Da Xu, Guoyu Zhang, Gaofei Sun. Design of Advanced Offner-Type Convex Grating Spectral Radiation Calibration Optical System[J]. Acta Optica Sinica, 2020, 40(8): 0822002
- Acta Optica Sinica
- Vol. 40, Issue 8, 0822002 (2020)
Fig. 1. Schematic of spectral radiation calibration system
Fig. 2. Schematic of Offner-type imaging system
Fig. 3. Meridional light beam imaging
Fig. 4. Sagittal light beam imaging
Fig. 10. Optical structure of advanced Offner-type spectral imaging system
Fig. 11. Spot diagram at λ=500 nm after improvement
Fig. 12. Spot diagram at λ=650 nm after improvement
Fig. 13. Spot diagram at λ=800 nm after improvement
Fig. 14. Curves of RMS radius varies with wavelength after improvement
Fig. 15. Smile for advanced Offner-type structure
Fig. 16. Color distortion for advanced Offner-type structure
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Table 1. Optical structure parameters of traditional Offner-type spectral imaging system
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Table 2. Optical structure parameters of advanced Offner-type spectral imaging system
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