Fig. 1. Structural diagram. (a) Interferometer; (b) collimator

Fig. 2. Structural diagram of illumination system (sample channel)

Fig. 3. (a) Relative illumination diagrams; (b) schematic of illumination system

Fig. 4. (a) Horizontal relative illumination; (b) spot diagrams of two systems

Fig. 5. Abbe number and partial dispersion coefficients of selected lens materials

Fig. 6. 6 and 8 lens systems. (a) Structural diagram; (b) focal shift diagram

Fig. 7. Three dimensional structural diagram of OCT system. (a) With aspheric lens; (b) without aspheric lens

Fig. 8. OCT systems without and with aspheric lens. (a) Interference fringes; (b) coherence intensity diagram of fringes