Spectral camera based on diffraction device group

By using diffraction device sets to diffraction modulation of the beam in the spectral camera, the shortcomings of existing spectral cameras in high-speed detection, stability and resolution are solved, and more efficient and stable spectral detection is achieved, and the equipment volume is reduced.

CN222652378UActive Publication Date: 2025-03-21FIRESTEALER OPTOELECTRONICS (HANGZHOU) CO LTD
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Patent Information

Application Number
CN202421222760.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-05-31
Publication Date
2025-03-21
Estimated Expiration
2034-05-31

AI Technical Summary

Technical Problem

Existing spectral cameras have shortcomings in high-speed spectral detection, stability and resolution, and narrowband filter array spectral cameras take up a lot of space.

Method used

Using a spectral camera design based on a diffraction device group, the light beam is diffraction modulated by a diffraction device to generate first and second diffraction signals, and the wavelength distribution information and spatial distribution information are received and recorded through the image sensor module respectively.

Benefits of technology

Effectively separate and process the wavelength distribution information and spatial distribution information of the spectral image, improve the stability and detection accuracy of the spectral camera, while reducing the device volume and achieving a lighter design.

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Abstract

The utility model relates to a spectrum camera based on a diffraction device group. The spectrum camera comprises a shell, an optical lens group, a diffraction device and an image sensor, the shell is provided with a cavity and a light inlet communicated with the cavity and a target space, and the optical lens group is located at the light inlet; the diffraction device is used for performing diffraction modulation on a light beam input by the optical lens group to form a first diffraction signal light beam and a second diffraction signal light beam; the image sensor comprises a first image sensor module and a second image sensor module, and the first image sensor module is used for receiving the first diffraction signal light beam and recording wavelength distribution information of a target spectral image; and the second image sensor module is used for receiving the second diffraction signal light beam and recording the spatial distribution information of the target spectral image. The device has the advantages of low stray degree and portability.
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