Patent ID: 11913832
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 0:
1. A spectral detector comprising:
a multi-arrangement type filter array including a plurality of filter arrays arranged to overlap each other in a path of propagation of incident light; and
a sensor array including a plurality of sensors configured to sense light passing through the multi-arrangement type filter array,
wherein the multi-arrangement type filter array comprises:
a first filter array having a first structure in which a plurality of first filters with different transmittance spectrums according to different absorbance characteristics thereof are arranged; and
a second filter array having a second structure in which a plurality of second filters with different transmittance spectrums according to different absorbance characteristics thereof are arranged, the second filter array being arranged to at least partially overlap the first filter array so that the multi-arrangement type filter array has a set of absorbance characteristics,
wherein the plurality of first filters comprise a first type of quantum dots,
wherein the plurality of second filters comprise a second type of quantum dots, and
wherein the first type of quantum dots and the second type of quantum dots are of one of a same type of quantum dot and different types of quantum dots,
wherein at least two of the plurality of first filters further comprise a third type of quantum dots different from the first type of quantum dots, and
wherein the first type of quantum dots and the third type of quantum dots are mixed in different ratios in the at least two of the plurality of first filters.