Drag the object arrow or the F markers to explore
Controls
Lens Type
Show / Hide
Measurements
Object distance (do):8.50 cmImage distance (di):-56.67 cmFocal length (f):10 cmMagnification (m):6.667×Image type:Virtual, Upright, Magnified
Parallel ray Central ray Focal ray
Thin Lens Equation
1/f = 1/do + 1/di
m = −di/do = hi/ho
Optics Scenarios
| Position | Type | Orient | Size |
|---|---|---|---|
| Object beyond 2F | Real | Inverted | Reduced |
| Object at 2F | Real | Inverted | Same size |
| Object between F-2F | Real | Inverted | Magnified |
| Object at F | None | — | — |
| Object inside F | Virtual | Upright | Magnified |
| Diverging lens | Virtual | Upright | Reduced |