Back to results
US 11,692,875 B2Granted
Optical filter, spectrometer including the optical filter, and electronic apparatus including the optical filter
AssigneeSamsung Electronics Co., Ltd.
InventorChanwook Baik
Life of this patent
Estimating the term…
Abstract
An optical filter, a spectrometer including the optical filter, and an electronic apparatus including the optical filter are disclosed. The optical filter includes a first reflector including a plurality of first structures that are periodically two-dimensionally arranged, each of the first structures having a ring shape, and a second reflector spaced apart from the first reflector and including a plurality of second structures that are periodically two-dimensionally arranged.
Claims20
An apparatus comprising:
- a light detecting device configured to convert incident light to electrical signals;
- and
- a plurality of optical filters configured to transmit different wavelengths, the plurality of optical filters being monolithically integrated on the light detecting device,
- wherein each optical filter of the plurality of optical filters comprises:
- a first reflector comprising first structures that are two-dimensionally arranged, each of the first structures having a ring shape having an inner radius and an outer radius, and each of the first structures having a first size that is less than a transmission wavelength of the optical filter;
- and
- a second reflector spaced apart from the first reflector, the second reflector comprising second structures that are two-dimensionally arranged, each of the second structures have a second size that is less than the transmission wavelength of the optical filter.
4 more elements
An apparatus comprising:
- a light detecting device configured to convert incident light to electrical signals;
- and
- a plurality of optical filters configured to transmit different wavelengths,
- wherein each optical filter of the plurality of optical filters comprises:
- a first reflector comprising first structures that are two-dimensionally arranged, each of the first structures having a first ring shape having a first inner radius and a first outer radius;
- and
- a second reflector spaced apart from the first reflector, the second reflector comprising second structures that are two-dimensionally arranged, each of the second structures having a disc shape or a second ring shape having a second inner radius and a second outer radius.
4 more elements
An apparatus comprising:
- a light detecting device configured to convert incident light to electrical signals;
- and
- a plurality of optical filters configured to transmit different wavelengths, the plurality of optical filters being monolithically integrated on the light detecting device,
- wherein each optical filter of the plurality of optical filters comprises:
- a first reflector comprising first structures that are two-dimensionally arranged, each of the first structures having a ring shape having an inner radius and an outer radius;
- and
- a second reflector spaced apart from the first reflector, the second reflector comprising second structures that are two-dimensionally arranged,
- wherein a first pitch of the first structures is less than a wavelength of incident light that is incident on the optical filter, and
- wherein a second pitch of the second structures is less than the wavelength of the incident light.
6 more elements
Dependencies are inferred from the claim text.