Off-axis triple inverse optical design

1 Indicator Requirements(1) Working band range: choose the working band from 450-900nm(2) The bandwidth is greater than 100nm(3) Field of view Angle 8.5°(4) Spatial resolution: 5m@500km(5) Polarization parameters: linear polarization or full polarization(6) Polarization measurement accuracy: better than ±0.025 (P=0.2)(7) Radiation calibration accuracy: better than 5%(8) Signal-to-noise ratio: better than 38dB (height Angle 30°, reflectivity 0.2)(9) Optical MTF: >0.5@36lp/mm2. Polarization measurement principle and optical system schemeAccording to the requirement of simultaneous polarization measurement, the method of simultaneous polarization measurement with different amplitude is chosen, and the mathematical principle model is deduced3. Calculation of main index parameters of optical system3.1 Selection of detector3.2 Estimation of signal-to-noise ratio3.3 Calculation of optical system parameters3.4 Consideration of MTF for optical systems4. Optical system design and analysis4.1 Input analysis of optical design4.2 Optical layout and parameters4.3 Evaluation of optical system performance4.4 System tolerance analysis5. Design of polarization component and precision analysis of polarization measurement6. Film layer design of the system7 Test Scheme