Optical and Reflective Characteristics Measurement and Focal Length Calculation of a Hollow Tetrahedral Corner and a Solid Highly Retroreflective Cubes

Figure 2

(a) The quality and flatness factors of lateral surfaces of tetrahedral optical corner cube

(b) The quality and flatness factors of front surfaces of tetrahedral optical corner cube

(c) The interference between the six sectors of tetrahedral corner cube

(d) Tetrahedral defects during the manufacturing process of corner cubes

(e) Fizeau Interferometer device