OPTICAL SYSTEM AND DESIGN METHOD THEREFOR

WIPO Patent Application WO/2022/188673

A1

An optical system and a design method therefor. The optical system comprises: a spectrum chip (100) and an optical assembly (200) held on a sensing path of the spectrum chip (100). The spectrum chip (100) comprises a photodetection layer (110) and a light modulation layer (120) located on a sensing path of the photodetection layer (110), and the photodetection layer (110) obtains, from incident optical signals, an optical signal modulated by the modulation layer. The optical assembly (200) is configured to receive optical signals from a photographed target and direct the optical signals to the spectrum chip (100), wherein the optical assembly (200) causes the optical signals directed to various positions of the spectrum chip (100) to have a chief ray angle having a fixed degree and a light receiving cone angle having a predetermined degree less than or equal to 45 degrees. By means of the optical assembly (200) having a specific structural configuration, the chief ray angle of each pixel point of the spectrum chip (100) is controlled to be fixed, and the light receiving cone angle thereof is controlled to be fixed and within a preset range so as to reduce a spectrum recovery error of the spectrum chip (100).

ZHANG HONG (CN)
WANG YU (CN)
HUANG ZHILEI (CN)

PCT/CN2022/078784

September 15, 2022

March 02, 2022

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SHANGHAI SEETRUM TECH CO LTD (CN)

G01N21/31

CN215069988U	2021-12-07
CN210376122U	2020-04-21
CN111025528A	2020-04-17
CN111811651A	2020-10-23
CN111490060A	2020-08-04
CN111505820A	2020-08-07
CN103913226A	2014-07-09
CN111947780A	2020-11-17
CN109642822A	2019-04-16
US20080237453A1	2008-10-02
KR20170011536A	2017-02-02

FONDEE IP LAW LLC (CN)

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