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US 12,517,290 B2Granted
Optical filter, and image sensor and electronic device including optical filter
AssigneeSamsung Electronics Co., Ltd.
InventorsHyochul Kim, Moonsook Lee, Younggeun Roh
Life of this patent
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Abstract
An optical filter includes an active filter region including at least one of a spectral filter and a polarizing filter; and a reference filter region configured to sense an amount of light passing through the active filter region, wherein the reference filter region includes a gray filter and at least one of a black filter and a transparent filter, wherein the gray filter has a transmittance that is higher than a transmittance of the black filter and lower than a transmittance of the transparent filter.
Claims16
An optical filter comprising:
- an active filter region comprising at least one of a spectral filter and a polarizing filter;
- and
- a reference filter region configured to sense an amount of light passing through the active filter region,
- wherein the reference filter region comprises a gray filter, a black filter, and a transparent filter,
- wherein the gray filter has a transmittance that is higher than a transmittance of the black filter and lower than a transmittance of the transparent filter,
- wherein an entirety of the reference filter region is outside of an entirety of the active filter region, and
- wherein the transparent filter is outside of the gray filter.
4 more elements
An optical filter comprising:
- an active filter region comprising at least one of a spectral filter and a polarizing filter;
- and
- a reference filter region configured to sense an amount of light passing through the active filter region, the reference filter region comprising a black filter, a gray filter, and a transparent filter, and
- wherein an entirety of the reference filter region is outside of an entirety of the active filter region, and
- wherein the transparent filter is outside of the gray filter.
2 more elements
An image sensor comprising:
- a pixel array comprising a plurality of pixels;
- and
- an optical filter provided on the pixel array,
- wherein the optical filter comprises:
- an active filter region comprising at least one of a spectral filter and a polarizing filter;
- and
- a reference filter region configured to sense an amount of light passing through the active filter region,
- wherein the reference filter region comprises a gray filter, a black filter, and a transparent filter,
- wherein the gray filter has a transmittance that is higher than a transmittance of the black filter and lower than a transmittance of the transparent filter,
- wherein an entirety of the reference filter region is outside of an entirety of the active filter region, and
- wherein the transparent filter is outside of the gray filter.
8 more elements
Dependencies are inferred from the claim text.