| Similarity | Rank | |
|---|---|---|
| prismatic | 0.842 | 94219 |
| prism | 0.804 | 33309 |
| apertures | 0.784 | 60498 |
| eyepieces | 0.774 | 85711 |
| optically | 0.759 | 62951 |
| diffraction | 0.744 | 50101 |
| convex | 0.743 | 41901 |
| reflectors | 0.742 | 47762 |
| hexagonal | 0.742 | 44787 |
| refraction | 0.740 | 48479 |
| lenses | 0.735 | 6995 |
| eyepiece | 0.732 | 49479 |
| concave | 0.726 | 40411 |
| optics | 0.724 | 21287 |
| Fresnel | 0.723 | 97301 |
| magnification | 0.711 | 31012 |
| halos | 0.711 | 72411 |
| spherical | 0.709 | 23271 |
| planar | 0.708 | 54593 |
| lens | 0.707 | 4608 |
| geometries | 0.702 | 55733 |
| concentric | 0.701 | 37982 |
| diagonals | 0.698 | 92723 |
| reflector | 0.696 | 34800 |
| angles | 0.695 | 8994 |