Back to results
US 11,768,108 B2Granted
Optical filter and spectrometer including the optical filter
AssigneeSamsung Electronics Co., Ltd.
InventorsJaesoong Lee, Yeonsang Park, Hyochul Kim
Life of this patent
Estimating the term…
Abstract
The disclosure provides an optical filter element including a plurality of nano-columns separated from each other in a horizontal direction and extended in a vertical direction, and each of the plurality of nano-columns includes a first material layer having an first extinction coefficient and second material layers having second extinction coefficients different from the first extinction coefficient of the first material layer and a spectrometer including the same.
Claims29
An optical filter element comprising:
- a plurality of nano-columns separated from each other in a horizontal direction, wherein
- the plurality of nano-columns extend in a vertical direction, and
- each of the plurality of nano-columns comprises:
- a first material layer having a first extinction coefficient, and
- second material layers having a second extinction coefficient different from the first extinction coefficient of the first material layer,
- wherein the first material layer of each of plurality of nano-columns are separated from each other in the horizontal direction,
- wherein the first material layer has a refractive index less than that of the second material layers.
4 more elements
A spectrometer comprising:
- a plurality of optical filter elements having different resonant wavelengths from each other;
- and
- a sensor configured to receive light transmitted through the plurality of optical filter elements, wherein
- each of the plurality of optical filter elements comprises:
- a plurality of nano-columns that are separated from each other in a horizontal direction,
- wherein the plurality of nano-columns extend in a vertical direction, and
- wherein each of the plurality of nano-columns comprises a first material layer having a first extinction coefficient and second material layers having second extinction coefficients different from the first extinction coefficient of the first material layer,
- wherein the first material layer of each of plurality of nano-columns are separated from each other in the horizontal direction,
- wherein the first material layer has a refractive index less than that of the second material layers.
6 more elements
A filter apparatus comprising:
- a base layer;
- a first refraction layer provided on the base layer, the first refraction layer having a first extinction coefficient, and the first refraction layer comprising a plurality of first columns separated from each other in a first direction;
- a second refraction layer provided on the first refraction layer, the second refraction layer having a second extinction coefficient different from the first extinction coefficient, and the second refraction layer comprising a plurality of second columns separated from each other in the first direction;
- and
- a third refraction layer provided on the second refraction layer, the third refraction layer having a third extinction coefficient different from the first extinction coefficient, and the third refraction layer comprising a plurality of third columns separated from each other in the first direction,
- wherein the first refraction layer and the third refraction layer have a refractive index less than second refraction layer.
3 more elements
Dependencies are inferred from the claim text.