| 摘要 |
PROBLEM TO BE SOLVED: To miniaturize an optical element by simple constitution. SOLUTION: The respective light signals ωb, ωa from incident slits 4, 4A are matched with prescribed matching angles γ2, γ4 by first and second reflection surfaces 14, 15. The respective light signals ωc, ωb past a bulk dispersion medium 11 are led out to a prescribed leading-out angle γ1 by first and second reflection surfaces 24, 25. The light signals ωb, ωa and light signals ωc, ωb are matched and led out with and to the desired matching angles γ2, γ4 and leading-out angle θ1 at a short distance. Then, the optical element A is miniaturized by the simple constitution. |
