Enter focal length and object distance to get image distance from 1/f = 1/dₒ + 1/dᵢ, plus orientation, real/virtual and size. For school physics and imaging practice.
凹/凸面镜的成像公式(符号约定同薄透镜)。
| Item | Standard / Source | Key Point |
|---|---|---|
| Spherical-mirror equation | Classic optics (Hecht, Optics, 5th ed.) | 1/f = 1/do + 1/di with f = R/2 |