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US 9,958,326 B2Granted
Spectrometer and spectrometer module
AssigneeSamsung Electronics Co., Ltd.
InventorJung Mok Bae
Life of this patent
Estimating the term…
Abstract
A spectrometer and a spectrometer module are provided. The spectrometer includes a bandpass filter including a photonic crystal layer having a reflection wavelength or a transmission wavelength that varies based on an electrical stimulation, the bandpass filter being configured to filter light. The spectrometer further includes a photodetector configured to detect the filtered light.
Claims16
A spectrometer comprising:
- a bandpass filter comprising a photonic crystal layer having a reflection wavelength or a transmission wavelength that varies based on an electrical stimulation, the bandpass filter being configured to filter light;
- and
- a photodetector configured to detect the filtered light,
- wherein the photonic crystal layer comprises colloidal particles and a responsive material, and
- the responsive material is configured to:
- expand to increase spacing between the colloidal particles to reflect a first light of a first wavelength, based on a voltage being applied to the photonic crystal layer;
- and
- contract to decrease the spacing between the colloidal particles to reflect a second light of a second wavelength, based on the voltage not being applied to the photonic crystal layer.
5 more elements
A spectrometer module comprising:
- a light source configured to irradiate first light onto an object;
- a spectrometer configured to receive second light that is scattered from the object onto which the first light is irradiated, and measure a spectrum, based on the received second light;
- and
- a processor configured to analyze a physical property of the object, based on the measured spectrum,
- wherein the spectrometer comprises:
- a bandpass filter comprising a photonic crystal layer having a reflection wavelength or a transmission wavelength that varies based on an electrical stimulation, the bandpass filter being configured to filter the received second light;
- and
- a photodetector configured to detect the filtered second light,
- the photonic crystal layer comprises colloidal particles and a responsive material, and the responsive material is configured to:
- expand to increase spacing between the colloidal particles to reflect a third light of a first wavelength, based on a voltage being applied to the photonic crystal layer;
- and
- contract to decrease the spacing between the colloidal particles to reflect a fourth light of a second wavelength, based on the voltage not being applied to the photonic crystal layer.
9 more elements
A spectrometer comprising:
- a bandpass filter comprising a photonic crystal layer that comprises colloidal particles and a responsive material configured to:
- expand to increase spacing between the colloidal particles to reflect a first light of a first wavelength, based on a voltage being applied to the photonic crystal layer;
- and
- contract to decrease the spacing between the colloidal particles to reflect a second light of a second wavelength, based on the voltage not being applied to the photonic crystal layer;
- and
- a photodetector configured to detect the reflected first light and the reflected second light.
3 more elements
Dependencies are inferred from the claim text.