Invention Grant
- Patent Title: Multispectral color imaging device based on integrating sphere lighting and calibration methods thereof
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Application No.: US15995198Application Date: 2018-06-01
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Publication No.: US10798317B2Publication Date: 2020-10-06
- Inventor: John Haozhong Xin , Hui-liang Shen , Quan-geng Ge
- Applicant: The Hong Kong Research Institute of Textiles and Apparel Limited
- Applicant Address: CN Hong Kong
- Assignee: The Hong Kong Research Institute of Textiles and Apparel Limited
- Current Assignee: The Hong Kong Research Institute of Textiles and Apparel Limited
- Current Assignee Address: CN Hong Kong
- Agency: Spruson & Ferguson (Hong Kong) Limited
- Priority: com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@358e4561
- Main IPC: H04N5/33
- IPC: H04N5/33 ; G06T7/90 ; G01J3/00 ; G01J3/10 ; G01J3/28 ; G01J3/51 ; H04N9/04 ; G01J3/02 ; G01J3/12

Abstract:
The present invention provides a multispectral color imaging device, an automatic calibration method based on a reference reflective surface, and a method for eliminating background signals. A multispectral color imaging device including a light house module comprising a light source and a light intensity collection device surrounding the light source; an integrating sphere module including an integrating sphere, a light inlet on one side of the integrating sphere, a light outlet on the top of the integrating sphere, a sample holder gateway on the other side of the integrating sphere and a sample holder having access to the interior of the integrating sphere; and a filter wheel module including a camera, a filter wheel below the camera, and a lens below the filter wheel. The device and calibration methods of the present invention together improve the accuracy and stability of the measurement.
Public/Granted literature
- US20190182440A1 MULTISPECTRAL COLOR IMAGING DEVICE BASED ON INTEGRATING SPHERE LIGHTING AND CALIBRATION METHODS THEREOF Public/Granted day:2019-06-13
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