US 12,111,250 B2
On-chip integrated cell phone spectrometer and cell phone
Jiacheng Zhu, Suzhou (CN); Weiqi Lu, Suzhou (CN); Xinhua Chen, Suzhou (CN); Jiankang Zhou, Suzhou (CN); and Weimin Shen, Suzhou (CN)
Assigned to SOOCHOW UNIVERSITY, Suzhou (CN)
Appl. No. 17/908,269
Filed by SOOCHOW UNIVERSITY, Suzhou (CN)
PCT Filed Aug. 23, 2021, PCT No. PCT/CN2021/113940
§ 371(c)(1), (2) Date Aug. 31, 2022,
PCT Pub. No. WO2023/004904, PCT Pub. Date Feb. 2, 2023.
Claims priority of application No. 202110851317.6 (CN), filed on Jul. 27, 2021.
Prior Publication US 2023/0280268 A1, Sep. 7, 2023
Int. Cl. G01N 21/31 (2006.01); G02B 5/20 (2006.01); H04M 1/21 (2006.01)
CPC G01N 21/31 (2013.01) [G02B 5/201 (2013.01); G01N 2201/0221 (2013.01); H04M 1/21 (2013.01)] 8 Claims
OG exemplary drawing
 
1. An on-chip integrated cell phone spectrometer, comprising:
a detection system, comprising a cell phone lens and a focal plane detector integrated with a Bayer filter; and
a spectral filter array, integrated at an edge of the Bayer filter, the spectral filter array comprising a plurality of filtering channels with different spectral transmittances, each filtering channel corresponding to one or more detector pixels, wherein
the cell phone lens is configured to acquire a reflected light from an object under test, the focal plane detector is configured to acquire an intensity signal of the reflected light ray, and after different intensity signals corresponding to different filtering channels are obtained, a data processing system performs spectral reconstruction to obtain spectral data of the object under test; and a spectral measurement and the cell phone lens are independent of each other; only data of detector pixels corresponding to the spectral filter array is used during the spectral measurement; only data of detector pixels corresponding to the Bayer filter is used during photographing.