an optical device to transmit external light to the sensor, the optical device including: a substrate; and a plurality of nanostructures on the substrate, and to collimate at least the first target spectrum in the external light on the sensor. The plurality of nanostructures are spaced apart from each other, and at least one of the plurality of nanostructures has a different geometric size from that of another.
Claims20
An imaging device comprising:
- a sensor comprising:
- a first sensing region configured to detect a first target spectrum corresponding to an infrared (IR) region of an electromagnetic spectrum;
- and
- a second sensing region configured to detect a second target spectrum corresponding to a visible region of the electromagnetic spectrum;
- and
- an optical device configured to transmit external light to the sensor, the optical device comprising:
- a substrate comprising a first multisector region and a second multisector region that do not overlap with each other in a plan view;
- a plurality of first nanostructures at the first multisector region, and configured to transmit and collimate the first target spectrum of the external light on to the first sensing region;
- and
- a plurality of second nanostructures at the second multisector region, and configured to transmit and collimate the second target spectrum of the external light on to the second sensing region.
An optical device comprising:
- a substrate comprising a first multisector region and a second multisector region that do not overlap with each other in a plan view;
- a plurality of first nanostructures at the first multisector region, and configured to transmit and collimate a first target spectrum of external light on to a first sensing region, the first target spectrum corresponding to an infrared (IR) region of an electromagnetic spectrum;
- and
- a plurality of second nanostructures at the second multisector region, and configured to transmit and collimate a second target spectrum of the external light on to a second sensing region, the second target spectrum corresponding to a visible region of the electromagnetic spectrum.
An optical device comprising:
- a substrate;
- a plurality of first nanostructures on the substrate, and configured to transmit and collimate a first target spectrum of external light on to a first sensing region, the first target spectrum corresponding to an infrared (IR) region of an electromagnetic spectrum;
- and
- a plurality of second nanostructures on the substrate, and configured to transmit and collimate a second target spectrum of the external light on to a second sensing region, the second target spectrum corresponding to a visible region of the electromagnetic spectrum,
- wherein the plurality of first nanostructures and the plurality of second nanostructures do not overlap with each other in a plan view.
Dependencies are inferred from the claim text.