The surface of an elliptical mirror is an ellipsoid. An ellipse has two unique focal points. Its core optical property is that any ray emanating from one focal point will be reflected and converge precisely onto the other focal point. This characteristic is exact and aberration-free, making the elliptical mirror a perfect "point-to-point" energy transfer system.
High-efficiency light collection.
Point-to-point imaging.
Aberrations present (e.g., spherical aberration).
| Material | H-K9L or Fused Silica |
| Surface Flatness | λ/10 @ 633 nm |
| Parallelism | < 1 arcmin |
| Diameter Tolerance | +0.0, -0.2mm |
| Thickness Tolerance | ±0.5mm |
| Reflective Coating | Aluminum, silver, gold |
| Surface Quality | 10-5 |
| Back Surface | Fine Ground |
