Development of diagnostic imaging spectrometer for tumor on-line operation

Based on the optical system characteristics of coded aperture snapshot spectral imager (CASSI), an optimized optical system of shortwave infrared dual camera CASSI was designed based on improved Offner-Wynne imaging spectrometer. The operating wavelength of the optical system ranges from 900nm to 1700nm, and the focal length is 1200mm. It consists of two parts: the two dimensional imaging system and the multispectral CASSI imaging system. The key technical parameters of the two parts are the same and there is no visual axis difference. Therefore, the optimized optical system can effectively improve real-time performance, optical transmittance and compactness of the dual camera shortwave infrared CASSI, which is conducive to the application in optical measurement scenes in the shooting range.

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Optical Design of a Shortwave Infrared Dual Camera CASSI Based on Improved Offner-Wynne Imaging Spectrometer

Song

Huo

Huang

et al. 2021

J. Phys.: Conf. Ser.

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Optical design of a short-wave infrared prism-grating imaging spectrometer

et al. 2018

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Optical design of a prism–grating-based lenslet array integral field spectrometer

Liu¹,

Chen²,

Liu³

et al. 2018

Opt. Express

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The optics for an integral field spectrometer based on a lenslet array is described. The principle behind the integral field spectroscopy of this system is introduced and partial modeling of the structure of the system is developed. A hybrid design method from physical optics and geometrical optics is used to design the system. Because the functions of the optical system before and after the lenslet array are different, the telephoto system and the spectrograph need to be separated. The optical system was then optimized using a combination design. This method is confirmed by simulation and comparison results and can be used in the design of other lenslet array integral field spectrometers.

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Development of diagnostic imaging spectrometer for tumor on-line operation

Cited by 3 publications

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Optical Design of a Shortwave Infrared Dual Camera CASSI Based on Improved Offner-Wynne Imaging Spectrometer

Optical Design of a Shortwave Infrared Dual Camera CASSI Based on Improved Offner-Wynne Imaging Spectrometer

Optical design of a short-wave infrared prism-grating imaging spectrometer

Optical design of a prism–grating-based lenslet array integral field spectrometer

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