Fig. 1. Fluorescence material model and situation of light tracing

Fig. 2. Result of fluorescence signal detection

Fig. 3. Schematic of traditional fluorescence collection light path

Fig. 4. Reflector and fluorescence NSC three-dimensional (3D) model

Fig. 5. NSC 3D simulation of parabolic reflector on light with large divergence angle

Fig. 6. Base point diagrams of plano-convex lens. (a) Right-convex; (b) left-convex

Fig. 7. NSC 3D simulation with equivalent focal length. (a) Single and double convex lens; (b) double plano-convex lens group

Fig. 8. Analysis diagrams of rectangular detector imaging. (a) Single and double convex lens; (b) double plano-convex lens group

Fig. 9. NSC 3D simulation with parfocal lenses. (a) Single and double convex lens; (b) double plano-convex lens group

Fig. 10. Comparison of NSC shadow model diagrams. (a) Traditional fluorescent collection light path; (b) optimized fluorescent collection light path

Fig. 11. Comparative analysis diagram of rectangular detector. (a) Traditional fluorescent collection light path; (b) optimized fluorescent collection light path