| 摘要 |
PROBLEM TO BE SOLVED: To provide an optical imaging device that hardly generates a ghost image and can be manufactured inexpensively, and an optical imaging method.SOLUTION: An optical imaging device is provided with many blocks 15 arranged to be aligned that have: first and second light reflection surfaces 11, 12 arranged to make right angles; and third light reflection surfaces 13 orthogonal to the first and second light reflection surfaces 11, 12. Each of the blocks 15 is provided with a fourth light reflection surface 14 for changing an optical path of retroreflection light 16 that has passed through the first to third light reflection surfaces 11-13 and has been reflected.SELECTED DRAWING: Figure 1 |
