US 12,326,363 B2
Spectroscope
Seong Ho Cho, Gwacheon-si (KR); and Gajendra Pratap Singh, Nagar (IN)
Assigned to ANSWERAY INC., Gwacheon-si (KR)
Appl. No. 18/018,674
Filed by ANSWERAY INC., Gwacheon-si (KR)
PCT Filed Jul. 30, 2021, PCT No. PCT/KR2021/010022
§ 371(c)(1), (2) Date Jan. 30, 2023,
PCT Pub. No. WO2022/025728, PCT Pub. Date Feb. 3, 2022.
Claims priority of application No. 10-2020-0095321 (KR), filed on Jul. 30, 2020.
Prior Publication US 2023/0296435 A1, Sep. 21, 2023
Int. Cl. G01J 3/02 (2006.01); G01J 3/12 (2006.01)
CPC G01J 3/027 (2013.01) [G01J 3/0208 (2013.01); G01J 3/0275 (2013.01); G01J 2003/1204 (2013.01); G01J 2003/123 (2013.01); G01J 2003/1243 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A spectroscope comprising:
a disperser configured to disperse incident signal light, wherein the disperser includes:
a bandpass filter configured to spectroscopically process the signal light by bands, by pivoting according to a driving signal;
a light-receiving element configured to receive the signal light spectroscopically processed by bands to output a corresponding electrical signal;
a mixer that receives the electrical signal from the light-receiving element and the driving signal for pivoting the bandpass filter and mixes the electrical signal and the driving signal;
an electrical filter that outputs a signal of a target band from a signal output from the mixer; and
an amplifier that allows the electrical signal output from the light-receiving element to be amplified and outputs the amplified electrical signal to the mixer,
wherein the mixer performs a down-conversion of the amplified electric signal output from the amplifier using the driving signal for pivoting the bandpass filter.