Fang Xue, Yongquan Chen, Yaxuan Duan, Hui Lin, Zhengshang Da. Surface response correction method of light intensity detector in high energy laser measurement[J]. Infrared and Laser Engineering, 2021, 50(S2): 20210215
- Infrared and Laser Engineering
- Vol. 50, Issue S2, 20210215 (2021)
Fig. 1. The diagram of the correction device for the surface response non-uniformity of the light intensity detector
Fig. 2. Schematic diagram of signal generator working sequence
Fig. 3. Structure of integrating sphere
Fig. 4. Schematic diagram of illumination uniformity at the calibration position of the detector
Fig. 5. Simulation results of the uniformity of the corrected light source
Fig. 6. Distribution before and after correction of ten percent of approximate CCD full gray: (a) Row direction; (b) Column direction
Fig. 7. Distribution before and after correction of fifty percent approximate of CCD full gray: (a) Row direction; (b) Column direction
Fig. 8. Distribution before and after correction of ninety percent of approximate CCD full gray: (a) Row direction; (b) Column direction
Fig. 9. Comparison of correction results between the two-point method and the proposed method: (a) Row direction; (b) Column direction
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Table 1. Parameters of integral ball
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Table 2. Comparison of modulation degree and contrast before and after correction
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